harmony 鸿蒙Web

2022-08-09
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Web

The component can be used to display web pages. It can be used with the @ohos.web.webview module, which provides APIs for web control.

NOTE

This component is supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.

You can preview how this component looks on a real device. The preview is not yet available in the DevEco Studio Previewer.

Required Permissions

To use online resources, the application must have the ohos.permission.INTERNET permission. For details about how to apply for a permission, see Declaring Permissions.

Child Components

Not supported

APIs

Web(options: { src: ResourceStr, controller: WebviewController|WebController})

NOTE

Transition animation is not supported.

<Web> components on a page must be bound to different WebviewControllers.

Parameters

Name	Type	Mandatory	Description
src	ResourceStr	Yes	Address of a web page resource. To access local resource files, use the $rawfile or resource protocol. To load a local resource file in the sandbox outside of the application package, use file:// to specify the path of the sandbox.
controller	WebviewController⁹⁺ \|WebController	Yes	Controller. This API is deprecated since API version 9. You are advised to use WebviewController instead.

Example

Example of loading online web pages:

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

Example of loading local web pages:

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        // Load a local resource file through $rawfile.
        Web({ src: $rawfile("index.html"), controller: this.controller })
      }
    }
  }

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        // Load a local resource file through the resource protocol.
        Web({ src: "resource://rawfile/index.html", controller: this.controller })
      }
    }
  }

Example of loading local resource files in the sandbox:

Obtain the sandbox path through the constructed singleton object GlobalContext.

// GlobalContext.ts
export class GlobalContext {
private constructor() {}
private static instance: GlobalContext;
private _objects = new Map<string, Object>();


public static getContext(): GlobalContext {
  if (!GlobalContext.instance) {
    GlobalContext.instance = new GlobalContext();
  }
  return GlobalContext.instance;
}


getObject(value: string): Object|undefined {
  return this._objects.get(value);
}


setObject(key: string, objectClass: Object): void {
  this._objects.set(key, objectClass);
}
}

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  import { GlobalContext } from '../GlobalContext.ts'

  let url = 'file://' + GlobalContext.getContext().getObject("filesDir") + '/index.html'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        // Load the files in the sandbox.
        Web({ src: url, controller: this.controller })
      }
    }
  }

Modify the EntryAbility.ts file.

The following uses filesDir as an example to describe how to obtain the path of the sandbox. For details about how to obtain other paths, see Obtaining Application File Paths. “`ts // xxx.ts import UIAbility from ‘@ohos.app.ability.UIAbility’; import AbilityConstant from ‘@ohos.app.ability.AbilityConstant’; import Want from ‘@ohos.app.ability.Want’; import web_webview from ‘@ohos.web.webview’; import { GlobalContext } from ‘../GlobalContext’

export default class EntryAbility extends UIAbility { onCreate(want: Want, launchParam: AbilityConstant.LaunchParam) { // Data synchronization between the UIAbility component and UI can be implemented by binding filesDir to the GlobalContext object. GlobalContext.getContext().setObject(“filesDir”, this.context.filesDir); console.log(“Sandbox path is ” + GlobalContext.getContext().getObject(“filesDir”)) } }


  HTML file to be loaded:
  ```html
  <!-- index.html -->
  <!DOCTYPE html>
  <html>
      <body>
          <p>Hello World</p>
      </body>
  </html>

Attributes

Only the following universal attributes are supported: width, height, padding, margin, and border.

domStorageAccess

domStorageAccess(domStorageAccess: boolean)

Sets whether to enable the DOM Storage API. By default, this feature is disabled.

Parameters

Name	Type	Mandatory	Default Value	Description
domStorageAccess	boolean	Yes	false	Whether to enable the DOM Storage API.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .domStorageAccess(true)
      }
    }
  }

fileAccess

fileAccess(fileAccess: boolean)

Sets whether to enable access to the file system in the application. This setting does not affect the access to the files specified through $rawfile(filepath/filename).

Parameters

Name	Type	Mandatory	Default Value	Description
fileAccess	boolean	Yes	true	Whether to enable access to the file system in the application. By default, this feature is enabled.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .fileAccess(true)
      }
    }
  }

imageAccess

imageAccess(imageAccess: boolean)

Sets whether to enable automatic image loading. By default, this feature is enabled.

Parameters

Name	Type	Mandatory	Default Value	Description
imageAccess	boolean	Yes	true	Whether to enable automatic image loading.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .imageAccess(true)
      }
    }
  }

javaScriptProxy

javaScriptProxy(javaScriptProxy: { object: object, name: string, methodList: Array<string>, controller: WebviewController|WebController})

Registers a JavaScript object with the window. APIs of this object can then be invoked in the window. The parameters cannot be updated.

Parameters

Name	Type	Mandatory	Default Value	Description
object	object	Yes	-	Object to be registered. Methods can be declared, but attributes cannot.
name	string	Yes	-	Name of the object to be registered, which is the same as that invoked in the window.
methodList	Array<string>	Yes	-	Methods of the JavaScript object to be registered at the application side.
controller	WebviewController⁹⁺ \|WebController	Yes	-	Controller. This API is deprecated since API version 9. You are advised to use WebviewController instead.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  class TestObj {
    constructor() {
    }

    test(data1: string, data2: string, data3: string): string {
      console.log("data1:" + data1)
      console.log("data2:" + data2)
      console.log("data3:" + data3)
      return "AceString"
    }

    toString(): void {
      console.log('toString' + "interface instead.")
    }
  }

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    testObj = new TestObj();
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .javaScriptAccess(true)
          .javaScriptProxy({
            object: this.testObj,
            name: "objName",
            methodList: ["test", "toString"],
            controller: this.controller,
        })
      }
    }
  }

javaScriptAccess

javaScriptAccess(javaScriptAccess: boolean)

Sets whether JavaScript scripts can be executed. By default, JavaScript scripts can be executed.

Parameters

Name	Type	Mandatory	Default Value	Description
javaScriptAccess	boolean	Yes	true	Whether JavaScript scripts can be executed.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .javaScriptAccess(true)
      }
    }
  }

mixedMode

mixedMode(mixedMode: MixedMode)

Sets whether to enable loading of HTTP and HTTPS hybrid content can be loaded. By default, this feature is disabled.

Parameters

Name	Type	Mandatory	Default Value	Description
mixedMode	MixedMode	Yes	MixedMode.None	Mixed content to load.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State mode: MixedMode = MixedMode.All
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .mixedMode(this.mode)
      }
    }
  }

onlineImageAccess

onlineImageAccess(onlineImageAccess: boolean)

Sets whether to enable access to online images through HTTP and HTTPS. By default, this feature is enabled.

Parameters

Name	Type	Mandatory	Default Value	Description
onlineImageAccess	boolean	Yes	true	Whether to enable access to online images through HTTP and HTTPS.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onlineImageAccess(true)
      }
    }
  }

zoomAccess

zoomAccess(zoomAccess: boolean)

Sets whether to enable zoom gestures. By default, this feature is enabled.

Parameters

Name	Type	Mandatory	Default Value	Description
zoomAccess	boolean	Yes	true	Whether to enable zoom gestures.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .zoomAccess(true)
      }
    }
  }

overviewModeAccess

overviewModeAccess(overviewModeAccess: boolean)

Sets whether to load web pages by using the overview mode. By default, this feature is enabled. Currently, only mobile devices are supported.

Parameters

Name	Type	Mandatory	Default Value	Description
overviewModeAccess	boolean	Yes	true	Whether to load web pages by using the overview mode.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .overviewModeAccess(true)
      }
    }
  }

databaseAccess

databaseAccess(databaseAccess: boolean)

Sets whether to enable database access. By default, this feature is disabled.

Parameters

Name	Type	Mandatory	Default Value	Description
databaseAccess	boolean	Yes	false	Whether to enable database access.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .databaseAccess(true)
      }
    }
  }

geolocationAccess

geolocationAccess(geolocationAccess: boolean)

Sets whether to enable geolocation access. By default, this feature is enabled.

Parameters

Name	Type	Mandatory	Default Value	Description
geolocationAccess	boolean	Yes	true	Whether to enable geolocation access.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .geolocationAccess(true)
      }
    }
  }

mediaPlayGestureAccess

mediaPlayGestureAccess(access: boolean)

Sets whether video playback must be started by user gestures. This API is not applicable to videos that do not have an audio track or whose audio track is muted.

Parameters

Name	Type	Mandatory	Default Value	Description
access	boolean	Yes	true	Whether video playback must be started by user gestures.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State access: boolean = true
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .mediaPlayGestureAccess(this.access)
      }
    }
  }

multiWindowAccess⁹⁺

multiWindowAccess(multiWindow: boolean)

Sets whether to enable the multi-window permission. Enabling the multi-window permission requires implementation of the onWindowNew event. For the sample code, see onWindowNew.

Parameters

Name	Type	Mandatory	Default Value	Description
multiWindow	boolean	Yes	false	Whether to enable the multi-window permission.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
        .multiWindowAccess(false)
      }
    }
  }

horizontalScrollBarAccess⁹⁺

horizontalScrollBarAccess(horizontalScrollBar: boolean)

Sets whether to display the horizontal scrollbar, including the default system scrollbar and custom scrollbar. By default, the horizontal scrollbar is displayed.

Parameters

Name	Type	Mandatory	Default Value	Description
horizontalScrollBar	boolean	Yes	true	Whether to display the horizontal scrollbar.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: $rawfile('index.html'), controller: this.controller })
        .horizontalScrollBarAccess(true)
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
      <title>Demo</title>
      <style>
        body {
          width:3000px;
          height:3000px;
          padding-right:170px;
          padding-left:170px;
          border:5px solid blueviolet
        }
      </style>
  </head>
  <body>
  Scroll Test
  </body>
  </html>

verticalScrollBarAccess⁹⁺

verticalScrollBarAccess(verticalScrollBar: boolean)

Sets whether to display the vertical scrollbar, including the default system scrollbar and custom scrollbar. By default, the vertical scrollbar is displayed.

Parameters

Name	Type	Mandatory	Default Value	Description
verticalScrollBarAccess	boolean	Yes	true	Whether to display the vertical scrollbar.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: $rawfile('index.html'), controller: this.controller })
        .verticalScrollBarAccess(true)
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
      <title>Demo</title>
      <style>
        body {
          width:3000px;
          height:3000px;
          padding-right:170px;
          padding-left:170px;
          border:5px solid blueviolet
        }
      </style>
  </head>
  <body>
  Scroll Test
  </body>
  </html>

password^(deprecated)

password(password: boolean)

Sets whether the password should be saved. This API is a void API.

NOTE

This API is deprecated since API version 10, and no new API is provided as a substitute.

cacheMode

cacheMode(cacheMode: CacheMode)

Sets the cache mode.

Parameters

Name	Type	Mandatory	Default Value	Description
cacheMode	CacheMode	Yes	CacheMode.Default	Cache mode to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State mode: CacheMode = CacheMode.None
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .cacheMode(this.mode)
      }
    }
  }

textZoomAtio^(deprecated)

textZoomAtio(textZoomAtio: number)

Sets the text zoom ratio of the page. The default value is 100, which indicates 100%.

This API is deprecated since API version 9. You are advised to use textZoomRatio⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
textZoomAtio	number	Yes	100	Text zoom ratio to set. The value is an integer. The value range is (0, +∞).

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()
    @State atio: number = 150
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .textZoomAtio(this.atio)
      }
    }
  }

textZoomRatio⁹⁺

textZoomRatio(textZoomRatio: number)

Sets the text zoom ratio of the page. The default value is 100, which indicates 100%.

Parameters

Name	Type	Mandatory	Default Value	Description
textZoomRatio	number	Yes	100	Text zoom ratio to set. The value is an integer. The value range is (0, +∞).

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State atio: number = 150
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .textZoomRatio(this.atio)
      }
    }
  }

initialScale⁹⁺

initialScale(percent: number)

Sets the scale factor of the entire page. The default value is 100%.

Parameters

Name	Type	Mandatory	Default Value	Description
percent	number	Yes	100	Scale factor of the entire page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State percent: number = 100
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .initialScale(this.percent)
      }
    }
  }

userAgent^(deprecated)

userAgent(userAgent: string)

Sets the user agent.

NOTE

This API is supported since API version 8 and deprecated since API version 10. You are advised to use setCustomUserAgent¹⁰⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
userAgent	string	Yes	-	User agent to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State userAgent:string = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36'
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .userAgent(this.userAgent)
      }
    }
  }

blockNetwork⁹⁺

blockNetwork(block: boolean)

Sets whether to block online downloads.

Parameters

Name	Type	Mandatory	Default Value	Description
block	boolean	Yes	false	Whether to block online downloads.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State block: boolean = true
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .blockNetwork(this.block)
      }
    }
  }

defaultFixedFontSize⁹⁺

defaultFixedFontSize(size: number)

Sets the default fixed font size for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
size	number	Yes	13	Default fixed font size to set, in px. The value ranges from -2^31 to 2^31-1. In actual rendering, values greater than 72 are handled as 72, and values less than 1 are handled as 1.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State fontSize: number = 16
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .defaultFixedFontSize(this.fontSize)
      }
    }
  }

defaultFontSize⁹⁺

defaultFontSize(size: number)

Sets the default font size for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
size	number	Yes	16	Default font size to set, in px. The value ranges from -2^31 to 2^31-1. In actual rendering, values greater than 72 are handled as 72, and values less than 1 are handled as 1.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State fontSize: number = 13
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .defaultFontSize(this.fontSize)
      }
    }
  }

minFontSize⁹⁺

minFontSize(size: number)

Sets the minimum font size for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
size	number	Yes	8	Minimum font size to set, in px. The value ranges from -2^31 to 2^31-1. In actual rendering, values greater than 72 are handled as 72, and values less than 1 are handled as 1.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State fontSize: number = 13
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .minFontSize(this.fontSize)
      }
    }
  }

minLogicalFontSize⁹⁺

minLogicalFontSize(size: number)

Sets the minimum logical font size for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
size	number	Yes	8	Minimum logical font size to set, in px. The value ranges from -2^31 to 2^31-1. In actual rendering, values greater than 72 are handled as 72, and values less than 1 are handled as 1.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State fontSize: number = 13
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .minLogicalFontSize(this.fontSize)
      }
    }
  }

webFixedFont⁹⁺

webFixedFont(family: string)

Sets the fixed font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	monospace	Fixed font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "monospace"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webFixedFont(this.family)
      }
    }
  }

webSansSerifFont⁹⁺

webSansSerifFont(family: string)

Sets the sans serif font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	sans-serif	Sans serif font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "sans-serif"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webSansSerifFont(this.family)
      }
    }
  }

webSerifFont⁹⁺

webSerifFont(family: string)

Sets the serif font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	serif	Serif font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "serif"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webSerifFont(this.family)
      }
    }
  }

webStandardFont⁹⁺

webStandardFont(family: string)

Sets the standard font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	sans serif	Standard font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "sans-serif"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webStandardFont(this.family)
      }
    }
  }

webFantasyFont⁹⁺

webFantasyFont(family: string)

Sets the fantasy font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	fantasy	Fantasy font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "fantasy"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webFantasyFont(this.family)
      }
    }
  }

webCursiveFont⁹⁺

webCursiveFont(family: string)

Sets the cursive font family for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
family	string	Yes	cursive	Cursive font family to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State family: string = "cursive"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .webCursiveFont(this.family)
      }
    }
  }

darkMode⁹⁺

darkMode(mode: WebDarkMode)

Sets the web dark mode. By default, web dark mode is disabled. When it is enabled, the <Web> component enables the dark theme defined for web pages if the theme has been defined in prefers-color-scheme of a media query, and remains unchanged otherwise. To enable the forcible dark mode, use this API with forceDarkAccess.

Parameters

Name	Type	Mandatory	Default Value	Description
mode	WebDarkMode	Yes	WebDarkMode.Off	Web dark mode to set.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State mode: WebDarkMode = WebDarkMode.On
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .darkMode(this.mode)
      }
    }
  }

forceDarkAccess⁹⁺

forceDarkAccess(access: boolean)

Sets whether to enable forcible dark mode for the web page. By default, this feature is turned off. This API is applicable only when dark mode is enabled in darkMode.

Parameters

Name	Type	Mandatory	Default Value	Description
access	boolean	Yes	false	Whether to enable forcible dark mode for the web page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State mode: WebDarkMode = WebDarkMode.On
    @State access: boolean = true
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .darkMode(this.mode)
          .forceDarkAccess(this.access)
      }
    }
  }

tableData^(deprecated)

tableData(tableData: boolean)

Sets whether form data should be saved. This API is a void API.

NOTE

This API is deprecated since API version 10, and no new API is provided as a substitute.

wideViewModeAccess^(deprecated)

wideViewModeAccess(wideViewModeAccess: boolean)

Sets whether to support the viewport attribute of the HTML <meta> tag. This API is a void API.

NOTE

This API is deprecated since API version 10, and no new API is provided as a substitute.

pinchSmooth⁹⁺

pinchSmooth(isEnabled: boolean)

Sets whether to enable smooth pinch mode for the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
isEnabled	boolean	Yes	false	Whether to enable smooth pinch mode for the web page.

Example

// xxx.ets
import web_webview from '@ohos.web.webview'
@Entry
@Component
struct WebComponent {
  controller: web_webview.WebviewController = new web_webview.WebviewController()
  build() {
    Column() {
      Web({ src: 'www.example.com', controller: this.controller })
        .pinchSmooth(true)
    }
  }
}

allowWindowOpenMethod¹⁰⁺

allowWindowOpenMethod(flag: boolean)

Sets whether to allow a new window to automatically open through JavaScript.

When flag is set to true, a new window can automatically open through JavaScript. When flag is set to false, a new window can still automatically open through JavaScript for user behavior, but cannot for non-user behavior. The user behavior here refers to that a user requests to open a new window (window.open) within 5 seconds.

This API takes effect only when javaScriptAccess is enabled.

This API opens a new window when multiWindowAccess is enabled and opens a local window when multiWindowAccess is disabled.

The default value of flag is subject to the settings of the persist.web.allowWindowOpenMethod.enabled system attribute. If this attribute is not set, the default value of flag is false.

To check the settings of persist.web.allowWindowOpenMethod.enabled,

run the hdc shell param get persist.web.allowWindowOpenMethod.enabled command. If the attribute is set to 0 or does not exist, you can run the hdc shell param set persist.web.allowWindowOpenMethod.enabled 1 command to enable it.

Parameters

Name	Type	Mandatory	Default Value	Description
flag	boolean	Yes	Subject to the settings of the persist.web.allowWindowOpenMethod.enabled system attribute. If this attribute is set, the default value of flag is true. Otherwise, the default value of flag is false.	Whether to allow a new window to automatically open through JavaScript.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  // There are two <Web> components on the same page. When the WebComponent object opens a new window, the NewWebViewComp object is displayed. 
  @CustomDialog
  struct NewWebViewComp {
  controller?: CustomDialogController
  webviewController1: web_webview.WebviewController = new web_webview.WebviewController()
  build() {
      Column() {
        Web({ src: "", controller: this.webviewController1 })
          .javaScriptAccess(true)
          .multiWindowAccess(false)
          .onWindowExit(()=> {
            console.info("NewWebViewComp onWindowExit")
            if (this.controller) {
              this.controller.close()
            }
          })
        }
    }
  }

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    dialogController: CustomDialogController|null = null
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .javaScriptAccess(true)
          // MultiWindowAccess needs to be enabled.
          .multiWindowAccess(true)
          .allowWindowOpenMethod(true)
          .onWindowNew((event) => {
            if (this.dialogController) {
              this.dialogController.close()
            }
            let popController:web_webview.WebviewController = new web_webview.WebviewController()
            this.dialogController = new CustomDialogController({
              builder: NewWebViewComp({webviewController1: popController})
            })
            this.dialogController.open()
            // Return the WebviewController object corresponding to the new window to the <Web> kernel.
            // If opening a new window is not needed, set the parameter to null when calling the event.handler.setWebController API.
            // If the event.handler.setWebController API is not called, the render process will be blocked.
            event.handler.setWebController(popController)
          })
      }
    }
  }

mediaOptions¹⁰⁺

mediaOptions(options: WebMediaOptions)

Sets the web-based media playback policy, including the validity period for automatically resuming a paused web audio, and whether the audio of multiple <Web> instances in an application is exclusive.

NOTE

Audios in the same <Web> instance are considered as the same audio.

The media playback policy controls videos with an audio track.

After the parameter settings are updated, the playback must be started again for the settings to take effect.

It is recommended that you set the same audioExclusive value for all <Web> components.

Parameters

Name	Type	Mandatory	Default Value	Description
options	WebMediaOptions	Yes	{resumeInterval: 0, audioExclusive: true}	Web-based media playback policy. The default value of resumeInterval is 0, indicating that the playback is not automatically resumed.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State options: WebMediaOptions = {resumeInterval: 10, audioExclusive: true}
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .mediaOptions(this.options)
      }
    }
  }

Events

The universal events are not supported.

onAlert

onAlert(callback: (event?: { url: string; message: string; result: JsResult }) => boolean)

Called when alert() is invoked to display an alert dialog box on the web page.

Parameters

Name	Type	Description
url	string	URL of the web page where the dialog box is displayed.
message	string	Message displayed in the dialog box.
result	JsResult	User operation.

Return value

Type	Description
boolean	If the callback returns true, the application can use the system dialog box (allows the confirm and cancel operations) and invoke the JsResult API to instruct the <Web> component to exit the current page based on the user operation. If the callback returns false, the <Web> component cannot trigger the system dialog box.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: $rawfile("index.html"), controller: this.controller })
          .onAlert((event) => {
            if (event) {
              console.log("event.url:" + event.url)
              console.log("event.message:" + event.message)
              AlertDialog.show({
                title: 'onAlert',
                message: 'text',
                primaryButton: {
                  value: 'cancel',
                  action: () => {
                    event.result.handleCancel()
                  }
                },
                secondaryButton: {
                  value: 'ok',
                  action: () => {
                    event.result.handleConfirm()
                  }
                },
                cancel: () => {
                  event.result.handleCancel()
                }
              })
            }
            return true
          })
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" charset="utf-8">
  </head>
  <body>
    <h1>WebView onAlert Demo</h1>
    <button onclick="myFunction()">Click here</button>
    <script>
      function myFunction() {
        alert("Hello World");
      }
    </script>
  </body>
  </html>

onBeforeUnload

onBeforeUnload(callback: (event?: { url: string; message: string; result: JsResult }) => boolean)

Called when this page is about to exit after the user refreshes or closes the page. This API takes effect only when the page has obtained focus.

Parameters

Name	Type	Description
url	string	URL of the web page where the dialog box is displayed.
message	string	Message displayed in the dialog box.
result	JsResult	User operation.

Return value

Type	Description
boolean	If the callback returns true, the application can use the system dialog box (allows the confirm and cancel operations) and invoke the JsResult API to instruct the <Web> component to exit the current page based on the user operation. If the callback returns false, the <Web> component cannot trigger the system dialog box.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: $rawfile("index.html"), controller: this.controller })
          .onBeforeUnload((event) => {
            if (event) {
              console.log("event.url:" + event.url)
              console.log("event.message:" + event.message)
              AlertDialog.show({
                title: 'onBeforeUnload',
                message: 'text',
                primaryButton: {
                  value: 'cancel',
                  action: () => {
                    event.result.handleCancel()
                  }
                },
                secondaryButton: {
                  value: 'ok',
                  action: () => {
                    event.result.handleConfirm()
                  }
                },
                cancel: () => {
                  event.result.handleCancel()
                }
              })
            }
            return true
          })
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" charset="utf-8">
  </head>
  <body onbeforeunload="return myFunction()">
    <h1>WebView onBeforeUnload Demo</h1>
    <a href="https://www.example.com">Click here</a>
    <script>
      function myFunction() {
        return "onBeforeUnload Event";
      }
    </script>
  </body>
  </html>

onConfirm

onConfirm(callback: (event?: { url: string; message: string; result: JsResult }) => boolean)

Called when confirm() is invoked by the web page.

Parameters

Name	Type	Description
url	string	URL of the web page where the dialog box is displayed.
message	string	Message displayed in the dialog box.
result	JsResult	User operation.

Return value

Type	Description
boolean	If the callback returns true, the application can use the system dialog box (allows the confirm and cancel operations) and invoke the JsResult API to instruct the <Web> component to exit the current page based on the user operation. If the callback returns false, the <Web> component cannot trigger the system dialog box.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: $rawfile("index.html"), controller: this.controller })
          .onConfirm((event) => {
            if (event) {
              console.log("event.url:" + event.url)
              console.log("event.message:" + event.message)
              AlertDialog.show({
                title: 'onConfirm',
                message: 'text',
                primaryButton: {
                  value: 'cancel',
                  action: () => {
                    event.result.handleCancel()
                  }
                },
                secondaryButton: {
                  value: 'ok',
                  action: () => {
                    event.result.handleConfirm()
                  }
                },
                cancel: () => {
                  event.result.handleCancel()
                }
              })
            }
            return true
          })
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" charset="utf-8">
  </head>

  <body>
    <h1>WebView onConfirm Demo</h1>
    <button onclick="myFunction()">Click here</button>
    <p id="demo"></p>
    <script>
      function myFunction() {
        let x;
        let r = confirm("click button!");
        if (r == true) {
          x = "ok";
        } else {
          x = "cancel";
        }
        document.getElementById("demo").innerHTML = x;
      }
    </script>
  </body>
  </html>

onPrompt⁹⁺

onPrompt(callback: (event?: { url: string; message: string; value: string; result: JsResult }) => boolean)

Parameters

Name	Type	Description
url	string	URL of the web page where the dialog box is displayed.
message	string	Message displayed in the dialog box.
result	JsResult	User operation.

Return value

Type	Description
boolean	If the callback returns true, the application can use the system dialog box (allows the confirm and cancel operations) and invoke the JsResult API to instruct the <Web> component to exit the current page based on the user operation. If the callback returns false, the <Web> component cannot trigger the system dialog box.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: $rawfile("index.html"), controller: this.controller })
          .onPrompt((event) => {
            if (event) {
              console.log("url:" + event.url)
              console.log("message:" + event.message)
              console.log("value:" + event.value)
              AlertDialog.show({
                title: 'onPrompt',
                message: 'text',
                primaryButton: {
                  value: 'cancel',
                  action: () => {
                    event.result.handleCancel()
                  }
                },
                secondaryButton: {
                  value: 'ok',
                  action: () => {
                    event.result.handlePromptConfirm(event.value)
                  }
                },
                cancel: () => {
                  event.result.handleCancel()
                }
              })
            }
            return true
          })
      }
    }
  }

HTML file to be loaded:

  <!--index.html-->
  <!DOCTYPE html>
  <html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" charset="utf-8">
  </head>

  <body>
    <h1>WebView onPrompt Demo</h1>
    <button onclick="myFunction()">Click here</button>
    <p id="demo"></p>
    <script>
      function myFunction() {
        let message = prompt("Message info", "Hello World");
        if (message != null && message != "") {
          document.getElementById("demo").innerHTML = message;
        }
      }
    </script>
  </body>
  </html>

onConsole

onConsole(callback: (event?: { message: ConsoleMessage }) => boolean)

Called to notify the host application of a JavaScript console message.

Parameters

Name	Type	Description
message	ConsoleMessage	Console message.

Return value

Type	Description
boolean	Returns true if the message will not be printed to the console; returns false otherwise.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onConsole((event) => {
            if (event) {
              console.log('getMessage:' + event.message.getMessage())
              console.log('getSourceId:' + event.message.getSourceId())
              console.log('getLineNumber:' + event.message.getLineNumber())
              console.log('getMessageLevel:' + event.message.getMessageLevel())
            }
            return false
          })
      }
    }
  }

onDownloadStart

onDownloadStart(callback: (event?: { url: string, userAgent: string, contentDisposition: string, mimetype: string, contentLength: number }) => void)

Instructs the main application to start downloading a file.

Parameters

Name	Type	Description
url	string	URL for the download task.
userAgent	string	User agent used for download.
contentDisposition	string	Content-Disposition response header returned by the server, which may be empty.
mimetype	string	MIME type of the content returned by the server.
contentLength	number	Length of the content returned by the server.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onDownloadStart((event) => {
            if (event) {
              console.log('url:' + event.url)
              console.log('userAgent:' + event.userAgent)
              console.log('contentDisposition:' + event.contentDisposition)
              console.log('contentLength:' + event.contentLength)
              console.log('mimetype:' + event.mimetype)
            }
          })
      }
    }
  }

onErrorReceive

onErrorReceive(callback: (event?: { request: WebResourceRequest, error: WebResourceError }) => void)

Called when an error occurs during web page loading. For better results, simplify the implementation logic in the callback. This API is called when there is no network connection.

Parameters

Name	Type	Description
request	WebResourceRequest	Encapsulation of a web page request.
error	WebResourceError	Encapsulation of a web page resource loading error.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onErrorReceive((event) => {
            if (event) {
              console.log('getErrorInfo:' + event.error.getErrorInfo())
              console.log('getErrorCode:' + event.error.getErrorCode())
              console.log('url:' + event.request.getRequestUrl())
              console.log('isMainFrame:' + event.request.isMainFrame())
              console.log('isRedirect:' + event.request.isRedirect())
              console.log('isRequestGesture:' + event.request.isRequestGesture())
              console.log('getRequestHeader_headerKey:' + event.request.getRequestHeader().toString())
              let result = event.request.getRequestHeader()
              console.log('The request header result size is ' + result.length)
              for (let i of result) {
                console.log('The request header key is : ' + i.headerKey + ', value is : ' + i.headerValue)
              }
            }
          })
      }
    }
  }

onHttpErrorReceive

onHttpErrorReceive(callback: (event?: { request: WebResourceRequest, response: WebResourceResponse }) => void)

Called when an HTTP error (the response code is greater than or equal to 400) occurs during web page resource loading.

Parameters

Name	Type	Description
request	WebResourceRequest	Encapsulation of a web page request.
response	WebResourceResponse	Encapsulation of a resource response.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onHttpErrorReceive((event) => {
            if (event) {
              console.log('url:' + event.request.getRequestUrl())
              console.log('isMainFrame:' + event.request.isMainFrame())
              console.log('isRedirect:' + event.request.isRedirect())
              console.log('isRequestGesture:' + event.request.isRequestGesture())
              console.log('getResponseData:' + event.response.getResponseData())
              console.log('getResponseEncoding:' + event.response.getResponseEncoding())
              console.log('getResponseMimeType:' + event.response.getResponseMimeType())
              console.log('getResponseCode:' + event.response.getResponseCode())
              console.log('getReasonMessage:' + event.response.getReasonMessage())
              let result = event.request.getRequestHeader()
              console.log('The request header result size is ' + result.length)
              for (let i of result) {
                console.log('The request header key is : ' + i.headerKey + ' , value is : ' + i.headerValue)
              }
              let resph = event.response.getResponseHeader()
              console.log('The response header result size is ' + resph.length)
              for (let i of resph) {
                console.log('The response header key is : ' + i.headerKey + ' , value is : ' + i.headerValue)
              }
            }
          })
      }
    }
  }

onPageBegin

onPageBegin(callback: (event?: { url: string }) => void)

Called when the web page starts to be loaded. This API is called only for the main frame content, and not for the iframe or frameset content.

Parameters

Name	Type	Description
url	string	URL of the page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onPageBegin((event) => {
            if (event) {
              console.log('url:' + event.url)
            }
          })
      }
    }
  }

onPageEnd

onPageEnd(callback: (event?: { url: string }) => void)

Called when the web page loading is complete. This API takes effect only for the main frame content.

Parameters

Name	Type	Description
url	string	URL of the page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onPageEnd((event) => {
            if (event) {
              console.log('url:' + event.url)
            }
          })
      }
    }
  }

onProgressChange

onProgressChange(callback: (event?: { newProgress: number }) => void)

Called when the web page loading progress changes.

Parameters

Name	Type	Description
newProgress	number	New loading progress. The value is an integer ranging from 0 to 100.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onProgressChange((event) => {
            if (event) {
              console.log('newProgress:' + event.newProgress)
            }
          })
      }
    }
  }

onTitleReceive

onTitleReceive(callback: (event?: { title: string }) => void)

Called when the document title of the web page is changed.

Parameters

Name	Type	Description
title	string	Document title.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onTitleReceive((event) => {
            if (event) {
              console.log('title:' + event.title)
            }
          })
      }
    }
  }

onRefreshAccessedHistory

onRefreshAccessedHistory(callback: (event?: { url: string, isRefreshed: boolean }) => void)

Called when loading of the web page is complete. This API is used by an application to update the historical link it accessed.

Parameters

Name	Type	Description
url	string	URL to be accessed.
isRefreshed	boolean	Whether the page is reloaded. The value true means that the page is reloaded by invoking the refresh⁹⁺ API, and false means the opposite.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onRefreshAccessedHistory((event) => {
            if (event) {
              console.log('url:' + event.url + ' isReload:' + event.isRefreshed)
            }
          })
      }
    }
  }

onSslErrorReceive^(deprecated)

onSslErrorReceive(callback: (event?: { handler: Function, error: object }) => void)

Called when an SSL error occurs during resource loading.

NOTE

This API is supported since API version 8 and deprecated since API version 9. You are advised to use onSslErrorEventReceive⁹⁺ instead.

onFileSelectorShow^(deprecated)

onFileSelectorShow(callback: (event?: { callback: Function, fileSelector: object }) => void)

Called to process an HTML form whose input type is file, in response to the tapping of the Select File button.

NOTE

This API is supported since API version 8 and deprecated since API version 9. You are advised to use onShowFileSelector⁹⁺ instead.

onRenderExited⁹⁺

onRenderExited(callback: (event?: { renderExitReason: RenderExitReason }) => void)

Called when the rendering process exits abnormally.

Parameters

Name	Type	Description
renderExitReason	RenderExitReason	Cause for the abnormal exit of the rendering process.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'chrome://crash/', controller: this.controller })
          .onRenderExited((event) => {
            if (event) {
              console.log('reason:' + event.renderExitReason)
            }
          })
      }
    }
  }

onShowFileSelector⁹⁺

onShowFileSelector(callback: (event?: { result: FileSelectorResult, fileSelector: FileSelectorParam }) => boolean)

Called to process an HTML form whose input type is file, in response to the tapping of the Select File button.

Parameters

Name	Type	Description
result	FileSelectorResult	File selection result to be sent to the <Web> component.
fileSelector	FileSelectorParam	Information about the file selector.

Return value

Type	Description
boolean	The value true means that the pop-up window provided by the system is displayed. If the callback returns false, the <Web> component cannot trigger the system dialog box.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview';
  import picker from '@ohos.file.picker';
  import { BusinessError } from '@ohos.base';

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: $rawfile('index.html'), controller: this.controller })
          .onShowFileSelector((event) => {
            console.log('MyFileUploader onShowFileSelector invoked')
            const documentSelectOptions = new picker.DocumentSelectOptions();
            let uri: string|null = null;
            const documentViewPicker = new picker.DocumentViewPicker();
            documentViewPicker.select(documentSelectOptions).then((documentSelectResult) => {
              uri = documentSelectResult[0];
              console.info('documentViewPicker.select to file succeed and uri is:' + uri);
              if (event) {
                event.result.handleFileList([uri]);
              }
            }).catch((err: BusinessError) => {
              console.error(`Invoke documentViewPicker.select failed, code is ${err.code}, message is ${err.message}`);
            })
            return true
          })
      }
    }
  }

HTML file to be loaded:

  <!DOCTYPE html>
  <html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" charset="utf-8">
  </head>
  <body>
    <form id="upload-form" enctype="multipart/form-data">
      <input type="file" id="upload" name="upload"/>
      </form>
  </body>
  </html>

onResourceLoad⁹⁺

onResourceLoad(callback: (event: {url: string}) => void)

Called to notify the <Web> component of the URL of the loaded resource file.

Parameters

Name	Type	Description
url	string	URL of the loaded resource file.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onResourceLoad((event) => {
            console.log('onResourceLoad: ' + event.url)
          })
      }
    }
  }

onScaleChange⁹⁺

onScaleChange(callback: (event: {oldScale: number, newScale: number}) => void)

Called when the display ratio of this page changes.

Parameters

Name	Type	Description
oldScale	number	Display ratio of the page before the change.
newScale	number	Display ratio of the page after the change.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onScaleChange((event) => {
            console.log('onScaleChange changed from ' + event.oldScale + ' to ' + event.newScale)
          })
      }
    }
  }

onUrlLoadIntercept^(deprecated)

onUrlLoadIntercept(callback: (event?: { data:string|WebResourceRequest }) => boolean)

Called when the <Web> component is about to access a URL. This API is used to determine whether to block the access, which is allowed by default. This API is deprecated since API version 10. You are advised to use onLoadIntercept¹⁰⁺ instead.

Parameters

Name	Type	Description
data	string \|WebResourceRequest	URL information.

Return value

Type	Description
boolean	Returns true if the access is blocked; returns false otherwise.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onUrlLoadIntercept((event) => {
            if (event) {
              console.log('onUrlLoadIntercept ' + event.data.toString())
            }
            return true
          })
      }
    }
  }

onInterceptRequest⁹⁺

onInterceptRequest(callback: (event?: { request: WebResourceRequest}) => WebResourceResponse)

Called when the <Web> component is about to access a URL. This API is used to block the URL and return the response data.

Parameters

Name	Type	Description
request	WebResourceRequest	Information about the URL request.

Return value

Type	Description
WebResourceResponse	If response data is returned, the data is loaded based on the response data. If no response data is returned, null is returned, indicating that the data is loaded in the original mode.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    responseweb: WebResourceResponse = new WebResourceResponse()
    heads:Header[] = new Array()
    @State webdata: string = "<!DOCTYPE html>\n" +
    "<html>\n"+
    "<head>\n"+
    "<title>intercept test</title>\n"+
    "</head>\n"+
    "<body>\n"+
    "<h1>intercept test</h1>\n"+
    "</body>\n"+
    "</html>"
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onInterceptRequest((event) => {
            if (event) {
              console.log('url:' + event.request.getRequestUrl())
            }
            let head1:Header = {
              headerKey:"Connection",
              headerValue:"keep-alive"
            }
            let head2:Header = {
              headerKey:"Cache-Control",
              headerValue:"no-cache"
            }
            let length = this.heads.push(head1)
            length = this.heads.push(head2)
            this.responseweb.setResponseHeader(this.heads)
            this.responseweb.setResponseData(this.webdata)
            this.responseweb.setResponseEncoding('utf-8')
            this.responseweb.setResponseMimeType('text/html')
            this.responseweb.setResponseCode(200)
            this.responseweb.setReasonMessage('OK')
            return this.responseweb
          })
      }
    }
  }

onHttpAuthRequest⁹⁺

onHttpAuthRequest(callback: (event?: { handler: HttpAuthHandler, host: string, realm: string}) => boolean)

Called when an HTTP authentication request is received.

Parameters

Name	Type	Description
handler	HttpAuthHandler	User operation.
host	string	Host to which HTTP authentication credentials apply.
realm	string	Realm to which HTTP authentication credentials apply.

Return value

Type	Description
boolean	Returns true if the authentication is successful; returns false otherwise.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    httpAuth: boolean = false

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onHttpAuthRequest((event) => {
            if (event) {
              AlertDialog.show({
                title: 'onHttpAuthRequest',
                message: 'text',
                primaryButton: {
                  value: 'cancel',
                  action: () => {
                    event.handler.cancel()
                  }
                },
                secondaryButton: {
                  value: 'ok',
                  action: () => {
                    this.httpAuth = event.handler.isHttpAuthInfoSaved()
                    if (this.httpAuth == false) {
                      web_webview.WebDataBase.saveHttpAuthCredentials(
                        event.host,
                        event.realm,
                        "2222",
                        "2222"
                      )
                      event.handler.cancel()
                    }
                  }
                },
                cancel: () => {
                  event.handler.cancel()
                }
              })
            }
            return true
          })
      }
    }
  }

onSslErrorEventReceive⁹⁺

onSslErrorEventReceive(callback: (event: { handler: SslErrorHandler, error: SslError }) => void)

Called when an SSL error occurs during resource loading.

Parameters

Name	Type	Description
handler	SslErrorHandler	User operation.
error	SslError	Error code.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onSslErrorEventReceive((event) => {
            AlertDialog.show({
              title: 'onSslErrorEventReceive',
              message: 'text',
              primaryButton: {
                value: 'confirm',
                action: () => {
                  event.handler.handleConfirm()
                }
              },
              secondaryButton: {
                value: 'cancel',
                action: () => {
                  event.handler.handleCancel()
                }
              },
              cancel: () => {
                event.handler.handleCancel()
              }
            })
          })
      }
    }
  }

onClientAuthenticationRequest⁹⁺

onClientAuthenticationRequest(callback: (event: {handler : ClientAuthenticationHandler, host : string, port : number, keyTypes : Array, issuers : Array}) => void)

Called when an SSL client certificate request is received.

Parameters

Name	Type	Description
handler	ClientAuthenticationHandler	User operation.
host	string	Host name of the server that requests a certificate.
port	number	Port number of the server that requests a certificate.
keyTypes	Array	Acceptable asymmetric private key types.
issuers	Array	Issuer of the certificate that matches the private key.

Example This example shows two-way authentication when interconnection with certificate management is not supported.

  // xxx.ets API9
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onClientAuthenticationRequest((event) => {
            AlertDialog.show({
              title: 'onClientAuthenticationRequest',
              message: 'text',
              primaryButton: {
                value: 'confirm',
                action: () => {
                  event.handler.confirm("/system/etc/user.pk8", "/system/etc/chain-user.pem")
                }
              },
              secondaryButton: {
                value: 'cancel',
                action: () => {
                  event.handler.cancel()
                }
              },
              cancel: () => {
                event.handler.ignore()
              }
            })
          })
      }
    }
  }

This example shows two-way authentication when interconnection with certificate management is supported.

Construct the singleton object GlobalContext.

// GlobalContext.ts
export class GlobalContext {
private constructor() {}
private static instance: GlobalContext;
private _objects = new Map<string, Object>();


public static getContext(): GlobalContext {
  if (!GlobalContext.instance) {
    GlobalContext.instance = new GlobalContext();
  }
  return GlobalContext.instance;
}


getObject(value: string): Object|undefined {
  return this._objects.get(value);
}


setObject(key: string, objectClass: Object): void {
  this._objects.set(key, objectClass);
}
}

Implement two-way authentication. “`ts // xxx.ets API10 import common from ‘@ohos.app.ability.common’; import Want from ‘@ohos.app.ability.Want’; import web_webview from ‘@ohos.web.webview’ import { BusinessError } from ‘@ohos.base’; import bundleManager from ‘@ohos.bundle.bundleManager’ import { GlobalContext } from ‘../GlobalContext’

let uri = “”;

export default class CertManagerService { private static sInstance: CertManagerService; private authUri = “”; private appUid = “”;

public static getInstance(): CertManagerService {
  if (CertManagerService.sInstance == null) {
    CertManagerService.sInstance = new CertManagerService();
  }
  return CertManagerService.sInstance;
}

async grantAppPm(callback: (message: string) => void) {
  let message = '';
  let bundleFlags = bundleManager.BundleFlag.GET_BUNDLE_INFO_DEFAULT|bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION;
  // Note: Replace com.example.myapplication with the actual application name.
  try {
    bundleManager.getBundleInfoForSelf(bundleFlags).then((data) => {
      console.info('getBundleInfoForSelf successfully. Data: %{public}s', JSON.stringify(data));
      this.appUid = data.appInfo.uid.toString();
    }).catch((err: BusinessError) => {
      console.error('getBundleInfoForSelf failed. Cause: %{public}s', err.message);
    });
  } catch (err) {
    let message = (err as BusinessError).message;
    console.error('getBundleInfoForSelf failed: %{public}s', message);
  }

  // Note: Add GlobalContext.getContext().setObject("AbilityContext", this.context) to the onCreate function in the MainAbility.ts file.
  let abilityContext = GlobalContext.getContext().getObject("AbilityContext") as common.UIAbilityContext
  await abilityContext.startAbilityForResult(
    {
      bundleName: "com.ohos.certmanager",
      abilityName: "MainAbility",
      uri: "requestAuthorize",
      parameters: {
        appUid: this.appUid, // Pass the UID of the requesting application.
      }
    } as Want)
    .then((data: common.AbilityResult) => {
      if (!data.resultCode && data.want) {
        if (data.want.parameters) {
          this.authUri = data.want.parameters.authUri as string; // Obtain the returned authUri after successful authorization.
        }
      }
    })
  message += "after grantAppPm authUri: " + this.authUri;
  uri = this.authUri;
  callback(message)
}

}

@Entry @Component struct WebComponent { controller: web_webview.WebviewController = new web_webview.WebviewController(); @State message: string =‘Hello World’ // message is used for debugging and observation. certManager = CertManagerService.getInstance();

build() {
  Row() {
    Column() {
      Row() {
        // Step 1: Perform authorization to obtain the URI.
        Button('GrantApp')
          .onClick(() => {
            this.certManager.grantAppPm((data) => {
              this.message = data;
            });
          })
        // Step 2: After the authorization, in two-way authentication, the onClientAuthenticationRequest callback is used to send the URI to the web server for authentication.
        Button("ClientCertAuth")
          .onClick(() => {
            this.controller.loadUrl('https://www.example2.com'); // Server website that supports two-way authentication.
          })
      }

      Web({ src: 'https://www.example1.com', controller: this.controller })
        .fileAccess(true)
        .javaScriptAccess(true)
        .domStorageAccess(true)
        .onlineImageAccess(true)

      .onClientAuthenticationRequest((event) => {
        AlertDialog.show({
          title: 'ClientAuth',
          message: 'Text',
          confirm: {
            value: 'Confirm',
            action: () => {
              event.handler.confirm(uri);
            }
          },
          cancel: () => {
            event.handler.cancel();
          }
        })
      })
    }
  }
  .width('100%')
  .height('100%')
}

}


### onPermissionRequest<sup>9+</sup>

onPermissionRequest(callback: (event?: { request: PermissionRequest }) => void)

Called when a permission request is received.

**Parameters**

|Name  |Type                                  |Description        |
|-------|----------------------------------------|--------------|
|request|[PermissionRequest](#permissionrequest9)|User operation.|

**Example**

  ```ts
  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: $rawfile('index.html'), controller: this.controller })
          .onPermissionRequest((event) => {
            if (event) {
              AlertDialog.show({
                title: 'title',
                message: 'text',
                primaryButton: {
                  value: 'deny',
                  action: () => {
                    event.request.deny()
                  }
                },
                secondaryButton: {
                  value: 'onConfirm',
                  action: () => {
                    event.request.grant(event.request.getAccessibleResource())
                  }
                },
                cancel: () => {
                  event.request.deny()
                }
              })
            }
          })
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
  <head>
    <meta charset="UTF-8">
  </head>
  <body>
  <video id="video" width="500px" height="500px" autoplay="autoplay"></video>
  <canvas id="canvas" width="500px" height="500px"></canvas>
  <br>
  <input type="button" title="HTML5 Camera" value="Enable Camera" onclick="getMedia()"/>
  <script>
    function getMedia()
    {
      let constraints = {
        video: {width: 500, height: 500},
        audio: true
      };
      // Obtain the video camera area.
      let video = document.getElementByld("video");
      // Returned Promise object
      let promise = navigator.mediaDevices.getUserMedia(constraints);
      // then() is asynchronous. Invoke the MediaStream object as a parameter.
      promise.then(function (MediaStream) {
        video.srcObject = MediaStream;
        video.play();
      });
    }
  </script>
  </body>
  </html>

onContextMenuShow⁹⁺

onContextMenuShow(callback: (event?: { param: WebContextMenuParam, result: WebContextMenuResult }) => boolean)

Called when a context menu is displayed after the user clicks the right mouse button or long presses a specific element, such as an image or a link.

Parameters

Name	Type	Description
param	WebContextMenuParam	Parameters related to the context menu.
result	WebContextMenuResult	Result of the context menu.

Return value

Type	Description
boolean	The value true means a custom menu, and false means the default menu.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onContextMenuShow((event) => {
            if (event) {
              console.info("x coord = " + event.param.x())
              console.info("link url = " + event.param.getLinkUrl())
            }
            return true
        })
      }
    }
  }

onScroll⁹⁺

onScroll(callback: (event: {xOffset: number, yOffset: number}) => void)

Called when the scrollbar of the page scrolls.

Parameters

Name	Type	Description
xOffset	number	Position of the scrollbar on the x-axis relative to the leftmost of the web page.
yOffset	number	Position of the scrollbar on the y-axis relative to the top of the web page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
        .onScroll((event) => {
            console.info("x = " + event.xOffset)
            console.info("y = " + event.yOffset)
        })
      }
    }
  }

onGeolocationShow

onGeolocationShow(callback: (event?: { origin: string, geolocation: JsGeolocation }) => void)

Called when a request to obtain the geolocation information is received.

Parameters

Name	Type	Description
origin	string	Index of the origin.
geolocation	JsGeolocation	User operation.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:$rawfile('index.html'), controller:this.controller })
        .geolocationAccess(true)
        .onGeolocationShow((event) => {
          if (event) {
            AlertDialog.show({
              title: 'title',
              message: 'text',
              confirm: {
                value: 'onConfirm',
                action: () => {
                  event.geolocation.invoke(event.origin, true, true)
                }
              },
              cancel: () => {
                event.geolocation.invoke(event.origin, false, true)
              }
            })
          }
        })
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
  <head>
    <meta charset="UTF-8">
  </head>
  <body>
  <p id="demo">Click to obtain your current coordinates (which may take some time): </p>
  <button onclick="getLocation()">Click Me</button>
  <script>
    var x=document.grtElementByld("demo");
    function getLocation()
    {
      if (navigator.geolocation)
      {
        navigator.geolocation.getCurrentPosition(showPosition);
      }
      else
      {
        x.innerHTML="Cannot obtain geographical location with the current browser.";
      }
    }

    function showPosition(position)
    {
      x.innerHTML="Latitude:" + position.coords.latitude + "Longitude:" + position.coords.longitude;
    }
  </script>
  </body>
  </html>

onGeolocationHide

onGeolocationHide(callback: () => void)

Called to notify the user that the request for obtaining the geolocation information received when onGeolocationShow is called has been canceled.

Parameters

Name	Type	Description
callback	() => void	Callback invoked when the request for obtaining geolocation information has been canceled.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller:this.controller })
        .geolocationAccess(true)
        .onGeolocationHide(() => {
          console.log("onGeolocationHide...")
        })
      }
    }
  }

onFullScreenEnter⁹⁺

onFullScreenEnter(callback: (event: { handler: FullScreenExitHandler }) => void)

Called when the component enters full screen mode.

Parameters

Name	Type	Description
handler	FullScreenExitHandler	Function handle for exiting full screen mode.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    handler: FullScreenExitHandler|null = null
    build() {
      Column() {
        Web({ src:'www.example.com', controller:this.controller })
        .onFullScreenEnter((event) => {
          console.log("onFullScreenEnter...")
          this.handler = event.handler
        })
      }
    }
  }

onFullScreenExit⁹⁺

onFullScreenExit(callback: () => void)

Called when the component exits full screen mode.

Parameters

Name	Type	Description
callback	() => void	Callback invoked when the component exits full screen mode.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    handler: FullScreenExitHandler|null = null
    build() {
      Column() {
        Web({ src:'www.example.com', controller:this.controller })
        .onFullScreenExit(() => {
          console.log("onFullScreenExit...")
          if (this.handler) {
            this.handler.exitFullScreen()
          }
        })
        .onFullScreenEnter((event) => {
          this.handler = event.handler
        })
      }
    }
  }

onWindowNew⁹⁺

onWindowNew(callback: (event: {isAlert: boolean, isUserTrigger: boolean, targetUrl: string, handler: ControllerHandler}) => void)

Called when a new window is created. This API takes effect when multiWindowAccess is enabled. If the event.handler.setWebController API is not called, the render process will be blocked. If opening a new window is not needed, set the parameter to null when calling the event.handler.setWebController API.

Parameters

Name	Type	Description
isAlert	boolean	Whether to open the target URL in a new window. The value true means to open the target URL in a new window, and false means to open the target URL in a new tab.
isUserTrigger	boolean	Whether the creation is triggered by the user. The value true means that the creation is triggered by the user, and false means the opposite.
targetUrl	string	Target URL.
handler	ControllerHandler	WebviewController instance for setting the new window.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  // There are two <Web> components on the same page. When the WebComponent object opens a new window, the NewWebViewComp object is displayed. 
  @CustomDialog
  struct NewWebViewComp {
  controller?: CustomDialogController
  webviewController1: web_webview.WebviewController = new web_webview.WebviewController()
  build() {
      Column() {
        Web({ src: "", controller: this.webviewController1 })
          .javaScriptAccess(true)
          .multiWindowAccess(false)
          .onWindowExit(()=> {
            console.info("NewWebViewComp onWindowExit")
            if (this.controller) {
              this.controller.close()
            }
          })
        }
    }
  }

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    dialogController: CustomDialogController|null = null
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .javaScriptAccess(true)
          // MultiWindowAccess needs to be enabled.
          .multiWindowAccess(true)
          .allowWindowOpenMethod(true)
          .onWindowNew((event) => {
            if (this.dialogController) {
              this.dialogController.close()
            }
            let popController:web_webview.WebviewController = new web_webview.WebviewController()
            this.dialogController = new CustomDialogController({
              builder: NewWebViewComp({webviewController1: popController})
            })
            this.dialogController.open()
            // Return the WebviewController object corresponding to the new window to the <Web> kernel.
            // If opening a new window is not needed, set the parameter to null when calling the event.handler.setWebController API.
            // If the event.handler.setWebController API is not called, the render process will be blocked.
            event.handler.setWebController(popController)
          })
      }
    }
  }

onWindowExit⁹⁺

onWindowExit(callback: () => void)

Called when this window is closed.

Parameters

Name	Type	Description
callback	() => void	Callback invoked when the window is closed.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
        .onWindowExit(() => {
          console.log("onWindowExit...")
        })
      }
    }
  }

onSearchResultReceive⁹⁺

onSearchResultReceive(callback: (event?: {activeMatchOrdinal: number, numberOfMatches: number, isDoneCounting: boolean}) => void): WebAttribute

Called to notify the caller of the search result on the web page.

Parameters

Name	Type	Description
activeMatchOrdinal	number	Sequence number of the current match, which starts from 0.
numberOfMatches	number	Total number of matches.
isDoneCounting	boolean	Whether the search operation on the current page is complete. This API may be called multiple times until isDoneCounting is true.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
     	  .onSearchResultReceive(ret => {
     	    if (ret) {
            console.log("on search result receive:" + "[cur]" + ret.activeMatchOrdinal +
              "[total]" + ret.numberOfMatches + "[isDone]"+ ret.isDoneCounting)
     	    }
     	  })
      }
    }
  }

onDataResubmitted⁹⁺

onDataResubmitted(callback: (event: {handler: DataResubmissionHandler}) => void)

Called when the web form data is resubmitted.

Parameters

Name	Type	Description
handler	DataResubmissionHandler	Handler for resubmitting web form data.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  import business_error from '@ohos.base';
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        // After you click Submit on the web page, you can click Refresh to trigger the function again.
        Button('refresh')
        .onClick(() => {
          try {
            this.controller.refresh();
          } catch (error) {
            let e: business_error.BusinessError = error as business_error.BusinessError;
            console.error(`ErrorCode: ${e.code},  Message: ${e.message}`);
          }
        })
        Web({ src:$rawfile('index.html'), controller: this.controller })
         .onDataResubmitted((event) => {
          console.log('onDataResubmitted')
          event.handler.resend();
        })
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
  <head>
    <meta charset="utf-8">
  </head>
  <body>
    <form action="http://httpbin.org/post" method="post">
      <input type="text" name="username">
      <input type="submit" name="Submit">
    </form>
  </body>
  </html>

onPageVisible⁹⁺

onPageVisible(callback: (event: {url: string}) => void)

Called when the old page is not displayed and the new page is about to be visible.

Parameters

Name	Type	Description
url	string	URL of the new page that is able to be visible when the old page is not displayed.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
         .onPageVisible((event) => {
          console.log('onPageVisible url:' + event.url)
        })
      }
    }
  }

onInterceptKeyEvent⁹⁺

onInterceptKeyEvent(callback: (event: KeyEvent) => boolean)

Called when the key event is intercepted and before it is consumed by the webview.

Parameters

Name	Type	Description
event	KeyEvent	Key event that is triggered.

Return value

Type	Description
boolean	Whether to continue to transfer the key event to the webview kernel.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
         .onInterceptKeyEvent((event) => {
          if (event.keyCode == 2017||event.keyCode == 2018) {
            console.info(`onInterceptKeyEvent get event.keyCode ${event.keyCode}`)
            return true;
          }
          return false;
        })
      }
    }
  }

onTouchIconUrlReceived⁹⁺

onTouchIconUrlReceived(callback: (event: {url: string, precomposed: boolean}) => void)

Called when an apple-touch-icon URL is received.

Parameters

Name	Type	Description
url	string	Received apple-touch-icon URL.
precomposed	boolean	Whether the apple-touch-icon is precomposed.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.baidu.com', controller: this.controller })
         .onTouchIconUrlReceived((event) => {
          console.log('onTouchIconUrlReceived:' + JSON.stringify(event))
        })
      }
    }
  }

onFaviconReceived⁹⁺

onFaviconReceived(callback: (event: {favicon: image.PixelMap}) => void)

Called when this web page receives a new favicon.

Parameters

Name	Type	Description
favicon	PixelMap	PixelMap object of the received favicon.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  import image from "@ohos.multimedia.image"
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State icon: image.PixelMap|undefined = undefined;
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
         .onFaviconReceived((event) => {
          console.log('onFaviconReceived');
          this.icon = event.favicon;
        })
      }
    }
  }

onAudioStateChanged¹⁰⁺

onAudioStateChanged(callback: (event: { playing: boolean }) => void)

Called when the audio playback status changes on the web page.

Parameters

Name	Type	Description
playing	boolean	Audio playback status on the current page. The value true means that audio is being played, and false means the opposite.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    @State playing: boolean = false
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
          .onAudioStateChanged(event => {
            this.playing = event.playing
            console.debug('onAudioStateChanged playing: ' + this.playing)
          })
      }
    }
  }

onFirstContentfulPaint¹⁰⁺

onFirstContentfulPaint(callback: (event?: { navigationStartTick: number, firstContentfulPaintMs: number }) => void)

Called when the web page content is first rendered.

Parameters

Name	Type	Description
navigationStartTick	number	Navigation start time, in microseconds.
firstContentfulPaintMs	number	Time between navigation and when the content is first rendered, in milliseconds.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
          .onFirstContentfulPaint(event => {
            if (event) {
              console.log("onFirstContentfulPaint:" + "[navigationStartTick]:" +
              event.navigationStartTick + ", [firstContentfulPaintMs]:" +
              event.firstContentfulPaintMs)
            }
          })
      }
    }
  }

onLoadIntercept¹⁰⁺

onLoadIntercept(callback: (event?: { data: WebResourceRequest }) => boolean)

Called when the <Web> component is about to access a URL. This API is used to determine whether to block the access, which is allowed by default.

Parameters

Name	Type	Description
request	WebResourceRequest	Information about the URL request.

Return value

Type	Description
boolean	Returns true if the access is blocked; returns false otherwise.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onLoadIntercept((event) => {
            console.log('url:' + event.data.getRequestUrl())
            console.log('isMainFrame:' + event.data.isMainFrame())
            console.log('isRedirect:' + event.data.isRedirect())
            console.log('isRequestGesture:' + event.data.isRequestGesture())
            return true
          })
      }
    }
  }

onRequestSelected

onRequestSelected(callback: () => void)

Called when the <Web> component obtains the focus.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onRequestSelected(() => {
            console.log('onRequestSelected')
          })
      }
    }
  }

onScreenCaptureRequest¹⁰⁺

onScreenCaptureRequest(callback: (event?: { handler: ScreenCaptureHandler }) => void)

Called when a screen capture request is received.

Parameters

Name	Type	Description
handler	ScreenCaptureHandler	User operation.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
          .onScreenCaptureRequest((event) => {
            if (event) {
              AlertDialog.show({
                title: 'title: ' + event.handler.getOrigin(),
                message: 'text',
                primaryButton: {
                  value: 'deny',
                  action: () => {
                    event.handler.deny()
                  }
                },
                secondaryButton: {
                  value: 'onConfirm',
                  action: () => {
                    event.handler.grant({ captureMode: WebCaptureMode.HOME_SCREEN })
                  }
                },
                cancel: () => {
                  event.handler.deny()
                }
              })
            }
          })
      }
    }
  }

onOverScroll¹⁰⁺

onOverScroll(callback: (event: {xOffset: number, yOffset: number}) => void)

Called to indicate the offset by which the web page overscrolls.

Parameters

Name	Type	Description
xOffset	number	Horizontal overscroll offset based on the leftmost edge of the web page.
yOffset	number	Vertical overscroll offset based on the top edge of the web page.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src: 'www.example.com', controller: this.controller })
        .onOverScroll((event) => {
            console.info("x = " + event.xOffset)
            console.info("y = " + event.yOffset)
        })
      }
    }
  }

onControllerAttached¹⁰⁺

onControllerAttached(callback: () => void)

Called when the controller is successfully bound to the <Web> component. The controller must be WebviewController.

As the web page is not yet loaded when this callback is called, APIs for operating the web page cannot be used in the callback, for example, zoomIn and zoomOut. Other APIs, such as loadUrl and getWebId, which do not involve web page operations, can be used properly.

Example

The following example uses loadUrl in the callback to load the web page.

  // xxx.ets
  import web_webview from '@ohos.web.webview'

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: '', controller: this.controller })
          .onControllerAttached(() => {
            this.controller.loadUrl($rawfile("index.html"));
          })
      }
    }
  }

The following example uses getWebId in the callback

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  import { BusinessError } from '@ohos.base';

  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()

    build() {
      Column() {
        Web({ src: $rawfile("index.html"), controller: this.controller })
          .onControllerAttached(() => {
            try {
              let id = this.controller.getWebId();
              console.log("id: " + id);
            } catch (error) {
              let code = (error as BusinessError).code;
              let message = (error as BusinessError).message;
              console.error(`ErrorCode: ${code},  Message: ${message}`);
            }
          })
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
      <body>
          <p>Hello World</p>
      </body>
  </html>

ConsoleMessage

Implements the ConsoleMessage object. For the sample code, see onConsole.

getLineNumber

getLineNumber(): number

Obtains the number of rows in this console message.

Return value

Type	Description
number	Number of rows in the console message.

getMessage

getMessage(): string

Obtains the log information of this console message.

Return value

Type	Description
string	Log information of the console message.

getMessageLevel

getMessageLevel(): MessageLevel

Obtains the level of this console message.

Return value

Type	Description
MessageLevel	Level of the console message.

getSourceId

getSourceId(): string

Obtains the path and name of the web page source file.

Return value

Type	Description
string	Path and name of the web page source file.

JsResult

Implements the JsResult object, which indicates the result returned to the <Web> component to indicate the user operation performed in the dialog box. For the sample code, see onAlert Event.

handleCancel

handleCancel(): void

Notifies the <Web> component of the user’s cancel operation in the dialog box.

handleConfirm

handleConfirm(): void

Notifies the <Web> component of the user’s confirm operation in the dialog box.

handlePromptConfirm⁹⁺

handlePromptConfirm(result: string): void

Notifies the <Web> component of the user’s confirm operation in the dialog box as well as the dialog box content.

Parameters

Name	Type	Mandatory	Default Value	Description
result	string	Yes	-	User input in the dialog box.

FullScreenExitHandler⁹⁺

Implements a FullScreenExitHandler object for listening for exiting full screen mode. For the sample code, see onFullScreenEnter.

exitFullScreen⁹⁺

exitFullScreen(): void

Exits full screen mode.

ControllerHandler⁹⁺

Implements a WebviewController object for new <Web> components. For the sample code, see onWindowNew.

setWebController⁹⁺

setWebController(controller: WebviewController): void

Sets a WebviewController object. If opening a new window is not needed, set the parameter to null.

Parameters

Name	Type	Mandatory	Default Value	Description
controller	WebviewController	Yes	-	WebviewController object of the <Web> component. If opening a new window is not needed, set it to null.

WebResourceError

Implements the WebResourceError object. For the sample code, see onErrorReceive.

getErrorCode

getErrorCode(): number

Obtains the error code for resource loading.

Return value

Type	Description
number	Error code for resource loading.

getErrorInfo

getErrorInfo(): string

Obtains error information about resource loading.

Return value

Type	Description
string	Error information about resource loading.

WebResourceRequest

Implements the WebResourceRequest object. For the sample code, see onErrorReceive.

getRequestHeader

getResponseHeader() : Array<Header>

Obtains the information about the resource request header.

Return value

Type	Description
Array<Header>	Information about the resource request header.

getRequestUrl

getRequestUrl(): string

Obtains the URL of the resource request.

Return value

Type	Description
string	URL of the resource request.

isMainFrame

isMainFrame(): boolean

Checks whether the resource request is in the main frame.

Return value

Type	Description
boolean	Whether the resource request is in the main frame.

isRedirect

isRedirect(): boolean

Checks whether the resource request is redirected by the server.

Return value

Type	Description
boolean	Whether the resource request is redirected by the server.

isRequestGesture

isRequestGesture(): boolean

Checks whether the resource request is associated with a gesture (for example, a tap).

Return value

Type	Description
boolean	Whether the resource request is associated with a gesture (for example, a tap).

getRequestMethod⁹⁺

getRequestMethod(): string

Obtains the request method.

Return value

Type	Description
string	Request method.

Header

Describes the request/response header returned by the <Web> component.

Name	Type	Description
headerKey	string	Key of the request/response header.
headerValue	string	Value of the request/response header.

WebResourceResponse

Implements the WebResourceResponse object. For the sample code, see onHttpErrorReceive.

getReasonMessage

getReasonMessage(): string

Obtains the status code description of the resource response.

Return value

Type	Description
string	Status code description of the resource response.

getResponseCode

getResponseCode(): number

Obtains the status code of the resource response.

Return value

Type	Description
number	Status code of the resource response.

getResponseData

getResponseData(): string

Obtains the data in the resource response.

Return value

Type	Description
string	Data in the resource response.

getResponseEncoding

getResponseEncoding(): string

Obtains the encoding string of the resource response.

Return value

Type	Description
string	Encoding string of the resource response.

getResponseHeader

getResponseHeader() : Array<Header>

Obtains the resource response header.

Return value

Type	Description
Array<Header>	Resource response header.

getResponseMimeType

getResponseMimeType(): string

Obtains the MIME type of the resource response.

Return value

Type	Description
string	MIME type of the resource response.

setResponseData⁹⁺

setResponseData(data: string|number |Resource)

Sets the data in the resource response.

Parameters

Name	Type	Mandatory	Default Value	Description
data	string \|number \|Resource¹⁰⁺	Yes	-	Resource response data to set. When set to a string, the value indicates a string in HTML format. When set to a number, the value indicates a file handle, which is closed by the system <Web> component. When set to a Resource object, the value indicates the file resources in the rawfile directory of the application.

setResponseEncoding⁹⁺

setResponseEncoding(encoding: string)

Sets the encoding string of the resource response.

Parameters

Name	Type	Mandatory	Default Value	Description
encoding	string	Yes	-	Encoding string to set.

setResponseMimeType⁹⁺

setResponseMimeType(mimeType: string)

Sets the MIME type of the resource response.

Parameters

Name	Type	Mandatory	Default Value	Description
mimeType	string	Yes	-	MIME type to set.

setReasonMessage⁹⁺

setReasonMessage(reason: string)

Sets the status code description of the resource response.

Parameters

Name	Type	Mandatory	Default Value	Description
reason	string	Yes	-	Status code description to set.

setResponseHeader⁹⁺

setResponseHeader(header: Array<Header>)

Sets the resource response header.

Parameters

Name	Type	Mandatory	Default Value	Description
header	Array<Header>	Yes	-	Resource response header to set.

setResponseCode⁹⁺

setResponseCode(code: number)

Sets the status code of the resource response.

Parameters

Name	Type	Mandatory	Default Value	Description
code	number	Yes	-	Status code to set.

setResponseIsReady⁹⁺

setResponseIsReady(IsReady: boolean)

Sets whether the resource response data is ready.

Parameters

Name	Type	Mandatory	Default Value	Description
IsReady	boolean	Yes	true	Whether the resource response data is ready.

FileSelectorResult⁹⁺

Notifies the <Web> component of the file selection result. For the sample code, see onShowFileSelector.

handleFileList⁹⁺

handleFileList(fileList: Array<string>): void

Instructs the <Web> component to select a file.

Parameters

Name	Type	Mandatory	Default Value	Description
fileList	Array<string>	Yes	-	List of files to operate.

FileSelectorParam⁹⁺

Implements the FileSelectorParam object. For the sample code, see onShowFileSelector.

getTitle⁹⁺

getTitle(): string

Obtains the title of this file selector.

Return value

Type	Description
string	Title of the file selector.

getMode⁹⁺

getMode(): FileSelectorMode

Obtains the mode of the file selector.

Return value

Type	Description
FileSelectorMode	Mode of the file selector.

getAcceptType⁹⁺

getAcceptType(): Array<string>

Obtains the file filtering type.

Return value

Type	Description
Array<string>	File filtering type.

isCapture⁹⁺

isCapture(): boolean

Checks whether multimedia capabilities are invoked.

Return value

Type	Description
boolean	Whether multimedia capabilities are invoked.

HttpAuthHandler⁹⁺

Implements the HttpAuthHandler object. For the sample code, see onHttpAuthRequest.

cancel⁹⁺

cancel(): void

Cancels HTTP authentication as requested by the user.

confirm⁹⁺

confirm(userName: string, pwd: string): boolean

Performs HTTP authentication with the user name and password provided by the user.

Parameters

Name	Type	Mandatory	Default Value	Description
userName	string	Yes	-	HTTP authentication user name.
pwd	string	Yes	-	HTTP authentication password.

Return value

Type	Description
boolean	Returns true if the authentication is successful; returns false otherwise.

isHttpAuthInfoSaved⁹⁺

isHttpAuthInfoSaved(): boolean

Uses the account name and password cached on the server for authentication.

Return value

Type	Description
boolean	Returns true if the authentication is successful; returns false otherwise.

SslErrorHandler⁹⁺

Implements an SslErrorHandler object. For the sample code, see onSslErrorEventReceive Event.

handleCancel⁹⁺

handleCancel(): void

Cancels this request.

handleConfirm⁹⁺

handleConfirm(): void

Continues using the SSL certificate.

ClientAuthenticationHandler⁹⁺

Implements a ClientAuthenticationHandler object returned by the <Web> component. For the sample code, see onClientAuthenticationRequest.

confirm⁹⁺

confirm(priKeyFile : string, certChainFile : string): void

Uses the specified private key and client certificate chain.

Parameters

Name	Type	Mandatory	Description
priKeyFile	string	Yes	File that stores the private key, which is a directory including the file name.
certChainFile	string	Yes	File that stores the certificate chain, which is a directory including the file name.

confirm¹⁰⁺

confirm(authUri : string): void

Required permissions: ohos.permission.ACCESS_CERT_MANAGER

Instructs the <Web> component to use the specified credentials (obtained from the certificate management module).

Parameters

Name	Type	Mandatory	Description
authUri	string	Yes	Key value of the credentials.

cancel⁹⁺

cancel(): void

Cancels the client certificate request sent by the same host and port server. No additional event will be reported for requests from the same host and port server.

ignore⁹⁺

ignore(): void

Ignores this request.

PermissionRequest⁹⁺

Implements the PermissionRequest object. For the sample code, see onPermissionRequest.

deny⁹⁺

deny(): void

Denies the permission requested by the web page.

getOrigin⁹⁺

getOrigin(): string

Obtains the origin of this web page.

Return value

Type	Description
string	Origin of the web page that requests the permission.

getAccessibleResource⁹⁺

getAccessibleResource(): Array<string>

Obtains the list of accessible resources requested for the web page. For details about the resource types, see ProtectedResourceType.

Return value

Type	Description
Array<string>	List of accessible resources requested by the web page.

grant⁹⁺

grant(resources: Array<string>): void

Grants the permission for resources requested by the web page.

Parameters

Name	Type	Mandatory	Default Value	Description
resources	Array<string>	Yes	-	List of resources that can be requested by the web page with the permission to grant.

ScreenCaptureHandler¹⁰⁺

Implements the ScreenCaptureHandler object for accepting or rejecting a screen capture request. For the sample code, see onScreenCaptureRequest Event.

deny¹⁰⁺

deny(): void

Rejects this screen capture request.

getOrigin¹⁰⁺

getOrigin(): string

Obtains the origin of this web page.

Return value

Type	Description
string	Origin of the web page that requests the permission.

grant¹⁰⁺

grant(config: ScreenCaptureConfig): void

Required permissions: ohos.permission.MICROPHONE, ohos.permission.CAPTURE_SCREEN

Grants the screen capture permission.

Parameters

Name	Type	Mandatory	Default Value	Description
config	ScreenCaptureConfig	Yes	-	Screen capture configuration.

ContextMenuSourceType⁹⁺

Name	Description
None	Other event sources.
Mouse	Mouse event.
LongPress	Long press event.

ContextMenuMediaType⁹⁺

Name	Description
None	Non-special media or other media types.
Image	Image.

ContextMenuInputFieldType⁹⁺

Name	Description
None	Non-input field.
PlainText	Plain text field, such as the text, search, or email field.
Password	Password field.
Number	Numeric field.
Telephone	Phone number field.
Other	Field of any other type.

ContextMenuEditStateFlags⁹⁺

Name	Description
NONE	Editing is not allowed.
CAN_CUT	The cut operation is allowed.
CAN_COPY	The copy operation is allowed.
CAN_PASTE	The paste operation is allowed.
CAN_SELECT_ALL	The select all operation is allowed.

WebContextMenuParam⁹⁺

Implements a context menu, which is displayed after the user clicks the right mouse button or long presses a specific element, such as an image or a link. For the sample code, see onContextMenuShow.

x⁹⁺

x(): number

Obtains the X coordinate of the context menu.

Return value

Type	Description
number	If the display is normal, a non-negative integer is returned. Otherwise, -1 is returned.

y⁹⁺

y(): number

Obtains the Y coordinate of the context menu.

Return value

Type	Description
number	If the display is normal, a non-negative integer is returned. Otherwise, -1 is returned.

getLinkUrl⁹⁺

getLinkUrl(): string

Obtains the URL of the destination link.

Return value

Type	Description
string	If it is a link that is being long pressed, the URL that has passed the security check is returned.

getUnfilteredLinkUrl⁹⁺

getUnfilteredLinkUrl(): string

Obtains the URL of the destination link.

Return value

Type	Description
string	If it is a link that is being long pressed, the original URL is returned.

getSourceUrl⁹⁺

getSourceUrl(): string

Obtain the source URL.

Return value

Type	Description
string	If the selected element has the src attribute, the URL in the src is returned.

existsImageContents⁹⁺

existsImageContents(): boolean

Checks whether image content exists.

Return value

Type	Description
boolean	The value true means that there is image content in the element being long pressed, and false means the opposite.

getMediaType⁹⁺

getMediaType(): ContextMenuMediaType

Obtains the media type of this web page element.

Return value

Type	Description
ContextMenuMediaType	Media type of the web page element.

getSelectionText⁹⁺

getSelectionText(): string

Obtains the selected text.

Return value

Type	Description
string	Selected text for the context menu. If no text is selected, null is returned.

getSourceType⁹⁺

getSourceType(): ContextMenuSourceType

Obtains the event source of the context menu.

Return value

Type	Description
ContextMenuSourceType	Event source of the context menu.

getInputFieldType⁹⁺

getInputFieldType(): ContextMenuInputFieldType

Obtains the input field type of this web page element.

Return value

Type	Description
ContextMenuInputFieldType	Input field type.

isEditable⁹⁺

isEditable(): boolean

Checks whether this web page element is editable.

Return value

Type	Description
boolean	Returns true if the web page element is editable; returns false otherwise.

getEditStateFlags⁹⁺

getEditStateFlags(): number

Obtains the edit state flag of this web page element.

Return value

Type	Description
number	Edit state flag of the web page element. For details, see ContextMenuEditStateFlags.

WebContextMenuResult⁹⁺

Implements a WebContextMenuResult object. For the sample code, see onContextMenuShow.

closeContextMenu⁹⁺

closeContextMenu(): void

Closes this context menu. This API must be called when no operations in WebContextMenuResult are performed.

copyImage⁹⁺

copyImage(): void

Copies the image specified in WebContextMenuParam.

copy⁹⁺

copy(): void

Performs the copy operation related to this context menu.

paste⁹⁺

paste(): void

Performs the paste operation related to this context menu.

cut⁹⁺

cut(): void

Performs the cut operation related to this context menu.

selectAll⁹⁺

selectAll(): void

Performs the select all operation related to this context menu.

JsGeolocation

Implements the PermissionRequest object. For the sample code, see onGeolocationShow Event.

invoke

invoke(origin: string, allow: boolean, retain: boolean): void

Sets the geolocation permission status of a web page.

Parameters

Name	Type	Mandatory	Default Value	Description
origin	string	Yes	-	Index of the origin.
allow	boolean	Yes	-	Geolocation permission status.
retain	boolean	Yes	-	Whether the geolocation permission status can be saved to the system. You can manage the geolocation permissions saved to the system through GeolocationPermissions⁹⁺.

MessageLevel

Name	Description
Debug	Debug level.
Error	Error level.
Info	Information level.
Log	Log level.
Warn	Warning level.

RenderExitReason

Enumerates the reasons why the rendering process exits.

Name	Description
ProcessAbnormalTermination	The rendering process exits abnormally.
ProcessWasKilled	The rendering process receives a SIGKILL message or is manually terminated.
ProcessCrashed	The rendering process crashes due to segmentation or other errors.
ProcessOom	The program memory is running low.
ProcessExitUnknown	Other reason.

MixedMode

Name	Description
All	HTTP and HTTPS hybrid content can be loaded. This means that all insecure content can be loaded.
Compatible	HTTP and HTTPS hybrid content can be loaded in compatibility mode. This means that some insecure content may be loaded.
None	HTTP and HTTPS hybrid content cannot be loaded.

CacheMode

Name	Description
Default	The cache that has not expired is used to load the resources. If the resources do not exist in the cache, they will be obtained from the Internet.
None	The cache is used to load the resources. If the resources do not exist in the cache, they will be obtained from the Internet.
Online	The cache is not used to load the resources. All resources are obtained from the Internet.
Only	The cache alone is used to load the resources.

FileSelectorMode

Name	Description
FileOpenMode	Open and upload a file.
FileOpenMultipleMode	Open and upload multiple files.
FileOpenFolderMode	Open and upload a folder.
FileSaveMode	Save a file.

## HitTestType

Name	Description
EditText	Editable area.
Email	Email address.
HttpAnchor	Hyperlink whose src is http.
HttpAnchorImg	Image with a hyperlink, where src is http.
Img	HTML::img tag.
Map	Geographical address.
Phone	Phone number.
Unknown	Unknown content.

SslError⁹⁺

Enumerates the error codes returned by onSslErrorEventReceive API.

Name	Description
Invalid	Minor error.
HostMismatch	The host name does not match.
DateInvalid	The certificate has an invalid date.
Untrusted	The certificate issuer is not trusted.

ProtectedResourceType⁹⁺

Name	Description	Remarks
MidiSysex	MIDI SYSEX resource.	Currently, only permission events can be reported. MIDI devices are not yet supported.
VIDEO_CAPTURE¹⁰⁺	Video capture resource, such as a camera.
AUDIO_CAPTURE¹⁰⁺	Audio capture resource, such as a microphone.

WebDarkMode⁹⁺

Name	Description
Off	The web dark mode is disabled.
On	The web dark mode is enabled.
Auto	The web dark mode setting follows the system settings.

WebCaptureMode¹⁰⁺

Name	Description
HOME_SCREEN	Capture of the home screen.

WebMediaOptions¹⁰⁺

Describes the web-based media playback policy.

Name	Type	Readable	Writable	Mandatory	Description
resumeInterval	number	Yes	Yes	No	Validity period for automatically resuming a paused web audio, in seconds. The maximum validity period is 60 seconds. Due to the approximate value, the validity period may have a deviation of less than 1 second.
audioExclusive	boolean	Yes	Yes	No	Whether the audio of multiple <Web> instances in an application is exclusive.

ScreenCaptureConfig¹⁰⁺

Provides the web screen capture configuration.

Name	Type	Readable	Writable	Mandatory	Description
captureMode	WebCaptureMode	Yes	Yes	Yes	Web screen capture mode.

DataResubmissionHandler⁹⁺

Implements the DataResubmissionHandler object for resubmitting or canceling the web form data.

resend⁹⁺

resend(): void

Resends the web form data.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
         .onDataResubmitted((event) => {
          console.log('onDataResubmitted')
          event.handler.resend();
        })
      }
    }
  }

cancel⁹⁺

cancel(): void

Cancels the resending of web form data.

Example

  // xxx.ets
  import web_webview from '@ohos.web.webview'
  @Entry
  @Component
  struct WebComponent {
    controller: web_webview.WebviewController = new web_webview.WebviewController()
    build() {
      Column() {
        Web({ src:'www.example.com', controller: this.controller })
         .onDataResubmitted((event) => {
          console.log('onDataResubmitted')
          event.handler.cancel();
        })
      }
    }
  }

## WebController

Implements a WebController to control the behavior of the <Web> component. A WebController can control only one <Web> component, and the APIs in the WebController can be invoked only after it has been bound to the target <Web> component.

This API is deprecated since API version 9. You are advised to use WebviewController⁹⁺ instead.

Creating an Object

let webController: WebController = new WebController()

getCookieManager⁹⁺

getCookieManager(): WebCookie

Obtains the cookie management object of the <Web> component.

Return value

Type	Description
WebCookie	Cookie management object. For details, see WebCookie.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('getCookieManager')
          .onClick(() => {
            let cookieManager = this.controller.getCookieManager()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

requestFocus^(deprecated)

requestFocus()

Requests focus for this web page.

This API is deprecated since API version 9. You are advised to use requestFocus⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('requestFocus')
          .onClick(() => {
            this.controller.requestFocus()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

accessBackward^(deprecated)

accessBackward(): boolean

Checks whether going to the previous page can be performed on the current page.

This API is deprecated since API version 9. You are advised to use accessBackward⁹⁺ instead.

Return value

Type	Description
boolean	Returns true if going to the previous page can be performed on the current page; returns false otherwise.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('accessBackward')
          .onClick(() => {
            let result = this.controller.accessBackward()
            console.log('result:' + result)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

accessForward^(deprecated)

accessForward(): boolean

Checks whether going to the next page can be performed on the current page.

This API is deprecated since API version 9. You are advised to use accessForward⁹⁺ instead.

Return value

Type	Description
boolean	Returns true if going to the next page can be performed on the current page; returns false otherwise.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('accessForward')
          .onClick(() => {
            let result = this.controller.accessForward()
            console.log('result:' + result)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

accessStep^(deprecated)

accessStep(step: number): boolean

Performs a specific number of steps forward or backward from the current page.

This API is deprecated since API version 9. You are advised to use accessStep⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
step	number	Yes	-	Number of the steps to take. A positive number means to go forward, and a negative number means to go backward.

Return value

Type	Description
boolean	Whether going forward or backward from the current page is successful.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()
    @State steps: number = 2

    build() {
      Column() {
        Button('accessStep')
          .onClick(() => {
            let result = this.controller.accessStep(this.steps)
            console.log('result:' + result)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

backward^(deprecated)

backward(): void

Goes to the previous page based on the history stack. This API is generally used together with accessBackward.

This API is deprecated since API version 9. You are advised to use backward⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('backward')
          .onClick(() => {
            this.controller.backward()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

forward^(deprecated)

forward(): void

Goes to the next page based on the history stack. This API is generally used together with accessForward.

This API is deprecated since API version 9. You are advised to use forward⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('forward')
          .onClick(() => {
            this.controller.forward()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

deleteJavaScriptRegister^(deprecated)

deleteJavaScriptRegister(name: string)

Deletes a specific application JavaScript object that is registered with the window through registerJavaScriptProxy. The deletion takes effect immediately, with no need for invoking the refresh API.

This API is deprecated since API version 9. You are advised to use deleteJavaScriptRegister⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
name	string	Yes	-	Name of the registered JavaScript object, which can be used to invoke the corresponding object on the application side from the web side.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()
    @State name: string = 'Object'

    build() {
      Column() {
        Button('deleteJavaScriptRegister')
          .onClick(() => {
            this.controller.deleteJavaScriptRegister(this.name)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

getHitTest^(deprecated)

getHitTest(): HitTestType

Obtains the element type of the area being clicked.

This API is deprecated since API version 9. You are advised to use getHitTest⁹⁺ instead.

Return value

Type	Description
HitTestType	Element type of the area being clicked.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('getHitTest')
          .onClick(() => {
            let hitType = this.controller.getHitTest()
            console.log("hitType: " + hitType)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

loadData^(deprecated)

loadData(options: { data: string, mimeType: string, encoding: string, baseUrl?: string, historyUrl?: string })

Loads data. If baseUrl is empty, the specified character string will be loaded using the data protocol.

If baseUrl is set to a data URL, the encoded string will be loaded by the <Web> component using the data protocol.

If baseUrl is set to an HTTP or HTTPS URL, the encoded string will be processed by the <Web> component as a non-encoded string in a manner similar to loadUrl.

This API is deprecated since API version 9. You are advised to use loadData⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
data	string	Yes	-	Character string obtained after being Base64 or URL encoded.
mimeType	string	Yes	-	Media type (MIME).
encoding	string	Yes	-	Encoding type, which can be Base64 or URL.
baseUrl	string	No	-	URL (HTTP/HTTPS/data compliant), which is assigned by the <Web> component to window.origin.
historyUrl	string	No	-	Historical record URL. If this parameter is not empty, it can be managed in historical records to implement page going backward and forward. This parameter is invalid when baseUrl is left empty.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('loadData')
          .onClick(() => {
            this.controller.loadData({
              data: "<html><body bgcolor=\"white\">Source:<pre>source</pre></body></html>",
              mimeType: "text/html",
              encoding: "UTF-8"
            })
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

loadUrl^(deprecated)

loadUrl(options: { url: string|Resource, headers?: Array<Header> })

Loads a URL using the specified HTTP header.

The object injected through loadUrl is valid only in the current document. It will be invalid on a new page navigated to through loadUrl.

The object injected through registerJavaScriptProxy is still valid on a new page redirected through loadUrl.

This API is deprecated since API version 9. You are advised to use loadUrl⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
url	string	Yes	-	URL to load.
headers	Array<Header>	No	[]	Additional HTTP request header of the URL.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('loadUrl')
          .onClick(() => {
            this.controller.loadUrl({ url: 'www.example.com' })
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

onActive^(deprecated)

onActive(): void

Called when the <Web> component enters the active state.

This API is deprecated since API version 9. You are advised to use onActive⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('onActive')
          .onClick(() => {
            this.controller.onActive()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

onInactive^(deprecated)

onInactive(): void

Called when the <Web> component enters the inactive state.

This API is deprecated since API version 9. You are advised to use onInactive⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('onInactive')
          .onClick(() => {
            this.controller.onInactive()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

zoom^(deprecated)

zoom(factor: number): void

Sets a zoom factor for the current web page.

This API is deprecated since API version 9. You are advised to use zoom⁹⁺ instead.

Parameters

Name	Type	Mandatory	Description
factor	number	Yes	Zoom factor to set. A positive value indicates zoom-in, and a negative value indicates zoom-out.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()
    @State factor: number = 1

    build() {
      Column() {
        Button('zoom')
          .onClick(() => {
            this.controller.zoom(this.factor)
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

refresh^(deprecated)

refresh()

Called when the <Web> component refreshes the web page.

This API is deprecated since API version 9. You are advised to use refresh⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('refresh')
          .onClick(() => {
            this.controller.refresh()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

registerJavaScriptProxy^(deprecated)

registerJavaScriptProxy(options: { object: object, name: string, methodList: Array<string> })

Registers a JavaScript object with the window. APIs of this object can then be invoked in the window. You must invoke the refresh API for the registration to take effect.

This API is deprecated since API version 9. You are advised to use registerJavaScriptProxy⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
object	object	Yes	-	Application-side JavaScript object to be registered. Methods can be declared, but attributes cannot. The parameters and return value can only be of the string, number, or Boolean type.
name	string	Yes	-	Name of the object to be registered, which is the same as that invoked in the window. After registration, the window can use this name to access the JavaScript object at the application side.
methodList	Array<string>	Yes	-	Methods of the JavaScript object to be registered at the application side.

Example

  // xxx.ets
  class TestObj {
    constructor() {
    }

    test(): string {
      return "ArkUI Web Component"
    }

    toString(): void {
      console.log('Web Component toString')
    }
  }

  @Entry
  @Component
  struct Index {
    controller: WebController = new WebController()
    testObj = new TestObj();
    build() {
      Column() {
        Row() {
          Button('Register JavaScript To Window').onClick(() => {
            this.controller.registerJavaScriptProxy({
              object: this.testObj,
              name: "objName",
              methodList: ["test", "toString"],
            })
          })
        }
        Web({ src: $rawfile('index.html'), controller: this.controller })
          .javaScriptAccess(true)
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
      <meta charset="utf-8">
      <body>
          Hello world!
      </body>
      <script type="text/javascript">
      function htmlTest() {
          str = objName.test("test function")
          console.log('objName.test result:'+ str)
      }
  </script>
  </html>

runJavaScript^(deprecated)

runJavaScript(options: { script: string, callback?: (result: string) => void })

Executes a JavaScript script. This API uses an asynchronous callback to return the script execution result. runJavaScript can be invoked only after loadUrl is executed. For example, it can be invoked in onPageEnd.

This API is deprecated since API version 9. You are advised to use runJavaScript⁹⁺ instead.

Parameters

Name	Type	Mandatory	Default Value	Description
script	string	Yes	-	JavaScript script.
callback	(result: string) => void	No	-	Callback used to return the result. Returns null if the JavaScript script fails to be executed or no value is returned.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()
    @State webResult: string = ''
    build() {
      Column() {
        Text(this.webResult).fontSize(20)
        Web({ src: $rawfile('index.html'), controller: this.controller })
        .javaScriptAccess(true)
        .onPageEnd(e => {
          this.controller.runJavaScript({
            script: 'test()',
            callback: (result: string)=> {
              this.webResult = result
              console.info(`The test() return value is: ${result}`)
            }})
          if (e) {
            console.info('url: ', e.url)
          }
        })
      }
    }
  }

HTML file to be loaded:

  <!-- index.html -->
  <!DOCTYPE html>
  <html>
    <meta charset="utf-8">
    <body>
        Hello world!
    </body>
    <script type="text/javascript">
    function test() {
        console.log('Ark WebComponent')
        return "This value is from index.html"
    }
    </script>
  </html>

stop^(deprecated)

stop()

Stops page loading.

This API is deprecated since API version 9. You are advised to use stop⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('stop')
          .onClick(() => {
            this.controller.stop()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

clearHistory^(deprecated)

clearHistory(): void

Clears the browsing history.

This API is deprecated since API version 9. You are advised to use clearHistory⁹⁺ instead.

Example

  // xxx.ets
  @Entry
  @Component
  struct WebComponent {
    controller: WebController = new WebController()

    build() {
      Column() {
        Button('clearHistory')
          .onClick(() => {
            this.controller.clearHistory()
          })
        Web({ src: 'www.example.com', controller: this.controller })
      }
    }
  }

WebCookie^(deprecated)

Manages behavior of cookies in <Web> components. All <Web> components in an application share a WebCookie. You can use the getCookieManager API in controller to obtain the WebCookie for subsequent cookie management.

setCookie^(deprecated)

setCookie(): boolean

Sets the cookie. This API returns the result synchronously. Returns true if the operation is successful; returns false otherwise.

This API is deprecated since API version 9. You are advised to use setCookie⁹⁺ instead.

Return value

Type	Description
boolean	Returns true if the operation is successful; returns false otherwise.

saveCookie^(deprecated)

saveCookie(): boolean

Saves the cookies in the memory to the drive. This API returns the result synchronously.

This API is deprecated since API version 9. You are advised to use saveCookieAsync⁹⁺ instead.

Return value

Type	Description
boolean	Operation result.

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harmony 鸿蒙Web

Web

Required Permissions

Child Components

APIs

Attributes

domStorageAccess

fileAccess

imageAccess

javaScriptProxy

javaScriptAccess

mixedMode

onlineImageAccess

zoomAccess

overviewModeAccess

databaseAccess

geolocationAccess

mediaPlayGestureAccess

multiWindowAccess9+

horizontalScrollBarAccess9+

verticalScrollBarAccess9+

password(deprecated)

cacheMode

textZoomAtio(deprecated)

textZoomRatio9+

initialScale9+

userAgent(deprecated)

blockNetwork9+

defaultFixedFontSize9+

defaultFontSize9+

minFontSize9+

minLogicalFontSize9+

webFixedFont9+

webSansSerifFont9+

webSerifFont9+

webStandardFont9+

webFantasyFont9+

webCursiveFont9+

darkMode9+

forceDarkAccess9+

tableData(deprecated)

wideViewModeAccess(deprecated)

pinchSmooth9+

allowWindowOpenMethod10+

mediaOptions10+

Events

onAlert

onBeforeUnload

onConfirm

onPrompt9+

onConsole

onDownloadStart

onErrorReceive

onHttpErrorReceive

onPageBegin

onPageEnd

onProgressChange

onTitleReceive

onRefreshAccessedHistory

onSslErrorReceive(deprecated)

onFileSelectorShow(deprecated)

onRenderExited9+

onShowFileSelector9+

onResourceLoad9+

onScaleChange9+

onUrlLoadIntercept(deprecated)

onInterceptRequest9+

onHttpAuthRequest9+

onSslErrorEventReceive9+

onClientAuthenticationRequest9+

onContextMenuShow9+

onScroll9+

onGeolocationShow

onGeolocationHide

onFullScreenEnter9+

onFullScreenExit9+

onWindowNew9+

onWindowExit9+

onSearchResultReceive9+

onDataResubmitted9+

multiWindowAccess⁹⁺

horizontalScrollBarAccess⁹⁺

verticalScrollBarAccess⁹⁺

password^(deprecated)

textZoomAtio^(deprecated)

textZoomRatio⁹⁺

initialScale⁹⁺

userAgent^(deprecated)

blockNetwork⁹⁺

defaultFixedFontSize⁹⁺

defaultFontSize⁹⁺

minFontSize⁹⁺

minLogicalFontSize⁹⁺

webFixedFont⁹⁺

webSansSerifFont⁹⁺

webSerifFont⁹⁺

webStandardFont⁹⁺

webFantasyFont⁹⁺

webCursiveFont⁹⁺

darkMode⁹⁺

forceDarkAccess⁹⁺

tableData^(deprecated)

wideViewModeAccess^(deprecated)

pinchSmooth⁹⁺

allowWindowOpenMethod¹⁰⁺

mediaOptions¹⁰⁺

onPrompt⁹⁺

onSslErrorReceive^(deprecated)

onFileSelectorShow^(deprecated)

onRenderExited⁹⁺

onShowFileSelector⁹⁺

onResourceLoad⁹⁺

onScaleChange⁹⁺

onUrlLoadIntercept^(deprecated)

onInterceptRequest⁹⁺

onHttpAuthRequest⁹⁺

onSslErrorEventReceive⁹⁺

onClientAuthenticationRequest⁹⁺

onContextMenuShow⁹⁺

onScroll⁹⁺

onFullScreenEnter⁹⁺

onFullScreenExit⁹⁺

onWindowNew⁹⁺

onWindowExit⁹⁺

onSearchResultReceive⁹⁺

onDataResubmitted⁹⁺

onPageVisible⁹⁺

onInterceptKeyEvent⁹⁺

onTouchIconUrlReceived⁹⁺

onFaviconReceived⁹⁺

onAudioStateChanged¹⁰⁺

onFirstContentfulPaint¹⁰⁺

onLoadIntercept¹⁰⁺

onScreenCaptureRequest¹⁰⁺

onOverScroll¹⁰⁺

onControllerAttached¹⁰⁺

handlePromptConfirm⁹⁺

FullScreenExitHandler⁹⁺

exitFullScreen⁹⁺

ControllerHandler⁹⁺

setWebController⁹⁺

getRequestMethod⁹⁺

setResponseData⁹⁺

setResponseEncoding⁹⁺

setResponseMimeType⁹⁺

setReasonMessage⁹⁺

setResponseHeader⁹⁺

setResponseCode⁹⁺

setResponseIsReady⁹⁺

FileSelectorResult⁹⁺

handleFileList⁹⁺

FileSelectorParam⁹⁺

getTitle⁹⁺

getMode⁹⁺

getAcceptType⁹⁺

isCapture⁹⁺

HttpAuthHandler⁹⁺

cancel⁹⁺

confirm⁹⁺

isHttpAuthInfoSaved⁹⁺