| domStorageAccess | boolean | false | Whether to enable the DOM Storage API permission. By default, the permission is disabled. |
| fileAccess | boolean | true | Whether to enable in-application rawfile access through [$rawfile(filepath/filename)](../../ui/ts-application-resource-access.md). By default, this feature is enabled. |
| imageAccess | boolean | true | Whether to enable automatic image loading. By default, this feature is enabled. |
| javaScriptProxy | { <br> object: object, <br> name: string, <br> methodList: Array\<string\>, <br> controller: WebController <br>} | - | JavaScript object to be injected into the window. Methods of this object can be invoked in the window. The parameters in this attribute cannot be updated.<br>**object** indicates the object to be registered. Methods can be declared, but not attributes. The parameters and return value can only be of the string, number, or Boolean type.<br>**name** indicates the name of the object to be registered, which is the same as that invoked in the window. After registration, the window can use this name to access the JavaScript object at the application side.<br>**methodList** indicates the methods of the JavaScript object to be registered at the application side.<br>**controller** indicates the controller. |
| javaScriptAccess | boolean | true | Whether JavaScript scripts can be executed. By default, JavaScript scripts can be executed. |
| mixedMode | MixedMode | MixedMode.None | Whether to enable loading of HTTP and HTTPS hybrid content can be loaded. By default, this feature is disabled. |
| onlineImageAccess | boolean | true | Whether to enable access to online images through HTTP and HTTPS. By default, this feature is enabled. |
| zoomAccess | boolean | true | Whether to enable zoom gestures. By default, zoom gestures are enabled. |
| domStorageAccess | boolean | false | Whether to enable the DOM Storage API permission. By default, the permission is disabled.|
| fileAccess | boolean | false | Whether to enable in-application rawfile access through [$rawfile(filepath/filename)](../../ui/ts-application-resource-access.md). By default, this feature is enabled. |
| fileFromUrlAccess | boolean | true | Whether to allow JavaScript scripts on web pages to access the content in [$rawfile(filepath/filename)](../../ui/ts-application-resource-access.md). By default, this feature is disabled. |
| imageAccess | boolean | true | Whether to enable automatic image loading. By default, this feature is enabled. |
| javaScriptProxy | { <br> object: object, <br> name: string, <br> methodList: Array\<string\>, <br> controller: WebController <br>} | - | JavaScript object to be injected into the window. Methods of this object can be invoked in the window. The parameters in this attribute cannot be updated.<br>**object** indicates the object to be registered. Methods can be declared, but not attributes. The parameters and return value can only be of the string, number, or Boolean type.<br>**name** indicates the 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.<br>**methodList** indicates the methods of the JavaScript object to be registered at the application side.<br>**controller** indicates the controller.|
| javaScriptAccess | boolean | true | Whether JavaScript scripts can be executed. By default, JavaScript scripts can be executed. |
| mixedMode | [MixedMode](#mixedmode) | MixedMode.None | Whether to enable loading of HTTP and HTTPS hybrid content can be loaded. By default, this feature is disabled.|
| onlineImageAccess | boolean | true | Whether to enable access to online images through HTTP and HTTPS. By default, this feature is enabled.|
| zoomAccess | boolean | true | Whether to enable zoom gestures. By default, zoom gestures are enabled. |
| overviewModeAccess | boolean | true | Whether to use the overview mode to load web pages. By default, this mode is used. |
| databaseAccess | boolean | false | Whether to enable database access. By default, this feature is disabled. |
| textZoomAtio | number | 100 | Text zoom ratio of the page. The default value is **100**, which indicates 100%. |
| userAgent | string | - | User agent. |
> **NOTE**<br>
>
> Only the following universal attributes are supported: [width](ts-universal-attributes-size.md#Attributes), [height](ts-universal-attributes-size.md#Attributes), [padding](ts-universal-attributes-size.md#Attributes), [margin](ts-universal-attributes-size.md#Attributes), and [border](ts-universal-attributes-border.md#Attributes).
| onAlert(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when **alert()** is invoked to display an alert dialog box on the web page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can invoke the system dialog box capability (allows only the confirm operation) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: notifies the **\<Web>** component of the user's operation.</p> |
| onBeforeUnload(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when the current page is about to exit after the user refreshes or closes the page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can invoke the system dialog box capability (allows the confirm and cancel operations) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: notifies the **\<Web>** component of the user's operation.</p> |
| onConfirm(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when **confirm()** is invoked to display a confirmation dialog box on the web page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can invoke the system dialog box capability (allows the confirm and cancel operations) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: notifies the **\<Web>** component of the user's operation.</p> |
| onAlert(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when **alert()** is invoked to display an alert dialog box on the web page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can use the system dialog box (allows only the confirm operation) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: the user's operation.</p> |
| onBeforeUnload(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when the current page is about to exit after the user refreshes or closes the page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can use the system dialog box (allows the confirm and cancel operations) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: the user's operation.</p> |
| onConfirm(callback: (event?: { url: string; message: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when **confirm()** is invoked by the web page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can use the system dialog box (allows the confirm and cancel operations) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**JsResult**: the user's operation.</p> |
| onPrompt<sup>9+</sup>(callback: (event?: { url: string; message: string; value: string; result: [JsResult](#jsresult) }) => boolean) | <p>Triggered when **prompt()** is invoked by the web page.<br>If the callback returns **false**, the default dialog box is displayed. If the callback returns **true**, a system application can use the system dialog box (allows the confirm and cancel operations) and invoke the **JsResult** API to notify the **\<Web>** component of the user's operation.<br>**url**: URL of the web page where the dialog box is displayed.<br>**message**: information displayed in the dialog box.<br>**value**: default value in the dialog box.<br>**JsResult**: the user's operation and dialog box content.</p> |
| onConsole(callback: (event?: { message: [ConsoleMessage](#consolemessage) }) => boolean) | <p>Triggered when the host application is notified of a JavaScript console message.<br>**message**: console message.</p> |
| onDownloadStart(callback: (event?: { url: string, userAgent: string, contentDisposition: string, mimetype: string, contentLength: number }) => void) | <p>Triggered when a download task starts on the web page.<br>**url**: URL for the download task.<br>**userAgent**: name of the user agent (UA) for the download task.<br>**contentDisposition**: Content-Disposition response header returned by the server, which may be empty.<br>**mimetype**: content media type (MIME) returned by the server.<br>**contentLength**: length of the file returned by the server.</p> |
| onErrorReceive(callback: (event?: { request: [WebResourceRequest](#webresourceerror), error: [WebResourceError](#webresourceerror) }) => void) | <p>Triggered when an error occurs during web page loading.<br>For better results, simplify the implementation logic in the callback.<br>**request**: encapsulation of a web page request.<br>**error**: encapsulation of a web page resource loading error.</p> |
| onHttpErrorReceive(callback: (event?: { request: [WebResourceRequest](#webresourceerror), response: [WebResourceResponse](#webresourceresponse) }) => void) | <p>Triggered when an HTTP error (the response code is greater than or equal to 400) occurs during web page resource loading.<br>**request**: encapsulation of a web page request.<br>**response**: encapsulation of a web page response.</p>|
| onHttpErrorReceive(callback: (event?: { request: [WebResourceRequest](#webresourceerror), response: [WebResourceResponse](#webresourceresponse) }) => void) | <p>Triggered when an HTTP error (the response code is greater than or equal to 400) occurs during web page resource loading.<br>**request**: encapsulation of a web page request.<br>**response**: encapsulation of a web page response.</p>|
| onPageBegin(callback: (event?: { url: string }) => void) | <p>Triggered when the web page starts to be loaded. This API is triggered only for the main frame content, and not for the iframe or frameset content.<br>**url**: URL of the page.</p> |
| onPageEnd(callback: (event?: { url: string }) => void) | <p>Triggered when the web page loading is complete. This API is triggered only for the main frame content.<br>**url**: URL of the page.</p> |
| onProgressChange(callback: (event?: { newProgress: number }) => void) | <p>Triggered when the web page loading progress changes.<br>**newProgress**: new loading progress. The value is an integer ranging from 0 to 100.</p> |
| onTitleReceive(callback: (event?: { title: string }) => void) | <p>Triggered when the document title of the web page is changed.<br>**title**: document title.</p> |
| onRefreshAccessedHistory(callback: (event?: { url: string, isRefreshed: boolean }) => void) | <p>Triggered when loading of the web page is complete. This callback function is used by an application to update the historical link it accessed.<br>**url**: URL to be accessed.<br>**isRefreshed**: whether the page is reloaded. The value **true** means that the page is reloaded, and **false** means that the page is newly loaded.</p> |
| onRenderExited(callback: (event?: { renderExitReason: [RenderExitReason](#renderexitreason) }) => void) | <p>Triggered when the rendering process exits abnormally.<br>**renderExitReason**: cause for the abnormal exit of the rendering process.</p> |
| onShowFileSelector(callback: (event?: { result: [FileSelectorResult](#fileselectorresult), fileSelector: [FileSelectorParam](#fileselectorparam) }) => void) | <p>Triggered to process an HTML form whose input type is **file**, in response to the tapping of the **Select File** button.<br>**result**: file selection result to be sent to the web component.<br>**fileSelector**: information about the file selector.</p> |
| onUrlLoadIntercept(callback: (event?: { data:string \|[WebResourceRequest](#webresourcerequest) }) => boolean) | <p>Triggered before the **\<Web>** component loads the URL to determine whether to block the access. The callback returns **true** if the access is blocked, and **false** otherwise.<br>**data**: URL information.</p> |
| 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. |
### FileSelectorResult
Notifies the **\<Web>** component of the file selection result.
| 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. |
| 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.|
### forward
...
...
@@ -220,16 +281,15 @@ Obtains the element type of the area being clicked.
| 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. |
| 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.|
### loadUrl
...
...
@@ -259,20 +319,20 @@ 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**.
Objects injected through **registerJavaScriptProxy** are still valid on a new page navigated to through **loadUrl**.
The object injected through **registerJavaScriptProxy** is still valid on a new page navigated to through **loadUrl**.
- options
| Name | Type | Mandatory | Default Value | Description |
| object | object | Yes | - | Application-side JavaScript object to be registered. Methods can be declared, but not attributes. 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. |
| Name | Type | Mandatory | Default Value | Description |
| object | object | Yes | - | Application-side JavaScript object to be registered. Methods can be declared, but not attributes. 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. |
Asynchronously executes a JavaScript script. This API uses a callback to return the script execution result.**runJavaScript** can be invoked only after **loadUrl** is executed. For example, it can be executed in **onPageEnd**.
Asynchronously executes a JavaScript script. This API uses a callback to return the script execution result.**runJavaScript** can be invoked only after **loadUrl** is executed. For example, it can be executed in **onPageEnd**.
- options
| Name | Type | Mandatory | Default Value | Description |
| callback | (result: string) => void | No | - | Callback used to return the result. The value **null** indicates that the JavaScript script fails to be executed or no value is returned. |
| Name | Type | Mandatory | Default Value | Description |
| 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.|
### stop
...
...
@@ -319,9 +379,50 @@ stop(): void
Stops page loading.
### clearHistory
clearHistory(): void
Clears the browsing history.
### getCookieManager
getCookieManager(): WebCookie
Obtains the cookie management object of the **\<Web>** component.
| WebCookie | Cookie management object. For details, see [WebCookie](#webcookie).|
## WebCookie
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
setCookie(url: string, value: string): boolean
Sets the cookie. This API is synchronous.
- Parameters
| Name | Type | Mandatory | Default Value | Description |
