JavaScriptDialogRequest QML Type

A request for showing an alert, a confirmation, or a prompt dialog from within JavaScript to the user. 更多...

import 语句：	import QtWebEngine
Since:	QtWebEngine 1.4

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特性

accepted : bool
defaultText : string
message : string
securityOrigin : url
title : string
type : enumeration

方法

void dialogAccept (string text )
void dialogAccept ()
void dialogReject ()

详细描述

A JavaScriptDialogRequest is passed as an argument of the WebEngineView::javaScriptDialogRequested signal. The request is emitted if JavaScript on the page calls HTML5's Simple Dialogs API, or in response to HTML5's BeforeUnloadEvent . The type of a particular dialog can be checked with the type 特性。

accepted property of the request indicates whether the request is handled by the user code or the default dialog should be displayed. If you set the accepted 特性到 true , make sure to call either dialogAccept() or dialogReject() afterwards. The JavaScript call causing the request will be blocked until then.

The following code uses a custom dialog to handle the request:

WebEngineView {
    // ...
    onJavaScriptDialogRequested: function(request) {
        request.accepted = true;
        myDialog.request = request // keep the reference to the request
        myDialog.accept.connect(request.dialogAccept);
        myDialog.reject.connect(request.dialogReject);
        myDialog.visible = true;
    }
    // ...
}

特性文档编制

accepted : bool

Indicates whether the JavaScript dialog request has been accepted by the signal handler.

If the property is false after any signal handlers for WebEngineView::javaScriptDialogRequested have been executed, a default dialog will be shown. To prevent this, set request.accepted to true .

默认为 false .

[read-only] defaultText : string

The default prompt text, if the requested dialog is a prompt.

[read-only] message : string

The message to be shown to the user.

[read-only] securityOrigin : url

The URL of the security origin.

[read-only] title : string

A default title for the dialog.

[read-only] type : enumeration

Returns the type of the requested dialog box. For more information, see HTML5's Simple Dialogs .

常量	描述
`JavaScriptDialogRequest.DialogTypeAlert`	A JavaScript alert dialog.
`JavaScriptDialogRequest.DialogTypeConfirm`	A JavaScript confirmation dialog.
`JavaScriptDialogRequest.DialogTypePrompt`	A JavaScript prompt dialog.
`JavaScriptDialogRequest.DialogTypeBeforeUnload`	The users should be asked if they want to leave the page.

方法文档编制

void dialogAccept ( string text )

This function notifies the engine that the user accepted the dialog, providing the text in case of a prompt message box.

void dialogAccept ()

This function notifies the engine that the user accepted the dialog.

void dialogReject ()

This function notifies the engine that the user rejected the dialog.