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The QWebFrame class represents a frame in a web page. More...
#include <QWebFrame>
Inherits QObject.
This class was introduced in Qt 4.4.
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The QWebFrame class represents a frame in a web page.
QWebFrame represents a frame inside a web page. Each QWebPage object contains at least one frame, the main frame, obtained using QWebPage::mainFrame(). Additional frames will be created for HTML <frame> or <iframe> elements.
A frame can be loaded using load() or setUrl(). Alternatively, if you have the HTML content readily available, you can use setHtml() instead.
The page() function returns a pointer to the web page object. See Elements of QWebView for an explanation of how web frames are related to a web page and web view.
The title of an HTML frame can be accessed with the title() property. Additionally, a frame may also specify an icon, which can be accessed using the icon() property. If the title or the icon changes, the corresponding titleChanged() and iconChanged() signals will be emitted. The zoomFactor() property can be used to change the overall size of the content displayed in the frame.
QWebFrame objects are created and controlled by the web page. You can connect to the web page's frameCreated() signal to be notified when a new frame is created.
The hitTestContent() function can be used to programmatically examine the contents of a frame.
A QWebFrame can be printed onto a QPrinter using the print() function. This function is marked as a slot and can be conveniently connected to QPrintPreviewDialog's paintRequested() signal.
See also QWebPage.
This property holds the size of the contents in this frame.
Access functions:
This property holds the icon associated with this frame.
Access functions:
See also iconChanged() and QWebSettings::iconForUrl().
This property holds the position the frame is currently scrolled to.
This property was introduced in Qt 4.5.
Access functions:
This property holds the title of the frame as defined by the HTML <title> element.
Access functions:
See also titleChanged().
This property holds the url of the frame currently viewed.
Access functions:
See also urlChanged().
This property holds the zoom factor for the frame.
This property was introduced in Qt 4.5.
Access functions:
Make object available under name from within the frame's JavaScript context. The object will be inserted as a child of the frame's window object.
Qt properties will be exposed as JavaScript properties and slots as JavaScript methods.
If you want to ensure that your QObjects remain accessible after loading a new URL, you should add them in a slot connected to the javaScriptWindowObjectCleared() signal.
The object will never be explicitly deleted by QtWebKit.
This is an overloaded member function, provided for convenience.
Make object available under name from within the frame's JavaScript context. The object will be inserted as a child of the frame's window object.
Qt properties will be exposed as JavaScript properties and slots as JavaScript methods.
If you want to ensure that your QObjects remain accessible after loading a new URL, you should add them in a slot connected to the javaScriptWindowObjectCleared() signal.
The ownership of object is specified using own.
Returns a list of all frames that are direct children of this frame.
See also parentFrame().
Evaluates the JavaScript defined by scriptSource using this frame as context and returns the result of the last executed statement.
See also addToJavaScriptWindowObject() and javaScriptWindowObjectCleared().
The name of this frame as defined by the parent frame.
Return the geometry of the frame relative to it's parent frame.
Performs a hit test on the frame contents at the given position pos and returns the hit test result.
This signal is emitted when the icon ("favicon") associated with the frame has been loaded.
See also icon().
This signal is emitted when the frame is laid out the first time. This is the first time you will see contents displayed on the frame.
Note: A frame can be laid out multiple times.
This signal is emitted whenever the global window object of the JavaScript environment is cleared, e.g., before starting a new load.
If you intend to add QObjects to a QWebFrame using addToJavaScriptWindowObject(), you should add them in a slot connected to this signal. This ensures that your objects remain accessible when loading new URLs.
Loads url into this frame.
Note: The view remains the same until enough data has arrived to display the new url.
See also setUrl(), setHtml(), and setContent().
Loads a network request, req, into this frame.
Note: The view remains the same until enough data has arrived to display the new url.
Returns the meta data in this frame as a QMultiMap
The meta data consists of the name and content attributes of the of the <meta> tags in the HTML document.
For example:
<html>
<head>
<meta name="description" content="This document is a tutorial about Qt development">
<meta name="keywords" content="Qt, WebKit, Programming">
</head>
...
</html>
Given the above HTML code the metaData() function will return a map with two entries:
| Key | Value |
|---|---|
| "description" | "This document is a tutorial about Qt development" |
| "keywords" | "Qt, WebKit, Programming" |
This function returns a multi map to support multiple meta tags with the same attribute name.
This function was introduced in Qt 4.5.
The web page that contains this frame.
Returns the parent frame of this frame, or 0 if the frame is the web pages main frame.
This is equivalent to qobject_cast<QWebFrame*>(frame->parent()).
See also childFrames().
Returns the position of the frame relative to it's parent frame.
Prints the frame to the given printer.
See also render().
Render the frame into painter clipping to clip.
See also print().
Render the frame into painter.
Returns a dump of the rendering tree. This is mainly useful for debugging html.
Scrolls the frame dx pixels to the right and dy pixels downward. Both dx and dy may be negative.
This function was introduced in Qt 4.5.
See also QWebFrame::scrollPosition.
Returns the maximum value for the scrollbar with orientation orientation, or 0 if no scrollbar is found for orientation.
See also scrollBarMinimum().
Returns the minimum value for the scrollbar with orientation orientation.
The minimum value is always 0.
See also scrollBarMaximum().
Returns the scrollbar policy for the scrollbar defined by orientation.
See also setScrollBarPolicy().
Returns the current value for the scrollbar with orientation orientation, or 0 if no scrollbar is found for orientation.
See also setScrollBarValue(), scrollBarMinimum(), and scrollBarMaximum().
Returns the frame's security origin.
This function was introduced in Qt 4.5.
Sets the content of this frame to the specified content data. If the mimeType argument is empty it is currently assumed that the content is HTML but in future versions we may introduce auto-detection.
External objects referenced in the content are located relative to baseUrl.
The data is loaded immediately; external objects are loaded asynchronously.
See also toHtml().
Sets the content of this frame to html. baseUrl is optional and used to resolve relative URLs in the document, such as referenced images or stylesheets.
The html is loaded immediately; external objects are loaded asynchronously.
When using this method WebKit assumes that external resources such as JavaScript programs or style sheets are encoded in UTF-8 unless otherwise specified. For example, the encoding of an external script can be specified through the charset attribute of the HTML script tag. It is also possible for the encoding to be specified by web server.
See also toHtml().
Sets the scrollbar policy for the scrollbar defined by orientation to policy.
See also scrollBarPolicy().
Sets the current value for the scrollbar with orientation orientation.
The scrollbar forces the value to be within the legal range: minimum <= value <= maximum.
Changing the value also updates the thumb position.
See also scrollBarValue(), scrollBarMinimum(), and scrollBarMaximum().
Sets the value of the multiplier used to scale the text in a Web frame to the factor specified.
See also textSizeMultiplier().
Returns the value of the multiplier used to scale the text in a Web frame.
See also setTextSizeMultiplier().
This signal is emitted whenever the title of the frame changes. The title string specifies the new title.
See also title().
Returns the frame's content, converted to HTML.
See also setHtml() and toPlainText().
Returns the content of this frame converted to plain text.
See also toHtml().
This signal is emitted with the URL of the frame when the frame's title is received. The new URL is specified by url.
See also url().
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