298 lines
19 KiB
HTML
298 lines
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HTML
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<h1 class="title">QWebPluginFactory Class Reference</h1>
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<!-- $$$QWebPluginFactory-brief -->
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<p>The QWebPluginFactory class is used to embed custom data types in web pages. <a href="#details">More...</a></p>
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<!-- @@@QWebPluginFactory -->
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<pre class="cpp"> <span class="preprocessor">#include <QWebPluginFactory></span></pre><p><b>Inherits: </b><a href="qobject.html">QObject</a>.</p>
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<p>This class was introduced in Qt 4.4.</p>
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<a name="public-types"></a>
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<h2>Public Types</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> class </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory-mimetype.html">MimeType</a></b></td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> class </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory-plugin.html">Plugin</a></b></td></tr>
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<a name="public-functions"></a>
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<h2>Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory.html#QWebPluginFactory">QWebPluginFactory</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory.html#dtor.QWebPluginFactory">~QWebPluginFactory</a></b> ()</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual QObject * </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory.html#create">create</a></b> ( const QString & <i>mimeType</i>, const QUrl & <i>url</i>, const QStringList & <i>argumentNames</i>, const QStringList & <i>argumentValues</i> ) const = 0</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual QList<Plugin> </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory.html#plugins">plugins</a></b> () const = 0</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qwebpluginfactory.html#refreshPlugins">refreshPlugins</a></b> ()</td></tr>
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</table>
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<ul>
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<li class="fn">29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
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</ul>
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<h3>Additional Inherited Members</h3>
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<ul>
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<li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li>
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<li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
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<li class="fn">1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
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<li class="fn">7 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
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<li class="fn">8 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
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</ul>
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<a name="details"></a>
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<!-- $$$QWebPluginFactory-description -->
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<div class="descr">
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<h2>Detailed Description</h2>
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<p>The QWebPluginFactory class is used to embed custom data types in web pages.</p>
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<p>The HTML <tt><object></tt> tag is used to embed arbitrary content into a web page, for example:</p>
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<pre class="cpp"> <span class="operator"><</span>object type<span class="operator">=</span><span class="string">"application/x-pdf"</span> data<span class="operator">=</span><span class="string">"http://qt.nokia.com/document.pdf"</span> width<span class="operator">=</span><span class="string">"500"</span> height<span class="operator">=</span><span class="string">"400"</span><span class="operator">></span><span class="operator"><</span><span class="operator">/</span>object<span class="operator">></span></pre>
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<p>QtWebkit will natively handle the most basic data types like <tt>text/html</tt> and <tt>image/jpeg</tt>, but for any advanced or custom data types you will need to provide a handler yourself.</p>
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<p>QWebPluginFactory is a factory for creating plugins for <a href="qwebpage.html">QWebPage</a>, where each plugin provides support for one or more data types. A plugin factory can be installed on a <a href="qwebpage.html">QWebPage</a> using <a href="qwebpage.html#setPluginFactory">QWebPage::setPluginFactory</a>().</p>
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<p><b>Note:</b> The plugin factory is only used if plugins are enabled through <a href="qwebsettings.html">QWebSettings</a>.</p>
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<p>You provide a QWebPluginFactory by implementing the <a href="qwebpluginfactory.html#plugins">plugins</a>() and the <a href="qwebpluginfactory.html#create">create</a>() methods. For <a href="qwebpluginfactory.html#plugins">plugins</a>() it is necessary to describe the plugins the factory can create, including a description and the supported MIME types. The MIME types each plugin can handle should match the ones specified in in the HTML <tt><object></tt> tag of your content.</p>
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<p>The <a href="qwebpluginfactory.html#create">create</a>() method is called if the requested MIME type is supported. The implementation has to return a new instance of the plugin requested for the given MIME type and the specified URL.</p>
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<p>The plugins themselves are subclasses of <a href="qobject.html">QObject</a>, but currently only plugins based on either <a href="qwidget.html">QWidget</a> or <a href="qgraphicswidget.html">QGraphicsWidget</a> are supported.</p>
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</div>
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<!-- @@@QWebPluginFactory -->
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<div class="func">
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<h2>Member Function Documentation</h2>
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<!-- $$$QWebPluginFactory[overload1]$$$QWebPluginFactoryQObject* -->
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<h3 class="fn"><a name="QWebPluginFactory"></a>QWebPluginFactory::<span class="name">QWebPluginFactory</span> ( <span class="type"><a href="qobject.html">QObject</a></span> * <i>parent</i> = 0 )</h3>
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<p>Constructs a <a href="qwebpluginfactory.html">QWebPluginFactory</a> with parent <i>parent</i>.</p>
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<!-- @@@QWebPluginFactory -->
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<!-- $$$~QWebPluginFactory[overload1]$$$~QWebPluginFactory -->
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<h3 class="fn"><a name="dtor.QWebPluginFactory"></a>QWebPluginFactory::<span class="name">~QWebPluginFactory</span> ()<tt> [virtual]</tt></h3>
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<p>Destructor.</p>
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<!-- @@@~QWebPluginFactory -->
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<!-- $$$create[overload1]$$$createconstQString&constQUrl&constQStringList&constQStringList& -->
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<h3 class="fn"><a name="create"></a><span class="type"><a href="qobject.html">QObject</a></span> * QWebPluginFactory::<span class="name">create</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>mimeType</i>, const <span class="type"><a href="qurl.html">QUrl</a></span> & <i>url</i>, const <span class="type"><a href="qstringlist.html">QStringList</a></span> & <i>argumentNames</i>, const <span class="type"><a href="qstringlist.html">QStringList</a></span> & <i>argumentValues</i> ) const<tt> [pure virtual]</tt></h3>
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<p>Implemented in subclasses to create a new plugin that can display content of the MIME type given by <i>mimeType</i>. The URL of the content is provided in <i>url</i>. The returned object should be a <a href="qwidget.html">QWidget</a>.</p>
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<p>The HTML object element can provide parameters through the <tt><param></tt> tag. The name and the value attributes of these tags are specified by the <i>argumentNames</i> and <i>argumentValues</i> string lists.</p>
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<p>For example:</p>
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<pre class="cpp"> <span class="operator"><</span>object type<span class="operator">=</span><span class="string">"application/x-pdf"</span> data<span class="operator">=</span><span class="string">"http://qt.nokia.com/document.pdf"</span> width<span class="operator">=</span><span class="string">"500"</span> height<span class="operator">=</span><span class="string">"400"</span><span class="operator">></span>
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<span class="operator"><</span>param name<span class="operator">=</span><span class="string">"showTableOfContents"</span> value<span class="operator">=</span><span class="string">"true"</span> <span class="operator">/</span><span class="operator">></span>
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<span class="operator"><</span>param name<span class="operator">=</span><span class="string">"hideThumbnails"</span> value<span class="operator">=</span><span class="string">"false"</span> <span class="operator">/</span><span class="operator">></span>
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<span class="operator"><</span><span class="operator">/</span>object<span class="operator">></span></pre>
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<p>The above object element will result in a call to create() with the following arguments:</p>
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<table class="generic">
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<thead><tr class="qt-style"><th >Parameter</th><th >Value</th></tr></thead>
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<tr valign="top" class="odd"><td >mimeType</td><td >"application/x-pdf"</td></tr>
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<tr valign="top" class="even"><td >url</td><td >"http://qt.nokia.com/document.pdf"</td></tr>
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<tr valign="top" class="odd"><td >argumentNames</td><td >"showTableOfContents" "hideThumbnails"</td></tr>
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<tr valign="top" class="even"><td >argumentVaues</td><td >"true" "false"</td></tr>
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</table>
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<p><b>Note:</b> Ownership of the returned object will be transferred to the caller.</p>
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<!-- @@@create -->
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<!-- $$$plugins[overload1]$$$plugins -->
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<h3 class="fn"><a name="plugins"></a><span class="type"><a href="qlist.html">QList</a></span><<span class="type"><a href="qwebpluginfactory-plugin.html">Plugin</a></span>> QWebPluginFactory::<span class="name">plugins</span> () const<tt> [pure virtual]</tt></h3>
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<p>This function is reimplemented in subclasses to return a list of supported plugins the factory can create.</p>
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<p><b>Note:</b> Currently, this function is only called when JavaScript programs access the global <tt>plugins</tt> or <tt>mimetypes</tt> objects.</p>
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<!-- @@@plugins -->
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<!-- $$$refreshPlugins[overload1]$$$refreshPlugins -->
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<h3 class="fn"><a name="refreshPlugins"></a><span class="type">void</span> QWebPluginFactory::<span class="name">refreshPlugins</span> ()<tt> [virtual]</tt></h3>
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<p>This function is called to refresh the list of supported plugins. It may be called after a new plugin has been installed in the system.</p>
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<!-- @@@refreshPlugins -->
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<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
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Documentation contributions included herein are the copyrights of
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The documentation provided herein is licensed under the terms of the
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