QtWebKit插件的设计可以分为两种情况，一种是MIME类型是application/x-qt-plugin或者application/x-qt-styled-widget，而另一种却无此限制，可以是任意类型。本文主要介绍第一种，相比于第二种情形也更简单，只需要重新实现QObject* QWebPage::createPlugin(const QString &classid,const QUrl &url,const QStringList & paramNames,const QStringList & paramValues)。
webPlugin.pro
- TEMPLATE = app
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QT += webkit
-
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HEADERS += myPlugin.h
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SOURCES += main.cpp myPlugin.cpp
main.cpp
- #include <QApplication>
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#include <QtGui>
-
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#include "myPlugin.h"
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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MyWebView *webView = new MyWebView;
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webView->load(QUrl("Test.html"));
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webView->show();
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app.exec();
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}
myPlugin.h
- #ifndef MY_PLUGIN_H
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#define MY_PLUGIN_H
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#include <QWebPage>
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#include <QWebView>
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// Derive from QWebPage, because a WebPage handles
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// plugin creation
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class MyWebPage: public QWebPage
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{
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Q_OBJECT
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protected:
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QObject *createPlugin(
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const QString &classid,
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const QUrl &url,
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const QStringList ¶mNames,
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const QStringList & paramValues);
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public:
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MyWebPage(QObject *parent = 0);
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};
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// Derive a new class from QWebView for convenience.
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// Otherwise you'd always have to create a QWebView
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// and a MyWebPage and assign the MyWebPage object
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// to the QWebView. This class does that for you
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// automatically.
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class MyWebView: public QWebView
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{
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Q_OBJECT
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private:
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MyWebPage m_page;
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public:
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MyWebView(QWidget *parent = 0);
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};
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#endif
myPlugin.cpp
- #include <QtCore>
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#include <QtGui>
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#include "myPlugin.h"
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MyWebPage::MyWebPage(QObject *parent):
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QWebPage(parent)
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{
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// Enable plugin support
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settings()->setAttribute(QWebSettings::PluginsEnabled, true);
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}
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QObject *MyWebPage::createPlugin(
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const QString &classid,
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const QUrl &,
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const QStringList &,
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const QStringList &)
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{
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QObject *result = 0;
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if(classid == "pushbutton")
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//qDebug()<<"pushbutton";
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result = new QPushButton();
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else if(classid == "lineedit")
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//qDebug()<<"lineedit";
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result = new QLineEdit();
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if(result)
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result->setObjectName(classid);
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return result;
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}
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MyWebView::MyWebView(QWidget *parent):
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QWebView(parent),
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m_page(this)
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{
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setPage(&m_page);
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}
Test.html
- <html>
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<head>
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<title>QtWebKit Plug-in Test</title>
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</head>
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<body>
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<object type="application/x-qt-plugin" classid="pushbutton" name="mybutton" height=300 width=500></object>
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</body>
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</html>
编译运行
qmake
make
./webPlugin
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