qt调用js，js调用qt
Posted Dsp Tian
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<html> <script language="javascript"> function qtcalljs() { alert("sdfsd"); } function jscallqt() { mainWindow.dosome(); } </script> <body> <button onclick="jscallqt()" style=="height:20px;width:100px"/> </body> </html>
qt.h：
#ifndef QTTT_H
#define QTTT_H
#include <QtGui/QMainWindow>
#include <QWebKitPlatformPlugin>
#include <QWebFrame>
#include <QMessageBox>
#include <QObject>
#include "ui_qttt.h"
class qttt : public QMainWindow
{
Q_OBJECT
public:
qttt(QWidget *parent = 0, Qt::WFlags flags = 0);
~qttt();
private:
Ui::qtttClass ui;
private slots:
void pop();
void addMyObjectToJavascript();
public:
Q_INVOKABLE void dosome();
};
#endif // QTTT_H
qt.cpp
#include "qttt.h"
qttt::qttt(QWidget *parent, Qt::WFlags flags)
: QMainWindow(parent, flags)
{
ui.setupUi(this);
ui.webView->load(QUrl("test.html"));
connect(ui.pushButton,SIGNAL(clicked()),this,SLOT(pop()));
connect(ui.webView->page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()), this, SLOT(addMyObjectToJavascript()));
}
qttt::~qttt()
{
}
void qttt::pop()
{
ui.webView->page()->mainFrame()->evaluateJavaScript("qtcalljs();");
}
void qttt::addMyObjectToJavascript()
{
ui.webView->page()->mainFrame()->addToJavaScriptWindowObject("mainWindow", this);
}
void qttt::dosome()
{
QMessageBox::aboutQt(this,"sdfsa");
}
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