2011年11月8日
Openforce アプリケーション開発

PySide+Javascript+QWebView連携

なかなか思い通りに動いてくれなくて苦労した

# -*- coding: utf-8 -*-
'''
QWebViewの動作確認
'''
from PySide import QtWebKit,QtGui,QtCore
import sys
 
HTML = u"""<html>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
    <script>
 
        if(!pyObj.say)
        {
            document.write("addToJavaScriptWindowObjectがよびだせませんでした");
        }else{
            document.write(pyObj.say);
        }
        pyObj.setMessage("メソッドの呼び出しに成功しました");
    </script>
    <body>
        <h1>Test Page</h1>
        <a href="http://google.co.jp">google</a>
    </body>
</html>
 
"""
 
class PyObject(QtCore.QObject):
    name = ""
    @QtCore.Slot(str)
    def setMessage(self, msg):
        """ javascriptから受け取り """
        print msg
 
 
    def _say(self):
        """ javascriptへデータを送る """
        return u"メッセージの呼び出しに成功しました"
    say = QtCore.Property(str, fget=_say)
 
 
 
class MyWebview(QtWebKit.QWebView):
    def __init__(self, *args, **kwargs):
 
        QtWebKit.QWebView.__init__(self, *args, **kwargs)
        #link ClickedはsetLinkDelegationPolicyを設定しないと有効にならない
        self.page().setLinkDelegationPolicy(QtWebKit.QWebPage.DelegateExternalLinks)
        self.connect(self.page(), QtCore.SIGNAL('linkClicked(const QUrl &)'), self.linkClickAction)
        #javascriptの呼び出し
        self.connect(self.page().mainFrame(), QtCore.SIGNAL("javaScriptWindowObjectCleared ()"), self.javaScriptWindowObjectCleared)
 
    def javaScriptWindowObjectCleared(self):
        """ javascript連携 """
        self.js = PyObject()
        self.page().mainFrame().addToJavaScriptWindowObject("PyObj", self.js)
 
        self.page().mainFrame().evaluateJavaScript (" var MyParameters=1;")
 
 
    def linkClickAction(self, url):
        print "link clicked!"
        self.load(url)
 
    def mouseReleaseEvent(self, *args, **kwargs):
        print "Mouse Release!"
        return QtWebKit.QWebView.mouseReleaseEvent(self, *args, **kwargs)
 
 
    def mouseMoveEvent(self, ev):
        return QtWebKit.QWebView.mouseMoveEvent(self, ev)
        """
        ev = QMouseEvent
        """
        print "mouseMove"
        print ev.x()
        print ev.y()
        print ev.globalX()
        print ev.globalY()
 
 
    pass
 
 
def linkClicked(url):
    print "link clicked"
    print url
    #QtWebKit.QWebView.setUrl(url)
 
def linkHoverd(url):
    print "link clicked"
    print url
 
 
def urlChanged(url):
    print "url changed"
 
def loadStarted():
    print "load start"
 
def selectionChanged():
    print "selection changed"
 
def titleChanged(title):
    print title
 
def statusBarMessage (text):
    print "status bar message"
    print text
 
def loadFinished(result):
    print "finished"
    print result
 
def loadProgress(prog):
    print "load progress"
    print prog
 
 
def linkHovered(a, b, c):
    print "link hovered!"
    print a
    print b
    print c
 
app = QtGui.QApplication(sys.argv)
view = MyWebview()
 
 
QtCore.QObject.connect(view, QtCore.SIGNAL('loadStarted ()'), loadStarted)
QtCore.QObject.connect(view, QtCore.SIGNAL('loadFinished(bool)'), loadFinished)
QtCore.QObject.connect(view, QtCore.SIGNAL('loadProgress(int)'), loadProgress)
QtCore.QObject.connect(view.page(), QtCore.SIGNAL('linkHovered(const QString&,const QString&,const QString&)'), linkHovered)
 
 
QtCore.QObject.connect(view, QtCore.SIGNAL('urlChanged(const QUrl &)'), urlChanged)
QtCore.QObject.connect(view, QtCore.SIGNAL('selectionChanged()'), selectionChanged)
QtCore.QObject.connect(view, QtCore.SIGNAL('titleChanged(const QString & )'), titleChanged)
QtCore.QObject.connect(view.page(), QtCore.SIGNAL('statusBarMessage(const QString&)'), statusBarMessage)
 
view.setHtml(HTML)
view.show()
# Enter Qt main loop
sys.exit(app.exec_())