js和qt4 evaluteJavascript

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#coding=utf-8__author__ = 'ds'from PyQt4.QtCore import *from PyQt4.QtWebKit import *from PyQt4.QtNetwork import *from PyQt4.QtGui import *import sys,osclass Page(QWebPage):    def __init__(self, parent = None):        super(Page, self).__init__(parent)        #设置连接代理模式        #self.setLinkDelegationPolicy(QWebPage.DelegateAllLinks)        #连接点击，加载URL地址        self.linkClicked.connect(self.onLinkClick)        self.loadFinished.connect(self.onLoadFinish)    def onLinkClick(self, url):        self.mainFrame().load(url)    @staticmethod    def doMouseClick(obj, pos):        # mouse down        evt = QMouseEvent(QEvent.MouseButtonPress, pos,                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)        QApplication.sendEvent(obj, evt)        # mouse up        evt = QMouseEvent(QEvent.MouseButtonRelease, pos,                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)        QApplication.sendEvent(obj, evt)    def onLoadFinish(self):        css = 'a[class="mnav"][name="tj_trmap"]'        js = 'this.click();'        root = self.mainFrame().documentElement()        link_map = root.findFirst(css)        if link_map:            #方案1：可能不会起作用，除了按钮以为并非对所有的链接都支持            #link_map.evaluateJavaScript(js)            #方案2，直接做鼠标点击的模拟，对隐藏控件不行            #self.doMouseClick(self, link_map.geometry().center())            #方案3，使用event进行处理，只要支持事件，就可以（除非禁掉)            link_map.evaluateJavaScript("""                //鼠标点击                var e = document.createEvent('MouseEvents');                e.initEvent('click', true, true);                //将该事件分发给自己进行接收                this.dispatchEvent(e);                //直接使用事件处理很好用                //this.addEventListener('click', function(){                //    alert('test');                //});                """)            print('Javascript Evaluated.')app = QApplication(sys.argv)QNetworkProxyFactory.setUseSystemConfiguration(True)mv = QWebView()mv.setWindowTitle(u'Javascript浏览器')mv.setPage(Page())mv.show()mv.load(QUrl('http://www.baidu.com'))app.exec_()
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