使用python写你自己的web浏览器
使用 wxpython + webview
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import sys
import wx
import wx.html2 as webview
#———————————————————————-
class TestPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.current = "www.foxavideo.com"
self.frame = self.GetTopLevelParent()
self.titleBase = self.frame.GetTitle()
sizer = wx.BoxSizer(wx.VERTICAL)
btnSizer = wx.BoxSizer(wx.HORIZONTAL)
self.wv = webview.WebView.New(self)
self.Bind(webview.EVT_WEBVIEW_NAVIGATING, self.OnWebViewNavigating, self.wv)
self.Bind(webview.EVT_WEBVIEW_NAVIGATED, self.OnWebViewNavigated, self.wv)
self.Bind(webview.EVT_WEBVIEW_LOADED, self.OnWebViewLoaded, self.wv)
self.Bind(webview.EVT_WEBVIEW_TITLE_CHANGED, self.OnWebViewTitleChanged, self.wv)
self.Bind(webview.EVT_WEBVIEW_ERROR, self.OnWebViewError, self.wv)
btn = wx.Button(self, -1, "Open", style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self.OnOpenButton, btn)
btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)
btn = wx.Button(self, -1, "<–", style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self.OnPrevPageButton, btn)
btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)
self.Bind(wx.EVT_UPDATE_UI, self.OnCheckCanGoBack, btn)
btn = wx.Button(self, -1, "–>", style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self.OnNextPageButton, btn)
btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)
self.Bind(wx.EVT_UPDATE_UI, self.OnCheckCanGoForward, btn)
btn = wx.Button(self, -1, "Stop", style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self.OnStopButton, btn)
btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)
btn = wx.Button(self, -1, "Refresh", style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self.OnRefreshPageButton, btn)
btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)
txt = wx.StaticText(self, -1, "Location:")
btnSizer.Add(txt, 0, wx.CENTER|wx.ALL, 2)
self.location = wx.ComboBox(
self, -1, "", style=wx.CB_DROPDOWN|wx.TE_PROCESS_ENTER)
self.location.AppendItems(['http://wxPython.org',
'http://wxwidgets.org',
'http://google.com'])
self.Bind(wx.EVT_COMBOBOX, self.OnLocationSelect, self.location)
self.location.Bind(wx.EVT_TEXT_ENTER, self.OnLocationEnter)
btnSizer.Add(self.location, 1, wx.EXPAND|wx.ALL, 2)
sizer.Add(btnSizer, 0, wx.EXPAND)
sizer.Add(self.wv, 1, wx.EXPAND)
self.SetSizer(sizer)
self.wv.LoadURL(self.current)
# WebView events
def OnWebViewNavigating(self, evt):
# this event happens prior to trying to get a resource
if evt.GetURL() == 'http://www.microsoft.com/':
if wx.MessageBox("Are you sure you want to visit Microsoft?", style=wx.YES_NO|wx.ICON_QUESTION) == wx.NO:
# This is how you can cancel loading a page.
evt.Veto()
def OnWebViewNavigated(self, evt):
self.frame.SetStatusText("Loading %s…" % evt.GetURL())
def OnWebViewError( self, evt ):
self.frame.SetStatusText("error happened here" )
def OnWebViewLoaded(self, evt):
# The full document has loaded
self.current = evt.GetURL()
self.location.SetValue(self.current)
self.frame.SetStatusText("Loaded")
if( self.wv.GetCurrentURL() == 'about:blank' ):
return
else:
#wx.MessageBox( self.wv.GetCurrentURL(), 'info', wx.OK | wx.ICON_INFORMATION )
#self.wv.RunScript("alert('Hello World!');");
self.wv.RunScript( "var ele=document.getElementsByName('apptDetails.apptType'); if ( ele == None ) { alert( 'get nothing' ); } else { alert( 'got something' ); }")
def OnWebViewTitleChanged(self, evt):
# Set the frame's title to include the document's title
self.frame.SetTitle("%s — %s" % (self.titleBase, evt.GetString()))
# Control bar events
def OnLocationSelect(self, evt):
url = self.location.GetStringSelection()
print('OnLocationSelect: %s\n' % url)
self.wv.LoadURL(url)
def OnLocationEnter(self, evt):
url = self.location.GetValue()
self.location.Append(url)
self.wv.LoadURL(url)
def OnOpenButton(self, event):
dlg = wx.TextEntryDialog(self, "Open Location",
"Enter a full URL or local path",
self.current, wx.OK|wx.CANCEL)
dlg.CentreOnParent()
if dlg.ShowModal() == wx.ID_OK:
self.current = dlg.GetValue()
self.wv.LoadURL(self.current)
dlg.Destroy()
def OnPrevPageButton(self, event):
for i in self.wv.GetBackwardHistory():
print("%s %s" % (i.Url, i.Title))
self.wv.GoBack()
def OnNextPageButton(self, event):
for i in self.wv.GetForwardHistory():
print("%s %s" % (i.Url, i.Title))
self.wv.GoForward()
def OnCheckCanGoBack(self, event):
event.Enable(self.wv.CanGoBack())
def OnCheckCanGoForward(self, event):
event.Enable(self.wv.CanGoForward())
def OnStopButton(self, evt):
self.wv.Stop()
def OnRefreshPageButton(self, evt):
self.wv.Reload()
#———————————————————————-
def main():
app = wx.App()
frm = wx.Frame(None, title="html2.WebView sample", size=(1024,768))
frm.CreateStatusBar()
pnl = TestPanel(frm)
frm.Show()
app.MainLoop()
#———————————————————————-
if __name__ == '__main__':
main()
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