wxpython：wx.html2 是好用的 WebView 组件-编程知识

wxpython：wx.html2 是好用的 WebView 组件

wxpython : wx.html2 是好用的 WebView 组件。

pip install wxpython==4.2
wxPython-4.2.0-cp37-cp37m-win_amd64.whl (18.0 MB)
Successfully installed wxpython-4.2.0

cd \Python37\Scripts

wxdemo.exe 取得 wxPython-demo-4.2.0.tar.gz

wxdocs.exe 取得 wxPython-docs-4.2.0.tar.gz

编写 test_wx_html2.py 如下

# -*- coding: utf-8 -*-
import os
import sys
import wx
import wx.html2 as wbv# WebView Backends
backends = [(wbv.WebViewBackendEdge, 'WebViewBackendEdge'),(wbv.WebViewBackendIE, 'WebViewBackendIE'),(wbv.WebViewBackendWebKit, 'WebViewBackendWebKit'),(wbv.WebViewBackendDefault, 'WebViewBackendDefault'),
]#----------------------------------------------------------------------
class TestPanel(wx.Panel):def __init__(self, parent, log, frame=None):wx.Panel.__init__(self, parent, -1)self.current = "http://localhost:8888"self.frame = frameif frame:self.titleBase = frame.GetTitle()sizer = wx.BoxSizer(wx.VERTICAL)btnSizer = wx.BoxSizer(wx.HORIZONTAL)# The Internet Explorer emulation level is a persistent per-user and# per-application value.wbv.WebView.MSWSetEmulationLevel(wbv.WEBVIEWIE_EMU_IE11)# If you would like to reset it back to the default (no-emulation) then# it can be done by calling this:# wbv.WebView.MSWSetEmulationLevel(wbv.WEBVIEWIE_EMU_DEFAULT)# Find an available backendbackend = Nonefor id, name in backends:available = wbv.WebView.IsBackendAvailable(id)print("Backend 'wx.html2.{}' availability: {}\n".format(name, available))if available and backend is None:backend = idprint("Using backend: '{}'\n".format(str(backend, 'ascii')))# Create the WebViewself.wv = wbv.WebView.New(self, backend=backend)self.Bind(wbv.EVT_WEBVIEW_NAVIGATING, self.OnWebViewNavigating, self.wv)self.Bind(wbv.EVT_WEBVIEW_LOADED, self.OnWebViewLoaded, 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(['https://fanyi.baidu.com/','https://cn.bing.com/','https://fanyi.sogou.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)def ShutdownDemo(self):# put the frame title backif self.frame:self.frame.SetTitle(self.titleBase)# WebView eventsdef OnWebViewNavigating(self, evt):# this event happens prior to trying to get a resourceif 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 OnWebViewLoaded(self, evt):# The full document has loadedself.current = evt.GetURL()self.location.SetValue(self.current)# Control bar eventsdef 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):self.wv.GoBack()def OnNextPageButton(self, event):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()class MyFrame(wx.Frame):    def __init__(self):super().__init__(parent=None, title='wx.html2 示例', size=(1000, 600))self.panel = TestPanel(self, wx.ID_ANY)self.Show()if __name__ == '__main__':app = wx.App(False)frame = MyFrame()app.MainLoop()

运行 python test_wx_html2.py