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Copy pathchromectrl.py
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314 lines (248 loc) · 11.2 KB
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# Additional and wx specific layer of abstraction for the cefpython
# __author__ = "Greg Kacy <grkacy@gmail.com>"
#--------------------------------------------------------------------------------
from cefpython1 import cefpython
from cefpython1.wx.utils import ExceptHook
import os, sys, platform
import wx
import wx.lib.buttons as buttons
#-------------------------------------------------------------------------------
# Default timer interval when timer used to service CEF message loop
DEFAULT_TIMER_MILLIS = 10
#-------------------------------------------------------------------------------
class NavigationBar(wx.Panel):
def __init__(self, parent, *args, **kwargs):
wx.Panel.__init__(self, parent, *args, **kwargs)
self.bitmapDir = os.path.join(os.path.dirname(
os.path.abspath(__file__)), "images")
self._InitComponents()
self._LayoutComponents()
self._InitEventHandlers()
def _InitComponents(self):
self.backBtn = buttons.GenBitmapButton(self, -1,
wx.Bitmap(os.path.join(self.bitmapDir, "Arrow Left.png"),
wx.BITMAP_TYPE_PNG), style=wx.BORDER_NONE)
self.forwardBtn = buttons.GenBitmapButton(self, -1,
wx.Bitmap(os.path.join(self.bitmapDir, "Arrow Right.png"),
wx.BITMAP_TYPE_PNG), style=wx.BORDER_NONE)
self.reloadBtn = buttons.GenBitmapButton(self, -1,
wx.Bitmap(os.path.join(self.bitmapDir, "Button Load.png"),
wx.BITMAP_TYPE_PNG), style=wx.BORDER_NONE)
self.url = wx.TextCtrl(self, id=-1, style=0)
self.historyPopup = wx.Menu()
def _LayoutComponents(self):
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add(self.backBtn, 0, wx.ALIGN_LEFT|wx.ALIGN_CENTER_VERTICAL|
wx.ALL, 0)
sizer.Add(self.forwardBtn, 0, wx.ALIGN_LEFT|wx.ALIGN_CENTER_VERTICAL|
wx.ALL, 0)
sizer.Add(self.reloadBtn, 0, wx.ALIGN_LEFT|wx.ALIGN_CENTER_VERTICAL|
wx.ALL, 0)
sizer.Add(self.url, 1, wx.EXPAND|wx.ALIGN_CENTER_VERTICAL|wx.ALL, 12)
self.SetSizer(sizer)
self.Fit()
def _InitEventHandlers(self):
self.backBtn.Bind(wx.EVT_CONTEXT_MENU, self.OnButtonContext)
def __del__(self):
self.historyPopup.Destroy()
def GetBackButton(self):
return self.backBtn
def GetForwardButton(self):
return self.forwardBtn
def GetReloadButton(self):
return self.reloadBtn
def GetUrlCtrl(self):
return self.url
def InitHistoryPopup(self):
self.historyPopup = wx.Menu()
def AddToHistory(self, url):
self.historyPopup.Append(-1, url)
def OnButtonContext(self, event):
self.PopupMenu(self.historyPopup)
class ChromeWindow(wx.Window):
"""
Standalone CEF component. The class provides facilites for interacting
with wx message loop
"""
def __init__(self, parent, url="", useTimer=False,
timerMillis=DEFAULT_TIMER_MILLIS, size=(-1, -1),
*args, **kwargs):
wx.Window.__init__(self, parent, id=wx.ID_ANY, size=size,
*args, **kwargs)
# On Linux absolute file urls need to start with "file://"
# otherwise a path of "/home/some" is converted to "http://home/some".
if platform.system() == "Linux":
if url.startswith("/"):
url = "file://" + url
self.url = url
windowInfo = cefpython.WindowInfo()
if platform.system() == "Windows":
windowInfo.SetAsChild(self.GetHandle())
elif platform.system() == "Linux":
windowInfo.SetAsChild(self.GetGtkWidget())
else:
raise Exception("Unsupported OS")
# TODO: allow for custom browser settings for the ChromeWindow
browserSettings = {}
if platform.system() == "Linux":
# Disable plugins on Linux as Flash will crash the application
# in CEF 1 on Linux, it's a known problem.
if not "plugins_disabled" in browserSettings:
browserSettings["plugins_disabled"] = True
self.browser = cefpython.CreateBrowserSync(windowInfo,
browserSettings=browserSettings, navigateUrl=url)
if platform.system() == "Windows":
self.Bind(wx.EVT_SET_FOCUS, self.OnSetFocus)
self.Bind(wx.EVT_SIZE, self.OnSize)
if useTimer:
self.timerID = 1
self._CreateTimer(timerMillis)
else:
self.Bind(wx.EVT_IDLE, self.OnIdle)
self._useTimer = useTimer
def __del__(self):
'''cleanup stuff'''
if self._useTimer:
self.timer.Stop()
# Calling Unbind() is unnecessary and will cause problems on Windows 8, see:
# https://groups.google.com/d/topic/cefpython/iXE7e1ekArI/discussion
# | self.Unbind(wx.EVT_IDLE)
self.browser.CloseBrowser()
def _CreateTimer(self, millis):
self.timer = wx.Timer(self, self.timerID)
self.timer.Start(millis) #
wx.EVT_TIMER(self, self.timerID, self.OnTimer)
def OnTimer(self, event):
"""Service CEF message loop when useTimer is True"""
cefpython.MessageLoopWork()
def OnIdle(self, event):
"""Service CEF message loop when useTimer is False"""
cefpython.MessageLoopWork()
event.Skip()
def OnSetFocus(self, event):
"""OS_WIN only."""
cefpython.WindowUtils.OnSetFocus(self.GetHandle(), 0, 0, 0)
event.Skip()
def OnSize(self, event):
"""OS_WIN only. Handle the the size event"""
cefpython.WindowUtils.OnSize(self.GetHandle(), 0, 0, 0)
event.Skip()
def GetBrowser(self):
"""Returns the CEF's browser object"""
return self.browser
def LoadUrl(self, url, onLoadStart=None, onLoadEnd=None):
if onLoadStart or onLoadEnd:
self.GetBrowser().SetClientHandler(
CallbackClientHandler(onLoadStart, onLoadEnd))
self.GetBrowser().GetMainFrame().LoadUrl(url)
class ChromeCtrl(wx.Panel):
def __init__(self, parent, url="", useTimer=False,
timerMillis=DEFAULT_TIMER_MILLIS, hasNavBar=True,
*args, **kwargs):
wx.Panel.__init__(self, parent, *args, **kwargs)
self.chromeWindow = ChromeWindow(self, url=str(url), useTimer=useTimer)
sizer = wx.BoxSizer(wx.VERTICAL)
self.navigationBar = None
if hasNavBar:
self.navigationBar = self.CreateNavigationBar()
sizer.Add(self.navigationBar, 0, wx.EXPAND|wx.ALL, 0)
self._InitEventHandlers()
sizer.Add(self.chromeWindow, 1, wx.EXPAND, 0)
self.SetSizer(sizer)
self.Fit()
ch = DefaultClientHandler(self)
self.SetClientHandler(ch)
if self.navigationBar:
self.UpdateButtonsState()
def _InitEventHandlers(self):
self.navigationBar.backBtn.Bind(wx.EVT_BUTTON, self.OnLeft)
self.navigationBar.forwardBtn.Bind(wx.EVT_BUTTON, self.OnRight)
self.navigationBar.reloadBtn.Bind(wx.EVT_BUTTON, self.OnReload)
def GetNavigationBar(self):
return self.navigationBar
def SetNavigationBar(self, navigationBar):
sizer = self.GetSizer()
if self.navigationBar:
# remove previous one
sizer.Replace(self.navigationBar, navigationBar)
self.navigationBar.Hide()
del self.navigationBar
else:
sizer.Insert(0, navigationBar, 0, wx.EXPAND)
self.navigationBar = navigationBar
sizer.Fit(self)
def CreateNavigationBar(self):
np = NavigationBar(self)
return np
def SetClientHandler(self, handler):
self.chromeWindow.GetBrowser().SetClientHandler(handler)
def OnLeft(self, event):
if self.chromeWindow.GetBrowser().CanGoBack():
self.chromeWindow.GetBrowser().GoBack()
self.UpdateButtonsState()
def OnRight(self, event):
if self.chromeWindow.GetBrowser().CanGoForward():
self.chromeWindow.GetBrowser().GoForward()
self.UpdateButtonsState()
def OnReload(self, event):
self.chromeWindow.GetBrowser().Reload()
self.UpdateButtonsState()
def UpdateButtonsState(self):
self.navigationBar.backBtn.Enable(
self.chromeWindow.GetBrowser().CanGoBack())
self.navigationBar.forwardBtn.Enable(
self.chromeWindow.GetBrowser().CanGoForward())
def OnLoadStart(self, browser, frame):
if self.navigationBar:
self.UpdateButtonsState()
self.navigationBar.GetUrlCtrl().SetValue(
browser.GetMainFrame().GetUrl())
self.navigationBar.AddToHistory(browser.GetMainFrame().GetUrl())
def OnLoadEnd(self, browser, frame, httpStatusCode):
pass
class DefaultClientHandler(object):
def __init__(self, parentCtrl):
self.parentCtrl = parentCtrl
def OnLoadStart(self, browser, frame):
self.parentCtrl.OnLoadStart(browser, frame)
def OnLoadEnd(self, browser, frame, httpStatusCode):
self.parentCtrl.OnLoadEnd(browser, frame, httpStatusCode)
def OnLoadError(self, browser, frame, errorCode, failedUrl, errorText):
# TODO
print("ERROR LOADING URL : %s" % failedUrl)
class CallbackClientHandler(object):
def __init__(self, onLoadStart=None, onLoadEnd=None):
self.onLoadStart = onLoadStart
self.onLoadEnd = onLoadEnd
def OnLoadStart(self, browser, frame):
if self.onLoadStart and frame.GetUrl() != "about:blank":
self.onLoadStart(browser, frame)
def OnLoadEnd(self, browser, frame, httpStatusCode):
if self.onLoadEnd and frame.GetUrl() != "about:blank":
self.onLoadEnd(browser, frame, httpStatusCode)
def OnLoadError(self, browser, frame, errorCode, failedUrl, errorText):
# TODO
print("ERROR LOADING URL : %s" % failedUrl)
#-------------------------------------------------------------------------------
def Initialize(settings=None):
"""Initializes CEF, We should do it before initializing wx
If no settings passed a default is used
"""
sys.excepthook = ExceptHook
if not settings:
settings = {}
if not "log_severity" in settings:
settings["log_severity"] = cefpython.LOGSEVERITY_INFO
if not "log_file" in settings:
settings["log_file"] = ""
if platform.system() == "Linux":
# On Linux we need to set locales and resources directories.
if not "locales_dir_path" in settings:
settings["locales_dir_path"] = cefpython.GetModuleDirectory()+(
"/locales")
if not "resources_dir_path" in settings:
settings["resources_dir_path"] = cefpython.GetModuleDirectory()
cefpython.Initialize(settings)
def Shutdown():
"""Shuts down CEF, should be called by app exiting code"""
cefpython.Shutdown()
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