Repository navigation
Expand file tree
/
Copy pathwxpython.py
More file actions
526 lines (468 loc) · 20.7 KB
/
Copy pathwxpython.py
File metadata and controls
526 lines (468 loc) · 20.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
# An example of embedding CEF in wxPython application.
import platform
if platform.architecture()[0] != "32bit":
raise Exception("Only 32bit architecture is supported")
import os, sys
libcef_dll = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'libcef.dll')
if os.path.exists(libcef_dll):
# Import the local module.
if 0x02070000 <= sys.hexversion < 0x03000000:
import cefpython_py27 as cefpython
elif 0x03000000 <= sys.hexversion < 0x04000000:
import cefpython_py32 as cefpython
else:
raise Exception("Unsupported python version: %s" % sys.version)
else:
# Import the package.
from cefpython1 import cefpython
import wx
import time
import re
import uuid
# Which method to use for message loop processing.
# EVT_IDLE - wx application has priority (default)
# EVT_TIMER - cef browser has priority
# From the tests it seems that Flash content behaves
# better when using a timer.
USE_EVT_IDLE = True
def GetApplicationPath(file=None):
import re, os, platform
# If file is None return current directory without trailing slash.
if file is None:
file = ""
# Only when relative path.
if not file.startswith("/") and not file.startswith("\\") and (
not re.search(r"^[\w-]+:", file)):
if hasattr(sys, "frozen"):
path = os.path.dirname(sys.executable)
elif "__file__" in globals():
path = os.path.dirname(os.path.realpath(__file__))
else:
path = os.getcwd()
path = path + os.sep + file
if platform.system() == "Windows":
path = re.sub(r"[/\\]+", re.escape(os.sep), path)
path = re.sub(r"[/\\]+$", "", path)
return path
return str(file)
def ExceptHook(excType, excValue, traceObject):
import traceback, os, time, codecs
# This hook does the following: in case of exception write it to
# the "error.log" file, display it to the console, shutdown CEF
# and exit application immediately by ignoring "finally" (_exit()).
errorMsg = "\n".join(traceback.format_exception(excType, excValue,
traceObject))
errorFile = GetApplicationPath("error.log")
try:
appEncoding = cefpython.g_applicationSettings["string_encoding"]
except:
appEncoding = "utf-8"
if type(errorMsg) == bytes:
errorMsg = errorMsg.decode(encoding=appEncoding, errors="replace")
try:
with codecs.open(errorFile, mode="a", encoding=appEncoding) as fp:
fp.write("\n[%s] %s\n" % (
time.strftime("%Y-%m-%d %H:%M:%S"), errorMsg))
except:
print("cefpython: WARNING: failed writing to error file: %s" % (
errorFile))
# Convert error message to ascii before printing, otherwise
# you may get error like this:
# | UnicodeEncodeError: 'charmap' codec can't encode characters
errorMsg = errorMsg.encode("ascii", errors="replace")
errorMsg = errorMsg.decode("ascii", errors="replace")
print("\n"+errorMsg+"\n")
cefpython.QuitMessageLoop()
cefpython.Shutdown()
os._exit(1)
class MainFrame(wx.Frame):
browser = None
def __init__(self):
wx.Frame.__init__(self, parent=None, id=wx.ID_ANY,
title='wxPython example', size=(800,600))
self.CreateMenu()
windowInfo = cefpython.WindowInfo()
windowInfo.SetAsChild(self.GetHandle())
self.browser = cefpython.CreateBrowserSync(windowInfo,
browserSettings={},
navigateUrl=GetApplicationPath("wxpython.html"))
self.browser.SetClientHandler(ClientHandler())
jsBindings = cefpython.JavascriptBindings(
bindToFrames=False, bindToPopups=False)
jsBindings.SetObject("external", JavascriptBindings(self.browser))
self.browser.SetJavascriptBindings(jsBindings)
self.Bind(wx.EVT_SET_FOCUS, self.OnSetFocus)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.Bind(wx.EVT_CLOSE, self.OnClose)
if USE_EVT_IDLE:
# Bind EVT_IDLE only for the main application frame.
self.Bind(wx.EVT_IDLE, self.OnIdle)
def CreateMenu(self):
filemenu = wx.Menu()
filemenu.Append(1, "Open")
exit = filemenu.Append(2, "Exit")
self.Bind(wx.EVT_MENU, self.OnClose, exit)
aboutmenu = wx.Menu()
aboutmenu.Append(1, "CEF Python")
menubar = wx.MenuBar()
menubar.Append(filemenu,"&File")
menubar.Append(aboutmenu, "&About")
self.SetMenuBar(menubar)
def OnSetFocus(self, event):
cefpython.WindowUtils.OnSetFocus(self.GetHandle(), 0, 0, 0)
def OnSize(self, event):
cefpython.WindowUtils.OnSize(self.GetHandle(), 0, 0, 0)
def OnClose(self, event):
self.browser.CloseBrowser()
self.Destroy()
def OnIdle(self, event):
cefpython.MessageLoopWork()
class JavascriptBindings:
mainBrowser = None
webRequest = None
webRequestId = 0
cookieVisitor = None
def __init__(self, mainBrowser):
self.mainBrowser = mainBrowser
def WebRequest(self, url):
request = cefpython.Request.CreateRequest()
request.SetUrl(url)
webRequestClient = WebRequestClient()
# Must keep the reference otherwise WebRequestClient
# callbacks won't be called.
self.webRequest = cefpython.WebRequest.CreateWebRequest(request,
webRequestClient)
def DoCallFunction(self):
self.mainBrowser.GetMainFrame().CallFunction(
"MyFunction", "abc", 12, [1,2,3], {"qwe": 456, "rty": 789})
def VisitAllCookies(self):
# Need to keep the reference alive.
self.cookieVisitor = CookieVisitor()
cookieManager = self.mainBrowser.GetUserData("cookieManager")
if not cookieManager:
print("\nCookie manager not yet created! Visit http website first")
return
cookieManager.VisitAllCookies(self.cookieVisitor)
def VisitUrlCookies(self):
# Need to keep the reference alive.
self.cookieVisitor = CookieVisitor()
cookieManager = self.mainBrowser.GetUserData("cookieManager")
if not cookieManager:
print("\nCookie manager not yet created! Visit http website first")
return
cookieManager.VisitUrlCookies(
"http://www.html-kit.com/tools/cookietester/",
False, self.cookieVisitor)
# .www.html-kit.com
def SetCookie(self):
cookieManager = self.mainBrowser.GetUserData("cookieManager")
if not cookieManager:
print("\nCookie manager not yet created! Visit http website first")
return
cookie = cefpython.Cookie()
cookie.SetName("Created_Via_Python")
cookie.SetValue("yeah really")
cookieManager.SetCookie("http://www.html-kit.com/tools/cookietester/",
cookie)
print("\nCookie created! Visit html-kit cookietester to see it")
def DeleteCookies(self):
cookieManager = self.mainBrowser.GetUserData("cookieManager")
if not cookieManager:
print("\nCookie manager not yet created! Visit http website first")
return
cookieManager.DeleteCookies(
"http://www.html-kit.com/tools/cookietester/",
"Created_Via_Python")
print("\nCookie deleted! Visit html-kit cookietester to see the result")
class CookieVisitor:
def Visit(self, cookie, count, total, deleteCookie):
if count == 0:
print("\nCookieVisitor.Visit(): total cookies: %s" % total)
print("\nCookieVisitor.Visit(): cookie:")
print(cookie.Get())
# True to continue visiting cookies
return True
class WebRequestClient:
def OnStateChange(self, webRequest, state):
stateName = "unknown"
for key, value in cefpython.WebRequest.State.iteritems():
if value == state:
stateName = key
print("\nWebRequestClient::OnStateChange(): state = %s" % stateName)
def OnRedirect(self, webRequest, request, response):
print("\nWebRequestClient::OnRedirect(): url = %s" % (
request.GetUrl()[:80]))
def OnHeadersReceived(self, webRequest, response):
print("\nWebRequestClient::OnHeadersReceived(): headers = %s" % (
response.GetHeaderMap()))
def OnProgress(self, webRequest, bytesSent, totalBytesToBeSent):
print("\nWebRequestClient::OnProgress(): bytesSent = %s, "
"totalBytesToBeSent = %s" % (bytesSent, totalBytesToBeSent))
def OnData(self, webRequest, data):
print("\nWebRequestClient::OnData(): data:")
print("-" * 60)
print(data)
print("-" * 60)
def OnError(self, webRequest, errorCode):
print("\nWebRequestClient::OnError(): errorCode = %s" % errorCode)
class ContentFilterHandler:
def OnData(self, data, substitute_data):
if data == "body { color: red; }":
substitute_data.SetData("body { color: green; }")
def OnDrain(self, remainder):
remainder.SetData("body h3 { color: orange; }")
class ClientHandler:
# --------------------------------------------------------------------------
# RequestHandler
# --------------------------------------------------------------------------
contentFilter = None
def OnBeforeBrowse(self, browser, frame, request, navType, isRedirect):
# - frame.GetUrl() returns current url
# - request.GetUrl() returns new url
# - Return true to cancel the navigation or false to allow
# the navigation to proceed.
# - Modifying headers or post data can be done only in
# OnBeforeResourceLoad()
print("\nOnBeforeBrowse(): request.GetUrl() = %s, "
"request.GetHeaderMap(): %s" % (
request.GetUrl()[:80], request.GetHeaderMap()))
if request.GetMethod() == "POST":
print("\nOnBeforeBrowse(): POST data: %s" % (
request.GetPostData()))
def OnBeforeResourceLoad(self, browser, request, redirectUrl,
streamReader, response, loadFlags):
print("\nOnBeforeResourceLoad(): request.GetUrl() = %s" % (
request.GetUrl()[:80]))
if request.GetMethod() == "POST":
if request.GetUrl().startswith(
"https://accounts.google.com/ServiceLogin"):
postData = request.GetPostData()
postData["Email"] = "--changed via python"
request.SetPostData(postData)
print("\nOnBeforeResourceLoad(): modified POST data: %s" % (
request.GetPostData()))
if request.GetUrl().endswith("replace-on-the-fly.css"):
print("\nOnBeforeResourceLoad(): replacing css on the fly")
response.SetStatus(200)
response.SetStatusText("OK")
response.SetMimeType("text/css")
streamReader.SetData("body { color: red; }")
def OnResourceRedirect(self, browser, oldUrl, newUrl):
print("\nOnResourceRedirect(): oldUrl: %s, newUrl: %s" % (
oldUrl, newUrl[0]))
def OnResourceResponse(self, browser, url, response, contentFilter):
print("\nOnResourceResponse(): url = %s, headers = %s" % (
url[:80], response.GetHeaderMap()))
if url.endswith("content-filter/replace-on-the-fly.css"):
print("\nOnResourceResponse(): setting contentFilter handler")
contentFilter.SetHandler(ContentFilterHandler())
# Must keep the reference to contentFilter otherwise
# ContentFilterHandler callbacks won't be called.
self.contentFilter = contentFilter
def GetCookieManager(self, browser, mainUrl):
# Create unique cookie manager for each browser.
cookieManager = browser.GetUserData("cookieManager")
if cookieManager:
return cookieManager
else:
cookieManager = cefpython.CookieManager.CreateManager("")
browser.SetUserData("cookieManager", cookieManager)
return cookieManager
# --------------------------------------------------------------------------
# DragHandler
# --------------------------------------------------------------------------
def OnDragStart(self, browser, dragData, mask):
maskNames = ""
for key, value in cefpython.Drag.Operation.iteritems():
if value and (value & mask) == value:
maskNames += " "+key
print("\nOnDragStart(): mask=%s" % maskNames)
print(" IsLink(): %s" % dragData.IsLink())
print(" IsFragment(): %s" % dragData.IsFragment())
print(" IsFile(): %s" % dragData.IsFile())
print(" GetLinkUrl(): %s" % dragData.GetLinkUrl())
print(" GetLinkTitle(): %s" % dragData.GetLinkTitle())
print(" GetLinkMetadata(): %s" % dragData.GetLinkMetadata())
print(" GetFragmentText(): %s" % dragData.GetFragmentText())
print(" GetFragmentHtml(): %s" % dragData.GetFragmentHtml())
print(" GetFragmentBaseUrl(): %s" % dragData.GetFragmentBaseUrl())
print(" GetFile(): %s" % dragData.GetFile())
print(" GetFiles(): %s" % dragData.GetFiles())
# Returning True on Linux causes segmentation fault,
# reported the bug here:
# http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=10693
# Not being able to cancel a drag event is a problem
# only when a link or a folder is dragged, as this will
# cause loading the link or the folder in the browser window.
# When dragging text/html or a file it is not a problem, as
# it does not lead to browser navigating.
if platform.system() == "Windows":
# Return true to cancel the drag event.
return True
else:
return False
def OnDragEnter(self, browser, dragData, mask):
maskNames = ""
for key, value in cefpython.Drag.Operation.iteritems():
if value and (value & mask) == value:
maskNames += " "+key
print("\nOnDragEnter(): mask=%s" % maskNames)
print(" IsLink(): %s" % dragData.IsLink())
print(" IsFragment(): %s" % dragData.IsFragment())
print(" IsFile(): %s" % dragData.IsFile())
print(" GetLinkUrl(): %s" % dragData.GetLinkUrl())
print(" GetLinkTitle(): %s" % dragData.GetLinkTitle())
print(" GetLinkMetadata(): %s" % dragData.GetLinkMetadata())
print(" GetFragmentText(): %s" % dragData.GetFragmentText())
print(" GetFragmentHtml(): %s" % dragData.GetFragmentHtml())
print(" GetFragmentBaseUrl(): %s" % dragData.GetFragmentBaseUrl())
print(" GetFile(): %s" % dragData.GetFile())
print(" GetFiles(): %s" % dragData.GetFiles())
# Returning True on Linux causes segmentation fault,
# reported the bug here:
# http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=10693
# Not being able to cancel a drag event is a problem
# only when a link or a folder is dragged, as this will
# cause loading the link or the folder in the browser window.
# When dragging text/html or a file it is not a problem, as
# it does not lead to browser navigating.
if platform.system() == "Windows":
# Return true to cancel the drag event.
return True
else:
return False
# --------------------------------------------------------------------------
# DownloadHandler
# --------------------------------------------------------------------------
downloadHandler = None
def GetDownloadHandler(self, browser, mimeType, filename, contentLength):
# Close the browser window if it is a popup with
# no other document contents.
if browser.IsPopup() and not browser.HasDocument():
browser.CloseBrowser()
# The reference to DownloadHandler must be kept alive
# while download proceeds.
if self.downloadHandler and self.downloadHandler.downloading:
print("\nDownload is already in progress")
return False
self.downloadHandler = DownloadHandler(mimeType, filename,
contentLength)
return self.downloadHandler
class DownloadHandler:
mimeType = ""
filename = ""
contentLength = -1 # -1 means that file size was not provided.
fp = None
downloadsDir = "./downloads"
alreadyDownloaded = 0
downloading = False
def __init__(self, mimeType, filename, contentLength):
self.downloading = True
if not os.path.exists(self.downloadsDir):
os.mkdir(self.downloadsDir)
filename = filename.strip()
if not len(filename):
filename = self.GetUniqueFilename()
filename = self.GetSafeFilename(filename)
print("\nDownloadHandler() created")
print("mimeType: %s" % mimeType)
print("filename: %s" % filename)
print("contentLength: %s" % contentLength)
# Append ".downloading" to the filename, in OnComplete()
# when download finishes get rid of this extension.
filename += ".downloading"
if os.path.exists(self.downloadsDir+"/"+filename):
# If the last download did not succeed, the
# "xxx.downloading" might still be there.
os.remove(self.downloadsDir+"/"+filename)
self.mimeType = mimeType
self.filename = filename
self.contentLength = contentLength
self.fp = open(self.downloadsDir+"/"+filename, "wb")
def GetSafeFilename(self, filename):
# TODO:
# - remove any unsafe characters (".." or "/" or "\" and
# others), the safest way is to have a regexp with a list
# safe characters. The dots ".." is a special case that
# needs to be treated separately.
if os.path.exists(self.downloadsDir+"/"+filename):
filename = self.GetUniqueFilename()[:4]+"_"+filename
assert not os.path.exists(self.downloadsDir+"/"+filename), (
"File aready exists")
return filename
def GetUniqueFilename(self):
# The filename may be empty, in that case generate
# an unique name.
# TODO:
# - guess the extension using the mimeType (but mimeType
# may also be empty), "text/css" => ".css".
return str(uuid.uuid4()).replace("-", "")[:16]
def OnData(self, data):
# TODO: display progress in percentage or/and KiB/MiB.
if self.alreadyDownloaded == 0:
sys.stdout.write("Download progress: ")
sys.stdout.write(".")
sys.stdout.flush()
self.alreadyDownloaded += len(data)
self.fp.write(data)
# time.sleep(1) # Let's make the progress a bit slower (if cached)
# Return True to continue receiving data, False to cancel.
return True
def OnComplete(self):
sys.stdout.write("\n")
sys.stdout.flush()
self.fp.close()
currentFile = self.downloadsDir+"/"+self.filename
newFilename = re.sub(".downloading$", "", self.filename)
os.rename(self.downloadsDir+"/"+self.filename,
self.downloadsDir+"/"+newFilename)
self.downloading = False
print("\nDownload complete!")
print("Total downloaded: %s" % self.PrettyBytes(
self.alreadyDownloaded))
print("See the 'downloads' directory.")
def PrettyBytes(self, bytes):
KiB = 1024
return "%.3g KiB" % (bytes / KiB)
class MyApp(wx.App):
timer = None
timerID = 1
def OnInit(self):
if not USE_EVT_IDLE:
self.CreateTimer()
frame = MainFrame()
self.SetTopWindow(frame)
frame.Show()
return True
def CreateTimer(self):
# See "Making a render loop":
# http://wiki.wxwidgets.org/Making_a_render_loop
# Another approach is to use EVT_IDLE in MainFrame,
# see which one fits you better.
self.timer = wx.Timer(self, self.timerID)
self.timer.Start(10) # 10ms
wx.EVT_TIMER(self, self.timerID, self.OnTimer)
def OnTimer(self, event):
cefpython.MessageLoopWork()
def OnExit(self):
# When app.MainLoop() returns, MessageLoopWork() should
# not be called anymore.
if not USE_EVT_IDLE:
self.timer.Stop()
if __name__ == '__main__':
sys.excepthook = ExceptHook
# cefpython.g_debug = True
# cefpython.g_debugFile = GetApplicationPath("debug.log")
settings = {
"log_severity": cefpython.LOGSEVERITY_INFO,
"log_file": GetApplicationPath("debug.log"),
"release_dcheck_enabled": True # Enable only when debugging.
}
cefpython.Initialize(settings)
print('wx.version=%s' % wx.version())
app = MyApp(False)
app.MainLoop()
# Let wx.App destructor do the cleanup before calling cefpython.Shutdown().
del app
cefpython.Shutdown()