{{ message }}
forked from cztomczak/cefpython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathpyqt.py
More file actions
238 lines (207 loc) · 8.68 KB
/
Copy pathpyqt.py
File metadata and controls
238 lines (207 loc) · 8.68 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
# An example of embedding CEF browser in a PyQt4 application.
# Tested with PyQt "4.9.1".
# Command for installing PyQt4: "sudo apt-get install python-qt4".
# The official CEF Python binaries come with tcmalloc hook
# disabled. But if you've built custom binaries and kept tcmalloc
# hook enabled, then be aware that in such case it is required
# for the cefpython module to be the very first import in
# python scripts. See Issue 73 in the CEF Python Issue Tracker
# for more details.
import ctypes, os, sys
libcef_so = os.path.join(os.path.dirname(os.path.abspath(__file__)),\
'libcef.so')
if os.path.exists(libcef_so):
# Import local module
ctypes.CDLL(libcef_so, ctypes.RTLD_GLOBAL)
if 0x02070000 <= sys.hexversion < 0x03000000:
import cefpython_py27 as cefpython
else:
raise Exception("Unsupported python version: %s" % sys.version)
else:
# Import from package
from cefpython3 import cefpython
from PyQt4 import QtGui
from PyQt4 import QtCore
def GetApplicationPath(file=None):
import re, os, platform
# On Windows after downloading file and calling Browser.GoForward(),
# current working directory is set to %UserProfile%.
# Calling os.path.dirname(os.path.realpath(__file__))
# returns for eg. "C:\Users\user\Downloads". A solution
# is to cache path on first call.
if not hasattr(GetApplicationPath, "dir"):
if hasattr(sys, "frozen"):
dir = os.path.dirname(sys.executable)
elif "__file__" in globals():
dir = os.path.dirname(os.path.realpath(__file__))
else:
dir = os.getcwd()
GetApplicationPath.dir = dir
# 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)):
path = GetApplicationPath.dir + 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" (os._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("[pyqt.py] 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 MainWindow(QtGui.QMainWindow):
mainFrame = None
def __init__(self):
super(MainWindow, self).__init__(None)
self.createMenu()
self.mainFrame = MainFrame(self)
self.setCentralWidget(self.mainFrame)
self.resize(1024, 768)
self.setWindowTitle('PyQT CEF 3 example')
self.setFocusPolicy(QtCore.Qt.StrongFocus)
def createMenu(self):
menubar = self.menuBar()
filemenu = menubar.addMenu("&File")
filemenu.addAction(QtGui.QAction("Open", self))
filemenu.addAction(QtGui.QAction("Exit", self))
aboutmenu = menubar.addMenu("&About")
def focusInEvent(self, event):
# cefpython.WindowUtils.OnSetFocus(
# int(self.centralWidget().winId()), 0, 0, 0)
pass
def closeEvent(self, event):
self.mainFrame.browser.CloseBrowser()
class MainFrame(QtGui.QX11EmbedContainer):
browser = None
plug = None
def __init__(self, parent=None):
super(MainFrame, self).__init__(parent)
# QX11EmbedContainer provides an X11 window. The CEF
# browser can be embedded only by providing a GtkWidget
# pointer. So we're embedding a GtkPlug inside the X11
# window. In latest CEF trunk it is possible to embed
# the CEF browser by providing X11 window id. So it will
# be possible to remove the GTK dependency from CEF
# Python in the future.
gtkPlugPtr = cefpython.WindowUtils.gtk_plug_new(\
int(self.winId()))
print("[pyqt.py] MainFrame: GDK Native Window id: "+str(self.winId()))
print("[pyqt.py] MainFrame: GTK Plug ptr: "+str(gtkPlugPtr))
"""
Embedding GtkPlug is also possible with the pygtk module.
---------------------------------------------------------
self.plug = gtk.Plug(self.winId())
import re
m = re.search("GtkPlug at 0x(\w+)", str(self.plug))
hexId = m.group(1)
gtkPlugPtr = int(hexId, 16)
...
plug.show()
self.show()
---------------------------------------------------------
"""
windowInfo = cefpython.WindowInfo()
# Need to pass to CEF the GtkWidget* pointer
windowInfo.SetAsChild(gtkPlugPtr)
# Linux requires adding "file://" for local files,
# otherwise /home/some will be replaced as http://home/some
self.browser = cefpython.CreateBrowserSync(windowInfo,
browserSettings={},
navigateUrl="file://"+GetApplicationPath("example.html"))
cefpython.WindowUtils.gtk_widget_show(gtkPlugPtr)
self.show()
def moveEvent(self, event):
# cefpython.WindowUtils.OnSize(int(self.winId()), 0, 0, 0)
pass
def resizeEvent(self, event):
# cefpython.WindowUtils.OnSize(int(self.winId()), 0, 0, 0)
pass
class CefApplication(QtGui.QApplication):
timer = None
def __init__(self, args):
super(CefApplication, self).__init__(args)
self.createTimer()
def createTimer(self):
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.onTimer)
self.timer.start(10)
def onTimer(self):
# The proper way of doing message loop should be:
# 1. In createTimer() call self.timer.start(0)
# 2. In onTimer() call MessageLoopWork() only when
# QtGui.QApplication.instance()->hasPendingEvents()
# returns False.
# But there is a bug in Qt, hasPendingEvents() returns
# always true.
# (The behavior described above was tested on Windows
# with pyqt 4.8, maybe this is not true anymore,
# test it TODO)
cefpython.MessageLoopWork()
def stopTimer(self):
# Stop the timer after Qt message loop ended, calls to
# MessageLoopWork() should not happen anymore.
self.timer.stop()
if __name__ == '__main__':
print("[pyqt.py] PyQt version: %s" % QtCore.PYQT_VERSION_STR)
print("[pyqt.py] QtCore version: %s" % QtCore.qVersion())
# Intercept python exceptions. Exit app immediately when exception
# happens on any of the threads.
sys.excepthook = ExceptHook
# Application settings
settings = {
"debug": True, # cefpython debug messages in console and in log_file
"log_severity": cefpython.LOGSEVERITY_INFO, # LOGSEVERITY_VERBOSE
"log_file": GetApplicationPath("debug.log"), # Set to "" to disable.
# This directories must be set on Linux
"locales_dir_path": cefpython.GetModuleDirectory()+"/locales",
"resources_dir_path": cefpython.GetModuleDirectory(),
"browser_subprocess_path": "%s/%s" % (
cefpython.GetModuleDirectory(), "subprocess"),
}
# Command line switches set programmatically
switches = {
# "proxy-server": "socks5://127.0.0.1:8888",
# "enable-media-stream": "",
# "--invalid-switch": "" -> Invalid switch name
}
cefpython.Initialize(settings, switches)
app = CefApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
app.exec_()
app.stopTimer()
# Need to destroy QApplication(), otherwise Shutdown() fails.
# Unset main window also just to be safe.
del mainWindow
del app
cefpython.Shutdown()
You can’t perform that action at this time.