def createBrowser():
winId = int(sys.argv[1])
windowInfo = cef.WindowInfo()
windowInfo.SetAsChild(winId)
settings = {}
settings["context_menu"] = {
"enabled": False,
"navigation": False, # Back, Forward, Reload
"print": False,
"view_source": False,
"external_browser": False, # Open in external browser
"devtools": False, # Developer Tools
}
cef.Initialize(settings)
browser = cef.CreateBrowserSync(windowInfo, url="https://www.baidu.com")
port = int(sys.argv[2])
conn = rpyc.connect('localhost', port)
while True:
url = conn.root.loadUrl()
if url and url != browser.GetUrl():
browser.LoadUrl(url)
elif conn.root.resizeCall():
cef.WindowUtils.OnSize(winId, 0, 0, 0)
cef.MessageLoopWork()
cef.Shutdown()
def render(self, context):
cef.MessageLoopWork()
if self.handler.texture_ready:
self.batch.begin(context)
self.batch.draw(self.handler.texture, 0, 0)
return self.batch.end()
return []
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.
cefpython.MessageLoopWork()
def run_message_loop():
# Run message loop for some time.
# noinspection PyTypeChecker
for i in range(MESSAGE_LOOP_RANGE):
cef.MessageLoopWork()
time.sleep(0.01)
subtest_message("cef.MessageLoopWork() ok")
def message_loop(self):
self.cefstream.get_logger().info("Calling message loop")
while self.running:
cef.MessageLoopWork()
self.shutdown_cef()
def _cef_message_loop(self, task):
cefpython.MessageLoopWork()
if self.use_mouse and base.mouseWatcherNode.has_mouse():
posx, posy = self._get_mouse_pos()
self.browser.SendMouseMoveEvent(posx, posy, mouseLeave=False)
return task.cont
async def run_async(url,
title="Pytigon",
parent_win=None,
x=200,
y=200,
width=1024,
height=768):
def py_function(value, js_callback):
url = value[0]
params = value[1]
url2 = url.replace("file:///home/sch/prj/pytigon/pytigon",
"http://127.0.0.2")
print(url2, params)
print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA2")
# print(url, url2)
ret = request(url2 + "/", params)
# print(ret.str())
print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA3")
# ret = "Hello world!"
ret = (
"""<base href="file:///home/sch/prj/pytigon/pytigon/" target="_blank">"""
+ ret.str())
ret = ret.replace(
"window.BASE_PATH = '/'",
"window.BASE_PATH = 'file:///home/sch/prj/pytigon/pytigon/'",
)
js_callback.Call(ret, py_callback)
def py_callback(value):
print("Value sent from Javascript: " + value)
browser, client_handler = create_browser(None, title, parent_win, x, y,
width, height)
bindings = cef.JavascriptBindings()
bindings.SetFunction("py_function", py_function)
bindings.SetFunction("py_callback", py_callback)
browser.SetJavascriptBindings(bindings)
for i in range(0, 10):
cef.MessageLoopWork()
await asyncio.sleep(0.01)
browser.LoadUrl(url)
async def loop():
nonlocal client_handler
while not client_handler.close:
cef.MessageLoopWork()
await asyncio.sleep(0.01)
await loop()
del browser
def _cef_message_loop(self, task):
cefpython.MessageLoopWork()
self.browser.SendFocusEvent(True)
if self.use_mouse and base.mouseWatcherNode.has_mouse():
mouse = base.mouseWatcherNode.getMouse()
rx, ry = mouse.get_x(), mouse.get_y()
x = (rx + 1.0) / 2.0 * self._cef_texture.get_x_size()
y = (ry + 1.0) / 2.0 * self._cef_texture.get_y_size()
y = self._cef_texture.get_y_size() - y
self.browser.SendMouseMoveEvent(x, y, mouseLeave=False)
return task.cont
def start(self):
ret = None
self.update_time = time.time()
self.connect_time = time.time()
while True:
# NOTE 刷新延迟 官方建议要有 10ms
if time.time() - self.update_time < .01: continue
self.update_time = time.time()
cef.MessageLoopWork()
# if time.time() - self.connect_time < .1:continue
# self.connect_time = time.time()
try:
client, addr = self.s.accept()
except:
continue
data = client.recv(1024)
# NOTE change to specfic type
arg_list = [arg for arg in data.split(";")]
args = self.browser_dict.get(arg_list[1])
func_name = arg_list[0]
if func_name == "stop":
break
elif func_name == "createBrowser" and not args:
url = arg_list[2]
winId = int(arg_list[1])
# NOTE 创建浏览器
UUID = arg_list[3]
windowInfo = cef.WindowInfo()
windowInfo.SetAsChild(winId)
browser = cef.CreateBrowserSync(windowInfo,
self.browser_settings,
url=url)
self.browser_dict[UUID] = (browser, winId)
elif func_name in self.callback_dict and args:
browser, winId = args
ret = self.callback_dict[func_name](browser, winId,
*arg_list[2:])
else:
continue
client.send(str(ret))
client.close()
self.s.close()
cef.Shutdown()
def main():
winId = sys.argv[1]
windowInfo = cef.WindowInfo()
# print cef
# print dir(cef)
# print windowInfo
# print dir(windowInfo)
windowInfo.SetAsChild(int(winId))
settings = {}
settings["browser_subprocess_path"] = "%s/%s" % (cef.GetModuleDirectory(),
"subprocess")
settings["context_menu"] = {
"enabled": False,
"navigation": False, # Back, Forward, Reload
"print": False,
"view_source": False,
"external_browser": False, # Open in external browser
"devtools": False, # Developer Tools
}
cef.Initialize(settings)
# # browser = cef.CreateBrowserSync(url="https://www.baidu.com",
browser = cef.CreateBrowserSync(windowInfo,
url="https://www.baidu.com",
window_title="Hello World!")
print browser
print dir(browser)
# # print browser.GetWindowHandle()
# # print dir(browser.GetWindowHandle())
# cef.WindowUtils.OnSize(int(winId), 0, 0, 0)
# set_interval(lambda: cef.WindowUtils.OnSize(int(winId), 0, 0, 0),.2)
while True:
# time.sleep(0.1)
cef.MessageLoopWork()
cef.Shutdown()
def _message_loop_work(self, *_):
"""Get called every frame."""
self.count += 1
# print(self.count)
cef.MessageLoopWork()
self.on_mouse_move_emulate()
# From Kivy docs:
# Clock.schedule_once(my_callback, 0) # call after the next frame
# Clock.schedule_once(my_callback, -1) # call before the next frame
# When scheduling "after the next frame" Kivy calls _message_loop_work
# in about 13ms intervals. We use a small trick to make this 6ms
# interval by scheduling it alternately before and after the next
# frame. This gives better User Experience when scrolling.
# See Issue #240 for more details on OSR performance.
if self.count % 2 == 0:
Clock.schedule_once(self._message_loop_work, 0)
else:
Clock.schedule_once(self._message_loop_work, -1)
def main():
url = sys.argv[1]
cefpython.Initialize(settings, switches)
windowInfo = cefpython.WindowInfo()
windowInfo.SetAsOffscreen(0)
browserSettings = {
# Remove same-origin policy.
"web_security_disabled": False,
}
browser = cefpython.CreateBrowserSync(windowInfo,
browserSettings,
navigateUrl=url)
browser.SendFocusEvent(True)
finished_cv = threading.Condition()
clientHandler = ClientHandler(browser, finished_cv)
browser.SetClientHandler(clientHandler)
finished_cv.acquire()
# Run until browser terminates us. TODO: WDT if something goes wrong when parsing?
while True:
finished_cv.wait(MESSAGE_LOOP_CALL_FREQUENCY_SECS)
if clientHandler.okToQuit:
break
else:
cefpython.MessageLoopWork()
# Delete all browser refererences to ensure cookies flushed to disk etc.
del clientHandler.browser
del browser
cefpython.Shutdown()
def main():
parser = argparse.ArgumentParser(
description='PySDL2 / cefpython example',
add_help=True
)
parser.add_argument(
'-v',
'--verbose',
help='Turn on debug info',
dest='verbose',
action='store_true'
)
parser.add_argument(
'-r',
'--renderer',
help='Specify hardware or software rendering',
default='software',
dest='renderer',
choices=['software', 'hardware']
)
args = parser.parse_args()
logLevel = logging.INFO
if args.verbose:
logLevel = logging.DEBUG
logging.basicConfig(
format='[%(filename)s %(levelname)s]: %(message)s',
level=logLevel
)
logging.info("Using PySDL2 %s" % sdl2.__version__)
version = sdl2.SDL_version()
sdl2.SDL_GetVersion(version)
logging.info(
"Using SDL2 %s.%s.%s" % (version.major, version.minor, version.patch)
)
# The following variables control the dimensions of the window
# and browser display area
width = 800
height = 600
# headerHeight is useful for leaving space for controls
# at the top of the window (future implementation?)
headerHeight = 0
browserHeight = height - headerHeight
browserWidth = width
# Mouse wheel fudge to enhance scrolling
scrollEnhance = 40
# desired frame rate
frameRate = 100
# Initialise CEF for offscreen rendering
sys.excepthook = cef.ExceptHook
switches = {
# Tweaking OSR performance by setting the same Chromium flags
# as in upstream cefclient (Issue #240).
"disable-surfaces": "",
"disable-gpu": "",
"disable-gpu-compositing": "",
"enable-begin-frame-scheduling": "",
}
browser_settings = {
# Tweaking OSR performance (Issue #240)
"windowless_frame_rate": frameRate
}
cef.Initialize(settings={"windowless_rendering_enabled": True},
switches=switches)
logging.debug("cef initialised")
window_info = cef.WindowInfo()
window_info.SetAsOffscreen(0)
# Initialise SDL2 for video (add other init constants if you
# require other SDL2 functionality e.g. mixer,
# TTF, joystick etc.
sdl2.SDL_Init(sdl2.SDL_INIT_VIDEO)
logging.debug("SDL2 initialised")
# Create the window
window = sdl2.video.SDL_CreateWindow(
'cefpython3 SDL2 Demo',
sdl2.video.SDL_WINDOWPOS_UNDEFINED,
sdl2.video.SDL_WINDOWPOS_UNDEFINED,
width,
height,
0
)
# Define default background colour (black in this case)
backgroundColour = sdl2.SDL_Color(0, 0, 0)
renderer = None
if args.renderer == 'hardware':
# Create the renderer using hardware acceleration
logging.info("Using hardware rendering")
renderer = sdl2.SDL_CreateRenderer(
window,
-1,
sdl2.render.SDL_RENDERER_ACCELERATED
)
else:
# Create the renderer using software acceleration
logging.info("Using software rendering")
renderer = sdl2.SDL_CreateRenderer(
window,
-1,
sdl2.render.SDL_RENDERER_SOFTWARE
)
# Set-up the RenderHandler, passing in the SDL2 renderer
renderHandler = RenderHandler(renderer, width, height - headerHeight)
# Create the browser instance
browser = cef.CreateBrowserSync(window_info,
url="https://www.google.com/",
settings=browser_settings)
browser.SetClientHandler(LoadHandler())
browser.SetClientHandler(renderHandler)
# Must call WasResized at least once to let know CEF that
# viewport size is available and that OnPaint may be called.
browser.SendFocusEvent(True)
browser.WasResized()
# Begin the main rendering loop
running = True
# FPS debug variables
frames = 0
logging.debug("beginning rendering loop")
resetFpsTime = True
fpsTime = 0
while running:
# record when we started drawing this frame
startTime = sdl2.timer.SDL_GetTicks()
if resetFpsTime:
fpsTime = sdl2.timer.SDL_GetTicks()
resetFpsTime = False
# Convert SDL2 events into CEF events (where appropriate)
events = sdl2.ext.get_events()
for event in events:
if (event.type == sdl2.SDL_QUIT
or (event.type == sdl2.SDL_KEYDOWN
and event.key.keysym.sym == sdl2.SDLK_ESCAPE)):
running = False
logging.debug("SDL2 QUIT event")
break
if event.type == sdl2.SDL_MOUSEBUTTONDOWN:
if event.button.button == sdl2.SDL_BUTTON_LEFT:
if event.button.y > headerHeight:
logging.debug(
"SDL2 MOUSEBUTTONDOWN event (left button)"
)
# Mouse click triggered in browser region
browser.SendMouseClickEvent(
event.button.x,
event.button.y - headerHeight,
cef.MOUSEBUTTON_LEFT,
False,
1
)
elif event.type == sdl2.SDL_MOUSEBUTTONUP:
if event.button.button == sdl2.SDL_BUTTON_LEFT:
if event.button.y > headerHeight:
logging.debug("SDL2 MOUSEBUTTONUP event (left button)")
# Mouse click triggered in browser region
browser.SendMouseClickEvent(
event.button.x,
event.button.y - headerHeight,
cef.MOUSEBUTTON_LEFT,
True,
1
)
elif event.type == sdl2.SDL_MOUSEMOTION:
if event.motion.y > headerHeight:
# Mouse move triggered in browser region
browser.SendMouseMoveEvent(event.motion.x,
event.motion.y - headerHeight,
False)
elif event.type == sdl2.SDL_MOUSEWHEEL:
logging.debug("SDL2 MOUSEWHEEL event")
# Mouse wheel event
x = event.wheel.x
if x < 0:
x -= scrollEnhance
else:
x += scrollEnhance
y = event.wheel.y
if y < 0:
y -= scrollEnhance
else:
y += scrollEnhance
browser.SendMouseWheelEvent(0, 0, x, y)
elif event.type == sdl2.SDL_TEXTINPUT:
# Handle text events to get actual characters typed rather
# than the key pressed.
logging.debug("SDL2 TEXTINPUT event: %s" % event.text.text)
keycode = ord(event.text.text)
key_event = {
"type": cef.KEYEVENT_CHAR,
"windows_key_code": keycode,
"character": keycode,
"unmodified_character": keycode,
"modifiers": cef.EVENTFLAG_NONE
}
browser.SendKeyEvent(key_event)
key_event = {
"type": cef.KEYEVENT_KEYUP,
"windows_key_code": keycode,
"character": keycode,
"unmodified_character": keycode,
"modifiers": cef.EVENTFLAG_NONE
}
browser.SendKeyEvent(key_event)
elif event.type == sdl2.SDL_KEYDOWN:
# Handle key down events for non-text keys
logging.debug("SDL2 KEYDOWN event")
if event.key.keysym.sym == sdl2.SDLK_RETURN:
keycode = event.key.keysym.sym
key_event = {
"type": cef.KEYEVENT_CHAR,
"windows_key_code": keycode,
"character": keycode,
"unmodified_character": keycode,
"modifiers": cef.EVENTFLAG_NONE
}
browser.SendKeyEvent(key_event)
elif event.key.keysym.sym in [
sdl2.SDLK_BACKSPACE,
sdl2.SDLK_DELETE,
sdl2.SDLK_LEFT,
sdl2.SDLK_RIGHT,
sdl2.SDLK_UP,
sdl2.SDLK_DOWN,
sdl2.SDLK_HOME,
sdl2.SDLK_END
]:
keycode = get_key_code(event.key.keysym.sym)
if keycode is not None:
key_event = {
"type": cef.KEYEVENT_RAWKEYDOWN,
"windows_key_code": keycode,
"character": keycode,
"unmodified_character": keycode,
"modifiers": cef.EVENTFLAG_NONE
}
browser.SendKeyEvent(key_event)
elif event.type == sdl2.SDL_KEYUP:
# Handle key up events for non-text keys
logging.debug("SDL2 KEYUP event")
if event.key.keysym.sym in [
sdl2.SDLK_RETURN,
sdl2.SDLK_BACKSPACE,
sdl2.SDLK_DELETE,
sdl2.SDLK_LEFT,
sdl2.SDLK_RIGHT,
sdl2.SDLK_UP,
sdl2.SDLK_DOWN,
sdl2.SDLK_HOME,
sdl2.SDLK_END
]:
keycode = get_key_code(event.key.keysym.sym)
if keycode is not None:
key_event = {
"type": cef.KEYEVENT_KEYUP,
"windows_key_code": keycode,
"character": keycode,
"unmodified_character": keycode,
"modifiers": cef.EVENTFLAG_NONE
}
browser.SendKeyEvent(key_event)
# Clear the renderer
sdl2.SDL_SetRenderDrawColor(
renderer,
backgroundColour.r,
backgroundColour.g,
backgroundColour.b,
255
)
sdl2.SDL_RenderClear(renderer)
# Tell CEF to update which will trigger the OnPaint
# method of the RenderHandler instance
cef.MessageLoopWork()
# Update display
sdl2.SDL_RenderCopy(
renderer,
renderHandler.texture,
None,
sdl2.SDL_Rect(0, headerHeight, browserWidth, browserHeight)
)
sdl2.SDL_RenderPresent(renderer)
# FPS debug code
frames += 1
if sdl2.timer.SDL_GetTicks() - fpsTime > 1000:
logging.debug("FPS: %d" % frames)
frames = 0
resetFpsTime = True
# regulate frame rate
if sdl2.timer.SDL_GetTicks() - startTime < 1000.0 / frameRate:
sdl2.timer.SDL_Delay(
(1000 / frameRate) - (sdl2.timer.SDL_GetTicks() - startTime)
)
# User exited
exit_app()
def OnIdle(self, event):
cefpython.MessageLoopWork()
def OnTimer(self):
if self.exiting:
return False
from cefpython3 import cefpython
cefpython.MessageLoopWork()
return True
def on_timer(self):
if self.exiting:
return False
cef.MessageLoopWork()
return True
def OnTimer(self, event):
cefpython.MessageLoopWork()
def test_main(self):
"""Main entry point."""
# All this code must run inside one single test, otherwise strange
# things happen.
print("")
print("CEF Python {ver}".format(ver=cef.__version__))
print("Python {ver}".format(ver=sys.version[:6]))
# Test initialization of CEF
settings = {
"debug": False,
"log_severity": cef.LOGSEVERITY_ERROR,
"log_file": "",
}
if "--debug" in sys.argv:
settings["debug"] = True
settings["log_severity"] = cef.LOGSEVERITY_INFO
cef.Initialize(settings)
subtest_message("cef.Initialize() ok")
# Test global handler
global_handler = GlobalHandler(self)
cef.SetGlobalClientCallback("OnAfterCreated",
global_handler._OnAfterCreated)
subtest_message("cef.SetGlobalClientCallback() ok")
# Test creation of browser
browser = cef.CreateBrowserSync(url=g_datauri)
self.assertIsNotNone(browser, "Browser object")
subtest_message("cef.CreateBrowserSync() ok")
# Test other handlers: LoadHandler, DisplayHandler etc.
client_handlers = [LoadHandler(self), DisplayHandler(self)]
for handler in client_handlers:
browser.SetClientHandler(handler)
subtest_message("browser.SetClientHandler() ok")
# Test javascript bindings
external = External(self)
bindings = cef.JavascriptBindings(bindToFrames=False,
bindToPopups=False)
bindings.SetFunction("test_function", external.test_function)
bindings.SetProperty("test_property1", external.test_property1)
bindings.SetProperty("test_property2", external.test_property2)
# Property with a function value can also be bound. CEF Python
# supports passing functions as callbacks when called from
# javascript, and as a side effect any value and in this case
# a property can also be a function.
bindings.SetProperty("test_property3_function",
external.test_property3_function)
bindings.SetProperty("cefpython_version", cef.GetVersion())
bindings.SetObject("external", external)
browser.SetJavascriptBindings(bindings)
subtest_message("browser.SetJavascriptBindings() ok")
# Run message loop for some time.
# noinspection PyTypeChecker
for i in range(MESSAGE_LOOP_RANGE):
cef.MessageLoopWork()
time.sleep(0.01)
subtest_message("cef.MessageLoopWork() ok")
# Test browser closing. Remember to clean reference.
browser.CloseBrowser(True)
del browser
subtest_message("browser.CloseBrowser() ok")
# Give it some time to close before calling shutdown.
# noinspection PyTypeChecker
for i in range(25):
cef.MessageLoopWork()
time.sleep(0.01)
# Automatic check of asserts in handlers and in external
for obj in [] + client_handlers + [global_handler, external]:
test_for_True = False # Test whether asserts are working correctly
for key, value in obj.__dict__.items():
if key == "test_for_True":
test_for_True = True
continue
if "_True" in key:
self.assertTrue(
value,
"Check assert: " + obj.__class__.__name__ + "." + key)
subtest_message(obj.__class__.__name__ + "." +
key.replace("_True", "") + " ok")
elif "_False" in key:
self.assertFalse(
value,
"Check assert: " + obj.__class__.__name__ + "." + key)
subtest_message(obj.__class__.__name__ + "." +
key.replace("_False", "") + " ok")
self.assertTrue(test_for_True)
# Test shutdown of CEF
cef.Shutdown()
subtest_message("cef.Shutdown() ok")
# Display real number of tests there were run
print("\nRan " + str(g_subtests_ran) + " sub-tests in test_main")
sys.stdout.flush()
def on_timer(self, _):
if MAC:
cef.MessageLoop()
else:
cef.MessageLoopWork()
def message_loop_work(self):
cef.MessageLoopWork()
self.after(10, self.message_loop_work)
def onTimer(self):
try:
cefpython.MessageLoopWork()
except:
None
def do_message_loop_work(work_loops):
# noinspection PyTypeChecker
for i in range(work_loops):
cef.MessageLoopWork()
time.sleep(0.01)
def on_timer(self):
cef.MessageLoopWork()
return True
def MessageLoopTimer(event):
cefpython.MessageLoopWork()
def OnIdle(self, event):
"""Service CEF message loop when useTimer is False"""
cefpython.MessageLoopWork()
event.Skip()
def onTimer(self):
cef.MessageLoopWork()
def OnTimer(self):
if self.exiting:
return False
cefpython.MessageLoopWork()
return True
def on_timer(self, event):
cef.MessageLoopWork()
def on_timer(self, _):
cef.MessageLoopWork()
def cef_loop(*largs):
try:
cefpython.MessageLoopWork()
except Exception as e:
print("EXCEPTION IN CEF LOOP", e)
