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import time
import Queue
import thread
import urllib
import gtk
import gobject
try:
import webkit
have_webkit = True
except:
have_webkit = False
class UseWebKit: pass
use = UseWebKit
class WebKitMethods(object):
@staticmethod
def create_browser():
return webkit.WebView()
@staticmethod
def inject_javascript(browser, script):
browser.execute_script(script)
@staticmethod
def connect_title_changed(browser, callback):
def callback_wrapper(widget, frame, title): callback(title)
browser.connect('title-changed', callback_wrapper)
@staticmethod
def open_uri(browser, html):
browser.load_html_string(html, 'file:///usr/lib/mageiawelcome/')
if use is UseWebKit:
implementation = WebKitMethods
def asynchronous_gtk_message(fun):
def worker((function, args, kwargs)):
apply(function, args, kwargs)
def fun2(*args, **kwargs):
gobject.idle_add(worker, (fun, args, kwargs))
return fun2
def synchronous_gtk_message(fun):
class NoResult: pass
def worker((R, function, args, kwargs)):
R.result = apply(function, args, kwargs)
def fun2(*args, **kwargs):
class R: result = NoResult
gobject.idle_add(worker, (R, fun, args, kwargs))
while R.result is NoResult: time.sleep(0.01)
return R.result
return fun2
def launch_browser(html, quit_function=None, echo=True):
window = gtk.Window()
browser = implementation.create_browser()
settings = browser.get_settings()
settings.set_property('enable-default-context-menu', False)
box = gtk.VBox(homogeneous=False, spacing=0)
window.add(box)
if quit_function is not None:
window.connect('destroy', quit_function)
box.pack_start(browser, expand=True, fill=True, padding=0)
window.set_icon_name('tools-wizard')
window.set_title(_('Welcome to Mageia!'))
window.set_position(gtk.WIN_POS_CENTER)
window.set_default_size(800, 600)
window.set_size_request(800, 600)
window.set_resizable(False)
window.show_all()
message_queue = Queue.Queue()
def title_changed(title):
if title != 'null': message_queue.put(title)
implementation.connect_title_changed(browser, title_changed)
implementation.open_uri(browser, html)
def web_recv():
if message_queue.empty():
return None
else:
msg = message_queue.get()
if echo: print '>>>', msg
return msg
def web_send(msg):
if echo: print '<<<', msg
asynchronous_gtk_message(implementation.inject_javascript)(browser, msg)
return browser, web_recv, web_send
def start_gtk_thread():
# Start GTK in its own thread:
gtk.gdk.threads_init()
thread.start_new_thread(gtk.main, ())
def kill_gtk_thread():
asynchronous_gtk_message(gtk.main_quit)()
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