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
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
|
# Copyright (C) 2006, Red Hat, Inc.
# Copyright (C) 2007, One Laptop Per Child
# Copyright (C) 2009, Tomeu Vizoso, Simon Schampijer
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import time
import re
from gettext import gettext as _
from gi.repository import GObject
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import Pango
from gi.repository import WebKit
from gi.repository import Soup
from sugar3 import env
from sugar3.activity import activity
from sugar3.graphics import style
from sugar3.graphics.icon import Icon
from widgets import BrowserNotebook
import globalhistory
import downloadmanager
_ZOOM_AMOUNT = 0.1
_LIBRARY_PATH = '/usr/share/library-common/index.html'
_WEB_SCHEMES = ['http', 'https', 'ftp', 'file', 'javascript', 'data',
'about', 'gopher', 'mailto']
_NON_SEARCH_REGEX = re.compile('''
(^localhost(\\.[^\s]+)?(:\\d+)?(/.*)?$|
^[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]$|
^::[0-9a-f:]*$| # IPv6 literals
^[0-9a-f:]+:[0-9a-f:]*$| # IPv6 literals
^[^\\.\s]+\\.[^\\.\s]+.*$| # foo.bar...
^https?://[^/\\.\s]+.*$|
^about:.*$|
^data:.*$|
^file:.*$)
''', re.VERBOSE)
class CommandListener(object):
def __init__(self, window):
self._window = window
def handleEvent(self, event):
if not event.isTrusted:
return
uri = event.originalTarget.ownerDocument.documentURI
if not uri.startswith('about:neterror?e=nssBadCert'):
return
cls = components.classes['@sugarlabs.org/add-cert-exception;1']
cert_exception = cls.createInstance(interfaces.hulahopAddCertException)
cert_exception.showDialog(self._window)
class TabbedView(BrowserNotebook):
__gtype_name__ = 'TabbedView'
__gsignals__ = {
'focus-url-entry': (GObject.SignalFlags.RUN_FIRST,
None,
([])),
}
def __init__(self):
BrowserNotebook.__init__(self)
self.props.show_border = False
self.props.scrollable = True
self.connect('size-allocate', self.__size_allocate_cb)
self.connect('page-added', self.__page_added_cb)
self.connect('page-removed', self.__page_removed_cb)
self.add_tab()
self._update_closing_buttons()
self._update_tab_sizes()
def normalize_or_autosearch_url(self, url):
"""Normalize the url input or return a url for search.
We use SoupURI as an indication of whether the value given in url
is not something we want to search; we only do that, though, if
the address has a web scheme, because SoupURI will consider any
string: as a valid scheme, and we will end up prepending http://
to it.
This code is borrowed from Epiphany.
url -- input string that can be normalized to an url or serve
as search
Return: a string containing a valid url
"""
def has_web_scheme(address):
if address == '':
return False
scheme, sep, after = address.partition(':')
if sep == '':
return False
return scheme in _WEB_SCHEMES
soup_uri = None
effective_url = None
if has_web_scheme(url):
try:
soup_uri = Soup.URI.new(url)
except TypeError:
pass
if soup_uri is None and not _NON_SEARCH_REGEX.match(url):
# If the string doesn't look like an URI, let's search it:
url_search = \
_('http://www.google.com/search?q=%s&ie=UTF-8&oe=UTF-8')
query_param = Soup.form_encode_hash({'q': url})
# [2:] here is getting rid of 'q=':
effective_url = url_search % query_param[2:]
else:
if has_web_scheme(url):
effective_url = url
else:
effective_url = 'http://' + url
return effective_url
def __size_allocate_cb(self, widget, allocation):
self._update_tab_sizes()
def __page_added_cb(self, notebook, child, pagenum):
self._update_closing_buttons()
self._update_tab_sizes()
def __page_removed_cb(self, notebook, child, pagenum):
if self.get_n_pages():
self._update_closing_buttons()
self._update_tab_sizes()
def __new_tab_cb(self, browser, url):
new_browser = self.add_tab(next_to_current=True)
new_browser.load_uri(url)
new_browser.grab_focus()
def add_tab(self, next_to_current=False):
browser = Browser()
browser.connect('new-tab', self.__new_tab_cb)
if next_to_current:
self._insert_tab_next(browser)
else:
self._append_tab(browser)
self.emit('focus-url-entry')
browser.load_uri('about:blank')
return browser
def _insert_tab_next(self, browser):
tab_page = TabPage(browser)
label = TabLabel(browser)
label.connect('tab-close', self.__tab_close_cb, tab_page)
next_index = self.get_current_page() + 1
self.insert_page(tab_page, label, next_index)
tab_page.show()
self.set_current_page(next_index)
def _append_tab(self, browser):
tab_page = TabPage(browser)
label = TabLabel(browser)
label.connect('tab-close', self.__tab_close_cb, tab_page)
self.append_page(tab_page, label)
tab_page.show()
self.set_current_page(-1)
def on_add_tab(self, gobject):
self.add_tab()
def __tab_close_cb(self, label, tab_page):
self.remove_page(self.page_num(tab_page))
tab_page.destroy()
def _update_tab_sizes(self):
"""Update ta widths based in the amount of tabs."""
n_pages = self.get_n_pages()
canvas_size = self.get_allocation()
# FIXME
# overlap_size = self.style_get_property('tab-overlap') * n_pages - 1
overlap_size = 0
allowed_size = canvas_size.width - overlap_size
tab_new_size = int(allowed_size * 1.0 / (n_pages + 1))
# Four tabs ensured:
tab_max_size = int(allowed_size * 1.0 / (5))
# Eight tabs ensured:
tab_min_size = int(allowed_size * 1.0 / (9))
if tab_new_size < tab_min_size:
tab_new_size = tab_min_size
elif tab_new_size > tab_max_size:
tab_new_size = tab_max_size
for page_idx in range(n_pages):
page = self.get_nth_page(page_idx)
label = self.get_tab_label(page)
label.update_size(tab_new_size)
def _update_closing_buttons(self):
"""Prevent closing the last tab."""
first_page = self.get_nth_page(0)
first_label = self.get_tab_label(first_page)
if self.get_n_pages() == 1:
first_label.hide_close_button()
else:
first_label.show_close_button()
def load_homepage(self):
browser = self.current_browser
if os.path.isfile(_LIBRARY_PATH):
browser.load_uri('file://' + _LIBRARY_PATH)
else:
default_page = os.path.join(activity.get_bundle_path(),
"data/index.html")
browser.load_uri('file://' + default_page)
def _get_current_browser(self):
if self.get_n_pages():
return self.get_nth_page(self.get_current_page()).browser
else:
return None
current_browser = GObject.property(type=object,
getter=_get_current_browser)
def get_history(self):
tab_histories = []
for index in xrange(0, self.get_n_pages()):
tab_page = self.get_nth_page(index)
tab_histories.append(tab_page.browser.get_history())
return tab_histories
def set_history(self, tab_histories):
if tab_histories and isinstance(tab_histories[0], dict):
# Old format, no tabs
tab_histories = [tab_histories]
while self.get_n_pages():
self.remove_page(self.get_n_pages() - 1)
for tab_history in tab_histories:
browser = Browser()
browser.connect('new-tab', self.__new_tab_cb)
self._append_tab(browser)
browser.set_history(tab_history)
Gtk.rc_parse_string('''
style "browse-tab-close" {
xthickness = 0
ythickness = 0
}
widget "*browse-tab-close" style "browse-tab-close"''')
class TabPage(Gtk.Overlay):
def __init__(self, browser):
GObject.GObject.__init__(self)
self._browser = browser
self._showing_load_status = False
self._requested_uri = None
link_info = Gtk.Label()
link_info.set_halign(Gtk.Align.START)
link_info.set_valign(Gtk.Align.END)
self.add_overlay(link_info)
link_info.show()
scrolled_window = Gtk.ScrolledWindow()
self.add(scrolled_window)
scrolled_window.show()
scrolled_window.add(browser)
browser.show()
browser.connect('hovering-over-link', self.__hovering_over_link_cb,
link_info)
browser.connect('notify::load-status', self.__load_status_cb,
link_info)
browser.connect('resource-request-starting',
self.__resource_request_starting_cb)
def _get_browser(self):
return self._browser
browser = GObject.property(type=object,
getter=_get_browser)
def __hovering_over_link_cb(self, webview, title, uri, link_info):
if self._showing_load_status:
return
if uri is None:
link_info.hide()
else:
link_info.set_text(uri)
link_info.show()
def __load_status_cb(self, webview, param, link_info):
status = webview.get_load_status()
if status <= WebKit.LoadStatus.COMMITTED:
if self._requested_uri is None:
link_info.set_text(_("Loading..."))
else:
link_info.set_text(_("Loading %s...") % self._requested_uri)
self._showing_load_status = True
link_info.show()
else:
self._showing_load_status = False
self._requested_uri = None
link_info.hide()
def __resource_request_starting_cb(self, webview, webframe, webresource,
request, response):
"""Set the request uri to be shown in the label overlay."""
self._requested_uri = request.get_uri()
class TabLabel(Gtk.HBox):
__gtype_name__ = 'TabLabel'
__gsignals__ = {
'tab-close': (GObject.SignalFlags.RUN_FIRST,
None,
([])),
}
def __init__(self, browser):
GObject.GObject.__init__(self)
browser.connect('notify::title', self.__title_changed_cb)
self._label = Gtk.Label(label=_('Untitled'))
self._label.set_ellipsize(Pango.EllipsizeMode.END)
self._label.set_alignment(0, 0.5)
self.pack_start(self._label, True, True, 0)
self._label.show()
close_tab_icon = Icon(icon_name='browse-close-tab')
button = Gtk.Button()
button.props.relief = Gtk.ReliefStyle.NONE
button.props.focus_on_click = False
icon_box = Gtk.HBox()
icon_box.pack_start(close_tab_icon, True, False, 0)
button.add(icon_box)
button.connect('clicked', self.__button_clicked_cb)
button.set_name('browse-tab-close')
self.pack_start(button, False, True, 0)
close_tab_icon.show()
icon_box.show()
button.show()
self._close_button = button
def update_size(self, size):
self.set_size_request(size, -1)
def hide_close_button(self):
self._close_button.hide()
def show_close_button(self):
self._close_button.show()
def __button_clicked_cb(self, button):
self.emit('tab-close')
def __title_changed_cb(self, widget, param):
if widget.props.title:
self._label.set_text(widget.props.title)
class Browser(WebKit.WebView):
__gtype_name__ = 'Browser'
__gsignals__ = {
'new-tab': (GObject.SignalFlags.RUN_FIRST,
None,
([str])),
}
CURRENT_SUGAR_VERSION = '0.96'
def __init__(self):
WebKit.WebView.__init__(self)
web_settings = self.get_settings()
identifier = ' Sugar Labs/' + self.CURRENT_SUGAR_VERSION
web_settings.props.user_agent += identifier
self.set_settings(web_settings)
# Reference to the global history and callbacks to handle it:
self._global_history = globalhistory.get_global_history()
self.connect('notify::load-status', self.__load_status_changed_cb)
self.connect('notify::title', self.__title_changed_cb)
self.connect('download-requested', self.__download_requested_cb)
self.connect('mime-type-policy-decision-requested',
self.__mime_type_policy_cb)
def get_history(self):
"""Return the browsing history of this browser."""
back_forward_list = self.get_back_forward_list()
if back_forward_list.get_back_length() == 0:
return ''
items_list = self._items_history_as_list(back_forward_list)
history = []
for item in items_list:
history.append({'url': item.get_uri(),
'title': item.get_title()})
return history
def set_history(self, history):
"""Restore the browsing history for this browser."""
back_forward_list = self.get_back_forward_list()
back_forward_list.clear()
for entry in history:
uri, title = entry['url'], entry['title']
history_item = WebKit.WebHistoryItem.new_with_data(uri, title)
back_forward_list.add_item(history_item)
def get_history_index(self):
"""Return the index of the current item in the history."""
back_forward_list = self.get_back_forward_list()
history_list = self._items_history_as_list(back_forward_list)
current_item = back_forward_list.get_current_item()
return history_list.index(current_item)
def set_history_index(self, index):
"""Go to the item in the history specified by the index."""
back_forward_list = self.get_back_forward_list()
if back_forward_list.get_back_length() != 0:
current_item = index - back_forward_list.get_back_length()
item = back_forward_list.get_nth_item(current_item)
if item is not None:
self.go_to_back_forward_item(item)
def _items_history_as_list(self, history):
"""Return a list with the items of a WebKit.WebBackForwardList."""
back_items = []
for n in reversed(range(1, history.get_back_length() + 1)):
item = history.get_nth_item(n * -1)
back_items.append(item)
current_item = [history.get_current_item()]
forward_items = []
for n in range(1, history.get_forward_length() + 1):
item = history.get_nth_item(n)
forward_items.append(item)
all_items = back_items + current_item + forward_items
return all_items
def get_source(self, async_cb, async_err_cb):
data_source = self.get_main_frame().get_data_source()
data = data_source.get_data()
if data_source.is_loading() or data is None:
async_err_cb()
temp_path = os.path.join(activity.get_activity_root(), 'instance')
file_path = os.path.join(temp_path, '%i' % time.time())
file_handle = file(file_path, 'w')
file_handle.write(data.str)
file_handle.close()
async_cb(file_path)
def open_new_tab(self, url):
self.emit('new-tab', url)
def __load_status_changed_cb(self, widget, param):
"""Add the url to the global history or update it."""
status = widget.get_load_status()
if status <= WebKit.LoadStatus.COMMITTED:
uri = self.get_uri()
self._global_history.add_page(uri)
def __title_changed_cb(self, widget, param):
"""Update title in global history."""
uri = self.get_uri()
if self.props.title is not None:
title = self.props.title
if not isinstance(title, unicode):
title = unicode(title, 'utf-8')
self._global_history.set_page_title(uri, title)
def __mime_type_policy_cb(self, webview, frame, request, mimetype,
policy_decision):
if not self.can_show_mime_type(mimetype):
policy_decision.download()
return True
def __download_requested_cb(self, browser, download):
downloadmanager.add_download(download, browser)
return True
class PopupDialog(Gtk.Window):
def __init__(self):
GObject.GObject.__init__(self)
self.set_type_hint(Gdk.WindowTypeHint.DIALOG)
border = style.GRID_CELL_SIZE
self.set_default_size(Gdk.Screen.width() - border * 2,
Gdk.Screen.height() - border * 2)
self.view = WebKit.WebView()
self.view.connect('notify::visibility', self.__notify_visibility_cb)
self.add(self.view)
self.view.realize()
def __notify_visibility_cb(self, web_view, pspec):
if self.view.props.visibility:
self.view.show()
self.show()
|