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#!/usr/bin/env python
# Copyright (C) 2007, 2008, 2009 Jan Michael Alonzo <jmalonzo@gmai.com>
#
# 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
# TODO:
#
# * fix tab relabelling
# * search page interface
# * custom button - w/o margins/padding to make tabs thin
#
from gettext import gettext as _
import gobject
import gtk
import pango
import webkit
from inspector import Inspector
ABOUT_PAGE = """
<html><head><title>PyWebKitGtk - About</title></head><body>
<h1>Welcome to <code>webbrowser.py</code></h1>
<p><a
href="http://code.google.com/p/pywebkitgtk/">http://code.google.com/p/pywebkitgtk/</a><br/>
</p>
</body></html>
"""
class BrowserPage(webkit.WebView):
def __init__(self):
webkit.WebView.__init__(self)
settings = self.get_settings()
settings.set_property("enable-developer-extras", True)
# scale other content besides from text as well
self.set_full_content_zoom(True)
# make sure the items will be added in the end
# hence the reason for the connect_after
self.connect_after("populate-popup", self.populate_popup)
def populate_popup(self, view, menu):
# zoom buttons
zoom_in = gtk.ImageMenuItem(gtk.STOCK_ZOOM_IN)
zoom_in.connect('activate', zoom_in_cb, view)
menu.append(zoom_in)
zoom_out = gtk.ImageMenuItem(gtk.STOCK_ZOOM_OUT)
zoom_out.connect('activate', zoom_out_cb, view)
menu.append(zoom_out)
zoom_hundred = gtk.ImageMenuItem(gtk.STOCK_ZOOM_100)
zoom_hundred.connect('activate', zoom_hundred_cb, view)
menu.append(zoom_hundred)
printitem = gtk.ImageMenuItem(gtk.STOCK_PRINT)
menu.append(printitem)
printitem.connect('activate', print_cb, view)
page_properties = gtk.ImageMenuItem(gtk.STOCK_PROPERTIES)
menu.append(page_properties)
page_properties.connect('activate', page_properties_cb, view)
menu.append(gtk.SeparatorMenuItem())
aboutitem = gtk.ImageMenuItem(gtk.STOCK_ABOUT)
menu.append(aboutitem)
aboutitem.connect('activate', about_pywebkitgtk_cb, view)
menu.show_all()
return False
class TabLabel (gtk.HBox):
"""A class for Tab labels"""
__gsignals__ = {
"close": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
(gobject.TYPE_OBJECT,))
}
def __init__ (self, title, child):
"""initialize the tab label"""
gtk.HBox.__init__(self, False, 4)
self.title = title
self.child = child
self.label = gtk.Label(title)
self.label.props.max_width_chars = 30
self.label.set_ellipsize(pango.ELLIPSIZE_MIDDLE)
self.label.set_alignment(0.0, 0.5)
icon = gtk.image_new_from_stock(gtk.STOCK_ORIENTATION_PORTRAIT, gtk.ICON_SIZE_BUTTON)
close_image = gtk.image_new_from_stock(gtk.STOCK_CLOSE, gtk.ICON_SIZE_MENU)
close_button = gtk.Button()
close_button.set_relief(gtk.RELIEF_NONE)
close_button.connect("clicked", self._close_tab, child)
close_button.set_image(close_image)
self.pack_start(icon, False, False, 0)
self.pack_start(self.label, True, True, 0)
self.pack_start(close_button, False, False, 0)
self.set_data("label", self.label)
self.set_data("close-button", close_button)
self.connect("style-set", tab_label_style_set_cb)
def set_label (self, text):
"""sets the text of this label"""
self.label.set_label(text)
def _close_tab (self, widget, child):
self.emit("close", child)
def tab_label_style_set_cb (tab_label, style):
context = tab_label.get_pango_context()
metrics = context.get_metrics(tab_label.style.font_desc, context.get_language())
char_width = metrics.get_approximate_digit_width()
(width, height) = gtk.icon_size_lookup(gtk.ICON_SIZE_MENU)
tab_label.set_size_request(20 * pango.PIXELS(char_width) + 2 * width,
pango.PIXELS(metrics.get_ascent() +
metrics.get_descent()) + 8)
class ContentPane (gtk.Notebook):
__gsignals__ = {
"focus-view-title-changed": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
(gobject.TYPE_OBJECT, gobject.TYPE_STRING,)),
"new-window-requested": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
(gobject.TYPE_OBJECT,))
}
def __init__ (self):
"""initialize the content pane"""
gtk.Notebook.__init__(self)
self.props.scrollable = True
self.props.homogeneous = True
self.connect("switch-page", self._switch_page)
self.show_all()
self._hovered_uri = None
def load (self, text):
"""load the given uri in the current web view"""
child = self.get_nth_page(self.get_current_page())
view = child.get_child()
view.open(text)
def new_tab_with_webview (self, webview):
"""creates a new tab with the given webview as its child"""
self._construct_tab_view(webview)
def new_tab (self, url=None):
"""creates a new page in a new tab"""
# create the tab content
browser = BrowserPage()
self._construct_tab_view(browser, url)
def _construct_tab_view (self, web_view, url=None):
web_view.connect("hovering-over-link", self._hovering_over_link_cb)
web_view.connect("populate-popup", self._populate_page_popup_cb)
web_view.connect("load-finished", self._view_load_finished_cb)
web_view.connect("create-web-view", self._new_web_view_request_cb)
web_view.connect("title-changed", self._title_changed_cb)
inspector = Inspector(web_view.get_web_inspector())
scrolled_window = gtk.ScrolledWindow()
scrolled_window.props.hscrollbar_policy = gtk.POLICY_AUTOMATIC
scrolled_window.props.vscrollbar_policy = gtk.POLICY_AUTOMATIC
scrolled_window.add(web_view)
scrolled_window.show_all()
# create the tab
label = TabLabel(url, scrolled_window)
label.connect("close", self._close_tab)
label.show_all()
new_tab_number = self.append_page(scrolled_window, label)
self.set_tab_label_packing(scrolled_window, False, False, gtk.PACK_START)
self.set_tab_label(scrolled_window, label)
# hide the tab if there's only one
self.set_show_tabs(self.get_n_pages() > 1)
self.show_all()
self.set_current_page(new_tab_number)
# load the content
self._hovered_uri = None
if not url:
web_view.load_string(ABOUT_PAGE, "text/html", "iso-8859-15", "about")
else:
web_view.load_uri(url)
def _populate_page_popup_cb(self, view, menu):
# misc
if self._hovered_uri:
open_in_new_tab = gtk.MenuItem(_("Open Link in New Tab"))
open_in_new_tab.connect("activate", self._open_in_new_tab, view)
menu.insert(open_in_new_tab, 0)
menu.show_all()
def _open_in_new_tab (self, menuitem, view):
self.new_tab(self._hovered_uri)
def _close_tab (self, label, child):
page_num = self.page_num(child)
if page_num != -1:
view = child.get_child()
view.destroy()
self.remove_page(page_num)
self.set_show_tabs(self.get_n_pages() > 1)
def _switch_page (self, notebook, page, page_num):
child = self.get_nth_page(page_num)
view = child.get_child()
frame = view.get_main_frame()
self.emit("focus-view-title-changed", frame, frame.props.title)
def _hovering_over_link_cb (self, view, title, uri):
self._hovered_uri = uri
def _title_changed_cb (self, view, frame, title):
child = self.get_nth_page(self.get_current_page())
label = self.get_tab_label(child)
label.set_label(title)
self.emit("focus-view-title-changed", frame, title)
def _view_load_finished_cb(self, view, frame):
child = self.get_nth_page(self.get_current_page())
label = self.get_tab_label(child)
title = frame.get_title()
if not title:
title = frame.get_uri()
if title:
label.set_label(title)
def _new_web_view_request_cb (self, web_view, web_frame):
scrolled_window = gtk.ScrolledWindow()
scrolled_window.props.hscrollbar_policy = gtk.POLICY_AUTOMATIC
scrolled_window.props.vscrollbar_policy = gtk.POLICY_AUTOMATIC
view = BrowserPage()
scrolled_window.add(view)
scrolled_window.show_all()
vbox = gtk.VBox(spacing=1)
vbox.pack_start(scrolled_window, True, True)
window = gtk.Window()
window.add(vbox)
view.connect("web-view-ready", self._new_web_view_ready_cb)
return view
def _new_web_view_ready_cb (self, web_view):
self.emit("new-window-requested", web_view)
class WebToolbar(gtk.Toolbar):
__gsignals__ = {
"load-requested": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
(gobject.TYPE_STRING,)),
"new-tab-requested": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ()),
"view-source-mode-requested": (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
(gobject.TYPE_BOOLEAN, ))
}
def __init__(self, location_enabled=True, toolbar_enabled=True):
gtk.Toolbar.__init__(self)
# location entry
if location_enabled:
self._entry = gtk.Entry()
self._entry.connect('activate', self._entry_activate_cb)
entry_item = gtk.ToolItem()
entry_item.set_expand(True)
entry_item.add(self._entry)
self._entry.show()
self.insert(entry_item, -1)
entry_item.show()
# add tab button
if toolbar_enabled:
addTabButton = gtk.ToolButton(gtk.STOCK_ADD)
addTabButton.connect("clicked", self._add_tab_cb)
self.insert(addTabButton, -1)
addTabButton.show()
viewSourceItem = gtk.ToggleToolButton(gtk.STOCK_PROPERTIES)
viewSourceItem.set_label("View Source Mode")
viewSourceItem.connect('toggled', self._view_source_mode_cb)
self.insert(viewSourceItem, -1)
viewSourceItem.show()
def location_set_text (self, text):
self._entry.set_text(text)
def _entry_activate_cb(self, entry):
self.emit("load-requested", entry.props.text)
def _add_tab_cb(self, button):
self.emit("new-tab-requested")
def _view_source_mode_cb(self, button):
self.emit("view-source-mode-requested", button.get_active())
class WebBrowser(gtk.Window):
def __init__(self):
gtk.Window.__init__(self)
toolbar = WebToolbar()
content_tabs = ContentPane()
content_tabs.connect("focus-view-title-changed", self._title_changed_cb, toolbar)
content_tabs.connect("new-window-requested", self._new_window_requested_cb)
toolbar.connect("load-requested", load_requested_cb, content_tabs)
toolbar.connect("new-tab-requested", new_tab_requested_cb, content_tabs)
toolbar.connect("view-source-mode-requested", view_source_mode_requested_cb, content_tabs)
vbox = gtk.VBox(spacing=1)
vbox.pack_start(toolbar, expand=False, fill=False)
vbox.pack_start(content_tabs)
self.add(vbox)
self.set_default_size(800, 600)
self.connect('destroy', destroy_cb, content_tabs)
self.show_all()
content_tabs.new_tab("http://www.google.com")
def _new_window_requested_cb (self, content_pane, view):
features = view.get_window_features()
window = view.get_toplevel()
scrolled_window = view.get_parent()
if features.get_property("scrollbar-visible"):
scrolled_window.props.hscrollbar_policy = gtk.POLICY_NEVER
scrolled_window.props.vscrollbar_policy = gtk.POLICY_NEVER
isLocationbarVisible = features.get_property("locationbar-visible")
isToolbarVisible = features.get_property("toolbar-visible")
if isLocationbarVisible or isToolbarVisible:
toolbar = WebToolbar(isLocationbarVisible, isToolbarVisible)
scrolled_window.get_parent().pack_start(toolbar, False, False, 0)
window.set_default_size(features.props.width, features.props.height)
window.move(features.props.x, features.props.y)
window.show_all()
return True
def _title_changed_cb (self, tabbed_pane, frame, title, toolbar):
if not title:
title = frame.get_uri()
self.set_title(_("PyWebKitGtk - %s") % title)
load_committed_cb(tabbed_pane, frame, toolbar)
# event handlers
def new_tab_requested_cb (toolbar, content_pane):
content_pane.new_tab("about:blank")
def load_requested_cb (widget, text, content_pane):
if not text:
return
content_pane.load(text)
def load_committed_cb (tabbed_pane, frame, toolbar):
uri = frame.get_uri()
if uri:
toolbar.location_set_text(uri)
def destroy_cb(window, content_pane):
"""destroy window resources"""
num_pages = content_pane.get_n_pages()
while num_pages != -1:
child = content_pane.get_nth_page(num_pages)
if child:
view = child.get_child()
num_pages = num_pages - 1
window.destroy()
gtk.main_quit()
# context menu item callbacks
def about_pywebkitgtk_cb(menu_item, web_view):
web_view.open("http://live.gnome.org/PyWebKitGtk")
def zoom_in_cb(menu_item, web_view):
"""Zoom into the page"""
web_view.zoom_in()
def zoom_out_cb(menu_item, web_view):
"""Zoom out of the page"""
web_view.zoom_out()
def zoom_hundred_cb(menu_item, web_view):
"""Zoom 100%"""
if not (web_view.get_zoom_level() == 1.0):
web_view.set_zoom_level(1.0)
def print_cb(menu_item, web_view):
mainframe = web_view.get_main_frame()
mainframe.print_full(gtk.PrintOperation(), gtk.PRINT_OPERATION_ACTION_PRINT_DIALOG);
def page_properties_cb(menu_item, web_view):
mainframe = web_view.get_main_frame()
datasource = mainframe.get_data_source()
main_resource = datasource.get_main_resource()
window = gtk.Window()
window.set_default_size(100, 60)
vbox = gtk.VBox()
hbox = gtk.HBox()
hbox.pack_start(gtk.Label("MIME Type :"), False, False)
hbox.pack_end(gtk.Label(main_resource.get_mime_type()), False, False)
vbox.pack_start(hbox, False, False)
hbox2 = gtk.HBox()
hbox2.pack_start(gtk.Label("URI : "), False, False)
hbox2.pack_end(gtk.Label(main_resource.get_uri()), False, False)
vbox.pack_start(hbox2, False, False)
hbox3 = gtk.HBox()
hbox3.pack_start(gtk.Label("Encoding : "), False, False)
hbox3.pack_end(gtk.Label(main_resource.get_encoding()), False, False)
vbox.pack_start(hbox3, False, False)
window.add(vbox)
window.show_all()
window.present()
def view_source_mode_requested_cb(widget, is_active, content_pane):
currentTab = content_pane.get_nth_page(content_pane.get_current_page())
childView = currentTab.get_child()
childView.set_view_source_mode(is_active)
childView.reload()
if __name__ == "__main__":
webbrowser = WebBrowser()
gtk.main()
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