The same tabs as browse

1 files changed, 150 insertions, 0 deletions

diff --git a/widgets.py b/widgets.py
new file mode 100644
index 0000000..94eff64
--- /dev/null
+++ b/widgets.py
@@ -0,0 +1,150 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (C) 2006, Red Hat, Inc.
+# Copyright (C) 2011, 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
+
+from gi.repository import GObject
+from gi.repository import Gtk
+from gi.repository import Pango
+
+from sugar3.graphics.icon import Icon
+
+
+class TabAdd(Gtk.Button):
+    __gtype_name__ = 'BrowseTabAdd'
+
+    __gsignals__ = {
+        'tab-added': (GObject.SignalFlags.RUN_FIRST,
+                      None,
+                      ([])),
+    }
+
+    def __init__(self):
+        GObject.GObject.__init__(self)
+
+        add_tab_icon = Icon(icon_name='add')
+        self.props.relief = Gtk.ReliefStyle.NONE
+        self.props.focus_on_click = False
+        icon_box = Gtk.HBox()
+        icon_box.pack_start(add_tab_icon, True, False, 0)
+        self.add(icon_box)
+        self.connect('clicked', self.__button_clicked_cb)
+        self.set_name('browse-tab-add')
+        add_tab_icon.show()
+        icon_box.show()
+        self.show()
+
+    def __button_clicked_cb(self, button):
+        self.emit('tab-added')
+
+
+class BrowserNotebook(Gtk.Notebook):
+    __gtype_name__ = 'BrowseNotebook'
+
+    __gsignals__ = {
+        'tab-added': (GObject.SignalFlags.RUN_FIRST,
+                      None,
+                      ([])),
+    }
+
+    """Handle an extra tab at the end with an Add Tab button."""
+
+    def __init__(self):
+        GObject.GObject.__init__(self)
+
+        self.first_expose = True
+        self.connect("draw", self._draw_cb)
+        self._tab_add = TabAdd()
+        self._tab_add.connect('tab-added', self.on_add_tab)
+        self.set_action_widget(self._tab_add, Gtk.PackType.END)
+        self._tab_add.show()
+
+    def _draw_cb(self, widget, event):
+        if self.first_expose:
+            self.update_tab_sizes()
+            self.first_expose = False
+
+    def on_add_tab(self, obj):
+        self.emit('tab-added')
+
+    def update_tab_sizes(self):
+        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(float(allowed_size) / (n_pages) -\
+                           self._tab_add.get_allocation().width - 5)
+
+        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)
+
+
+class TabLabel(Gtk.HBox):
+    __gtype_name__ = 'BrowseTabLabel'
+
+    __gsignals__ = {
+        'tab-close': (GObject.SignalFlags.RUN_FIRST,
+                      None,
+                      ([GObject.TYPE_PYOBJECT])),
+    }
+
+    def __init__(self, child):
+        GObject.GObject.__init__(self)
+
+        self.child = child
+        self._label = Gtk.Label(label="")
+        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='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 set_text(self, title):
+        self._label.set_text(title)
+
+    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', self.child)