[Sugar-devel] [PATCH Speak] Removing Hippo Canvas from chat mode

Daniel Francis francis at sugarlabs.org
Sat Jul 7 20:01:33 EDT 2012


Now the activity hasn't got HippoCanvas and I'm ready to port it to Gtk3!

A little comment, I added de _share function because I forgot it at the time to remove the early toolkit modules, and it appeared in the log when I tried to share the activity.

Signed-off-by: Daniel Francis <francis at sugarlabs.org>
---
 activity.py |   12 ++
 chat.py     |  137 +++++++++++-----------
 chatbox.py  |  364 ++++++++++++++++++++++++++++++++++-------------------------
 roundbox.py |  100 ++++++++++++++++
 4 files changed, 391 insertions(+), 222 deletions(-)
 create mode 100644 roundbox.py

diff --git a/activity.py b/activity.py
index a3f01ac..d4f0e2a 100644
--- a/activity.py
+++ b/activity.py
@@ -203,6 +203,18 @@ class SpeakActivity(SharedActivity):
         toolbox.show_all()
         self.toolbar_box = toolbox
 
+    def _share(self, tube_conn, initiator):
+        logging.debug('Activity._share state=%s' % self.__state)
+
+        if self.__state == _NEW_INSTANCE:
+            self.__postponed_share.append((tube_conn, initiator))
+            self.__state = _PRE_INSTANCE
+        elif self.__state == _PRE_INSTANCE:
+            self.__postponed_share.append((tube_conn, initiator))
+            self.__instance()
+        elif self.__state == _POST_INSTANCE:
+            self.share_instance(tube_conn, initiator)
+
     def set_cursor(self, cursor):
         if not isinstance(cursor, gtk.gdk.Cursor):
             cursor = CursorFactory().get_cursor(cursor)
diff --git a/chat.py b/chat.py
index 12d0075..a61822d 100644
--- a/chat.py
+++ b/chat.py
@@ -16,12 +16,11 @@
 
 import gtk
 import pango
-import hippo
 import logging
 from gettext import gettext as _
 
 import sugar.graphics.style as style
-from sugar.graphics.roundbox import CanvasRoundBox
+from roundbox import RoundBox
 from sugar.graphics.toggletoolbutton import ToggleToolButton
 
 import eye
@@ -45,9 +44,9 @@ ENTRY_XPAD = 0
 ENTRY_YPAD = 7
 
 
-class View(hippo.Canvas):
+class View(gtk.EventBox):
     def __init__(self):
-        hippo.Canvas.__init__(self)
+        gtk.EventBox.__init__(self)
 
         self.messenger = None
         self.me = None
@@ -57,16 +56,18 @@ class View(hippo.Canvas):
 
         # buddies box
 
-        self._buddies_list = hippo.CanvasBox(
-                background_color=BUDDIES_COLOR.get_int(),
-                box_width=BUDDIES_WIDTH,
-                padding=ENTRY_YPAD,
-                spacing=ENTRY_YPAD)
+        self._buddies_list = gtk.VBox()
+        self._buddies_list.set_homogeneous(False)
+        self._buddies_list.props.spacing = ENTRY_YPAD
 
-        self._buddies_box = hippo.CanvasScrollbars()
-        self._buddies_box.set_policy(hippo.ORIENTATION_HORIZONTAL,
-                hippo.SCROLLBAR_NEVER)
-        self._buddies_box.set_root(self._buddies_list)
+        self._buddies_box = gtk.ScrolledWindow()
+        self._buddies_box.set_policy(gtk.POLICY_ALWAYS,
+                                     gtk.POLICY_NEVER)
+        evbox = gtk.EventBox()
+        evbox.modify_bg(gtk.STATE_NORMAL, BUDDIES_COLOR.get_gdk_color())
+        evbox.add(self._buddies_list)
+        evbox.show()
+        self._buddies_box.add_with_viewport(evbox)
 
         # chat entry
 
@@ -82,40 +83,37 @@ class View(hippo.Canvas):
         chat_post.connect('key-press-event', self._key_press_cb)
         chat_post.props.wrap_mode = gtk.WRAP_WORD_CHAR
         chat_post.set_size_request(-1, BUDDY_SIZE - ENTRY_YPAD * 2)
-        chat_post_box = CanvasRoundBox(
-                background_color=style.COLOR_WHITE.get_int(),
-                padding_left=ENTRY_XPAD,
-                padding_right=ENTRY_XPAD,
-                padding_top=ENTRY_YPAD,
-                padding_bottom=ENTRY_YPAD
-                )
-        chat_post_box.props.border_color = ENTRY_COLOR.get_int()
-        chat_post_box.append(hippo.CanvasWidget(widget=chat_post),
-                hippo.PACK_EXPAND)
-
-        chat_entry = CanvasRoundBox(background_color=ENTRY_COLOR.get_int(),
-                                    padding_left=ENTRY_XPAD,
-                                    padding_right=ENTRY_XPAD,
-                                    padding_top=ENTRY_YPAD,
-                                    padding_bottom=ENTRY_YPAD,
-                                    spacing=ENTRY_YPAD)
-        chat_entry.props.orientation = hippo.ORIENTATION_HORIZONTAL
-        chat_entry.props.border_color = style.COLOR_WHITE.get_int()
-        chat_entry.append(my_face_widget)
-        chat_entry.append(chat_post_box, hippo.PACK_EXPAND)
-
-        chat_box = hippo.CanvasBox(orientation=hippo.ORIENTATION_VERTICAL,
-                                  background_color=style.COLOR_WHITE.get_int())
-        chat_box.append(self._chat, hippo.PACK_EXPAND)
-        chat_box.append(chat_entry)
+        chat_post_box = RoundBox()
+        chat_post_box.background_color = style.COLOR_WHITE
+        chat_post_box.border_color = ENTRY_COLOR
+        chat_post_box.pack_start(chat_post, True, True, ENTRY_XPAD)
+
+        chat_entry = RoundBox()
+        chat_entry.set_border_width(ENTRY_YPAD)
+        chat_entry.background_color = ENTRY_COLOR
+        chat_entry.border_color = style.COLOR_WHITE
+        chat_entry.pack_start(my_face_widget, False, True, 0)
+        separator = gtk.EventBox()
+        separator.modify_bg(gtk.STATE_NORMAL, ENTRY_COLOR.get_gdk_color())
+        separator.set_size_request(ENTRY_YPAD, -1)
+        separator.show()
+        chat_entry.pack_start(separator, False, False)
+        chat_entry.pack_start(chat_post_box, True, True, ENTRY_XPAD)
+
+        evbox = gtk.EventBox()
+        evbox.modify_bg(gtk.STATE_NORMAL, style.COLOR_WHITE.get_gdk_color())
+        chat_box = gtk.VBox()
+        chat_box.pack_start(self._chat, True, True)
+        chat_box.pack_start(chat_entry, False, True)
+        evbox.add(chat_box)
 
         # desk
 
-        self._desk = hippo.CanvasBox()
-        self._desk.props.orientation = hippo.ORIENTATION_HORIZONTAL
-        self._desk.append(chat_box, hippo.PACK_EXPAND)
+        self._desk = gtk.HBox()
+        self._desk.pack_start(evbox, True, True)
+        self._desk.show_all()
 
-        self.set_root(self._desk)
+        self.add(self._desk)
 
     def update(self, status):
         self.me.update(status)
@@ -160,34 +158,30 @@ class View(hippo.Canvas):
         self.me.shut_up()
 
     def _add_buddy(self, buddy):
-        box = hippo.CanvasBox(orientation=hippo.ORIENTATION_HORIZONTAL,
-                              background_color=BUDDIES_COLOR.get_int(),
-                              spacing=ENTRY_YPAD)
+        evbox = gtk.EventBox()
+        evbox.modify_bg(gtk.STATE_NORMAL, BUDDIES_COLOR.get_gdk_color())
+        box = gtk.HBox()
 
         buddy_face, buddy_widget = self._new_face(buddy, BUDDIES_COLOR)
 
-        char_box = hippo.CanvasBox(orientation=hippo.ORIENTATION_VERTICAL)
-        nick = hippo.CanvasText(text=buddy.props.nick,
-                                xalign=hippo.ALIGNMENT_START,
-                                yalign=hippo.ALIGNMENT_START)
-        lang = hippo.CanvasText(text='',
-                                xalign=hippo.ALIGNMENT_START,
-                                yalign=hippo.ALIGNMENT_START)
-        char_box.append(nick)
-        char_box.append(lang)
+        char_box = gtk.VBox()
+        nick = gtk.Label(buddy.props.nick)
+        lang = gtk.Label()
+        char_box.pack_start(nick)
+        char_box.pack_start(lang)
 
-        box.append(buddy_widget)
-        box.append(char_box, hippo.PACK_EXPAND)
+        box.pack_start(buddy_widget, False, False, ENTRY_YPAD)
+        box.pack_start(char_box, True, True, ENTRY_YPAD)
 
         self._buddies[buddy] = {
                 'box': box,
                 'face': buddy_face,
                 'lang': lang
                 }
-        self._buddies_list.append(box)
+        self._buddies_list.pack_start(box)
 
         if len(self._buddies) == 1:
-            self._desk.append(self._buddies_box)
+            self._desk.pack_start(self._buddies_box)
 
     def _key_press_cb(self, widget, event):
         if event.keyval == gtk.keysyms.Return:
@@ -213,17 +207,20 @@ class View(hippo.Canvas):
         buddy_face = face.View(fill_color)
         buddy_face.show_all()
 
-        inner = CanvasRoundBox(background_color=fill_color.get_int())
-        inner.props.border_color = fill_color.get_int()
-        inner.append(hippo.CanvasWidget(widget=buddy_face), hippo.PACK_EXPAND)
-        inner.props.border = BUDDY_PAD
-
-        outer = CanvasRoundBox(background_color=stroke_color.get_int(),
-                               box_width=BUDDY_SIZE,
-                               box_height=BUDDY_SIZE)
-        outer.props.border_color = stroke_color.get_int()
-        outer.append(inner, hippo.PACK_EXPAND)
-        outer.props.border = BUDDY_PAD
+        inner = RoundBox()
+        inner.set_border_width(BUDDY_PAD)
+        inner.background_color = fill_color
+        inner.border_color = fill_color
+        inner.pack_start(buddy_face, True, True, 0)
+        inner.border = BUDDY_PAD
+
+        outer = RoundBox()
+        outer.set_border_width(BUDDY_PAD)
+        outer.background_color = stroke_color
+        outer.set_size_request(BUDDY_SIZE, BUDDY_SIZE)
+        outer.border_color = stroke_color
+        outer.pack_start(inner, True, True, 0)
+        outer.border = BUDDY_PAD
 
         return (buddy_face, outer)
 
diff --git a/chatbox.py b/chatbox.py
index 671ba09..58320b4 100644
--- a/chatbox.py
+++ b/chatbox.py
@@ -17,21 +17,20 @@
 # This code is a stripped down version of the Chat
 
 import gtk
-import hippo
 import logging
 import pango
 import re
 from datetime import datetime
-from gobject import SIGNAL_RUN_FIRST, TYPE_PYOBJECT
 from gettext import gettext as _
 
-import sugar.graphics.style as style
-from sugar.graphics.roundbox import CanvasRoundBox
-from sugar.graphics.palette import Palette, CanvasInvoker
+from sugar.graphics.style import style
+from sugar.graphics.palette import Palette
+from sugar.graphics.palette import CanvasInvoker
+from sugar.graphics.palette import MouseSpeedDetector
 from sugar.presence import presenceservice
-from sugar.graphics.style import (Color, COLOR_BLACK, COLOR_WHITE)
 from sugar.graphics.menuitem import MenuItem
 from sugar.activity.activity import get_activity_root
+from roundbox import RoundBox
 
 logger = logging.getLogger('speak')
 
@@ -40,9 +39,173 @@ URL_REGEXP = re.compile('((http|ftp)s?://)?'
     '(:[1-9][0-9]{0,4})?(/[-a-zA-Z0-9/%~@&_+=;:,.?#]*[a-zA-Z0-9/])?')
 
 
-class ChatBox(hippo.CanvasScrollbars):
+class TextBox(gtk.TextView):
+
+    hand_cursor = gtk.gdk.Cursor(gtk.gdk.HAND2)
+
+    def __init__(self, color, bg_color, lang_rtl):
+        self._lang_rtl = lang_rtl
+        gtk.TextView.__init__(self)
+        self.set_editable(False)
+        self.set_cursor_visible(False)
+        self.set_wrap_mode(gtk.WRAP_WORD_CHAR)
+        self.get_buffer().set_text("", 0)
+        self.iter_text = self.get_buffer().get_iter_at_offset(0)
+        self.fg_tag = self.get_buffer().create_tag("foreground_color",
+            foreground=color.get_html())
+        self._subscript_tag = self.get_buffer().create_tag('subscript',
+                    rise=-7 * pango.SCALE)  # in pixels
+        self._empty = True
+        self.palette = None
+        self._mouse_detector = MouseSpeedDetector(self, 200, 5)
+        self._mouse_detector.connect('motion-slow', self.__mouse_slow_cb)
+        self.modify_base(gtk.STATE_NORMAL, bg_color.get_gdk_color())
+
+        self.add_events(gtk.gdk.POINTER_MOTION_MASK | \
+                        gtk.gdk.BUTTON_PRESS_MASK | \
+                        gtk.gdk.BUTTON_RELEASE_MASK | \
+                        gtk.gdk.LEAVE_NOTIFY_MASK)
+
+        self.connect('event-after', self.__event_after_cb)
+        self.connect('button-press-event', self.__button_press_cb)
+        self.motion_notify_id = self.connect('motion-notify-event', \
+                self.__motion_notify_cb)
+        self.connect('visibility-notify-event', self.__visibility_notify_cb)
+        self.connect('leave-notify-event', self.__leave_notify_event_cb)
+
+    def __leave_notify_event_cb(self, widget, event):
+        self._mouse_detector.stop()
+
+    def __button_press_cb(self, widget, event):
+        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 3:
+            # To disable the standard textview popup
+            return True
+
+    # Links can be activated by clicking.
+    def __event_after_cb(self, widget, event):
+        if event.type != gtk.gdk.BUTTON_RELEASE:
+            return False
+
+        x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
+            int(event.x), int(event.y))
+        iter_tags = self.get_iter_at_location(x, y)
+
+        for tag in iter_tags.get_tags():
+            url = tag.get_data('url')
+            if url is not None:
+                if event.button == 3:
+                    palette = tag.get_data('palette')
+                    xw, yw = self.get_toplevel().get_pointer()
+                    palette.move(int(xw), int(yw))
+                    palette.popup()
+                else:
+                    self._show_via_journal(url)
+                break
+
+        return False
+
+    def check_url_hovering(self, x, y):
+        # Looks at all tags covering the position (x, y) in the text view,
+        # and if one of them is a link return True
+
+        hovering = False
+        # When check on_slow_mouse event, the position can be out
+        # of the widget and return negative values.
+        if x < 0 or y < 0:
+            return hovering
+
+        self.palette = None
+        iter_tags = self.get_iter_at_location(x, y)
+
+        tags = iter_tags.get_tags()
+        for tag in tags:
+            url = tag.get_data('url')
+            self.palette = tag.get_data('palette')
+            if url is not None:
+                hovering = True
+                break
+        return hovering
+
+    def set_cursor_if_appropriate(self, x, y):
+        # Looks at all tags covering the position (x, y) in the text view,
+        # and if one of them is a link, change the cursor to the "hands" cursor
+
+        hovering_over_link = self.check_url_hovering(x, y)
+        win = self.get_window(gtk.TEXT_WINDOW_TEXT)
+        if hovering_over_link:
+            win.set_cursor(self.hand_cursor)
+            self._mouse_detector.start()
+        else:
+            win.set_cursor(None)
+            self._mouse_detector.stop()
+
+    def __mouse_slow_cb(self, widget):
+        x, y = self.get_pointer()
+        hovering_over_link = self.check_url_hovering(x, y)
+        if hovering_over_link:
+            if self.palette is not None:
+                xw, yw = self.get_toplevel().get_pointer()
+                self.palette.move(xw, yw)
+                self.palette.popup()
+                self._mouse_detector.stop()
+        else:
+            if self.palette is not None:
+                self.palette.popdown()
+
+    # Update the cursor image if the pointer moved.
+    def __motion_notify_cb(self, widget, event):
+        x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
+            int(event.x), int(event.y))
+        self.set_cursor_if_appropriate(x, y)
+        self.window.get_pointer()
+        return False
+
+    def __visibility_notify_cb(self, widget, event):
+        # Also update the cursor image if the window becomes visible
+        # (e.g. when a window covering it got iconified).
+
+        wx, wy, __ = self.window.get_pointer()
+        bx, by = self.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET, wx, wy)
+        self.set_cursor_if_appropriate(bx, by)
+        return False
+
+    def __palette_mouse_enter_cb(self, widget, event):
+        self.handler_block(self.motion_notify_id)
+
+    def __palette_mouse_leave_cb(self, widget, event):
+        self.handler_unblock(self.motion_notify_id)
+
+    def add_text(self, text):
+        buf = self.get_buffer()
+
+        if not self._empty:
+            buf.insert(self.iter_text, '\n')
+
+        words = text.split()
+        for word in words:
+            buf.insert(self.iter_text, word)
+            buf.insert(self.iter_text, ' ')
+
+        self._empty = False
+
+
+class ColorLabel(gtk.Label):
+
+    def __init__(self, text, color=None):
+        self._color = color
+        if self._color is not None:
+            text = '<span foreground="%s">' % self._color.get_html() +\
+                    text + '</span>'
+        gtk.Label.__init__(self)
+        self.set_use_markup(True)
+        self.set_markup(text)
+        self.props.selectable = True
+
+
+class ChatBox(gtk.ScrolledWindow):
+
     def __init__(self):
-        hippo.CanvasScrollbars.__init__(self)
+        gtk.ScrolledWindow.__init__(self)
 
         self.owner = presenceservice.get_instance().get_owner()
 
@@ -54,15 +217,17 @@ class ChatBox(hippo.CanvasScrollbars):
         self._last_msg = None
         self._chat_log = ''
 
-        self._conversation = hippo.CanvasBox(
-                spacing=0,
-                background_color=COLOR_WHITE.get_int())
-
-        self.set_policy(hippo.ORIENTATION_HORIZONTAL,
-                hippo.SCROLLBAR_NEVER)
-        self.set_root(self._conversation)
-
-        vadj = self.props.widget.get_vadjustment()
+        self._conversation = gtk.VBox()
+        self._conversation.set_homogeneous(False)
+        self._conversation.props.spacing = style.LINE_WIDTH
+        self._conversation.props.border_width = style.LINE_WIDTH
+        evbox = gtk.EventBox()
+        evbox.modify_bg(gtk.STATE_NORMAL, style.COLOR_WHITE.get_gdk_color())
+        evbox.add(self._conversation)
+
+        self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
+        self.add_with_viewport(evbox)
+        vadj = self.get_vadjustment()
         vadj.connect('changed', self._scroll_changed_cb)
         vadj.connect('value-changed', self._scroll_value_changed_cb)
 
@@ -80,17 +245,12 @@ class ChatBox(hippo.CanvasScrollbars):
             False: show what buddy said
             True: show what buddy did
 
-        hippo layout:
         .------------- rb ---------------.
-        | +name_vbox+ +----msg_vbox----+ |
+        | +name_vbox+ +----align-----+ |
         | |         | |                | |
-        | | nick:   | | +--msg_hbox--+ | |
-        | |         | | | text       | | |
+        | | nick:   | | +--message---+ | |
+        | |         | | |  text      | | |
         | +---------+ | +------------+ | |
-        |             |                | |
-        |             | +--msg_hbox--+ | |
-        |             | | text | url | | |
-        |             | +------------+ | |
         |             +----------------+ |
         `--------------------------------'
         """
@@ -110,16 +270,15 @@ class ChatBox(hippo.CanvasScrollbars):
             color_stroke_html, color_fill_html = ('#000000', '#888888')
 
         # Select text color based on fill color:
-        color_fill_rgba = Color(color_fill_html).get_rgba()
+        color_fill_rgba = style.Color(color_fill_html).get_rgba()
         color_fill_gray = (color_fill_rgba[0] + color_fill_rgba[1] +
                            color_fill_rgba[2]) / 3
-        color_stroke = Color(color_stroke_html).get_int()
-        color_fill = Color(color_fill_html).get_int()
-
+        color_stroke = style.Color(color_stroke_html)
+        color_fill = style.Color(color_fill_html)
         if color_fill_gray < 0.5:
-            text_color = COLOR_WHITE.get_int()
+            text_color = style.COLOR_WHITE
         else:
-            text_color = COLOR_BLACK.get_int()
+            text_color = style.COLOR_BLACK
 
         self._add_log(nick, color, text, status_message)
 
@@ -139,82 +298,35 @@ class ChatBox(hippo.CanvasScrollbars):
 
         if not new_msg:
             rb = self._last_msg
-            msg_vbox = rb.get_children()[1]
-            msg_hbox = hippo.CanvasBox(
-                orientation=hippo.ORIENTATION_HORIZONTAL)
-            msg_vbox.append(msg_hbox)
+            self._last_msg.add_text(text)
         else:
-            rb = CanvasRoundBox(background_color=color_fill,
-                                border_color=color_stroke,
-                                padding=4)
-            rb.props.border_color = color_stroke  # Bug #3742
-            self._last_msg = rb
+            rb = RoundBox()
+            screen_width = gtk.gdk.screen_width()
+            # keep space to the scrollbar
+            rb.set_size_request(screen_width - 50, -1)
+            rb.props.border_width = style.DEFAULT_PADDING
+            rb.props.spacing = style.DEFAULT_SPACING
+            rb.background_color = color_fill
+            rb.border_color = color_stroke
             self._last_msg_sender = buddy
+            self._last_msg = rb
             if not status_message:
-                name = hippo.CanvasText(text=nick + ':   ',
-                    color=text_color)
-                name_vbox = hippo.CanvasBox(
-                    orientation=hippo.ORIENTATION_VERTICAL)
-                name_vbox.append(name)
-                rb.append(name_vbox)
-            msg_vbox = hippo.CanvasBox(
-                orientation=hippo.ORIENTATION_VERTICAL)
-            rb.append(msg_vbox)
-            msg_hbox = hippo.CanvasBox(
-                orientation=hippo.ORIENTATION_HORIZONTAL)
-            msg_vbox.append(msg_hbox)
+                name = ColorLabel(text=nick + ':', color=text_color)
+                name_vbox = gtk.VBox()
+                name_vbox.pack_start(name, False, False)
+                rb.pack_start(name_vbox, False, False)
+            message = TextBox(text_color, color_fill, lang_rtl)
+            vbox = gtk.VBox()
+            vbox.pack_start(message, True, True)
+            rb.pack_start(vbox, True, True)
+            self._last_msg = message
+            self._conversation.pack_start(rb, False, False)
+            message.add_text(text)
+            self._conversation.show_all()
 
         if status_message:
             self._last_msg_sender = None
 
-        match = URL_REGEXP.match(text)
-        while match:
-            # there is a URL in the text
-            starttext = text[:match.start()]
-            if starttext:
-                message = hippo.CanvasText(
-                    text=starttext,
-                    size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
-                    color=text_color,
-                    xalign=hippo.ALIGNMENT_START)
-                msg_hbox.append(message)
-            url = text[match.start():match.end()]
-
-            message = CanvasLink(
-                text=url,
-                color=text_color)
-            attrs = pango.AttrList()
-            attrs.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, 32767))
-            message.set_property("attributes", attrs)
-            message.connect('activated', self._link_activated_cb)
-
-            # call interior magic which should mean just:
-            # CanvasInvoker().parent = message
-            CanvasInvoker(message)
-
-            msg_hbox.append(message)
-            text = text[match.end():]
-            match = URL_REGEXP.search(text)
-
-        if text:
-            message = hippo.CanvasText(
-                text=text,
-                size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
-                color=text_color,
-                xalign=hippo.ALIGNMENT_START)
-            msg_hbox.append(message)
-
-        # Order of boxes for RTL languages:
-        if lang_rtl:
-            msg_hbox.reverse()
-            if new_msg:
-                rb.reverse()
-
-        if new_msg:
-            box = hippo.CanvasBox(padding=2)
-            box.append(rb)
-            self._conversation.append(box)
-
     def _scroll_value_changed_cb(self, adj, scroll=None):
         """Turn auto scrolling on or off.
         If the user scrolled up, turn it off.
@@ -282,58 +394,6 @@ class ChatBox(hippo.CanvasScrollbars):
             nick, color, status_message, text)
 
 
-class CanvasLink(hippo.CanvasLink):
-    def __init__(self, **kwargs):
-        hippo.CanvasLink.__init__(self, **kwargs)
-
-    def create_palette(self):
-        return URLMenu(self.props.text)
-
-
-class URLMenu(Palette):
-    def __init__(self, url):
-        Palette.__init__(self, url)
-
-        self.url = url_check_protocol(url)
-
-        menu_item = MenuItem(_('Copy to Clipboard'), 'edit-copy')
-        menu_item.connect('activate', self._copy_to_clipboard_cb)
-        self.menu.append(menu_item)
-        menu_item.show()
-
-    def create_palette(self):
-        pass
-
-    def _copy_to_clipboard_cb(self, menuitem):
-        logger.debug('Copy %s to clipboard', self.url)
-        clipboard = gtk.clipboard_get()
-        targets = [("text/uri-list", 0, 0),
-                   ("UTF8_STRING", 0, 1)]
-
-        if not clipboard.set_with_data(targets,
-                                       self._clipboard_data_get_cb,
-                                       self._clipboard_clear_cb,
-                                       (self.url)):
-            logger.error('GtkClipboard.set_with_data failed!')
-        else:
-            self.owns_clipboard = True
-
-    def _clipboard_data_get_cb(self, clipboard, selection, info, data):
-        logger.debug('_clipboard_data_get_cb data=%s target=%s', data,
-                     selection.target)
-        if selection.target in ['text/uri-list']:
-            if not selection.set_uris([data]):
-                logger.debug('failed to set_uris')
-        else:
-            logger.debug('not uri')
-            if not selection.set_text(data):
-                logger.debug('failed to set_text')
-
-    def _clipboard_clear_cb(self, clipboard, data):
-        logger.debug('clipboard_clear_cb')
-        self.owns_clipboard = False
-
-
 def url_check_protocol(url):
     """Check that the url has a protocol, otherwise prepend https://
 
diff --git a/roundbox.py b/roundbox.py
new file mode 100644
index 0000000..35d5f7c
--- /dev/null
+++ b/roundbox.py
@@ -0,0 +1,100 @@
+import math
+import gtk
+from sugar.graphics import style
+
+
+class RoundBox(gtk.HBox):
+    __gtype_name__ = 'RoundBox'
+
+    _BORDER_DEFAULT = style.LINE_WIDTH
+
+    def __init__(self, **kwargs):
+        gtk.HBox.__init__(self, **kwargs)
+
+        self._x = None
+        self._y = None
+        self._width = None
+        self._height = None
+        self._radius = style.zoom(10)
+        self.border = self._BORDER_DEFAULT
+        self.border_color = style.COLOR_BLACK
+        self.background_color = None
+        self.set_reallocate_redraws(True)
+        self.set_resize_mode(gtk.RESIZE_PARENT)
+        self.connect("expose_event", self.__expose_cb)
+        self.connect("add", self.__add_cb)
+
+    def __add_cb(self, child, params):
+        child.set_border_width(style.zoom(5))
+
+    def __size_allocate_cb(self, widget, allocation):
+        self._x = allocation.x
+        self._y = allocation.y
+        self._width = allocation.width
+        self._height = allocation.height
+
+    def __expose_cb(self, widget, event):
+        context = widget.window.cairo_create()
+
+        # set a clip region for the expose event
+        context.rectangle(event.area.x, event.area.y,
+                               event.area.width, event.area.height)
+        context.clip()
+        self.draw(context)
+        return False
+
+    def draw(self, cr):
+        rect = self.get_allocation()
+        x = rect.x + self._BORDER_DEFAULT / 2
+        y = rect.y + self._BORDER_DEFAULT / 2
+        width = rect.width - self._BORDER_DEFAULT
+        height = rect.height - self._BORDER_DEFAULT
+
+        cr.move_to(x + self._radius, y)
+        cr.arc(x + width - self._radius, y + self._radius,
+               self._radius, math.pi * 1.5, math.pi * 2)
+        cr.arc(x + width - self._radius, y + height - self._radius,
+               self._radius, 0, math.pi * 0.5)
+        cr.arc(x + self._radius, y + height - self._radius,
+               self._radius, math.pi * 0.5, math.pi)
+        cr.arc(x + self._radius, y + self._radius, self._radius,
+               math.pi, math.pi * 1.5)
+        cr.close_path()
+
+        if self.background_color is not None:
+            r, g, b, __ = self.background_color.get_rgba()
+            cr.set_source_rgb(r, g, b)
+            cr.fill_preserve()
+
+        if self.border_color is not None:
+            r, g, b, __ = self.border_color.get_rgba()
+            cr.set_source_rgb(r, g, b)
+            cr.set_line_width(self.border)
+            cr.stroke()
+
+if __name__ == '__main__':
+
+    win = gtk.Window()
+    win.connect('destroy', gtk.main_quit)
+    win.set_default_size(450, 550)
+    vbox = gtk.VBox()
+
+    box1 = RoundBox()
+    vbox.add(box1)
+    label1 = gtk.Label("Test 1")
+    box1.add(label1)
+
+    rbox = RoundBox()
+    rbox.background_color = style.Color('#FF0000')
+    vbox.add(rbox)
+    label2 = gtk.Label("Test 2")
+    rbox.add(label2)
+
+    bbox = RoundBox()
+    bbox.background_color = style.Color('#aaff33')
+    bbox.border_color = style.Color('#ff3300')
+    vbox.add(bbox)
+
+    win.add(vbox)
+    win.show_all()
+    gtk.main()
-- 
1.7.10.4



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