Move window management keybindings inside sugar.

Add a TakeScreenshot dbus method and have the shell
call it when the activity can safely take a screenshot
to use as a preview.

lib/sugar/activity/activity.py

@@ -128,6 +128,7 @@ class ActivityToolbar(gtk.Toolbar):
         self._activity.copy()
 
     def __stop_clicked_cb(self, button):
+        self._activity.take_screenshot()
         self._activity.close()
 
     def __jobject_updated_cb(self, jobject):
@@ -461,6 +462,9 @@ class Activity(Window, gtk.Container):
         else:
             return {}
 
+    def take_screenshot(self):
+        self._preview = self._get_preview()
+
     def save(self):
         """Request that the activity is saved to the Journal."""
 
@@ -594,8 +598,6 @@ class Activity(Window, gtk.Container):
         self._pservice.share_activity(self, private=private)
 
     def close(self):
-        self._preview = self._get_preview()
-
         self.save()
 
         if self._shared_activity:

lib/sugar/activity/activityservice.py

@@ -64,3 +64,7 @@ class ActivityService(dbus.service.Object):
     def Invite(self, buddy_key):
         self._activity.invite(buddy_key)
 
+    @dbus.service.method(_ACTIVITY_INTERFACE)
+    def TakeScreenshot(self):
+        self._activity.take_screenshot()
+

shell/kbdconfig

@@ -1,9 +1,3 @@
 # This is the sugar keyboard configuration for matchbox
 
-### Window operation short cuts 
-
-<Alt>n=next
-<Alt>p=prev
-<Ctrl>escape=close
-<Ctrl>Q=close
 <Alt>return=fullscreen

shell/model/homemodel.py

@@ -70,6 +70,20 @@ class HomeModel(gobject.GObject):
         screen.connect('active-window-changed',
                        self._active_window_changed_cb)
 
+    def get_previous_activity(self):
+        i = self._activities.index(self._pending_activity)
+        if i > 0:
+            return self._activities[i - 1]
+        else:
+            return None
+
+    def get_next_activity(self):
+        i = self._activities.index(self._pending_activity)
+        if i < len(self._activities) - 1:
+            return self._activities[i + 1]
+        else:
+            return None
+
     def get_pending_activity(self):
         """Returns the activity that would be seen in the Activity zoom level
 

shell/view/ActivityHost.py

@@ -72,6 +72,10 @@ class ActivityHost:
         else:
             logging.error('Invite failed, activity service not ')
 
+    def toggle_fullscreen(self):
+        fullscreen = not self._window.is_fullscreen()
+        self._window.set_fullscreen(fullscreen)
+
     def present(self):
         # wnck.Window.activate() expects a timestamp, but we don't
         # always have one, and libwnck will complain if we pass "0",

shell/view/Shell.py

@@ -160,10 +160,20 @@ class Shell(gobject.GObject):
         self._activities_starting.add(activity_type)
         activityfactory.create(activity_type)
 
+    def take_activity_screenshot(self):
+        home_model = self._model.get_home()
+        service = home_model.get_active_activity().get_service()
+        service.TakeScreenshot()
+
     def set_zoom_level(self, level):
-        if level == self._model.get_zoom_level():
+        old_level = self._model.get_zoom_level()
+        if level == old_level:
             return
 
+        if old_level == ShellModel.ZOOM_ACTIVITY and \
+           not self.get_frame().visible:
+            self.take_activity_screenshot()
+
         if level == ShellModel.ZOOM_ACTIVITY:
             if self._pending_host is not None:
                 self._pending_host.present()
@@ -173,6 +183,29 @@ class Shell(gobject.GObject):
             self._screen.toggle_showing_desktop(True)
             self._home_window.set_zoom_level(level)
 
+    def toggle_activity_fullscreen(self):
+        if self._model.get_zoom_level() == ShellModel.ZOOM_ACTIVITY:
+            self.get_current_activity().toggle_fullscreen()
+
+    def activate_previous_activity(self):
+        home_model = self._model.get_home()
+        activity = home_model.get_previous_activity()
+        if activity:
+            self.take_activity_screenshot()
+            activity.get_window().activate(1)
+
+    def activate_next_activity(self):
+        home_model = self._model.get_home()
+        activity = home_model.get_next_activity()
+        if activity:
+            self.take_activity_screenshot()
+            activity.get_window().activate(1)
+
+    def close_current_activity(self):
+        self.take_activity_screenshot()
+        if self._model.get_zoom_level() == ShellModel.ZOOM_ACTIVITY:
+            self.get_current_activity().close()
+
     def get_current_activity(self):
         return self._current_host
 

shell/view/keyhandler.py

@@ -53,8 +53,13 @@ _actions_table = {
     '0xE0'           : 'overlay',
     '0xEB'           : 'rotate',
     '<alt>r'         : 'rotate',
-    '<alt>Tab'      : 'home',
     '<alt>q'         : 'quit_emulator',
+    '<alt>tab'       : 'next_window',
+    '<alt>n'         : 'next_window',
+    '<ctrl><alt>tab' : 'previous_window',
+    '<alt>p'         : 'previous_window',
+    '<ctrl>escape'   : 'close_window',
+    '<ctrl>q'        : 'close_window'
 }
 
 class KeyHandler(object):
@@ -103,6 +108,15 @@ class KeyHandler(object):
         else:
             hw_manager.set_display_mode(hardwaremanager.COLOR_MODE)
 
+    def handle_previous_window(self):
+        self._shell.activate_previous_activity()
+
+    def handle_next_window(self):
+        self._shell.activate_next_activity()
+
+    def handle_close_window(self):
+        self._shell.close_current_activity()
+
     def handle_zoom_mesh(self):
         self._shell.set_zoom_level(ShellModel.ZOOM_MESH)
 
@@ -166,10 +180,6 @@ class KeyHandler(object):
             pid = int(os.environ['SUGAR_EMULATOR_PID'])
             os.kill(pid, signal.SIGTERM)
 
-    def handle_home(self):
-        # FIXME: finish alt+tab support
-        pass
-
     def _key_pressed_cb(self, grabber, keycode, state):
         key = grabber.get_key(keycode, state)
         logging.debug('_key_pressed_cb: %i %i %s' % (keycode, state, key))