Refactored global key handling and frame logic.

shell/view/frame/frame.py

@@ -13,6 +13,7 @@
 # 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 logging
 
 import gtk
 import gobject
@@ -77,38 +78,36 @@ class _MouseListener(object):
                   _FRAME_HIDING_DELAY, self._hide_frame_timeout_cb)
 
 class _KeyListener(object):
+    _HIDDEN = 1
+    _SHOWN_PRESSED = 2
+    _SHOWN_REPEAT = 3
+    _SHOWN_RELEASED = 4
+
     def __init__(self, frame):
         self._frame = frame
-        self._hide_sid = 0
+        self._state = _KeyListener._HIDDEN
 
     def key_press(self):
         if self._frame.mode != MODE_NONE and \
            self._frame.mode != MODE_KEYBOARD:
             return
 
-        if self._frame.visible:
-            self._hide_frame()
-        else:
-            self._show_frame()
+        if self._state == _KeyListener._HIDDEN:
+            self._frame.show()
+            self._frame.mode = MODE_KEYBOARD
+            self._state = _KeyListener._SHOWN_PRESSED
+        elif self._state == _KeyListener._SHOWN_PRESSED:
+            self._state = _KeyListener._SHOWN_REPEAT
+        elif self._state == _KeyListener._SHOWN_RELEASED:
+            self._frame.hide()
+            self._state = _KeyListener._HIDDEN
 
     def key_release(self):
-        self._hide_frame()
-
-    def _hide_frame_timeout_cb(self):
-        self._frame.hide()
-        return False
-
-    def _show_frame(self):
-        if self._hide_sid != 0:
-            gobject.source_remove(self._hide_sid)
-        self._frame.show()
-        self._frame.mode = MODE_KEYBOARD
-
-    def _hide_frame(self):
-        if self._hide_sid != 0:
-            gobject.source_remove(self._hide_sid)
-        self._hide_sid = gobject.timeout_add(
-                        100, self._hide_frame_timeout_cb)
+        if self._state == _KeyListener._SHOWN_PRESSED:
+            self._state = _KeyListener._SHOWN_RELEASED
+        elif self._state == _KeyListener._SHOWN_REPEAT:
+            self._frame.hide()
+            self._state = _KeyListener._HIDDEN
 
 class Frame(object):
     def __init__(self, shell):

shell/view/keyhandler.py

@@ -1,8 +1,10 @@
 import os
 import signal
+import logging
 
 import dbus
 import gobject
+import gtk
 
 from sugar import env
 from hardware import hardwaremanager
@@ -46,6 +48,9 @@ class KeyHandler(object):
         self._shell = shell
         self._audio_manager = hardwaremanager.get_audio_manager()
         self._screen_rotation = 0
+        self._key_pressed = None
+        self._keycode_pressed = 0
+        self._keystate_pressed = 0
 
         self._key_grabber = KeyGrabber()
         self._key_grabber.connect('key-pressed',
@@ -166,16 +171,42 @@ class KeyHandler(object):
         # FIXME: finish alt+tab support
         pass
 
-    def _key_pressed_cb(self, grabber, key):
-        action = _actions_table[key]
-        method = getattr(self, 'handle_' + action)
-        method()
+    def _key_pressed_cb(self, grabber, keycode, state):
+        key = grabber.get_key(keycode, state)
+        if key:
+            self._key_pressed = key
+            self._keycode_pressed = keycode
+            self._keystate_pressed = state
+            gtk.gdk.keyboard_grab(gtk.gdk.get_default_root_window(),
+                                  owner_events=False, time=0L)
 
-    def _key_released_cb(self, grabber, key):
-        if key == '<shft><alt>F9':
-            self._shell.get_frame().notify_key_release()
-        elif key == '0x93':
-            self._shell.get_frame().notify_key_release()
+            action = _actions_table[key]
+            method = getattr(self, 'handle_' + action)
+            method()
+
+            return True
+
+        return False
+
+    def _key_released_cb(self, grabber, keycode, state):
+        if self._keycode_pressed == keycode:
+            self._keycode_pressed = 0
+
+        if self._keystate_pressed == state:
+            self._keystate_pressed = 0
+
+        if not self._keycode_pressed and not self._keystate_pressed and \
+           self._key_pressed:
+            gtk.gdk.keyboard_ungrab(time=0L)
+
+            if self._key_pressed == '<alt>f':
+                self._shell.get_frame().notify_key_release()
+            elif self._key_pressed == '0x93':
+                self._shell.get_frame().notify_key_release()
+
+            return True
+
+        return False
 
     def _toggle_console_visibility_cb(self):
         bus = dbus.SessionBus()