Exemplo n.º 1
0
    def __init__(self):

        self._visible = False
        self._force_to_top = False
        self._last_pos = None

        self._dwell_progress = DwellProgress()
        self._dwell_begin_timer = None
        self._dwell_timer = None
        self._no_more_dwelling = False

        Gtk.Window.__init__(
            self,
            type_hint=self._get_window_type_hint(),
            skip_taskbar_hint=True,
            skip_pager_hint=True,
            has_resize_grip=False,
            urgency_hint=False,
            decorated=False,
            accept_focus=False,
            opacity=0.75,
            width_request=self.MINIMUM_SIZE,
            height_request=self.MINIMUM_SIZE,
        )

        WindowRectTracker.__init__(self)
        WindowManipulator.__init__(self)

        self.set_keep_above(True)

        # use transparency if available
        visual = Gdk.Screen.get_default().get_rgba_visual()
        if visual:
            self.set_visual(visual)

        # set up event handling
        self.add_events(
            Gdk.EventMask.BUTTON_PRESS_MASK | Gdk.EventMask.BUTTON_RELEASE_MASK | Gdk.EventMask.POINTER_MOTION_MASK
        )

        self.connect("button-press-event", self._on_button_press_event)
        self.connect("motion-notify-event", self._on_motion_notify_event)
        self.connect("button-release-event", self._on_button_release_event)
        self.connect("draw", self._on_draw)
        self.connect("configure-event", self._on_configure_event)
        self.connect("realize", self._on_realize_event)
        self.connect("unrealize", self._on_unrealize_event)
        self.connect("enter-notify-event", self._on_mouse_enter)
        self.connect("leave-notify-event", self._on_mouse_leave)

        # default coordinates of the iconpalette on the screen
        self.set_min_window_size(self.MINIMUM_SIZE, self.MINIMUM_SIZE)
        # self.set_default_size(1, 1)  # no flashing on left screen edge in unity
        self.restore_window_rect()

        # Realize the window. Test changes to this in all supported
        # environments. It's all too easy to have the icp not show up reliably.
        self.update_window_options()
        self.hide()

        once = CallOnce(100).enqueue  # call at most once per 100ms
        rect_changed = lambda x: once(self._on_config_rect_changed)
        if 0:  # FIXME
            config.icp_position_notify_add(rect_changed)
            config.icp_size_notify_add(rect_changed)

            config.icp_resize_handles_notify_add(lambda x: self.update_resize_handles())

        self.update_sticky_state()
        self.update_resize_handles()
Exemplo n.º 2
0
class IconPalette(Gtk.Window, WindowRectTracker, WindowManipulator):
    """
    Class that creates a movable and resizable floating window without
    decorations. The window shows the icon of onboard scaled to fit to the
    window and a resize grip that honors the desktop theme in use.

    Onboard offers an option to the user to make the window appear
    whenever the user hides the onscreen keyboard. The user can then
    click on the window to hide it and make the onscreen keyboard
    reappear.
    """

    __gsignals__ = {str("activated"): (GObject.SIGNAL_RUN_LAST, GObject.TYPE_NONE, ())}

    """ Minimum size of the IconPalette """
    MINIMUM_SIZE = 20

    _layout_view = None

    def __init__(self):

        self._visible = False
        self._force_to_top = False
        self._last_pos = None

        self._dwell_progress = DwellProgress()
        self._dwell_begin_timer = None
        self._dwell_timer = None
        self._no_more_dwelling = False

        Gtk.Window.__init__(
            self,
            type_hint=self._get_window_type_hint(),
            skip_taskbar_hint=True,
            skip_pager_hint=True,
            has_resize_grip=False,
            urgency_hint=False,
            decorated=False,
            accept_focus=False,
            opacity=0.75,
            width_request=self.MINIMUM_SIZE,
            height_request=self.MINIMUM_SIZE,
        )

        WindowRectTracker.__init__(self)
        WindowManipulator.__init__(self)

        self.set_keep_above(True)

        # use transparency if available
        visual = Gdk.Screen.get_default().get_rgba_visual()
        if visual:
            self.set_visual(visual)

        # set up event handling
        self.add_events(
            Gdk.EventMask.BUTTON_PRESS_MASK | Gdk.EventMask.BUTTON_RELEASE_MASK | Gdk.EventMask.POINTER_MOTION_MASK
        )

        self.connect("button-press-event", self._on_button_press_event)
        self.connect("motion-notify-event", self._on_motion_notify_event)
        self.connect("button-release-event", self._on_button_release_event)
        self.connect("draw", self._on_draw)
        self.connect("configure-event", self._on_configure_event)
        self.connect("realize", self._on_realize_event)
        self.connect("unrealize", self._on_unrealize_event)
        self.connect("enter-notify-event", self._on_mouse_enter)
        self.connect("leave-notify-event", self._on_mouse_leave)

        # default coordinates of the iconpalette on the screen
        self.set_min_window_size(self.MINIMUM_SIZE, self.MINIMUM_SIZE)
        # self.set_default_size(1, 1)  # no flashing on left screen edge in unity
        self.restore_window_rect()

        # Realize the window. Test changes to this in all supported
        # environments. It's all too easy to have the icp not show up reliably.
        self.update_window_options()
        self.hide()

        once = CallOnce(100).enqueue  # call at most once per 100ms
        rect_changed = lambda x: once(self._on_config_rect_changed)
        if 0:  # FIXME
            config.icp_position_notify_add(rect_changed)
            config.icp_size_notify_add(rect_changed)

            config.icp_resize_handles_notify_add(lambda x: self.update_resize_handles())

        self.update_sticky_state()
        self.update_resize_handles()

    def cleanup(self):
        WindowRectTracker.cleanup(self)

    def set_layout_view(self, view):
        self._layout_view = view
        self.queue_draw()

    def get_color_scheme(self):
        if self._layout_view:
            return self._layout_view.get_color_scheme()
        return None

    def _on_configure_event(self, widget, event):
        self.update_window_rect()

    def on_drag_initiated(self):
        self.stop_save_position_timer()
        self._stop_dwelling()

    def on_drag_done(self):
        self.update_window_rect()
        # self.start_save_position_timer()
        self._no_more_dwelling = True

    def _on_realize_event(self, user_data):
        """ Gdk window created """
        set_unity_property(self)
        if config.is_force_to_top():
            self.get_window().set_override_redirect(True)
        self.restore_window_rect(True)

    def _on_unrealize_event(self, user_data):
        """ Gdk window destroyed """
        self.set_type_hint(self._get_window_type_hint())

    def _get_window_type_hint(self):
        if config.is_force_to_top():
            return Gdk.WindowTypeHint.NORMAL
        else:
            return Gdk.WindowTypeHint.UTILITY

    def update_window_options(self, startup=False):
        if not config.xid_mode:  # not when embedding

            # (re-)create the gdk window?
            force_to_top = config.is_force_to_top()

            if self._force_to_top != force_to_top:
                self._force_to_top = force_to_top

                visible = self._visible  # visible before?

                if self.get_realized():  # not starting up?
                    self.hide()
                    self.unrealize()

                self.realize()

                if visible:
                    self.show()

    def update_sticky_state(self):
        if not config.xid_mode:
            if config.get_sticky_state():
                self.stick()
            else:
                self.unstick()

    def update_resize_handles(self):
        """ Tell WindowManipulator about the active resize handles """
        self.set_drag_handles(config.icp_resize_handles)

    def get_drag_threshold(self):
        """ Overload for WindowManipulator """
        return config.get_drag_threshold()

    def _on_button_press_event(self, widget, event):
        """
        Save the pointer position.
        """
        if event.button == 1 and event.window == self.get_window():
            self.enable_drag_protection(True)
            sequence = InputSequence()
            sequence.init_from_button_event(event)
            self.handle_press(sequence, move_on_background=True)
            if self.is_moving():
                self.reset_drag_protection()  # force threshold
        return False

    def _on_motion_notify_event(self, widget, event):
        """
        Move the window if the pointer has moved more than the DND threshold.
        """
        sequence = InputSequence()
        sequence.init_from_motion_event(event)
        self.handle_motion(sequence, fallback=True)
        self.set_drag_cursor_at((event.x, event.y))

        # start dwelling if nothing else is going on
        point = (event.x, event.y)
        hit = self.hit_test_move_resize(point)
        if hit is None:
            if (
                not self.is_drag_initiated()
                and not self._is_dwelling()
                and not self._no_more_dwelling
                and not config.is_hover_click_active()
            ):
                self._start_dwelling()
        else:
            self._stop_dwelling()  # allow resizing in peace

        return False

    def _on_button_release_event(self, widget, event):
        """
        Save the window geometry, hide the IconPalette and
        emit the "activated" signal.
        """
        result = False

        if event.button == 1 and event.window == self.get_window() and not self.is_drag_active():
            self.emit("activated")
            result = True

        self.stop_drag()
        self.set_drag_cursor_at((event.x, event.y))

        return result

    def _on_mouse_enter(self, widget, event):
        pass

    def _on_mouse_leave(self, widget, event):
        self._stop_dwelling()
        self._no_more_dwelling = False

    def _on_draw(self, widget, cr):
        """
        Draw the onboard icon.
        """
        if not Gtk.cairo_should_draw_window(cr, self.get_window()):
            return False

        rect = Rect(0.0, 0.0, float(self.get_allocated_width()), float(self.get_allocated_height()))
        color_scheme = self.get_color_scheme()

        # clear background
        cr.save()
        cr.set_operator(cairo.OPERATOR_CLEAR)
        cr.paint()
        cr.restore()

        # draw background color
        background_rgba = [0.0, 0.0, 0.7, 0.8]  # list(color_scheme.get_icon_rgba("background"))

        if Gdk.Screen.get_default().is_composited():
            background_rgba[3] *= 0.75
            cr.set_source_rgba(*background_rgba)

            corner_radius = min(rect.w, rect.h) * 0.1

            roundrect_arc(cr, rect, corner_radius)
            cr.fill()

            # decoration frame
            line_rect = rect.deflate(1)
            cr.set_line_width(2)
            roundrect_arc(cr, line_rect, corner_radius)
            cr.stroke()
        else:
            cr.set_source_rgba(*background_rgba)
            cr.paint()

        # draw themed icon
        # self._draw_themed_icon(cr, rect, color_scheme)
        # FIXME

        # draw dwell progress
        rgba = [0.8, 0.0, 0.0, 0.5]
        bg_rgba = [0.1, 0.1, 0.1, 0.5]
        if color_scheme:
            pass  # FIXME

        dwell_rect = rect.grow(0.5)
        self._dwell_progress.draw(cr, dwell_rect, rgba, bg_rgba)

        return True

    # FIXME
    def _draw_themed_icon(self, cr, icon_rect, color_scheme):
        """ draw themed icon """
        keys = [RectKey("icon" + str(i)) for i in range(4)]

        # Default colors for the case when none of the icon keys
        # are defined in the color scheme.
        background_rgba = [1.0, 1.0, 1.0, 1.0]
        fill_rgbas = [[0.9, 0.7, 0.0, 0.75], [1.0, 1.0, 1.0, 1.0], [1.0, 1.0, 1.0, 1.0], [0.0, 0.54, 1.0, 1.0]]
        stroke_rgba = [0.0, 0.0, 0.0, 1.0]
        label_rgba = [0.0, 0.0, 0.0, 1.0]

        themed = False
        if color_scheme:
            if any(color_scheme.is_key_in_schema(key) for key in keys):
                themed = True

        # four rounded rectangles
        rects = Rect(0.0, 0.0, 100.0, 100.0).deflate(5).subdivide(2, 2, 6)
        cr.save()
        cr.scale(icon_rect.w / 100.0, icon_rect.h / 100.0)
        cr.translate(icon_rect.x, icon_rect.y)
        cr.select_font_face("sans-serif")
        cr.set_line_width(2)

        for i, key in enumerate(keys):
            rect = rects[i]

            if themed:
                fill_rgba = color_scheme.get_key_rgba(key, "fill")
                stroke_rgba = color_scheme.get_key_rgba(key, "stroke")
                label_rgba = color_scheme.get_key_rgba(key, "label")
            else:
                fill_rgba = fill_rgbas[i]

            roundrect_arc(cr, rect, 5)
            cr.set_source_rgba(*fill_rgba)
            cr.fill_preserve()

            cr.set_source_rgba(*stroke_rgba)
            cr.stroke()

            if i == 0 or i == 3:
                if i == 0:
                    letter = "O"
                else:
                    letter = "B"

                cr.set_font_size(25)
                x_bearing, y_bearing, _width, _height, x_advance, y_advance = cr.text_extents(letter)
                r = rect.align_rect(Rect(0, 0, _width, _height), 0.3, 0.33)
                cr.move_to(r.x - x_bearing, r.y - y_bearing)
                cr.set_source_rgba(*label_rgba)
                cr.show_text(letter)
                cr.new_path()

        cr.restore()

    def show(self):
        """
        Override Gtk.Widget.hide() to save the window geometry.
        """
        Gtk.Window.show(self)
        self.move_resize(*self.get_rect())  # sync with WindowRectTracker
        self._visible = True

    def hide(self):
        """
        Override Gtk.Widget.hide() to save the window geometry.
        """
        Gtk.Window.hide(self)
        self._visible = False

    def _on_config_rect_changed(self):
        """ Gsettings position or size changed """
        orientation = self.get_screen_orientation()
        rect = self.read_window_rect(orientation)
        if self.get_rect() != rect:
            self.restore_window_rect()

    def read_window_rect(self, orientation):
        """
        Read orientation dependent rect.
        Overload for WindowRectTracker.
        """
        if orientation == Orientation.LANDSCAPE:
            co = config.icp_landscape
        else:
            co = config.icp_portrait
        rect = Rect(co.x, co.y, co.width, co.height)
        return rect

    def write_window_rect(self, orientation, rect):
        """
        Write orientation dependent rect.
        Overload for WindowRectTracker.
        """
        # There are separate rects for normal and rotated screen (tablets).
        if orientation == Orientation.LANDSCAPE:
            co = config.icp_landscape
        else:
            co = config.icp_portrait

        co.settings.delay()
        co.x, co.y, co.width, co.height = rect
        co.settings.apply()

    def _is_dwelling(self):
        return bool(self._dwell_begin_timer) and (
            self._dwell_begin_timer.is_running() or self._dwell_progress.is_dwelling()
        )

    def _start_dwelling(self):
        self._stop_dwelling()
        self._dwell_begin_timer = Timer(1.5, self._on_dwell_begin_timer)
        self._no_more_dwelling = True

    def _stop_dwelling(self):
        if self._dwell_begin_timer:
            self._dwell_begin_timer.stop()
            if self._dwell_timer:
                self._dwell_timer.stop()
                self._dwell_progress.stop_dwelling()
                self.queue_draw()

    def _on_dwell_begin_timer(self):
        self._dwell_progress.start_dwelling()
        self._dwell_timer = Timer(0.025, self._on_dwell_timer)
        return False

    def _on_dwell_timer(self):
        self._dwell_progress.opacity, done = Fade.sin_fade(self._dwell_progress.dwell_start_time, 0.3, 0, 1.0)
        self.queue_draw()
        if self._dwell_progress.is_done():
            if not self.is_drag_active():
                self.emit("activated")
                self.stop_drag()
            return False
        return True