clients: Maximize window when double touch on title bar

Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>

clients/window.c

@@ -370,6 +370,7 @@ struct window_frame {
 
 	uint32_t last_time;
 	uint32_t did_double, double_click;
+	int32_t last_id, double_id;
 };
 
 struct menu {
@@ -2429,7 +2430,23 @@ frame_touch_down_handler(struct widget *widget, struct input *input,
 {
 	struct window_frame *frame = data;
 
+	frame->double_click = 0;
+	if (time - frame->last_time <= DOUBLE_CLICK_PERIOD &&
+	    frame->last_id == id) {
+		frame->double_click = 1;
+		frame->did_double = 1;
+		frame->double_id = id;
+	} else
+		frame->did_double = 0;
+
+	frame->last_time = time;
+	frame->last_id = id;
+
+	if (frame->double_click)
+		frame_double_touch_down(frame->frame, input, id, x, y);
+	else
 		frame_touch_down(frame->frame, input, id, x, y);
+
 	frame_handle_status(frame, input, time, THEME_LOCATION_CLIENT_AREA);
 }
 
@@ -2440,6 +2457,11 @@ frame_touch_up_handler(struct widget *widget,
 {
 	struct window_frame *frame = data;
 
+	if (frame->double_id == id && frame->did_double) {
+		frame->did_double = 0;
+		frame->double_id = 0;
+		frame_double_touch_up(frame->frame, input, id);
+	} else
 		frame_touch_up(frame->frame, input, id);
 	frame_handle_status(frame, input, time, THEME_LOCATION_CLIENT_AREA);
 }

shared/cairo-util.h

@@ -217,6 +217,13 @@ enum theme_location
 frame_double_click(struct frame *frame, void *pointer,
 		   uint32_t button, enum frame_button_state state);
 
+void
+frame_double_touch_down(struct frame *frame, void *data, int32_t id,
+			int x, int y);
+
+void
+frame_double_touch_up(struct frame *frame, void *data, int32_t id);
+
 void
 frame_repaint(struct frame *frame, cairo_t *cr);
 

shared/frame.c

@@ -868,6 +868,55 @@ frame_double_click(struct frame *frame, void *data,
 	return location;
 }
 
+void
+frame_double_touch_down(struct frame *frame, void *data, int32_t id,
+			int x, int y)
+{
+	struct frame_touch *touch = frame_touch_get(frame, data);
+	struct frame_button *button = frame_find_button(frame, x, y);
+	enum theme_location location;
+
+	if (touch && button) {
+		touch->button = button;
+		frame_button_press(touch->button);
+		return;
+	}
+
+	location = theme_get_location(frame->theme, x, y,
+				      frame->width, frame->height,
+				      frame->flags & FRAME_FLAG_MAXIMIZED ?
+				      THEME_FRAME_MAXIMIZED : 0);
+
+	switch (location) {
+	case THEME_LOCATION_TITLEBAR:
+		frame->status |= FRAME_STATUS_MAXIMIZE;
+		break;
+	case THEME_LOCATION_RESIZING_TOP:
+	case THEME_LOCATION_RESIZING_BOTTOM:
+	case THEME_LOCATION_RESIZING_LEFT:
+	case THEME_LOCATION_RESIZING_RIGHT:
+	case THEME_LOCATION_RESIZING_TOP_LEFT:
+	case THEME_LOCATION_RESIZING_TOP_RIGHT:
+	case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
+	case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
+		frame->status |= FRAME_STATUS_RESIZE;
+		break;
+	default:
+		break;
+	}
+}
+
+void
+frame_double_touch_up(struct frame *frame, void *data, int32_t id)
+{
+	struct frame_touch *touch = frame_touch_get(frame, data);
+
+	if (touch && touch->button) {
+		frame_button_release(touch->button);
+		frame_touch_destroy(touch);
+	}
+}
+
 void
 frame_repaint(struct frame *frame, cairo_t *cr)
 {