diff --git a/js/ui/viewSelector.js b/js/ui/viewSelector.js index e7d9b1dfb..f80ee3139 100644 --- a/js/ui/viewSelector.js +++ b/js/ui/viewSelector.js @@ -49,6 +49,77 @@ function getTermsForSearchString(searchString) { return terms; } +const EDGE_THRESHOLD = 20; +const DRAG_DISTANCE = 80; + +const EdgeDragAction = new Lang.Class({ + Name: 'EdgeDragAction', + Extends: Clutter.GestureAction, + + _init : function(side) { + this.parent(); + this._side = side; + this.set_n_touch_points(1); + + global.display.connect('grab-op-begin', Lang.bind(this, function() { + this.cancel(); + })); + }, + + _getMonitorRect : function (x, y) { + let rect = new Meta.Rectangle({ x: x - 1, y: y - 1, width: 1, height: 1 }); + let monitorIndex = global.screen.get_monitor_index_for_rect(rect); + + return global.screen.get_monitor_geometry(monitorIndex); + }, + + vfunc_gesture_prepare : function(action, actor) { + if (this.get_n_current_points() == 0) + return false; + + let [x, y] = this.get_press_coords(0); + let monitorRect = this._getMonitorRect(x, y); + + return ((this._side == St.Side.LEFT && x < monitorRect.x + EDGE_THRESHOLD) || + (this._side == St.Side.RIGHT && x > monitorRect.x + monitorRect.width - EDGE_THRESHOLD) || + (this._side == St.Side.TOP && y < monitorRect.y + EDGE_THRESHOLD) || + (this._side == St.Side.BOTTOM && y > monitorRect.y + monitorRect.height - EDGE_THRESHOLD)); + }, + + vfunc_gesture_progress : function (action, actor) { + let [startX, startY] = this.get_press_coords(0); + let [x, y] = this.get_motion_coords(0); + let offsetX = Math.abs (x - startX); + let offsetY = Math.abs (y - startY); + + if (offsetX < EDGE_THRESHOLD && offsetY < EDGE_THRESHOLD) + return true; + + if ((offsetX > offsetY && + (this._side == St.Side.TOP || this._side == St.Side.BOTTOM)) || + (offsetY > offsetX && + (this._side == St.Side.LEFT || this._side == St.Side.RIGHT))) { + this.cancel(); + return false; + } + + return true; + }, + + vfunc_gesture_end : function (action, actor) { + let [startX, startY] = this.get_press_coords(0); + let [x, y] = this.get_motion_coords(0); + let monitorRect = this._getMonitorRect(startX, startY); + + if ((this._side == St.Side.TOP && y > monitorRect.y + DRAG_DISTANCE) || + (this._side == St.Side.BOTTOM && y < monitorRect.y + monitorRect.height - DRAG_DISTANCE) || + (this._side == St.Side.LEFT && x > monitorRect.x + DRAG_DISTANCE) || + (this._side == St.Side.RIGHT && x < monitorRect.x + monitorRect.width - DRAG_DISTANCE)) + this.emit('activated'); + } +}); +Signals.addSignalMethods(EdgeDragAction.prototype); + const ViewSelector = new Lang.Class({ Name: 'ViewSelector', @@ -145,6 +216,14 @@ const ViewSelector = new Lang.Class({ Shell.KeyBindingMode.OVERVIEW, Lang.bind(Main.overview, Main.overview.toggle)); + let gesture = new EdgeDragAction(St.Side.RIGHT); + gesture.connect('activated', Lang.bind(this, function() { + if (Main.overview.visible) + Main.overview.hide(); + else + this.showApps(); + })); + global.stage.add_action(gesture); }, _toggleAppsPage: function() {