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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef ASH_WM_WORKSPACE_WORKSPACE_EVENT_HANDLER_H_
- #define ASH_WM_WORKSPACE_WORKSPACE_EVENT_HANDLER_H_
- #include "ash/ash_export.h"
- #include "ash/wm/workspace/multi_window_resize_controller.h"
- #include "ui/events/event_handler.h"
- namespace aura {
- class Window;
- }
- namespace ui {
- class GestureEvent;
- class MouseEvent;
- }
- namespace ash {
- class WindowState;
- class WorkspaceEventHandlerTestHelper;
- // Handles events on workspace windows, such as double-click on the resize edge
- // to maximize in one dimension.
- class ASH_EXPORT WorkspaceEventHandler : public ui::EventHandler {
- public:
- explicit WorkspaceEventHandler(aura::Window* workspace_window);
- WorkspaceEventHandler(const WorkspaceEventHandler&) = delete;
- WorkspaceEventHandler& operator=(const WorkspaceEventHandler&) = delete;
- ~WorkspaceEventHandler() override;
- // ui::EventHandler:
- void OnMouseEvent(ui::MouseEvent* event) override;
- void OnGestureEvent(ui::GestureEvent* event) override;
- private:
- friend class WorkspaceEventHandlerTestHelper;
- // Determines if |event| corresponds to a double click on a resize edge, and
- // if so toggles the width/height of the window (width when the left or right
- // edge is double clicked, height when the top or bottom edge is double
- // clicked) between its restored state and the full available width/height of
- // the workspace.
- void HandleResizeDoubleClick(WindowState* window_state,
- ui::MouseEvent* event);
- aura::Window* workspace_window_;
- MultiWindowResizeController multi_window_resize_controller_;
- // The non-client component for the target of a MouseEvent or GestureEvent.
- // Events can be destructive to the window tree, which can cause the
- // component of a ui::EF_IS_DOUBLE_CLICK event to no longer be the same as
- // that of the initial click. Acting on a double click should only occur for
- // matching components. This will be set for left clicks, and tap events.
- int click_component_;
- };
- } // namespace ash
- #endif // ASH_WM_WORKSPACE_WORKSPACE_EVENT_HANDLER_H_
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