| // Copyright 2013 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_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_ |
| #define ASH_WM_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/scoped_vector.h" |
| #include "ui/gfx/rect.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace aura { |
| class Window; |
| } |
| |
| namespace ui { |
| class Layer; |
| } |
| |
| namespace views { |
| class Widget; |
| } |
| |
| namespace ash { |
| |
| class ScopedWindowCopy; |
| |
| // Manages a window in the overview mode. This class allows transforming the |
| // window with a helper to determine the best fit in certain bounds and |
| // copies the window if being moved to another display. The window's state is |
| // restored on destruction of this object. |
| class ScopedTransformOverviewWindow { |
| public: |
| // The duration of transitions used for window transforms. |
| static const int kTransitionMilliseconds; |
| |
| // Returns |rect| having been shrunk to fit within |bounds| (preserving the |
| // aspect ratio). |
| static gfx::Rect ShrinkRectToFitPreservingAspectRatio( |
| const gfx::Rect& rect, |
| const gfx::Rect& bounds); |
| |
| // Returns the transform turning |src_rect| into |dst_rect|. |
| static gfx::Transform GetTransformForRect(const gfx::Rect& src_rect, |
| const gfx::Rect& dst_rect); |
| |
| explicit ScopedTransformOverviewWindow(aura::Window* window); |
| virtual ~ScopedTransformOverviewWindow(); |
| |
| // Returns true if this window selector window contains the |target|. This is |
| // used to determine if an event targetted this window. |
| bool Contains(const aura::Window* target) const; |
| |
| // Returns the original bounds of all transformed windows. |
| gfx::Rect GetBoundsInScreen() const; |
| |
| // Restores the window if it was minimized. |
| void RestoreWindow(); |
| |
| // Restores this window on exit rather than returning it to a minimized state |
| // if it was minimized on entering overview mode. |
| void RestoreWindowOnExit(); |
| |
| // Informs the ScopedTransformOverviewWindow that the window being watched was |
| // destroyed. This resets the internal window pointer to avoid calling |
| // anything on the window at destruction time. |
| void OnWindowDestroyed(); |
| |
| // Prepares for overview mode by doing any necessary actions before entering. |
| virtual void PrepareForOverview(); |
| |
| // Sets |transform| on the window and a copy of the window if the target |
| // |root_window| is not the window's root window. If |animate| the transform |
| // is animated in, otherwise it is immediately applied. |
| void SetTransform(aura::Window* root_window, |
| const gfx::Transform& transform, |
| bool animate); |
| |
| aura::Window* window() const { return window_; } |
| |
| private: |
| // Creates copies of |window| and all of its modal transient parents on the |
| // root window |target_root|. |
| void CopyWindowAndTransientParents(aura::Window* target_root, |
| aura::Window* window); |
| |
| // Applies the |transform| to the overview window and all of its transient |
| // children using animations. If |animate| the transform is animated in, |
| // otherwise it is applied immediately. |
| void SetTransformOnWindowAndTransientChildren(const gfx::Transform& transform, |
| bool animate); |
| |
| // A weak pointer to the real window in the overview. |
| aura::Window* window_; |
| |
| // Copies of the window and transient parents for a different root window. |
| ScopedVector<ScopedWindowCopy> window_copies_; |
| |
| // If true, the window was minimized and should be restored if the window |
| // was not selected. |
| bool minimized_; |
| |
| // Tracks if this window was ignored by the shelf. |
| bool ignored_by_shelf_; |
| |
| // True if the window has been transformed for overview mode. |
| bool overview_started_; |
| |
| // The original transform of the window before entering overview mode. |
| gfx::Transform original_transform_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedTransformOverviewWindow); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WM_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_ |