blob: 72f46c82a8cf78a2bbb9a67fc3efb04d88c0486b [file] [log] [blame]
// Copyright 2018 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.
#include "ash/ash_export.h"
#include "ash/wm/window_mirror_view.h"
#include "base/containers/flat_map.h"
#include "base/macros.h"
#include "ui/aura/client/transient_window_client_observer.h"
#include "ui/aura/window.h"
#include "ui/aura/window_observer.h"
#include "ui/views/view.h"
namespace ash {
namespace wm {
// A view that mirrors the client area of a window and all its transient
// descendants.
class ASH_EXPORT WindowPreviewView
: public views::View,
public aura::client::TransientWindowClientObserver,
public aura::WindowObserver {
WindowPreviewView(aura::Window* window, bool trilinear_filtering_on_init);
~WindowPreviewView() override;
// Recreate the preview views for the window and all its transient
// descendants.
void RecreatePreviews();
// views::View:
gfx::Size CalculatePreferredSize() const override;
void Layout() override;
// aura::client::TransientWindowClientObserver:
void OnTransientChildWindowAdded(aura::Window* parent,
aura::Window* transient_child) override;
void OnTransientChildWindowRemoved(aura::Window* parent,
aura::Window* transient_child) override;
// aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override;
aura::Window* window() { return window_; }
friend class WindowPreviewViewTestApi;
void AddWindow(aura::Window* window);
void RemoveWindow(aura::Window* window);
// Get the smallest rectangle that contains the bounds of all the windows in
// |mirror_views_|.
gfx::RectF GetUnionRect() const;
aura::Window* window_;
bool trilinear_filtering_on_init_;
base::flat_map<aura::Window*, WindowMirrorView*> mirror_views_;
} // namespace wm
} // namespace ash