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// Copyright 2014 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_DEFAULT_STATE_H_
#define ASH_WM_DEFAULT_STATE_H_
#include "ash/wm/window_state.h"
#include "ui/gfx/display.h"
namespace ash {
namespace wm {
class SetBoundsEvent;
// DefaultState implements Ash behavior without state machine.
class DefaultState : public WindowState::State {
public:
explicit DefaultState(WindowStateType initial_state_type);
~DefaultState() override;
// WindowState::State overrides:
void OnWMEvent(WindowState* window_state, const WMEvent* event) override;
WindowStateType GetType() const override;
void AttachState(WindowState* window_state,
WindowState::State* previous_state) override;
void DetachState(WindowState* window_state) override;
private:
// Process state dependent events, such as TOGGLE_MAXIMIZED,
// TOGGLE_FULLSCREEN.
static bool ProcessCompoundEvents(WindowState* window_state,
const WMEvent* event);
// Process workspace related events, such as DISPLAY_BOUNDS_CHANGED.
static bool ProcessWorkspaceEvents(WindowState* window_state,
const WMEvent* event);
// Set the fullscreen/maximized bounds without animation.
static bool SetMaximizedOrFullscreenBounds(wm::WindowState* window_state);
static void SetBounds(WindowState* window_state,
const SetBoundsEvent* bounds_event);
static void CenterWindow(WindowState* window_state);
// Enters next state. This is used when the state moves from one to another
// within the same desktop mode.
void EnterToNextState(wm::WindowState* window_state,
wm::WindowStateType next_state_type);
// Reenters the current state. This is called when migrating from
// previous desktop mode, and the window's state needs to re-construct the
// state/bounds for this state.
void ReenterToCurrentState(wm::WindowState* window_state,
wm::WindowState::State* state_in_previous_mode);
// Animates to new window bounds based on the current and previous state type.
void UpdateBoundsFromState(wm::WindowState* window_state,
wm::WindowStateType old_state_type);
// The current type of the window.
WindowStateType state_type_;
// The saved window state for the case that the state gets de-/activated.
gfx::Rect stored_bounds_;
gfx::Rect stored_restore_bounds_;
// The display state in which the mode got started.
gfx::Display stored_display_state_;
// The window state only gets remembered for DCHECK reasons.
WindowState* stored_window_state_;
DISALLOW_COPY_AND_ASSIGN(DefaultState);
};
} // namespace wm
} // namespace ash
#endif // ASH_WM_DEFAULT_STATE_H_
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