blob: 2c46867ba3fdf42f5f39e06d09370a063d5f8592 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
// Copyright (c) 2011 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 UI_AURA_SHELL_SHELF_LAYOUT_MANAGER_H_
#define UI_AURA_SHELL_SHELF_LAYOUT_MANAGER_H_
#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/aura/layout_manager.h"
#include "ui/gfx/compositor/layer_animation_observer.h"
#include "ui/gfx/insets.h"
#include "ui/gfx/rect.h"
namespace views {
class Widget;
}
namespace aura_shell {
namespace internal {
// ShelfLayoutManager is a layout manager responsible for the launcher.
// Also supports showing and hiding the launcher/status area
// as well as positioning them.
class ShelfLayoutManager : public aura::LayoutManager,
public ui::LayerAnimationObserver {
public:
ShelfLayoutManager(views::Widget* launcher,
views::Widget* status);
virtual ~ShelfLayoutManager();
bool in_layout() const { return in_layout_; }
// Stops any animations and sets the bounds of the launcher and status
// widgets.
void LayoutShelf();
// Sets the visbility of the shelf to |visible|.
void SetVisible(bool visible);
// Overridden from aura::LayoutManager:
virtual void OnWindowResized() OVERRIDE;
virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
virtual void OnChildWindowVisibilityChanged(aura::Window* child,
bool visible) OVERRIDE;
virtual void SetChildBounds(aura::Window* child,
const gfx::Rect& requested_bounds) OVERRIDE;
private:
struct TargetBounds {
gfx::Rect launcher_bounds;
gfx::Rect status_bounds;
gfx::Insets work_area_insets;
};
// Stops any animations.
void StopAnimating();
// Calculates the target bounds assuming visibility of |visibile|.
void CalculateTargetBounds(bool visible,
TargetBounds* target_bounds);
// Animates |widget| to the specified bounds and opacity.
void AnimateWidgetTo(views::Widget* widget,
const gfx::Rect& target_bounds,
float target_opacity);
// LayerAnimationObserver overrides:
virtual void OnLayerAnimationEnded(
const ui::LayerAnimationSequence* sequence) OVERRIDE;
virtual void OnLayerAnimationAborted(
const ui::LayerAnimationSequence* sequence) OVERRIDE {}
virtual void OnLayerAnimationScheduled(
const ui::LayerAnimationSequence* sequence) OVERRIDE {}
// Are we animating?
bool animating_;
// True when inside LayoutShelf method. Used to prevent calling LayoutShelf
// again from SetChildBounds().
bool in_layout_;
// Current visibility. When the visibility changes this field is reset once
// the animation completes.
bool visible_;
// Max height needed.
int max_height_;
views::Widget* launcher_;
views::Widget* status_;
DISALLOW_COPY_AND_ASSIGN(ShelfLayoutManager);
};
} // namespace internal
} // namespace aura_shell
#endif // UI_AURA_SHELL_SHELF_LAYOUT_MANAGER_H_
|
