1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "athena/activity/activity_frame_view.h"
6
7 #include "athena/activity/public/activity_view_model.h"
8 #include "athena/wm/public/window_manager.h"
9 #include "ui/base/hit_test.h"
10 #include "ui/gfx/canvas.h"
11 #include "ui/gfx/image/image_skia.h"
12 #include "ui/views/background.h"
13 #include "ui/views/controls/image_view.h"
14 #include "ui/views/controls/label.h"
15 #include "ui/views/view.h"
16 #include "ui/views/widget/widget.h"
17 #include "ui/views/widget/widget_delegate.h"
18 #include "ui/views/window/client_view.h"
19
20 namespace athena {
21 namespace {
22
23 // The icon size.
24 const int kIconSize = 32;
25
26 // The distance between the icon and the title when the icon is visible.
27 const int kIconTitleSpacing = 10;
28
29 // The height of the top border necessary to display the title without the icon.
30 const int kDefaultTitleHeight = 25;
31
32 // The height of the top border in overview mode.
33 const int kOverviewTitleHeight = 55;
34
35 // The height of the top border for fullscreen and frameless activities in
36 // overview mode.
37 const int kOverviewShortTitleHeight = 30;
38
39 // The thickness of the left, right and bottom borders in overview mode.
40 const int kOverviewBorderThickness = 5;
41
42 } // namespace
43
44 // static
45 const char ActivityFrameView::kViewClassName[] = "ActivityFrameView";
46
ActivityFrameView(views::Widget * frame,ActivityViewModel * view_model)47 ActivityFrameView::ActivityFrameView(views::Widget* frame,
48 ActivityViewModel* view_model)
49 : frame_(frame),
50 view_model_(view_model),
51 title_(new views::Label),
52 icon_(new views::ImageView),
53 in_overview_(false) {
54 title_->SetEnabledColor(SkColorSetA(SK_ColorBLACK, 0xe5));
55
56 AddChildView(title_);
57 AddChildView(icon_);
58
59 UpdateWindowTitle();
60 UpdateWindowIcon();
61
62 WindowManager::Get()->AddObserver(this);
63 }
64
~ActivityFrameView()65 ActivityFrameView::~ActivityFrameView() {
66 WindowManager::Get()->RemoveObserver(this);
67 }
68
GetBoundsForClientView() const69 gfx::Rect ActivityFrameView::GetBoundsForClientView() const {
70 gfx::Rect client_bounds = bounds();
71 client_bounds.Inset(NonClientBorderInsets());
72 return client_bounds;
73 }
74
GetWindowBoundsForClientBounds(const gfx::Rect & client_bounds) const75 gfx::Rect ActivityFrameView::GetWindowBoundsForClientBounds(
76 const gfx::Rect& client_bounds) const {
77 gfx::Rect window_bounds = client_bounds;
78 window_bounds.Inset(-NonClientBorderInsets());
79 return window_bounds;
80 }
81
NonClientHitTest(const gfx::Point & point)82 int ActivityFrameView::NonClientHitTest(const gfx::Point& point) {
83 if (!bounds().Contains(point))
84 return HTNOWHERE;
85 int client_hit_test = frame_->client_view()->NonClientHitTest(point);
86 if (client_hit_test != HTNOWHERE)
87 return client_hit_test;
88 int window_hit_test =
89 GetHTComponentForFrame(point, 0, NonClientBorderThickness(), 0, 0, false);
90 return (window_hit_test == HTNOWHERE) ? HTCAPTION : client_hit_test;
91 }
92
GetWindowMask(const gfx::Size & size,gfx::Path * window_mask)93 void ActivityFrameView::GetWindowMask(const gfx::Size& size,
94 gfx::Path* window_mask) {
95 }
96
ResetWindowControls()97 void ActivityFrameView::ResetWindowControls() {
98 }
99
UpdateWindowIcon()100 void ActivityFrameView::UpdateWindowIcon() {
101 // The activity has a frame in overview mode regardless of the value of
102 // ActivityViewModel::UsesFrame().
103 SkColor bgcolor = view_model_->GetRepresentativeColor();
104 set_background(views::Background::CreateSolidBackground(bgcolor));
105 title_->SetBackgroundColor(bgcolor);
106
107 if (view_model_->UsesFrame())
108 icon_->SetImage(view_model_->GetIcon());
109 SchedulePaint();
110 }
111
UpdateWindowTitle()112 void ActivityFrameView::UpdateWindowTitle() {
113 if (!view_model_->UsesFrame())
114 return;
115 title_->SetText(frame_->widget_delegate()->GetWindowTitle());
116 Layout();
117 }
118
SizeConstraintsChanged()119 void ActivityFrameView::SizeConstraintsChanged() {
120 }
121
GetPreferredSize() const122 gfx::Size ActivityFrameView::GetPreferredSize() const {
123 gfx::Size pref = frame_->client_view()->GetPreferredSize();
124 gfx::Rect bounds(0, 0, pref.width(), pref.height());
125 return frame_->non_client_view()
126 ->GetWindowBoundsForClientBounds(bounds)
127 .size();
128 }
129
GetClassName() const130 const char* ActivityFrameView::GetClassName() const {
131 return kViewClassName;
132 }
133
Layout()134 void ActivityFrameView::Layout() {
135 if (frame_->IsFullscreen() || !view_model_->UsesFrame()) {
136 title_->SetVisible(false);
137 icon_->SetVisible(false);
138 return;
139 }
140
141 title_->SetVisible(true);
142 icon_->SetVisible(in_overview_);
143
144 gfx::Size preferred_title_size = title_->GetPreferredSize();
145 int top_height = NonClientTopBorderHeight();
146 int title_x = 0;
147 if (in_overview_) {
148 int edge = (top_height - kIconSize) / 2;
149 icon_->SetBounds(edge, edge, kIconSize, kIconSize);
150
151 title_x = icon_->bounds().right() + kIconTitleSpacing;
152 } else {
153 title_x = (width() - preferred_title_size.width()) / 2;
154 }
155
156 title_->SetBounds(title_x,
157 (top_height - preferred_title_size.height()) / 2,
158 preferred_title_size.width(),
159 preferred_title_size.height());
160 }
161
OnPaintBackground(gfx::Canvas * canvas)162 void ActivityFrameView::OnPaintBackground(gfx::Canvas* canvas) {
163 View::OnPaintBackground(canvas);
164
165 // Paint a border around the client view.
166 gfx::Rect border_bounds = GetLocalBounds();
167 border_bounds.Inset(NonClientBorderInsets());
168 border_bounds.Inset(-1, -1, 0, 0);
169 canvas->DrawRect(border_bounds, SkColorSetA(SK_ColorGRAY, 0x7f));
170 }
171
OnOverviewModeEnter()172 void ActivityFrameView::OnOverviewModeEnter() {
173 view_model_->PrepareContentsForOverview();
174 in_overview_ = true;
175 InvalidateLayout();
176 frame_->client_view()->InvalidateLayout();
177 frame_->GetRootView()->Layout();
178 SchedulePaint();
179 }
180
OnOverviewModeExit()181 void ActivityFrameView::OnOverviewModeExit() {
182 in_overview_ = false;
183 InvalidateLayout();
184 frame_->client_view()->InvalidateLayout();
185 frame_->GetRootView()->Layout();
186 SchedulePaint();
187 view_model_->ResetContentsView();
188 }
189
OnSplitViewModeEnter()190 void ActivityFrameView::OnSplitViewModeEnter() {
191 }
192
OnSplitViewModeExit()193 void ActivityFrameView::OnSplitViewModeExit() {
194 }
195
NonClientBorderInsets() const196 gfx::Insets ActivityFrameView::NonClientBorderInsets() const {
197 int border_thickness = NonClientBorderThickness();
198 return gfx::Insets(NonClientTopBorderHeight(),
199 border_thickness,
200 border_thickness,
201 border_thickness);
202 }
203
NonClientBorderThickness() const204 int ActivityFrameView::NonClientBorderThickness() const {
205 return in_overview_ ? kOverviewBorderThickness : 0;
206 }
207
NonClientTopBorderHeight() const208 int ActivityFrameView::NonClientTopBorderHeight() const {
209 if (frame_->IsFullscreen() || !view_model_->UsesFrame())
210 return in_overview_ ? kOverviewShortTitleHeight : 0;
211 return in_overview_ ? kOverviewTitleHeight : kDefaultTitleHeight;
212 }
213
214 } // namespace athena
215