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| 1 // Copyright (c) 2012 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 "chrome/browser/chromeos/status/volume_menu_button.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/command_line.h" | |
| 10 #include "base/string_number_conversions.h" | |
| 11 #include "chrome/browser/chromeos/status/status_area_bubble.h" | |
| 12 #include "chrome/browser/chromeos/view_ids.h" | |
| 13 #include "chrome/common/chrome_switches.h" | |
| 14 #include "grit/generated_resources.h" | |
| 15 #include "grit/theme_resources.h" | |
| 16 #include "ui/base/l10n/l10n_util.h" | |
| 17 #include "ui/base/resource/resource_bundle.h" | |
| 18 #include "ui/gfx/canvas.h" | |
| 19 #include "ui/gfx/image/image.h" | |
| 20 #include "ui/views/controls/menu/menu_item_view.h" | |
| 21 #include "ui/views/controls/menu/menu_runner.h" | |
| 22 #include "ui/views/controls/menu/submenu_view.h" | |
| 23 | |
| 24 namespace chromeos { | |
| 25 | |
| 26 namespace { | |
| 27 | |
| 28 const int kMenuItemId = 100; // arbitrary menu id. | |
| 29 // TODO(achuith): Minimum width of MenuItemView is 27, which is too wide. | |
| 30 const int kVolumeMenuWidth = 27; | |
| 31 const int kVolumeIconWidth = 20; | |
| 32 | |
| 33 bool ShouldShowStatusAreaVolume() { | |
| 34 return CommandLine::ForCurrentProcess()-> | |
| 35 HasSwitch(switches::kShowVolumeStatus); | |
| 36 } | |
| 37 | |
| 38 //////////////////////////////////////////////////////////////////////////////// | |
| 39 // AudioHandler helpers | |
| 40 | |
| 41 // Used when not running on a ChromeOS device. | |
| 42 static int g_volume_percent = 0; | |
| 43 | |
| 44 int GetVolumePercent() { | |
| 45 AudioHandler* audio_handler = AudioHandler::GetInstance(); | |
| 46 if (audio_handler) | |
| 47 return audio_handler->IsMuted() ? 0 : audio_handler->GetVolumePercent(); | |
| 48 return g_volume_percent; | |
| 49 } | |
| 50 | |
| 51 void SetVolumePercent(int percent) { | |
| 52 AudioHandler* audio_handler = AudioHandler::GetInstance(); | |
| 53 if (audio_handler) | |
| 54 audio_handler->SetVolumePercent(percent); | |
| 55 g_volume_percent = percent; | |
| 56 } | |
| 57 | |
| 58 void AddVolumeObserver(AudioHandler::VolumeObserver* volume_observer) { | |
| 59 AudioHandler::GetInstance()->AddVolumeObserver(volume_observer); | |
| 60 } | |
| 61 | |
| 62 void RemoveVolumeObserver(AudioHandler::VolumeObserver* volume_observer) { | |
| 63 if (AudioHandler::GetInstance()) | |
| 64 AudioHandler::GetInstance()->RemoveVolumeObserver(volume_observer); | |
| 65 } | |
| 66 | |
| 67 //////////////////////////////////////////////////////////////////////////////// | |
| 68 // SkBitmap helpers | |
| 69 | |
| 70 const SkBitmap* GetImageNamed(int image_index) { | |
| 71 return ResourceBundle::GetSharedInstance(). | |
| 72 GetImageNamed(image_index).ToSkBitmap(); | |
| 73 } | |
| 74 | |
| 75 const SkBitmap* GetIcon() { | |
| 76 const int volume_percent = GetVolumePercent(); | |
| 77 int image_index = IDR_STATUSBAR_VOLUME_ICON_MUTE; | |
| 78 | |
| 79 if (volume_percent > 67) | |
| 80 image_index = IDR_STATUSBAR_VOLUME_ICON3; | |
| 81 else if (volume_percent > 33) | |
| 82 image_index = IDR_STATUSBAR_VOLUME_ICON2; | |
| 83 else if (volume_percent > 0) | |
| 84 image_index = IDR_STATUSBAR_VOLUME_ICON1; | |
| 85 | |
| 86 return GetImageNamed(image_index); | |
| 87 } | |
| 88 | |
| 89 //////////////////////////////////////////////////////////////////////////////// | |
| 90 // VolumeControlView | |
| 91 | |
| 92 class VolumeControlView : public views::View, | |
| 93 public AudioHandler::VolumeObserver { | |
| 94 public: | |
| 95 explicit VolumeControlView(VolumeMenuButton* volume_menu_button); | |
| 96 virtual ~VolumeControlView(); | |
| 97 | |
| 98 private: | |
| 99 // views::View overrides: | |
| 100 virtual gfx::Size GetPreferredSize() OVERRIDE; | |
| 101 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | |
| 102 virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE; | |
| 103 virtual bool OnMouseDragged(const views::MouseEvent& event) OVERRIDE; | |
| 104 | |
| 105 // AudioHandler::VolumeObserver overrides: | |
| 106 virtual void OnVolumeChanged() OVERRIDE; | |
| 107 | |
| 108 VolumeMenuButton* volume_menu_button_; // not owned. | |
| 109 | |
| 110 const SkBitmap* slider_empty_; | |
| 111 const SkBitmap* slider_full_; | |
| 112 const SkBitmap* thumb_; | |
| 113 | |
| 114 int slider_w_; | |
| 115 int slider_h_; | |
| 116 int thumb_h_; | |
| 117 | |
| 118 DISALLOW_COPY_AND_ASSIGN(VolumeControlView); | |
| 119 }; | |
| 120 | |
| 121 VolumeControlView::VolumeControlView( | |
| 122 VolumeMenuButton* volume_menu_button) | |
| 123 : volume_menu_button_(volume_menu_button), | |
| 124 slider_empty_(GetImageNamed(IDR_STATUSBAR_VOLUME_SLIDER_EMPTY)), | |
| 125 slider_full_(GetImageNamed(IDR_STATUSBAR_VOLUME_SLIDER_FULL)), | |
| 126 thumb_(GetImageNamed(IDR_STATUSBAR_VOLUME_SLIDER_THUMB)), | |
| 127 slider_w_(slider_empty_->width()), | |
| 128 slider_h_(slider_empty_->height()), | |
| 129 thumb_h_(thumb_->height()) { | |
| 130 DCHECK_EQ(slider_w_, slider_full_->width()); | |
| 131 AddVolumeObserver(this); | |
| 132 } | |
| 133 | |
| 134 VolumeControlView::~VolumeControlView() { | |
| 135 RemoveVolumeObserver(this); | |
| 136 } | |
| 137 | |
| 138 gfx::Size VolumeControlView::GetPreferredSize() { | |
| 139 return gfx::Size(kVolumeMenuWidth, slider_h_ + thumb_h_); | |
| 140 } | |
| 141 | |
| 142 void VolumeControlView::OnPaint(gfx::Canvas* canvas) { | |
| 143 const int slider_x = (width() - slider_w_) / 2; | |
| 144 const int thumb_x = (width() - thumb_->width()) / 2; | |
| 145 const int slider_empty_y = thumb_->height() / 2.0; | |
| 146 | |
| 147 const int slider_empty_h = slider_h_ * (100 - GetVolumePercent()) / 100; | |
| 148 const int slider_full_y = slider_empty_h + slider_empty_y; | |
| 149 const int slider_full_h = slider_h_ - slider_empty_h; | |
| 150 | |
| 151 const int thumb_y = slider_empty_h; | |
| 152 | |
| 153 if (slider_empty_h != 0) { | |
| 154 canvas->DrawBitmapInt(*slider_empty_, | |
| 155 0, 0, slider_w_, slider_empty_h, | |
| 156 slider_x, slider_empty_y, slider_w_, slider_empty_h, | |
| 157 false); | |
| 158 } | |
| 159 | |
| 160 if (slider_full_h != 0) { | |
| 161 canvas->DrawBitmapInt(*slider_full_, | |
| 162 0, slider_empty_h, slider_w_, slider_full_h, | |
| 163 slider_x, slider_full_y, slider_w_, slider_full_h, | |
| 164 false); | |
| 165 } | |
| 166 | |
| 167 canvas->DrawBitmapInt(*thumb_, thumb_x, thumb_y); | |
| 168 } | |
| 169 | |
| 170 bool VolumeControlView::OnMousePressed(const views::MouseEvent& event) { | |
| 171 return OnMouseDragged(event); | |
| 172 } | |
| 173 | |
| 174 bool VolumeControlView::OnMouseDragged(const views::MouseEvent& event) { | |
| 175 const int slider_empty_y = thumb_->height() / 2.0; | |
| 176 const int new_volume = 100 - (std::max(std::min((event.y() - slider_empty_y), | |
| 177 slider_h_), 0) * 100 / slider_h_); | |
| 178 if (new_volume != GetVolumePercent()) { | |
| 179 SetVolumePercent(new_volume); | |
| 180 SchedulePaint(); | |
| 181 volume_menu_button_->UpdateIcon(); | |
| 182 } | |
| 183 return true; | |
| 184 } | |
| 185 | |
| 186 void VolumeControlView::OnVolumeChanged() { | |
| 187 SchedulePaint(); | |
| 188 } | |
| 189 | |
| 190 } // namespace | |
| 191 | |
| 192 //////////////////////////////////////////////////////////////////////////////// | |
| 193 // VolumeMenuButton | |
| 194 | |
| 195 VolumeMenuButton::VolumeMenuButton(StatusAreaButton::Delegate* delegate) | |
| 196 : StatusAreaButton(delegate, this) { | |
| 197 set_id(VIEW_ID_STATUS_BUTTON_VOLUME); | |
| 198 UpdateIcon(); | |
| 199 SetVisible(ShouldShowStatusAreaVolume()); | |
| 200 AddVolumeObserver(this); | |
| 201 } | |
| 202 | |
| 203 VolumeMenuButton::~VolumeMenuButton() { | |
| 204 RemoveVolumeObserver(this); | |
| 205 } | |
| 206 | |
| 207 int VolumeMenuButton::icon_width() { | |
| 208 return kVolumeIconWidth; | |
| 209 } | |
| 210 | |
| 211 void VolumeMenuButton::UpdateIcon() { | |
| 212 const int volume_percent = GetVolumePercent(); | |
| 213 string16 tooltip_text = (volume_percent == 0) | |
| 214 ? l10n_util::GetStringUTF16(IDS_STATUSBAR_VOLUME_MUTE) | |
| 215 : l10n_util::GetStringFUTF16(IDS_STATUSBAR_VOLUME_PERCENTAGE, | |
| 216 base::IntToString16(volume_percent)); | |
| 217 SetTooltipText(tooltip_text); | |
| 218 SetAccessibleName(tooltip_text); | |
| 219 | |
| 220 SetIcon(*GetIcon()); | |
| 221 SchedulePaint(); | |
| 222 } | |
| 223 | |
| 224 void VolumeMenuButton::OnLocaleChanged() { | |
| 225 UpdateIcon(); | |
| 226 } | |
| 227 | |
| 228 void VolumeMenuButton::OnVolumeChanged() { | |
| 229 UpdateIcon(); | |
| 230 } | |
| 231 | |
| 232 void VolumeMenuButton::OnMenuButtonClicked(views::View* source, | |
| 233 const gfx::Point& point) { | |
| 234 // TODO(achuith): Minimum width of MenuItemView is 27 pix which is too wide | |
| 235 // for our purposes here. | |
| 236 views::MenuItemView* menu = new views::MenuItemView(this); | |
| 237 // MenuRunner takes ownership of |menu|. | |
| 238 views::MenuRunner* menu_runner = new views::MenuRunner(menu); | |
| 239 views::MenuItemView* submenu = menu->AppendMenuItem( | |
| 240 kMenuItemId, | |
| 241 string16(), | |
| 242 views::MenuItemView::NORMAL); | |
| 243 submenu->AddChildView(new StatusAreaBubbleContentView( | |
| 244 new VolumeControlView(this), string16())); | |
| 245 menu->CreateSubmenu()->set_resize_open_menu(true); | |
| 246 menu->SetMargins(0, 0); | |
| 247 submenu->SetMargins(0, 0); | |
| 248 menu->ChildrenChanged(); | |
| 249 | |
| 250 gfx::Point screen_location; | |
| 251 views::View::ConvertPointToScreen(source, &screen_location); | |
| 252 gfx::Rect bounds(screen_location, source->size()); | |
| 253 | |
| 254 views::MenuRunner::RunResult result = menu_runner->RunMenuAt( | |
| 255 source->GetWidget()->GetTopLevelWidget(), | |
| 256 this, | |
| 257 bounds, | |
| 258 views::MenuItemView::TOPRIGHT, | |
| 259 views::MenuRunner::HAS_MNEMONICS); | |
| 260 | |
| 261 if (result != views::MenuRunner::MENU_DELETED) | |
| 262 delete menu_runner; | |
| 263 } | |
| 264 | |
| 265 } // namespace chromeos | |
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Chromium Code Reviews
Issue 10056001:
chromeos: Remove old status-area related code. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src