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| 1 // Copyright (c) 2011 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/webui/menu_ui.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/callback.h" | |
| 10 #include "base/command_line.h" | |
| 11 #include "base/json/json_writer.h" | |
| 12 #include "base/message_loop.h" | |
| 13 #include "base/singleton.h" | |
| 14 #include "base/string_number_conversions.h" | |
| 15 #include "base/string_piece.h" | |
| 16 #include "base/utf_string_conversions.h" | |
| 17 #include "base/values.h" | |
| 18 #include "base/weak_ptr.h" | |
| 19 #include "chrome/browser/chromeos/views/native_menu_webui.h" | |
| 20 #include "chrome/browser/chromeos/views/webui_menu_widget.h" | |
| 21 #include "chrome/browser/profiles/profile.h" | |
| 22 #include "chrome/common/chrome_switches.h" | |
| 23 #include "chrome/common/jstemplate_builder.h" | |
| 24 #include "chrome/common/url_constants.h" | |
| 25 #include "content/browser/browser_thread.h" | |
| 26 #include "content/browser/tab_contents/tab_contents.h" | |
| 27 #include "content/browser/tab_contents/tab_contents_delegate.h" | |
| 28 #include "content/browser/webui/web_ui_util.h" | |
| 29 #include "grit/app_resources.h" | |
| 30 #include "grit/browser_resources.h" | |
| 31 #include "ui/base/models/menu_model.h" | |
| 32 #include "ui/base/resource/resource_bundle.h" | |
| 33 #include "ui/gfx/canvas_skia.h" | |
| 34 #include "ui/gfx/favicon_size.h" | |
| 35 #include "ui/gfx/font.h" | |
| 36 #include "views/accelerator.h" | |
| 37 #include "views/controls/menu/menu_config.h" | |
| 38 #include "views/controls/menu/menu_image_util_gtk.h" | |
| 39 #include "views/widget/widget_gtk.h" | |
| 40 | |
| 41 namespace { | |
| 42 | |
| 43 // a fake resource id for not loading extra resource. | |
| 44 const int kNoExtraResource = -1; | |
| 45 | |
| 46 // A utility function that generates css font property from gfx::Font. | |
| 47 // NOTE: Returns UTF-8. | |
| 48 std::string GetFontShorthand(const gfx::Font* font) { | |
| 49 std::string out; | |
| 50 if (font == NULL) { | |
| 51 font = &(views::MenuConfig::instance().font); | |
| 52 } | |
| 53 if (font->GetStyle() & gfx::Font::BOLD) { | |
| 54 out.append("bold "); | |
| 55 } | |
| 56 if (font->GetStyle() & gfx::Font::ITALIC) { | |
| 57 out.append("italic "); | |
| 58 } | |
| 59 if (font->GetStyle() & gfx::Font::UNDERLINED) { | |
| 60 out.append("underline "); | |
| 61 } | |
| 62 | |
| 63 // TODO(oshima): The font size from gfx::Font is too small when | |
| 64 // used in webkit. Figure out the reason. | |
| 65 out.append(base::IntToString(font->GetFontSize() + 4)); | |
| 66 out.append("px/"); | |
| 67 out.append(base::IntToString(std::max(kFaviconSize, font->GetHeight()))); | |
| 68 out.append("px \""); | |
| 69 out.append(UTF16ToUTF8(font->GetFontName())); | |
| 70 out.append("\",sans-serif"); | |
| 71 return out; | |
| 72 } | |
| 73 | |
| 74 // Creates scroll button's up image when |up| is true or | |
| 75 // down image if |up| is false. | |
| 76 SkBitmap CreateMenuScrollArrowImage(bool up) { | |
| 77 const views::MenuConfig& config = views::MenuConfig::instance(); | |
| 78 | |
| 79 int height = config.scroll_arrow_height; | |
| 80 gfx::CanvasSkia canvas(height * 2, height, false); | |
| 81 | |
| 82 if (!up) { | |
| 83 // flip the direction. | |
| 84 canvas.scale(1.0, -1.0); | |
| 85 canvas.translate(0, -height); | |
| 86 } | |
| 87 // Draw triangle. | |
| 88 SkPath path; | |
| 89 path.moveTo(height, 0); | |
| 90 path.lineTo(0, height); | |
| 91 path.lineTo(height * 2, height); | |
| 92 SkPaint paint; | |
| 93 paint.setColor(SK_ColorBLACK); | |
| 94 paint.setStyle(SkPaint::kFill_Style); | |
| 95 paint.setAntiAlias(true); | |
| 96 canvas.drawPath(path, paint); | |
| 97 return canvas.ExtractBitmap(); | |
| 98 } | |
| 99 | |
| 100 // Returns the scroll button's up image if |up| is true, or | |
| 101 // "down" image otherwise. | |
| 102 const std::string& GetImageDataUrlForMenuScrollArrow(bool up) { | |
| 103 static const std::string upImage = | |
| 104 web_ui_util::GetImageDataUrl(CreateMenuScrollArrowImage(true)); | |
| 105 static const std::string downImage = | |
| 106 web_ui_util::GetImageDataUrl(CreateMenuScrollArrowImage(false)); | |
| 107 return up ? upImage : downImage; | |
| 108 } | |
| 109 | |
| 110 // Returns the radio button's "on" image if |on| is true, or | |
| 111 // "off" image otherwise. | |
| 112 const std::string& GetImageDataUrlForRadio(bool on) { | |
| 113 static const std::string onImage = | |
| 114 web_ui_util::GetImageDataUrl(*views::GetRadioButtonImage(true)); | |
| 115 static const std::string offImage = | |
| 116 web_ui_util::GetImageDataUrl(*views::GetRadioButtonImage(false)); | |
| 117 return on ? onImage : offImage; | |
| 118 } | |
| 119 | |
| 120 /** | |
| 121 * Generates a html file that uses |menu_class| as a menu implementation. | |
| 122 * |menu_source_id| specifies the source that contains the definition of the | |
| 123 * |menu_class|, or empty string to use plain "Menu". | |
| 124 * | |
| 125 * TODO(oshima): make this template to avoid repeatedly loading the | |
| 126 * same source/css files. | |
| 127 */ | |
| 128 std::string GetMenuUIHTMLSourceFromString( | |
| 129 const chromeos::MenuSourceDelegate* delegate, | |
| 130 const base::StringPiece& menu_template, | |
| 131 const std::string& menu_class, | |
| 132 int menu_source_id, | |
| 133 int menu_css_id) { | |
| 134 #define SET_INTEGER_PROPERTY(prop) \ | |
| 135 value_config.SetInteger(#prop, menu_config.prop) | |
| 136 | |
| 137 const views::MenuConfig& menu_config = views::MenuConfig::instance(); | |
| 138 | |
| 139 DictionaryValue value_config; | |
| 140 value_config.SetString("radioOnUrl", GetImageDataUrlForRadio(true)); | |
| 141 value_config.SetString("radioOffUrl", GetImageDataUrlForRadio(false)); | |
| 142 value_config.SetString( | |
| 143 "arrowUrl", web_ui_util::GetImageDataUrlFromResource(IDR_MENU_ARROW)); | |
| 144 value_config.SetString( | |
| 145 "checkUrl", web_ui_util::GetImageDataUrlFromResource(IDR_MENU_CHECK)); | |
| 146 | |
| 147 value_config.SetString( | |
| 148 "scrollUpUrl", GetImageDataUrlForMenuScrollArrow(true)); | |
| 149 value_config.SetString( | |
| 150 "scrollDownUrl", GetImageDataUrlForMenuScrollArrow(false)); | |
| 151 | |
| 152 SET_INTEGER_PROPERTY(item_top_margin); | |
| 153 SET_INTEGER_PROPERTY(item_bottom_margin); | |
| 154 SET_INTEGER_PROPERTY(item_no_icon_top_margin); | |
| 155 SET_INTEGER_PROPERTY(item_no_icon_bottom_margin); | |
| 156 SET_INTEGER_PROPERTY(item_left_margin); | |
| 157 SET_INTEGER_PROPERTY(label_to_arrow_padding); | |
| 158 SET_INTEGER_PROPERTY(arrow_to_edge_padding); | |
| 159 SET_INTEGER_PROPERTY(icon_to_label_padding); | |
| 160 SET_INTEGER_PROPERTY(gutter_to_label); | |
| 161 SET_INTEGER_PROPERTY(check_width); | |
| 162 SET_INTEGER_PROPERTY(check_height); | |
| 163 SET_INTEGER_PROPERTY(radio_width); | |
| 164 SET_INTEGER_PROPERTY(radio_height); | |
| 165 SET_INTEGER_PROPERTY(arrow_height); | |
| 166 SET_INTEGER_PROPERTY(arrow_width); | |
| 167 SET_INTEGER_PROPERTY(gutter_width); | |
| 168 SET_INTEGER_PROPERTY(separator_height); | |
| 169 SET_INTEGER_PROPERTY(render_gutter); | |
| 170 SET_INTEGER_PROPERTY(show_mnemonics); | |
| 171 SET_INTEGER_PROPERTY(scroll_arrow_height); | |
| 172 SET_INTEGER_PROPERTY(label_to_accelerator_padding); | |
| 173 | |
| 174 if (delegate) | |
| 175 delegate->AddCustomConfigValues(&value_config); | |
| 176 | |
| 177 std::string json_config; | |
| 178 base::JSONWriter::Write(&value_config, false, &json_config); | |
| 179 | |
| 180 DictionaryValue strings; | |
| 181 | |
| 182 strings.SetString( | |
| 183 "init_script", | |
| 184 menu_class + ".decorate(document.getElementById('viewport'));" + | |
| 185 " init(" + json_config + ");"); | |
| 186 | |
| 187 if (menu_source_id == kNoExtraResource) { | |
| 188 strings.SetString("menu_source", ""); | |
| 189 } else { | |
| 190 base::StringPiece menu_source( | |
| 191 ResourceBundle::GetSharedInstance().GetRawDataResource(menu_source_id)); | |
| 192 strings.SetString("menu_source", menu_source.as_string()); | |
| 193 } | |
| 194 if (menu_css_id == kNoExtraResource) { | |
| 195 strings.SetString("menu_css", ""); | |
| 196 } else { | |
| 197 base::StringPiece menu_css( | |
| 198 ResourceBundle::GetSharedInstance().GetRawDataResource(menu_css_id)); | |
| 199 strings.SetString("menu_css", menu_css.as_string()); | |
| 200 } | |
| 201 if (delegate) | |
| 202 delegate->AddLocalizedStrings(&strings); | |
| 203 | |
| 204 return jstemplate_builder::GetI18nTemplateHtml(menu_template, &strings); | |
| 205 } | |
| 206 | |
| 207 class MenuUIHTMLSource : public ChromeURLDataManager::DataSource { | |
| 208 public: | |
| 209 MenuUIHTMLSource(const chromeos::MenuSourceDelegate* delegate, | |
| 210 const std::string& source_name, | |
| 211 const std::string& menu_class, | |
| 212 int menu_source_id, | |
| 213 int menu_css_id); | |
| 214 | |
| 215 // Called when the network layer has requested a resource underneath | |
| 216 // the path we registered. | |
| 217 virtual void StartDataRequest(const std::string& path, | |
| 218 bool is_off_the_record, | |
| 219 int request_id); | |
| 220 virtual std::string GetMimeType(const std::string&) const { | |
| 221 return "text/html"; | |
| 222 } | |
| 223 | |
| 224 private: | |
| 225 virtual ~MenuUIHTMLSource() {} | |
| 226 | |
| 227 // The menu ui the source is created for. | |
| 228 scoped_ptr<const chromeos::MenuSourceDelegate> delegate_; | |
| 229 | |
| 230 // The name of JS Menu class to use. | |
| 231 const std::string menu_class_; | |
| 232 | |
| 233 // The resource id of the JS file of the menu subclass. | |
| 234 int menu_source_id_; | |
| 235 | |
| 236 // The resource id of the CSS file of the menu subclass. | |
| 237 int menu_css_id_; | |
| 238 | |
| 239 DISALLOW_COPY_AND_ASSIGN(MenuUIHTMLSource); | |
| 240 }; | |
| 241 | |
| 242 // The handler for Javascript messages related to the "system" view. | |
| 243 class MenuHandler : public chromeos::MenuHandlerBase, | |
| 244 public base::SupportsWeakPtr<MenuHandler>, | |
| 245 public TabContentsDelegate { | |
| 246 public: | |
| 247 MenuHandler(); | |
| 248 virtual ~MenuHandler(); | |
| 249 | |
| 250 // WebUIMessageHandler implementation. | |
| 251 virtual WebUIMessageHandler* Attach(WebUI* web_ui); | |
| 252 virtual void RegisterMessages(); | |
| 253 | |
| 254 private: | |
| 255 void HandleActivate(const ListValue* values); | |
| 256 void HandleOpenSubmenu(const ListValue* values); | |
| 257 void HandleCloseSubmenu(const ListValue* values); | |
| 258 void HandleMoveInputToSubmenu(const ListValue* values); | |
| 259 void HandleMoveInputToParent(const ListValue* values); | |
| 260 void HandleCloseAll(const ListValue* values); | |
| 261 void HandleModelUpdated(const ListValue* values); | |
| 262 // This is a utility WebUI message to print debug message. | |
| 263 // Menu can't use dev tool as it lives outside of browser. | |
| 264 // TODO(oshima): This is inconvenient and figure out how we can use | |
| 265 // dev tools for menus (and other WebUI that does not belong to browser). | |
| 266 void HandleLog(const ListValue* values); | |
| 267 | |
| 268 // TabContentsDelegate implements: | |
| 269 virtual void UpdatePreferredSize(const gfx::Size& new_size); | |
| 270 virtual void LoadingStateChanged(TabContents* contents); | |
| 271 | |
| 272 virtual void OpenURLFromTab(TabContents* source, | |
| 273 const GURL& url, const GURL& referrer, | |
| 274 WindowOpenDisposition disposition, | |
| 275 PageTransition::Type transition) {} | |
| 276 virtual void NavigationStateChanged(const TabContents* source, | |
| 277 unsigned changed_flags) {} | |
| 278 virtual void AddNewContents(TabContents* source, | |
| 279 TabContents* new_contents, | |
| 280 WindowOpenDisposition disposition, | |
| 281 const gfx::Rect& initial_pos, | |
| 282 bool user_gesture) {} | |
| 283 | |
| 284 // TODO(oshima): Handle crash | |
| 285 virtual void ActivateContents(TabContents* contents) {} | |
| 286 virtual void DeactivateContents(TabContents* contents) {} | |
| 287 virtual void CloseContents(TabContents* source) {} | |
| 288 virtual void MoveContents(TabContents* source, const gfx::Rect& pos) {} | |
| 289 virtual bool IsPopup(const TabContents* source) { return false; } | |
| 290 virtual void ToolbarSizeChanged(TabContents* source, bool is_animating) {} | |
| 291 virtual void UpdateTargetURL(TabContents* source, const GURL& url) {} | |
| 292 virtual bool CanDownload(int request_id) { return false; } | |
| 293 virtual bool infobars_enabled() { return false; } | |
| 294 virtual bool ShouldEnablePreferredSizeNotifications() { return true; } | |
| 295 virtual bool CanReloadContents(TabContents* source) const { return false; } | |
| 296 | |
| 297 // True if the page is loaded. | |
| 298 bool loaded_; | |
| 299 | |
| 300 DISALLOW_COPY_AND_ASSIGN(MenuHandler); | |
| 301 }; | |
| 302 | |
| 303 //////////////////////////////////////////////////////////////////////////////// | |
| 304 // | |
| 305 // MenuUIHTMLSource | |
| 306 // | |
| 307 //////////////////////////////////////////////////////////////////////////////// | |
| 308 | |
| 309 MenuUIHTMLSource::MenuUIHTMLSource(const chromeos::MenuSourceDelegate* delegate, | |
| 310 const std::string& source_name, | |
| 311 const std::string& menu_class, | |
| 312 int menu_source_id, | |
| 313 int menu_css_id) | |
| 314 : DataSource(source_name, MessageLoop::current()), | |
| 315 delegate_(delegate), | |
| 316 menu_class_(menu_class), | |
| 317 menu_source_id_(menu_source_id), | |
| 318 menu_css_id_(menu_css_id) { | |
| 319 } | |
| 320 | |
| 321 void MenuUIHTMLSource::StartDataRequest(const std::string& path, | |
| 322 bool is_off_the_record, | |
| 323 int request_id) { | |
| 324 static const base::StringPiece menu_template( | |
| 325 ResourceBundle::GetSharedInstance().GetRawDataResource(IDR_MENU_HTML)); | |
| 326 | |
| 327 // The resource string should be pure code and should not contain | |
| 328 // i18n string. | |
| 329 const std::string menu_html = GetMenuUIHTMLSourceFromString( | |
| 330 delegate_.get(), menu_template, menu_class_, | |
| 331 menu_source_id_, menu_css_id_); | |
| 332 | |
| 333 scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes); | |
| 334 | |
| 335 // TODO(oshima): Eliminate boilerplate code. See http://crbug.com/57583 . | |
| 336 html_bytes->data.resize(menu_html.size()); | |
| 337 std::copy(menu_html.begin(), menu_html.end(), | |
| 338 html_bytes->data.begin()); | |
| 339 SendResponse(request_id, html_bytes); | |
| 340 } | |
| 341 | |
| 342 //////////////////////////////////////////////////////////////////////////////// | |
| 343 // | |
| 344 // MenuHandler | |
| 345 // | |
| 346 //////////////////////////////////////////////////////////////////////////////// | |
| 347 MenuHandler::MenuHandler() : loaded_(false) { | |
| 348 } | |
| 349 | |
| 350 MenuHandler::~MenuHandler() { | |
| 351 } | |
| 352 | |
| 353 WebUIMessageHandler* MenuHandler::Attach(WebUI* web_ui) { | |
| 354 WebUIMessageHandler* handler = WebUIMessageHandler::Attach(web_ui); | |
| 355 web_ui->tab_contents()->set_delegate(this); | |
| 356 return handler; | |
| 357 } | |
| 358 | |
| 359 void MenuHandler::RegisterMessages() { | |
| 360 web_ui_->RegisterMessageCallback( | |
| 361 "activate", | |
| 362 NewCallback(this, | |
| 363 &MenuHandler::HandleActivate)); | |
| 364 web_ui_->RegisterMessageCallback( | |
| 365 "open_submenu", | |
| 366 NewCallback(this, | |
| 367 &MenuHandler::HandleOpenSubmenu)); | |
| 368 web_ui_->RegisterMessageCallback( | |
| 369 "close_submenu", | |
| 370 NewCallback(this, | |
| 371 &MenuHandler::HandleCloseSubmenu)); | |
| 372 web_ui_->RegisterMessageCallback( | |
| 373 "move_to_submenu", | |
| 374 NewCallback(this, | |
| 375 &MenuHandler::HandleMoveInputToSubmenu)); | |
| 376 web_ui_->RegisterMessageCallback( | |
| 377 "move_to_parent", | |
| 378 NewCallback(this, | |
| 379 &MenuHandler::HandleMoveInputToParent)); | |
| 380 web_ui_->RegisterMessageCallback( | |
| 381 "close_all", | |
| 382 NewCallback(this, | |
| 383 &MenuHandler::HandleCloseAll)); | |
| 384 web_ui_->RegisterMessageCallback( | |
| 385 "model_updated", | |
| 386 NewCallback(this, | |
| 387 &MenuHandler::HandleModelUpdated)); | |
| 388 web_ui_->RegisterMessageCallback( | |
| 389 "log", | |
| 390 NewCallback(this, | |
| 391 &MenuHandler::HandleLog)); | |
| 392 } | |
| 393 | |
| 394 void MenuHandler::HandleActivate(const ListValue* values) { | |
| 395 CHECK_EQ(2U, values->GetSize()); | |
| 396 std::string index_str; | |
| 397 bool success = values->GetString(0, &index_str); | |
| 398 DCHECK(success); | |
| 399 std::string activation; | |
| 400 success = values->GetString(1, &activation); | |
| 401 DCHECK(success); | |
| 402 | |
| 403 int index; | |
| 404 success = base::StringToInt(index_str, &index); | |
| 405 DCHECK(success); | |
| 406 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 407 if (control) { | |
| 408 ui::MenuModel* model = GetMenuModel(); | |
| 409 DCHECK(model); | |
| 410 DCHECK_GE(index, 0); | |
| 411 DCHECK(activation == "close_and_activate" || | |
| 412 activation == "activate_no_close") << activation; | |
| 413 if (model->IsEnabledAt(index)) { | |
| 414 control->Activate(model, | |
| 415 index, | |
| 416 activation == "close_and_activate" ? | |
| 417 chromeos::WebUIMenuControl::CLOSE_AND_ACTIVATE : | |
| 418 chromeos::WebUIMenuControl::ACTIVATE_NO_CLOSE); | |
| 419 } | |
| 420 } | |
| 421 } | |
| 422 | |
| 423 void MenuHandler::HandleOpenSubmenu(const ListValue* values) { | |
| 424 CHECK_EQ(2U, values->GetSize()); | |
| 425 std::string index_str; | |
| 426 bool success = values->GetString(0, &index_str); | |
| 427 DCHECK(success); | |
| 428 std::string y_str; | |
| 429 success = values->GetString(1, &y_str); | |
| 430 DCHECK(success); | |
| 431 int index; | |
| 432 success = base::StringToInt(index_str, &index); | |
| 433 DCHECK(success); | |
| 434 int y; | |
| 435 success = base::StringToInt(y_str, &y); | |
| 436 DCHECK(success); | |
| 437 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 438 if (control) | |
| 439 control->OpenSubmenu(index, y); | |
| 440 } | |
| 441 | |
| 442 void MenuHandler::HandleCloseSubmenu(const ListValue* values) { | |
| 443 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 444 if (control) | |
| 445 control->CloseSubmenu(); | |
| 446 } | |
| 447 | |
| 448 void MenuHandler::HandleMoveInputToSubmenu(const ListValue* values) { | |
| 449 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 450 if (control) | |
| 451 control->MoveInputToSubmenu(); | |
| 452 } | |
| 453 | |
| 454 void MenuHandler::HandleMoveInputToParent(const ListValue* values) { | |
| 455 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 456 if (control) | |
| 457 control->MoveInputToParent(); | |
| 458 } | |
| 459 | |
| 460 void MenuHandler::HandleCloseAll(const ListValue* values) { | |
| 461 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 462 if (control) | |
| 463 control->CloseAll(); | |
| 464 } | |
| 465 | |
| 466 void MenuHandler::HandleModelUpdated(const ListValue* values) { | |
| 467 ui::MenuModel* model = GetMenuModel(); | |
| 468 if (model) | |
| 469 static_cast<chromeos::MenuUI*>(web_ui_)->ModelUpdated(model); | |
| 470 } | |
| 471 | |
| 472 void MenuHandler::HandleLog(const ListValue* values) { | |
| 473 CHECK_EQ(1U, values->GetSize()); | |
| 474 std::string msg; | |
| 475 bool success = values->GetString(0, &msg); | |
| 476 DCHECK(success); | |
| 477 DVLOG(1) << msg; | |
| 478 } | |
| 479 | |
| 480 void MenuHandler::UpdatePreferredSize(const gfx::Size& new_size) { | |
| 481 if (!loaded_) | |
| 482 return; | |
| 483 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 484 if (control) | |
| 485 control->SetSize(new_size); | |
| 486 } | |
| 487 | |
| 488 void MenuHandler::LoadingStateChanged(TabContents* contents) { | |
| 489 chromeos::WebUIMenuControl* control = GetMenuControl(); | |
| 490 if (control && !contents->is_loading()) { | |
| 491 loaded_ = true; | |
| 492 control->OnLoad(); | |
| 493 HandleModelUpdated(NULL); | |
| 494 } | |
| 495 } | |
| 496 | |
| 497 } // namespace | |
| 498 | |
| 499 namespace chromeos { | |
| 500 | |
| 501 //////////////////////////////////////////////////////////////////////////////// | |
| 502 // | |
| 503 // MenuHandlerBase | |
| 504 // | |
| 505 //////////////////////////////////////////////////////////////////////////////// | |
| 506 | |
| 507 chromeos::WebUIMenuControl* MenuHandlerBase::GetMenuControl() { | |
| 508 WebUIMenuWidget* widget = | |
| 509 chromeos::WebUIMenuWidget::FindWebUIMenuWidget( | |
| 510 web_ui_->tab_contents()->GetNativeView()); | |
| 511 if (widget) | |
| 512 return widget->webui_menu(); // NativeMenuWebUI implements WebUIMenuControl | |
| 513 else | |
| 514 return NULL; | |
| 515 } | |
| 516 | |
| 517 ui::MenuModel* MenuHandlerBase::GetMenuModel() { | |
| 518 WebUIMenuControl* control = GetMenuControl(); | |
| 519 if (control) | |
| 520 return control->GetMenuModel(); | |
| 521 else | |
| 522 return NULL; | |
| 523 } | |
| 524 | |
| 525 //////////////////////////////////////////////////////////////////////////////// | |
| 526 // | |
| 527 // MenuUI | |
| 528 // | |
| 529 //////////////////////////////////////////////////////////////////////////////// | |
| 530 | |
| 531 MenuUI::MenuUI(TabContents* contents) : WebUI(contents) { | |
| 532 MenuHandler* handler = new MenuHandler(); | |
| 533 AddMessageHandler((handler)->Attach(this)); | |
| 534 | |
| 535 contents->profile()->GetChromeURLDataManager()->AddDataSource( | |
| 536 CreateDataSource()); | |
| 537 } | |
| 538 | |
| 539 MenuUI::MenuUI(TabContents* contents, ChromeURLDataManager::DataSource* source) | |
| 540 : WebUI(contents) { | |
| 541 MenuHandler* handler = new MenuHandler(); | |
| 542 AddMessageHandler((handler)->Attach(this)); | |
| 543 | |
| 544 contents->profile()->GetChromeURLDataManager()->AddDataSource(source); | |
| 545 } | |
| 546 | |
| 547 void MenuUI::ModelUpdated(const ui::MenuModel* model) { | |
| 548 DictionaryValue json_model; | |
| 549 ListValue* items = new ListValue(); | |
| 550 json_model.Set("items", items); | |
| 551 int max_icon_width = 0; | |
| 552 bool has_accelerator = false; | |
| 553 for (int index = 0; index < model->GetItemCount(); ++index) { | |
| 554 ui::MenuModel::ItemType type = model->GetTypeAt(index); | |
| 555 DictionaryValue* item; | |
| 556 switch (type) { | |
| 557 case ui::MenuModel::TYPE_SEPARATOR: | |
| 558 item = CreateMenuItem(model, index, "separator", | |
| 559 &max_icon_width, &has_accelerator); | |
| 560 break; | |
| 561 case ui::MenuModel::TYPE_RADIO: | |
| 562 max_icon_width = std::max(max_icon_width, 12); | |
| 563 item = CreateMenuItem(model, index, "radio", | |
| 564 &max_icon_width, &has_accelerator); | |
| 565 break; | |
| 566 case ui::MenuModel::TYPE_SUBMENU: | |
| 567 item = CreateMenuItem(model, index, "submenu", | |
| 568 &max_icon_width, &has_accelerator); | |
| 569 break; | |
| 570 case ui::MenuModel::TYPE_COMMAND: | |
| 571 item = CreateMenuItem(model, index, "command", | |
| 572 &max_icon_width, &has_accelerator); | |
| 573 break; | |
| 574 case ui::MenuModel::TYPE_CHECK: | |
| 575 // Add space even when unchecked. | |
| 576 max_icon_width = std::max(max_icon_width, 12); | |
| 577 item = CreateMenuItem(model, index, "check", | |
| 578 &max_icon_width, &has_accelerator); | |
| 579 break; | |
| 580 default: | |
| 581 // TODO(oshima): We don't support BUTTOM_ITEM for now. | |
| 582 NOTREACHED(); | |
| 583 continue; | |
| 584 } | |
| 585 items->Set(index, item); | |
| 586 } | |
| 587 WebUIMenuWidget* widget = | |
| 588 chromeos::WebUIMenuWidget::FindWebUIMenuWidget( | |
| 589 tab_contents()->GetNativeView()); | |
| 590 DCHECK(widget); | |
| 591 json_model.SetInteger("maxIconWidth", max_icon_width); | |
| 592 json_model.SetBoolean("isRoot", widget->is_root()); | |
| 593 json_model.SetBoolean("hasAccelerator", has_accelerator); | |
| 594 CallJavascriptFunction("updateModel", json_model); | |
| 595 } | |
| 596 | |
| 597 DictionaryValue* MenuUI::CreateMenuItem(const ui::MenuModel* model, | |
| 598 int index, | |
| 599 const char* type, | |
| 600 int* max_icon_width, | |
| 601 bool* has_accel) const { | |
| 602 // Note: Web UI uses '&' as mnemonic. | |
| 603 string16 label16 = model->GetLabelAt(index); | |
| 604 DictionaryValue* item = new DictionaryValue(); | |
| 605 | |
| 606 item->SetString("type", type); | |
| 607 item->SetString("label", label16); | |
| 608 item->SetBoolean("enabled", model->IsEnabledAt(index)); | |
| 609 item->SetBoolean("visible", model->IsVisibleAt(index)); | |
| 610 item->SetBoolean("checked", model->IsItemCheckedAt(index)); | |
| 611 item->SetInteger("command_id", model->GetCommandIdAt(index)); | |
| 612 item->SetString( | |
| 613 "font", GetFontShorthand(model->GetLabelFontAt(index))); | |
| 614 SkBitmap icon; | |
| 615 if (model->GetIconAt(index, &icon) && !icon.isNull() && !icon.empty()) { | |
| 616 item->SetString("icon", web_ui_util::GetImageDataUrl(icon)); | |
| 617 *max_icon_width = std::max(*max_icon_width, icon.width()); | |
| 618 } | |
| 619 views::Accelerator menu_accelerator; | |
| 620 if (model->GetAcceleratorAt(index, &menu_accelerator)) { | |
| 621 item->SetString("accel", menu_accelerator.GetShortcutText()); | |
| 622 *has_accel = true; | |
| 623 } | |
| 624 return item; | |
| 625 } | |
| 626 | |
| 627 // static | |
| 628 ChromeURLDataManager::DataSource* MenuUI::CreateMenuUIHTMLSource( | |
| 629 const MenuSourceDelegate* delegate, | |
| 630 const std::string& source_name, | |
| 631 const std::string& menu_class, | |
| 632 int menu_source_id, | |
| 633 int menu_css_id) { | |
| 634 return new MenuUIHTMLSource(delegate, | |
| 635 source_name, | |
| 636 menu_class, | |
| 637 menu_source_id, | |
| 638 menu_css_id); | |
| 639 } | |
| 640 | |
| 641 // static | |
| 642 bool MenuUI::IsEnabled() { | |
| 643 return CommandLine::ForCurrentProcess()->HasSwitch( | |
| 644 switches::kEnableWebUIMenu); | |
| 645 } | |
| 646 | |
| 647 ChromeURLDataManager::DataSource* MenuUI::CreateDataSource() { | |
| 648 return CreateMenuUIHTMLSource(NULL, | |
| 649 chrome::kChromeUIMenu, | |
| 650 "Menu" /* class name */, | |
| 651 kNoExtraResource, | |
| 652 kNoExtraResource); | |
| 653 } | |
| 654 | |
| 655 } // namespace chromeos | |
| OLD | NEW |
|---|
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