chrome/browser/ui/app_list/extension_app_item.cc

   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/ui/app_list/extension_app_item.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "chrome/browser/extensions/extension_service.h"
   9 #include "chrome/browser/extensions/extension_util.h"
  10 #include "chrome/browser/extensions/launch_util.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/ui/app_list/app_context_menu.h"
  13 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
  14 #include "chrome/browser/ui/app_list/app_list_service.h"
  15 #include "chrome/browser/ui/extensions/extension_enable_flow.h"
  16 #include "chrome/browser/ui/host_desktop.h"
  17 #include "chrome/common/extensions/extension_constants.h"
  18 #include "chrome/common/extensions/extension_metrics.h"
  19 #include "content/public/browser/user_metrics.h"
  20 #include "extensions/browser/app_sorting.h"
  21 #include "extensions/browser/extension_prefs.h"
  22 #include "extensions/browser/extension_system.h"
  23 #include "extensions/common/extension.h"
  24 #include "extensions/common/extension_icon_set.h"
  25 #include "extensions/common/manifest_handlers/icons_handler.h"
  26 #include "extensions/common/manifest_url_handlers.h"
  27 #include "grit/theme_resources.h"
  28 #include "sync/api/string_ordinal.h"
  29 #include "ui/base/resource/resource_bundle.h"
  30 #include "ui/gfx/canvas.h"
  31 #include "ui/gfx/color_utils.h"
  32 #include "ui/gfx/geometry/rect.h"
  33 #include "ui/gfx/image/canvas_image_source.h"
  34 #include "ui/gfx/image/image_skia_operations.h"
  35
  36 using extensions::Extension;
  37
  38 namespace {
  39
  40 // Overlays a shortcut icon over the bottom left corner of a given image.
  41 class ShortcutOverlayImageSource : public gfx::CanvasImageSource {
  42  public:
  43   explicit ShortcutOverlayImageSource(const gfx::ImageSkia& icon)
  44       : gfx::CanvasImageSource(icon.size(), false),
  45         icon_(icon) {
  46   }
  47   ~ShortcutOverlayImageSource() override {}
  48
  49  private:
  50   // gfx::CanvasImageSource overrides:
  51   void Draw(gfx::Canvas* canvas) override {
  52     canvas->DrawImageInt(icon_, 0, 0);
  53
  54     // Draw the overlay in the bottom left corner of the icon.
  55     const gfx::ImageSkia& overlay = *ui::ResourceBundle::GetSharedInstance().
  56         GetImageSkiaNamed(IDR_APP_LIST_TAB_OVERLAY);
  57     canvas->DrawImageInt(overlay, 0, icon_.height() - overlay.height());
  58   }
  59
  60   gfx::ImageSkia icon_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(ShortcutOverlayImageSource);
  63 };
  64
  65 // Rounds the corners of a given image.
  66 class RoundedCornersImageSource : public gfx::CanvasImageSource {
  67  public:
  68   explicit RoundedCornersImageSource(const gfx::ImageSkia& icon)
  69       : gfx::CanvasImageSource(icon.size(), false),
  70         icon_(icon) {
  71   }
  72   ~RoundedCornersImageSource() override {}
  73
  74  private:
  75   // gfx::CanvasImageSource overrides:
  76   void Draw(gfx::Canvas* canvas) override {
  77     // The radius used to round the app icon.
  78     const size_t kRoundingRadius = 2;
  79
  80     canvas->DrawImageInt(icon_, 0, 0);
  81
  82     scoped_ptr<gfx::Canvas> masking_canvas(
  83         new gfx::Canvas(gfx::Size(icon_.width(), icon_.height()), 1.0f, false));
  84     DCHECK(masking_canvas);
  85
  86     SkPaint opaque_paint;
  87     opaque_paint.setColor(SK_ColorWHITE);
  88     opaque_paint.setFlags(SkPaint::kAntiAlias_Flag);
  89     masking_canvas->DrawRoundRect(
  90         gfx::Rect(icon_.width(), icon_.height()),
  91         kRoundingRadius, opaque_paint);
  92
  93     SkPaint masking_paint;
  94     masking_paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
  95     canvas->DrawImageInt(
  96         gfx::ImageSkia(masking_canvas->ExtractImageRep()), 0, 0, masking_paint);
  97   }
  98
  99   gfx::ImageSkia icon_;
 100
 101   DISALLOW_COPY_AND_ASSIGN(RoundedCornersImageSource);
 102 };
 103
 104 extensions::AppSorting* GetAppSorting(Profile* profile) {
 105   return extensions::ExtensionPrefs::Get(profile)->app_sorting();
 106 }
 107
 108 gfx::ImageSkia CreateDisabledIcon(const gfx::ImageSkia& icon) {
 109   const color_utils::HSL shift = {-1, 0, 0.6};
 110   return gfx::ImageSkiaOperations::CreateHSLShiftedImage(icon, shift);
 111 }
 112
 113 }  // namespace
 114
 115 ExtensionAppItem::ExtensionAppItem(
 116     Profile* profile,
 117     const app_list::AppListSyncableService::SyncItem* sync_item,
 118     const std::string& extension_id,
 119     const std::string& extension_name,
 120     const gfx::ImageSkia& installing_icon,
 121     bool is_platform_app)
 122     : app_list::AppListItem(extension_id),
 123       profile_(profile),
 124       extension_id_(extension_id),
 125       extension_enable_flow_controller_(NULL),
 126       extension_name_(extension_name),
 127       installing_icon_(CreateDisabledIcon(installing_icon)),
 128       is_platform_app_(is_platform_app),
 129       has_overlay_(false) {
 130   Reload();
 131   if (sync_item && sync_item->item_ordinal.IsValid()) {
 132     // An existing synced position exists, use that.
 133     set_position(sync_item->item_ordinal);
 134     // Only set the name from the sync item if it is empty.
 135     if (name().empty())
 136       SetName(sync_item->item_name);
 137     return;
 138   }
 139   GetAppSorting(profile_)->EnsureValidOrdinals(extension_id_,
 140                                                syncer::StringOrdinal());
 141   UpdatePositionFromExtensionOrdering();
 142 }
 143
 144 ExtensionAppItem::~ExtensionAppItem() {
 145 }
 146
 147 bool ExtensionAppItem::NeedsOverlay() const {
 148 #if defined(OS_CHROMEOS)
 149   // The overlay is disabled completely in ChromeOS.
 150   return false;
 151 #endif
 152
 153   extensions::LaunchType launch_type =
 154       GetExtension()
 155           ? extensions::GetLaunchType(extensions::ExtensionPrefs::Get(profile_),
 156                                       GetExtension())
 157           : extensions::LAUNCH_TYPE_WINDOW;
 158
 159   // The overlay icon is disabled for hosted apps in windowed mode with
 160   // bookmark apps enabled.
 161   return !is_platform_app_ && extension_id_ != extension_misc::kChromeAppId &&
 162          (!extensions::util::IsNewBookmarkAppsEnabled() ||
 163           launch_type != extensions::LAUNCH_TYPE_WINDOW);
 164 }
 165
 166 void ExtensionAppItem::Reload() {
 167   const Extension* extension = GetExtension();
 168   bool is_installing = !extension;
 169   SetIsInstalling(is_installing);
 170   if (is_installing) {
 171     SetName(extension_name_);
 172     UpdateIcon();
 173     return;
 174   }
 175   SetNameAndShortName(extension->name(), extension->short_name());
 176   LoadImage(extension);
 177 }
 178
 179 void ExtensionAppItem::UpdateIcon() {
 180   gfx::ImageSkia icon = installing_icon_;
 181
 182   // Use the app icon if the app exists. Turn the image greyscale if the app is
 183   // not launchable.
 184   if (GetExtension() && icon_) {
 185     icon = icon_->image_skia();
 186     const bool enabled = extensions::util::IsAppLaunchable(extension_id_,
 187                                                            profile_);
 188     if (!enabled)
 189       icon = CreateDisabledIcon(icon);
 190
 191     if (GetExtension()->from_bookmark())
 192       icon = gfx::ImageSkia(new RoundedCornersImageSource(icon), icon.size());
 193   }
 194   // Paint the shortcut overlay if necessary.
 195   has_overlay_ = NeedsOverlay();
 196   if (has_overlay_)
 197     icon = gfx::ImageSkia(new ShortcutOverlayImageSource(icon), icon.size());
 198
 199   SetIcon(icon, true);
 200 }
 201
 202 void ExtensionAppItem::Move(const ExtensionAppItem* prev,
 203                             const ExtensionAppItem* next) {
 204   if (!prev && !next)
 205     return;  // No reordering necessary
 206
 207   extensions::ExtensionPrefs* prefs = extensions::ExtensionPrefs::Get(profile_);
 208   extensions::AppSorting* sorting = GetAppSorting(profile_);
 209
 210   syncer::StringOrdinal page;
 211   std::string prev_id, next_id;
 212   if (!prev) {
 213     next_id = next->extension_id();
 214     page = sorting->GetPageOrdinal(next_id);
 215   } else if (!next) {
 216     prev_id = prev->extension_id();
 217     page = sorting->GetPageOrdinal(prev_id);
 218   } else {
 219     prev_id = prev->extension_id();
 220     page = sorting->GetPageOrdinal(prev_id);
 221     // Only set |next_id| if on the same page, otherwise just insert after prev.
 222     if (page.Equals(sorting->GetPageOrdinal(next->extension_id())))
 223       next_id = next->extension_id();
 224   }
 225   prefs->SetAppDraggedByUser(extension_id_);
 226   sorting->SetPageOrdinal(extension_id_, page);
 227   sorting->OnExtensionMoved(extension_id_, prev_id, next_id);
 228   UpdatePositionFromExtensionOrdering();
 229 }
 230
 231 const Extension* ExtensionAppItem::GetExtension() const {
 232   const ExtensionService* service =
 233       extensions::ExtensionSystem::Get(profile_)->extension_service();
 234   const Extension* extension = service->GetInstalledExtension(extension_id_);
 235   return extension;
 236 }
 237
 238 void ExtensionAppItem::LoadImage(const Extension* extension) {
 239   icon_.reset(new extensions::IconImage(
 240       profile_,
 241       extension,
 242       extensions::IconsInfo::GetIcons(extension),
 243       extension_misc::EXTENSION_ICON_MEDIUM,
 244       extensions::util::GetDefaultAppIcon(),
 245       this));
 246   UpdateIcon();
 247 }
 248
 249 bool ExtensionAppItem::RunExtensionEnableFlow() {
 250   if (extensions::util::IsAppLaunchableWithoutEnabling(extension_id_, profile_))
 251     return false;
 252
 253   if (!extension_enable_flow_) {
 254     extension_enable_flow_controller_ = GetController();
 255     extension_enable_flow_controller_->OnShowChildDialog();
 256
 257     extension_enable_flow_.reset(new ExtensionEnableFlow(
 258         profile_, extension_id_, this));
 259     extension_enable_flow_->StartForNativeWindow(
 260         extension_enable_flow_controller_->GetAppListWindow());
 261   }
 262   return true;
 263 }
 264
 265 void ExtensionAppItem::Launch(int event_flags) {
 266   // |extension| could be NULL when it is being unloaded for updating.
 267   const Extension* extension = GetExtension();
 268   if (!extension)
 269     return;
 270
 271   // Don't auto-enable apps that cannot be launched.
 272   if (!extensions::util::IsAppLaunchable(extension_id_, profile_))
 273     return;
 274
 275   if (RunExtensionEnableFlow())
 276     return;
 277
 278   GetController()->LaunchApp(profile_,
 279                              extension,
 280                              AppListControllerDelegate::LAUNCH_FROM_APP_LIST,
 281                              event_flags);
 282 }
 283
 284 void ExtensionAppItem::OnExtensionIconImageChanged(
 285     extensions::IconImage* image) {
 286   DCHECK(icon_.get() == image);
 287   UpdateIcon();
 288 }
 289
 290 void ExtensionAppItem::ExtensionEnableFlowFinished() {
 291   extension_enable_flow_.reset();
 292   extension_enable_flow_controller_->OnCloseChildDialog();
 293   extension_enable_flow_controller_ = NULL;
 294
 295   // Automatically launch app after enabling.
 296   Launch(ui::EF_NONE);
 297 }
 298
 299 void ExtensionAppItem::ExtensionEnableFlowAborted(bool user_initiated) {
 300   extension_enable_flow_.reset();
 301   extension_enable_flow_controller_->OnCloseChildDialog();
 302   extension_enable_flow_controller_ = NULL;
 303 }
 304
 305 void ExtensionAppItem::Activate(int event_flags) {
 306   // |extension| could be NULL when it is being unloaded for updating.
 307   const Extension* extension = GetExtension();
 308   if (!extension)
 309     return;
 310
 311   // Don't auto-enable apps that cannot be launched.
 312   if (!extensions::util::IsAppLaunchable(extension_id_, profile_))
 313     return;
 314
 315   if (RunExtensionEnableFlow())
 316     return;
 317
 318   content::RecordAction(base::UserMetricsAction("AppList_ClickOnApp"));
 319   extensions::RecordAppListMainLaunch(extension);
 320   GetController()->ActivateApp(profile_,
 321                                extension,
 322                                AppListControllerDelegate::LAUNCH_FROM_APP_LIST,
 323                                event_flags);
 324 }
 325
 326 ui::MenuModel* ExtensionAppItem::GetContextMenuModel() {
 327   context_menu_.reset(new app_list::AppContextMenu(
 328       this, profile_, extension_id_, GetController()));
 329   context_menu_->set_is_platform_app(is_platform_app_);
 330   if (IsInFolder())
 331     context_menu_->set_is_in_folder(true);
 332   return context_menu_->GetMenuModel();
 333 }
 334
 335 void ExtensionAppItem::OnExtensionPreferenceChanged() {
 336   if (has_overlay_ != NeedsOverlay())
 337     UpdateIcon();
 338 }
 339
 340 // static
 341 const char ExtensionAppItem::kItemType[] = "ExtensionAppItem";
 342
 343 const char* ExtensionAppItem::GetItemType() const {
 344   return ExtensionAppItem::kItemType;
 345 }
 346
 347 void ExtensionAppItem::ExecuteLaunchCommand(int event_flags) {
 348   Launch(event_flags);
 349 }
 350
 351 void ExtensionAppItem::UpdatePositionFromExtensionOrdering() {
 352   const syncer::StringOrdinal& page =
 353       GetAppSorting(profile_)->GetPageOrdinal(extension_id_);
 354   const syncer::StringOrdinal& launch =
 355      GetAppSorting(profile_)->GetAppLaunchOrdinal(extension_id_);
 356   set_position(syncer::StringOrdinal(
 357       page.ToInternalValue() + launch.ToInternalValue()));
 358 }
 359
 360 AppListControllerDelegate* ExtensionAppItem::GetController() {
 361   return AppListService::Get(chrome::GetActiveDesktop())->
 362       GetControllerDelegate();
 363 }