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| 1 // Copyright 2013 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/libgtk2ui/app_indicator_icon.h" | |
| 6 | |
| 7 #include <dlfcn.h> | |
| 8 #include <gtk/gtk.h> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/environment.h" | |
| 12 #include "base/files/file_util.h" | |
| 13 #include "base/md5.h" | |
| 14 #include "base/memory/ref_counted_memory.h" | |
| 15 #include "base/strings/stringprintf.h" | |
| 16 #include "base/strings/utf_string_conversions.h" | |
| 17 #include "base/threading/sequenced_worker_pool.h" | |
| 18 #include "chrome/browser/ui/libgtk2ui/app_indicator_icon_menu.h" | |
| 19 #include "content/public/browser/browser_thread.h" | |
| 20 #include "third_party/skia/include/core/SkBitmap.h" | |
| 21 #include "third_party/skia/include/core/SkCanvas.h" | |
| 22 #include "ui/base/models/menu_model.h" | |
| 23 #include "ui/gfx/codec/png_codec.h" | |
| 24 #include "ui/gfx/image/image.h" | |
| 25 #include "ui/gfx/image/image_skia.h" | |
| 26 | |
| 27 namespace { | |
| 28 | |
| 29 typedef enum { | |
| 30 APP_INDICATOR_CATEGORY_APPLICATION_STATUS, | |
| 31 APP_INDICATOR_CATEGORY_COMMUNICATIONS, | |
| 32 APP_INDICATOR_CATEGORY_SYSTEM_SERVICES, | |
| 33 APP_INDICATOR_CATEGORY_HARDWARE, | |
| 34 APP_INDICATOR_CATEGORY_OTHER | |
| 35 } AppIndicatorCategory; | |
| 36 | |
| 37 typedef enum { | |
| 38 APP_INDICATOR_STATUS_PASSIVE, | |
| 39 APP_INDICATOR_STATUS_ACTIVE, | |
| 40 APP_INDICATOR_STATUS_ATTENTION | |
| 41 } AppIndicatorStatus; | |
| 42 | |
| 43 typedef AppIndicator* (*app_indicator_new_func)(const gchar* id, | |
| 44 const gchar* icon_name, | |
| 45 AppIndicatorCategory category); | |
| 46 | |
| 47 typedef AppIndicator* (*app_indicator_new_with_path_func)( | |
| 48 const gchar* id, | |
| 49 const gchar* icon_name, | |
| 50 AppIndicatorCategory category, | |
| 51 const gchar* icon_theme_path); | |
| 52 | |
| 53 typedef void (*app_indicator_set_status_func)(AppIndicator* self, | |
| 54 AppIndicatorStatus status); | |
| 55 | |
| 56 typedef void (*app_indicator_set_attention_icon_full_func)( | |
| 57 AppIndicator* self, | |
| 58 const gchar* icon_name, | |
| 59 const gchar* icon_desc); | |
| 60 | |
| 61 typedef void (*app_indicator_set_menu_func)(AppIndicator* self, GtkMenu* menu); | |
| 62 | |
| 63 typedef void (*app_indicator_set_icon_full_func)(AppIndicator* self, | |
| 64 const gchar* icon_name, | |
| 65 const gchar* icon_desc); | |
| 66 | |
| 67 typedef void (*app_indicator_set_icon_theme_path_func)( | |
| 68 AppIndicator* self, | |
| 69 const gchar* icon_theme_path); | |
| 70 | |
| 71 bool g_attempted_load = false; | |
| 72 bool g_opened = false; | |
| 73 | |
| 74 // Retrieved functions from libappindicator. | |
| 75 app_indicator_new_func app_indicator_new = NULL; | |
| 76 app_indicator_new_with_path_func app_indicator_new_with_path = NULL; | |
| 77 app_indicator_set_status_func app_indicator_set_status = NULL; | |
| 78 app_indicator_set_attention_icon_full_func | |
| 79 app_indicator_set_attention_icon_full = NULL; | |
| 80 app_indicator_set_menu_func app_indicator_set_menu = NULL; | |
| 81 app_indicator_set_icon_full_func app_indicator_set_icon_full = NULL; | |
| 82 app_indicator_set_icon_theme_path_func app_indicator_set_icon_theme_path = NULL; | |
| 83 | |
| 84 void EnsureMethodsLoaded() { | |
| 85 if (g_attempted_load) | |
| 86 return; | |
| 87 | |
| 88 g_attempted_load = true; | |
| 89 | |
| 90 // Only use libappindicator where it is needed to support dbus based status | |
| 91 // icons. In particular, libappindicator does not support a click action. | |
| 92 std::unique_ptr<base::Environment> env(base::Environment::Create()); | |
| 93 base::nix::DesktopEnvironment environment = | |
| 94 base::nix::GetDesktopEnvironment(env.get()); | |
| 95 if (environment != base::nix::DESKTOP_ENVIRONMENT_KDE4 && | |
| 96 environment != base::nix::DESKTOP_ENVIRONMENT_KDE5 && | |
| 97 environment != base::nix::DESKTOP_ENVIRONMENT_UNITY) { | |
| 98 return; | |
| 99 } | |
| 100 | |
| 101 void* indicator_lib = nullptr; | |
| 102 | |
| 103 // These include guards might be unnecessary, but let's keep them as a | |
| 104 // precaution since using gtk2 and gtk3 symbols in the same process is | |
| 105 // explicitly unsupported. | |
| 106 #if GTK_MAJOR_VERSION == 2 | |
| 107 if (!indicator_lib) | |
| 108 indicator_lib = dlopen("libappindicator.so", RTLD_LAZY); | |
| 109 | |
| 110 if (!indicator_lib) | |
| 111 indicator_lib = dlopen("libappindicator.so.1", RTLD_LAZY); | |
| 112 | |
| 113 if (!indicator_lib) | |
| 114 indicator_lib = dlopen("libappindicator.so.0", RTLD_LAZY); | |
| 115 #endif | |
| 116 | |
| 117 #if GTK_MAJOR_VERSION == 3 | |
| 118 if (!indicator_lib) | |
| 119 indicator_lib = dlopen("libappindicator3.so", RTLD_LAZY); | |
| 120 | |
| 121 if (!indicator_lib) | |
| 122 indicator_lib = dlopen("libappindicator3.so.1", RTLD_LAZY); | |
| 123 #endif | |
| 124 | |
| 125 if (!indicator_lib) | |
| 126 return; | |
| 127 | |
| 128 g_opened = true; | |
| 129 | |
| 130 app_indicator_new = reinterpret_cast<app_indicator_new_func>( | |
| 131 dlsym(indicator_lib, "app_indicator_new")); | |
| 132 | |
| 133 app_indicator_new_with_path = | |
| 134 reinterpret_cast<app_indicator_new_with_path_func>( | |
| 135 dlsym(indicator_lib, "app_indicator_new_with_path")); | |
| 136 | |
| 137 app_indicator_set_status = reinterpret_cast<app_indicator_set_status_func>( | |
| 138 dlsym(indicator_lib, "app_indicator_set_status")); | |
| 139 | |
| 140 app_indicator_set_attention_icon_full = | |
| 141 reinterpret_cast<app_indicator_set_attention_icon_full_func>( | |
| 142 dlsym(indicator_lib, "app_indicator_set_attention_icon_full")); | |
| 143 | |
| 144 app_indicator_set_menu = reinterpret_cast<app_indicator_set_menu_func>( | |
| 145 dlsym(indicator_lib, "app_indicator_set_menu")); | |
| 146 | |
| 147 app_indicator_set_icon_full = | |
| 148 reinterpret_cast<app_indicator_set_icon_full_func>( | |
| 149 dlsym(indicator_lib, "app_indicator_set_icon_full")); | |
| 150 | |
| 151 app_indicator_set_icon_theme_path = | |
| 152 reinterpret_cast<app_indicator_set_icon_theme_path_func>( | |
| 153 dlsym(indicator_lib, "app_indicator_set_icon_theme_path")); | |
| 154 } | |
| 155 | |
| 156 // Writes |bitmap| to a file at |path|. Returns true if successful. | |
| 157 bool WriteFile(const base::FilePath& path, const SkBitmap& bitmap) { | |
| 158 std::vector<unsigned char> png_data; | |
| 159 if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &png_data)) | |
| 160 return false; | |
| 161 int bytes_written = base::WriteFile( | |
| 162 path, reinterpret_cast<char*>(&png_data[0]), png_data.size()); | |
| 163 return (bytes_written == static_cast<int>(png_data.size())); | |
| 164 } | |
| 165 | |
| 166 void DeleteTempDirectory(const base::FilePath& dir_path) { | |
| 167 if (dir_path.empty()) | |
| 168 return; | |
| 169 base::DeleteFile(dir_path, true); | |
| 170 } | |
| 171 | |
| 172 } // namespace | |
| 173 | |
| 174 namespace libgtk2ui { | |
| 175 | |
| 176 AppIndicatorIcon::AppIndicatorIcon(std::string id, | |
| 177 const gfx::ImageSkia& image, | |
| 178 const base::string16& tool_tip) | |
| 179 : id_(id), | |
| 180 icon_(NULL), | |
| 181 menu_model_(NULL), | |
| 182 icon_change_count_(0), | |
| 183 weak_factory_(this) { | |
| 184 std::unique_ptr<base::Environment> env(base::Environment::Create()); | |
| 185 desktop_env_ = base::nix::GetDesktopEnvironment(env.get()); | |
| 186 | |
| 187 EnsureMethodsLoaded(); | |
| 188 tool_tip_ = base::UTF16ToUTF8(tool_tip); | |
| 189 SetImage(image); | |
| 190 } | |
| 191 AppIndicatorIcon::~AppIndicatorIcon() { | |
| 192 if (icon_) { | |
| 193 app_indicator_set_status(icon_, APP_INDICATOR_STATUS_PASSIVE); | |
| 194 g_object_unref(icon_); | |
| 195 content::BrowserThread::GetBlockingPool()->PostTask( | |
| 196 FROM_HERE, | |
| 197 base::Bind(&DeleteTempDirectory, temp_dir_)); | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 // static | |
| 202 bool AppIndicatorIcon::CouldOpen() { | |
| 203 EnsureMethodsLoaded(); | |
| 204 return g_opened; | |
| 205 } | |
| 206 | |
| 207 void AppIndicatorIcon::SetImage(const gfx::ImageSkia& image) { | |
| 208 if (!g_opened) | |
| 209 return; | |
| 210 | |
| 211 ++icon_change_count_; | |
| 212 | |
| 213 // Copy the bitmap because it may be freed by the time it's accessed in | |
| 214 // another thread. | |
| 215 SkBitmap safe_bitmap = *image.bitmap(); | |
| 216 | |
| 217 scoped_refptr<base::TaskRunner> task_runner = | |
| 218 content::BrowserThread::GetBlockingPool() | |
| 219 ->GetTaskRunnerWithShutdownBehavior( | |
| 220 base::SequencedWorkerPool::SKIP_ON_SHUTDOWN); | |
| 221 if (desktop_env_ == base::nix::DESKTOP_ENVIRONMENT_KDE4 || | |
| 222 desktop_env_ == base::nix::DESKTOP_ENVIRONMENT_KDE5) { | |
| 223 base::PostTaskAndReplyWithResult( | |
| 224 task_runner.get(), FROM_HERE, | |
| 225 base::Bind(AppIndicatorIcon::WriteKDE4TempImageOnWorkerThread, | |
| 226 safe_bitmap, temp_dir_), | |
| 227 base::Bind(&AppIndicatorIcon::SetImageFromFile, | |
| 228 weak_factory_.GetWeakPtr())); | |
| 229 } else { | |
| 230 base::PostTaskAndReplyWithResult( | |
| 231 task_runner.get(), FROM_HERE, | |
| 232 base::Bind(AppIndicatorIcon::WriteUnityTempImageOnWorkerThread, | |
| 233 safe_bitmap, icon_change_count_, id_), | |
| 234 base::Bind(&AppIndicatorIcon::SetImageFromFile, | |
| 235 weak_factory_.GetWeakPtr())); | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 void AppIndicatorIcon::SetToolTip(const base::string16& tool_tip) { | |
| 240 DCHECK(!tool_tip_.empty()); | |
| 241 tool_tip_ = base::UTF16ToUTF8(tool_tip); | |
| 242 UpdateClickActionReplacementMenuItem(); | |
| 243 } | |
| 244 | |
| 245 void AppIndicatorIcon::UpdatePlatformContextMenu(ui::MenuModel* model) { | |
| 246 if (!g_opened) | |
| 247 return; | |
| 248 | |
| 249 menu_model_ = model; | |
| 250 | |
| 251 // The icon is created asynchronously so it might not exist when the menu is | |
| 252 // set. | |
| 253 if (icon_) | |
| 254 SetMenu(); | |
| 255 } | |
| 256 | |
| 257 void AppIndicatorIcon::RefreshPlatformContextMenu() { | |
| 258 menu_->Refresh(); | |
| 259 } | |
| 260 | |
| 261 // static | |
| 262 AppIndicatorIcon::SetImageFromFileParams | |
| 263 AppIndicatorIcon::WriteKDE4TempImageOnWorkerThread( | |
| 264 const SkBitmap& bitmap, | |
| 265 const base::FilePath& existing_temp_dir) { | |
| 266 base::FilePath temp_dir = existing_temp_dir; | |
| 267 if (temp_dir.empty() && | |
| 268 !base::CreateNewTempDirectory(base::FilePath::StringType(), &temp_dir)) { | |
| 269 LOG(WARNING) << "Could not create temporary directory"; | |
| 270 return SetImageFromFileParams(); | |
| 271 } | |
| 272 | |
| 273 base::FilePath icon_theme_path = temp_dir.AppendASCII("icons"); | |
| 274 | |
| 275 // On KDE4, an image located in a directory ending with | |
| 276 // "icons/hicolor/24x24/apps" can be used as the app indicator image because | |
| 277 // "/usr/share/icons/hicolor/24x24/apps" exists. | |
| 278 base::FilePath image_dir = icon_theme_path.AppendASCII("hicolor") | |
| 279 .AppendASCII("24x24") | |
| 280 .AppendASCII("apps"); | |
| 281 | |
| 282 if (!base::CreateDirectory(image_dir)) | |
| 283 return SetImageFromFileParams(); | |
| 284 | |
| 285 // On KDE4, the name of the image file for each different looking bitmap must | |
| 286 // be unique. It must also be unique across runs of Chrome. | |
| 287 std::vector<unsigned char> bitmap_png_data; | |
| 288 if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &bitmap_png_data)) { | |
| 289 LOG(WARNING) << "Could not encode icon"; | |
| 290 return SetImageFromFileParams(); | |
| 291 } | |
| 292 base::MD5Digest digest; | |
| 293 base::MD5Sum(reinterpret_cast<char*>(&bitmap_png_data[0]), | |
| 294 bitmap_png_data.size(), &digest); | |
| 295 std::string icon_name = base::StringPrintf( | |
| 296 "chrome_app_indicator2_%s", base::MD5DigestToBase16(digest).c_str()); | |
| 297 | |
| 298 // If |bitmap| is not 24x24, KDE does some really ugly resizing. Pad |bitmap| | |
| 299 // with transparent pixels to make it 24x24. | |
| 300 const int kDesiredSize = 24; | |
| 301 SkBitmap scaled_bitmap; | |
| 302 scaled_bitmap.allocN32Pixels(kDesiredSize, kDesiredSize); | |
| 303 scaled_bitmap.eraseARGB(0, 0, 0, 0); | |
| 304 SkCanvas canvas(scaled_bitmap); | |
| 305 canvas.drawBitmap(bitmap, (kDesiredSize - bitmap.width()) / 2, | |
| 306 (kDesiredSize - bitmap.height()) / 2); | |
| 307 | |
| 308 base::FilePath image_path = image_dir.Append(icon_name + ".png"); | |
| 309 if (!WriteFile(image_path, scaled_bitmap)) | |
| 310 return SetImageFromFileParams(); | |
| 311 | |
| 312 SetImageFromFileParams params; | |
| 313 params.parent_temp_dir = temp_dir; | |
| 314 params.icon_theme_path = icon_theme_path.value(); | |
| 315 params.icon_name = icon_name; | |
| 316 return params; | |
| 317 } | |
| 318 | |
| 319 // static | |
| 320 AppIndicatorIcon::SetImageFromFileParams | |
| 321 AppIndicatorIcon::WriteUnityTempImageOnWorkerThread(const SkBitmap& bitmap, | |
| 322 int icon_change_count, | |
| 323 const std::string& id) { | |
| 324 // Create a new temporary directory for each image on Unity since using a | |
| 325 // single temporary directory seems to have issues when changing icons in | |
| 326 // quick succession. | |
| 327 base::FilePath temp_dir; | |
| 328 if (!base::CreateNewTempDirectory(base::FilePath::StringType(), &temp_dir)) { | |
| 329 LOG(WARNING) << "Could not create temporary directory"; | |
| 330 return SetImageFromFileParams(); | |
| 331 } | |
| 332 | |
| 333 std::string icon_name = | |
| 334 base::StringPrintf("%s_%d", id.c_str(), icon_change_count); | |
| 335 base::FilePath image_path = temp_dir.Append(icon_name + ".png"); | |
| 336 SetImageFromFileParams params; | |
| 337 if (WriteFile(image_path, bitmap)) { | |
| 338 params.parent_temp_dir = temp_dir; | |
| 339 params.icon_theme_path = temp_dir.value(); | |
| 340 params.icon_name = icon_name; | |
| 341 } | |
| 342 return params; | |
| 343 } | |
| 344 | |
| 345 void AppIndicatorIcon::SetImageFromFile(const SetImageFromFileParams& params) { | |
| 346 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); | |
| 347 if (params.icon_theme_path.empty()) | |
| 348 return; | |
| 349 | |
| 350 if (!icon_) { | |
| 351 icon_ = | |
| 352 app_indicator_new_with_path(id_.c_str(), | |
| 353 params.icon_name.c_str(), | |
| 354 APP_INDICATOR_CATEGORY_APPLICATION_STATUS, | |
| 355 params.icon_theme_path.c_str()); | |
| 356 app_indicator_set_status(icon_, APP_INDICATOR_STATUS_ACTIVE); | |
| 357 SetMenu(); | |
| 358 } else { | |
| 359 app_indicator_set_icon_theme_path(icon_, params.icon_theme_path.c_str()); | |
| 360 app_indicator_set_icon_full(icon_, params.icon_name.c_str(), "icon"); | |
| 361 } | |
| 362 | |
| 363 if (temp_dir_ != params.parent_temp_dir) { | |
| 364 content::BrowserThread::GetBlockingPool()->PostTask( | |
| 365 FROM_HERE, | |
| 366 base::Bind(&DeleteTempDirectory, temp_dir_)); | |
| 367 temp_dir_ = params.parent_temp_dir; | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 void AppIndicatorIcon::SetMenu() { | |
| 372 menu_.reset(new AppIndicatorIconMenu(menu_model_)); | |
| 373 UpdateClickActionReplacementMenuItem(); | |
| 374 app_indicator_set_menu(icon_, menu_->GetGtkMenu()); | |
| 375 } | |
| 376 | |
| 377 void AppIndicatorIcon::UpdateClickActionReplacementMenuItem() { | |
| 378 // The menu may not have been created yet. | |
| 379 if (!menu_.get()) | |
| 380 return; | |
| 381 | |
| 382 if (!delegate()->HasClickAction() && menu_model_) | |
| 383 return; | |
| 384 | |
| 385 DCHECK(!tool_tip_.empty()); | |
| 386 menu_->UpdateClickActionReplacementMenuItem( | |
| 387 tool_tip_.c_str(), | |
| 388 base::Bind(&AppIndicatorIcon::OnClickActionReplacementMenuItemActivated, | |
| 389 base::Unretained(this))); | |
| 390 } | |
| 391 | |
| 392 void AppIndicatorIcon::OnClickActionReplacementMenuItemActivated() { | |
| 393 if (delegate()) | |
| 394 delegate()->OnClick(); | |
| 395 } | |
| 396 | |
| 397 } // namespace libgtk2ui | |
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Chromium Code Reviews
Issue 2449243002:
Gtk3 ui: Add libgtk3ui as a separate build component (Closed)
