Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtk2ui/app_indicator_icon.cc

Index: chrome/browser/ui/libgtk2ui/app_indicator_icon.cc
diff --git a/chrome/browser/ui/libgtk2ui/app_indicator_icon.cc b/chrome/browser/ui/libgtk2ui/app_indicator_icon.cc
deleted file mode 100644
index f0e9cec873a4a337bd1fe45dbcf3a996667d3f8d..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/libgtk2ui/app_indicator_icon.cc
+++ /dev/null
@@ -1,397 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/libgtk2ui/app_indicator_icon.h"
-
-#include <dlfcn.h>
-#include <gtk/gtk.h>
-
-#include "base/bind.h"
-#include "base/environment.h"
-#include "base/files/file_util.h"
-#include "base/md5.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "chrome/browser/ui/libgtk2ui/app_indicator_icon_menu.h"
-#include "content/public/browser/browser_thread.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "ui/base/models/menu_model.h"
-#include "ui/gfx/codec/png_codec.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/image/image_skia.h"
-
-namespace {
-
-typedef enum {
-  APP_INDICATOR_CATEGORY_APPLICATION_STATUS,
-  APP_INDICATOR_CATEGORY_COMMUNICATIONS,
-  APP_INDICATOR_CATEGORY_SYSTEM_SERVICES,
-  APP_INDICATOR_CATEGORY_HARDWARE,
-  APP_INDICATOR_CATEGORY_OTHER
-} AppIndicatorCategory;
-
-typedef enum {
-  APP_INDICATOR_STATUS_PASSIVE,
-  APP_INDICATOR_STATUS_ACTIVE,
-  APP_INDICATOR_STATUS_ATTENTION
-} AppIndicatorStatus;
-
-typedef AppIndicator* (*app_indicator_new_func)(const gchar* id,
-                                                const gchar* icon_name,
-                                                AppIndicatorCategory category);
-
-typedef AppIndicator* (*app_indicator_new_with_path_func)(
-    const gchar* id,
-    const gchar* icon_name,
-    AppIndicatorCategory category,
-    const gchar* icon_theme_path);
-
-typedef void (*app_indicator_set_status_func)(AppIndicator* self,
-                                              AppIndicatorStatus status);
-
-typedef void (*app_indicator_set_attention_icon_full_func)(
-    AppIndicator* self,
-    const gchar* icon_name,
-    const gchar* icon_desc);
-
-typedef void (*app_indicator_set_menu_func)(AppIndicator* self, GtkMenu* menu);
-
-typedef void (*app_indicator_set_icon_full_func)(AppIndicator* self,
-                                                 const gchar* icon_name,
-                                                 const gchar* icon_desc);
-
-typedef void (*app_indicator_set_icon_theme_path_func)(
-    AppIndicator* self,
-    const gchar* icon_theme_path);
-
-bool g_attempted_load = false;
-bool g_opened = false;
-
-// Retrieved functions from libappindicator.
-app_indicator_new_func app_indicator_new = NULL;
-app_indicator_new_with_path_func app_indicator_new_with_path = NULL;
-app_indicator_set_status_func app_indicator_set_status = NULL;
-app_indicator_set_attention_icon_full_func
-    app_indicator_set_attention_icon_full = NULL;
-app_indicator_set_menu_func app_indicator_set_menu = NULL;
-app_indicator_set_icon_full_func app_indicator_set_icon_full = NULL;
-app_indicator_set_icon_theme_path_func app_indicator_set_icon_theme_path = NULL;
-
-void EnsureMethodsLoaded() {
-  if (g_attempted_load)
-    return;
-
-  g_attempted_load = true;
-
-  // Only use libappindicator where it is needed to support dbus based status
-  // icons. In particular, libappindicator does not support a click action.
-  std::unique_ptr<base::Environment> env(base::Environment::Create());
-  base::nix::DesktopEnvironment environment =
-      base::nix::GetDesktopEnvironment(env.get());
-  if (environment != base::nix::DESKTOP_ENVIRONMENT_KDE4 &&
-      environment != base::nix::DESKTOP_ENVIRONMENT_KDE5 &&
-      environment != base::nix::DESKTOP_ENVIRONMENT_UNITY) {
-    return;
-  }
-
-  void* indicator_lib = nullptr;
-
-  // These include guards might be unnecessary, but let's keep them as a
-  // precaution since using gtk2 and gtk3 symbols in the same process is
-  // explicitly unsupported.
-#if GTK_MAJOR_VERSION == 2
-  if (!indicator_lib)
-    indicator_lib = dlopen("libappindicator.so", RTLD_LAZY);
-
-  if (!indicator_lib)
-    indicator_lib = dlopen("libappindicator.so.1", RTLD_LAZY);
-
-  if (!indicator_lib)
-    indicator_lib = dlopen("libappindicator.so.0", RTLD_LAZY);
-#endif
-
-#if GTK_MAJOR_VERSION == 3
-  if (!indicator_lib)
-    indicator_lib = dlopen("libappindicator3.so", RTLD_LAZY);
-
-  if (!indicator_lib)
-    indicator_lib = dlopen("libappindicator3.so.1", RTLD_LAZY);
-#endif
-
-  if (!indicator_lib)
-    return;
-
-  g_opened = true;
-
-  app_indicator_new = reinterpret_cast<app_indicator_new_func>(
-      dlsym(indicator_lib, "app_indicator_new"));
-
-  app_indicator_new_with_path =
-      reinterpret_cast<app_indicator_new_with_path_func>(
-          dlsym(indicator_lib, "app_indicator_new_with_path"));
-
-  app_indicator_set_status = reinterpret_cast<app_indicator_set_status_func>(
-      dlsym(indicator_lib, "app_indicator_set_status"));
-
-  app_indicator_set_attention_icon_full =
-      reinterpret_cast<app_indicator_set_attention_icon_full_func>(
-          dlsym(indicator_lib, "app_indicator_set_attention_icon_full"));
-
-  app_indicator_set_menu = reinterpret_cast<app_indicator_set_menu_func>(
-      dlsym(indicator_lib, "app_indicator_set_menu"));
-
-  app_indicator_set_icon_full =
-      reinterpret_cast<app_indicator_set_icon_full_func>(
-          dlsym(indicator_lib, "app_indicator_set_icon_full"));
-
-  app_indicator_set_icon_theme_path =
-      reinterpret_cast<app_indicator_set_icon_theme_path_func>(
-          dlsym(indicator_lib, "app_indicator_set_icon_theme_path"));
-}
-
-// Writes |bitmap| to a file at |path|. Returns true if successful.
-bool WriteFile(const base::FilePath& path, const SkBitmap& bitmap) {
-  std::vector<unsigned char> png_data;
-  if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &png_data))
-    return false;
-  int bytes_written = base::WriteFile(
-      path, reinterpret_cast<char*>(&png_data[0]), png_data.size());
-  return (bytes_written == static_cast<int>(png_data.size()));
-}
-
-void DeleteTempDirectory(const base::FilePath& dir_path) {
-  if (dir_path.empty())
-    return;
-  base::DeleteFile(dir_path, true);
-}
-
-}  // namespace
-
-namespace libgtk2ui {
-
-AppIndicatorIcon::AppIndicatorIcon(std::string id,
-                                   const gfx::ImageSkia& image,
-                                   const base::string16& tool_tip)
-    : id_(id),
-      icon_(NULL),
-      menu_model_(NULL),
-      icon_change_count_(0),
-      weak_factory_(this) {
-  std::unique_ptr<base::Environment> env(base::Environment::Create());
-  desktop_env_ = base::nix::GetDesktopEnvironment(env.get());
-
-  EnsureMethodsLoaded();
-  tool_tip_ = base::UTF16ToUTF8(tool_tip);
-  SetImage(image);
-}
-AppIndicatorIcon::~AppIndicatorIcon() {
-  if (icon_) {
-    app_indicator_set_status(icon_, APP_INDICATOR_STATUS_PASSIVE);
-    g_object_unref(icon_);
-    content::BrowserThread::GetBlockingPool()->PostTask(
-        FROM_HERE,
-        base::Bind(&DeleteTempDirectory, temp_dir_));
-  }
-}
-
-// static
-bool AppIndicatorIcon::CouldOpen() {
-  EnsureMethodsLoaded();
-  return g_opened;
-}
-
-void AppIndicatorIcon::SetImage(const gfx::ImageSkia& image) {
-  if (!g_opened)
-    return;
-
-  ++icon_change_count_;
-
-  // Copy the bitmap because it may be freed by the time it's accessed in
-  // another thread.
-  SkBitmap safe_bitmap = *image.bitmap();
-
-  scoped_refptr<base::TaskRunner> task_runner =
-      content::BrowserThread::GetBlockingPool()
-          ->GetTaskRunnerWithShutdownBehavior(
-                base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
-  if (desktop_env_ == base::nix::DESKTOP_ENVIRONMENT_KDE4 ||
-      desktop_env_ == base::nix::DESKTOP_ENVIRONMENT_KDE5) {
-    base::PostTaskAndReplyWithResult(
-        task_runner.get(), FROM_HERE,
-        base::Bind(AppIndicatorIcon::WriteKDE4TempImageOnWorkerThread,
-                   safe_bitmap, temp_dir_),
-        base::Bind(&AppIndicatorIcon::SetImageFromFile,
-                   weak_factory_.GetWeakPtr()));
-  } else {
-    base::PostTaskAndReplyWithResult(
-        task_runner.get(), FROM_HERE,
-        base::Bind(AppIndicatorIcon::WriteUnityTempImageOnWorkerThread,
-                   safe_bitmap, icon_change_count_, id_),
-        base::Bind(&AppIndicatorIcon::SetImageFromFile,
-                   weak_factory_.GetWeakPtr()));
-  }
-}
-
-void AppIndicatorIcon::SetToolTip(const base::string16& tool_tip) {
-  DCHECK(!tool_tip_.empty());
-  tool_tip_ = base::UTF16ToUTF8(tool_tip);
-  UpdateClickActionReplacementMenuItem();
-}
-
-void AppIndicatorIcon::UpdatePlatformContextMenu(ui::MenuModel* model) {
-  if (!g_opened)
-    return;
-
-  menu_model_ = model;
-
-  // The icon is created asynchronously so it might not exist when the menu is
-  // set.
-  if (icon_)
-    SetMenu();
-}
-
-void AppIndicatorIcon::RefreshPlatformContextMenu() {
-  menu_->Refresh();
-}
-
-// static
-AppIndicatorIcon::SetImageFromFileParams
-AppIndicatorIcon::WriteKDE4TempImageOnWorkerThread(
-    const SkBitmap& bitmap,
-    const base::FilePath& existing_temp_dir) {
-  base::FilePath temp_dir = existing_temp_dir;
-  if (temp_dir.empty() &&
-      !base::CreateNewTempDirectory(base::FilePath::StringType(), &temp_dir)) {
-    LOG(WARNING) << "Could not create temporary directory";
-    return SetImageFromFileParams();
-  }
-
-  base::FilePath icon_theme_path = temp_dir.AppendASCII("icons");
-
-  // On KDE4, an image located in a directory ending with
-  // "icons/hicolor/24x24/apps" can be used as the app indicator image because
-  // "/usr/share/icons/hicolor/24x24/apps" exists.
-  base::FilePath image_dir = icon_theme_path.AppendASCII("hicolor")
-                                 .AppendASCII("24x24")
-                                 .AppendASCII("apps");
-
-  if (!base::CreateDirectory(image_dir))
-    return SetImageFromFileParams();
-
-  // On KDE4, the name of the image file for each different looking bitmap must
-  // be unique. It must also be unique across runs of Chrome.
-  std::vector<unsigned char> bitmap_png_data;
-  if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &bitmap_png_data)) {
-    LOG(WARNING) << "Could not encode icon";
-    return SetImageFromFileParams();
-  }
-  base::MD5Digest digest;
-  base::MD5Sum(reinterpret_cast<char*>(&bitmap_png_data[0]),
-               bitmap_png_data.size(), &digest);
-  std::string icon_name = base::StringPrintf(
-      "chrome_app_indicator2_%s", base::MD5DigestToBase16(digest).c_str());
-
-  // If |bitmap| is not 24x24, KDE does some really ugly resizing. Pad |bitmap|
-  // with transparent pixels to make it 24x24.
-  const int kDesiredSize = 24;
-  SkBitmap scaled_bitmap;
-  scaled_bitmap.allocN32Pixels(kDesiredSize, kDesiredSize);
-  scaled_bitmap.eraseARGB(0, 0, 0, 0);
-  SkCanvas canvas(scaled_bitmap);
-  canvas.drawBitmap(bitmap, (kDesiredSize - bitmap.width()) / 2,
-                    (kDesiredSize - bitmap.height()) / 2);
-
-  base::FilePath image_path = image_dir.Append(icon_name + ".png");
-  if (!WriteFile(image_path, scaled_bitmap))
-    return SetImageFromFileParams();
-
-  SetImageFromFileParams params;
-  params.parent_temp_dir = temp_dir;
-  params.icon_theme_path = icon_theme_path.value();
-  params.icon_name = icon_name;
-  return params;
-}
-
-// static
-AppIndicatorIcon::SetImageFromFileParams
-AppIndicatorIcon::WriteUnityTempImageOnWorkerThread(const SkBitmap& bitmap,
-                                                    int icon_change_count,
-                                                    const std::string& id) {
-  // Create a new temporary directory for each image on Unity since using a
-  // single temporary directory seems to have issues when changing icons in
-  // quick succession.
-  base::FilePath temp_dir;
-  if (!base::CreateNewTempDirectory(base::FilePath::StringType(), &temp_dir)) {
-    LOG(WARNING) << "Could not create temporary directory";
-    return SetImageFromFileParams();
-  }
-
-  std::string icon_name =
-      base::StringPrintf("%s_%d", id.c_str(), icon_change_count);
-  base::FilePath image_path = temp_dir.Append(icon_name + ".png");
-  SetImageFromFileParams params;
-  if (WriteFile(image_path, bitmap)) {
-    params.parent_temp_dir = temp_dir;
-    params.icon_theme_path = temp_dir.value();
-    params.icon_name = icon_name;
-  }
-  return params;
-}
-
-void AppIndicatorIcon::SetImageFromFile(const SetImageFromFileParams& params) {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  if (params.icon_theme_path.empty())
-    return;
-
-  if (!icon_) {
-    icon_ =
-        app_indicator_new_with_path(id_.c_str(),
-                                    params.icon_name.c_str(),
-                                    APP_INDICATOR_CATEGORY_APPLICATION_STATUS,
-                                    params.icon_theme_path.c_str());
-    app_indicator_set_status(icon_, APP_INDICATOR_STATUS_ACTIVE);
-    SetMenu();
-  } else {
-    app_indicator_set_icon_theme_path(icon_, params.icon_theme_path.c_str());
-    app_indicator_set_icon_full(icon_, params.icon_name.c_str(), "icon");
-  }
-
-  if (temp_dir_ != params.parent_temp_dir) {
-    content::BrowserThread::GetBlockingPool()->PostTask(
-        FROM_HERE,
-        base::Bind(&DeleteTempDirectory, temp_dir_));
-    temp_dir_ = params.parent_temp_dir;
-  }
-}
-
-void AppIndicatorIcon::SetMenu() {
-  menu_.reset(new AppIndicatorIconMenu(menu_model_));
-  UpdateClickActionReplacementMenuItem();
-  app_indicator_set_menu(icon_, menu_->GetGtkMenu());
-}
-
-void AppIndicatorIcon::UpdateClickActionReplacementMenuItem() {
-  // The menu may not have been created yet.
-  if (!menu_.get())
-    return;
-
-  if (!delegate()->HasClickAction() && menu_model_)
-    return;
-
-  DCHECK(!tool_tip_.empty());
-  menu_->UpdateClickActionReplacementMenuItem(
-      tool_tip_.c_str(),
-      base::Bind(&AppIndicatorIcon::OnClickActionReplacementMenuItemActivated,
-                 base::Unretained(this)));
-}
-
-void AppIndicatorIcon::OnClickActionReplacementMenuItemActivated() {
-  if (delegate())
-    delegate()->OnClick();
-}
-
-}  // namespace libgtk2ui