Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/gconf_titlebar_listener.cc

-// Copyright (c) 2011 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/gtk/gconf_titlebar_listener.h"
-
-#include <gtk/gtk.h>
-
-#include "base/environment.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/singleton.h"
-#include "base/nix/xdg_util.h"
-#include "chrome/browser/ui/gtk/browser_titlebar.h"
-#include "ui/base/x/x11_util.h"
-
-namespace {
-
-// The GConf key we read for the button placement string. Even through the key
-// has "metacity" in it, it's shared between metacity and compiz.
-const char* kButtonLayoutKey = "/apps/metacity/general/button_layout";
-
-// GConf requires us to subscribe to a parent directory before we can subscribe
-// to changes in an individual key in that directory.
-const char* kMetacityGeneral = "/apps/metacity/general";
-
-}  // namespace
-
-// Public interface:
-
-// static
-GConfTitlebarListener* GConfTitlebarListener::GetInstance() {
-  return Singleton<GConfTitlebarListener>::get();
-}
-
-void GConfTitlebarListener::SetTitlebarButtons(BrowserTitlebar* titlebar) {
-  if (client_) {
-    titlebar->BuildButtons(current_value_);
-    titlebars_.insert(titlebar);
-  } else {
-    titlebar->BuildButtons(BrowserTitlebar::kDefaultButtonString);
-  }
-}
-
-void GConfTitlebarListener::RemoveObserver(BrowserTitlebar* titlebar) {
-  titlebars_.erase(titlebar);
-}
-
-// Protected:
-
-GConfTitlebarListener::~GConfTitlebarListener() {}
-
-// Private:
-
-GConfTitlebarListener::GConfTitlebarListener() : client_(NULL) {
-  scoped_ptr<base::Environment> env(base::Environment::Create());
-  base::nix::DesktopEnvironment de =
-      base::nix::GetDesktopEnvironment(env.get());
-  if (de == base::nix::DESKTOP_ENVIRONMENT_GNOME ||
-      de == base::nix::DESKTOP_ENVIRONMENT_UNITY ||
-      ui::GuessWindowManager() == ui::WM_METACITY) {
-    client_ = gconf_client_get_default();
-    // If we fail to get a context, that's OK, since we'll just fallback on
-    // not receiving gconf keys.
-    if (client_) {
-      // Get the initial value of the key.
-      GError* error = NULL;
-      GConfValue* gconf_value = gconf_client_get(client_, kButtonLayoutKey,
-                                                 &error);
-      if (HandleGError(error, kButtonLayoutKey))
-        return;
-      ParseAndStoreValue(gconf_value);
-      if (gconf_value)
-        gconf_value_free(gconf_value);
-
-      // Register that we're interested in the values of this directory.
-      gconf_client_add_dir(client_, kMetacityGeneral,
-                           GCONF_CLIENT_PRELOAD_ONELEVEL, &error);
-      if (HandleGError(error, kMetacityGeneral))
-        return;
-
-      // Register to get notifies about changes to this key.
-      gconf_client_notify_add(
-          client_, kButtonLayoutKey,
-          reinterpret_cast<void (*)(GConfClient*, guint, GConfEntry*, void*)>(
-              OnChangeNotificationThunk),
-          this, NULL, &error);
-      if (HandleGError(error, kButtonLayoutKey))
-        return;
-    }
-  }
-}
-
-void GConfTitlebarListener::OnChangeNotification(GConfClient* client,
-                                                 guint cnxn_id,
-                                                 GConfEntry* entry) {
-  if (strcmp(gconf_entry_get_key(entry), kButtonLayoutKey) == 0) {
-    GConfValue* gconf_value = gconf_entry_get_value(entry);
-    ParseAndStoreValue(gconf_value);
-
-    // Broadcast the new configuration to all windows:
-    for (std::set<BrowserTitlebar*>::const_iterator it = titlebars_.begin();
-         it != titlebars_.end(); ++it) {
-      (*it)->BuildButtons(current_value_);
-    }
-  }
-}
-
-bool GConfTitlebarListener::HandleGError(GError* error, const char* key) {
-  if (error != NULL) {
-    LOG(ERROR) << "Error with gconf key '" << key << "': " << error->message;
-    g_error_free(error);
-    g_object_unref(client_);
-    client_ = NULL;
-    return true;
-  }
-  return false;
-}
-
-void GConfTitlebarListener::ParseAndStoreValue(GConfValue* gconf_value) {
-  if (gconf_value) {
-    const char* value = gconf_value_get_string(gconf_value);
-    current_value_ = value ? value : BrowserTitlebar::kDefaultButtonString;
-  } else {
-    current_value_ = BrowserTitlebar::kDefaultButtonString;
-  }
-}