Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtk2ui/gconf_listener.cc

Index: chrome/browser/ui/libgtk2ui/gconf_listener.cc
diff --git a/chrome/browser/ui/libgtk2ui/gconf_listener.cc b/chrome/browser/ui/libgtk2ui/gconf_listener.cc
deleted file mode 100644
index 969910fce227d4312d4b35110ef8e575ec6a161f..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/libgtk2ui/gconf_listener.cc
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright 2014 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/gconf_listener.h"
-
-#include <gtk/gtk.h>
-
-#include <memory>
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/environment.h"
-#include "base/nix/xdg_util.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_tokenizer.h"
-#include "chrome/browser/ui/libgtk2ui/gtk2_ui.h"
-#include "ui/base/x/x11_util.h"
-#include "ui/views/window/frame_buttons.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";
-
-// The GConf key we read for what to do in case of middle clicks on non client
-// area. Even through the key has "metacity" in it, it's shared between
-// metacity and compiz.
-const char kMiddleClickActionKey[] =
-    "/apps/metacity/general/action_middle_click_titlebar";
-
-// 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";
-
-const char kDefaultButtonString[] = ":minimize,maximize,close";
-
-}  // namespace
-
-namespace libgtk2ui {
-
-// Public interface:
-
-GConfListener::GConfListener(Gtk2UI* delegate)
-    : delegate_(delegate),
-      client_(NULL) {
-  std::unique_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_) {
-      // Register that we're interested in the values of this directory.
-      GError* error = NULL;
-      gconf_client_add_dir(client_, kMetacityGeneral,
-                           GCONF_CLIENT_PRELOAD_ONELEVEL, &error);
-      if (HandleGError(error, kMetacityGeneral))
-        return;
-
-      // Get the initial value of the keys we're interested in.
-      GetAndRegister(kButtonLayoutKey,
-                     base::Bind(&GConfListener::ParseAndStoreButtonValue,
-                                base::Unretained(this)));
-      GetAndRegister(kMiddleClickActionKey,
-                     base::Bind(&GConfListener::ParseAndStoreMiddleClickValue,
-                                base::Unretained(this)));
-    }
-  }
-}
-
-GConfListener::~GConfListener() {
-}
-
-// Private:
-
-void GConfListener::GetAndRegister(
-    const char* key_to_subscribe,
-    const base::Callback<void(GConfValue*)>& initial_setter) {
-  GError* error = NULL;
-  GConfValue* gconf_value = gconf_client_get(client_, key_to_subscribe,
-                                             &error);
-  if (HandleGError(error, key_to_subscribe))
-    return;
-  initial_setter.Run(gconf_value);
-  if (gconf_value)
-    gconf_value_free(gconf_value);
-
-  // Register to get notifies about changes to this key.
-  gconf_client_notify_add(
-      client_, key_to_subscribe,
-      reinterpret_cast<void (*)(GConfClient*, guint, GConfEntry*, void*)>(
-          OnChangeNotificationThunk),
-      this, NULL, &error);
-  if (HandleGError(error, key_to_subscribe))
-    return;
-}
-
-void GConfListener::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);
-    ParseAndStoreButtonValue(gconf_value);
-  } else if (strcmp(gconf_entry_get_key(entry), kMiddleClickActionKey) == 0) {
-    GConfValue* gconf_value = gconf_entry_get_value(entry);
-    ParseAndStoreMiddleClickValue(gconf_value);
-  }
-}
-
-bool GConfListener::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 GConfListener::ParseAndStoreButtonValue(GConfValue* gconf_value) {
-  std::string button_string;
-  if (gconf_value) {
-    const char* value = gconf_value_get_string(gconf_value);
-    button_string = value ? value : kDefaultButtonString;
-  } else {
-    button_string = kDefaultButtonString;
-  }
-
-  // Parse the button_layout string.
-  std::vector<views::FrameButton> leading_buttons;
-  std::vector<views::FrameButton> trailing_buttons;
-  bool left_side = true;
-  base::StringTokenizer tokenizer(button_string, ":,");
-  tokenizer.set_options(base::StringTokenizer::RETURN_DELIMS);
-  while (tokenizer.GetNext()) {
-    if (tokenizer.token_is_delim()) {
-      if (*tokenizer.token_begin() == ':')
-        left_side = false;
-    } else {
-      base::StringPiece token = tokenizer.token_piece();
-      if (token == "minimize") {
-        (left_side ? leading_buttons : trailing_buttons).push_back(
-            views::FRAME_BUTTON_MINIMIZE);
-      } else if (token == "maximize") {
-        (left_side ? leading_buttons : trailing_buttons).push_back(
-            views::FRAME_BUTTON_MAXIMIZE);
-      } else if (token == "close") {
-        (left_side ? leading_buttons : trailing_buttons).push_back(
-            views::FRAME_BUTTON_CLOSE);
-      }
-    }
-  }
-
-  delegate_->SetWindowButtonOrdering(leading_buttons, trailing_buttons);
-}
-
-void GConfListener::ParseAndStoreMiddleClickValue(GConfValue* gconf_value) {
-  Gtk2UI::NonClientMiddleClickAction action =
-      views::LinuxUI::MIDDLE_CLICK_ACTION_LOWER;
-  if (gconf_value) {
-    const char* value = gconf_value_get_string(gconf_value);
-
-    if (strcmp(value, "none") == 0) {
-      action = views::LinuxUI::MIDDLE_CLICK_ACTION_NONE;
-    } else if (strcmp(value, "lower") == 0) {
-      action = views::LinuxUI::MIDDLE_CLICK_ACTION_LOWER;
-    } else if (strcmp(value, "minimize") == 0) {
-      action = views::LinuxUI::MIDDLE_CLICK_ACTION_MINIMIZE;
-    } else if (strcmp(value, "toggle-maximize") == 0) {
-      action = views::LinuxUI::MIDDLE_CLICK_ACTION_TOGGLE_MAXIMIZE;
-    } else {
-      // While we want to have the default state be lower if there isn't a
-      // value, we want to default to no action if the user has explicitly
-      // chose an action that we don't implement.
-      action = views::LinuxUI::MIDDLE_CLICK_ACTION_NONE;
-    }
-  }
-
-  delegate_->SetNonClientMiddleClickAction(action);
-}
-
-}  // namespace libgtk2ui