Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/hover_controller_gtk.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/hover_controller_gtk.h"
-
-#include "base/message_loop/message_loop.h"
-#include "chrome/browser/ui/gtk/gtk_chrome_button.h"
-#include "ui/gfx/gtk_compat.h"
-
-static const gchar* kHoverControllerGtkKey = "__HOVER_CONTROLLER_GTK__";
-
-HoverControllerGtk::HoverControllerGtk(GtkWidget* button)
-    : throb_animation_(this),
-      hover_animation_(this),
-      button_(button) {
-  g_object_ref(button_);
-  gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
-
-  signals_.Connect(button_, "enter-notify-event",
-                   G_CALLBACK(OnEnterThunk), this);
-  signals_.Connect(button_, "leave-notify-event",
-                   G_CALLBACK(OnLeaveThunk), this);
-  signals_.Connect(button_, "destroy",
-                   G_CALLBACK(OnDestroyThunk), this);
-  signals_.Connect(button_, "hierarchy-changed",
-                   G_CALLBACK(OnHierarchyChangedThunk), this);
-
-#ifndef NDEBUG
-  if (g_object_get_data(G_OBJECT(button_), kHoverControllerGtkKey))
-    NOTREACHED();
-#endif  // !NDEBUG
-
-  g_object_set_data(G_OBJECT(button), kHoverControllerGtkKey, this);
-}
-
-HoverControllerGtk::~HoverControllerGtk() {
-}
-
-void HoverControllerGtk::StartThrobbing(int cycles) {
-  throb_animation_.StartThrobbing(cycles);
-}
-
-// static
-GtkWidget* HoverControllerGtk::CreateChromeButton() {
-  GtkWidget* widget = gtk_chrome_button_new();
-  new HoverControllerGtk(widget);
-  return widget;
-}
-
-// static
-HoverControllerGtk* HoverControllerGtk::GetHoverControllerGtk(
-    GtkWidget* button) {
-  return reinterpret_cast<HoverControllerGtk*>(
-      g_object_get_data(G_OBJECT(button), kHoverControllerGtkKey));
-}
-
-void HoverControllerGtk::Destroy() {
-  gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), -1.0);
-
-  g_object_set_data(G_OBJECT(button_), kHoverControllerGtkKey, NULL);
-  g_object_unref(button_);
-  button_ = NULL;
-
-  delete this;
-}
-
-void HoverControllerGtk::AnimationProgressed(const gfx::Animation* animation) {
-  if (!button_)
-    return;
-
-  // Ignore the hover animation if we are throbbing.
-  if (animation == &hover_animation_ && throb_animation_.is_animating())
-    return;
-
-  gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_),
-                                    animation->GetCurrentValue());
-}
-
-void HoverControllerGtk::AnimationEnded(const gfx::Animation* animation) {
-  if (!button_)
-    return;
-  if (animation != &throb_animation_)
-    return;
-
-  if (throb_animation_.cycles_remaining() <= 1)
-    gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
-}
-
-void HoverControllerGtk::AnimationCanceled(const gfx::Animation* animation) {
-  AnimationEnded(animation);
-}
-
-gboolean HoverControllerGtk::OnEnter(GtkWidget* widget,
-                                     GdkEventCrossing* event) {
-  hover_animation_.Show();
-
-  return FALSE;
-}
-
-gboolean HoverControllerGtk::OnLeave(GtkWidget* widget,
-                                     GdkEventCrossing* event) {
-  // When the user is holding a mouse button, we don't want to animate.
-  if (event->state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)) {
-    hover_animation_.Reset();
-    gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
-  } else {
-    hover_animation_.Hide();
-  }
-
-  return FALSE;
-}
-
-void HoverControllerGtk::OnHierarchyChanged(GtkWidget* widget,
-                                            GtkWidget* previous_toplevel) {
-  // GTK+ does not emit leave-notify-event signals when a widget
-  // becomes unanchored, so manually unset the hover states.
-  if (!gtk_widget_is_toplevel(gtk_widget_get_toplevel(widget))) {
-    gtk_widget_set_state(button_, GTK_STATE_NORMAL);
-    hover_animation_.Reset();
-    gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0.0);
-  }
-}
-
-void HoverControllerGtk::OnDestroy(GtkWidget* widget) {
-  Destroy();
-}