1 files changed, 95 insertions, 0 deletions
diff --git a/chrome/browser/gtk/throb_controller_gtk.cc b/chrome/browser/gtk/throb_controller_gtk.cc
new file mode 100644
index 0000000..422d388
--- /dev/null
+++ b/chrome/browser/gtk/throb_controller_gtk.cc
@@ -0,0 +1,95 @@
+// Copyright (c) 2010 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/gtk/throb_controller_gtk.h"
+
+#include "base/message_loop.h"
+#include "chrome/browser/gtk/gtk_chrome_button.h"
+
+static const gchar* kThrobControllerGtkKey = "__THROB_CONTROLLER_GTK__";
+
+ThrobControllerGtk::ThrobControllerGtk(GtkWidget* button)
+    : animation_(this),
+      button_(button) {
+  g_object_ref(button_);
+  g_signal_connect(button_, "destroy", G_CALLBACK(OnButtonDestroy), this);
+
+#ifndef NDEBUG
+  if (g_object_get_data(G_OBJECT(button_), kThrobControllerGtkKey))
+    NOTREACHED();
+#endif  // !NDEBUG
+
+  g_object_set_data(G_OBJECT(button), kThrobControllerGtkKey, this);
+}
+
+ThrobControllerGtk::~ThrobControllerGtk() {
+}
+
+void ThrobControllerGtk::StartThrobbing(int cycles) {
+  animation_.StartThrobbing(cycles);
+}
+
+// static
+ThrobControllerGtk* ThrobControllerGtk::GetThrobControllerGtk(
+    GtkWidget* button) {
+  return reinterpret_cast<ThrobControllerGtk*>(
+      g_object_get_data(G_OBJECT(button), kThrobControllerGtkKey));
+}
+
+// static
+void ThrobControllerGtk::ThrobFor(GtkWidget* button) {
+  if (!GTK_IS_CHROME_BUTTON(button)) {
+    NOTREACHED();
+    return;
+  }
+
+  (new ThrobControllerGtk(button))->
+      StartThrobbing(std::numeric_limits<int>::max());
+}
+
+void ThrobControllerGtk::Destroy() {
+  gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), -1.0);
+  g_signal_handlers_disconnect_by_func(
+      button_,
+      reinterpret_cast<gpointer>(OnButtonDestroy),
+      this);
+  g_object_set_data(G_OBJECT(button_), kThrobControllerGtkKey, NULL);
+  g_object_unref(button_);
+  button_ = NULL;
+
+  // Since this can be called from within AnimationEnded(), which is called
+  // while ThrobAnimation is still doing work, we need to let the stack unwind
+  // before |animation_| gets deleted.
+  MessageLoop::current()->DeleteSoon(FROM_HERE, this);
+}
+
+void ThrobControllerGtk::AnimationProgressed(const Animation* animation) {
+  if (!button_)
+    return;
+
+  gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_),
+                                    animation->GetCurrentValue());
+}
+
+void ThrobControllerGtk::AnimationEnded(const Animation* animation) {
+  if (!button_)
+    return;
+
+  if (animation_.cycles_remaining() <= 1)
+    Destroy();
+}
+
+void ThrobControllerGtk::AnimationCanceled(const Animation* animation) {
+  if (!button_)
+    return;
+
+  if (animation_.cycles_remaining() <= 1)
+    Destroy();
+}
+
+// static
+void ThrobControllerGtk::OnButtonDestroy(GtkWidget* widget,
+                                         ThrobControllerGtk* button) {
+  button->Destroy();
+}