1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "chrome/browser/ui/gtk/hover_controller_gtk.h"
7 #include "base/message_loop/message_loop.h"
8 #include "chrome/browser/ui/gtk/gtk_chrome_button.h"
9 #include "ui/gfx/gtk_compat.h"
11 static const gchar* kHoverControllerGtkKey = "__HOVER_CONTROLLER_GTK__";
13 HoverControllerGtk::HoverControllerGtk(GtkWidget* button)
14 : throb_animation_(this),
15 hover_animation_(this),
17 g_object_ref(button_);
18 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
20 signals_.Connect(button_, "enter-notify-event",
21 G_CALLBACK(OnEnterThunk), this);
22 signals_.Connect(button_, "leave-notify-event",
23 G_CALLBACK(OnLeaveThunk), this);
24 signals_.Connect(button_, "destroy",
25 G_CALLBACK(OnDestroyThunk), this);
26 signals_.Connect(button_, "hierarchy-changed",
27 G_CALLBACK(OnHierarchyChangedThunk), this);
30 if (g_object_get_data(G_OBJECT(button_), kHoverControllerGtkKey))
34 g_object_set_data(G_OBJECT(button), kHoverControllerGtkKey, this);
37 HoverControllerGtk::~HoverControllerGtk() {
40 void HoverControllerGtk::StartThrobbing(int cycles) {
41 throb_animation_.StartThrobbing(cycles);
45 GtkWidget* HoverControllerGtk::CreateChromeButton() {
46 GtkWidget* widget = gtk_chrome_button_new();
47 new HoverControllerGtk(widget);
52 HoverControllerGtk* HoverControllerGtk::GetHoverControllerGtk(
54 return reinterpret_cast<HoverControllerGtk*>(
55 g_object_get_data(G_OBJECT(button), kHoverControllerGtkKey));
58 void HoverControllerGtk::Destroy() {
59 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), -1.0);
61 g_object_set_data(G_OBJECT(button_), kHoverControllerGtkKey, NULL);
62 g_object_unref(button_);
68 void HoverControllerGtk::AnimationProgressed(const gfx::Animation* animation) {
72 // Ignore the hover animation if we are throbbing.
73 if (animation == &hover_animation_ && throb_animation_.is_animating())
76 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_),
77 animation->GetCurrentValue());
80 void HoverControllerGtk::AnimationEnded(const gfx::Animation* animation) {
83 if (animation != &throb_animation_)
86 if (throb_animation_.cycles_remaining() <= 1)
87 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
90 void HoverControllerGtk::AnimationCanceled(const gfx::Animation* animation) {
91 AnimationEnded(animation);
94 gboolean HoverControllerGtk::OnEnter(GtkWidget* widget,
95 GdkEventCrossing* event) {
96 hover_animation_.Show();
101 gboolean HoverControllerGtk::OnLeave(GtkWidget* widget,
102 GdkEventCrossing* event) {
103 // When the user is holding a mouse button, we don't want to animate.
104 if (event->state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)) {
105 hover_animation_.Reset();
106 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0);
108 hover_animation_.Hide();
114 void HoverControllerGtk::OnHierarchyChanged(GtkWidget* widget,
115 GtkWidget* previous_toplevel) {
116 // GTK+ does not emit leave-notify-event signals when a widget
117 // becomes unanchored, so manually unset the hover states.
118 if (!gtk_widget_is_toplevel(gtk_widget_get_toplevel(widget))) {
119 gtk_widget_set_state(button_, GTK_STATE_NORMAL);
120 hover_animation_.Reset();
121 gtk_chrome_button_set_hover_state(GTK_CHROME_BUTTON(button_), 0.0);
125 void HoverControllerGtk::OnDestroy(GtkWidget* widget) {