Added material design mouse hover feedback support.

chrome/browser/ui/views/toolbar/toolbar_button.cc

 // Copyright 2013 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/views/toolbar/toolbar_button.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 133 matching lines @@
   if (IsTriggerableEvent(event))
     show_menu_factory_.InvalidateWeakPtrs();
 
   if (!HitTestPoint(event.location()))
     ink_drop_animation_controller_->AnimateToState(views::InkDropState::HIDDEN);
 }
 
 void ToolbarButton::OnMouseCaptureLost() {
 }
 
+void ToolbarButton::OnMouseEntered(const ui::MouseEvent& event) {
+  UpdateInkDropHoverState();
+}
+
+void ToolbarButton::OnMouseMoved(const ui::MouseEvent& event) {
+  UpdateInkDropHoverState();

[sadrul, 2015/11/04 19:58:10]

Is it not sufficient to update the state from enter/exit only?

[bruthig, 2015/11/11 21:48:44]

Removed.

+}
+
 void ToolbarButton::OnMouseExited(const ui::MouseEvent& event) {
+  UpdateInkDropHoverState();
+
   // Starting a drag results in a MouseExited, we need to ignore it.
   // A right click release triggers an exit event. We want to
   // remain in a PUSHED state until the drop down menu closes.
   if (state_ != STATE_DISABLED && !InDrag() && state_ != STATE_PRESSED)
     SetState(STATE_NORMAL);
 }
 
 void ToolbarButton::OnGestureEvent(ui::GestureEvent* event) {
   if (menu_showing_) {
     // While dropdown menu is showing the button should not handle gestures.
@@ skipping 42 matching lines @@
   scoped_ptr<views::LabelButtonBorder> border =
       views::LabelButton::CreateDefaultBorder();
 
   ui::ThemeProvider* provider = GetThemeProvider();
   if (provider && provider->UsingSystemTheme())
     border->set_insets(GetLayoutInsets(TOOLBAR_BUTTON));
 
   return border.Pass();
 }
 
+void ToolbarButton::OnEnabledChanged() {
+  UpdateInkDropHoverState();
+}
+
 void ToolbarButton::ShowContextMenuForView(View* source,
                                            const gfx::Point& point,
                                            ui::MenuSourceType source_type) {
   if (!enabled())
     return;
 
   show_menu_factory_.InvalidateWeakPtrs();
   ShowDropDownMenu(source_type);
 }
 
@@ skipping 112 matching lines @@
 
   // Set the state back to normal after the drop down menu is closed.
   if (state_ != STATE_DISABLED)
     SetState(STATE_NORMAL);
 }
 
 gfx::Point ToolbarButton::CalculateInkDropCenter() const {
   return GetLocalBounds().CenterPoint();
 }
 
+void ToolbarButton::UpdateInkDropHoverState() {
+  ink_drop_animation_controller_->SetHovered(enabled() && IsMouseHovered());
+}
+
 const char* ToolbarButton::GetClassName() const {
   return "ToolbarButton";
 }