Adds ripple animation to extension buttons on a toolbar

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

Index: chrome/browser/ui/views/toolbar/toolbar_action_view.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_action_view.cc b/chrome/browser/ui/views/toolbar/toolbar_action_view.cc
index 2843f70437ac9c56e74b22e35113a71b86e3fd36..c20f1a22ed5d2459962b71ee2ee92ebd4ce36203 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_action_view.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_action_view.cc
@@ -26,6 +26,8 @@
 #include "ui/gfx/image/image_skia_operations.h"
 #include "ui/gfx/image/image_skia_source.h"
 #include "ui/resources/grit/ui_resources.h"
+#include "ui/views/animation/ink_drop_animation_controller.h"
+#include "ui/views/animation/ink_drop_animation_controller_factory.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/controls/menu/menu_controller.h"
 #include "ui/views/controls/menu/menu_model_adapter.h"
@@ -66,6 +68,9 @@ ToolbarActionView::ToolbarActionView(
       called_register_command_(false),
       wants_to_run_(false),
       menu_(nullptr),
+      ink_drop_animation_controller_(
+          views::InkDropAnimationControllerFactory::
+              CreateInkDropAnimationController(this)),
       weak_factory_(this) {
   set_id(VIEW_ID_BROWSER_ACTION);
   view_controller_->SetDelegate(this);
@@ -74,6 +79,17 @@ ToolbarActionView::ToolbarActionView(
 
   set_context_menu_controller(this);
 
+  const int kInkDropLargeSize = 32;
+  const int kInkDropLargeCornerRadius = 5;
+  const int kInkDropSmallSize = 24;
+  const int kInkDropSmallCornerRadius = 2;
+
+  ink_drop_animation_controller_->SetInkDropSize(
+      gfx::Size(kInkDropLargeSize, kInkDropLargeSize),
+      kInkDropLargeCornerRadius,
+      gfx::Size(kInkDropSmallSize, kInkDropSmallSize),
+      kInkDropSmallCornerRadius);
+
   // We also listen for browser theme changes on linux because a switch from or
   // to GTK requires that we regrab our browser action images.
   registrar_.Add(
@@ -99,12 +115,97 @@ ToolbarActionView::~ToolbarActionView() {
   view_controller_->SetDelegate(nullptr);
 }
 
+void ToolbarActionView::AddInkDropLayer(ui::Layer* ink_drop_layer) {
+  SetPaintToLayer(true);
+  SetFillsBoundsOpaquely(false);
+  image()->SetPaintToLayer(true);
+  image()->SetFillsBoundsOpaquely(false);
+
+  layer()->Add(ink_drop_layer);
+  layer()->StackAtBottom(ink_drop_layer);
+}
+
+void ToolbarActionView::RemoveInkDropLayer(ui::Layer* ink_drop_layer) {
+  layer()->Remove(ink_drop_layer);
+
+  image()->SetFillsBoundsOpaquely(true);
+  image()->SetPaintToLayer(false);
+  SetPaintToLayer(false);
+}
+
+gfx::Point ToolbarActionView::CalculateInkDropCenter() const {
+  return GetLocalBounds().CenterPoint();
+}
+
 gfx::Size ToolbarActionView::GetPreferredSize() const {
   return gfx::Size(ToolbarActionsBar::IconWidth(false),
                    ToolbarActionsBar::IconHeight());
 }
 
+void ToolbarActionView::Layout() {
+  MenuButton::Layout();
+  ink_drop_animation_controller_->SetInkDropCenter(CalculateInkDropCenter());
+}
+
+bool ToolbarActionView::OnMousePressed(const ui::MouseEvent& event) {
+  // views::MenuButton actions are only triggered by left mouse clicks.
+  if (event.IsLeftMouseButton()) {
+    ink_drop_animation_controller_->AnimateToState(
+        views::InkDropState::ACTION_PENDING);
+  }
+  return MenuButton::OnMousePressed(event);
+}
+
+void ToolbarActionView::OnGestureEvent(ui::GestureEvent* event) {
+  // TODO(varkha): refactor similar implementations in ToolbarButton,
+  // FindBarButton and here.
+  if (menu_) {
+    // While dropdown menu is showing the button should not handle gestures.
+    event->StopPropagation();
+    return;
+  }
+
+  MenuButton::OnGestureEvent(event);
+
+  views::InkDropState ink_drop_state = views::InkDropState::HIDDEN;
+  switch (event->type()) {
+    case ui::ET_GESTURE_TAP_DOWN:
+      ink_drop_state = views::InkDropState::ACTION_PENDING;
+      // The ui::ET_GESTURE_TAP_DOWN event needs to be marked as handled so that
+      // subsequent events for the gesture are sent to |this|.
+      event->SetHandled();
+      break;
+    case ui::ET_GESTURE_LONG_PRESS:
+      ink_drop_state = views::InkDropState::SLOW_ACTION_PENDING;
+      break;
+    case ui::ET_GESTURE_LONG_TAP:
+      ink_drop_state = views::InkDropState::SLOW_ACTION;
+      break;
+    case ui::ET_GESTURE_SCROLL_BEGIN:
+    case ui::ET_GESTURE_END:
+      ink_drop_state = views::InkDropState::HIDDEN;
+      break;
+    default:
+      return;
+  }
+
+  views::InkDropState current_ink_drop_state =
+      ink_drop_animation_controller_->GetInkDropState();
+
+  if (ink_drop_state == views::InkDropState::HIDDEN &&
+      (current_ink_drop_state == views::InkDropState::QUICK_ACTION ||
+       current_ink_drop_state == views::InkDropState::SLOW_ACTION ||
+       current_ink_drop_state == views::InkDropState::DEACTIVATED)) {
+    // These InkDropStates automatically transition to the HIDDEN state so we
+    // don't make an explicit call. Explicitly animating to HIDDEN in this case
+    // would prematurely pre-empt these animations.
+    return;
+  }
+  ink_drop_animation_controller_->AnimateToState(ink_drop_state);
+}
+
 void ToolbarActionView::OnDragDone() {
+  ink_drop_animation_controller_->AnimateToState(views::InkDropState::HIDDEN);
   views::MenuButton::OnDragDone();
   delegate_->OnToolbarActionViewDragDone();
 }
@@ -133,10 +234,16 @@ void ToolbarActionView::OnMenuButtonClicked(views::View* sender,
     context_menu_controller()->ShowContextMenuForView(this, point,
                                                       ui::MENU_SOURCE_NONE);
   } else {
+    ink_drop_animation_controller_->AnimateToState(
+        views::InkDropState::QUICK_ACTION);
     view_controller_->ExecuteAction(true);
   }
 }
 
+void ToolbarActionView::OnMenuButtonClickCanceled(views::View* sender) {
+  ink_drop_animation_controller_->AnimateToState(views::InkDropState::HIDDEN);
+}
+
 void ToolbarActionView::UpdateState() {
   content::WebContents* web_contents = GetCurrentWebContents();
   if (SessionTabHelper::IdForTab(web_contents) < 0)
@@ -295,6 +402,9 @@ void ToolbarActionView::DoShowContextMenu(
       delegate_->GetOverflowReferenceView()->GetWidget() :
       GetWidget();
 
+  ink_drop_animation_controller_->AnimateToState(
+      views::InkDropState::ACTIVATED);
+
   views::MenuModelAdapter adapter(context_menu_model);
   menu_ = adapter.CreateMenu();
   menu_runner_.reset(new views::MenuRunner(menu_, run_types));
@@ -304,8 +414,11 @@ void ToolbarActionView::DoShowContextMenu(
   if (menu_runner_->RunMenuAt(parent, this, gfx::Rect(screen_loc, size()),
                               views::MENU_ANCHOR_TOPLEFT,
                               source_type) == views::MenuRunner::MENU_DELETED) {
+    menu_ = nullptr;
     return;
   }
+  ink_drop_animation_controller_->AnimateToState(
+      views::InkDropState::DEACTIVATED);
 
   menu_runner_.reset();
   menu_ = nullptr;