Moved ButtonInkDropDelegate logic into InkDropHostView and deleted InkDropDelegates.

ui/views/animation/button_ink_drop_delegate.cc

-// Copyright 2015 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 "ui/views/animation/button_ink_drop_delegate.h"
-
-#include "ui/events/event.h"
-#include "ui/events/scoped_target_handler.h"
-#include "ui/views/animation/ink_drop.h"
-#include "ui/views/animation/ink_drop_factory.h"
-#include "ui/views/animation/ink_drop_host.h"
-#include "ui/views/animation/ink_drop_state.h"
-#include "ui/views/view.h"
-
-namespace views {
-
-ButtonInkDropDelegate::ButtonInkDropDelegate(InkDropHost* ink_drop_host,
-                                             View* view)
-    : target_handler_(new ui::ScopedTargetHandler(view, this)),
-      ink_drop_host_(ink_drop_host),
-      ink_drop_(InkDropFactory::CreateInkDrop(ink_drop_host_)) {}
-
-ButtonInkDropDelegate::~ButtonInkDropDelegate() {
-}
-
-void ButtonInkDropDelegate::OnAction(InkDropState state) {
-  ink_drop_->AnimateToState(state);
-}
-
-void ButtonInkDropDelegate::SnapToActivated() {
-  ink_drop_->SnapToActivated();
-}
-
-void ButtonInkDropDelegate::SetHovered(bool is_hovered) {
-  ink_drop_->SetHovered(is_hovered);
-}
-
-InkDropState ButtonInkDropDelegate::GetTargetInkDropState() const {
-  return ink_drop_->GetTargetInkDropState();
-}
-
-InkDrop* ButtonInkDropDelegate::GetInkDrop() {
-  return ink_drop_.get();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// ui::EventHandler:
-
-void ButtonInkDropDelegate::OnMouseEvent(ui::MouseEvent* event) {
-  switch (event->type()) {
-    case ui::ET_MOUSE_ENTERED:
-      SetHovered(true);
-      break;
-    case ui::ET_MOUSE_EXITED:
-      SetHovered(false);
-      break;
-    default:
-      return;
-  }
-}
-
-void ButtonInkDropDelegate::OnGestureEvent(ui::GestureEvent* event) {
-  InkDropState current_ink_drop_state = ink_drop_->GetTargetInkDropState();
-
-  InkDropState ink_drop_state = InkDropState::HIDDEN;
-  switch (event->type()) {
-    case ui::ET_GESTURE_TAP_DOWN:
-      ink_drop_state = 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 = InkDropState::ALTERNATE_ACTION_PENDING;
-      break;
-    case ui::ET_GESTURE_LONG_TAP:
-      ink_drop_state = InkDropState::ALTERNATE_ACTION_TRIGGERED;
-      break;
-    case ui::ET_GESTURE_END:
-      if (current_ink_drop_state == InkDropState::ACTIVATED)
-        return;
-    // Fall through to ui::ET_GESTURE_SCROLL_BEGIN case.
-    case ui::ET_GESTURE_SCROLL_BEGIN:
-      ink_drop_state = InkDropState::HIDDEN;
-      break;
-    default:
-      return;
-  }
-
-  last_ink_drop_location_ = event->location();
-
-  if (ink_drop_state == InkDropState::HIDDEN &&
-      (current_ink_drop_state == InkDropState::ACTION_TRIGGERED ||
-       current_ink_drop_state == InkDropState::ALTERNATE_ACTION_TRIGGERED ||
-       current_ink_drop_state == 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_->AnimateToState(ink_drop_state);
-}
-
-}  // namespace views