Revert of Replace AllAppsTileItemView with ArrowExpandView

ui/app_list/views/expand_arrow_view.cc

Index: ui/app_list/views/expand_arrow_view.cc
diff --git a/ui/app_list/views/expand_arrow_view.cc b/ui/app_list/views/expand_arrow_view.cc
deleted file mode 100644
index 632d3e1855e48ba3cfaf3e8ec641cc88d4522eab..0000000000000000000000000000000000000000
--- a/ui/app_list/views/expand_arrow_view.cc
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2017 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/app_list/views/expand_arrow_view.h"
-
-#include "base/metrics/histogram_macros.h"
-#include "ui/app_list/app_list_constants.h"
-#include "ui/app_list/vector_icons/vector_icons.h"
-#include "ui/app_list/views/app_list_view.h"
-#include "ui/app_list/views/contents_view.h"
-#include "ui/gfx/paint_vector_icon.h"
-#include "ui/views/animation/flood_fill_ink_drop_ripple.h"
-#include "ui/views/animation/ink_drop_highlight.h"
-#include "ui/views/animation/ink_drop_impl.h"
-#include "ui/views/animation/ink_drop_mask.h"
-#include "ui/views/animation/ink_drop_painted_layer_delegates.h"
-#include "ui/views/controls/image_view.h"
-
-namespace app_list {
-
-namespace {
-
-constexpr int kExpandArrowTileSize = 36;
-constexpr int kExpandArrowIconSize = 12;
-constexpr int kInkDropRadius = 18;
-
-constexpr SkColor kExpandArrowColor = SK_ColorWHITE;
-constexpr SkColor kInkDropRippleColor =
-    SkColorSetARGBMacro(0x14, 0xFF, 0xFF, 0xFF);
-constexpr SkColor kInkDropHighlightColor =
-    SkColorSetARGBMacro(0xF, 0xFF, 0xFF, 0xFF);
-
-}  // namespace
-
-ExpandArrowView::ExpandArrowView(ContentsView* contents_view,
-                                 AppListView* app_list_view)
-    : views::CustomButton(this),
-      contents_view_(contents_view),
-      app_list_view_(app_list_view) {
-  icon_ = new views::ImageView;
-  icon_->SetVerticalAlignment(views::ImageView::CENTER);
-  icon_->SetImage(gfx::CreateVectorIcon(kIcArrowUpIcon, kExpandArrowIconSize,
-                                        kExpandArrowColor));
-  AddChildView(icon_);
-
-  SetInkDropMode(InkDropHostView::InkDropMode::ON);
-}
-
-ExpandArrowView::~ExpandArrowView() {}
-
-void ExpandArrowView::ButtonPressed(views::Button* sender,
-                                    const ui::Event& event) {
-  UMA_HISTOGRAM_ENUMERATION(kPageOpenedHistogram, AppListModel::STATE_APPS,
-                            AppListModel::STATE_LAST);
-
-  contents_view_->SetActiveState(AppListModel::STATE_APPS);
-  app_list_view_->SetState(AppListView::FULLSCREEN_ALL_APPS);
-  GetInkDrop()->AnimateToState(views::InkDropState::ACTION_TRIGGERED);
-}
-
-gfx::Size ExpandArrowView::CalculatePreferredSize() const {
-  return gfx::Size(kExpandArrowTileSize, kExpandArrowTileSize);
-}
-
-void ExpandArrowView::Layout() {
-  gfx::Rect rect(GetContentsBounds());
-  gfx::Point center = rect.CenterPoint();
-  rect.SetRect(center.x() - kExpandArrowIconSize / 2,
-               center.y() - kExpandArrowIconSize / 2, kExpandArrowIconSize,
-               kExpandArrowIconSize);
-  icon_->SetBoundsRect(rect);
-}
-
-std::unique_ptr<views::InkDrop> ExpandArrowView::CreateInkDrop() {
-  std::unique_ptr<views::InkDropImpl> ink_drop =
-      CustomButton::CreateDefaultInkDropImpl();
-  ink_drop->SetShowHighlightOnHover(false);
-  ink_drop->SetShowHighlightOnFocus(true);
-  ink_drop->SetAutoHighlightMode(
-      views::InkDropImpl::AutoHighlightMode::SHOW_ON_RIPPLE);
-  return std::move(ink_drop);
-}
-
-std::unique_ptr<views::InkDropMask> ExpandArrowView::CreateInkDropMask() const {
-  return base::MakeUnique<views::CircleInkDropMask>(
-      size(), GetLocalBounds().CenterPoint(), kInkDropRadius);
-}
-
-std::unique_ptr<views::InkDropRipple> ExpandArrowView::CreateInkDropRipple()
-    const {
-  gfx::Point center = GetLocalBounds().CenterPoint();
-  gfx::Rect bounds(center.x() - kInkDropRadius, center.y() - kInkDropRadius,
-                   2 * kInkDropRadius, 2 * kInkDropRadius);
-  return base::MakeUnique<views::FloodFillInkDropRipple>(
-      size(), GetLocalBounds().InsetsFrom(bounds),
-      GetInkDropCenterBasedOnLastEvent(), kInkDropRippleColor, 1.0f);
-}
-
-std::unique_ptr<views::InkDropHighlight>
-ExpandArrowView::CreateInkDropHighlight() const {
-  return base::MakeUnique<views::InkDropHighlight>(
-      gfx::PointF(GetLocalBounds().CenterPoint()),
-      base::MakeUnique<views::CircleLayerDelegate>(kInkDropHighlightColor,
-                                                   kInkDropRadius));
-}
-
-}  // namespace app_list