Revert 127268 - Ash: Add resize border shadow effect

* Add ResizeShadow that uses solid-color layers to draw the resize border shadow effect.
* Add ResizeShadowController to create ResizeShadows and track bounds changes for windows.
* Wire both into ToplevelWindowEventFilter to track mouse move/enter events near (but not inside) the window frame.

BUG=118325
TEST=visual, hover mouse near window edges, drag windows

Review URL: https://chromiumcodereview.appspot.com/9677070

TBR=jamescook@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9724005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127277 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 171 deletions

diff --git a/ash/wm/resize_shadow.cc b/ash/wm/resize_shadow.cc
deleted file mode 100644
index 983fdfb..0000000
--- a/ash/wm/resize_shadow.cc
+++ /dev/null
@@ -1,171 +0,0 @@
-// Copyright (c) 2012 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 "ash/wm/resize_shadow.h"
-
-#include "grit/ui_resources.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/aura/window.h"
-#include "ui/base/animation/slide_animation.h"
-#include "ui/base/hit_test.h"
-#include "ui/gfx/compositor/layer.h"
-#include "ui/gfx/compositor/scoped_layer_animation_settings.h"
-
-namespace {
-
-// Height or width for the resize border shadow.
-const int kShadowSize = 6;
-// Amount to inset the resize effect from the window corners.
-const int kShadowInset = 4;
-// Color for resize effect.
-const SkColor kShadowLayerColor = SkColorSetRGB(0, 0, 0);
-// Final opacity for resize effect.
-const int kShadowTargetOpacity = 64;
-// Animation time for resize effect in milliseconds.
-const int kShadowSlideDurationMs = 200;
-
-}  // namespace
-
-namespace ash {
-namespace internal {
-
-ResizeShadow::ResizeShadow() {}
-
-ResizeShadow::~ResizeShadow() {}
-
-void ResizeShadow::Init(aura::Window* window) {
-  ui::Layer* parent = window->layer();
-  InitLayer(parent, &top_layer_);
-  InitLayer(parent, &left_layer_);
-  InitLayer(parent, &right_layer_);
-  InitLayer(parent, &bottom_layer_);
-  InitAnimation(&top_animation_);
-  InitAnimation(&left_animation_);
-  InitAnimation(&right_animation_);
-  InitAnimation(&bottom_animation_);
-}
-
-void ResizeShadow::ShowForHitTest(int hit_test) {
-  // TODO(jamescook): Add support for top_left, top_right, bottom_left, and
-  // bottom_right corners.  This approach matches the mocks but looks a little
-  // funny.
-  bool top = false;
-  bool left = false;
-  bool right = false;
-  bool bottom = false;
-  switch (hit_test) {
-    case HTTOPLEFT:
-      top = true;
-      left = true;
-      break;
-    case HTTOP:
-      top = true;
-      break;
-    case HTTOPRIGHT:
-      top = true;
-      right = true;
-      break;
-    case HTLEFT:
-      left = true;
-      break;
-    case HTRIGHT:
-      right = true;
-      break;
-    case HTBOTTOMLEFT:
-      left = true;
-      bottom = true;
-      break;
-    case HTBOTTOM:
-      bottom = true;
-      break;
-    case HTBOTTOMRIGHT:
-      bottom = true;
-      right = true;
-      break;
-    default:
-      break;
-  }
-  if (top)
-    top_animation_->Show();
-  else
-    top_animation_->Hide();
-  if (left)
-    left_animation_->Show();
-  else
-    left_animation_->Hide();
-  if (right)
-    right_animation_->Show();
-  else
-    right_animation_->Hide();
-  if (bottom)
-    bottom_animation_->Show();
-  else
-    bottom_animation_->Hide();
-}
-
-void ResizeShadow::Hide() {
-  // Small optimization since we frequently invoke Hide().
-  if (top_animation_->IsShowing() ||
-      left_animation_->IsShowing() ||
-      right_animation_->IsShowing() ||
-      bottom_animation_->IsShowing())
-    ShowForHitTest(HTNOWHERE);
-}
-
-void ResizeShadow::Layout(const gfx::Rect& bounds) {
-  // Position the resize border effects near the window edges.
-  top_layer_->SetBounds(gfx::Rect(kShadowInset,
-                                  -kShadowSize,
-                                  bounds.width() - 2 * kShadowInset,
-                                  kShadowSize));
-  bottom_layer_->SetBounds(gfx::Rect(kShadowInset,
-                                     bounds.height(),
-                                     bounds.width() - 2 * kShadowInset,
-                                     kShadowSize));
-  left_layer_->SetBounds(gfx::Rect(-kShadowSize,
-                                   kShadowInset,
-                                   kShadowSize,
-                                   bounds.height() - 2 * kShadowInset));
-  right_layer_->SetBounds(gfx::Rect(bounds.width(),
-                                    kShadowInset,
-                                    kShadowSize,
-                                    bounds.height() - 2 * kShadowInset));
-}
-
-void ResizeShadow::AnimationProgressed(const ui::Animation* animation) {
-  int opacity = animation->CurrentValueBetween(0, kShadowTargetOpacity);
-  if (animation == top_animation_.get())
-    UpdateLayerOpacity(top_layer_.get(), opacity);
-  else if (animation == left_animation_.get())
-    UpdateLayerOpacity(left_layer_.get(), opacity);
-  else if (animation == right_animation_.get())
-    UpdateLayerOpacity(right_layer_.get(), opacity);
-  else if (animation == bottom_animation_.get())
-    UpdateLayerOpacity(bottom_layer_.get(), opacity);
-}
-
-void ResizeShadow::InitLayer(ui::Layer* parent,
-                              scoped_ptr<ui::Layer>* new_layer) {
-  // Use solid colors because they don't require video memory.
-  new_layer->reset(new ui::Layer(ui::Layer::LAYER_SOLID_COLOR));
-  // Transparency must be part of the color for solid color layers.
-  // Start fully transparent so we can smoothly animate in.
-  new_layer->get()->SetColor(SkColorSetARGB(0, 0, 0, 0));
-  new_layer->get()->SetVisible(false);
-  parent->Add(new_layer->get());
-}
-
-void ResizeShadow::InitAnimation(scoped_ptr<ui::SlideAnimation>* animation) {
-  animation->reset(new ui::SlideAnimation(this));
-  animation->get()->SetSlideDuration(kShadowSlideDurationMs);
-}
-
-void ResizeShadow::UpdateLayerOpacity(ui::Layer* layer, int opacity) {
-  SkColor color = SkColorSetA(kShadowLayerColor, opacity);
-  layer->SetColor(color);
-  layer->SetVisible(opacity != 0);
-}
-
-}  // namespace internal
-}  // namespace ash