[NTP] Remove app launch animation.

chrome/browser/ui/views/app_launched_animation_win.cc

-// Copyright (c) 2010 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/app_launched_animation.h"
-
-#include "chrome/browser/extensions/image_loading_tracker.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_icon_set.h"
-#include "chrome/common/extensions/extension_resource.h"
-#include "gfx/rect.h"
-#include "ui/base/animation/animation.h"
-#include "ui/base/animation/animation_delegate.h"
-#include "ui/base/animation/slide_animation.h"
-#include "views/controls/image_view.h"
-#include "views/widget/widget_win.h"
-
-namespace {
-
-// Start at 1, end at 0
-//    0ms You click the icon
-//    0ms The launcher and contents begins to fade out, the icon
-//        you clicked does not (stays opaque)
-//    0ms The app begins loading behind the launcher
-// +100ms The app icon begins to fade out.
-// +200ms The launcher finishes fading out
-// +350ms The app icon finishes fading out
-
-// How long the fade should take.
-static const int kDurationMS = 250;
-
-// The delay before the fade out should start.
-static const int kDelayMS = 100;
-
-// AppLaunchedAnimation creates an animation. It loads the icon for the
-// extension and once the image is loaded the animation starts. The icon fades
-// out after a short delay.
-class AppLaunchedAnimationWin : public ui::AnimationDelegate,
-                                public ImageLoadingTracker::Observer,
-                                public views::ImageView {
- public:
-  AppLaunchedAnimationWin(const Extension* extension, const gfx::Rect& rect);
-
- private:
-  // ui::AnimationDelegate
-  virtual void AnimationProgressed(const ui::Animation* animation);
-  virtual void AnimationCanceled(const ui::Animation* animation);
-  virtual void AnimationEnded(const ui::Animation* animation);
-
-  // We use a HWND for the popup so that it may float above any HWNDs in our UI.
-  views::WidgetWin* popup_;
-
-  // The rect to use for the popup.
-  gfx::Rect rect_;
-
-  // Used for loading extension application icon.
-  ImageLoadingTracker app_icon_loader_;
-
-  // ImageLoadingTracker::Observer.
-  virtual void OnImageLoaded(SkBitmap* image, ExtensionResource resource,
-                             int index);
-
-  // Hover animation.
-  scoped_ptr<ui::SlideAnimation> animation_;
-
-  DISALLOW_COPY_AND_ASSIGN(AppLaunchedAnimationWin);
-};
-
-AppLaunchedAnimationWin::AppLaunchedAnimationWin(const Extension* extension,
-                                                 const gfx::Rect& rect)
-    : popup_(NULL),
-      rect_(rect),
-      ALLOW_THIS_IN_INITIALIZER_LIST(app_icon_loader_(this)) {
-  DCHECK(extension);
-  app_icon_loader_.LoadImage(
-      extension,
-      extension->GetIconResource(Extension::EXTENSION_ICON_LARGE,
-                                 ExtensionIconSet::MATCH_EXACTLY),
-      rect_.size(),
-      ImageLoadingTracker::DONT_CACHE);
-}
-
-void AppLaunchedAnimationWin::AnimationCanceled(
-    const ui::Animation* animation) {
-  AnimationEnded(animation);
-}
-
-void AppLaunchedAnimationWin::AnimationEnded(const ui::Animation* animation) {
-  popup_->Close();
-}
-
-void AppLaunchedAnimationWin::AnimationProgressed(
-    const ui::Animation* animation) {
-  // GetCurrentValue goes from 1 to 0 since we are hiding.
-  const double current_value = 1.0 - animation->GetCurrentValue();
-  const double current_time = current_value * (kDelayMS + kDurationMS);
-
-  double opacity = 1.0 -
-      std::max(0.0, static_cast<double>(current_time - kDelayMS)) /
-          static_cast<double>(kDurationMS);
-
-  popup_->SetOpacity(static_cast<SkColor>(opacity * 255.0));
-  SchedulePaint();
-}
-
-void AppLaunchedAnimationWin::OnImageLoaded(SkBitmap* image,
-                                            ExtensionResource resource,
-                                            int index) {
-  if (image) {
-    SetImage(image);
-
-    popup_ = new views::WidgetWin;
-    popup_->set_window_style(WS_POPUP);
-    popup_->set_window_ex_style(WS_EX_LAYERED | WS_EX_TOOLWINDOW |
-                                WS_EX_TRANSPARENT);
-    popup_->SetOpacity(static_cast<SkColor>(255));
-
-    popup_->Init(NULL, rect_);
-    popup_->SetContentsView(this);
-    popup_->Show();
-
-    // Start animation.
-    animation_.reset(new ui::SlideAnimation(this));
-    animation_->SetSlideDuration(kDelayMS + kDurationMS);
-    animation_->SetTweenType(ui::Tween::LINEAR);
-    animation_->Reset(1.0);
-    animation_->Hide();
-  }
-}
-
-}  // namespace
-
-// static
-void AppLaunchedAnimation::Show(const Extension* extension,
-                                const gfx::Rect& rect) {
-  // The animation will delete itself when it's finished.
-  new AppLaunchedAnimationWin(extension, rect);
-}