Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/download/download_started_animation_gtk.cc

-// 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 "chrome/browser/download/download_started_animation.h"
-
-#include <math.h>
-
-#include <gtk/gtk.h>
-
-#include "base/message_loop/message_loop.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_view.h"
-#include "grit/theme_resources.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/animation/linear_animation.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/rect.h"
-
-namespace {
-
-// How long to spend moving downwards and fading out after waiting.
-const int kMoveTimeMs = 600;
-
-// The animation framerate.
-const int kFrameRateHz = 60;
-
-class DownloadStartedAnimationGtk : public gfx::LinearAnimation {
- public:
-  explicit DownloadStartedAnimationGtk(content::WebContents* web_contents);
-
-  // DownloadStartedAnimation will delete itself, but this is public so
-  // that we can use DeleteSoon().
-  virtual ~DownloadStartedAnimationGtk();
-
- private:
-  // Move the arrow to wherever it should currently be.
-  void Reposition();
-
-  // Shut down cleanly.
-  void Close();
-
-  // Animation implementation.
-  virtual void AnimateToState(double state) OVERRIDE;
-
-  // The top level window that floats over the browser and displays the
-  // image.
-  GtkWidget* popup_;
-
-  // Dimensions of the image.
-  int width_;
-  int height_;
-
-  // The content area at the start of the animation. We store this so that the
-  // download shelf's resizing of the content area doesn't cause the animation
-  // to move around. This means that once started, the animation won't move
-  // with the parent window, but it's so fast that this shouldn't cause too
-  // much heartbreak.
-  gfx::Rect web_contents_bounds_;
-
-  DISALLOW_COPY_AND_ASSIGN(DownloadStartedAnimationGtk);
-};
-
-DownloadStartedAnimationGtk::DownloadStartedAnimationGtk(
-    content::WebContents* web_contents)
-    : gfx::LinearAnimation(kMoveTimeMs, kFrameRateHz, NULL),
-      popup_(NULL) {
-  static GdkPixbuf* kDownloadImage = NULL;
-  if (!kDownloadImage) {
-    ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-    kDownloadImage = rb.GetNativeImageNamed(
-        IDR_DOWNLOAD_ANIMATION_BEGIN).ToGdkPixbuf();
-  }
-
-  width_ = gdk_pixbuf_get_width(kDownloadImage);
-  height_ = gdk_pixbuf_get_height(kDownloadImage);
-
-  // If we're too small to show the download image, then don't bother -
-  // the shelf will be enough.
-  web_contents->GetView()->GetContainerBounds(&web_contents_bounds_);
-  if (web_contents_bounds_.height() < height_)
-    return;
-
-  // TODO(estade): don't show up on the wrong virtual desktop.
-
-  popup_ = gtk_window_new(GTK_WINDOW_POPUP);
-  GtkWidget* image = gtk_image_new_from_pixbuf(kDownloadImage);
-  gtk_container_add(GTK_CONTAINER(popup_), image);
-
-  // Set the shape of the window to that of the arrow. Areas with
-  // opacity less than 0xff (i.e. <100% opacity) will be transparent.
-  GdkBitmap* mask = gdk_pixmap_new(NULL, width_, height_, 1);
-  gdk_pixbuf_render_threshold_alpha(kDownloadImage, mask,
-                                    0, 0,
-                                    0, 0, -1, -1,
-                                    0xff);
-  gtk_widget_shape_combine_mask(popup_, mask, 0, 0);
-  g_object_unref(mask);
-
-  Reposition();
-  gtk_widget_show_all(popup_);
-  // Make sure our window has focus, is brought to the top, etc.
-  gtk_window_present(GTK_WINDOW(popup_));
-
-  Start();
-}
-
-DownloadStartedAnimationGtk::~DownloadStartedAnimationGtk() {
-}
-
-void DownloadStartedAnimationGtk::Reposition() {
-  DCHECK(popup_);
-
-  // Align the image with the bottom left of the web contents (so that it
-  // points to the newly created download).
-  gtk_window_move(GTK_WINDOW(popup_),
-      web_contents_bounds_.x(),
-      static_cast<int>(web_contents_bounds_.bottom() -
-          height_ - height_ * (1 - GetCurrentValue())));
-}
-
-void DownloadStartedAnimationGtk::Close() {
-  DCHECK(popup_);
-
-  gtk_widget_destroy(popup_);
-  base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
-}
-
-void DownloadStartedAnimationGtk::AnimateToState(double state) {
-  if (state >= 1.0) {
-    Close();
-  } else {
-    Reposition();
-
-    // Start at zero, peak halfway and end at zero.
-    double opacity = std::min(1.0 - pow(GetCurrentValue() - 0.5, 2) * 4.0,
-                              static_cast<double>(1.0));
-
-    // This only works when there's a compositing manager running. Oh well.
-    gtk_window_set_opacity(GTK_WINDOW(popup_), opacity);
-  }
-}
-
-}  // namespace
-
-// static
-void DownloadStartedAnimation::Show(content::WebContents* web_contents) {
-  // The animation will delete itself.
-  new DownloadStartedAnimationGtk(web_contents);
-}