Detect removed files and reflect the state in chrome://downloads and the download shelf

chrome/browser/ui/views/download/download_item_view.cc

 // Copyright (c) 2011 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/ui/views/download/download_item_view.h"
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/file_path.h"
@@ skipping 68 matching lines @@
 static const double kDownloadItemLuminanceMod = 0.8;
 
 DownloadItemView::DownloadItemView(DownloadItem* download,
     DownloadShelfView* parent,
     BaseDownloadItemModel* model)
   : warning_icon_(NULL),
     download_(download),
     parent_(parent),
     status_text_(UTF16ToWide(
         l10n_util::GetStringUTF16(IDS_DOWNLOAD_STATUS_STARTING))),
-    show_status_text_(true),
     body_state_(NORMAL),
     drop_down_state_(NORMAL),
     progress_angle_(download_util::kStartAngleDegrees),
     drop_down_pressed_(false),
     dragging_(false),
     starting_drag_(false),
     model_(model),
     save_button_(NULL),
     discard_button_(NULL),
     dangerous_download_label_(NULL),
@@ skipping 248 matching lines @@
   switch (download_->state()) {
     case DownloadItem::IN_PROGRESS:
       download_->is_paused() ? StopDownloadProgress() : StartDownloadProgress();
       break;
     case DownloadItem::INTERRUPTED:
       StopDownloadProgress();
       complete_animation_.reset(new ui::SlideAnimation(this));
       complete_animation_->SetSlideDuration(kInterruptedAnimationDurationMs);
       complete_animation_->SetTweenType(ui::Tween::LINEAR);
       complete_animation_->Show();
-      if (status_text.empty())
-        show_status_text_ = false;
       SchedulePaint();
       LoadIcon();
       break;
     case DownloadItem::COMPLETE:
       if (download_->auto_opened()) {
         parent_->RemoveDownloadView(this);  // This will delete us!
         return;
       }
       StopDownloadProgress();
       complete_animation_.reset(new ui::SlideAnimation(this));
       complete_animation_->SetSlideDuration(kCompleteAnimationDurationMs);
       complete_animation_->SetTweenType(ui::Tween::LINEAR);
       complete_animation_->Show();
-      if (status_text.empty())
-        show_status_text_ = false;
       SchedulePaint();
       LoadIcon();
       break;
     case DownloadItem::CANCELLED:
       StopDownloadProgress();
       LoadIcon();
       break;
     case DownloadItem::REMOVING:
       parent_->RemoveDownloadView(this);  // This will delete us!
       return;
@@ skipping 331 matching lines @@
                      (drop_down_image_set ?
                         normal_drop_down_image_set_.center->width() :
                         0);
 
   // May be caused by animation.
   if (center_width <= 0)
     return;
 
   // Draw status before button image to effectively lighten text.
   if (!IsDangerousMode()) {
-    if (show_status_text_) {
+    if (!status_text_.empty()) {
       int mirrored_x = GetMirroredXWithWidthInView(
           download_util::kSmallProgressIconSize, kTextWidth);
       // Add font_.height() to compensate for title, which is drawn later.
       int y = box_y_ + kVerticalPadding + font_.GetHeight() +
               kVerticalTextPadding;
       SkColor file_name_color = GetThemeProvider()->GetColor(
           ThemeService::COLOR_BOOKMARK_TEXT);
       // If text is light-on-dark, lightening it alone will do nothing.
       // Therefore we mute luminance a wee bit before drawing in this case.
       if (color_utils::RelativeLuminance(file_name_color) > 0.5)
@@ skipping 112 matching lines @@
       // Last, concat the whole string.
       filename = l10n_util::GetStringFUTF16(IDS_DOWNLOAD_STATUS_OPENING,
                                             filename_string);
     }
 
     int mirrored_x = GetMirroredXWithWidthInView(
         download_util::kSmallProgressIconSize, kTextWidth);
     SkColor file_name_color = GetThemeProvider()->GetColor(
         ThemeService::COLOR_BOOKMARK_TEXT);
     int y =
-        box_y_ + (show_status_text_ ? kVerticalPadding :
-                                      (box_height_ - font_.GetHeight()) / 2);
+        box_y_ + (status_text_.empty() ?
+                  ((box_height_ - font_.GetHeight()) / 2) : kVerticalPadding);
 
     // Draw the file's name.
     canvas->DrawStringInt(filename, font_,
                           IsEnabled() ? file_name_color :
                                         kFileNameDisabledColor,
                           mirrored_x, y, kTextWidth, font_.GetHeight());
   }
 
   // Load the icon.
   IconManager* im = g_browser_process->icon_manager();
@@ skipping 241 matching lines @@
   // If the name has changed, notify assistive technology that the name
   // has changed so they can announce it immediately.
   if (new_name != accessible_name_) {
     accessible_name_ = new_name;
     if (GetWidget()) {
       GetWidget()->NotifyAccessibilityEvent(
           this, ui::AccessibilityTypes::EVENT_NAME_CHANGED, true);
     }
   }
 }