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      1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/chromeos/wm_overview_favicon.h"
      6 
      7 #include <vector>
      8 
      9 #include "chrome/browser/chromeos/wm_ipc.h"
     10 #include "chrome/browser/chromeos/wm_overview_snapshot.h"
     11 #include "skia/ext/image_operations.h"
     12 #include "third_party/cros/chromeos_wm_ipc_enums.h"
     13 #include "third_party/skia/include/core/SkBitmap.h"
     14 #include "ui/base/x/x11_util.h"
     15 #include "views/controls/image_view.h"
     16 #include "views/controls/label.h"
     17 #include "views/layout/grid_layout.h"
     18 
     19 using std::vector;
     20 
     21 #if !defined(OS_CHROMEOS)
     22 #error This file is only meant to be compiled for ChromeOS
     23 #endif
     24 
     25 namespace chromeos {
     26 
     27 const int WmOverviewFavicon::kIconSize = 32;
     28 
     29 WmOverviewFavicon::WmOverviewFavicon()
     30     : WidgetGtk(TYPE_WINDOW),
     31       favicon_view_(NULL) {
     32 }
     33 
     34 void WmOverviewFavicon::Init(WmOverviewSnapshot* snapshot) {
     35   MakeTransparent();
     36 
     37   favicon_view_ = new views::ImageView();
     38 
     39   WidgetGtk::Init(NULL, gfx::Rect(0, 0, 0, 0));
     40 
     41   SetContentsView(favicon_view_);
     42 
     43   // Set the window type
     44   vector<int> params;
     45   params.push_back(ui::GetX11WindowFromGtkWidget(
     46       GTK_WIDGET(snapshot->GetNativeView())));
     47   WmIpc::instance()->SetWindowType(
     48       GetNativeView(),
     49       WM_IPC_WINDOW_CHROME_TAB_FAV_ICON,
     50       &params);
     51 }
     52 
     53 
     54 void WmOverviewFavicon::SetFavicon(const SkBitmap& image) {
     55   CHECK(favicon_view_) << "Init not called before setting favicon.";
     56   SkBitmap icon;
     57   if (image.width() && image.height()) {
     58     float aspect_ratio = static_cast<float>(image.width()) / image.height();
     59     int new_width = kIconSize;
     60     int new_height = kIconSize;
     61     if (aspect_ratio > 1.0f) {
     62       new_height = kIconSize / aspect_ratio;
     63     } else {
     64       new_width = kIconSize * aspect_ratio;
     65     }
     66     if (new_width && new_height) {
     67       icon = skia::ImageOperations::Resize(
     68           image, skia::ImageOperations::RESIZE_BOX,
     69           new_width, new_height);
     70     }
     71   }
     72 
     73   favicon_view_->SetImage(icon);
     74 
     75   // Reset the bounds to the size of the image.
     76   SetBounds(gfx::Rect(icon.width(), icon.height()));
     77 }
     78 
     79 }  // namespace chromeos
     80