src/xwalk/runtime/browser/android/xwalk_icon_helper.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Copyright (c) 2014 Intel Corporation. All rights reserved.
   3 // Use of this source code is governed by a BSD-style license that can be
   4 // found in the LICENSE file.
   5
   6 #include "xwalk/runtime/browser/android/xwalk_icon_helper.h"
   7
   8 #include "base/bind.h"
   9 #include "base/callback.h"
  10 #include "content/public/browser/browser_thread.h"
  11 #include "content/public/browser/web_contents.h"
  12 #include "content/public/common/favicon_url.h"
  13 #include "third_party/skia/include/core/SkBitmap.h"
  14 #include "ui/gfx/size.h"
  15
  16 using content::BrowserThread;
  17 using content::WebContents;
  18
  19 namespace xwalk {
  20
  21 XWalkIconHelper::XWalkIconHelper(WebContents* web_contents)
  22     : content::WebContentsObserver(web_contents),
  23       listener_(NULL) {
  24 }
  25
  26 XWalkIconHelper::~XWalkIconHelper() {
  27 }
  28
  29 void XWalkIconHelper::SetListener(Listener* listener) {
  30   listener_ = listener;
  31 }
  32
  33 void XWalkIconHelper::DownloadIcon(const GURL& icon_url) {
  34   web_contents()->DownloadImage(icon_url, true, 0,
  35       base::Bind(&XWalkIconHelper::DownloadFaviconCallback,
  36                  base::Unretained(this)));
  37 }
  38
  39 void XWalkIconHelper::DidUpdateFaviconURL(
  40     const std::vector<content::FaviconURL>& candidates) {
  41   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  42   for (std::vector<content::FaviconURL>::const_iterator i = candidates.begin();
  43        i != candidates.end(); ++i) {
  44     if (!i->icon_url.is_valid())
  45       continue;
  46
  47     switch (i->icon_type) {
  48       case content::FaviconURL::FAVICON:
  49         if (listener_) listener_->OnIconAvailable(i->icon_url);
  50         break;
  51       case content::FaviconURL::TOUCH_ICON:
  52         break;
  53       case content::FaviconURL::TOUCH_PRECOMPOSED_ICON:
  54         break;
  55       case content::FaviconURL::INVALID_ICON:
  56         break;
  57       default:
  58         NOTREACHED();
  59         break;
  60     }
  61   }
  62 }
  63
  64 void XWalkIconHelper::DownloadFaviconCallback(
  65     int id,
  66     int http_status_code,
  67     const GURL& image_url,
  68     const std::vector<SkBitmap>& bitmaps,
  69     const std::vector<gfx::Size>& original_bitmap_sizes) {
  70   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  71   if (http_status_code == 404 || bitmaps.size() == 0) return;
  72
  73   if (listener_) listener_->OnReceivedIcon(image_url, bitmaps[0]);
  74 }
  75
  76 }  // namespace xwalk