components/favicon/content/content_favicon_driver.cc

   1 // Copyright 2015 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 "components/favicon/content/content_favicon_driver.h"
   6
   7 #include "base/bind.h"
   8 #include "components/favicon/content/favicon_url_util.h"
   9 #include "components/favicon/core/favicon_url.h"
  10 #include "content/public/browser/browser_context.h"
  11 #include "content/public/browser/favicon_status.h"
  12 #include "content/public/browser/navigation_controller.h"
  13 #include "content/public/browser/navigation_details.h"
  14 #include "content/public/browser/navigation_entry.h"
  15 #include "content/public/common/favicon_url.h"
  16 #include "ui/gfx/image/image.h"
  17
  18 DEFINE_WEB_CONTENTS_USER_DATA_KEY(favicon::ContentFaviconDriver);
  19
  20 namespace favicon {
  21
  22 // static
  23 void ContentFaviconDriver::CreateForWebContents(
  24     content::WebContents* web_contents,
  25     FaviconService* favicon_service,
  26     history::HistoryService* history_service,
  27     bookmarks::BookmarkModel* bookmark_model) {
  28   if (FromWebContents(web_contents))
  29     return;
  30
  31   web_contents->SetUserData(
  32       UserDataKey(), new ContentFaviconDriver(web_contents, favicon_service,
  33                                               history_service, bookmark_model));
  34 }
  35
  36 gfx::Image ContentFaviconDriver::GetFavicon() const {
  37   // Like GetTitle(), we also want to use the favicon for the last committed
  38   // entry rather than a pending navigation entry.
  39   const content::NavigationController& controller =
  40       web_contents()->GetController();
  41   content::NavigationEntry* entry = controller.GetTransientEntry();
  42   if (entry)
  43     return entry->GetFavicon().image;
  44
  45   entry = controller.GetLastCommittedEntry();
  46   if (entry)
  47     return entry->GetFavicon().image;
  48   return gfx::Image();
  49 }
  50
  51 bool ContentFaviconDriver::FaviconIsValid() const {
  52   const content::NavigationController& controller =
  53       web_contents()->GetController();
  54   content::NavigationEntry* entry = controller.GetTransientEntry();
  55   if (entry)
  56     return entry->GetFavicon().valid;
  57
  58   entry = controller.GetLastCommittedEntry();
  59   if (entry)
  60     return entry->GetFavicon().valid;
  61
  62   return false;
  63 }
  64
  65 int ContentFaviconDriver::StartDownload(const GURL& url, int max_image_size) {
  66   if (WasUnableToDownloadFavicon(url)) {
  67     DVLOG(1) << "Skip Failed FavIcon: " << url;
  68     return 0;
  69   }
  70
  71   bool bypass_cache = (bypass_cache_page_url_ == GetActiveURL());
  72   bypass_cache_page_url_ = GURL();
  73
  74   return web_contents()->DownloadImage(
  75       url, true, max_image_size, bypass_cache,
  76       base::Bind(&FaviconDriverImpl::DidDownloadFavicon,
  77                  base::Unretained(this)));
  78 }
  79
  80 bool ContentFaviconDriver::IsOffTheRecord() {
  81   DCHECK(web_contents());
  82   return web_contents()->GetBrowserContext()->IsOffTheRecord();
  83 }
  84
  85 GURL ContentFaviconDriver::GetActiveURL() {
  86   content::NavigationEntry* entry =
  87       web_contents()->GetController().GetLastCommittedEntry();
  88   return entry ? entry->GetURL() : GURL();
  89 }
  90
  91 base::string16 ContentFaviconDriver::GetActiveTitle() {
  92   content::NavigationEntry* entry =
  93       web_contents()->GetController().GetLastCommittedEntry();
  94   return entry ? entry->GetTitle() : base::string16();
  95 }
  96
  97 bool ContentFaviconDriver::GetActiveFaviconValidity() {
  98   return GetFaviconStatus().valid;
  99 }
 100
 101 void ContentFaviconDriver::SetActiveFaviconValidity(bool valid) {
 102   GetFaviconStatus().valid = valid;
 103 }
 104
 105 GURL ContentFaviconDriver::GetActiveFaviconURL() {
 106   return GetFaviconStatus().url;
 107 }
 108
 109 void ContentFaviconDriver::SetActiveFaviconURL(const GURL& url) {
 110   GetFaviconStatus().url = url;
 111 }
 112
 113 gfx::Image ContentFaviconDriver::GetActiveFaviconImage() {
 114   return GetFaviconStatus().image;
 115 }
 116
 117 void ContentFaviconDriver::SetActiveFaviconImage(const gfx::Image& image) {
 118   GetFaviconStatus().image = image;
 119 }
 120
 121 content::FaviconStatus& ContentFaviconDriver::GetFaviconStatus() {
 122   DCHECK(web_contents()->GetController().GetLastCommittedEntry());
 123   return web_contents()->GetController().GetLastCommittedEntry()->GetFavicon();
 124 }
 125
 126 ContentFaviconDriver::ContentFaviconDriver(
 127     content::WebContents* web_contents,
 128     FaviconService* favicon_service,
 129     history::HistoryService* history_service,
 130     bookmarks::BookmarkModel* bookmark_model)
 131     : content::WebContentsObserver(web_contents),
 132       FaviconDriverImpl(favicon_service, history_service, bookmark_model) {
 133 }
 134
 135 ContentFaviconDriver::~ContentFaviconDriver() {
 136 }
 137
 138 void ContentFaviconDriver::NotifyFaviconUpdated(bool icon_url_changed) {
 139   FaviconDriverImpl::NotifyFaviconUpdated(icon_url_changed);
 140   web_contents()->NotifyNavigationStateChanged(content::INVALIDATE_TYPE_TAB);
 141 }
 142
 143 void ContentFaviconDriver::DidUpdateFaviconURL(
 144     const std::vector<content::FaviconURL>& candidates) {
 145   DCHECK(!candidates.empty());
 146   favicon_urls_ = candidates;
 147   OnUpdateFaviconURL(FaviconURLsFromContentFaviconURLs(candidates));
 148 }
 149
 150 void ContentFaviconDriver::DidStartNavigationToPendingEntry(
 151     const GURL& url,
 152     content::NavigationController::ReloadType reload_type) {
 153   if (reload_type == content::NavigationController::NO_RELOAD ||
 154       IsOffTheRecord())
 155     return;
 156
 157   bypass_cache_page_url_ = url;
 158   SetFaviconOutOfDateForPage(
 159       url, reload_type == content::NavigationController::RELOAD_IGNORING_CACHE);
 160 }
 161
 162 void ContentFaviconDriver::DidNavigateMainFrame(
 163     const content::LoadCommittedDetails& details,
 164     const content::FrameNavigateParams& params) {
 165   favicon_urls_.clear();
 166
 167   // Wait till the user navigates to a new URL to start checking the cache
 168   // again. The cache may be ignored for non-reload navigations (e.g.
 169   // history.replace() in-page navigation). This is allowed to increase the
 170   // likelihood that "reloading a page ignoring the cache" redownloads the
 171   // favicon. In particular, a page may do an in-page navigation before
 172   // FaviconHandler has the time to determine that the favicon needs to be
 173   // redownloaded.
 174   GURL url = details.entry->GetURL();
 175   if (url != bypass_cache_page_url_)
 176     bypass_cache_page_url_ = GURL();
 177
 178   // Get the favicon, either from history or request it from the net.
 179   FetchFavicon(url);
 180 }
 181
 182 }  // namespace favicon