chrome/browser/android/offline_pages/offline_page_web_contents_observer.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 "chrome/browser/android/offline_pages/offline_page_web_contents_observer.h"
   6
   7 #include "content/public/browser/navigation_details.h"
   8 #include "content/public/browser/render_frame_host.h"
   9 #include "content/public/browser/web_contents.h"
  10 #include "content/public/browser/web_contents_observer.h"
  11 #include "content/public/browser/web_contents_user_data.h"
  12
  13 DEFINE_WEB_CONTENTS_USER_DATA_KEY(
  14     offline_pages::OfflinePageWebContentsObserver);
  15
  16 namespace offline_pages {
  17
  18 OfflinePageWebContentsObserver::OfflinePageWebContentsObserver(
  19     content::WebContents* web_contents)
  20     : content::WebContentsObserver(web_contents),
  21       is_document_loaded_in_main_frame_(false) {
  22 }
  23
  24 OfflinePageWebContentsObserver::~OfflinePageWebContentsObserver() {
  25 }
  26
  27 void OfflinePageWebContentsObserver::DocumentLoadedInFrame(
  28     content::RenderFrameHost* render_frame_host) {
  29   if (!render_frame_host->GetParent()) {
  30     is_document_loaded_in_main_frame_ = true;
  31     if (!main_frame_document_loaded_callback_.is_null())
  32       main_frame_document_loaded_callback_.Run();
  33   }
  34 }
  35
  36 void OfflinePageWebContentsObserver::DidNavigateMainFrame(
  37     const content::LoadCommittedDetails& details,
  38     const content::FrameNavigateParams& params) {
  39   if (details.is_navigation_to_different_page())
  40     is_document_loaded_in_main_frame_ = false;
  41 }
  42
  43 void OfflinePageWebContentsObserver::RenderProcessGone(
  44     base::TerminationStatus status) {
  45   CleanUp();
  46 }
  47
  48 void OfflinePageWebContentsObserver::CleanUp() {
  49   content::WebContentsObserver::Observe(nullptr);
  50 }
  51
  52 }  // namespace offline_pages