1a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 2a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 3a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// found in the LICENSE file. 4a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 5a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/ui/search/instant_search_prerenderer.h" 6a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 7a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/autocomplete/autocomplete_match.h" 8a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/prerender/prerender_handle.h" 9a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/prerender/prerender_manager.h" 10a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/prerender/prerender_manager_factory.h" 11a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/profiles/profile.h" 12d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles)#include "chrome/browser/search/instant_service.h" 13d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles)#include "chrome/browser/search/instant_service_factory.h" 14a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/search/search.h" 15a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/ui/browser_navigator.h" 16a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "chrome/browser/ui/search/search_tab_helper.h" 17a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 18a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)namespace { 19a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 20a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// Returns true if the underlying page supports Instant search. 21a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)bool PageSupportsInstantSearch(content::WebContents* contents) { 22a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // Search results page supports Instant search. 23a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return SearchTabHelper::FromWebContents(contents)->IsSearchResultsPage(); 24a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 25a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 26a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} // namespace 27a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 28a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)InstantSearchPrerenderer::InstantSearchPrerenderer(Profile* profile, 29a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const GURL& url) 30a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) : profile_(profile), 31a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_url_(url) { 32a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 33a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 34a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)InstantSearchPrerenderer::~InstantSearchPrerenderer() { 35a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (prerender_handle_) 36a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_->OnCancel(); 37a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 38a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 39d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles)// static 40d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles)InstantSearchPrerenderer* InstantSearchPrerenderer::GetForProfile( 41d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) Profile* profile) { 42d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) DCHECK(profile); 43d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) InstantService* instant_service = 44d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) InstantServiceFactory::GetForProfile(profile); 45d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) return instant_service ? instant_service->instant_search_prerenderer() : NULL; 46d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles)} 47d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) 48a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)void InstantSearchPrerenderer::Init( 49a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const content::SessionStorageNamespaceMap& session_storage_namespace_map, 50a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const gfx::Size& size) { 51a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // TODO(kmadhusu): Enable Instant for Incognito profile. 52a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (profile_->IsOffTheRecord()) 53a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 54a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 55a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // Only cancel the old prerender after starting the new one, so if the URLs 56a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // are the same, the underlying prerender will be reused. 57a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) scoped_ptr<prerender::PrerenderHandle> old_prerender_handle( 58a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_.release()); 59a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender::PrerenderManager* prerender_manager = 60a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender::PrerenderManagerFactory::GetForProfile(profile_); 61a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (prerender_manager) { 62a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) content::SessionStorageNamespace* session_storage_namespace = NULL; 63a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) content::SessionStorageNamespaceMap::const_iterator it = 64a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) session_storage_namespace_map.find(std::string()); 65a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (it != session_storage_namespace_map.end()) 66a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) session_storage_namespace = it->second.get(); 67a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 68a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_.reset(prerender_manager->AddPrerenderForInstant( 69a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_url_, session_storage_namespace, size)); 70a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) } 71a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (old_prerender_handle) 72a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) old_prerender_handle->OnCancel(); 73a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 74a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 75a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)void InstantSearchPrerenderer::Cancel() { 76a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (!prerender_handle_) 77a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 78a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 79a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) last_instant_suggestion_ = InstantSuggestion(); 80a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_->OnCancel(); 81a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_.reset(); 82a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 83a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 84a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)void InstantSearchPrerenderer::Prerender(const InstantSuggestion& suggestion) { 85a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (!prerender_handle_) 86a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 87a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 88a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (last_instant_suggestion_.text == suggestion.text) 89a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 90a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 91a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (last_instant_suggestion_.text.empty() && 92a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) !prerender_handle_->IsFinishedLoading()) 93a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 94a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 95a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (!prerender_contents()) 96a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return; 97a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 98a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) last_instant_suggestion_ = suggestion; 99a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) SearchTabHelper::FromWebContents(prerender_contents())-> 100a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) SetSuggestionToPrefetch(suggestion); 101a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 102a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 103a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)void InstantSearchPrerenderer::Commit(const string16& query) { 104a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) DCHECK(prerender_handle_); 105a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) DCHECK(prerender_contents()); 106a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) SearchTabHelper::FromWebContents(prerender_contents())->Submit(query); 107a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 108a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 109a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)bool InstantSearchPrerenderer::CanCommitQuery(content::WebContents* source, 110a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const string16& query) const { 111a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (!source || query.empty()) 112a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return false; 113a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 114a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (last_instant_suggestion_.text != query) 115a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return false; 116a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 117a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (!prerender_handle_ || !prerender_contents()) 118a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return false; 119a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 120a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // InstantSearchPrerenderer can commit query to the prerendered page only if 121a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // the underlying |source| page doesn't support Instant search. 122a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return !PageSupportsInstantSearch(source); 123a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 124a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 125a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)bool InstantSearchPrerenderer::UsePrerenderedPage( 126a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const GURL& url, 127a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) chrome::NavigateParams* params) { 128a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) string16 search_terms = chrome::GetSearchTermsFromURL(profile_, url); 129a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender::PrerenderManager* prerender_manager = 130a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender::PrerenderManagerFactory::GetForProfile(profile_); 131a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (search_terms.empty() || 132a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) !params->target_contents || 133a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) last_instant_suggestion_.text != search_terms || 134a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) !prerender_contents() || 135a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) !prerender_manager) { 136a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) Cancel(); 137a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return false; 138a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) } 139a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 140a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) bool success = prerender_manager->MaybeUsePrerenderedPage( 141a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_contents()->GetURL(), params); 142a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_.reset(); 143a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return success; 144a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 145a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 146a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)bool InstantSearchPrerenderer::IsAllowed(const AutocompleteMatch& match, 147a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) content::WebContents* source) const { 148d57369da7c6519fef57db42085f7b42d4c8845c1Torne (Richard Coles) return source && AutocompleteMatch::IsSearchType(match.type) && 149a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) !PageSupportsInstantSearch(source); 150a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 151a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 152a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)content::WebContents* InstantSearchPrerenderer::prerender_contents() const { 153a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return (prerender_handle_ && prerender_handle_->contents()) ? 154a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) prerender_handle_->contents()->prerender_contents() : NULL; 155a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 156