1 // Copyright (c) 2012 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/ui/search/search_delegate.h" 6 7 #include "chrome/browser/ui/search/search_model.h" 8 #include "chrome/browser/ui/search/search_tab_helper.h" 9 10 SearchDelegate::SearchDelegate(SearchModel* browser_search_model, 11 ToolbarModel* toolbar_model) 12 : browser_model_(browser_search_model), 13 tab_model_() { 14 } 15 16 SearchDelegate::~SearchDelegate() { 17 DCHECK(!tab_model_) << "All tabs should have been deactivated or closed."; 18 } 19 20 void SearchDelegate::ModelChanged(const SearchModel::State& old_state, 21 const SearchModel::State& new_state) { 22 browser_model_->SetState(new_state); 23 } 24 25 void SearchDelegate::OnTabActivated(content::WebContents* web_contents) { 26 if (tab_model_) 27 tab_model_->RemoveObserver(this); 28 tab_model_ = SearchTabHelper::FromWebContents(web_contents)->model(); 29 browser_model_->SetState(tab_model_->state()); 30 tab_model_->AddObserver(this); 31 } 32 33 void SearchDelegate::OnTabDeactivated(content::WebContents* web_contents) { 34 StopObservingTab(web_contents); 35 } 36 37 void SearchDelegate::OnTabDetached(content::WebContents* web_contents) { 38 StopObservingTab(web_contents); 39 } 40 41 void SearchDelegate::StopObservingTab(content::WebContents* web_contents) { 42 SearchTabHelper* search_tab_helper = 43 SearchTabHelper::FromWebContents(web_contents); 44 if (search_tab_helper->model() == tab_model_) { 45 tab_model_->RemoveObserver(this); 46 tab_model_ = NULL; 47 } 48 } 49
