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/webui/gesture_config_ui.h" 6 7 #include "base/bind.h" 8 #include "base/prefs/pref_service.h" 9 #include "base/values.h" 10 #include "chrome/browser/browser_process.h" 11 #include "chrome/browser/profiles/profile.h" 12 #include "chrome/common/url_constants.h" 13 #include "content/public/browser/web_ui.h" 14 #include "content/public/browser/web_ui_data_source.h" 15 #include "grit/browser_resources.h" 16 17 /** 18 * WebUI for configuring 'gesture.*' preference values used by 19 * Chrome's gesture recognition system. 20 */ 21 GestureConfigUI::GestureConfigUI(content::WebUI* web_ui) 22 : content::WebUIController(web_ui) { 23 // Set up the chrome://gesture-config source. 24 content::WebUIDataSource* html_source = 25 content::WebUIDataSource::Create(chrome::kChromeUIGestureConfigHost); 26 27 // Register callback handlers. 28 web_ui->RegisterMessageCallback( 29 "updatePreferenceValue", 30 base::Bind(&GestureConfigUI::UpdatePreferenceValue, 31 base::Unretained(this))); 32 web_ui->RegisterMessageCallback( 33 "resetPreferenceValue", 34 base::Bind(&GestureConfigUI::ResetPreferenceValue, 35 base::Unretained(this))); 36 web_ui->RegisterMessageCallback( 37 "setPreferenceValue", 38 base::Bind(&GestureConfigUI::SetPreferenceValue, 39 base::Unretained(this))); 40 41 // Add required resources. 42 html_source->AddResourcePath("gesture_config.css", IDR_GESTURE_CONFIG_CSS); 43 html_source->AddResourcePath("gesture_config.js", IDR_GESTURE_CONFIG_JS); 44 html_source->SetDefaultResource(IDR_GESTURE_CONFIG_HTML); 45 46 Profile* profile = Profile::FromWebUI(web_ui); 47 content::WebUIDataSource::Add(profile, html_source); 48 } 49 50 GestureConfigUI::~GestureConfigUI() { 51 } 52 53 void GestureConfigUI::UpdatePreferenceValue(const base::ListValue* args) { 54 std::string pref_name; 55 56 if (!args->GetString(0, &pref_name)) return; 57 58 PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs(); 59 const PrefService::Preference* pref = 60 prefs->FindPreference(pref_name.c_str()); 61 62 base::StringValue js_pref_name(pref_name); 63 base::FundamentalValue js_pref_value(prefs->GetDouble(pref_name.c_str())); 64 base::FundamentalValue js_pref_default(pref->IsDefaultValue()); 65 66 web_ui()->CallJavascriptFunction( 67 "gesture_config.updatePreferenceValueResult", 68 js_pref_name, 69 js_pref_value, 70 js_pref_default); 71 } 72 73 void GestureConfigUI::ResetPreferenceValue(const base::ListValue* args) { 74 std::string pref_name; 75 76 if (!args->GetString(0, &pref_name)) return; 77 78 PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs(); 79 80 prefs->ClearPref(pref_name.c_str()); 81 UpdatePreferenceValue(args); 82 } 83 84 void GestureConfigUI::SetPreferenceValue(const base::ListValue* args) { 85 std::string pref_name; 86 double value; 87 88 if (!args->GetString(0, &pref_name) || !args->GetDouble(1, &value)) return; 89 90 PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs(); 91 92 const PrefService::Preference* pref = 93 prefs->FindPreference(pref_name.c_str()); 94 switch (pref->GetType()) { 95 case base::Value::TYPE_INTEGER: 96 prefs->SetInteger(pref_name.c_str(), static_cast<int>(value)); 97 break; 98 case base::Value::TYPE_DOUBLE: 99 prefs->SetDouble(pref_name.c_str(), value); 100 break; 101 default: 102 NOTREACHED(); 103 } 104 } 105 106
