| /* |
| * Copyright 2014,2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| ONOS GUI -- Util -- Theme Service |
| */ |
| (function () { |
| 'use strict'; |
| |
| var $log, fs; |
| |
| var themes = ['light', 'dark'], |
| themeStr = themes.join(' '), |
| thidx, |
| listeners = {}, |
| nextListenerId = 1; |
| |
| function init() { |
| thidx = 0; |
| updateBodyClass(); |
| } |
| |
| function getTheme() { |
| return themes[thidx]; |
| } |
| |
| function setTheme(t) { |
| var idx = themes.indexOf(t); |
| if (idx > -1 && idx !== thidx) { |
| thidx = idx; |
| updateBodyClass(); |
| themeEvent('set'); |
| } |
| } |
| |
| function toggleTheme() { |
| var i = thidx + 1; |
| thidx = (i===themes.length) ? 0 : i; |
| updateBodyClass(); |
| themeEvent('toggle'); |
| return getTheme(); |
| } |
| |
| function updateBodyClass() { |
| var body = d3.select('body'); |
| body.classed(themeStr, false); |
| body.classed(getTheme(), true); |
| } |
| |
| function themeEvent(w) { |
| var t = getTheme(), |
| m = 'Theme-Change-('+w+'): ' + t; |
| $log.debug(m); |
| angular.forEach(listeners, function(value) { |
| value.cb( |
| { |
| event: 'themeChange', |
| value: t |
| } |
| ); |
| }); |
| } |
| |
| function addListener(callback) { |
| var id = nextListenerId++, |
| cb = fs.isF(callback), |
| o = { id: id, cb: cb }; |
| |
| if (cb) { |
| listeners[id] = o; |
| } else { |
| $log.error('ThemeService.addListener(): callback not a function'); |
| o.error = 'No callback defined'; |
| } |
| return o; |
| } |
| |
| function removeListener(lsnr) { |
| var id = lsnr && lsnr.id, |
| o = listeners[id]; |
| if (o) { |
| delete listeners[id]; |
| } |
| } |
| |
| angular.module('onosUtil') |
| .factory('ThemeService', ['$log', 'FnService', |
| function (_$log_, _fs_) { |
| $log = _$log_; |
| fs = _fs_; |
| thidx = 0; |
| |
| return { |
| init: init, |
| theme: function (x) { |
| if (x === undefined) { |
| return getTheme(); |
| } else { |
| setTheme(x); |
| } |
| }, |
| toggleTheme: toggleTheme, |
| addListener: addListener, |
| removeListener: removeListener |
| }; |
| }]); |
| |
| }()); |