theme.js
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/*
* Copyright 2014-present 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';
// injected refs
var $log, fs, ps;
// configuration
var themes = ['light', 'dark'],
themeStr = themes.join(' ');
// internal state
var listeners = [],
currentTheme,
thidx;
function init() {
thidx = ps.getPrefs('theme', { idx: 0 }).idx;
updateBodyClass();
}
function getTheme() {
return themes[thidx];
}
function setTheme(t, force) {
var idx = themes.indexOf(t);
if (force || idx > -1 && idx !== thidx) {
thidx = idx;
ps.setPrefs('theme', { idx: thidx });
applyTheme();
}
}
function toggleTheme() {
var i = thidx + 1;
thidx = (i===themes.length) ? 0 : i;
ps.setPrefs('theme', { idx: thidx });
applyTheme('toggle');
return getTheme();
}
function applyTheme(evt) {
thidx = ps.getPrefs('theme', { idx: thidx }).idx;
if (currentTheme != thidx) {
$log.info('Applying theme:', thidx);
updateBodyClass();
themeEvent(evt || 'set');
}
}
function updateBodyClass() {
var body = d3.select('body');
body.classed(themeStr, false);
body.classed(getTheme(), true);
currentTheme = thidx;
}
function themeEvent(w) {
var t = getTheme(),
m = 'Theme-Change-(' + w + '): ' + t;
$log.debug(m);
listeners.forEach(function (lsnr) {
lsnr({event: 'themeChange', value: t});
});
}
function addListener(lsnr) {
listeners.push(lsnr);
}
function removeListener(lsnr) {
listeners = listeners.filter(function(obj) { return obj === lsnr; });
}
angular.module('onosUtil')
.factory('ThemeService', ['$log', 'FnService', 'PrefsService',
function (_$log_, _fs_, _ps_) {
$log = _$log_;
fs = _fs_;
ps = _ps_;
ps.addListener(applyTheme);
return {
init: init,
theme: function (x) {
if (x === undefined) {
return getTheme();
} else {
setTheme(x);
}
},
toggleTheme: toggleTheme,
addListener: addListener,
removeListener: removeListener
};
}]);
}());