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/* ****************************** Semantic Module: Checkbox Author: Jack Lukic Notes: First Commit March 25, 2013
Simple plug-in which maintains the state for ui checkbox This can be done without javascript, only in instances where each checkbox is assigned a unique ID. This provides a separate programmatic option when that is not possible.
****************************** */
;(function ( $, window, document, undefined ) {
$.fn.checkbox = function(parameters) { var $allModules = $(this), settings = $.extend(true, {}, $.fn.checkbox.settings, parameters),
eventNamespace = '.' + settings.namespace, moduleNamespace = 'module-' + settings.namespace,
selector = $allModules.selector || '', time = new Date().getTime(), performance = [],
query = arguments[0], methodInvoked = (typeof query == 'string'), queryArguments = [].slice.call(arguments, 1), invokedResponse ;
$allModules .each(function() { var $module = $(this), $input = $(this).find(settings.selector.input),
selector = $module.selector || '', element = this, instance = $module.data('module-' + settings.namespace), className = settings.className, namespace = settings.namespace, errors = settings.errors, module ;
module = {
initialize: function() { if(settings.context && selector !== '') { module.verbose('Initializing checkbox with delegated events', $module); $(element, settings.context) .on(selector, 'click' + eventNamespace, module.toggle) .data(moduleNamespace, module) ; } else { module.verbose('Initializing checkbox with bound events', $module); $module .on('click' + eventNamespace, module.toggle) .data(moduleNamespace, module) ; } },
destroy: function() { module.verbose('Destroying previous module for', $module); $module .off(namespace) ; },
enable: function() { module.debug('Enabling checkbox'); $module .addClass(className.active) ; $input .prop('checked', true) ; $.proxy(settings.onChange, $input.get())(); $.proxy(settings.onEnable, $input.get())(); },
disable: function() { module.debug('Disabling checkbox'); $module .removeClass(className.active) ; $input .prop('checked', false) ; $.proxy(settings.onChange, $input.get())(); $.proxy(settings.onDisable, $input.get())(); },
toggle: function() { if( $input.prop('checked') === undefined || !$input.prop('checked') ) { module.enable(); } else { module.disable(); } },
setting: function(name, value) { if(value !== undefined) { if( $.isPlainObject(name) ) { $.extend(true, settings, name); } else { settings[name] = value; } } else { return settings[name]; } }, internal: function(name, value) { if(value !== undefined) { if( $.isPlainObject(name) ) { $.extend(true, module, name); } else { module[name] = value; } } else { return module[name]; } }, debug: function() { if(settings.debug) { module.performance.log(arguments[0]); module.verbose = Function.prototype.bind.call(console.info, console, settings.moduleName + ':'); } }, verbose: function() { if(settings.verbose && settings.debug) { module.performance.log(arguments[0]); module.verbose = Function.prototype.bind.call(console.info, console, settings.moduleName + ':'); } }, error: function() { if(console.log !== undefined) { module.error = Function.prototype.bind.call(console.log, console, settings.moduleName + ':'); } }, performance: { log: function(message) { var currentTime, executionTime, previousTime ; if(settings.performance) { currentTime = new Date().getTime(); previousTime = time || currentTime, executionTime = currentTime - previousTime; time = currentTime; performance.push({ 'Element' : element, 'Name' : message, 'Execution Time' : executionTime }); clearTimeout(module.performance.timer); module.performance.timer = setTimeout(module.performance.display, 100); } }, display: function() { var title = settings.moduleName, caption = settings.moduleName + ': ' + selector + '(' + $allModules.size() + ' elements)', totalExecutionTime = 0 ; if(selector) { title += 'Performance (' + selector + ')'; } if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) { console.groupCollapsed(title); if(console.table) { $.each(performance, function(index, data) { totalExecutionTime += data['Execution Time']; }); console.table(performance); } else { $.each(performance, function(index, data) { totalExecutionTime += data['Execution Time']; }); } console.log('Total Execution Time:', totalExecutionTime +'ms'); console.groupEnd(); performance = []; time = false; } } }, invoke: function(query, passedArguments, context) { var maxDepth, found ; passedArguments = passedArguments || queryArguments; context = element || context; if(typeof query == 'string' && instance !== undefined) { query = query.split('.'); maxDepth = query.length - 1; $.each(query, function(depth, value) { if( $.isPlainObject( instance[value] ) && (depth != maxDepth) ) { instance = instance[value]; return true; } else if( instance[value] !== undefined ) { found = instance[value]; return true; } module.error(errors.method); return false; }); } if ( $.isFunction( found ) ) { module.verbose('Executing invoked function', found); return found.apply(context, passedArguments); } return found || false; } };
if(methodInvoked) { if(instance === undefined) { module.initialize(); } invokedResponse = module.invoke(query); } else { if(instance !== undefined) { module.destroy(); } module.initialize(); } }) ; return (invokedResponse) ? invokedResponse : this ; };
$.fn.checkbox.settings = {
moduleName : 'Checkbox Module', namespace : 'checkbox',
verbose : true, debug : true, performance : true, // delegated event context
context : false,
onChange : function(){}, onEnable : function(){}, onDisable : function(){}, errors : { method : 'The method you called is not defined.' },
selector : { input : 'input' },
className : { active : 'active' }
};
})( jQuery, window , document );
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