/*! * iCheck v1.0.1, http://git.io/arlzeA * ================================= * Powerful jQuery and Zepto plugin for checkboxes and radio buttons customization * * (c) 2013 Damir Sultanov, http://fronteed.com * MIT Licensed */ (function($) { // Cached vars var _iCheck = 'iCheck', _iCheckHelper = _iCheck + '-helper', _checkbox = 'checkbox', _radio = 'radio', _checked = 'checked', _unchecked = 'un' + _checked, _disabled = 'disabled', _determinate = 'determinate', _indeterminate = 'in' + _determinate, _update = 'update', _type = 'type', _click = 'click', _touch = 'touchbegin.i touchend.i', _add = 'addClass', _remove = 'removeClass', _callback = 'trigger', _label = 'label', _cursor = 'cursor', _mobile = /ipad|iphone|ipod|android|blackberry|windows phone|opera mini|silk/i.test(navigator.userAgent); // Plugin init $.fn[_iCheck] = function(options, fire) { // Walker var handle = 'input[type="' + _checkbox + '"], input[type="' + _radio + '"]', stack = $(), walker = function(object) { object.each(function() { var self = $(this); if (self.is(handle)) { stack = stack.add(self); } else { stack = stack.add(self.find(handle)); } }); }; // Check if we should operate with some method if (/^(check|uncheck|toggle|indeterminate|determinate|disable|enable|update|destroy)$/i.test(options)) { // Normalize method's name options = options.toLowerCase(); // Find checkboxes and radio buttons walker(this); return stack.each(function() { var self = $(this); if (options == 'destroy') { tidy(self, 'ifDestroyed'); } else { operate(self, true, options); } // Fire method's callback if ($.isFunction(fire)) { fire(); } }); // Customization } else if (typeof options == 'object' || !options) { // Check if any options were passed var settings = $.extend({ checkedClass: _checked, disabledClass: _disabled, indeterminateClass: _indeterminate, labelHover: true, aria: false }, options), selector = settings.handle, hoverClass = settings.hoverClass || 'hover', focusClass = settings.focusClass || 'focus', activeClass = settings.activeClass || 'active', labelHover = !!settings.labelHover, labelHoverClass = settings.labelHoverClass || 'hover', // Setup clickable area area = ('' + settings.increaseArea).replace('%', '') | 0; // Selector limit if (selector == _checkbox || selector == _radio) { handle = 'input[type="' + selector + '"]'; } // Clickable area limit if (area < -50) { area = -50; } // Walk around the selector walker(this); return stack.each(function() { var self = $(this); // If already customized tidy(self); var node = this, id = node.id, // Layer styles offset = -area + '%', size = 100 + (area * 2) + '%', layer = { position: 'absolute', top: offset, left: offset, display: 'block', width: size, height: size, margin: 0, padding: 0, background: '#fff', border: 0, opacity: 0 }, // Choose how to hide input hide = _mobile ? { position: 'absolute', visibility: 'hidden' } : area ? layer : { position: 'absolute', opacity: 0 }, // Get proper class className = node[_type] == _checkbox ? settings.checkboxClass || 'i' + _checkbox : settings.radioClass || 'i' + _radio, // Find assigned labels label = $(_label + '[for="' + id + '"]').add(self.closest(_label)), // Check ARIA option aria = !!settings.aria, // Set ARIA placeholder ariaID = _iCheck + '-' + Math.random().toString(36).replace('0.', ''), // Parent & helper parent = '<div class="' + className + '" ' + (aria ? 'role="' + node[_type] + '" ' : ''), helper; // Set ARIA "labelledby" if (label.length && aria) { label.each(function() { parent += 'aria-labelledby="'; if (this.id) { parent += this.id; } else { this.id = ariaID; parent += ariaID; } parent += '"'; }); } // Wrap input parent = self.wrap(parent + '/>')[_callback]('ifCreated').parent().append(settings.insert); // Layer addition helper = $('<ins class="' + _iCheckHelper + '"/>').css(layer).appendTo(parent); // Finalize customization self.data(_iCheck, {o: settings, s: self.attr('style')}).css(hide); !!settings.inheritClass && parent[_add](node.className || ''); !!settings.inheritID && id && parent.attr('id', _iCheck + '-' + id); parent.css('position') == 'static' && parent.css('position', 'relative'); operate(self, true, _update); // Label events if (label.length) { label.on(_click + '.i mouseover.i mouseout.i ' + _touch, function(event) { var type = event[_type], item = $(this); // Do nothing if input is disabled if (!node[_disabled]) { // Click if (type == _click) { if ($(event.target).is('a')) { return; } operate(self, false, true); // Hover state } else if (labelHover) { // mouseout|touchend if (/ut|nd/.test(type)) { parent[_remove](hoverClass); item[_remove](labelHoverClass); } else { parent[_add](hoverClass); item[_add](labelHoverClass); } } if (_mobile) { event.stopPropagation(); } else { return false; } } }); } // Input events self.on(_click + '.i focus.i blur.i keyup.i keydown.i keypress.i', function(event) { var type = event[_type], key = event.keyCode; // Click if (type == _click) { return false; // Keydown } else if (type == 'keydown' && key == 32) { if (!(node[_type] == _radio && node[_checked])) { if (node[_checked]) { off(self, _checked); } else { on(self, _checked); } } return false; // Keyup } else if (type == 'keyup' && node[_type] == _radio) { !node[_checked] && on(self, _checked); // Focus/blur } else if (/us|ur/.test(type)) { parent[type == 'blur' ? _remove : _add](focusClass); } }); // Helper events helper.on(_click + ' mousedown mouseup mouseover mouseout ' + _touch, function(event) { var type = event[_type], // mousedown|mouseup toggle = /wn|up/.test(type) ? activeClass : hoverClass; // Do nothing if input is disabled if (!node[_disabled]) { // Click if (type == _click) { operate(self, false, true); // Active and hover states } else { // State is on if (/wn|er|in/.test(type)) { // mousedown|mouseover|touchbegin parent[_add](toggle); // State is off } else { parent[_remove](toggle + ' ' + activeClass); } // Label hover if (label.length && labelHover && toggle == hoverClass) { // mouseout|touchend label[/ut|nd/.test(type) ? _remove : _add](labelHoverClass); } } if (_mobile) { event.stopPropagation(); } else { return false; } } }); }); } else { return this; } }; // Do something with inputs function operate(input, direct, method) { var node = input[0], state = /er/.test(method) ? _indeterminate : /bl/.test(method) ? _disabled : _checked, active = method == _update ? { checked: node[_checked], disabled: node[_disabled], indeterminate: input.attr(_indeterminate) == 'true' || input.attr(_determinate) == 'false' } : node[state]; // Check, disable or indeterminate if (/^(ch|di|in)/.test(method) && !active) { on(input, state); // Uncheck, enable or determinate } else if (/^(un|en|de)/.test(method) && active) { off(input, state); // Update } else if (method == _update) { // Handle states for (var state in active) { if (active[state]) { on(input, state, true); } else { off(input, state, true); } } } else if (!direct || method == 'toggle') { // Helper or label was clicked if (!direct) { input[_callback]('ifClicked'); } // Toggle checked state if (active) { if (node[_type] !== _radio) { off(input, state); } } else { on(input, state); } } } // Add checked, disabled or indeterminate state function on(input, state, keep) { var node = input[0], parent = input.parent(), checked = state == _checked, indeterminate = state == _indeterminate, disabled = state == _disabled, callback = indeterminate ? _determinate : checked ? _unchecked : 'enabled', regular = option(input, callback + capitalize(node[_type])), specific = option(input, state + capitalize(node[_type])); // Prevent unnecessary actions if (node[state] !== true) { // Toggle assigned radio buttons if (!keep && state == _checked && node[_type] == _radio && node.name) { var form = input.closest('form'), inputs = 'input[name="' + node.name + '"]'; inputs = form.length ? form.find(inputs) : $(inputs); inputs.each(function() { if (this !== node && $(this).data(_iCheck)) { off($(this), state); } }); } // Indeterminate state if (indeterminate) { // Add indeterminate state node[state] = true; // Remove checked state if (node[_checked]) { off(input, _checked, 'force'); } // Checked or disabled state } else { // Add checked or disabled state if (!keep) { node[state] = true; } // Remove indeterminate state if (checked && node[_indeterminate]) { off(input, _indeterminate, false); } } // Trigger callbacks callbacks(input, checked, state, keep); } // Add proper cursor if (node[_disabled] && !!option(input, _cursor, true)) { parent.find('.' + _iCheckHelper).css(_cursor, 'default'); } // Add state class parent[_add](specific || option(input, state) || ''); // Set ARIA attribute disabled ? parent.attr('aria-disabled', 'true') : parent.attr('aria-checked', indeterminate ? 'mixed' : 'true'); // Remove regular state class parent[_remove](regular || option(input, callback) || ''); } // Remove checked, disabled or indeterminate state function off(input, state, keep) { var node = input[0], parent = input.parent(), checked = state == _checked, indeterminate = state == _indeterminate, disabled = state == _disabled, callback = indeterminate ? _determinate : checked ? _unchecked : 'enabled', regular = option(input, callback + capitalize(node[_type])), specific = option(input, state + capitalize(node[_type])); // Prevent unnecessary actions if (node[state] !== false) { // Toggle state if (indeterminate || !keep || keep == 'force') { node[state] = false; } // Trigger callbacks callbacks(input, checked, callback, keep); } // Add proper cursor if (!node[_disabled] && !!option(input, _cursor, true)) { parent.find('.' + _iCheckHelper).css(_cursor, 'pointer'); } // Remove state class parent[_remove](specific || option(input, state) || ''); // Set ARIA attribute disabled ? parent.attr('aria-disabled', 'false') : parent.attr('aria-checked', 'false'); // Add regular state class parent[_add](regular || option(input, callback) || ''); } // Remove all traces function tidy(input, callback) { if (input.data(_iCheck)) { // Remove everything except input input.parent().html(input.attr('style', input.data(_iCheck).s || '')); // Callback if (callback) { input[_callback](callback); } // Unbind events input.off('.i').unwrap(); $(_label + '[for="' + input[0].id + '"]').add(input.closest(_label)).off('.i'); } } // Get some option function option(input, state, regular) { if (input.data(_iCheck)) { return input.data(_iCheck).o[state + (regular ? '' : 'Class')]; } } // Capitalize some string function capitalize(string) { return string.charAt(0).toUpperCase() + string.slice(1); } // Executable handlers function callbacks(input, checked, callback, keep) { if (!keep) { if (checked) { input[_callback]('ifToggled'); } input[_callback]('ifChanged')[_callback]('if' + capitalize(callback)); } } })(window.jQuery || window.Zepto);