Daniel@0: /**
Daniel@0:  * jQuery plugin for basic BEM manipulations.
Daniel@0:  * 
Daniel@0:  * @author Max Shirshin
Daniel@0:  * @version 2.1.3
Daniel@0:  * 
Daniel@0:  */
Daniel@0: (function($, undefined) {
Daniel@0: 
Daniel@0:     var getElemClasses = function(domEl) {
Daniel@0:         if (domEl.classList) {
Daniel@0:             return $.makeArray(domEl.classList);
Daniel@0:         } else {
Daniel@0:             return $.trim(domEl.className).split(/\s+/);
Daniel@0:         }
Daniel@0:     };
Daniel@0: 
Daniel@0:     $.bem = {
Daniel@0:         generateBlock: function(tag, blockName, modifiers) {
Daniel@0:             if (blockName === undefined) {
Daniel@0:                 blockName = tag;
Daniel@0:                 tag = 'div';
Daniel@0:             } else if (Array.isArray(blockName)) {
Daniel@0:                 modifiers = blockName;
Daniel@0:                 blockName = tag;
Daniel@0:                 tag = 'div';
Daniel@0:             }
Daniel@0:             
Daniel@0:             var $block = $('<' + tag + '/>').addClass(blockName);
Daniel@0:             
Daniel@0:             if (Array.isArray(modifiers)) {
Daniel@0:                 for (var i = 0; i < modifiers.length; i++) {
Daniel@0:                     $block.addClass(blockName + '_' + modifiers[i]);
Daniel@0:                 }
Daniel@0:             }
Daniel@0:             return $block;
Daniel@0:         },
Daniel@0:         
Daniel@0:         generateElement: function(tag, blockName, elementName, modifiers) {
Daniel@0:             if (elementName === undefined) {
Daniel@0:                 elementName = blockName;
Daniel@0:                 blockName = tag;
Daniel@0:                 tag = 'div';
Daniel@0:             } else if (Array.isArray(elementName)) {
Daniel@0:                 modifiers = elementName;
Daniel@0:                 elementName = blockName;
Daniel@0:                 blockName = tag;
Daniel@0:                 tag = 'div';
Daniel@0:             }
Daniel@0:             
Daniel@0:             var elementClassName = blockName + '__' + elementName;
Daniel@0:             var $element = $('<' + tag + '/>').addClass(elementClassName);
Daniel@0:             
Daniel@0:             if (Array.isArray(modifiers)) {
Daniel@0:                 for (var i = 0; i < modifiers.length; i++) {
Daniel@0:                     $element.addClass(elementClassName + '_' + modifiers[i]);
Daniel@0:                 }
Daniel@0:             }
Daniel@0:             return $element;
Daniel@0:         }
Daniel@0:     };
Daniel@0:     
Daniel@0:     $.extend($.fn, {
Daniel@0:         getMod: function(block, elem, modName) {
Daniel@0:             if (modName === undefined) {
Daniel@0:                 modName = elem;
Daniel@0:                 elem = undefined;
Daniel@0:             }
Daniel@0:             
Daniel@0:             if (this.length) {
Daniel@0:                 var classPattern = block + (elem !== undefined ? '__' + elem : '') + '_' + modName,
Daniel@0:                     modVal = false;
Daniel@0:                 
Daniel@0:                 $.each(getElemClasses(this.get(0)), function(i, c) {
Daniel@0:                     if (c === classPattern) {
Daniel@0:                         modVal = true;
Daniel@0:                         return false;
Daniel@0:                     } else if (c.indexOf(classPattern) === 0 && c.substr(classPattern.length, 1) === '_') {
Daniel@0:                         modVal = c.substr(classPattern.length + 1);
Daniel@0:                         return false;
Daniel@0:                     }
Daniel@0:                 });
Daniel@0:                 
Daniel@0:                 return modVal;
Daniel@0:                 
Daniel@0:             } else return undefined;
Daniel@0:         },
Daniel@0:         
Daniel@0:         setMod: function(block, elem, modName, modVal) {
Daniel@0:             if (modVal === undefined) {
Daniel@0:                 modVal = modName;
Daniel@0:                 modName = elem;
Daniel@0:                 elem = undefined;
Daniel@0:             }
Daniel@0:             
Daniel@0:             return this.each(function() {
Daniel@0:                 var $this = $(this),
Daniel@0:                     classPattern = block + (elem !== undefined ? '__' + elem : '') + '_' + modName;
Daniel@0:                 
Daniel@0:                 if (modVal === false) {
Daniel@0:                     $.each(getElemClasses(this), function(i, c) {
Daniel@0:                         if (c.indexOf(classPattern) === 0) {
Daniel@0:                             var afterPattern = c.substr(classPattern.length, 1);
Daniel@0:                             if (afterPattern === undefined || afterPattern === '_') {
Daniel@0:                                 $this.removeClass(c);
Daniel@0:                             }
Daniel@0:                         }
Daniel@0:                     });
Daniel@0:                 } else if (modVal === true) {
Daniel@0:                     $this.addClass(classPattern);
Daniel@0:                 } else {
Daniel@0:                     $.each(getElemClasses(this), function(i, c) {
Daniel@0:                         if (c.indexOf(classPattern) === 0 && c.substr(classPattern.length, 1) === '_') {
Daniel@0:                             $this.removeClass(c);
Daniel@0:                         }
Daniel@0:                     });
Daniel@0:                     
Daniel@0:                     $this.addClass(classPattern + '_' + modVal);
Daniel@0:                 }
Daniel@0:             });
Daniel@0:         },
Daniel@0: 
Daniel@0:         hasMod: function(block, elem, modName) {
Daniel@0:             return !! this.getMod(block, elem, modName);
Daniel@0:         }
Daniel@0:     });
Daniel@0:     
Daniel@0: })(jQuery);