394 lines
9.7 KiB
JavaScript
394 lines
9.7 KiB
JavaScript
/*
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Author William Mantly Jr <wmantly@gmail.com>
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https://github.com/wmantly/jq-repeat
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MIT license
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*/
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(function($, Mustache){
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'use strict';
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var scope = {};
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$.scope = new Proxy(scope, {
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get(obj, prop){
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if(!obj[prop]){
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scope[prop] = [];
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}
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return Reflect.get(...arguments);
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},
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set(obj, prop, value) {
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return Reflect.set(...arguments);
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},
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});
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var make = function(element, template){
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var result = [];
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result.splice = function(inputValue, ...args){
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//splice does all the heavy lifting by interacting with the DOM elements.
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var toProto = [...args]
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var index;
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//if a string is submitted as the index, try to match it to index number
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if(typeof arguments[0] === 'string'){
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index = this.indexOf( arguments[0] );//set where to start
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if (index === -1) {
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return [];
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}
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}else{
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index = arguments[0]; //set where to start
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}
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toProto.unshift(index)
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var howMany = arguments[1]; //sets the amount of fields to remove
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var args = Array.prototype.slice.call( arguments ); // coverts arguments into array
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var toAdd = args.slice(2); // only keeps fields to add to array
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// if the starting point is higher then the total index count, start at the end
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if( index > this.length ) {
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index = this.length;
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}
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// if the starting point is negative, start form the end of the array, minus the start point
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if( index < 0 ) {
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index = this.length - Math.abs( index );
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}
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// if there are things to add, figure out the how many new indexes we need
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if( !howMany && howMany !== 0 ) {
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howMany = this.length - index;
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}
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//not sure why i put this here... but it does matter!
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if( howMany > this.length - index ) {
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howMany = this.length - index;
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}
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//figure out how many positions we need to shift the current elements
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var shift = toAdd.length - howMany;
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// figure out how big the new array will be
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// var newLength = this.length + shift;
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//removes fields from array based on howMany needs to be removed
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for( var i = index; i < +index+howMany; i++ ) {
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this.__take(this[index].__jq_$el, this[index], this);
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// this.__take.apply( $( '.jq-repeat-'+ this.__jqRepeatId +'[jq-repeat-index="'+ ( i + index ) +'"]' ) );
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}
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//re-factor element index's
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for(var i = 0; i < this.length; i++){
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if( i >= index){
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this[i].__jq_$el.attr( 'jq-repeat-index', i+shift );
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}
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}
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//if there are fields to add to the array, add them
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if( toAdd.length > 0 ){
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//$.each( toAdd, function( key, value ){
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for(var I = 0; I < toAdd.length; I++){
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//figure out new elements index
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var key = I + index;
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// apply values to template
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var render = Mustache.render(this.__jqTemplate, this.__buildData(i, toAdd[I]));
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//set call name and index keys to DOM element
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var $render = $( render ).addClass( 'jq-repeat-'+ this.__jqRepeatId ).attr( 'jq-repeat-index', key );
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//if add new elements in proper stop, or after the place holder.
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if( key === 0 ){
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this.$this.after( $render );
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}else{
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$( '.jq-repeat-'+ this.__jqRepeatId +'[jq-repeat-index="' + ( key -1 ) + '"]' ).after( $render );
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}
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Object.defineProperty( toAdd[I], "__jq_$el", {
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value: $render,
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writable: true,
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enumerable: false,
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configurable: true
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} );
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//animate element
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this.__put($render, toAdd[I], this);
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}
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}
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//set and return new array
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return Array.prototype.splice.apply(this, toProto);
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};
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result.push = function(){
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//add one or more objects to the array
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//set the index value, if none is set make it zero
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var index = this.length || 0;
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//loop each passed object and pass it to slice
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for (var i = 0 ; i < arguments.length; ++i) {
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this.splice( ( index + i ), 0, arguments[i] );
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}
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//return new array length
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return this.length;
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};
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result.pop = function(){
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//remove and return array element
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return this.splice( -1, 1 )[0];
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};
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result.reverse = function() {
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let hold = [];
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for(let item of this){
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hold.push(item.__jq_$el.html())
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}
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for(let idx in hold.reverse()){
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this[idx].__jq_$el.html(hold[idx]);
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}
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Array.prototype.reverse.apply( this );
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return this;
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};
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result.remove = function(key, value){
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let index = this.indexOf(key, value)
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if(index === -1) return;
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this.splice(index, 1)
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}
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result.shift = function() {
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return this.splice( 0, 1 )[0];
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};
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result.unshift = function(data){
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return this.splice(0,0, data)
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}
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result.loop = function(){
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var temp = this[0];
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this.splice( 0,1 );
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this.push( temp );
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return temp;
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};
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result.loopUp = function(){
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var temp = this[this.length-1];
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this.splice( -1, 1 );
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this.splice( 0, 0, temp );
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return temp;
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};
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result.indexOf = function( key, value ){
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if(typeof key === 'number') return key;
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if( typeof value !== 'string' ){
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value = arguments[0];
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key = this.__index;
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}
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for ( var index = 0; index < this.length; ++index ) {
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if( this[index][key] === value ){
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return index;
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}
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}
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return -1;
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};
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result.update = function(key, value, data){
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//set variables using sting for index
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// If update is called with no index/key, assume its the 0
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if(typeof key === 'object'){
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if(this[0]){
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return this.update(0, key);
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}
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return this.splice(0, 1, key);
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}
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if(typeof value !== 'string'){
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data = arguments[1];
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if(typeof key !== 'number'){
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value = arguments[0];
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key = this.__index;
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}
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}
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var index = this.indexOf( key, value );
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if(index === -1) {
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return [];
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}
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this[index] = $.extend( true, this[index], data );
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var $render = $(Mustache.render(this.__jqTemplate, this.__buildData(index, this[index])));
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$render.attr('jq-repeat-index', index);
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this.__update(this[index].__jq_$el, $render, this[index], this);
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this[index].__jq_$el = $render;
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};
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result.getByKey = function(key, value){
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return this[this.indexOf(key, value)];
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}
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// User definable helper methods
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result.__put = function($el, item, list){
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$el.show();
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};
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result.__take = function($el, item, list){
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$el.remove();
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};
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result.__update = function($el, $render, item, list){
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$el.replaceWith($render);
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$el.show();
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};
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result.__parseData = function(data){
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return data;
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}
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// internal helper methods
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result.__buildData = function(index, data){
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return {
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...this.__parseData(data),
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nestedTemplates: this.__parseNestedTemplates(index, data),
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_parent: this.__jqParent ? $.scope[this.__jqParent][this.__jqParentIndex] : undefined,
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};
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};
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result.__parseNestedTemplates = function(index, data){
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let templates = []
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let tempData = {
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...data,
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_parent: data,
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};
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for(let idx in this.nestedTemplates){
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let $el = $(`${this.nestedTemplates[idx]}`);
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$el.attr('jq-repeat', Mustache.render($el.attr('jq-repeat'), tempData));
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$el.attr('jq-repeat-index', Mustache.render($el.attr('jq-repeat-index'), tempData));
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$el.attr('jq-repeat-parent', this.__jqRepeatId);
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$el.attr('jq-repeat-parent-index', index);
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templates[idx] = $el[0].outerHTML;
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}
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return templates;
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}
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for(let prop of ['put', 'take', 'update', 'parseData']){
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Object.defineProperty(result, prop, {
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enumerable: false,
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get(){
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return this[`__${prop}`]
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},
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set(value) {
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this[`__${prop}`] = value;
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},
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});
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}
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var $this = $(element);
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result.nestedTemplates = [];
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result.__jqRepeatId = $this.attr( 'jq-repeat' );
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$this.removeAttr('jq-repeat');
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result.__index = $this.attr('jq-repeat-index');
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if($this.attr('jq-repeat-parent')){
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result.__jqParent = $this.attr('jq-repeat-parent');
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result.__jqParentIndex = $this.attr('jq-repeat-parent-index');
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}
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$this.find('[jq-repeat]').each((idx, el)=>{
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let templateIdx = result.nestedTemplates.length;
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let template = `${el.outerHTML}`;
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result.nestedTemplates.push(template);
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$(el).replaceWith(`{{{ nestedTemplates.${templateIdx} }}}`);
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});
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result.__jqTemplate = $this[0].outerHTML;
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$this.replaceWith( '<script type="x-tmpl-mustache" id="jq-repeat-holder-' + result.__jqRepeatId + '"><\/script>' );
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result.$this = $('#jq-repeat-holder-' + result.__jqRepeatId);
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Mustache.parse(result.__jqTemplate); // optional, speeds up future uses
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for(let key in result){
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Object.defineProperty(result, key, {
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value: result[key],
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writable: true,
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enumerable: false,
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configurable: true
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});
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}
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var temp = $.scope[result.__jqRepeatId] || [];
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$.scope[result.__jqRepeatId] = result;
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for(let prop of Object.keys(temp)){
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if(prop,Number.isInteger(Number(prop))){
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$.scope[result.__jqRepeatId].push(temp[prop]);
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}else{
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$.scope[result.__jqRepeatId][prop] = temp[prop];
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}
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}
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};
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$( document ).ready( function(){
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// Create an instance of MutationObserver and pass the callback function
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const observer = new MutationObserver(function(mutationsList) {
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mutationsList.forEach(mutation => {
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if (mutation.type === 'childList') {
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const addedNodes = mutation.addedNodes;
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addedNodes.forEach(node => {
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if (node.nodeType === Node.ELEMENT_NODE) {
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const $el = $(node);
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if ($el.is('[jq-repeat]')) {
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make(node);
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} else {
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const toMake = [];
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$el.find('[jq-repeat]').each((key, el) => {
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if ($(el).parent().closest('[jq-repeat]').length) return;
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toMake.push(el);
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});
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toMake.forEach(el => {
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make(el);
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});
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}
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}
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});
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}
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});
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});
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// Start observing the document
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observer.observe(document.body, { childList: true, subtree: true });
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let toMake = [];
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$( '[jq-repeat]' ).each(function(key, value){
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if($(value).parent().closest('[jq-repeat]').length) return;
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toMake.push(value);
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});
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for(let el of toMake){
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make(el);
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}
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} );
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})(jQuery, Mustache);
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