Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | /* global Symbol */ import { A } from '@ember/array'; import { buildSelector, assign } from '../../helpers'; import { create } from '../../create'; import { count } from '../count'; import Ceibo from 'ceibo'; export class Collection { constructor(scope, definition, parent, key) { this.scope = scope; this.definition = definition || {}; this.parent = parent; this.key = key; this._itemCounter = create({ count: count(scope, { resetScope: this.definition.resetScope, testContainer: this.definition.testContainer }) }, { parent }); this._items = []; } get length() { return this._itemCounter.count; } objectAt(index) { let { key } = this; if (typeof this._items[index] === 'undefined') { let { scope, definition, parent } = this; let itemScope = buildSelector({}, scope, { at: index }); let finalizedDefinition = assign({}, definition); finalizedDefinition.scope = itemScope; let tree = create(finalizedDefinition, { parent }); // Change the key of the root node Ceibo.meta(tree).key = `${key}[${index}]`; this._items[index] = tree; } return this._items[index]; } filter(...args) { return this.toArray().filter(...args); } filterBy(...args) { return this.toArray().filterBy(...args); } forEach(...args) { return this.toArray().forEach(...args); } map(...args) { return this.toArray().map(...args); } mapBy(...args) { return this.toArray().mapBy(...args); } toArray() { let { length } = this; let array = A(); for (let i = 0; i < length; i++) { array.push(this.objectAt(i)); } return array; } } if (typeof (Symbol) !== 'undefined' && Symbol.iterator) { Collection.prototype[Symbol.iterator] = function() { let i = 0; let items = this.toArray(); let next = () => ({ done: i >= items.length, value: items[i++] }); return { next }; } } function proxyIt(instance) { return new window.Proxy(instance, { get: function(target, name) { if (typeof(name) === 'number' || typeof(name) === 'string') { let index = parseInt(name, 10); if (!isNaN(index)) { return target.objectAt(index); } } return target[name]; } }); } export function collection(scope, definition) { let descriptor = { isDescriptor: true, setup(node, key) { // Set the value on the descriptor so that it will be picked up and applied by Ceibo. // This does mutate the descriptor, but because `setup` is always called before the // value is assigned we are guaranteed to get a new, unique Collection instance each time. descriptor.value = new Collection(scope, definition, node, key); if (window.Proxy) { descriptor.value = proxyIt(descriptor.value); } } }; return descriptor; } |