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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | 29x 29x 29x 4696x 4696x 4696x 4696x 4696x 4696x 2021x 2021x 2021x 2021x 2021x 2021x 6717x 6717x 6717x 6717x 353x 353x 1098x 3076x 3076x 1891x 1891x 271x 271x 271x 2103x 82x 82x 82x | import { ClassPropertyObserver } from './classPropertyObserver';
import { Cache } from '../../utils/exported';
import { IBindingContext } from '../../interface/exported';
// helper class (its faster this way)
const emptyObject = class {
// nothing
};
/*
* creates a observer for property on class/object
* classRef.__observer[this.keyBlock]
*
*/
export class ClassPropertyObserverCreator {
// private static curClass: any;
private static classRef: any;
private static keyParts: any;
private static keyNo: any;
private static keyBlock: any;
/**
* create
*
*/
public static create(_class: IBindingContext, observerKey: string, caller: any) {
this.classRef = _class && _class.$context;
this.keyParts = Cache.keyMaps.getCreate(observerKey);
this.keyNo = 0;
this.keyBlock = this.keyParts[this.keyNo];
ClassPropertyObserverCreator.processKeys(caller);
ClassPropertyObserverCreator.clear();
}
/**
* remove observer
*
*/
public static remove(_class: IBindingContext, observerKey: string, caller: any) {
this.classRef = _class && _class.$context;
this.keyParts = Cache.keyMaps.getCreate(observerKey);
this.keyNo = 0;
this.keyBlock = this.keyParts && this.keyParts[this.keyNo];
ClassPropertyObserverCreator.removeKeys(caller);
ClassPropertyObserverCreator.clear();
}
/**
* clear internal
*
*/
private static clear() {
this.classRef = null;
this.keyParts = null;
this.keyNo = null;
this.keyBlock = null;
}
/**
* set next key
*
*/
private static nextKey() {
this.keyNo++;
this.keyBlock = this.keyParts[this.keyNo];
}
/**
* process key
*
*/
private static processKeys(caller: any) {
// add "__obeserver" prop if it does not exist
if (!this.classRef.__observer) {
Object.defineProperty(this.classRef, '__observer', {
writable: true,
configurable: true,
value: new emptyObject()
});
}
// create observer
if (!this.classRef.__observer[this.keyBlock]) {
this.classRef.__observer[this.keyBlock] = new ClassPropertyObserver(this.classRef, this.keyBlock);
this.classRef.__observer[this.keyBlock].subscribe(caller);
} else {
this.classRef.__observer[this.keyBlock].subscribe(caller);
this.classRef.__observer[this.keyBlock].observe();
}
// if not next
if (this.keyNo !== this.keyParts.length - 1 && this.keyParts.length > 1) {
if (this.classRef) {
this.classRef = this.classRef[this.keyBlock];
}
this.nextKey();
if (this.classRef) {
this.processKeys(caller);
}
}
}
/**
* remove key
*
*/
private static removeKeys(caller: any) {
// unsubscribe
if (this.classRef && this.classRef.__observer) {
if (this.classRef.__observer[this.keyBlock]) {
this.classRef.__observer[this.keyBlock].unsubscribe(caller);
}
}
// if not next
if (this.keyNo !== this.keyParts.length - 1 && this.keyParts.length > 1) {
if (this.classRef) {
this.classRef = this.classRef[this.keyBlock];
}
this.nextKey();
if (this.classRef) {
this.removeKeys(caller);
}
}
}
}
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