-
Notifications
You must be signed in to change notification settings - Fork 0
/
xtal-decor.js
200 lines (200 loc) · 7.21 KB
/
xtal-decor.js
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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
import { CE } from 'trans-render/lib/CE.js';
import { upgrade as upgr, getAttrInfo } from './upgrade.js';
import { getDestructArgs } from 'trans-render/lib/getDestructArgs.js';
import { onRemove } from 'trans-render/lib/onRemove.js';
export const ce = new CE();
export class XtalDecorCore extends HTMLElement {
targetToProxyMap = new WeakMap();
watchForElementsToUpgrade({ upgrade, ifWantsToBe, init, actions, forceVisible }) {
const callback = (target) => {
this.newTarget = target;
};
upgr({
shadowDomPeer: this,
upgrade: upgrade,
ifWantsToBe: ifWantsToBe,
forceVisible,
}, callback);
}
pairTargetWithProxy({ actions, virtualProps, targetToProxyMap, newTarget, ifWantsToBe, noParse, finale }) {
const existingProxy = targetToProxyMap.get(newTarget);
if (existingProxy) {
if (!noParse) {
const attr = getAttrInfo(newTarget, ifWantsToBe, true);
if (attr !== null && attr.length > 0 && attr[0].length > 0) {
Object.assign(existingProxy, JSON.parse(attr[0]));
}
}
return;
}
const virtualPropHolder = {};
const self = this;
const proxy = new Proxy(newTarget, {
set: (target, key, value) => {
if (key === 'self' || (virtualProps !== undefined && virtualProps.includes(key))) {
virtualPropHolder[key] = value;
}
else {
target[key] = value;
}
if (key === 'self')
return true;
actions?.forEach(action => {
const dependencies = getDestructArgs(action);
if (dependencies.includes(key)) {
//TODO: symbols
const arg = Object.assign({}, virtualPropHolder, target, { target });
action(arg, this);
}
});
switch (typeof key) { //TODO: remove this in favor of prop subscribers.
case 'string':
const isVirtualProp = self.virtualProps?.includes(key) === true;
const detail = {
prop: key,
isVirtualProp,
customAttr: ifWantsToBe,
value
};
target.dispatchEvent(new CustomEvent(eventName, {
detail
}));
break;
}
return true;
},
get: (target, key) => {
let value; // = Reflect.get(target, key);
if (key === 'self' || (virtualProps !== undefined && virtualProps.includes(key))) {
value = virtualPropHolder[key];
}
else {
value = target[key]; // = value;
}
if (typeof (value) == "function") {
return value.bind(target);
}
return value;
}
});
targetToProxyMap.set(newTarget, proxy);
self.newTargetProxyPair = {
proxy: proxy,
target: newTarget
};
const id = newTarget.id;
onRemove(newTarget, (removedEl) => {
finale(proxy, removedEl);
});
self.newTarget = undefined;
if (id !== '') {
self.newTargetId = id;
}
}
initializeProxy({ newTargetProxyPair, init, on, capture, ifWantsToBe, noParse }) {
const newProxy = newTargetProxyPair.proxy;
newProxy.self = newProxy;
const newTarget = newTargetProxyPair.target;
if (init !== undefined)
init(newProxy, this, newTarget);
if (!noParse) {
const attr = getAttrInfo(newTarget, ifWantsToBe, true);
if (attr !== null && attr.length > 0 && attr[0].length > 0) {
Object.assign(newProxy, JSON.parse(attr[0]));
}
}
addEvents(on, newTarget, newProxy, false);
addEvents(capture, newTarget, newProxy, true);
this.newTargetProxyPair = undefined;
}
attachForwarder({ newTargetId }) {
const qry = `proxy-decor[for="${newTargetId}"]`;
const newForwarder = this.getRootNode()?.querySelector(qry);
if (newForwarder) {
this.newForwarder = newForwarder;
return;
}
import('css-observe/css-observe.js');
const observer = document.createElement('css-observe');
observer.observe = true;
observer.selector = `proxy-decor[for="${newTargetId}"]`;
observer.addEventListener('latest-match-changed', (e) => {
this.newForwarder = observer.latestMatch;
});
this.appendChild(observer);
}
doAutoForward({ newForwarder, ifWantsToBe }) {
let rn = this.getRootNode();
if (rn.nodeType === 9)
rn = document.body;
const el = rn.querySelector('#' + newForwarder.getAttribute('for'));
if (el === null)
return;
//const anyNewForwarder = newForwarder as any;
const proxyName = ce.toCamel(ifWantsToBe);
//const originalVal = (<any>newForwarder)[propName];
const proxy = this.targetToProxyMap.get(el);
newForwarder.setProxy(proxy, proxyName);
//if(originalVal !== undefined) Object.assign(proxy, originalVal);
//(anyNewForwarder)[propName] = proxy;
newForwarder.dispatchEvent(new Event(`${ifWantsToBe}:initialized`));
}
;
}
function addEvents(on, target, proxy, capture) {
if (on === undefined)
return;
for (var key in on) {
const eventSetting = on[key];
switch (typeof eventSetting) {
case 'function':
target.addEventListener(key, e => {
eventSetting(proxy, e);
}, capture);
break;
default:
//TODO:
throw 'not implemented yet';
}
}
}
ce.def({
config: {
tagName: 'xtal-decor',
propDefaults: {
ifWantsToBe: '',
noParse: false,
forceVisible: false,
upgrade: '',
},
style: {
display: 'none'
},
actions: {
watchForElementsToUpgrade: {
ifAllOf: ['upgrade', 'ifWantsToBe', 'init', 'actions']
},
pairTargetWithProxy: {
ifKeyIn: ['actions', 'virtualProps', 'ifWantsToBe', 'finale'],
ifAllOf: ['newTarget']
},
initializeProxy: {
ifKeyIn: ['init', 'on', 'capture', 'ifWantsToBe'],
ifAllOf: ['newTargetProxyPair']
},
attachForwarder: {
ifAllOf: ['newTargetId']
},
doAutoForward: {
ifAllOf: ['newForwarder', 'ifWantsToBe']
}
}
},
superclass: XtalDecorCore,
});
/**
* @element xtal-decor
* @tag xtal-decor
*/
export const XtalDecor = ce.classDef;
export const eventName = 'yzDz0XScOUWhk/CI+tT4vg';