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
|
/**
* @license
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function() {
'use strict';
const INIT_PROPERTIES_TIMEOUT_MS = 10000;
Polymer({
is: 'gr-endpoint-decorator',
properties: {
name: String,
/** @type {!Map} */
_domHooks: {
type: Map,
value() { return new Map(); },
},
/**
* This map prevents importing the same endpoint twice.
* Without caching, if a plugin is loaded after the loaded plugins
* callback fires, it will be imported twice and appear twice on the page.
* @type {!Map}
*/
_initializedPlugins: {
type: Map,
value() { return new Map(); },
},
},
detached() {
for (const [el, domHook] of this._domHooks) {
domHook.handleInstanceDetached(el);
}
},
_import(url) {
return new Promise((resolve, reject) => {
this.importHref(url, resolve, reject);
});
},
_initDecoration(name, plugin) {
const el = document.createElement(name);
return this._initProperties(el, plugin,
this.getContentChildren().find(
el => el.nodeName !== 'GR-ENDPOINT-PARAM'))
.then(el => this._appendChild(el));
},
_initReplacement(name, plugin) {
this.getContentChildNodes()
.filter(node => node.nodeName !== 'GR-ENDPOINT-PARAM')
.forEach(node => node.remove());
const el = document.createElement(name);
return this._initProperties(el, plugin).then(
el => this._appendChild(el));
},
_getEndpointParams() {
return Polymer.dom(this).querySelectorAll('gr-endpoint-param');
},
/**
* @param {!Element} el
* @param {!Object} plugin
* @param {!Element=} opt_content
* @return {!Promise<Element>}
*/
_initProperties(el, plugin, opt_content) {
el.plugin = plugin;
if (opt_content) {
el.content = opt_content;
}
const expectProperties = this._getEndpointParams().map(paramEl => {
const helper = plugin.attributeHelper(paramEl);
const paramName = paramEl.getAttribute('name');
return helper.get('value').then(
value => helper.bind('value',
value => plugin.attributeHelper(el).set(paramName, value))
);
});
let timeoutId;
const timeout = new Promise(
resolve => timeoutId = setTimeout(() => {
console.warn(
'Timeout waiting for endpoint properties initialization: ' +
`plugin ${plugin.getPluginName()}, endpoint ${this.name}`);
}, INIT_PROPERTIES_TIMEOUT_MS));
return Promise.race([timeout, Promise.all(expectProperties)])
.then(() => {
clearTimeout(timeoutId);
return el;
});
},
_appendChild(el) {
return Polymer.dom(this.root).appendChild(el);
},
_initModule({moduleName, plugin, type, domHook}) {
if (this._initializedPlugins.get(plugin.getPluginName())) {
return;
}
let initPromise;
switch (type) {
case 'decorate':
initPromise = this._initDecoration(moduleName, plugin);
break;
case 'replace':
initPromise = this._initReplacement(moduleName, plugin);
break;
}
if (!initPromise) {
console.warn('Unable to initialize module' +
`${moduleName} from ${plugin.getPluginName()}`);
}
this._initializedPlugins.set(plugin.getPluginName(), true);
initPromise.then(el => {
domHook.handleInstanceAttached(el);
this._domHooks.set(el, domHook);
});
},
ready() {
Gerrit._endpoints.onNewEndpoint(this.name, this._initModule.bind(this));
Gerrit.awaitPluginsLoaded().then(() => Promise.all(
Gerrit._endpoints.getPlugins(this.name).map(
pluginUrl => this._import(pluginUrl)))
).then(() =>
Gerrit._endpoints
.getDetails(this.name)
.forEach(this._initModule, this)
);
},
});
})();
|
