8b3455518a
Detect migration scenario based on UI script files to have same name and different extensions (.html and .js). Allow for multiple `Gerrit.install()` calls, reusing `plugin` instance for purposes of migration. Cleanup plugin interface between tests. Change-Id: I1a98a2b8660ce4a1700766dc722d587817ede884
96 lines
2.8 KiB
JavaScript
96 lines
2.8 KiB
JavaScript
// Copyright (C) 2017 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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(function() {
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'use strict';
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Polymer({
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is: 'gr-plugin-host',
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properties: {
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config: {
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type: Object,
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observer: '_configChanged',
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},
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},
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behaviors: [
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Gerrit.BaseUrlBehavior,
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],
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_configChanged(config) {
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const plugins = config.plugin;
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const htmlPlugins = plugins.html_resource_paths || [];
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const jsPlugins = this._handleMigrations(plugins.js_resource_paths || [],
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htmlPlugins);
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const defaultTheme = config.default_theme;
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if (defaultTheme) {
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// Make theme first to be first to load.
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htmlPlugins.unshift(defaultTheme);
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}
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Gerrit._setPluginsCount(jsPlugins.length + htmlPlugins.length);
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this._loadJsPlugins(jsPlugins);
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this._importHtmlPlugins(htmlPlugins);
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},
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/**
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* Omit .js plugins that have .html counterparts.
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* For example, if plugin provides foo.js and foo.html, skip foo.js.
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*/
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_handleMigrations(jsPlugins, htmlPlugins) {
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return jsPlugins.filter(url => {
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const counterpart = url.replace(/\.js$/, '.html');
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return !htmlPlugins.includes(counterpart);
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});
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},
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/**
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* @suppress {checkTypes}
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* States that it expects no more than 3 parameters, but that's not true.
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* @todo (beckysiegel) check Polymer annotations and submit change.
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*/
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_importHtmlPlugins(plugins) {
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for (const url of plugins) {
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// onload (second param) needs to be a function. When null or undefined
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// were passed, plugins were not loaded correctly.
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this.importHref(
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this._urlFor(url), () => {}, Gerrit._pluginInstalled, true);
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}
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},
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_loadJsPlugins(plugins) {
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for (const url of plugins) {
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this._createScriptTag(this._urlFor(url));
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}
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},
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_createScriptTag(url) {
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const el = document.createElement('script');
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el.defer = true;
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el.src = url;
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el.onerror = Gerrit._pluginInstalled;
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return document.body.appendChild(el);
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},
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_urlFor(pathOrUrl) {
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if (pathOrUrl.startsWith('http')) {
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return pathOrUrl;
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}
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if (!pathOrUrl.startsWith('/')) {
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pathOrUrl = '/' + pathOrUrl;
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}
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return this.getBaseUrl() + pathOrUrl;
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},
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});
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})();
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