2760ef171c
Also documents the router abstraction setup function. Change-Id: Ibe42a12384c10f75938a6701805e403649d09332
105 lines
3.4 KiB
JavaScript
105 lines
3.4 KiB
JavaScript
/**
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* @license
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* Copyright (C) 2016 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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*/
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(function() {
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'use strict';
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Polymer({
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is: 'gr-linked-text',
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properties: {
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removeZeroWidthSpace: Boolean,
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content: {
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type: String,
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observer: '_contentChanged',
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},
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pre: {
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type: Boolean,
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value: false,
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reflectToAttribute: true,
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},
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disabled: {
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type: Boolean,
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value: false,
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reflectToAttribute: true,
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},
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config: Object,
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},
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observers: [
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'_contentOrConfigChanged(content, config)',
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],
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_contentChanged(content) {
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// In the case where the config may not be set (perhaps due to the
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// request for it still being in flight), set the content anyway to
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// prevent waiting on the config to display the text.
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if (this.config != null) { return; }
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this.$.output.textContent = content;
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},
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/**
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* Because either the source text or the linkification config has changed,
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* the content should be re-parsed.
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* @param {string|null|undefined} content The raw, un-linkified source
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* string to parse.
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* @param {Object|null|undefined} config The server config specifying
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* commentLink patterns
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*/
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_contentOrConfigChanged(content, config) {
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config = Gerrit.Nav.mapCommentlinks(config);
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const output = Polymer.dom(this.$.output);
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output.textContent = '';
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const parser = new GrLinkTextParser(config,
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this._handleParseResult.bind(this), this.removeZeroWidthSpace);
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parser.parse(content);
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// Ensure that links originating from HTML commentlink configs open in a
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// new tab. @see Issue 5567
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output.querySelectorAll('a').forEach(anchor => {
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anchor.setAttribute('target', '_blank');
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anchor.setAttribute('rel', 'noopener');
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});
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},
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/**
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* This method is called when the GrLikTextParser emits a partial result
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* (used as the "callback" parameter). It will be called in either of two
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* ways:
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* - To create a link: when called with `text` and `href` arguments, a link
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* element should be created and attached to the resulting DOM.
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* - To attach an arbitrary fragment: when called with only the `fragment`
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* argument, the fragment should be attached to the resulting DOM as is.
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* @param {string|null} text
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* @param {string|null} href
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* @param {DocumentFragment|undefined} fragment
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*/
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_handleParseResult(text, href, fragment) {
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const output = Polymer.dom(this.$.output);
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if (href) {
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const a = document.createElement('a');
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a.href = href;
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a.textContent = text;
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a.target = '_blank';
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a.rel = 'noopener';
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output.appendChild(a);
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} else if (fragment) {
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output.appendChild(fragment);
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}
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},
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});
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})();
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