blob: 407ef0f376051483ec4a1db354cf0876d03bad9a [file] [log] [blame]
/**
* @license
* Copyright (C) 2018 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';
/**
* Fired when a comment is saved or deleted
*
* @event thread-list-modified
*/
Polymer({
is: 'gr-thread-list',
_legacyUndefinedCheck: true,
properties: {
/** @type {?} */
change: Object,
threads: Array,
changeNum: String,
loggedIn: Boolean,
_sortedThreads: {
type: Array,
},
_filteredThreads: {
type: Array,
computed: '_computeFilteredThreads(_sortedThreads, _unresolvedOnly, ' +
'_draftsOnly)',
},
_unresolvedOnly: {
type: Boolean,
value: false,
},
_draftsOnly: {
type: Boolean,
value: false,
},
},
observers: ['_computeSortedThreads(threads.*)'],
_computeShowDraftToggle(loggedIn) {
return loggedIn ? 'show' : '';
},
/**
* Order as follows:
* - Unresolved threads with drafts (reverse chronological)
* - Unresolved threads without drafts (reverse chronological)
* - Resolved threads with drafts (reverse chronological)
* - Resolved threads without drafts (reverse chronological)
* @param {!Object} changeRecord
*/
_computeSortedThreads(changeRecord) {
const threads = changeRecord.base;
if (!threads) { return []; }
this._updateSortedThreads(threads);
},
_updateSortedThreads(threads) {
this._sortedThreads =
threads.map(this._getThreadWithSortInfo).sort((c1, c2) => {
const c1Date = c1.__date || util.parseDate(c1.updated);
const c2Date = c2.__date || util.parseDate(c2.updated);
const dateCompare = c2Date - c1Date;
if (c2.unresolved || c1.unresolved) {
if (!c1.unresolved) { return 1; }
if (!c2.unresolved) { return -1; }
}
if (c2.hasDraft || c1.hasDraft) {
if (!c1.hasDraft) { return 1; }
if (!c2.hasDraft) { return -1; }
}
if (dateCompare === 0 && (!c1.id || !c1.id.localeCompare)) {
return 0;
}
return dateCompare ? dateCompare : c1.id.localeCompare(c2.id);
});
},
_computeFilteredThreads(sortedThreads, unresolvedOnly, draftsOnly) {
// Polymer 2: check for undefined
if ([
sortedThreads,
unresolvedOnly,
draftsOnly,
].some(arg => arg === undefined)) {
return undefined;
}
return sortedThreads.filter(c => {
if (draftsOnly) {
return c.hasDraft;
} else if (unresolvedOnly) {
return c.unresolved;
} else {
return c;
}
}).map(threadInfo => threadInfo.thread);
},
_getThreadWithSortInfo(thread) {
const lastComment = thread.comments[thread.comments.length - 1] || {};
const lastNonDraftComment =
(lastComment.__draft && thread.comments.length > 1) ?
thread.comments[thread.comments.length - 2] :
lastComment;
return {
thread,
// Use the unresolved bit for the last non draft comment. This is what
// anybody other than the current user would see.
unresolved: !!lastNonDraftComment.unresolved,
hasDraft: !!lastComment.__draft,
updated: lastComment.updated,
};
},
removeThread(rootId) {
for (let i = 0; i < this.threads.length; i++) {
if (this.threads[i].rootId === rootId) {
this.splice('threads', i, 1);
// Needed to ensure threads get re-rendered in the correct order.
Polymer.dom.flush();
return;
}
}
},
_handleThreadDiscard(e) {
this.removeThread(e.detail.rootId);
},
_handleCommentsChanged(e) {
// Reset threads so thread computations occur on deep array changes to
// threads comments that are not observed naturally.
this._updateSortedThreads(this.threads);
this.dispatchEvent(new CustomEvent('thread-list-modified',
{detail: {rootId: e.detail.rootId, path: e.detail.path}}));
},
_isOnParent(side) {
return !!side;
},
});
})();