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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
Polymer({
is: 'log-panel',
properties: {
/**
* List of displayed logs.
* @type {Array<{{
* text: string,
* date: string,
* source: string
* }}>}
*/
logs: Array,
},
observers: [
'logsChanged_(logs.*)',
],
/**
* @type {boolean}
* @private
*/
isScrollAtBottom_: true,
/**
* Called after the Polymer element is initialized.
*/
ready: function() {
this.$.list.onscroll = this.onScroll_.bind(this);
this.async(this.scrollToBottom_);
},
/**
* Called when the list of logs change.
*/
logsChanged_: function() {
if (this.isScrollAtBottom_)
this.async(this.scrollToBottom_);
},
/**
* Clears the logs.
* @private
*/
clearLogs_: function() {
this.$.logBuffer.clearLogs();
},
/**
* Event handler when the list is scrolled.
* @private
*/
onScroll_: function() {
var list = this.$.list;
this.isScrollAtBottom_ =
list.scrollTop + list.offsetHeight == list.scrollHeight;
},
/**
* Scrolls the logs container to the bottom.
* @private
*/
scrollToBottom_: function() {
this.$.list.scrollTop = this.$.list.scrollHeight;
},
/**
* @param {LogMessage} log
* @return {string} The filename stripped of its preceeding path concatenated
* with the line number of the log.
* @private
*/
computeFileAndLine_: function(log) {
var directories = log.file.split('/');
return directories[directories.length - 1] + ':' + log.line;
},
});
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