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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-buffer',
properties: {
/**
* List of displayed logs.
* @type {?Array<{{
* text: string,
* time: string,
* file: string,
* line: number,
* severity: number,
* }}>} LogMessage
*/
logs: {
type: Array,
value: [],
notify: true,
}
},
/**
* Called when an instance is initialized.
*/
ready: function() {
// We assume that only one instance of log-buffer is ever created.
LogBufferInterface = this;
chrome.send('getLogMessages');
},
// Clears the native LogBuffer.
clearLogs: function() {
chrome.send('clearLogBuffer');
},
// Handles when a new log message is added.
onLogMessageAdded: function(log) {
this.push('logs', log);
},
// Handles when the logs are cleared.
onLogBufferCleared: function() {
this.logs = [];
},
// Handles when the logs are returned in response to the 'getLogMessages'
// request.
onGotLogMessages: function(logs) {
this.logs = logs;
}
});
// Interface with the native WebUI component for LogBuffer events. The functions
// contained in this object will be invoked by the browser for each operation
// performed on the native LogBuffer.
LogBufferInterface = {
/**
* Called when a new log message is added.
* @type {function(LogMessage)}
*/
onLogMessageAdded: function(log) {},
/**
* Called when the log buffer is cleared.
* @type {function()}
*/
onLogBufferCleared: function() {},
/**
* Called in response to chrome.send('getLogMessages') with the log messages
* currently in the buffer.
* @type {function(Array<LogMessage>)}
*/
onGotLogMessages: function(messages) {},
};
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