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// Copyright 2006 The Closure Library Authors. All Rights Reserved.
//
// 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.
/**
* @fileoverview Simple logger that logs a Div Element.
*
*/
goog.provide('goog.debug.DivConsole');
goog.require('goog.debug.HtmlFormatter');
goog.require('goog.debug.LogManager');
goog.require('goog.style');
/**
* A class for visualising logger calls in a div element.
* @param {Element} element The element to append to.
* @constructor
*/
goog.debug.DivConsole = function(element) {
this.publishHandler_ = goog.bind(this.addLogRecord, this);
this.formatter_ = new goog.debug.HtmlFormatter();
this.formatter_.showAbsoluteTime = false;
this.isCapturing_ = false;
this.element_ = element;
this.elementOwnerDocument_ =
this.element_.ownerDocument || this.element_.document;
this.installStyles();
};
/**
* Installs styles for the log messages and its div
*/
goog.debug.DivConsole.prototype.installStyles = function() {
goog.style.installStyles(
'.dbg-sev{color:#F00}' +
'.dbg-w{color:#C40}' +
'.dbg-sh{font-weight:bold;color:#000}' +
'.dbg-i{color:#444}' +
'.dbg-f{color:#999}' +
'.dbg-ev{color:#0A0}' +
'.dbg-m{color:#990}' +
'.logmsg{border-bottom:1px solid #CCC;padding:2px}' +
'.logsep{background-color: #8C8;}' +
'.logdiv{border:1px solid #CCC;background-color:#FCFCFC;' +
'font:medium monospace}',
this.element_);
this.element_.className += ' logdiv';
};
/**
* Sets whether we are currently capturing logger output.
* @param {boolean} capturing Whether to capture logger output.
*/
goog.debug.DivConsole.prototype.setCapturing = function(capturing) {
if (capturing == this.isCapturing_) {
return;
}
// attach or detach handler from the root logger
var rootLogger = goog.debug.LogManager.getRoot();
if (capturing) {
rootLogger.addHandler(this.publishHandler_);
} else {
rootLogger.removeHandler(this.publishHandler_);
this.logBuffer = '';
}
this.isCapturing_ = capturing;
};
/**
* Adds a log record.
* @param {goog.debug.LogRecord} logRecord The log entry.
*/
goog.debug.DivConsole.prototype.addLogRecord = function(logRecord) {
var scroll = this.element_.scrollHeight - this.element_.scrollTop -
this.element_.clientHeight <= 100;
var div = this.elementOwnerDocument_.createElement('div');
div.className = 'logmsg';
div.innerHTML = this.formatter_.formatRecord(logRecord);
this.element_.appendChild(div);
if (scroll) {
this.element_.scrollTop = this.element_.scrollHeight;
}
};
/**
* Gets the formatter for outputting to the console. The default formatter
* is an instance of goog.debug.HtmlFormatter
* @return {goog.debug.Formatter} The formatter in use.
*/
goog.debug.DivConsole.prototype.getFormatter = function() {
return this.formatter_;
};
/**
* Sets the formatter for outputting to the console.
* @param {goog.debug.Formatter} formatter The formatter to use.
*/
goog.debug.DivConsole.prototype.setFormatter = function(formatter) {
this.formatter_ = formatter;
};
/**
* Adds a separator to the debug window.
*/
goog.debug.DivConsole.prototype.addSeparator = function() {
var div = this.elementOwnerDocument_.createElement('div');
div.className = 'logmsg logsep';
this.element_.appendChild(div);
};
/**
* Clears the console.
*/
goog.debug.DivConsole.prototype.clear = function() {
this.element_.innerHTML = '';
};
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