mirror of
https://github.com/Jermolene/TiddlyWiki5
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86 lines
2.3 KiB
JavaScript
86 lines
2.3 KiB
JavaScript
/*\
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title: $:/core/modules/utils/logger.js
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type: application/javascript
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module-type: utils
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A basic logging implementation
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var ALERT_TAG = "$:/tags/Alert";
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/*
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Make a new logger
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*/
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function Logger(componentName,options) {
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options = options || {};
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this.componentName = componentName || "";
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this.colour = options.colour || "white";
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this.enable = "enable" in options ? options.enable : true;
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}
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/*
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Log a message
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*/
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Logger.prototype.log = function(/* args */) {
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if(this.enable && console !== undefined && console.log !== undefined) {
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return Function.apply.call(console.log, console, [$tw.utils.terminalColour(this.colour),this.componentName + ":"].concat(Array.prototype.slice.call(arguments,0)).concat($tw.utils.terminalColour()));
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}
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};
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/*
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Alert a message
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*/
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Logger.prototype.alert = function(/* args */) {
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if(this.enable) {
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// Prepare the text of the alert
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var text = Array.prototype.join.call(arguments," ");
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// Create alert tiddlers in the browser
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if($tw.browser) {
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// Check if there is an existing alert with the same text and the same component
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var existingAlerts = $tw.wiki.getTiddlersWithTag(ALERT_TAG),
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alertFields,
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existingCount,
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self = this;
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$tw.utils.each(existingAlerts,function(title) {
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var tiddler = $tw.wiki.getTiddler(title);
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if(tiddler.fields.text === text && tiddler.fields.component === self.componentName && tiddler.fields.modified && (!alertFields || tiddler.fields.modified < alertFields.modified)) {
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alertFields = $tw.utils.extend({},tiddler.fields);
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}
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});
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if(alertFields) {
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existingCount = alertFields.count || 1;
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} else {
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alertFields = {
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title: $tw.wiki.generateNewTitle("$:/temp/alerts/alert",{prefix: ""}),
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text: text,
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tags: [ALERT_TAG],
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component: this.componentName
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};
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existingCount = 0;
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}
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alertFields.modified = new Date();
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if(++existingCount > 1) {
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alertFields.count = existingCount;
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} else {
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alertFields.count = undefined;
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}
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$tw.wiki.addTiddler(new $tw.Tiddler(alertFields));
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// Log the alert as well
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this.log.apply(this,Array.prototype.slice.call(arguments,0));
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} else {
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// Print an orange message to the console if not in the browser
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console.error("\x1b[1;33m" + text + "\x1b[0m");
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}
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}
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};
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exports.Logger = Logger;
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})();
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