Move browser sniffing into a plugin

plugins/tiddlywiki/browser-sniff/browser.js

@@ -0,0 +1,78 @@
+/*\
+title: $:/plugins/tiddlywiki/browser-sniff/sniff.js
+type: application/javascript
+module-type: info
+
+Initialise $:/info/browser tiddlers
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.getInfoTiddlerFields = function() {
+	var mapBoolean = function(value) {return value ? "yes" : "no"},
+		infoTiddlerFields = [];
+	// Basics
+	if($tw.browser) {
+		// Mappings from tiddler titles (prefixed with "$:/info/browser/") to bowser.browser property name
+		var bowser = require("$:/plugins/tiddlywiki/browser-sniff/bowser/bowser.js"),
+			mappings = [
+				["name","name","unknown"],
+				["version","version"],
+				["is/webkit","webkit"],
+				["is/gecko","gecko"],
+				["is/chrome","chrome"],
+				["is/firefox","firefox"],
+				["is/ios","ios"],
+				["is/iphone","iphone"],
+				["is/ipad","ipad"],
+				["is/ipod","ios"],
+				["is/opera","opera"],
+				["is/phantomjs","phantomjs"],
+				["is/safari","safari"],
+				["is/seamonkey","seamonkey"],
+				["is/blackberry","blackberry"],
+				["is/webos","webos"],
+				["is/silk","silk"],
+				["is/bada","bada"],
+				["is/tizen","tizen"],
+				["is/sailfish","sailfish"],
+				["is/android","android"],
+				["is/windowsphone","windowsphone"],
+				["is/firefoxos","firefoxos"]
+			];
+		$tw.utils.each(mappings,function(mapping) {
+			var value = bowser.browser[mapping[1]];
+			if(value === undefined) {
+				value = mapping[2];
+			}
+			if(value === undefined) {
+				value = false;
+			}
+			if(typeof value === "boolean") {
+				value = mapBoolean(value);
+			}
+			infoTiddlerFields.push({title: "$:/info/browser/" + mapping[0], text: value});
+		});
+		// Set $:/info/browser/name to the platform with some changes from Bowser
+		var platform = bowser.browser.name;
+		if("iPad iPhone iPod".split(" ").indexOf(platform) !== -1) {
+			platform = "iOS";
+		}
+		infoTiddlerFields.push({title: "$:/info/browser/name", text: platform});
+		// Non-bowser settings for TiddlyFox and TiddlyDesktop
+		var hasTiddlyFox = !!document.getElementById("tiddlyfox-message-box"),
+			isTiddlyDesktop = false; // Can't detect it until we update TiddlyDesktop to have a distinct useragent string
+		infoTiddlerFields.push({title: "$:/info/browser/has/tiddlyfox", text: mapBoolean(hasTiddlyFox)});
+		infoTiddlerFields.push({title: "$:/info/browser/is/tiddlydesktop", text: mapBoolean(isTiddlyDesktop)});
+		if(isTiddlyDesktop) {
+			infoTiddlerFields.push({title: "$:/info/browser/name", text: "TiddlyDesktop"});
+		}
+	}
+	return infoTiddlerFields;
+};
+
+})();