SmartLexicon

var smartLex = {

	lookUpWord : function()
	{
		//var focusedWindow = document.commandDispatcher.focusedWindow;
		//var SelectionText = focusedWindow.__proto__.getSelection.call(focusedWindow);
		//SelectionText = SelectionText.toString();    

		var SelectionText;
		
		// Returns the selected text as a string.
		// Copied from dict extension (http://dict.mozdev.org/)
		{
			var node = document.popupNode;

			var selection;

			var nodeLocalName = node.localName.toUpperCase();

			if ((nodeLocalName == "TEXTAREA") ||
				(nodeLocalName == "INPUT" && node.type == "text")) {

				// The selection is either in a TEXTAREA of an INPUT HTML node.
				// This includes the text area of Mozilla Mail.
				selection = node.value.substring(
					node.selectionStart, 
					node.selectionEnd);
			}
			else {
				var focusedWindow = document.commandDispatcher.focusedWindow;

				try {
					// Get the selection page using XPCNativeWrapper
					// I can't use the more elegant "contentWindow.getSelection()",
					// because that only works in Firefox >= 1.0.2. 
					var winWrapper = new XPCNativeWrapper(
						focusedWindow,
						'document',
						'getSelection()');

					selection = winWrapper.getSelection();
				}
				catch (ex) {
					// XPCNativeWrapper doesn't exist.
					// This must be an old version of Firefox/Thunderbird/Mozilla
					// Use the less secure "__proto__" method.
					selection = focusedWindow.__proto__.getSelection.call(focusedWindow);
				}
			}

			var selectedWord = selection.toString();

			// Sanitize the selection by removing leading an trailing non-word characters.
			// NOTE: We cannot use \W because that matches many Unicode word characters.
			// Instead, we explicitly spell out the range of non-word ASCII-7 characters.
			selectedWord = selectedWord.replace(/^[\x00-\x2F\x3A-\x40\x5B-\x60\x7B-\x7F]+/, ''); // remove leading non-alnums
			selectedWord = selectedWord.replace(/[\x00-\x2F\x3A-\x40\x5B-\x60\x7B-\x7F]+$/, ''); // remove trailing non-alnums
			selectedWord = selectedWord.replace(/\s+/, ' '); // conflate whitespace runs

			SelectionText = selectedWord;
		}

		var params = "";
		for(var i = 0; i < SelectionText.length; i++)
		{
			params += SelectionText.charCodeAt(i)
			if (i < SelectionText.length - 1)
				params += "-";
		}
		//params = document.actualEncoding + " " + params;
		//params = document.characterSet + " " + params;

		util = new objUtil();
		util.execCommand("C:\\Program Files\\SmartLexicon\\SmLexClient.exe", 
						 params);
	},
	
	init : function()
	{
		var cACM = document.getElementById("contentAreaContextMenu");
		
		cACM.addEventListener("popupshowing",
							   smartLex.initMenu,
							   false);
	},
	
	initMenu : function()
	{
		var cm = gContextMenu;
		document.getElementById("smartlex-lookupword").hidden = !cm.isTextSelected;
	}
	
}

function objUtil()
{
	this.error = function(msg) { alert("Error: " + msg);	}
	
	this.execCommand = function(command,strArgs) {
		// separate command arguments
		var args = new Array();
		var quoted = false;
		var double_quoted = false;
		var param = "";
		for (var i = 0; i < strArgs.length; i++) { 
			var charArgs = strArgs.substring(i,i + 1);
			if ( charArgs == "\""  && !quoted ) { double_quoted =! double_quoted; }
			else if ( charArgs == "\'" && !double_quoted ) { quoted =! quoted; } 
			else if ( /\s/.test(charArgs) && !quoted && !double_quoted ) {
				if (param != "") args.push( param );
			param = "";
			} else param += charArgs;	
		}
		if (param != "") args.push( param );
		// create a file object for the external program
		try {
			var applicFile = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
			var applic = Components.classes["@mozilla.org/process/util;1"].createInstance(Components.interfaces.nsIProcess);
			applicFile.initWithPath(command);
			if (! applicFile.exists()) {
				this.error("Executable '" + command + "' does not exist.");
			} else {
				applic.init(applicFile);
				applic.run(false, args, args.length);
			}
		} catch (e) {
			this.error("Cannot run executable: " + e);
			return false;
		}
	}
}