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cp/codepress/engines/msie.js  view on Meta::CPAN

	initialize : function() {
		if(typeof(editor)=='undefined' && !arguments[0]) return;
		chars = '|32|46|62|'; // charcodes that trigger syntax highlighting
		cc = '\u2009'; // carret char
		editor = document.getElementsByTagName('pre')[0];
		editor.contentEditable = 'true';
		document.getElementsByTagName('body')[0].onfocus = function() {editor.focus();}
		document.attachEvent('onkeydown', this.metaHandler);
		document.attachEvent('onkeypress', this.keyHandler);
		window.attachEvent('onscroll', function() { if(!CodePress.scrolling) setTimeout(function(){CodePress.syntaxHighlight('scroll')},1)});
		completeChars = this.getCompleteChars();
		completeEndingChars =  this.getCompleteEndingChars();
		setTimeout(function() { window.scroll(0,0) },50); // scroll IE to top
	},
	
	// treat key bindings
	keyHandler : function(evt) {
		charCode = evt.keyCode;
		fromChar = String.fromCharCode(charCode);
		
		if( (completeEndingChars.indexOf('|'+fromChar+'|')!= -1 || completeChars.indexOf('|'+fromChar+'|')!=-1  )&& CodePress.autocomplete) { // auto complete
			if(!CodePress.completeEnding(fromChar))
			     CodePress.complete(fromChar);
		}
	    else if(chars.indexOf('|'+charCode+'|')!=-1||charCode==13) { // syntax highlighting
		 	CodePress.syntaxHighlight('generic');
		}
	},

	metaHandler : function(evt) {
		keyCode = evt.keyCode;
		
		if(keyCode==9 || evt.tabKey) { 
			CodePress.snippets();
		}
		else if((keyCode==122||keyCode==121||keyCode==90) && evt.ctrlKey) { // undo and redo
			(keyCode==121||evt.shiftKey) ? CodePress.actions.redo() :  CodePress.actions.undo(); 
			evt.returnValue = false;
		}
		else if(keyCode==34||keyCode==33) { // handle page up/down for IE
			self.scrollBy(0, (keyCode==34) ? 200 : -200); 
			evt.returnValue = false;
		}
		else if(keyCode==46||keyCode==8) { // save to history when delete or backspace pressed
		 	CodePress.actions.history[CodePress.actions.next()] = editor.innerHTML;
		}
		else if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && keyCode!=90)  { // shortcuts = ctrl||appleKey+shift+key!=z(undo) 
			CodePress.shortcuts(keyCode);
			evt.returnValue = false;
		}
		else if(keyCode==86 && evt.ctrlKey)  { // handle paste
			window.clipboardData.setData('Text',window.clipboardData.getData('Text').replace(/\t/g,'\u2008'));
		 	top.setTimeout(function(){CodePress.syntaxHighlight('paste');},10);
		}
		else if(keyCode==67 && evt.ctrlKey)  { // handle cut
			// window.clipboardData.setData('Text',x[0]);
			// code = window.clipboardData.getData('Text');
		}
	},

	// put cursor back to its original position after every parsing
	
	
	findString : function() {
		range = self.document.body.createTextRange();
		if(range.findText(cc)){
			range.select();
			range.text = '';
		}
	},
	
	// split big files, highlighting parts of it
	split : function(code,flag) {
		if(flag=='scroll') {
			this.scrolling = true;
			return code;
		}
		else {
			this.scrolling = false;
			mid = code.indexOf(cc);
			if(mid-2000<0) {ini=0;end=4000;}
			else if(mid+2000>code.length) {ini=code.length-4000;end=code.length;}
			else {ini=mid-2000;end=mid+2000;}
			code = code.substring(ini,end);
			return code.substring(code.indexOf('<P>'),code.lastIndexOf('</P>')+4);
		}
	},
	
	// syntax highlighting parser
	syntaxHighlight : function(flag) {
		if(flag!='init') document.selection.createRange().text = cc;
		o = editor.innerHTML;
		if(flag=='paste') { // fix pasted text
			o = o.replace(/<BR>/g,'\r\n'); 
			o = o.replace(/\u2008/g,'\t');
		}
		o = o.replace(/<P>/g,'\n');
		o = o.replace(/<\/P>/g,'\r');
		o = o.replace(/<.*?>/g,'');
		o = o.replace(/&nbsp;/g,'');			
		o = '<PRE><P>'+o+'</P></PRE>';
		o = o.replace(/\n\r/g,'<P></P>');
		o = o.replace(/\n/g,'<P>');
		o = o.replace(/\r/g,'<\/P>');
		o = o.replace(/<P>(<P>)+/,'<P>');
		o = o.replace(/<\/P>(<\/P>)+/,'</P>');
		o = o.replace(/<P><\/P>/g,'<P><BR/></P>');
		x = z = this.split(o,flag);

		if(arguments[1]&&arguments[2]) x = x.replace(arguments[1],arguments[2]);
	
		for(i=0;i<Language.syntax.length;i++) 
			x = x.replace(Language.syntax[i].input,Language.syntax[i].output);
			
		editor.innerHTML = this.actions.history[this.actions.next()] = (flag=='scroll') ? x : o.replace(z,x);
		if(flag!='init') this.findString();
	},

	snippets : function(evt) {
		var snippets = Language.snippets;
		var trigger = this.getLastWord();