// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults
function clearDefault(el) {
    if (el.defaultValue==el.value) el.value = ""
    if (el.style) el.style.cssText = ""
}

function resetDefault(el) {
    if (el.value=="") {
        el.style.cssText = "color: #ccc;";
        el.value = el.defaultValue;
    }
}

function updateLimitedTextArea( id, maxlength ) {
	counter = $(id + '_counter');
	chars = $(id).value.length;
	counter.innerHTML = chars + '/' + maxlength;
	if (chars > maxlength) {
		counter.className = 'limited_text_area_counter_alert';
	} else {
		counter.className = '';
	}
}

function redirectToPath( path ) {
	if (path.length) {
		window.location = path
	}
}

function redirectToId( prefix, id) {
	redirectToPath( prefix + '/' + id );
}


// add this to the onchange function of the textfield
function checkIfText( checkbox_id, textfield_id ) {
	t = $(textfield_id);
	c = $(checkbox_id);
	if (t.value.length > 0) {
		c.checked = true;
	} else {
		c.checked = false;
	}
}

function createSortable(id, draghandle, only) {
	config = {	tag: 'div',
				constraint: 'vertical',
				handle: draghandle,
				onUpdate: 	function() { updateSortable(id); }
	}
	if (draghandle) {
		config['draghandle'] = draghandle;
	}
	if (only) {
		config['only'] = only;
	}
	Sortable.create(id, config);
}

function destroySortable(id) {
	Sortable.destroy(id);
}

function updateSortable(id) {
	$contents = $(id).immediateDescendants();
	for (var i = 0; i < $contents.length; i++) {
		$arrPos = $contents[i].getElementsByClassName('sortable_position');
		if ($arrPos.length > 0) {
			$arrPos[0].value = i;
		}
	}
	return(true);
}

function fadeAndDestroy(id) {
	Effect.Fade(id, {afterFinish: function() { $(id).remove(); } });
}

function toggleSidebarItem(sender) {
	if ( sender.checked == true ) {
		sender.parentNode.className = 'sidebar_item active';
	} else {
		sender.parentNode.className = 'sidebar_item inactive';
	}
	id = sender.parentNode.parentNode;
	destroySortable(id);
	createSortable(id, null, 'active');
	updateSortable(id);
}

function toggleTree(page_id, sender) {
	var e = $('tree_'+page_id);
	e.toggle();
	if ( e.visible() ) {
		sender.className = 'expanded';
 	} else {
		sender.className = 'collapsed';
	}
	new Ajax.Request('/admin/pages/'+page_id+';tree_toggle?state='+e.visible(), { method: 'get' });
}

function textileInsert(text, parent_id) {
	text = "\n" + text; // so that each code snippet starts on its own line
	if (window.opener.focusedTextile != null) {
		insertAtCursor(window.opener.focusedTextile, text);
	} else {
		e = window.opener.document.getElementById(parent_id);
		if (e != null) {
			insertAtCursor(e, text);
		}
	}
}

var focusedTextile = null;
function textileHasFocus(textile) {
	focusedTextile = textile;
}

function insertAtCursor(myField, myValue) { 
	if (window.opener.document.selection) { 
		myField.focus(); 
		sel = document.selection.createRange(); 
		sel.text = myValue; 
	} 
	else if (myField.selectionStart || myField.selectionStart == '0') { 
		var startPos = myField.selectionStart; 
		var endPos = myField.selectionEnd; 
		myField.value = myField.value.substring(0, startPos) + myValue + myField.value.substring(endPos, myField.value.length); 
	} else { 
		myField.value += myValue;
	} 
} 

function closeModalOrWindow() {
	if (window.opener) {
		window.close();
	} else {
		parent.Control.Modal.close();
	}
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	
			string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();

function swapBrowser() {
	if ((BrowserDetect.browser == "Explorer") && (BrowserDetect.version == 7)) { /* check IE7 */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-ie7.png)';
	} else if ((BrowserDetect.browser == "Explorer") && (BrowserDetect.version == 6)) { /* check IE6 */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-ie6.png)';		
	} else if (BrowserDetect.browser == "Safari") { /* check Safari */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-safari.png)';		
	} else if (BrowserDetect.browser == "Firefox") { /* check Firefox */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-bg.png)';
	} else if (BrowserDetect.browser == "Camino") { /* check Camino */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-camino.png)';
	} else if (BrowserDetect.browser == "Opera") { /* check Opera */
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-opera.png)';
	} else {
		document.getElementById('bookmarkBox').style.background = 'url(/images/common/bookmark-us-bg.png)';
	}
}

function getHeight(){
	
    var scrollY = 0;
    
    if ( document.documentElement && document.documentElement.scrollHeight ){
        scrollY = document.documentElement.scrollHeight;
        }
    else if ( document.body &&document.body.scrollHeight ){
        scrollY = document.body.scrollHeight;
        }
    
	return scrollY;
   
}

/*function setBkgHeight()
{
    var checkClass = document.getElementsByClassName("extendClass");
    var browserHeight = getHeight();
    
    if (checkClass.length != 0 || checkClass.length != null)
    {
	if ( $('mainContent') )
        	$('mainContent').style.height = browserHeight  + "px";
    }
}

setBkgHeight();*/