// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults
/*
moves an element in a drag and drop list one position up
*/
function woodClass(elem, className) {
        return new RegExp("(^|\\s)"+className+"(\\s|$)").test(elem.className)
}
function wood_toggle(event) {
        event = event || window.event
        var clickedElem = event.target || event.srcElement
        if (!woodClass(clickedElem, 'WoodExpand')) { return } //не там
        // Node, на который кликнули
        var node = clickedElem.parentNode
        if (woodClass(node, 'WoodExpandLeaf')) { return } // клик на листе
        // определить новый класс для узла
        var newClass = woodClass(node, 'WoodExpandOpen') ? 'WoodExpandClosed' : 'WoodExpandOpen'
        // заменить текущий класс на newClass
        // регексп находит отдельно стоящий open|close и меняет на newClass
        var re =  /(^|\s)(WoodExpandOpen|WoodExpandClosed)(\s|$)/
        node.className = node.className.replace(re, '$1'+newClass+'$3')
}

function moveElementUpforList(list, key) {
  var sequence=Sortable.sequence(list);
  var newsequence=[];
  var reordered=false;

  //move only, if there is more than one element in the list
  if (sequence.length>1) for (var j=0; j<sequence.length; j++) {

    //move, if not already first element, the element is not null
    if (j>0 &&
      sequence[j].length>0 &&
      sequence[j]==key) {

      var temp=newsequence[j-1];
      newsequence[j-1]=key;
      newsequence[j]=temp;
      reordered=true;
    }

    //if element not found, just copy array
    else {
      newsequence[j]=sequence[j];
    }
  }

  if (reordered) Sortable.setSequence(list,newsequence);
    return reordered;

}

/*
moves an element in a drag and drop list one position down
*/	
function moveElementDownforList(list, key) {
  var sequence=Sortable.sequence(list);
  var newsequence=[];
  var reordered=false;

  //move, if not already last element, the element is not null
  if (sequence.length>1) for (var j=0; j<sequence.length; j++) {

    //move, if not already first element, the element is not null
    if (j<(sequence.length-1) &&
      sequence[j].length>0 &&
      sequence[j]==key) {

      newsequence[j+1]=key;
      newsequence[j]=sequence[j+1];
      reordered=true;
      j++;
    }

    //if element not found, just copy array
    else {
      newsequence[j]=sequence[j];
    }
  }

  if (reordered) Sortable.setSequence(list,newsequence);
    return reordered;
}

/* for actionscript degbugging */
ACTIONSCRIPT_DEBUG = false;
function log (message) {
	if (ACTIONSCRIPT_DEBUG) {
		// log to console, use Firebug
		try {
			console.log (message);
		} catch (e) {
			//do nothing
		}
	}
}


// When link contains comment_item_nn anchor, highlight that comment
// Could be extended to higlight other elements, if desired
function highlightCurrent() {
	obj = document.location.hash.match(/comment_item_(\d+)/);
	if (obj) {
	  $('comment_item_'+obj[1]).addClassName('js_highlighted');
		// The above should be enough to dynamicall define CSS styles, but it's not working, so...
	  $$('.js_highlighted .comment_header')[0].style.backgroundColor = '#FDF1C6';
	  $('comment_item_'+obj[1]).scrollTo();
	}	
}
Element.observe(window, 'load', highlightCurrent);

// If page has an element with ID top_password, clears background on focus
// (standard background is 'password' image)
function clearPasswordBg(el) {
	// Toggle password field label and type to password
	if(el.type == "text") {
		if (Prototype.Browser.IE) {
			$(el).hide().remove();
			$("top_password_clone").show();
			$("top_password_clone").focus();
		} else {
		   el.type = 'password';
		   el.value = '';
		   el.focus();
		}
	}
}
function activate_wonder_menu () {
	$$(".wonder_menu").each(function(menu){
		$(menu).observe("mouseover", function() {
			menu.addClass("hovered");
		});
		$(menu).observe("mouseout", function() {
			menu.removeClass("hovered");
		});
	}, this);
}

Element.observe(window, 'load', activate_wonder_menu);


function findPosition( obj ) {
  if( typeof( obj.offsetParent ) != 'undefined' ) {
    for( var posX = 0, posY = 0; obj; obj = obj.offsetParent ) {
      posX += obj.offsetLeft;
      posY += obj.offsetTop;
    }
    return [ posX, posY ];
  } else {
    return [ obj.x, obj.y ];
  }
}

function position_modal_box (id) {
	var window_size = document.viewport.getDimensions();
	var offsets = document.viewport.getScrollOffsets();
	var box = $(id);
	var box_size = box.getDimensions();
	
	// box.toggleClassName("modal_viewing");
	// box.toggle();
	
	var box_top  = (window_size.height - offsets[0])/3 - box_size.height/2
	var box_left = (window_size.width - offsets[1])/2 - box_size.width/2

	box.setStyle({top: box_top + "px", left: box_left + "px"});
}

function modal_box (id, show_or_hide) {
	var box = $(id);
	position_modal_box(box);
	if (show_or_hide == "show") box.show();
	else box.hide();
}

function ask_for_password (elements) {
	$$(".password_validate_form").each(function(form){
		elements_list = []
		$A(elements).each(function(arg, index){
			var el = form.down("input[name*="+ arg +"]");
			el.writeAttribute("old_val", el.value);
			elements_list.push(el);
		});
		window.elements_list = elements_list;
		form.observe("submit",function(e) {
			var should_validate = elements_list.any(function(el) {return el.value != el.readAttribute("old_val");});
			if ( should_validate && $("validate_password").down("input").value == "") {
				Event.stop(e);
			 	$("validate_password").show();
			};
		}, this);
	}, this);
}


// For Share on Facebook links. See http://www.facebook.com/share_partners.php
function fbs_click() {
	u=location.href;
	t=document.title;
	window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');
	return false;
}

function clickable_textentries () {
	$$(".gallery_textentry").each(function(te){

		te.observe("click", function() {
				var url = te.down(".gallery_text_link").href;
				window.location = url
		});
	}, this);
}

Event.observe(window, "load", clickable_textentries)

// http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
function encode_utf8( s ) {
  return unescape( encodeURIComponent( s ) );
}
function decode_utf8( s ) {
  return decodeURIComponent( escape( s ) );
}

function clean_form(form_selector) {
  jQuery(':input', form_selector)
   .not(':button, :submit, :reset, :hidden')
   .val('')
   .removeAttr('checked')
   .removeAttr('selected');
}