var __prevOpenedBookmarkControl = null;

var __previousSortEle = null;

var __bookmarkCount= 0;

var __bookmarkEditElement= null;

var __dragendFlag = false;

// Set to the LongPress object that is currently waiting for activation,

// ie. it has gotten a mouse-down event and has its timer running.

var __currentLongPress;

var __cancelLinkOpening = false;

function _enableSorting(ele) {

    ele.className = 'sort';

		var evt = document.createEvent("MouseEvents");

		evt.initMouseEvent("mousedown", true, true, window,

		  0, 0, 0, gInitialX, gInitialY, false, false, false, false, 0, null);

		var canceled = !ele.dispatchEvent(evt);

  	views.WebView.gesturesEnabled = false;

    ele.childNodes[0].className = 'controlInSort';

    ele.childNodes[0].childNodes[0].className = 'collapsedSort';

  __sortingEnabled = true;

  __sortEleOffsetTop = ele.offsetTop;

  __previousSortEle = ele;

    ele.className = 'highlight';

  }

function _disableSorting(ele) {

    views.WebView.gesturesEnabled = true;

    ele.className = 'no-sort';

    ele.childNodes[0].className = 'controlIn';

    ele.childNodes[0].childNodes[0].className = 'collapsed';

    __sortingEnabled = false;

    __sortEleOffsetTop = 0;

    __previousSortEle = null;

}

function _dragInit()

{

    $("#bookmarkListTree").sortable({

        placeholder: 'ui-state-highlight',

        axis:'y',

      cancel : 'li.no-sort',

      scrollSensitivity : 40,

      scrollSpeed : 40,

        start: function(event, ui) {

            __dragendFlag = true;

            },

      update: function(event, ui) {

                var sortedItemId = ui.item[0].id;

                var _a = $('#bookmarkListTree').sortable('toArray');

                for (var i=0; i<_a.length; i++)

                {

                    if (sortedItemId == _a[i])

                    {

                        var li = document.getElementById(sortedItemId);

                        _disableSorting(li);

                        var div = li.childNodes[1];

                        window.bookmarksManager.reorderBokmarks(div.childNodes[0].firstChild.nodeValue,i);

                    }

                }

            }

    });

    $("#bookmarkListTree").sortable('enable');

    $("#bookmarkListTree").disableSelection();

}

function _longPress(ele)

{

  if (__sortingEnabled)

  {

            _disableSorting(__previousSortEle)

            return false;

  }

  if(__prevOpenedBookmarkControl)

  	_bookmarkHideControl(__prevOpenedBookmarkControl);

    _enableSorting(ele);

}

function _longPressStarted(lp)

{

    // Remember the current LongPress object so we can cancel it if scrolling

    // starts.

    __currentLongPress = lp;

    __cancelLinkOpening = false;

}

function _handlePanStarted(type)

{

		__cancelLinkOpening = true;

    // Scrolling started, cancel the LongPress.

      if (__currentLongPress != undefined) {

        __currentLongPress.cancel();

        __currentLongPress = undefined;

    }

}

function _bookmarkHideControl(ele){

    ele.childNodes[0].className = 'controlIn';

    ele.childNodes[0].childNodes[0].className = 'collapsed';

    ele.childNodes[1].style.width = (parseInt(window.innerWidth)-70)+"px";

}

function _bookmarkToggleControls(ele){

    try {

            if (__sortingEnabled && ele.parentNode.parentNode!=__previousSortEle)

            {

                _disableSorting(__previousSortEle)

                return false;

            }

            else if (__sortingEnabled && (ele.parentNode.parentNode==__previousSortEle))

            {

                return false;

            }

            ele.parentNode.className = (ele.parentNode.className == 'controlIn') ? 'controlOut' : 'controlIn';

            if (ele.parentNode.className == 'controlIn') {

                ele.className = 'collapsed';

                ele.parentNode.parentNode.childNodes[1].style.width = (parseInt(window.innerWidth)-70)+"px";

            }

            else {

                ele.className = 'expanded';

                ele.parentNode.parentNode.childNodes[1].style.width = (parseInt(window.innerWidth)-220)+"px";

            }

        if (__prevOpenedBookmarkControl != null && __prevOpenedBookmarkControl != ele.parentNode.parentNode)

            _bookmarkHideControl(__prevOpenedBookmarkControl);

    }catch(e) { alert(e); }

    __prevOpenedBookmarkControl = ele.parentNode.parentNode;

}

function _addNewBookmark(bmtitle,bmurl)

{

	  if(__prevOpenedBookmarkControl)

  		_bookmarkHideControl(__prevOpenedBookmarkControl);

    var ul=document.getElementById('bookmarkListTree');

    for (x=0; x< ul.childNodes.length; x++)

        {

        	 var li_element= ul.childNodes[x];

        	 var bm_title= li_element.childNodes[1].childNodes[0].innerText; 

        	 if(bmtitle.toLowerCase() ==  bm_title.toLowerCase())

        	 {

        	 	ul.removeChild(li_element);

        	 	break;

        	 }

        }

    if(__previousSortEle    != null)

        _disableSorting(__previousSortEle)

    __bookmarkCount += 1;

    //create element and add it to bookmark view

    var ul=document.getElementById('bookmarkListTree');

    var dbgTitle = bmtitle.replace(/'/g, "&#39");

  dbgTitle = dbgTitle.replace(/"/g, "&#34");

    var li = _createBookmarkElement(dbgTitle,bmurl,__bookmarkCount);

		li.className = 'no-sort';

    ul.insertBefore(li, ul.childNodes[0]);

    ul.childNodes[0].focus();

    $('html, body').animate({

                        scrollTop: 0}, 1000);

}

function _editBookmark(bmtitle,bmurl)

{

  if(__prevOpenedBookmarkControl)

  	_bookmarkHideControl(__prevOpenedBookmarkControl);

	var ul=document.getElementById('bookmarkListTree');

	for (x=0; x< ul.childNodes.length; x++)

        {

        	 var li_element= ul.childNodes[x];

        	 var bm_title= li_element.childNodes[1].childNodes[0].innerText; 

        	 if(bmtitle.toLowerCase() == bm_title.toLowerCase() &&

        	   __bookmarkEditElement.childNodes[1].childNodes[0].innerText.toLowerCase() != bmtitle.toLowerCase())

        	 {

        	 	ul.removeChild(li_element);

        	 	break;

        	 }

         }

    __bookmarkEditElement.childNodes[1].childNodes[0].innerText  = bmtitle;

    __bookmarkEditElement.childNodes[1].childNodes[2].innerText  = bmurl;

}

function _launchEditBookmark(r,bmtitle,bmurl)

{

    __bookmarkEditElement = r.parentNode.parentNode;

    window.bookmarksManager.launchEditBookmark(bmtitle,bmurl);

}

function _deleteBookmark(r,bmtitle)

{ 

  window.bookmarksManager.deleteBookmark(bmtitle);

    //ToDo : check for error code

    r.parentNode.parentNode.parentNode.removeChild(r.parentNode.parentNode);

}

function _openUrl(ele, newUrl) {

        // DragStart & DragEnd listeners are defined at bottom

        if (__sortingEnabled && (ele.parentNode!=__previousSortEle))

        {

            _disableSorting(__previousSortEle)

            return false;

        }

        else if (__sortingEnabled && (ele.parentNode==__previousSortEle))

            {

                return false;

            }

        else if (__dragendFlag)

        {

            __dragendFlag = false;

            return false;

        }

        else if(__cancelLinkOpening)

        {

        	__cancelLinkOpening = false;

        	return false;

        }

    window.views.WebView.showNormalPage();

    window.ViewStack.switchView( "WebView","BookmarkTreeView");

        // Laod a page to chrome view

        window.views.WebView.loadUrlToCurrentPage(newUrl);

        views.WebView.gesturesEnabled = true;

}

function _updateBookmarkViewGoemetry(displayMode)

{

    try{

        var _list = document.getElementsByClassName('Title');

        for (var i=0; i<_list.length; i++){

             if (_list[i].parentNode.childNodes[0].className == 'controlIn'){

                _list[i].style.width = (parseInt(window.innerWidth)-70)+"px";

            }

             else{

                    _list[i].style.width = (parseInt(window.innerWidth)-220)+"px";

             }

        }

    }catch(e){ alert(e); }

}

function _createBookmarkElement(bmtitle,bmfullurl,idValue)

{

        var _width = parseInt(window.innerWidth)-70;

        var escapedTitle = bmtitle.replace(/&#39/g, "\\'"); 

        var li=document.createElement('li');

        li.id = idValue;

        li.innerHTML =

        '<div class="controlIn">'+

          '<div class="collapsed" onClick="javascript:_bookmarkToggleControls(this);"></div>'+

            '<img src="icons/edit_btn.png" width="56" height="56" vspace="7" hspace="5" '+

              'onclick="_launchEditBookmark(this,this.parentNode.parentNode.childNodes[1].childNodes[0].innerText,'+

                                                                     'this.parentNode.parentNode.childNodes[1].childNodes[2].innerText)">'+

            '<img src="icons/delete_btn.png" width="56" height="56" vspace="7" hspace="5" '+

               'onclick="_deleteBookmark(this, \''+escapedTitle+'\')">'+

        '</div>'+

        '<div class="Title" style="width:'+_width+'px;" onclick="_openUrl(this,this.childNodes[2].innerText);">'+

            '<span class="aTitle">'+bmtitle+'</span>'+

            '<br/>'+

            '<span class="aUrl">'+bmfullurl+'</span>'+

        '</div>';

        return li;

}

function _createBookmarkView()

{

        try

        {

            __currentLongPress = undefined;

            //Get bookmarks data from database

            var bookmakrData = window.bookmarksManager.getBookmarksJSON();

            var myObject = eval('(' + bookmakrData + ')');

            var ul=document.getElementById('bookmarkListTree');

            for (x=0; x<myObject.length; x++)

            {

                var bmurl = myObject[x].urlvalue;

                var bmtitle = myObject[x].title;

                //create element and add it to bookmark view

                var li = _createBookmarkElement(bmtitle,bmurl, x);

                li.className = 'no-sort';

                ul.appendChild(li);

                ul.childNodes[0].focus();

                __bookmarkCount = x;

            }

        } catch(E) { alert(E); }

        _dragInit();

}

function launchBookmarkView()

{

    try{

        window.chrome.aspectChanged.connect(_updateBookmarkViewGoemetry);

        window.bookmarksManager.bookmarkEntryAdded.connect(_addNewBookmark);

        window.bookmarksManager.bookmarkEntryModified.connect(_editBookmark);

        // Get Bookmarks from the database

        _createBookmarkView();

        // Watch for the start of scrolling in the view so we can cancel the

        // long presses to prevent them from interfere with scrolling.  Otherwise

        // the long press callback will fire and trigger sortable mode.

        views.WebView.startingPanGesture.connect(_handlePanStarted);

    }catch(e){ alert(e); }

}