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//  Vix specific Javascript for jquery use

//

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//  Generate a confirmation dialog

//  Args:   text - Body of the message

//          parms - A simple object of options - see defaults

//                  Special: position of 'center' will place in center of visible screen.

//  Note: will return BEFORE the user makes a selection

//        Can call a function and/or a URL if confirmed

//        Can 'show' a progress element

//        See 'defaults' below for bits that can be modified

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

function vixConfirm(text, parms){

     var defaults = {

        resizable: true,

        height: 'auto',

        width : 'auto',

        modal: true,

        position: { my: "top", at: "top+100", of: window },

        title: "Confirm",

        icon: "images/i_warning.gif",

        url : null,

        ok : null,

        post : null,

        button : "Confirm",

        progress : "#ProgressBar"

     };

     $.extend( defaults, parms);

     defaults.open = function() {

        $(this).siblings('.ui-dialog-buttonpane').find('button:eq(1)').focus(); 

        var markup = '<img src="'+defaults.icon+'" style="float:left; margin:0 7px 20px 0;">' + text;

        $(this).html(markup);

     };

    defaults.close = function() {

        $(this).remove();

    };

    defaults.buttons = [

        {

        text : defaults.button,

        click : function (){

                if (defaults.ok != null ){

                    defaults.ok(defaults);

                }

                if ( defaults.progress != null) {

                    $(defaults.progress).show().css("visibility", "visible");    

                }

                if (defaults.url != null ) {

                    window.location.href = defaults.url;

                }

                if (defaults.post != null ) {

                    $('form[name="'+defaults.post+'"]').submit();    

                }

                $(this).dialog("close");

            }

        },

        {

        text : 'Cancel',

        click : function (){

            $(this).dialog("close");

            }

        }];

     var dd = $( "<div>Confirm</div>" ).dialog(defaults);

     // Once the dialog has been instantiated the autosize dimensions are known

     // and the dialog can be correctly positioned

     if (defaults.position == 'center')

     {

         dd.dialog("widget").center();

         //console.log("Center in Window");

     }

     else

     {

         dd.dialog("widget").position(defaults.position);

         //console.log("Original position");

     }

     // Return false incase this is used as an onClick

     return false;

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// Compatability function

//      Confirm Deletion of an item

//      Assumes that the item is within an 'anchor' and that an href can be located

//      Uses VixConfirm to do the heavy lifting

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

function vixConfirmDelete (txt)

{

    var href = window.event.currentTarget.href;

    vixConfirm('Are you sure you want to delete '+ txt +'?', {url : href})

    return false;

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//  Similar to 'alert', but uses the jquery dialog mechnaism

//  Note: will return BEFORE the user makes a selection

//  Returns a Defereed object that will be rejected when the dialog is closed.

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

function vixAlert(text){

     var dbo = $.Deferred();

     var dd = $( "<div>Alert</div>" ).dialog({

        resizable: true,

        height: 'auto',

        width : 'auto',

        modal: true,

        title:'Alert',

        position: { my: "top", at: "top+100", of: window },

        open: function() {

            $(this).html('<img src="images/i_critical.gif" style="float:left; margin:0 7px 20px 0;">' + text);

        },

        close : function() {

            $(this).remove();

            dbo.reject();

        },

        buttons: {

            "Ok": function() {

                $(this).dialog("close");

            }

        }

     });

     // Once the dialog has been instantiated the autosize dimensions are known

     // and the dialog can be correctly positioned

     // Note: Appears that we need to position it twice

     //       Once in the dialog creation, and once here

     dd.dialog("widget").position({ my: "top", at: "top+100", of: window });

     return dbo;

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//  jQuery extension function

//  Position an element inthe center of the visible window. Not the document and not the window(viewport).

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

jQuery.fn.center = function () {

    //  Support many browsers

    var w = window.innerWidth  || document.documentElement.clientWidth  || document.body.clientWidth;

    var h = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;

    this.css("position","fixed");

    this.css("top", Math.max(0,  ((h - $(this).outerHeight()) / 2) ) + "px");

    this.css("left", Math.max(0, ((w - $(this).outerWidth()) / 2) ) + "px");

    return this;

}

//--------- Support to open modal dialog in an iFrame

//  Example: <a class="vixIframeDialog" href="aaa.asp" title="Some Title">Link Text</a>

//

var vixIframe = {};

$(document).ready(function () {

    $('.vixIframeDialog').on('click', function(e){

		if (!vixIframe.parent) {

			e.preventDefault();

			vixIframe.parent = this;

			vixIframe.pagetitle = $(this).attr("title");

			if (! vixIframe.pagetitle) {

				vixIframe.pagetitle = $(this).text();

			}

			vixIframe.url = $(this).attr("href");

			vixIframeDialogCommon();

		}

	});

    //

    // Prevent (at least control) the user from navigating within the iframe

    // If this invocation is within an iFrame, then close the iFrame if

    // the user attempt to navigate away from the iFrame.

    //      This means that the iFrame cannot replace itself

    // 

    if (typeof parent.vixIframe.pagetitle !== 'undefined')

    {

        //console.log("DocumentReady within iframe");

        window.onunload = function(){

            //console.log("Unloading within iframe");

        }

    }

});

//

//	Callable function to instantiate an Iframe Dialog

//  Used in a replacement for MM_openBrWindow called MM_openVixIFrame

// 	Parameters:

// 		pthis	- The parent's context

//		url		- URL of the windoe content

//  	winName	- Title of the new Window

function vixIframeDialog2(pthis, url, winName)

{

	vixIframe.parent = pthis;

	vixIframe.pagetitle = winName;

	vixIframe.url = url;

	vixIframeDialogCommon();

}

function vixIframeDialogCommon()

{

	var iframe = $('<iframe onload="IframeLoaded(this);" id="iframe" style="border:0px; overflow: scroll;" src="' + vixIframe.url + '" width="100%" height="100%" ></iframe>');

	var $dialog = $('<div></div>').html(iframe);

	var $dialog2 = $dialog.dialog({

		autoOpen: true,

		modal: true,

		height : 'auto,', 

		width : 'auto',

		resizable: false,

		position : { my:'top', at: 'top+100', of : window },

		dialogClass: "rounded_box",

		title: 'Loading - ' + vixIframe.pagetitle,

		close: function(event, ui){

			//console.log('closing dialog');

			$(this).dialog("destroy");

			vixIframe = {};

			window.onbeforeunload = null;

			window.onunload = null;

			},

		// Prevent Chrome from adding scrollbars when dragged

		dragStop: function( event, ui ){

			vixIframe.IFrame.parentElement.style.overflow = "";

			},

		dragStart: function( event, ui ){

			vixIframe.IFrame.parentElement.style.overflow = "hidden";

			}

	});

	vixIframe.Dialog = $dialog;

	vixIframe.DialogProps = $dialog2;

	vixIframe.DialogWidget = $($dialog2).dialog('widget');

	return false;

}

//

//	Called when the iframe is loaded or reloaded

//

function IframeLoaded(iframe) {

	// Save to resize iframe

	vixIframe.IFrame = iframe;

	// Reset the title

	vixIframe.Dialog.dialog('option','title', vixIframe.pagetitle);

	// Resize the frame

	resizeIframe();

};

//

//	This function can be called from within the iframe to have it resized

//	Used if the iframe is too dynamic and extends itself from time to time

//

function resizeIframe()

{

    if (vixIframe.IFrame != null) {

		iframe.height = iframe.contentWindow.document.body.scrollHeight + "px";

		$(vixIframe.Dialog).height(iframe.height);

		//console.log ("Resize Iframe:",iframe.height );

		iframe.width = iframe.contentWindow.document.body.scrollWidth + "px";

		$(vixIframe.Dialog).width(iframe.width);

		//console.log ("Resize Iframe:",iframe.width );

		// Reposition the dialog

		$(vixIframe.DialogWidget).position($(vixIframe.DialogProps).dialog("option").position);

	}

}

//

//	This function can be called from with the iframe to close the Iframe

//	Often wired up to the cancel button

function closeIFrame()

{

    if (vixIframe.Dialog != null) {

        //console.log('closing iframe');

        vixIframe.Dialog.dialog('close');

        vixIframe = {};

    }

}