YUI Library JavaScript DHTML


            



    
Popup Calendar - Advanced

/*margin and padding on body element
  can introduce errors in determining
  element position and are not recommended;
  we turn them off as a foundation for YUI
  CSS treatments. */
body {
  margin:0;
  padding:0;
}













    /* Clear calendar's float, using dialog inbuilt form element */
    #container .bd form {
        clear:left;
    }
    /* Have calendar squeeze upto bd bounding box */
    #container .bd {
        padding:0;
    }
    #container .hd {
        text-align:left;
    }
    /* Center buttons in the footer */
    #container .ft .button-group {
        text-align:center;
    }
    /* Prevent border-collapse:collapse from bleeding through in IE6, IE7 */
    #container_c.yui-overlay-hidden table {
        *display:none;
    }
    /* Remove calendar's border and set padding in ems instead of px, so we can specify an width in ems for the container */
    #cal {
        border:none;
        padding:1em;
    }
    /* Datefield look/feel */
    .datefield {
        position:relative;
        top:10px;
        left:10px;
        white-space:nowrap;
        border:1px solid black;
        background-color:#eee;
        width:25em;
        padding:5px;
    }
    .datefield input,
    .datefield button,
    .datefield label  {
        vertical-align:middle;
    }
    .datefield label  {
        font-weight:bold;
    }
    .datefield input  {
        width:15em;
    }
    .datefield button  {
        padding:0 5px 0 5px;
        margin-left:2px;
    }
    .datefield button img {
        padding:0;
        margin:0;
        vertical-align:middle;
    }
    /* Example box */
    .box {
        position:relative;
        height:30em;
    }




Popup Calendar - Advanced


  The default Calendar/CalendarGroup controls do not provide positioning or dragdrop support natively, as the Container family's Overlay control and its subclasses do.

This example demonstrates how the Calendar control can be wrapped in a Container (a Dialog control in this case) which allows you to leverage Container family features to position the Calendar relative to a context element. It also show how you can setup click listeners on the document, to hide the dialog when the user clicks somewhere outside of the dialog.




    YAHOO.util.Event.onDOMReady(function(){
        var Event = YAHOO.util.Event,
            Dom = YAHOO.util.Dom,
            dialog,
            calendar;
        var showBtn = Dom.get("show");
        Event.on(showBtn, "click", function() {
            // Lazy Dialog Creation - Wait to create the Dialog, and setup document click listeners, until the first time the button is clicked.
            if (!dialog) {
                // Hide Calendar if we click anywhere in the document other than the calendar
                Event.on(document, "click", function(e) {
                    var el = Event.getTarget(e);
                    var dialogEl = dialog.element;
                    if (el != dialogEl && !Dom.isAncestor(dialogEl, el) && el != showBtn && !Dom.isAncestor(showBtn, el)) {
                        dialog.hide();
                    }
                });
                function resetHandler() {
                    // Reset the current calendar page to the select date, or 
                    // to today if nothing is selected.
                    var selDates = calendar.getSelectedDates();
                    var resetDate;
        
                    if (selDates.length > 0) {
                        resetDate = selDates[0];
                    } else {
                        resetDate = calendar.today;
                    }
        
                    calendar.cfg.setProperty("pagedate", resetDate);
                    calendar.render();
                }
        
                function closeHandler() {
                    dialog.hide();
                }
                dialog = new YAHOO.widget.Dialog("container", {
                    visible:false,
                    context:["show", "tl", "bl"],
                    buttons:[ {text:"Reset", handler: resetHandler, isDefault:true}, {text:"Close", handler: closeHandler}],
                    draggable:false,
                    close:true
                });
                dialog.setHeader('Pick A Date');
                dialog.setBody('

');
                dialog.render(document.body);
                dialog.showEvent.subscribe(function() {
                    if (YAHOO.env.ua.ie) {
                        // Since we're hiding the table using yui-overlay-hidden, we 
                        // want to let the dialog know that the content size has changed, when
                        // shown
                        dialog.fireEvent("changeContent");
                    }
                });
            }
            // Lazy Calendar Creation - Wait to create the Calendar until the first time the button is clicked.
            if (!calendar) {
                calendar = new YAHOO.widget.Calendar("cal", {
                    iframe:false,          // Turn iframe off, since container has iframe support.
                    hide_blank_weeks:true  // Enable, to demonstrate how we handle changing height, using changeContent
                });
                calendar.render();
                calendar.selectEvent.subscribe(function() {
                    if (calendar.getSelectedDates().length > 0) {
                        var selDate = calendar.getSelectedDates()[0];
                        // Pretty Date Output, using Calendar's Locale values: Friday, 8 February 2008
                        var wStr = calendar.cfg.getProperty("WEEKDAYS_LONG")[selDate.getDay()];
                        var dStr = selDate.getDate();
                        var mStr = calendar.cfg.getProperty("MONTHS_LONG")[selDate.getMonth()];
                        var yStr = selDate.getFullYear();
        
                        Dom.get("date").value = wStr + ", " + dStr + " " + mStr + " " + yStr;
                    } else {
                        Dom.get("date").value = "";
                    }
                    dialog.hide();
                });
                calendar.renderEvent.subscribe(function() {
                    // Tell Dialog it's contents have changed, which allows 
                    // container to redraw the underlay (for IE6/Safari2)
                    dialog.fireEvent("changeContent");
                });
            }
            var seldate = calendar.getSelectedDates();
            if (seldate.length > 0) {
                // Set the pagedate to show the selected date if it exists
                calendar.cfg.setProperty("pagedate", seldate[0]);
                calendar.render();
            }
            dialog.show();
        });
    });


   
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