Thursday 7 March 2013

jQuery-Interactions-Draggable


Draggable





Layer functionality onto the draggable using the startdrag, and stop events. Start is fired at the start of the drag; drag during the drag; and stop when dragging stops.
Source Code
<!doctype html>

<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>jQuery UI Draggable - Events</title>
  <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.1/themes/base/jquery-ui.css" />
  <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
  <script src="http://code.jquery.com/ui/1.10.1/jquery-ui.js"></script>
  <link rel="stylesheet" href="/resources/demos/style.css" />
  <style>
  #draggable { width: 16em; padding: 0 1em; }
  #draggable ul li { margin: 1em 0; padding: 0.5em 0; } * html #draggable ul li { height: 1%; }
  #draggable ul li span.ui-icon { float: left; }
  #draggable ul li span.count { font-weight: bold; }
  </style>
  <script>
  $(function() {
    var $start_counter = $( "#event-start" ),
      $drag_counter = $( "#event-drag" ),
      $stop_counter = $( "#event-stop" ),
      counts = [ 0, 0, 0 ];

    $( "#draggable" ).draggable({
      start: function() {
        counts[ 0 ]++;
        updateCounterStatus( $start_counter, counts[ 0 ] );
      },
      drag: function() {
        counts[ 1 ]++;
        updateCounterStatus( $drag_counter, counts[ 1 ] );
      },
      stop: function() {
        counts[ 2 ]++;
        updateCounterStatus( $stop_counter, counts[ 2 ] );
      }
    });

    function updateCounterStatus( $event_counter, new_count ) {
      // first update the status visually...
      if ( !$event_counter.hasClass( "ui-state-hover" ) ) {
        $event_counter.addClass( "ui-state-hover" )
          .siblings().removeClass( "ui-state-hover" );
      }
      // ...then update the numbers
      $( "span.count", $event_counter ).text( new_count );
    }
  });
  </script>
</head>
<body>

<div id="draggable" class="ui-widget ui-widget-content">

  <p>Drag me to trigger the chain of events.</p>

  <ul class="ui-helper-reset">
    <li id="event-start" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-play"></span>"start" invoked 

<span class="count">0</span>x</li>
    <li id="event-drag" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-arrow-4"></span>"drag" invoked 

<span class="count">0</span>x</li>
    <li id="event-stop" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-stop"></span>"stop" invoked 

<span class="count">0</span>x</li>
  </ul>
</div> 
</body>
</html>


Example 2 : jQuery UI Draggable + Sortable



Draggables are built to interact seamlessly with sortables.
Source Code
<!doctype html> 
<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>jQuery UI Draggable + Sortable</title>
  <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.1/themes/base/jquery-ui.css" />
  <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
  <script src="http://code.jquery.com/ui/1.10.1/jquery-ui.js"></script>
  <link rel="stylesheet" href="/resources/demos/style.css" />
  <style>
  ul { list-style-type: none; margin: 0; padding: 0; margin-bottom: 10px; }
  li { margin: 5px; padding: 5px; width: 150px; }
  </style>
  <script>
  $(function() {
    $( "#sortable" ).sortable({
      revert: true
    });
    $( "#draggable" ).draggable({
      connectToSortable: "#sortable",
      helper: "clone",
      revert: "invalid"
    });
    $( "ul, li" ).disableSelection();
  });
  </script>
</head>
<body> 
<ul>
  <li id="draggable" class="ui-state-highlight">Drag me down</li>
</ul> 
<ul id="sortable">
  <li class="ui-state-default">Item 1</li>
  <li class="ui-state-default">Item 2</li>
  <li class="ui-state-default">Item 3</li>
  <li class="ui-state-default">Item 4</li>
  <li class="ui-state-default">Item 5</li>
</ul> 
</body>
</html>



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