jQuery UI Droppable - Simple photo manager : UI Droppable « jQuery « JavaScript Tutorial






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<!doctype html>
<html lang="en">
  <head>
    <title>jQuery UI Droppable - Simple photo manager</title>
    <link type="text/css" href="js/themes/base/ui.all.css" rel="stylesheet" />
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript" src="js/ui/ui.core.js"></script>
    <script type="text/javascript" src="js/ui/ui.draggable.js"></script>
    <script type="text/javascript" src="js/ui/ui.droppable.js"></script>
    <script type="text/javascript" src="js/ui/ui.resizable.js"></script>
    <script type="text/javascript" src="js/ui/ui.dialog.js"></script>
    <link type="text/css" href="js/demos.css" rel="stylesheet" />
    <style type="text/css">
      #gallery { float: left; width: 65%; min-height: 12em; } * html #gallery { height: 12em; } /* IE6 */
      .gallery.custom-state-active { background: #eee; }
      .gallery li { float: left; width: 96px; padding: 0.4em; margin: 0 0.4em 0.4em 0; text-align: center; }
      .gallery li h5 { margin: 0 0 0.4em; cursor: move; }
      .gallery li a { float: right; }
      .gallery li a.ui-icon-zoomin { float: left; }
      .gallery li img { width: 100%; cursor: move; }

      #trash { float: right; width: 32%; min-height: 18em; padding: 1%;} * html #trash { height: 18em; } /* IE6 */
      #trash h4 { line-height: 16px; margin: 0 0 0.4em; }
      #trash h4 .ui-icon { float: left; }
      #trash .gallery h5 { display: none; }
    </style>
    <script type="text/javascript">
      $(function() {
        // there's the gallery and the trash
        var $gallery = $('#gallery'), $trash = $('#trash');

        // let the gallery items be draggable
        $('li',$gallery).draggable({
          cancel: 'a.ui-icon',// clicking an icon won't initiate dragging
          revert: 'invalid', // when not dropped, the item will revert back to its initial position
          containment: $('#demo-frame').length ? '#demo-frame' : 'document', // stick to demo-frame if present
          helper: 'clone',
          cursor: 'move'
        });

        // let the trash be droppable, accepting the gallery items
        $trash.droppable({
          accept: '#gallery > li',
          activeClass: 'ui-state-highlight',
          drop: function(ev, ui) {
            deleteImage(ui.draggable);
          }
        });

        // let the gallery be droppable as well, accepting items from the trash
        $gallery.droppable({
          accept: '#trash li',
          activeClass: 'custom-state-active',
          drop: function(ev, ui) {
            recycleImage(ui.draggable);
          }
        });

        // image deletion function
        var recycle_icon = '<a href="link/to/recycle/script/when/we/have/js/off" title="Recycle this image" class="ui-icon ui-icon-refresh">Recycle image</a>';
        function deleteImage($item) {
          $item.fadeOut(function() {
            var $list = $('ul',$trash).length ? $('ul',$trash) : $('<ul class="gallery ui-helper-reset"/>').appendTo($trash);

            $item.find('a.ui-icon-trash').remove();
            $item.append(recycle_icon).appendTo($list).fadeIn(function() {
              $item.animate({ width: '48px' }).find('img').animate({ height: '36px' });
            });
          });
        }

        // image recycle function
        var trash_icon = '<a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>';
        function recycleImage($item) {
          $item.fadeOut(function() {
            $item.find('a.ui-icon-refresh').remove();
            $item.css('width','96px').append(trash_icon).find('img').css('height','72px').end().appendTo($gallery).fadeIn();
          });
        }

        // image preview function, demonstrating the ui.dialog used as a modal window
        function viewLargerImage($link) {
          var src = $link.attr('href');
          var title = $link.siblings('img').attr('alt');
          var $modal = $('img[src$="'+src+'"]');

          if ($modal.length) {
            $modal.dialog('open')
          } else {
            var img = $('<img alt="'+title+'" width="384" height="288" style="display:none;padding: 8px;" />')
              .attr('src',src).appendTo('body');
            setTimeout(function() {
              img.dialog({
                  title: title,
                  width: 400,
                  modal: true
                });
            }, 1);
          }
        }

        // resolve the icons behavior with event delegation
        $('ul.gallery > li').click(function(ev) {
          var $item = $(this);
          var $target = $(ev.target);

          if ($target.is('a.ui-icon-trash')) {
            deleteImage($item);
          } else if ($target.is('a.ui-icon-zoomin')) {
            viewLargerImage($target);
          } else if ($target.is('a.ui-icon-refresh')) {
            recycleImage($item);
          }

          return false;
        });
      });
    </script>
  </head>
  <body>
    <div class="demo ui-widget ui-helper-clearfix">

      <ul id="gallery" class="gallery ui-helper-reset ui-helper-clearfix">
        <li class="ui-widget-content ui-corner-tr">
          <h5 class="ui-widget-header">High Tatras</h5>
          <img src="images/high_tatras_min.jpg" alt="The peaks of High Tatras" width="96" height="72" />
          <a href="images/high_tatras.jpg" title="View larger image" class="ui-icon ui-icon-zoomin">View larger</a>
          <a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
        </li>
        <li class="ui-widget-content ui-corner-tr">
          <h5 class="ui-widget-header">High Tatras 2</h5>
          <img src="images/high_tatras2_min.jpg" alt="The chalet at the Green mountain lake" width="96" height="72" />
          <a href="images/high_tatras2.jpg" title="View larger image" class="ui-icon ui-icon-zoomin">View larger</a>
          <a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
        </li>
        <li class="ui-widget-content ui-corner-tr">
          <h5 class="ui-widget-header">High Tatras 3</h5>
          <img src="images/high_tatras3_min.jpg" alt="Planning the ascent" width="96" height="72" />
          <a href="images/high_tatras3.jpg" title="View larger image" class="ui-icon ui-icon-zoomin">View larger</a>
          <a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
        </li>
        <li class="ui-widget-content ui-corner-tr">
          <h5 class="ui-widget-header">High Tatras 4</h5>
          <img src="images/high_tatras4_min.jpg" alt="On top of Kozi kopka" width="96" height="72" />
          <a href="images/high_tatras4.jpg" title="View larger image" class="ui-icon ui-icon-zoomin">View larger</a>
          <a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
        </li>
      </ul>

      <div id="trash" class="ui-widget-content ui-state-default">
        <h4 class="ui-widget-header"><span class="ui-icon ui-icon-trash">Trash</span> Trash</h4>
      </div>

    </div><!-- End demo -->

    <div class="demo-description">

      <p>You can delete an image either by dragging it to the Trash or by clicking the trash icon.</p>
      <p>You can "recycle" an image by dragging it back to the gallery or by clicking the recycle icon.</p>
      <p>You can view larger image by clicking the zoom icon. jQuery UI dialog widget is used for the modal window.</p>

    </div><!-- End demo-description -->
  </body>
</html>








30.143.UI Droppable
30.143.1.jQuery UI Droppable - Accept Demo
30.143.2.jQuery UI Droppable - Simple photo manager
30.143.3.jQuery UI Droppable - Prevent propagation
30.143.4.jQuery UI Droppable - Revert draggable position
30.143.5.jQuery UI Droppable - Visual feedback
30.143.6.Get relative and absolute position of the dropped object
30.143.7.Droppable object
30.143.8.Mark accepted object
30.143.9.Mark active class
30.143.10.Droppable accepted function
30.143.11.Drag and drop events: activate, deactivate, drop, out, over
30.143.12.Drop to different objects and get their id