Remove obsolete file containing JS "placeholder" shim.

drag_and_drop_v2/drag_and_drop_v2.py

@@ -198,7 +198,6 @@ class DragAndDropBlock(XBlock, XBlockWithSettingsMixin, ThemableXBlockMixin):
         )
         js_urls = (
             'public/js/vendor/jquery-ui-1.10.4.custom.min.js',
-            'public/js/vendor/jquery.html5-placeholder-shim.js',
             'public/js/vendor/handlebars-v1.1.2.js',
             'public/js/drag_and_drop_edit.js',
         )

drag_and_drop_v2/public/js/vendor/jquery.html5-placeholder-shim.js

-(function($) {
-  // @todo Document this.
-  $.extend($,{ placeholder: {
-      browser_supported: function() {
-        return this._supported !== undefined ?
-          this._supported :
-          ( this._supported = !!('placeholder' in $('<input type="text">')[0]) );
-      },
-      shim: function(opts) {
-        var config = {
-          color: '#888',
-          cls: 'placeholder',
-          selector: 'input[placeholder], textarea[placeholder]'
-        };
-        $.extend(config,opts);
-        return !this.browser_supported() && $(config.selector)._placeholder_shim(config);
-      }
-  }});
-
-  $.extend($.fn,{
-    _placeholder_shim: function(config) {
-      function calcPositionCss(target)
-      {
-        var op = $(target).offsetParent().offset();
-        var ot = $(target).offset();
-
-        return {
-          top: ot.top - op.top,
-          left: ot.left - op.left,
-          width: $(target).width()
-        };
-      }
-      function adjustToResizing(label) {
-      	var $target = label.data('target');
-      	if(typeof $target !== "undefined") {
-          label.css(calcPositionCss($target));
-          $(window).one("resize", function () { adjustToResizing(label); });
-        }
-      }
-      return this.each(function() {
-        var $this = $(this);
-
-        if( $this.is(':visible') ) {
-
-          if( $this.data('placeholder') ) {
-            var $ol = $this.data('placeholder');
-            $ol.css(calcPositionCss($this));
-            return true;
-          }
-
-          var possible_line_height = {};
-          if( !$this.is('textarea') && $this.css('height') != 'auto') {
-            possible_line_height = { lineHeight: $this.css('height'), whiteSpace: 'nowrap' };
-          }
-
-          var isBorderBox = ($this.css('box-sizing') === 'border-box');
-
-          var ol = $('<label />')
-            .text($this.attr('placeholder'))
-            .addClass(config.cls)
-            .css($.extend({
-              position:'absolute',
-              display: 'inline',
-              'float':'none',
-              overflow:'hidden',
-              textAlign: 'left',
-              color: config.color,
-              cursor: 'text',
-              paddingTop: isBorderBox ? '0' : $this.css('padding-top'),
-              paddingRight: $this.css('padding-right'),
-              paddingBottom: isBorderBox ? '0' : $this.css('padding-bottom'),
-              paddingLeft: $this.css('padding-left'),
-              fontSize: $this.css('font-size'),
-              fontFamily: $this.css('font-family'),
-              fontStyle: $this.css('font-style'),
-              fontWeight: $this.css('font-weight'),
-              textTransform: $this.css('text-transform'),
-              backgroundColor: 'transparent',
-              zIndex: 99
-            }, possible_line_height))
-            .css(calcPositionCss(this))
-            .attr('for', this.id)
-            .data('target',$this)
-            .click(function(){
-                if (!$(this).data('target').is(':disabled')) {
-                    $(this).data('target').focus();
-                }
-            })
-            .insertBefore(this);
-          $this
-            .data('placeholder',ol)
-						.keydown(function(){
-							ol.hide();
-						})
-						.blur(function() {
-              ol[$this.val().length ? 'hide' : 'show']();
-            }).triggerHandler('blur');
-          $(window).one("resize", function () { adjustToResizing(ol); });
-        }
-      });
-    }
-  });
-})(jQuery);
-
-jQuery(document).add(window).bind('ready load', function() {
-  if (jQuery.placeholder) {
-    jQuery.placeholder.shim();
-  }
-});