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class:ETI"ProcessedAsset; FI"logical_path; TI""blacklight/checkbox_submit.js; FI"pathname; TI"~/Users/jfriesen/.rvm/gems/ruby-2.0.0-p0@curate/gems/blacklight-4.0.1/app/assets/javascripts/blacklight/checkbox_submit.js; FI"content_type; TI"application/javascript; TI"
mtime; TI"2013-04-08T11:16:57-04:00; TI"length; TiųI"digest; TI"%14cd102f67dce3d40823b0ca7dc57f0a; FI"source; TI"ų/* A JQuery plugin (should this be implemented as a widget instead? not sure)
   that will convert a "toggle" form, with single submit button to add/remove
   something, like used for Bookmarks, into an AJAXy checkbox instead. 
   
   Apply to a form. Does require certain assumption about the form:
    1) The same form 'action' href must be used for both ADD and REMOVE
       actions, with the different being the hidden input name="_method"
       being set to "put" or "delete" -- that's the Rails method to pretend
       to be doing a certain HTTP verb. So same URL, PUT to add, DELETE
       to remove. This plugin assumes that. 
       
       Plus, the form this is applied to should provide a data-doc-id 
       attribute (HTML5-style doc-*) that contains the id/primary key
       of the object in question -- used by plugin for a unique value for
       DOM id's. 
       
   Pass in options for your class name and labels:
   $("form.something").bl_checkbox_submit({    
        checked_label: "Selected",
        unchecked_label: "Select",
        progress_label: "Saving...",
        //css_class is added to elements added, plus used for id base
        css_class: "toggle_my_kinda_form",
        success: function(after_success_check_state) {
          #optional callback
        }
   });
*/

(function($) {    
    $.fn.bl_checkbox_submit = function(arg_opts) {              
      
      this.each(function() {
        var options = $.extend({}, $.fn.bl_checkbox_submit.defaults, arg_opts);
                                  
          
        var form = $(this);
        form.children().hide();
        //We're going to use the existing form to actually send our add/removes
        //This works conveneintly because the exact same action href is used
        //for both bookmarks/$doc_id.  But let's take out the irrelevant parts
        //of the form to avoid any future confusion. 
        form.find("input[type=submit]").remove();
        form.addClass('form-inline');
        
        //View needs to set data-doc-id so we know a unique value
        //for making DOM id
        var unique_id = form.attr("data-doc-id") || Math.random();
        // if form is currently using method delete to change state, 
        // then checkbox is currently checked
        var checked = (form.find("input[name=_method][value=delete]").size() != 0);
            
        var checkbox = $('<input type="checkbox">')	    
          .addClass( options.css_class )
          .attr("id", options.css_class + "_" + unique_id);	  
        var label = $('<label>')
          .addClass( options.css_class )
          .addClass('checkbox')
          .attr("for", options.css_class + '_' + unique_id)
          .attr("title", form.attr("title") || "");
        var span = $('<span>');

        label.append(checkbox);
        label.append(" ");
        label.append(span);  
          
        function update_state_for(state) {
            checkbox.attr("checked", state);
            label.toggleClass("checked", state);
            if (state) {    
               //Set the Rails hidden field that fakes an HTTP verb
               //properly for current state action. 
               form.find("input[name=_method]").val("delete");
               span.text(options.checked_label);
            } else {
               form.find("input[name=_method]").val("put");
               span.text(options.unchecked_label);
            }
          }
        
        form.append(label);
        update_state_for(checked);
        
        checkbox.click(function() {
            span.text(options.progress_label);
            label.attr("disabled", "disabled");  
            checkbox.attr("disabled", "disabled");
                            
            $.ajax({
                url: form.attr("action"),
                dataType: 'json',
                type: form.attr("method").toUpperCase(),
                data: form.serialize(),
                error: function() {
                   alert("Error");
                   update_state_for(checked);
                   label.removeAttr("disabled");
                   checkbox.removeAttr("disabled");
                },
                success: function(data, status, xhr) {
                  //if app isn't running at all, xhr annoyingly
                  //reports success with status 0. 
                  if (xhr.status != 0) {
                    checked = ! checked;
                    update_state_for(checked);
                    label.removeAttr("disabled");
                    checkbox.removeAttr("disabled");
                    options.success.call(form, checked);
                  } else {
                    alert("Error");
                    update_state_for(checked);
                    label.removeAttr("disabled");
                    checkbox.removeAttr("disabled");
                  }
                }
            });
            
            return false;
        }); //checkbox.click
        
        
      }); //this.each      
      return this;
    };
	
  $.fn.bl_checkbox_submit.defaults =  {
            checked_label: "",
            unchecked_label: "",
            progress_label: "Saving...",
            //css_class is added to elements added, plus used for id base
            css_class: "bl_checkbox_submit",
            success: function() {} //callback
  };
})(jQuery);
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