merge branch validation

1 files changed, 860 insertions, 0 deletions

diff --git a/app/assets/javascripts/plugins/jquery.tokeninput.js b/app/assets/javascripts/plugins/jquery.tokeninput.js
new file mode 100644
index 000000000..87641a57a
--- /dev/null
+++ b/app/assets/javascripts/plugins/jquery.tokeninput.js
@@ -0,0 +1,860 @@
+/*
+ * jQuery Plugin: Tokenizing Autocomplete Text Entry
+ * Version 1.6.0
+ *
+ * Copyright (c) 2009 James Smith (http://loopj.com)
+ * Licensed jointly under the GPL and MIT licenses,
+ * choose which one suits your project best!
+ *
+ */
+
+(function ($) {
+// Default settings
+var DEFAULT_SETTINGS = {
+	// Search settings
+    method: "GET",
+    contentType: "json",
+    queryParam: "q",
+    searchDelay: 300,
+    minChars: 1,
+    propertyToSearch: "name",
+    jsonContainer: null,
+
+	// Display settings
+    hintText: "Type in a search term",
+    noResultsText: "No results",
+    searchingText: "Searching...",
+    deleteText: "×",
+    animateDropdown: true,
+
+	// Tokenization settings
+    tokenLimit: null,
+    tokenDelimiter: ",",
+    preventDuplicates: false,
+
+	// Output settings
+    tokenValue: "id",
+
+	// Prepopulation settings
+    prePopulate: null,
+    processPrePopulate: false,
+
+	// Manipulation settings
+    idPrefix: "token-input-",
+
+	// Formatters
+    resultsFormatter: function(item){ return "<li>" + item[this.propertyToSearch]+ "</li>" },
+    tokenFormatter: function(item) { return "<li><p>" + item[this.propertyToSearch] + "</p></li>" },
+
+	// Callbacks
+    onResult: null,
+    onAdd: null,
+    onDelete: null,
+    onReady: null
+};
+
+// Default classes to use when theming
+var DEFAULT_CLASSES = {
+    tokenList: "token-input-list",
+    token: "token-input-token",
+    tokenDelete: "token-input-delete-token",
+    selectedToken: "token-input-selected-token",
+    highlightedToken: "token-input-highlighted-token",
+    dropdown: "token-input-dropdown",
+    dropdownItem: "token-input-dropdown-item",
+    dropdownItem2: "token-input-dropdown-item2",
+    selectedDropdownItem: "token-input-selected-dropdown-item",
+    inputToken: "token-input-input-token"
+};
+
+// Input box position "enum"
+var POSITION = {
+    BEFORE: 0,
+    AFTER: 1,
+    END: 2
+};
+
+// Keys "enum"
+var KEY = {
+    BACKSPACE: 8,
+    TAB: 9,
+    ENTER: 13,
+    ESCAPE: 27,
+    SPACE: 32,
+    PAGE_UP: 33,
+    PAGE_DOWN: 34,
+    END: 35,
+    HOME: 36,
+    LEFT: 37,
+    UP: 38,
+    RIGHT: 39,
+    DOWN: 40,
+    NUMPAD_ENTER: 108,
+    COMMA: 188
+};
+
+// Additional public (exposed) methods
+var methods = {
+    init: function(url_or_data_or_function, options) {
+        var settings = $.extend({}, DEFAULT_SETTINGS, options || {});
+
+        return this.each(function () {
+            $(this).data("tokenInputObject", new $.TokenList(this, url_or_data_or_function, settings));
+        });
+    },
+    clear: function() {
+        this.data("tokenInputObject").clear();
+        return this;
+    },
+    add: function(item) {
+        this.data("tokenInputObject").add(item);
+        return this;
+    },
+    remove: function(item) {
+        this.data("tokenInputObject").remove(item);
+        return this;
+    },
+    get: function() {
+    	return this.data("tokenInputObject").getTokens();
+   	}
+}
+
+// Expose the .tokenInput function to jQuery as a plugin
+$.fn.tokenInput = function (method) {
+    // Method calling and initialization logic
+    if(methods[method]) {
+        return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
+    } else {
+        return methods.init.apply(this, arguments);
+    }
+};
+
+// TokenList class for each input
+$.TokenList = function (input, url_or_data, settings) {
+    //
+    // Initialization
+    //
+
+    // Configure the data source
+    if($.type(url_or_data) === "string" || $.type(url_or_data) === "function") {
+        // Set the url to query against
+        settings.url = url_or_data;
+
+        // If the URL is a function, evaluate it here to do our initalization work
+        var url = computeURL();
+
+        // Make a smart guess about cross-domain if it wasn't explicitly specified
+        if(settings.crossDomain === undefined) {
+            if(url.indexOf("://") === -1) {
+                settings.crossDomain = false;
+            } else {
+                settings.crossDomain = (location.href.split(/\/+/g)[1] !== url.split(/\/+/g)[1]);
+            }
+        }
+    } else if(typeof(url_or_data) === "object") {
+        // Set the local data to search through
+        settings.local_data = url_or_data;
+    }
+
+    // Build class names
+    if(settings.classes) {
+        // Use custom class names
+        settings.classes = $.extend({}, DEFAULT_CLASSES, settings.classes);
+    } else if(settings.theme) {
+        // Use theme-suffixed default class names
+        settings.classes = {};
+        $.each(DEFAULT_CLASSES, function(key, value) {
+            settings.classes[key] = value + "-" + settings.theme;
+        });
+    } else {
+        settings.classes = DEFAULT_CLASSES;
+    }
+
+
+    // Save the tokens
+    var saved_tokens = [];
+
+    // Keep track of the number of tokens in the list
+    var token_count = 0;
+
+    // Basic cache to save on db hits
+    var cache = new $.TokenList.Cache();
+
+    // Keep track of the timeout, old vals
+    var timeout;
+    var input_val;
+
+    // Create a new text input an attach keyup events
+    var input_box = $("<input type=\"text\"  autocomplete=\"off\">")
+        .css({
+            outline: "none"
+        })
+        .attr("id", settings.idPrefix + input.id)
+        .focus(function () {
+            if (settings.tokenLimit === null || settings.tokenLimit !== token_count) {
+                show_dropdown_hint();
+            }
+        })
+        .blur(function () {
+            hide_dropdown();
+            $(this).val("");
+        })
+        .bind("keyup keydown blur update", resize_input)
+        .keydown(function (event) {
+            var previous_token;
+            var next_token;
+
+            switch(event.keyCode) {
+                case KEY.LEFT:
+                case KEY.RIGHT:
+                case KEY.UP:
+                case KEY.DOWN:
+                    if(!$(this).val()) {
+                        previous_token = input_token.prev();
+                        next_token = input_token.next();
+
+                        if((previous_token.length && previous_token.get(0) === selected_token) || (next_token.length && next_token.get(0) === selected_token)) {
+                            // Check if there is a previous/next token and it is selected
+                            if(event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) {
+                                deselect_token($(selected_token), POSITION.BEFORE);
+                            } else {
+                                deselect_token($(selected_token), POSITION.AFTER);
+                            }
+                        } else if((event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) && previous_token.length) {
+                            // We are moving left, select the previous token if it exists
+                            select_token($(previous_token.get(0)));
+                        } else if((event.keyCode === KEY.RIGHT || event.keyCode === KEY.DOWN) && next_token.length) {
+                            // We are moving right, select the next token if it exists
+                            select_token($(next_token.get(0)));
+                        }
+                    } else {
+                        var dropdown_item = null;
+
+                        if(event.keyCode === KEY.DOWN || event.keyCode === KEY.RIGHT) {
+                            dropdown_item = $(selected_dropdown_item).next();
+                        } else {
+                            dropdown_item = $(selected_dropdown_item).prev();
+                        }
+
+                        if(dropdown_item.length) {
+                            select_dropdown_item(dropdown_item);
+                        }
+                        return false;
+                    }
+                    break;
+
+                case KEY.BACKSPACE:
+                    previous_token = input_token.prev();
+
+                    if(!$(this).val().length) {
+                        if(selected_token) {
+                            delete_token($(selected_token));
+                            hidden_input.change();
+                        } else if(previous_token.length) {
+                            select_token($(previous_token.get(0)));
+                        }
+
+                        return false;
+                    } else if($(this).val().length === 1) {
+                        hide_dropdown();
+                    } else {
+                        // set a timeout just long enough to let this function finish.
+                        setTimeout(function(){do_search();}, 5);
+                    }
+                    break;
+
+                case KEY.TAB:
+                case KEY.ENTER:
+                case KEY.NUMPAD_ENTER:
+                case KEY.COMMA:
+                  if(selected_dropdown_item) {
+                    add_token($(selected_dropdown_item).data("tokeninput"));
+                    hidden_input.change();
+                    return false;
+                  }
+                  break;
+
+                case KEY.ESCAPE:
+                  hide_dropdown();
+                  return true;
+
+                default:
+                    if(String.fromCharCode(event.which)) {
+                        // set a timeout just long enough to let this function finish.
+                        setTimeout(function(){do_search();}, 5);
+                    }
+                    break;
+            }
+        });
+
+    // Keep a reference to the original input box
+    var hidden_input = $(input)
+                           .hide()
+                           .val("")
+                           .focus(function () {
+                               input_box.focus();
+                           })
+                           .blur(function () {
+                               input_box.blur();
+                           });
+
+    // Keep a reference to the selected token and dropdown item
+    var selected_token = null;
+    var selected_token_index = 0;
+    var selected_dropdown_item = null;
+
+    // The list to store the token items in
+    var token_list = $("<ul />")
+        .addClass(settings.classes.tokenList)
+        .click(function (event) {
+            var li = $(event.target).closest("li");
+            if(li && li.get(0) && $.data(li.get(0), "tokeninput")) {
+                toggle_select_token(li);
+            } else {
+                // Deselect selected token
+                if(selected_token) {
+                    deselect_token($(selected_token), POSITION.END);
+                }
+
+                // Focus input box
+                input_box.focus();
+            }
+        })
+        .mouseover(function (event) {
+            var li = $(event.target).closest("li");
+            if(li && selected_token !== this) {
+                li.addClass(settings.classes.highlightedToken);
+            }
+        })
+        .mouseout(function (event) {
+            var li = $(event.target).closest("li");
+            if(li && selected_token !== this) {
+                li.removeClass(settings.classes.highlightedToken);
+            }
+        })
+        .insertBefore(hidden_input);
+
+    // The token holding the input box
+    var input_token = $("<li />")
+        .addClass(settings.classes.inputToken)
+        .appendTo(token_list)
+        .append(input_box);
+
+    // The list to store the dropdown items in
+    var dropdown = $("<div>")
+        .addClass(settings.classes.dropdown)
+        .appendTo("body")
+        .hide();
+
+    // Magic element to help us resize the text input
+    var input_resizer = $("<tester/>")
+        .insertAfter(input_box)
+        .css({
+            position: "absolute",
+            top: -9999,
+            left: -9999,
+            width: "auto",
+            fontSize: input_box.css("fontSize"),
+            fontFamily: input_box.css("fontFamily"),
+            fontWeight: input_box.css("fontWeight"),
+            letterSpacing: input_box.css("letterSpacing"),
+            whiteSpace: "nowrap"
+        });
+
+    // Pre-populate list if items exist
+    hidden_input.val("");
+    var li_data = settings.prePopulate || hidden_input.data("pre");
+    if(settings.processPrePopulate && $.isFunction(settings.onResult)) {
+        li_data = settings.onResult.call(hidden_input, li_data);
+    }
+    if(li_data && li_data.length) {
+        $.each(li_data, function (index, value) {
+            insert_token(value);
+            checkTokenLimit();
+        });
+    }
+
+    // Initialization is done
+    if($.isFunction(settings.onReady)) {
+        settings.onReady.call();
+    }
+
+    //
+    // Public functions
+    //
+
+    this.clear = function() {
+        token_list.children("li").each(function() {
+            if ($(this).children("input").length === 0) {
+                delete_token($(this));
+            }
+        });
+    }
+
+    this.add = function(item) {
+        add_token(item);
+    }
+
+    this.remove = function(item) {
+        token_list.children("li").each(function() {
+            if ($(this).children("input").length === 0) {
+                var currToken = $(this).data("tokeninput");
+                var match = true;
+                for (var prop in item) {
+                    if (item[prop] !== currToken[prop]) {
+                        match = false;
+                        break;
+                    }
+                }
+                if (match) {
+                    delete_token($(this));
+                }
+            }
+        });
+    }
+    
+    this.getTokens = function() {
+   		return saved_tokens;
+   	}
+
+    //
+    // Private functions
+    //
+
+    function checkTokenLimit() {
+        if(settings.tokenLimit !== null && token_count >= settings.tokenLimit) {
+            input_box.hide();
+            hide_dropdown();
+            return;
+        }
+    }
+
+    function resize_input() {
+        if(input_val === (input_val = input_box.val())) {return;}
+
+        // Enter new content into resizer and resize input accordingly
+        var escaped = input_val.replace(/&/g, '&amp;').replace(/\s/g,' ').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+        input_resizer.html(escaped);
+        input_box.width(input_resizer.width() + 30);
+    }
+
+    function is_printable_character(keycode) {
+        return ((keycode >= 48 && keycode <= 90) ||     // 0-1a-z
+                (keycode >= 96 && keycode <= 111) ||    // numpad 0-9 + - / * .
+                (keycode >= 186 && keycode <= 192) ||   // ; = , - . / ^
+                (keycode >= 219 && keycode <= 222));    // ( \ ) '
+    }
+
+    // Inner function to a token to the list
+    function insert_token(item) {
+        var this_token = settings.tokenFormatter(item);
+        this_token = $(this_token)
+          .addClass(settings.classes.token)
+          .insertBefore(input_token);
+
+        // The 'delete token' button
+        $("<span>" + settings.deleteText + "</span>")
+            .addClass(settings.classes.tokenDelete)
+            .appendTo(this_token)
+            .click(function () {
+                delete_token($(this).parent());
+                hidden_input.change();
+                return false;
+            });
+
+        // Store data on the token
+        var token_data = {"id": item.id};
+        token_data[settings.propertyToSearch] = item[settings.propertyToSearch];
+        $.data(this_token.get(0), "tokeninput", item);
+
+        // Save this token for duplicate checking
+        saved_tokens = saved_tokens.slice(0,selected_token_index).concat([token_data]).concat(saved_tokens.slice(selected_token_index));
+        selected_token_index++;
+
+        // Update the hidden input
+        update_hidden_input(saved_tokens, hidden_input);
+
+        token_count += 1;
+
+        // Check the token limit
+        if(settings.tokenLimit !== null && token_count >= settings.tokenLimit) {
+            input_box.hide();
+            hide_dropdown();
+        }
+
+        return this_token;
+    }
+
+    // Add a token to the token list based on user input
+    function add_token (item) {
+        var callback = settings.onAdd;
+
+        // See if the token already exists and select it if we don't want duplicates
+        if(token_count > 0 && settings.preventDuplicates) {
+            var found_existing_token = null;
+            token_list.children().each(function () {
+                var existing_token = $(this);
+                var existing_data = $.data(existing_token.get(0), "tokeninput");
+                if(existing_data && existing_data.id === item.id) {
+                    found_existing_token = existing_token;
+                    return false;
+                }
+            });
+
+            if(found_existing_token) {
+                select_token(found_existing_token);
+                input_token.insertAfter(found_existing_token);
+                input_box.focus();
+                return;
+            }
+        }
+
+        // Insert the new tokens
+        if(settings.tokenLimit == null || token_count < settings.tokenLimit) {
+            insert_token(item);
+            checkTokenLimit();
+        }
+
+        // Clear input box
+        input_box.val("");
+
+        // Don't show the help dropdown, they've got the idea
+        hide_dropdown();
+
+        // Execute the onAdd callback if defined
+        if($.isFunction(callback)) {
+            callback.call(hidden_input,item);
+        }
+    }
+
+    // Select a token in the token list
+    function select_token (token) {
+        token.addClass(settings.classes.selectedToken);
+        selected_token = token.get(0);
+
+        // Hide input box
+        input_box.val("");
+
+        // Hide dropdown if it is visible (eg if we clicked to select token)
+        hide_dropdown();
+    }
+
+    // Deselect a token in the token list
+    function deselect_token (token, position) {
+        token.removeClass(settings.classes.selectedToken);
+        selected_token = null;
+
+        if(position === POSITION.BEFORE) {
+            input_token.insertBefore(token);
+            selected_token_index--;
+        } else if(position === POSITION.AFTER) {
+            input_token.insertAfter(token);
+            selected_token_index++;
+        } else {
+            input_token.appendTo(token_list);
+            selected_token_index = token_count;
+        }
+
+        // Show the input box and give it focus again
+        input_box.focus();
+    }
+
+    // Toggle selection of a token in the token list
+    function toggle_select_token(token) {
+        var previous_selected_token = selected_token;
+
+        if(selected_token) {
+            deselect_token($(selected_token), POSITION.END);
+        }
+
+        if(previous_selected_token === token.get(0)) {
+            deselect_token(token, POSITION.END);
+        } else {
+            select_token(token);
+        }
+    }
+
+    // Delete a token from the token list
+    function delete_token (token) {
+        // Remove the id from the saved list
+        var token_data = $.data(token.get(0), "tokeninput");
+        var callback = settings.onDelete;
+
+        var index = token.prevAll().length;
+        if(index > selected_token_index) index--;
+
+        // Delete the token
+        token.remove();
+        selected_token = null;
+
+        // Show the input box and give it focus again
+        input_box.focus();
+
+        // Remove this token from the saved list
+        saved_tokens = saved_tokens.slice(0,index).concat(saved_tokens.slice(index+1));
+        if(index < selected_token_index) selected_token_index--;
+
+        // Update the hidden input
+        update_hidden_input(saved_tokens, hidden_input);
+
+        token_count -= 1;
+
+        if(settings.tokenLimit !== null) {
+            input_box
+                .show()
+                .val("")
+                .focus();
+        }
+
+        // Execute the onDelete callback if defined
+        if($.isFunction(callback)) {
+            callback.call(hidden_input,token_data);
+        }
+    }
+
+    // Update the hidden input box value
+    function update_hidden_input(saved_tokens, hidden_input) {
+        var token_values = $.map(saved_tokens, function (el) {
+            return el[settings.tokenValue];
+        });
+        hidden_input.val(token_values.join(settings.tokenDelimiter));
+
+    }
+
+    // Hide and clear the results dropdown
+    function hide_dropdown () {
+        dropdown.hide().empty();
+        selected_dropdown_item = null;
+    }
+
+    function show_dropdown() {
+        dropdown
+            .css({
+                position: "absolute",
+                top: $(token_list).offset().top + $(token_list).outerHeight(),
+                left: $(token_list).offset().left,
+                zindex: 999
+            })
+            .show();
+    }
+
+    function show_dropdown_searching () {
+        if(settings.searchingText) {
+            dropdown.html("<p>"+settings.searchingText+"</p>");
+            show_dropdown();
+        }
+    }
+
+    function show_dropdown_hint () {
+        if(settings.hintText) {
+            dropdown.html("<p>"+settings.hintText+"</p>");
+            show_dropdown();
+        }
+    }
+
+    // Highlight the query part of the search term
+    function highlight_term(value, term) {
+        return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<b>$1</b>");
+    }
+    
+    function find_value_and_highlight_term(template, value, term) {
+        return template.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + value + ")(?![^<>]*>)(?![^&;]+;)", "g"), highlight_term(value, term));
+    }
+
+    // Populate the results dropdown with some results
+    function populate_dropdown (query, results) {
+        if(results && results.length) {
+            dropdown.empty();
+            var dropdown_ul = $("<ul>")
+                .appendTo(dropdown)
+                .mouseover(function (event) {
+                    select_dropdown_item($(event.target).closest("li"));
+                })
+                .mousedown(function (event) {
+                    add_token($(event.target).closest("li").data("tokeninput"));
+                    hidden_input.change();
+                    return false;
+                })
+                .hide();
+
+            $.each(results, function(index, value) {
+                var this_li = settings.resultsFormatter(value);
+                
+                this_li = find_value_and_highlight_term(this_li ,value[settings.propertyToSearch], query);            
+                
+                this_li = $(this_li).appendTo(dropdown_ul);
+                
+                if(index % 2) {
+                    this_li.addClass(settings.classes.dropdownItem);
+                } else {
+                    this_li.addClass(settings.classes.dropdownItem2);
+                }
+
+                if(index === 0) {
+                    select_dropdown_item(this_li);
+                }
+
+                $.data(this_li.get(0), "tokeninput", value);
+            });
+
+            show_dropdown();
+
+            if(settings.animateDropdown) {
+                dropdown_ul.slideDown("fast");
+            } else {
+                dropdown_ul.show();
+            }
+        } else {
+            if(settings.noResultsText) {
+                dropdown.html("<p>"+settings.noResultsText+"</p>");
+                show_dropdown();
+            }
+        }
+    }
+
+    // Highlight an item in the results dropdown
+    function select_dropdown_item (item) {
+        if(item) {
+            if(selected_dropdown_item) {
+                deselect_dropdown_item($(selected_dropdown_item));
+            }
+
+            item.addClass(settings.classes.selectedDropdownItem);
+            selected_dropdown_item = item.get(0);
+        }
+    }
+
+    // Remove highlighting from an item in the results dropdown
+    function deselect_dropdown_item (item) {
+        item.removeClass(settings.classes.selectedDropdownItem);
+        selected_dropdown_item = null;
+    }
+
+    // Do a search and show the "searching" dropdown if the input is longer
+    // than settings.minChars
+    function do_search() {
+        var query = input_box.val().toLowerCase();
+
+        if(query && query.length) {
+            if(selected_token) {
+                deselect_token($(selected_token), POSITION.AFTER);
+            }
+
+            if(query.length >= settings.minChars) {
+                show_dropdown_searching();
+                clearTimeout(timeout);
+
+                timeout = setTimeout(function(){
+                    run_search(query);
+                }, settings.searchDelay);
+            } else {
+                hide_dropdown();
+            }
+        }
+    }
+
+    // Do the actual search
+    function run_search(query) {
+        var cache_key = query + computeURL();
+        var cached_results = cache.get(cache_key);
+        if(cached_results) {
+            populate_dropdown(query, cached_results);
+        } else {
+            // Are we doing an ajax search or local data search?
+            if(settings.url) {
+                var url = computeURL();
+                // Extract exisiting get params
+                var ajax_params = {};
+                ajax_params.data = {};
+                if(url.indexOf("?") > -1) {
+                    var parts = url.split("?");
+                    ajax_params.url = parts[0];
+
+                    var param_array = parts[1].split("&");
+                    $.each(param_array, function (index, value) {
+                        var kv = value.split("=");
+                        ajax_params.data[kv[0]] = kv[1];
+                    });
+                } else {
+                    ajax_params.url = url;
+                }
+
+                // Prepare the request
+                ajax_params.data[settings.queryParam] = query;
+                ajax_params.type = settings.method;
+                ajax_params.dataType = settings.contentType;
+                if(settings.crossDomain) {
+                    ajax_params.dataType = "jsonp";
+                }
+
+                // Attach the success callback
+                ajax_params.success = function(results) {
+                  if($.isFunction(settings.onResult)) {
+                      results = settings.onResult.call(hidden_input, results);
+                  }
+                  cache.add(cache_key, settings.jsonContainer ? results[settings.jsonContainer] : results);
+
+                  // only populate the dropdown if the results are associated with the active search query
+                  if(input_box.val().toLowerCase() === query) {
+                      populate_dropdown(query, settings.jsonContainer ? results[settings.jsonContainer] : results);
+                  }
+                };
+
+                // Make the request
+                $.ajax(ajax_params);
+            } else if(settings.local_data) {
+                // Do the search through local data
+                var results = $.grep(settings.local_data, function (row) {
+                    return row[settings.propertyToSearch].toLowerCase().indexOf(query.toLowerCase()) > -1;
+                });
+
+                if($.isFunction(settings.onResult)) {
+                    results = settings.onResult.call(hidden_input, results);
+                }
+                cache.add(cache_key, results);
+                populate_dropdown(query, results);
+            }
+        }
+    }
+
+    // compute the dynamic URL
+    function computeURL() {
+        var url = settings.url;
+        if(typeof settings.url == 'function') {
+            url = settings.url.call();
+        }
+        return url;
+    }
+};
+
+// Really basic cache for the results
+$.TokenList.Cache = function (options) {
+    var settings = $.extend({
+        max_size: 500
+    }, options);
+
+    var data = {};
+    var size = 0;
+
+    var flush = function () {
+        data = {};
+        size = 0;
+    };
+
+    this.add = function (query, results) {
+        if(size > settings.max_size) {
+            flush();
+        }
+
+        if(!data[query]) {
+            size += 1;
+        }
+
+        data[query] = results;
+    };
+
+    this.get = function (query) {
+        return data[query];
+    };
+};
+}(jQuery));