Segmentation.js

/*!
 * Piwik - Web Analytics
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

Segmentation = (function($) {

    var segmentation = function segmentation(config) {
        if (!config.target) {
            throw new Error("target property must be set in config to segment editor control element");
        }

        var self = this;

        self.currentSegmentStr = "";
        self.segmentAccess = "read";
        self.availableSegments = [];

        for (var item in config) {
            self[item] = config[item];
        }

        self.editorTemplate = self.editorTemplate.detach();

        self.timer = ""; // variable for further use in timing events
        self.searchAllowed = true;

        self.availableMatches = [];
        self.availableMatches["metric"] = [];
        self.availableMatches["metric"]["=="] = self.translations['General_OperationEquals'];
        self.availableMatches["metric"]["!="] = self.translations['General_OperationNotEquals'];
        self.availableMatches["metric"]["<="] = self.translations['General_OperationAtMost'];
        self.availableMatches["metric"][">="] = self.translations['General_OperationAtLeast'];
        self.availableMatches["metric"]["<"] = self.translations['General_OperationLessThan'];
        self.availableMatches["metric"][">"] = self.translations['General_OperationGreaterThan'];
        
        self.availableMatches["dimension"] = [];
        self.availableMatches["dimension"]["=="] = self.translations['General_OperationIs'];
        self.availableMatches["dimension"]["!="] = self.translations['General_OperationIsNot'];
        self.availableMatches["dimension"]["=@"] = self.translations['General_OperationContains'];
        self.availableMatches["dimension"]["!@"] = self.translations['General_OperationDoesNotContain'];

        segmentation.prototype.getSegment = function(){
            var self = this;
            if($.browser.mozilla) {
                return self.currentSegmentStr;
            }
            return decodeURIComponent(self.currentSegmentStr);
        };

        segmentation.prototype.setSegment = function(segmentStr){
            if(!$.browser.mozilla) {
                segmentStr = encodeURIComponent(segmentStr);
            }
            this.currentSegmentStr = segmentStr;
        };

        segmentation.prototype.shortenSegmentName = function(name, length){

            if(typeof length === "undefined") length = 16;
            if(typeof name === "undefined") name = "";
            var i;
            
            if(name.length > length)
            {
                for(i = length; i > 0; i--){
                    if(name[i] === " "){
                        break;
                    }
                }
                if(i == 0){ 
                    i = length-3;
                }
                
                return name.slice(0,i)+"...";
            }
            return name;
        };

        segmentation.prototype.markCurrentSegment = function(){
            var current = this.getSegment();

            var segmentationTitle = $(this.content).find(".segmentationTitle");
            if( current != "")
            {
                var selector = 'div.segmentList ul li[data-definition="'+current+'"]';
                var foundItems = $(selector, this.target);
                var title = $('<strong></strong>');
                if( foundItems.length > 0) {
                    var name = $(foundItems).first().find("span.segname").text();
                    title.text(name);
                } else {
                    title.text("Custom Segment");
                }
                segmentationTitle.html(title);
            }
            else {
                $(this.content).find(".segmentationTitle").text(this.translations['SegmentEditor_DefaultAllVisits']);
            }
        };

        var getAndDiv = function(){
            if(typeof andDiv === "undefined"){
                var andDiv = self.editorTemplate.find("> div.segment-and").clone();
            }
            return andDiv.clone();
        };

        var getOrDiv = function(){
            if(typeof orDiv === "undefined"){
                var orDiv = self.editorTemplate.find("> div.segment-or").clone();
            }
            return orDiv.clone();
        };

        var getMockedInputSet = function(){
            if(typeof mockedInputSet === "undefined"){
                var mockedInputSet = self.editorTemplate.find("div.segment-row-inputs").clone();
            }
            return mockedInputSet.clone();
        };

        var getMockedInputRowHtml = function(){
            if(typeof mockedInputRow === "undefined"){
                var mockedInputRow = '<div class="segment-row"><a class="segment-close" href="#"></a><div class="segment-row-inputs">'+getMockedInputSet().html()+'</div></div>';
            }
            return mockedInputRow;
        };

        var getMockedFormRow = function(){
            if(typeof mockedFormRow === "undefined")
            {
                var mockedFormRow = self.editorTemplate.find("div.segment-rows").clone();
                $(mockedFormRow).find(".segment-row").append(getMockedInputSet()).after(getAddOrBlockButtonHtml).after(getOrDiv());
            }
            return mockedFormRow.clone();
        };

        var getInitialStateRowsHtml = function(){
            if(typeof initialStateRows === "undefined"){
                var content = self.editorTemplate.find("div.initial-state-rows").html();
                var initialStateRows = $(content).clone();
            }
            return initialStateRows;
        };

        var revokeInitialStateRows = function(){
            $(self.form).find(".segment-add-row").remove();
            $(self.form).find(".segment-and").remove();
        };

        var appendSpecifiedRowHtml= function(metric) {
            $(self.form).find(".segment-content > h3").after(getMockedFormRow());
            $(self.form).find(".segment-content").append(getAndDiv());
            $(self.form).find(".segment-content").append(getAddNewBlockButtonHtml());
            doDragDropBindings();
            $(self.form).find(".metricList").val(metric).trigger("change");
        };

        var appendComplexRowHtml = function(block){
            var key;
            var newRow = getMockedFormRow();

            var x = $(newRow).find(".metricMatchBlock select");
            $(newRow).find(".metricListBlock select").val(block[0].metric);
            $(newRow).find(".metricMatchBlock select").val(block[0].match);
            $(newRow).find(".metricValueBlock input").val(block[0].value);

            if(block.length > 1) {
                $(newRow).find(".segment-add-or").remove();
                for(key = 1; key < block.length;key++) {
                    var newSubRow = $(getMockedInputRowHtml()).clone();
                    $(newSubRow).find(".metricListBlock select").val(block[key].metric);
                    $(newSubRow).find(".metricMatchBlock select").val(block[key].match);
                    $(newSubRow).find(".metricValueBlock input").val(block[key].value);
                    $(newRow).append(newSubRow).append(getOrDiv());
                }
                $(newRow).append(getAddOrBlockButtonHtml());
            }
            $(self.form).find(".segment-content").append(newRow).append(getAndDiv());
        };

        var applyInitialStateModification = function(){
            $(self.form).find(".segment-add-row").remove();
            $(self.form).find(".segment-content").append(getInitialStateRowsHtml());
            doDragDropBindings();
        };

        var getSegmentFromId = function (id) {
            if(self.availableSegments.length > 0) {
                for(var i = 0; i < self.availableSegments.length; i++)
                {
                    segment = self.availableSegments[i];
                    if(segment.idsegment == id) {
                        return segment;
                    }
                }
            }
            return false;
        };

        var getListHtml = function() {
            var html = self.editorTemplate.find("> .listHtml").clone();
            var segment, injClass;

            var listHtml = '<li data-idsegment="" ' +
                            (self.currentSegmentStr == "" ? " class='segmentSelected' " : "")
                            + ' data-definition=""><span class="segname">' + self.translations['SegmentEditor_DefaultAllVisits']
                            + ' ' + self.translations['General_DefaultAppended']
                            + '</span></li> ';
            if(self.availableSegments.length > 0) {
                for(var i = 0; i < self.availableSegments.length; i++)
                {
                    segment = self.availableSegments[i];
                    injClass = "";
                    if( segment.definition == self.currentSegmentStr){
                        injClass = 'class="segmentSelected"';
                    }
                    listHtml += '<li data-idsegment="'+segment.idsegment+'" data-definition="'+ (segment.definition).replace(/"/g, '&quot;') +'" '
                                + injClass +' title="'+segment.name+'"><span class="segname">'
                                + self.shortenSegmentName(segment.name)+'</span>';
                    if(self.segmentAccess == "write") {
                        listHtml += '<span class="editSegment">['+ self.translations['General_Edit'].toLocaleLowerCase() +']</span>';
                    }
                    listHtml += '</li>';
                }
                $(html).find(".segmentList > ul").append(listHtml);
                if(self.segmentAccess === "write"){
                    $(html).find(".add_new_segment").html(self.translations['SegmentEditor_AddNewSegment']);
                }
                else {
                    $(html).find(".add_new_segment").hide();
                }
            }
            else
            {
                $(html).find(".segmentList > ul").append(listHtml);
            }
            return html;
        };

        var getFormHtml = function() {
            var html = self.editorTemplate.find("> .segment-element").clone();
            // set left margin to center form
            var segmentsDropdown = $(html).find(".available_segments_select");
            var segment, newOption;
            newOption = '<option data-idsegment="" data-definition="" title="'
                        + self.translations['SegmentEditor_AddNewSegment']
                        + '">' + self.translations['SegmentEditor_AddNewSegment']
                        + '</option>';
            segmentsDropdown.append(newOption);
            for(var i = 0; i < self.availableSegments.length; i++)
            {
                segment = self.availableSegments[i];
                newOption = '<option data-idsegment="'+segment.idsegment+'" data-definition="'+(segment.definition).replace(/"/g, '&quot;')+'" title="'+segment.name+'">'+self.shortenSegmentName(segment.name)+'</option>';
                segmentsDropdown.append(newOption);
            }
            $(html).find(".segment-content > h3").after(getInitialStateRowsHtml()).show();
            return html;
        };

        var doListBindings = function()
        {
            self.jscroll = self.content.find(".segmentList").jScrollPane({
                autoReinitialise: true,
                showArrows:true
            }).data().jsp;

            self.content.find(".add_new_segment").unbind().on("click", function(event){
                event.stopPropagation();
                closeAllOpenLists();
                addForm("new");
                doDragDropBindings();
            });

        };

        var closeAllOpenLists = function() {
            $(".segmentationContainer", self.target).each(function() {
                if($(this).closest('.segmentEditorPanel').hasClass("visible"))
                    $(this).trigger("click");
            });
        };


        var findAndExplodeByMatch = function(metric){
            var matches = ["==" , "!=" , "<=", ">=", "=@" , "!@","<",">"];
            var newMetric = {};
            var minPos = metric.length;
            var match, index;
            var singleChar = false;

            for(var key=0; key < matches.length; key++)
            {
                match = matches[key];
                index = metric.indexOf(match);
                if( index != -1){
                    if(index < minPos){
                        minPos = index;
                        if(match.length == 1){
                            singleChar = true;
                        }
                    }
                }
            }

            if(minPos < metric.length){
                // sth found - explode
                if(singleChar == true){
                    newMetric.metric = metric.substr(0,minPos);
                    newMetric.match = metric.substr(minPos,1);
                    newMetric.value = metric.substr(minPos+1);
                } else {
                    newMetric.metric = metric.substr(0,minPos);
                    newMetric.match = metric.substr(minPos,2);
                    newMetric.value = metric.substr(minPos+2);
                }
                // if value is only "" -> change to empty string
                if(newMetric.value == '""')
                {
                    newMetric.value = "";
                }
            }

            newMetric.value = decodeURIComponent(newMetric.value);
            return newMetric;
        };

        var parseSegmentStr = function(segmentStr)
        {
            var blocks;
            blocks = segmentStr.split(";");
            for(var key in blocks){
                blocks[key] = blocks[key].split(",");
                for(var innerkey = 0; innerkey < blocks[key].length; innerkey++){
                    blocks[key][innerkey] = findAndExplodeByMatch(blocks[key][innerkey]);
                }
            }
            return blocks;
        };

        var openEditForm = function(segment){
            addForm("edit", segment);

            $(self.form).find(".segment-content > h3 > span").text(segment.name);
            $(self.form).find('.available_segments_select > option[data-idsegment="'+segment.idsegment+'"]').prop("selected",true);

            $(self.form).find('.available_segments a.dropList').html(self.shortenSegmentName(segment.name, 16));

            if(segment.definition != ""){
                revokeInitialStateRows();
                var blocks = parseSegmentStr(segment.definition);
                for(var key in blocks){
                    appendComplexRowHtml(blocks[key]);
                }
                $(self.form).find(".segment-content").append(getAddNewBlockButtonHtml());
            }
            $(self.form).find(".metricList").each( function(){
                $(this).trigger("change", true);
            });
            doDragDropBindings();
        };

        var bindListEvents = function(){
            $(self.content).off("click").on("click", function(event){
                // hide all other modals connected with this widget
                if(self.content.closest('.segmentEditorPanel').hasClass("visible")){
                    if($(event.target).hasClass("jspDrag") === true)
                    {
                        event.stopPropagation();
                    }
                    else{
                        self.jscroll.destroy();
                        self.target.closest('.segmentEditorPanel').removeClass('visible');
                    }
                }
                else{
                    // for each visible segmentationContainer -> trigger click event to close and kill scrollpane - very important !
                    closeAllOpenLists();
                    self.target.closest('.segmentEditorPanel').addClass('visible');
                    doListBindings();
                }
            });

            $(self.content).off("click",".editSegment").on("click", ".editSegment", function(e){
                $(this).closest(".segmentationContainer").trigger("click");
                var target = $(this).parent("li");

                openEditFormGivenSegment(target);
                e.stopPropagation();
                e.preventDefault();
            });

            $(self.content).off("click", ".segmentList li").on("click", ".segmentList li", function(e){
                if($(e.currentTarget).hasClass("grayed") !== true){
                    var segment = {};
                    segment.idsegment = $(this).attr("data-idsegment");
                    segment.definition = $(this).data("definition");
                    segment.name = $(this).attr("title");

                    self.setSegment(segment.definition);
                    self.markCurrentSegment();
                    self.segmentSelectMethod( segment.definition );
                    toggleLoadingMessage( segment.definition.length );
                }
            });
        };

        var bindChangeMetricSelectEvent = function()
        {
            $(".segment-content", self.target)
                .off("change","select.metricList")
                .on("change", "select.metricList", function(e, persist){
                    if(typeof persist === "undefined"){
                        persist = false;
                    }
                    alterMatchesList(this, persist);

                    doDragDropBindings();

                    autoSuggestValues(this, persist);
                });
        };

        // Request auto-suggest values
        var autoSuggestValues = function(select, persist) {
            var type = $(select).find("option:selected").attr("value");
            if(!persist) {
                var parents = $(select).parents('.segment-row');
                var loadingElement = parents.find(".segment-loading");
                loadingElement.show();
                var inputElement = parents.find(".metricValueBlock input");
                var segmentName = $('option:selected',select).attr('value');

                var ajaxHandler = new ajaxHelper();
                ajaxHandler.addParams({
                    module: 'API',
                    format: 'json',
                    method: 'API.getSuggestedValuesForSegment',
                    segmentName: segmentName
                }, 'GET');
                ajaxHandler.setCallback(function(response) {
                    loadingElement.hide();

                    inputElement.autocomplete({
                        source: response,
                        minLength: 0,
                        select: function(event, ui){
                            event.preventDefault();
                            $(inputElement).val(ui.item.value);
                        }
                    });

                    inputElement.click(function(e){
                        inputElement.autocomplete('search', $(inputElement).val());
                    });
                });
                ajaxHandler.send();
            }
        };

        var alterMatchesList = function(select, persist){
            var oldMatch;
            var type = $(select).find("option:selected").attr("data-type");
            var matchSelector = $(select).parents(".segment-input").siblings(".metricMatchBlock").find("select");
            if(persist === true){
                oldMatch = matchSelector.find("option:selected").val();
            } else {
                oldMatch = "";
            }

            if(type === "dimension" || type === "metric"){
                matchSelector.empty();
                var optionsHtml = "";
                for(var key in self.availableMatches[type]){
                    optionsHtml += '<option value="'+key+'">'+self.availableMatches[type][key]+'</option>';
                }
            }

            matchSelector.append(optionsHtml);
            matchSelector.val(oldMatch);
        };

        var getAddNewBlockButtonHtml = function()
        {
            if(typeof addNewBlockButton === "undefined")
            {
                var addNewBlockButton = self.editorTemplate.find("> div.segment-add-row").clone();
            }
            return addNewBlockButton.clone();

        };

        var getAddOrBlockButtonHtml = function(){
            if(typeof addOrBlockButton === "undefined") {
                var addOrBlockButton = self.editorTemplate.find("div.segment-add-or").clone();
            }
            return addOrBlockButton.clone();
        };

        var placeSegmentationFormControls = function(){
            doDragDropBindings();
            $(self.form).find(".scrollable").jScrollPane({
                showArrows: true,
                autoReinitialise: true,
                verticalArrowPositions: 'os',
                horizontalArrowPositions: 'os'
            });
        };

        function openEditFormGivenSegment(option) {
            var segment = {};
            segment.idsegment = option.attr("data-idsegment");

            var segmentExtra = getSegmentFromId(segment.idsegment);
            for(var item in segmentExtra)
            {
                segment[item] = segmentExtra[item];
            }

            segment.name = option.attr("title");

            segment.definition = option.data("definition");

            openEditForm(segment);
        }

        var bindFormEvents = function(){

            $(self.form).on("click", "a:not(.crowdfundingLink)", function(e){
                e.preventDefault();
            });

            $(self.form).off("click", "a.editSegmentName").on("click", "a.editSegmentName", function(e){
                var oldName = $(e.currentTarget).parents("h3").find("span").text();
                $(e.currentTarget).parents("h3").find("span").hide();
                $(e.currentTarget).hide();
                $(e.currentTarget).before('<input class="edit_segment_name" type="text"/>');
                $(e.currentTarget).siblings(".edit_segment_name").focus().val(oldName);
            });


            $(self.form).off("click", ".segmentName").on("click", ".segmentName", function(e) {
                $(self.form).find("a.editSegmentName").trigger('click');
            });

            $(self.form).off("blur", "input.edit_segment_name").on("blur", "input.edit_segment_name", function(e){
                var newName = $(this).val();
                if(newName.trim() != '') {
                    $(e.currentTarget).parents("h3").find("span").text(newName).show();
                    $(self.form).find("a.editSegmentName").show();
                    $(this).remove();
                }
            });

            $(self.form).on("click", '.segment-element', function(event) {
                event.stopPropagation();
                event.preventDefault();
            });

            $(self.form).find(".available_segments_select").bind("change", function(e){
                var option = $(e.currentTarget).find('option:selected');
                openEditFormGivenSegment(option);
            });

            // attach event that shows/hides child elements of each metric category
            $(self.form).find(".segment-nav > div > ul > li > a").each( function(){
                $(this).on("click", function(e){
                    $(e.currentTarget).siblings("ul").toggle();
                });
            });

            $(self.form).off("click", ".custom_select_search a").on("click", ".custom_select_search a", function(e){
                $(self.form).find(".segmentSearch").val("").trigger("keyup").val(self.translations['General_Search']);
            });

            // attach event that will clear search input upon focus if its content is default
            $(self.form).find(".segmentSearch").on("focus", function(e){
                var search = $(e.currentTarget).val();
                if(search == self.translations['General_Search'])
                    $(e.currentTarget).val("");
            });

            // attach event that will set search input value upon blur if its content is not null
            $(self.form).find(".segmentSearch").on("blur", function(e){
                var search = $(e.currentTarget).val();
                if(search == ""){
                    clearSearchMetricHighlight();
                    $(e.currentTarget).val(self.translations['General_Search']);
                }
            });

            // bind search action triggering - only when input text is longer than 2 chars
            $(self.form).find(".segmentSearch").on("keyup", function(e){
                var search = $(e.currentTarget).val();
                if( search.length >= 2)
                {
                    clearTimeout(self.timer);
                    self.searchAllowed = true;
                    self.timer = setTimeout(function(){
                        searchSegments(search);
                    }, 500);
                }
                else{
                    self.searchAllowed = false;
                    clearSearchMetricHighlight();
                }
            });

            $(self.form).on("click", ".delete", function(){
                var segmentName = $(self.form).find(".segment-content > h3 > span").text();
                var segmentId = $(self.form).find(".available_segments_select option:selected").attr("data-idsegment");
                var params = {
                    "idsegment" : segmentId
                };
                $('.segment-delete-confirm', self.target).find('#name').text( segmentName );
                if(segmentId != ""){
                    piwikHelper.modalConfirm( '.segment-delete-confirm', {
                        yes: function(){
                            self.deleteMethod(params);
                        }
                    });
                }
            });

            $(self.form).on("click", "a.close", function(e){
                $(".segmentListContainer", self.target).show();
                self.form.unbind().remove();
            });

            $("body").on("keyup", function(e){
                if(e.keyCode == "27"){
                    $(".segmentListContainer", self.target).show();
                    $(self.form).remove();
                }
            });

            bindChangeMetricSelectEvent();

            placeSegmentationFormControls();
        };

        var doDragDropBindings = function(){
            $(self.form).find(".segment-nav div > ul > li > ul > li").sortable({
                cursor: 'move',
                revert: 10,
                revertDuration: 0,
                snap: false,
                helper: 'clone',
                appendTo: 'body'
            });

            $(self.form).find(".metricListBlock").droppable({
                hoverClass: "hovered",
                drop: function( event, ui ) {
                    $(this).find("select").val(ui.draggable.parent().attr("data-metric")).trigger("change");
                }
            });

            $(self.form).find(".segment-add-row > div").droppable({
                hoverClass: "hovered",
                drop: function( event, ui ) {
                    $(this).find("a").trigger("click", [ui.draggable.parent().attr("data-metric")]);
                    if($(this).find("a > span").length == 0){
                        revokeInitialStateRows();
                        appendSpecifiedRowHtml([ui.draggable.parent().attr("data-metric")]);
                    }
                }
            });

            $(self.form).find(".segment-add-or > div").droppable({
                hoverClass: "hovered",
                drop: function( event, ui ) {
                    $(this).find("a").trigger("click", [ui.draggable.parent().attr("data-metric")]);
                }
            });
        };

        var searchSegments = function(search){
            // pre-process search string to normalized form
            search = normalizeSearchString(search);

            // ---
            // clear all previous search highlights and hide all categories
            // to allow further showing only matching ones, while others remain invisible
            clearSearchMetricHighlight();
            $(self.form).find('.segment-nav div > ul > li').hide();
            var curStr = "";
            var curMetric = "";

            // 1 - do most obvious selection -> mark whole categories matching search string
            // also expand whole category
            $(self.form).find('.segment-nav div > ul > li').each( function(){
                curStr = normalizeSearchString($(this).find("a.metric_category").text());
                    if(curStr.indexOf(search) > -1) {
                        $(this).addClass("searchFound");
                        $(this).find("ul").show();
                        $(this).find("li").show();
                        $(this).show();
                    }
                }
           );

            // 2 - among all unselected categories find metrics which match and mark parent as search result
            $(self.form).find(".segment-nav div > ul > li:not(.searchFound)").each(function(){
                var parent = this;
                $(this).find("li").each( function(){
                    var curStr = normalizeSearchString($(this).text());
                    var curMetric = normalizeSearchString($(this).attr("data-metric"));
                    $(this).hide();
                    if(curStr.indexOf(search) > -1 || curMetric.indexOf(search) > -1){
                        $(this).show();
                        $(parent).find("ul").show();
                        $(parent).addClass("searchFound").show();
                    }
                });
            });

            if( $(self.form).find("li.searchFound").length == 0)
            {
                $(self.form).find("div > ul").prepend('<li class="no_results"><a>'+self.translations['General_SearchNoResults']+'</a></li>').show();
            }
            // check if search allow flag was revoked - then clear all search results
            if(self.searchAllowed == false)
            {
                clearSearchMetricHighlight();
                self.searchAllowed = true;
            }

        };

        var clearSearchMetricHighlight = function(){
            $(self.form).find('.no_results').remove();
            $(self.form).find('.segment-nav div > ul > li').removeClass("searchFound").show();
            $(self.form).find('.segment-nav div > ul > li').removeClass("others").show();
            $(self.form).find('.segment-nav div > ul > li > ul > li').show();
            $(self.form).find('.segment-nav div > ul > li > ul').hide();
        };

        var normalizeSearchString = function(search){
            search = search.replace(/^\s+|\s+$/g, ''); // trim
            search = search.toLowerCase();
            // remove accents, swap ñ for n, etc
            var from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;";
            var to   = "aaaaeeeeiiiioooouuuunc------";
            for (var i=0, l=from.length ; i<l ; i++) {
                search = search.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
            }

            search = search.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
            .replace(/\s+/g, '_') // collapse whitespace and replace by underscore
            .replace(/-+/g, '-'); // collapse dashes
            return search;
        };

        var bindSegmentManipulationEvents = function(){
            // upon clicking - add new segment block, then bind 'x' action to newly added row
            $(self.form).on("click", ".segment-add-row a", function(event, data){
                $(self.form).find(".segment-and:last").after(getAndDiv()).after(getMockedFormRow());
                if(typeof data !== "undefined"){
                    $(self.form).find(".metricList:last").val(data);
                }
                $(self.form).find(".metricList:last").trigger('change');
                doDragDropBindings();
            });

            $(self.form).on("click", ".segment-add-row span", function(event, data){
                if(typeof data !== "undefined") {
                    $(self.form).find(".segment-and:last").after(getAndDiv()).after(getMockedFormRow());
                    $(self.form).find(".metricList:last").val(data).trigger('change');
                    doDragDropBindings();
                }
            });

            // add new OR block
            $(self.form).on("click", ".segment-add-or  a", function(event, data){
                $(event.currentTarget).parents(".segment-rows").find(".segment-or:last").after(getOrDiv()).after(getMockedInputRowHtml());
                if(typeof data !== "undefined"){
                    $(event.currentTarget).parents(".segment-rows").find(".metricList:last").val(data);
                }
                $(event.currentTarget).parents(".segment-rows").find(".metricList:last").trigger('change');
                doDragDropBindings();
            });

            $(self.form).on("click", ".segment-close",  function(e){
                var target = e.currentTarget;
                var rowCnt = $(target).parents(".segment-rows").find(".segment-row").length;
                var globalRowCnt = $(self.form).find(".segment-close").length;
                if(rowCnt > 1){
                    $(target).parents(".segment-row").next().remove();
                    $(target).parents(".segment-row").remove();
                }
                else if(rowCnt == 1){
                    $(target).parents(".segment-rows").next().remove();
                    $(target).parents(".segment-rows").remove();
                    if(globalRowCnt == 1){
                        applyInitialStateModification();
                    }
                }
            });
        };

        // Mode = 'new' or 'edit'
        var addForm = function(mode, segment){

            self.target.find(".segment-element:visible").unbind().remove();
            if(typeof self.form !== "undefined")
            {
                self.form.unbind().remove();
            }
            // remove any remaining forms

            self.form = getFormHtml();
            self.target.prepend(self.form);

            // if there's enough space to the left & not enough space to the right,
            // anchor the form to the right of the selector
            if (self.form.width() + self.target.offset().left > $(window).width()
                && self.form.width() < self.target.offset().left + self.target.width()
            ) {
                self.form.addClass('anchorRight');
            }

            bindFormEvents();
            bindSegmentManipulationEvents();

            if(mode == "edit") {
                $(self.form).find('.enable_all_users_select > option[value="'+segment.enable_all_users+'"]').prop("selected",true);
                $(self.form).find('.visible_to_website_select > option[value="'+segment.enable_only_idsite+'"]').prop("selected",true);
                $(self.form).find('.auto_archive_select > option[value="'+segment.auto_archive+'"]').prop("selected",true);

            }

            makeDropList(".enable_all_users" , ".enable_all_users_select");
            makeDropList(".visible_to_website" , ".visible_to_website_select");
            makeDropList(".auto_archive" , ".auto_archive_select");
            makeDropList(".available_segments" , ".available_segments_select");
            $(self.form).find(".saveAndApply").bind("click", function(e){
                e.preventDefault();
                parseFormAndSave();
            });

            $(self.form).find('.segment-footer').hover( function() {
                $('.segmentFooterNote', self.target).fadeIn();
            }, function() {
                $('.segmentFooterNote', self.target).fadeOut();
            });

            if(typeof mode !== "undefined" && mode == "new")
            {
                $(self.form).find(".editSegmentName").trigger('click');
            }
            $(".segmentListContainer", self.target).hide();

        };

        var parseForm = function(){
            var segmentStr = "";
            $(self.form).find(".segment-rows").each( function(){
                var subSegmentStr = "";

                $(this).find(".segment-row").each( function(){
                    if(subSegmentStr != ""){
                        subSegmentStr += ","; // OR operator
                    }
                    $(this).find(".segment-row-inputs").each( function(){
                        var metric = $(this).find(".metricList option:selected").val();
                        var match = $(this).find(".metricMatchBlock > select option:selected").val();
                        var value = $(this).find(".segment-input input").val();
                        subSegmentStr += metric + match + encodeURIComponent(value);
                    });
                });
                if(segmentStr != "")
                {
                    segmentStr += ";"; // add AND operator between segment blocks
                }
                segmentStr += subSegmentStr;
            });
            return segmentStr
        };

        var parseFormAndSave = function(){
            var segmentName = $(self.form).find(".segment-content > h3 >span").text();
            var segmentStr = parseForm();
            var segmentId = $(self.form).find('.available_segments_select > option:selected').attr("data-idsegment");
            var user = $(self.form).find(".enable_all_users_select option:selected").val();
            var autoArchive = $(self.form).find(".auto_archive_select option:selected").val() || 0;
            var params = {
                "name": segmentName,
                "definition": segmentStr,
                "enabledAllUsers": user,
                "autoArchive": autoArchive,
                "idSite":  $(self.form).find(".visible_to_website_select option:selected").val()
            };

            // determine if save or update should be performed
            if(segmentId === ""){
                self.addMethod(params);
            }
            else{
                jQuery.extend(params, {
                    "idSegment": segmentId
                });
                self.updateMethod(params);
            }
        };

        var makeDropList = function(spanId, selectId){
            var select = $(self.form).find(selectId).hide();
            var dropList = $( '<a class="dropList dropdown">' )
            .insertAfter( select )
            .text( select.children(':selected').text() )
            .autocomplete({
                delay: 0,
                minLength: 0,
                appendTo: "body",
                source: function( request, response ) {
                    response( select.children( "option" ).map(function() {
                        var text = $( this ).text();
                        return {
                            label: text,
                            value: this.value,
                            option: this
                        };
                    }) );
                },
                select: function( event, ui ) {
                    event.preventDefault();
                    ui.item.option.selected = true;
                    // Mark original select>option
                    $(spanId + ' option[value="' + ui.item.value + '"]', self.editorTemplate).prop('selected', true);
                    dropList.text(ui.item.label);
                    $(self.form).find(selectId).trigger("change");
                }
            })
            .click(function() {
                // close all other droplists made by this form
                $("a.dropList").autocomplete("close");
                //                 close if already visible
                if ( $(this).autocomplete( "widget" ).is(":visible") ) {
                    $(this).autocomplete("close");
                    return;
                }
                // pass empty string as value to search for, displaying all results
                $(this).autocomplete( "search", "" );

            });
            $('body').on('mouseup',function(e){
                if(!$(e.target).parents(spanId).length && !$(e.target).is(spanId) && !$(e.target).parents(spanId).length
                    && !$(e.target).parents(".ui-autocomplete").length && !$(e.target).is(".ui-autocomplete") && !$(e.target).parents(".ui-autocomplete").length
                    ) {
                    dropList.autocomplete().autocomplete("close");
                }
            });
        };

        function toggleLoadingMessage(segmentIsSet) {
            if (segmentIsSet) {
                $('#ajaxLoadingDiv').find('.loadingSegment').show();
            } else {
                $('#ajaxLoadingDiv').find('.loadingSegment').hide();
            }
        }

        var initHtml = function() {
            if(typeof self.content !== "undefined"){
                self.content.unbind();
            }
            var html = getListHtml();

            if(typeof self.content !== "undefined"){
                self.content.html($(html).html());
            } else {
                self.target.append(html);
                self.content = self.target.find(".segmentationContainer");
            }

            // assign content to object attribute to make it easil accesible through all widget methods
            bindListEvents();
            self.markCurrentSegment();

            // Loading message
            var segmentIsSet = self.getSegment().length;
            toggleLoadingMessage(segmentIsSet);
        };
        initHtml();
    };

    return segmentation;
})(jQuery);


$(document).ready(function() {
    var exports = require('piwik/UI');
    var UIControl = exports.UIControl;

    /**
     * Sets up and handles events for the segment selector & editor control.