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/**
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* Angucomplete
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* Autocomplete directive for AngularJS
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* By Daryl Rowland
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*/
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angular.module('angucomplete', [] )
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.directive('angucomplete', function ($parse, $http, $sce, $timeout) {
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return {
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restrict: 'EA',
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scope: {
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"id": "@id",
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"placeholder": "@placeholder",
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"selectedObject": "=selectedobject",
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"url": "@url",
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"dataField": "@datafield",
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"titleField": "@titlefield",
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"descriptionField": "@descriptionfield",
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"imageField": "@imagefield",
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"imageUri": "@imageuri",
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"inputClass": "@inputclass",
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"userPause": "@pause",
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"localData": "=localdata",
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"searchFields": "@searchfields",
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"minLengthUser": "@minlength",
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"matchClass": "@matchclass"
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},
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template: '<div class="angucomplete-holder"><input id="{{id}}_value" ng-model="searchStr" type="text" placeholder="{{placeholder}}" class="{{inputClass}}" onmouseup="this.select();" ng-focus="resetHideResults()" ng-blur="hideResults()" /><div id="{{id}}_dropdown" class="angucomplete-dropdown" ng-if="showDropdown"><div class="angucomplete-searching" ng-show="searching">Searching...</div><div class="angucomplete-searching" ng-show="!searching && (!results || results.length == 0)">No results found</div><div class="angucomplete-row" ng-repeat="result in results" ng-mousedown="selectResult(result)" ng-mouseover="hoverRow()" ng-class="{\'angucomplete-selected-row\': $index == currentIndex}"><div ng-if="imageField" class="angucomplete-image-holder"><img ng-if="result.image && result.image != \'\'" ng-src="{{result.image}}" class="angucomplete-image"/><div ng-if="!result.image && result.image != \'\'" class="angucomplete-image-default"></div></div><div class="angucomplete-title" ng-if="matchClass" ng-bind-html="result.title"></div><div class="angucomplete-title" ng-if="!matchClass">{{ result.title }}</div><div ng-if="result.description && result.description != \'\'" class="angucomplete-description">{{result.description}}</div></div></div></div>',
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link: function($scope, elem, attrs) {
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$scope.lastSearchTerm = null;
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$scope.currentIndex = null;
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$scope.justChanged = false;
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$scope.searchTimer = null;
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$scope.hideTimer = null;
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$scope.searching = false;
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$scope.pause = 500;
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$scope.minLength = 3;
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$scope.searchStr = null;
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if ($scope.minLengthUser && $scope.minLengthUser != "") {
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$scope.minLength = $scope.minLengthUser;
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}
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if ($scope.userPause) {
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$scope.pause = $scope.userPause;
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}
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isNewSearchNeeded = function(newTerm, oldTerm) {
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return newTerm.length >= $scope.minLength && newTerm != oldTerm
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}
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$scope.processResults = function(responseData, str) {
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if (responseData && responseData.length > 0) {
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$scope.results = [];
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var titleFields = [];
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if ($scope.titleField && $scope.titleField != "") {
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titleFields = $scope.titleField.split(",");
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}
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for (var i = 0; i < responseData.length; i++) {
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// Get title variables
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var titleCode = [];
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for (var t = 0; t < titleFields.length; t++) {
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titleCode.push(responseData[i][titleFields[t]]);
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}
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var description = "";
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if ($scope.descriptionField) {
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description = responseData[i][$scope.descriptionField];
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}
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var imageUri = "";
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if ($scope.imageUri) {
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imageUri = $scope.imageUri;
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}
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var image = "";
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if ($scope.imageField) {
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image = imageUri + responseData[i][$scope.imageField];
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}
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var text = titleCode.join(' ');
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if ($scope.matchClass) {
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var re = new RegExp(str, 'i');
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var strPart = text.match(re)[0];
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text = $sce.trustAsHtml(text.replace(re, '<span class="'+ $scope.matchClass +'">'+ strPart +'</span>'));
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}
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var resultRow = {
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title: text,
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description: description,
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image: image,
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originalObject: responseData[i]
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}
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$scope.results[$scope.results.length] = resultRow;
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}
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} else {
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$scope.results = [];
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}
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}
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$scope.searchTimerComplete = function(str) {
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// Begin the search
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if (str.length >= $scope.minLength) {
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if ($scope.localData) {
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var searchFields = $scope.searchFields.split(",");
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var matches = [];
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for (var i = 0; i < $scope.localData.length; i++) {
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var match = false;
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for (var s = 0; s < searchFields.length; s++) {
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match = match || (typeof $scope.localData[i][searchFields[s]] === 'string' && typeof str === 'string' && $scope.localData[i][searchFields[s]].toLowerCase().indexOf(str.toLowerCase()) >= 0);
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}
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if (match) {
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matches[matches.length] = $scope.localData[i];
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}
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}
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$scope.searching = false;
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$scope.processResults(matches, str);
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} else {
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$http.get($scope.url + str, {}).
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success(function(responseData, status, headers, config) {
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$scope.searching = false;
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$scope.processResults((($scope.dataField) ? responseData[$scope.dataField] : responseData ), str);
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}).
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error(function(data, status, headers, config) {
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console.log("error");
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});
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}
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}
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}
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$scope.hideResults = function() {
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$scope.hideTimer = $timeout(function() {
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$scope.showDropdown = false;
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}, $scope.pause);
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};
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$scope.resetHideResults = function() {
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if($scope.hideTimer) {
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$timeout.cancel($scope.hideTimer);
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};
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};
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$scope.hoverRow = function(index) {
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$scope.currentIndex = index;
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}
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$scope.keyPressed = function(event) {
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if (!(event.which == 38 || event.which == 40 || event.which == 13)) {
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if (!$scope.searchStr || $scope.searchStr == "") {
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$scope.showDropdown = false;
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$scope.lastSearchTerm = null
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} else if (isNewSearchNeeded($scope.searchStr, $scope.lastSearchTerm)) {
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$scope.lastSearchTerm = $scope.searchStr
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$scope.showDropdown = true;
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$scope.currentIndex = -1;
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$scope.results = [];
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if ($scope.searchTimer) {
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$timeout.cancel($scope.searchTimer);
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}
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$scope.searching = true;
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$scope.searchTimer = $timeout(function() {
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$scope.searchTimerComplete($scope.searchStr);
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}, $scope.pause);
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}
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} else {
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event.preventDefault();
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}
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}
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$scope.selectResult = function(result) {
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if ($scope.matchClass) {
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result.title = result.title.toString().replace(/(<([^>]+)>)/ig, '');
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}
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$scope.searchStr = $scope.lastSearchTerm = result.title;
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$scope.selectedObject = result;
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$scope.showDropdown = false;
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$scope.results = [];
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//$scope.$apply();
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}
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var inputField = elem.find('input');
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inputField.on('keyup', $scope.keyPressed);
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elem.on("keyup", function (event) {
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if(event.which === 40) {
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if ($scope.results && ($scope.currentIndex + 1) < $scope.results.length) {
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$scope.currentIndex ++;
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$scope.$apply();
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event.preventDefault;
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event.stopPropagation();
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}
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$scope.$apply();
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} else if(event.which == 38) {
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if ($scope.currentIndex >= 1) {
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$scope.currentIndex --;
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$scope.$apply();
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event.preventDefault;
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event.stopPropagation();
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}
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} else if (event.which == 13) {
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if ($scope.results && $scope.currentIndex >= 0 && $scope.currentIndex < $scope.results.length) {
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$scope.selectResult($scope.results[$scope.currentIndex]);
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$scope.$apply();
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event.preventDefault;
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event.stopPropagation();
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} else {
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$scope.results = [];
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$scope.$apply();
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event.preventDefault;
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event.stopPropagation();
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}
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} else if (event.which == 27) {
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$scope.results = [];
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$scope.showDropdown = false;
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$scope.$apply();
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} else if (event.which == 8) {
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$scope.selectedObject = null;
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$scope.$apply();
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}
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});
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}
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};
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});
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