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/**
* Angucomplete
* Autocomplete directive for AngularJS
* By Daryl Rowland
*/
angular.module('angucomplete', [] )
.directive('angucomplete', function ($parse, $http, $sce, $timeout) {
return {
restrict: 'EA',
scope: {
"id": "@id",
"placeholder": "@placeholder",
"selectedObject": "=selectedobject",
"url": "@url",
"dataField": "@datafield",
"titleField": "@titlefield",
"descriptionField": "@descriptionfield",
"imageField": "@imagefield",
"imageUri": "@imageuri",
"inputClass": "@inputclass",
"userPause": "@pause",
"localData": "=localdata",
"searchFields": "@searchfields",
"minLengthUser": "@minlength",
"matchClass": "@matchclass"
},
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" style="height:300px;overflow:auto;" 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-click="selectResult(result)" ng-mouseover="hoverRow()" ng-class="{\'angucomplete-selected-row\': $index == currentIndex}"><div ng-if="imageField" class="angucomplete-image-holder"><img ng-if="result.image && result.image != \'\'" ng-src="{{result.image}}" class="angucomplete-image"/><div ng-if="!result.image && result.image != \'\'" class="angucomplete-image-default"></div></div><div class="angucomplete-title" ng-if="matchClass" ng-bind-html="result.title"></div><div class="angucomplete-title" ng-if="!matchClass">{{ result.title }}</div><div ng-if="result.description && result.description != \'\'" class="angucomplete-description">{{result.description}}</div></div></div></div>',
link: function($scope, elem, attrs) {
$scope.lastSearchTerm = null;
$scope.currentIndex = null;
$scope.justChanged = false;
$scope.searchTimer = null;
$scope.hideTimer = null;
$scope.searching = false;
$scope.pause = 500;
$scope.minLength = 3;
$scope.searchStr = null;
if ($scope.minLengthUser && $scope.minLengthUser != "") {
$scope.minLength = $scope.minLengthUser;
}
if ($scope.userPause) {
$scope.pause = $scope.userPause;
}
isNewSearchNeeded = function(newTerm, oldTerm) {
return newTerm.length >= $scope.minLength && newTerm != oldTerm
}
$scope.processResults = function(responseData, str) {
if (responseData && responseData.length > 0) {
$scope.results = [];
var titleFields = [];
if ($scope.titleField && $scope.titleField != "") {
titleFields = $scope.titleField.split(",");
}
for (var i = 0; i < responseData.length; i++) {
// Get title variables
var titleCode = [];
for (var t = 0; t < titleFields.length; t++) {
titleCode.push(responseData[i][titleFields[t]]);
}
var description = "";
if ($scope.descriptionField) {
description = responseData[i][$scope.descriptionField];
}
var imageUri = "";
if ($scope.imageUri) {
imageUri = $scope.imageUri;
}
var image = "";
if ($scope.imageField) {
image = imageUri + responseData[i][$scope.imageField];
}
var text = titleCode.join(' ');
if ($scope.matchClass) {
var re = new RegExp(str, 'i');
var strPart = text.match(re)[0];
text = $sce.trustAsHtml(text.replace(re, '<span class="'+ $scope.matchClass +'">'+ strPart +'</span>'));
}
var resultRow = {
title: text,
description: description,
image: image,
originalObject: responseData[i]
}
$scope.results[$scope.results.length] = resultRow;
}
} else {
$scope.results = [];
}
}
$scope.searchTimerComplete = function(str) {
// Begin the search
if (str.length >= $scope.minLength) {
if ($scope.localData) {
var searchFields = $scope.searchFields.split(",");
var matches = [];
for (var i = 0; i < $scope.localData.length; i++) {
var match = false;
for (var s = 0; s < searchFields.length; s++) {
match = match || (typeof $scope.localData[i][searchFields[s]] === 'string' && typeof str === 'string' && $scope.localData[i][searchFields[s]].toLowerCase().indexOf(str.toLowerCase()) >= 0);
}
if (match) {
matches[matches.length] = $scope.localData[i];
}
}
$scope.searching = false;
$scope.processResults(matches, str);
} else {
$http.get($scope.url + str, {}).
success(function(responseData, status, headers, config) {
$scope.searching = false;
$scope.processResults((($scope.dataField) ? responseData[$scope.dataField] : responseData ), str);
}).
error(function(data, status, headers, config) {
console.log("error");
});
}
}
}
$scope.hideResults = function() {
$scope.hideTimer = $timeout(function() {
$scope.showDropdown = false;
}, $scope.pause);
};
$scope.resetHideResults = function() {
if($scope.hideTimer) {
$timeout.cancel($scope.hideTimer);
};
};
$scope.hoverRow = function(index) {
$scope.currentIndex = index;
}
$scope.keyPressed = function(event) {
if (!(event.which == 38 || event.which == 40 || event.which == 13)) {
if (!$scope.searchStr || $scope.searchStr == "") {
$scope.showDropdown = false;
$scope.lastSearchTerm = null
} else if (isNewSearchNeeded($scope.searchStr, $scope.lastSearchTerm)) {
$scope.lastSearchTerm = $scope.searchStr
$scope.showDropdown = true;
$scope.currentIndex = -1;
$scope.results = [];
if ($scope.searchTimer) {
$timeout.cancel($scope.searchTimer);
}
$scope.searching = true;
$scope.searchTimer = $timeout(function() {
$scope.searchTimerComplete($scope.searchStr);
}, $scope.pause);
}
} else {
event.preventDefault();
}
}
$scope.selectResult = function(result) {
if ($scope.matchClass) {
result.title = result.title.toString().replace(/(<([^>]+)>)/ig, '');
}
$scope.searchStr = $scope.lastSearchTerm = result.title;
$scope.selectedObject = result;
$scope.showDropdown = false;
$scope.results = [];
//$scope.$apply();
}
var inputField = elem.find('input');
inputField.on('keyup', $scope.keyPressed);
elem.on("keyup", function (event) {
if(event.which === 40) {
if ($scope.results && ($scope.currentIndex + 1) < $scope.results.length) {
$scope.currentIndex ++;
$scope.$apply();
event.preventDefault;
event.stopPropagation();
}
$scope.$apply();
} else if(event.which == 38) {
if ($scope.currentIndex >= 1) {
$scope.currentIndex --;
$scope.$apply();
event.preventDefault;
event.stopPropagation();
}
} else if (event.which == 13) {
if ($scope.results && $scope.currentIndex >= 0 && $scope.currentIndex < $scope.results.length) {
$scope.selectResult($scope.results[$scope.currentIndex]);
$scope.$apply();
event.preventDefault;
event.stopPropagation();
} else {
$scope.results = [];
$scope.$apply();
event.preventDefault;
event.stopPropagation();
}
} else if (event.which == 27) {
$scope.results = [];
$scope.showDropdown = false;
$scope.$apply();
} else if (event.which == 8) {
$scope.selectedObject = null;
$scope.$apply();
}
});
}
};
});
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