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select.js
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select.js
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/*!
* ui-select
* http://github.com/angular-ui/ui-select
* Version: 0.19.7 - 2017-04-15T14:28:36.649Z
* License: MIT
*/
(function () {
"use strict";
var KEY = {
TAB: 9,
ENTER: 13,
ESC: 27,
SPACE: 32,
LEFT: 37,
UP: 38,
RIGHT: 39,
DOWN: 40,
SHIFT: 16,
CTRL: 17,
ALT: 18,
PAGE_UP: 33,
PAGE_DOWN: 34,
HOME: 36,
END: 35,
BACKSPACE: 8,
DELETE: 46,
COMMAND: 91,
MAP: { 91 : "COMMAND", 8 : "BACKSPACE" , 9 : "TAB" , 13 : "ENTER" , 16 : "SHIFT" , 17 : "CTRL" , 18 : "ALT" , 19 : "PAUSEBREAK" , 20 : "CAPSLOCK" , 27 : "ESC" , 32 : "SPACE" , 33 : "PAGE_UP", 34 : "PAGE_DOWN" , 35 : "END" , 36 : "HOME" , 37 : "LEFT" , 38 : "UP" , 39 : "RIGHT" , 40 : "DOWN" , 43 : "+" , 44 : "PRINTSCREEN" , 45 : "INSERT" , 46 : "DELETE", 48 : "0" , 49 : "1" , 50 : "2" , 51 : "3" , 52 : "4" , 53 : "5" , 54 : "6" , 55 : "7" , 56 : "8" , 57 : "9" , 59 : ";", 61 : "=" , 65 : "A" , 66 : "B" , 67 : "C" , 68 : "D" , 69 : "E" , 70 : "F" , 71 : "G" , 72 : "H" , 73 : "I" , 74 : "J" , 75 : "K" , 76 : "L", 77 : "M" , 78 : "N" , 79 : "O" , 80 : "P" , 81 : "Q" , 82 : "R" , 83 : "S" , 84 : "T" , 85 : "U" , 86 : "V" , 87 : "W" , 88 : "X" , 89 : "Y" , 90 : "Z", 96 : "0" , 97 : "1" , 98 : "2" , 99 : "3" , 100 : "4" , 101 : "5" , 102 : "6" , 103 : "7" , 104 : "8" , 105 : "9", 106 : "*" , 107 : "+" , 109 : "-" , 110 : "." , 111 : "/", 112 : "F1" , 113 : "F2" , 114 : "F3" , 115 : "F4" , 116 : "F5" , 117 : "F6" , 118 : "F7" , 119 : "F8" , 120 : "F9" , 121 : "F10" , 122 : "F11" , 123 : "F12", 144 : "NUMLOCK" , 145 : "SCROLLLOCK" , 186 : ";" , 187 : "=" , 188 : "," , 189 : "-" , 190 : "." , 191 : "/" , 192 : "`" , 219 : "[" , 220 : "\\" , 221 : "]" , 222 : "'"
},
isControl: function (e) {
var k = e.which;
switch (k) {
case KEY.COMMAND:
case KEY.SHIFT:
case KEY.CTRL:
case KEY.ALT:
return true;
}
if (e.metaKey || e.ctrlKey || e.altKey) return true;
return false;
},
isFunctionKey: function (k) {
k = k.which ? k.which : k;
return k >= 112 && k <= 123;
},
isVerticalMovement: function (k){
return ~[KEY.UP, KEY.DOWN].indexOf(k);
},
isHorizontalMovement: function (k){
return ~[KEY.LEFT,KEY.RIGHT,KEY.BACKSPACE,KEY.DELETE].indexOf(k);
},
toSeparator: function (k) {
var sep = {ENTER:"\n",TAB:"\t",SPACE:" "}[k];
if (sep) return sep;
// return undefined for special keys other than enter, tab or space.
// no way to use them to cut strings.
return KEY[k] ? undefined : k;
}
};
function isNil(value) {
return angular.isUndefined(value) || value === null;
}
/**
* Add querySelectorAll() to jqLite.
*
* jqLite find() is limited to lookups by tag name.
* TODO This will change with future versions of AngularJS, to be removed when this happens
*
* See jqLite.find - why not use querySelectorAll? https://github.com/angular/angular.js/issues/3586
* See feat(jqLite): use querySelectorAll instead of getElementsByTagName in jqLite.find https://github.com/angular/angular.js/pull/3598
*/
if (angular.element.prototype.querySelectorAll === undefined) {
angular.element.prototype.querySelectorAll = function(selector) {
return angular.element(this[0].querySelectorAll(selector));
};
}
/**
* Add closest() to jqLite.
*/
if (angular.element.prototype.closest === undefined) {
angular.element.prototype.closest = function( selector) {
var elem = this[0];
var matchesSelector = elem.matches || elem.webkitMatchesSelector || elem.mozMatchesSelector || elem.msMatchesSelector;
while (elem) {
if (matchesSelector.bind(elem)(selector)) {
return elem;
} else {
elem = elem.parentElement;
}
}
return false;
};
}
var latestId = 0;
var uis = angular.module('ui.select', [])
.constant('uiSelectConfig', {
theme: 'bootstrap',
searchEnabled: true,
sortable: false,
placeholder: '', // Empty by default, like HTML tag <select>
refreshDelay: 1000, // In milliseconds
closeOnSelect: true,
skipFocusser: false,
dropdownPosition: 'auto',
removeSelected: true,
resetSearchInput: true,
generateId: function() {
return latestId++;
},
appendToBody: false,
spinnerEnabled: false,
spinnerClass: 'glyphicon glyphicon-refresh ui-select-spin',
backspaceReset: true
})
// See Rename minErr and make it accessible from outside https://github.com/angular/angular.js/issues/6913
.service('uiSelectMinErr', function() {
var minErr = angular.$$minErr('ui.select');
return function() {
var error = minErr.apply(this, arguments);
var message = error.message.replace(new RegExp('\nhttp://errors.angularjs.org/.*'), '');
return new Error(message);
};
})
// Recreates old behavior of ng-transclude. Used internally.
.directive('uisTranscludeAppend', function () {
return {
link: function (scope, element, attrs, ctrl, transclude) {
transclude(scope, function (clone) {
element.append(clone);
});
}
};
})
/**
* Highlights text that matches $select.search.
*
* Taken from AngularUI Bootstrap Typeahead
* See https://github.com/angular-ui/bootstrap/blob/0.10.0/src/typeahead/typeahead.js#L340
*/
.filter('highlight', function() {
function escapeRegexp(queryToEscape) {
return ('' + queryToEscape).replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1');
}
return function(matchItem, query) {
return query && matchItem ? ('' + matchItem).replace(new RegExp(escapeRegexp(query), 'gi'), '<span class="ui-select-highlight">$&</span>') : matchItem;
};
})
/**
* A read-only equivalent of jQuery's offset function: http://api.jquery.com/offset/
*
* Taken from AngularUI Bootstrap Position:
* See https://github.com/angular-ui/bootstrap/blob/master/src/position/position.js#L70
*/
.factory('uisOffset',
['$document', '$window',
function ($document, $window) {
return function(element) {
var boundingClientRect = element[0].getBoundingClientRect();
return {
width: boundingClientRect.width || element.prop('offsetWidth'),
height: boundingClientRect.height || element.prop('offsetHeight'),
top: boundingClientRect.top + ($window.pageYOffset || $document[0].documentElement.scrollTop),
left: boundingClientRect.left + ($window.pageXOffset || $document[0].documentElement.scrollLeft)
};
};
}]);
/**
* Debounces functions
*
* Taken from UI Bootstrap $$debounce source code
* See https://github.com/angular-ui/bootstrap/blob/master/src/debounce/debounce.js
*
*/
uis.factory('$$uisDebounce', ['$timeout', function($timeout) {
return function(callback, debounceTime) {
var timeoutPromise;
return function() {
var self = this;
var args = Array.prototype.slice.call(arguments);
if (timeoutPromise) {
$timeout.cancel(timeoutPromise);
}
timeoutPromise = $timeout(function() {
callback.apply(self, args);
}, debounceTime);
};
};
}]);
uis.directive('uiSelectChoices',
['uiSelectConfig', 'uisRepeatParser', 'uiSelectMinErr', '$compile', '$window',
function(uiSelectConfig, RepeatParser, uiSelectMinErr, $compile, $window) {
return {
restrict: 'EA',
require: '^uiSelect',
replace: true,
transclude: true,
templateUrl: function(tElement) {
// Needed so the uiSelect can detect the transcluded content
tElement.addClass('ui-select-choices');
// Gets theme attribute from parent (ui-select)
var theme = tElement.parent().attr('theme') || uiSelectConfig.theme;
return theme + '/choices.tpl.html';
},
compile: function(tElement, tAttrs) {
if (!tAttrs.repeat) throw uiSelectMinErr('repeat', "Expected 'repeat' expression.");
// var repeat = RepeatParser.parse(attrs.repeat);
var groupByExp = tAttrs.groupBy;
var groupFilterExp = tAttrs.groupFilter;
if (groupByExp) {
var groups = tElement.querySelectorAll('.ui-select-choices-group');
if (groups.length !== 1) throw uiSelectMinErr('rows', "Expected 1 .ui-select-choices-group but got '{0}'.", groups.length);
groups.attr('ng-repeat', RepeatParser.getGroupNgRepeatExpression());
}
var parserResult = RepeatParser.parse(tAttrs.repeat);
var choices = tElement.querySelectorAll('.ui-select-choices-row');
if (choices.length !== 1) {
throw uiSelectMinErr('rows', "Expected 1 .ui-select-choices-row but got '{0}'.", choices.length);
}
choices.attr('ng-repeat', parserResult.repeatExpression(groupByExp))
.attr('ng-if', '$select.open'); //Prevent unnecessary watches when dropdown is closed
var rowsInner = tElement.querySelectorAll('.ui-select-choices-row-inner');
if (rowsInner.length !== 1) {
throw uiSelectMinErr('rows', "Expected 1 .ui-select-choices-row-inner but got '{0}'.", rowsInner.length);
}
rowsInner.attr('uis-transclude-append', ''); //Adding uisTranscludeAppend directive to row element after choices element has ngRepeat
// If IE8 then need to target rowsInner to apply the ng-click attr as choices will not capture the event.
var clickTarget = $window.document.addEventListener ? choices : rowsInner;
clickTarget.attr('ng-click', '$select.select(' + parserResult.itemName + ',$select.skipFocusser,$event)');
return function link(scope, element, attrs, $select) {
$select.parseRepeatAttr(attrs.repeat, groupByExp, groupFilterExp); //Result ready at $select.parserResult
$select.disableChoiceExpression = attrs.uiDisableChoice;
$select.onHighlightCallback = attrs.onHighlight;
$select.minimumInputLength = parseInt(attrs.minimumInputLength) || 0;
$select.dropdownPosition = attrs.position ? attrs.position.toLowerCase() : uiSelectConfig.dropdownPosition;
scope.$watch('$select.search', function(newValue) {
if(newValue && !$select.open && $select.multiple) $select.activate(false, true);
$select.activeIndex = $select.tagging.isActivated ? -1 : 0;
if (!attrs.minimumInputLength || $select.search.length >= attrs.minimumInputLength) {
$select.refresh(attrs.refresh);
} else {
$select.items = [];
}
});
attrs.$observe('refreshDelay', function() {
// $eval() is needed otherwise we get a string instead of a number
var refreshDelay = scope.$eval(attrs.refreshDelay);
$select.refreshDelay = refreshDelay !== undefined ? refreshDelay : uiSelectConfig.refreshDelay;
});
scope.$watch('$select.open', function(open) {
if (open) {
tElement.attr('role', 'listbox');
$select.refresh(attrs.refresh);
} else {
element.removeAttr('role');
}
});
};
}
};
}]);
/**
* Contains ui-select "intelligence".
*
* The goal is to limit dependency on the DOM whenever possible and
* put as much logic in the controller (instead of the link functions) as possible so it can be easily tested.
*/
uis.controller('uiSelectCtrl',
['$scope', '$element', '$timeout', '$filter', '$$uisDebounce', 'uisRepeatParser', 'uiSelectMinErr', 'uiSelectConfig', '$parse', '$injector', '$window',
function($scope, $element, $timeout, $filter, $$uisDebounce, RepeatParser, uiSelectMinErr, uiSelectConfig, $parse, $injector, $window) {
var ctrl = this;
var EMPTY_SEARCH = '';
ctrl.placeholder = uiSelectConfig.placeholder;
ctrl.searchEnabled = uiSelectConfig.searchEnabled;
ctrl.sortable = uiSelectConfig.sortable;
ctrl.refreshDelay = uiSelectConfig.refreshDelay;
ctrl.paste = uiSelectConfig.paste;
ctrl.resetSearchInput = uiSelectConfig.resetSearchInput;
ctrl.refreshing = false;
ctrl.spinnerEnabled = uiSelectConfig.spinnerEnabled;
ctrl.spinnerClass = uiSelectConfig.spinnerClass;
ctrl.removeSelected = uiSelectConfig.removeSelected; //If selected item(s) should be removed from dropdown list
ctrl.closeOnSelect = true; //Initialized inside uiSelect directive link function
ctrl.skipFocusser = false; //Set to true to avoid returning focus to ctrl when item is selected
ctrl.search = EMPTY_SEARCH;
ctrl.activeIndex = 0; //Dropdown of choices
ctrl.items = []; //All available choices
ctrl.open = false;
ctrl.focus = false;
ctrl.disabled = false;
ctrl.selected = undefined;
ctrl.dropdownPosition = 'auto';
ctrl.focusser = undefined; //Reference to input element used to handle focus events
ctrl.multiple = undefined; // Initialized inside uiSelect directive link function
ctrl.disableChoiceExpression = undefined; // Initialized inside uiSelectChoices directive link function
ctrl.tagging = {isActivated: false, fct: undefined};
ctrl.taggingTokens = {isActivated: false, tokens: undefined};
ctrl.lockChoiceExpression = undefined; // Initialized inside uiSelectMatch directive link function
ctrl.clickTriggeredSelect = false;
ctrl.$filter = $filter;
ctrl.$element = $element;
// Use $injector to check for $animate and store a reference to it
ctrl.$animate = (function () {
try {
return $injector.get('$animate');
} catch (err) {
// $animate does not exist
return null;
}
})();
ctrl.searchInput = $element.querySelectorAll('input.ui-select-search');
if (ctrl.searchInput.length !== 1) {
throw uiSelectMinErr('searchInput', "Expected 1 input.ui-select-search but got '{0}'.", ctrl.searchInput.length);
}
ctrl.isEmpty = function() {
return isNil(ctrl.selected) || ctrl.selected === '' || (ctrl.multiple && ctrl.selected.length === 0);
};
function _findIndex(collection, predicate, thisArg){
if (collection.findIndex){
return collection.findIndex(predicate, thisArg);
} else {
var list = Object(collection);
var length = list.length >>> 0;
var value;
for (var i = 0; i < length; i++) {
value = list[i];
if (predicate.call(thisArg, value, i, list)) {
return i;
}
}
return -1;
}
}
// Most of the time the user does not want to empty the search input when in typeahead mode
function _resetSearchInput() {
if (ctrl.resetSearchInput) {
ctrl.search = EMPTY_SEARCH;
//reset activeIndex
if (ctrl.selected && ctrl.items.length && !ctrl.multiple) {
ctrl.activeIndex = _findIndex(ctrl.items, function(item){
return angular.equals(this, item);
}, ctrl.selected);
}
}
}
function _groupsFilter(groups, groupNames) {
var i, j, result = [];
for(i = 0; i < groupNames.length ;i++){
for(j = 0; j < groups.length ;j++){
if(groups[j].name == [groupNames[i]]){
result.push(groups[j]);
}
}
}
return result;
}
// When the user clicks on ui-select, displays the dropdown list
ctrl.activate = function(initSearchValue, avoidReset) {
if (!ctrl.disabled && !ctrl.open) {
if(!avoidReset) _resetSearchInput();
$scope.$broadcast('uis:activate');
ctrl.open = true;
ctrl.activeIndex = ctrl.activeIndex >= ctrl.items.length ? 0 : ctrl.activeIndex;
// ensure that the index is set to zero for tagging variants
// that where first option is auto-selected
if ( ctrl.activeIndex === -1 && ctrl.taggingLabel !== false ) {
ctrl.activeIndex = 0;
}
var container = $element.querySelectorAll('.ui-select-choices-content');
var searchInput = $element.querySelectorAll('.ui-select-search');
if (ctrl.$animate && ctrl.$animate.on && ctrl.$animate.enabled(container[0])) {
var animateHandler = function(elem, phase) {
if (phase === 'start' && ctrl.items.length === 0) {
// Only focus input after the animation has finished
ctrl.$animate.off('removeClass', searchInput[0], animateHandler);
$timeout(function () {
ctrl.focusSearchInput(initSearchValue);
});
} else if (phase === 'close') {
// Only focus input after the animation has finished
ctrl.$animate.off('enter', container[0], animateHandler);
$timeout(function () {
ctrl.focusSearchInput(initSearchValue);
});
}
};
if (ctrl.items.length > 0) {
ctrl.$animate.on('enter', container[0], animateHandler);
} else {
ctrl.$animate.on('removeClass', searchInput[0], animateHandler);
}
} else {
$timeout(function () {
ctrl.focusSearchInput(initSearchValue);
if(!ctrl.tagging.isActivated && ctrl.items.length > 1) {
_ensureHighlightVisible();
}
});
}
}
else if (ctrl.open && !ctrl.searchEnabled) {
// Close the selection if we don't have search enabled, and we click on the select again
ctrl.close();
}
};
ctrl.focusSearchInput = function (initSearchValue) {
ctrl.search = initSearchValue || ctrl.search;
ctrl.searchInput[0].focus();
};
ctrl.findGroupByName = function(name) {
return ctrl.groups && ctrl.groups.filter(function(group) {
return group.name === name;
})[0];
};
ctrl.parseRepeatAttr = function(repeatAttr, groupByExp, groupFilterExp) {
function updateGroups(items) {
var groupFn = $scope.$eval(groupByExp);
ctrl.groups = [];
angular.forEach(items, function(item) {
var groupName = angular.isFunction(groupFn) ? groupFn(item) : item[groupFn];
var group = ctrl.findGroupByName(groupName);
if(group) {
group.items.push(item);
}
else {
ctrl.groups.push({name: groupName, items: [item]});
}
});
if(groupFilterExp){
var groupFilterFn = $scope.$eval(groupFilterExp);
if( angular.isFunction(groupFilterFn)){
ctrl.groups = groupFilterFn(ctrl.groups);
} else if(angular.isArray(groupFilterFn)){
ctrl.groups = _groupsFilter(ctrl.groups, groupFilterFn);
}
}
ctrl.items = [];
ctrl.groups.forEach(function(group) {
ctrl.items = ctrl.items.concat(group.items);
});
}
function setPlainItems(items) {
ctrl.items = items || [];
}
ctrl.setItemsFn = groupByExp ? updateGroups : setPlainItems;
ctrl.parserResult = RepeatParser.parse(repeatAttr);
ctrl.isGrouped = !!groupByExp;
ctrl.itemProperty = ctrl.parserResult.itemName;
//If collection is an Object, convert it to Array
var originalSource = ctrl.parserResult.source;
//When an object is used as source, we better create an array and use it as 'source'
var createArrayFromObject = function(){
var origSrc = originalSource($scope);
$scope.$uisSource = Object.keys(origSrc).map(function(v){
var result = {};
result[ctrl.parserResult.keyName] = v;
result.value = origSrc[v];
return result;
});
};
if (ctrl.parserResult.keyName){ // Check for (key,value) syntax
createArrayFromObject();
ctrl.parserResult.source = $parse('$uisSource' + ctrl.parserResult.filters);
$scope.$watch(originalSource, function(newVal, oldVal){
if (newVal !== oldVal) createArrayFromObject();
}, true);
}
ctrl.refreshItems = function (data){
data = data || ctrl.parserResult.source($scope);
var selectedItems = ctrl.selected;
//TODO should implement for single mode removeSelected
if (ctrl.isEmpty() || (angular.isArray(selectedItems) && !selectedItems.length) || !ctrl.multiple || !ctrl.removeSelected) {
ctrl.setItemsFn(data);
}else{
if ( data !== undefined && data !== null ) {
var filteredItems = data.filter(function(i) {
return angular.isArray(selectedItems) ? selectedItems.every(function(selectedItem) {
return !angular.equals(i, selectedItem);
}) : !angular.equals(i, selectedItems);
});
ctrl.setItemsFn(filteredItems);
}
}
if (ctrl.dropdownPosition === 'auto' || ctrl.dropdownPosition === 'up'){
$scope.calculateDropdownPos();
}
$scope.$broadcast('uis:refresh');
};
// See https://github.com/angular/angular.js/blob/v1.2.15/src/ng/directive/ngRepeat.js#L259
$scope.$watchCollection(ctrl.parserResult.source, function(items) {
if (items === undefined || items === null) {
// If the user specifies undefined or null => reset the collection
// Special case: items can be undefined if the user did not initialized the collection on the scope
// i.e $scope.addresses = [] is missing
ctrl.items = [];
} else {
if (!angular.isArray(items)) {
throw uiSelectMinErr('items', "Expected an array but got '{0}'.", items);
} else {
//Remove already selected items (ex: while searching)
//TODO Should add a test
ctrl.refreshItems(items);
//update the view value with fresh data from items, if there is a valid model value
if(angular.isDefined(ctrl.ngModel.$modelValue)) {
ctrl.ngModel.$modelValue = null; //Force scope model value and ngModel value to be out of sync to re-run formatters
}
}
}
});
};
var _refreshDelayPromise;
/**
* Typeahead mode: lets the user refresh the collection using his own function.
*
* See Expose $select.search for external / remote filtering https://github.com/angular-ui/ui-select/pull/31
*/
ctrl.refresh = function(refreshAttr) {
if (refreshAttr !== undefined) {
// Debounce
// See https://github.com/angular-ui/bootstrap/blob/0.10.0/src/typeahead/typeahead.js#L155
// FYI AngularStrap typeahead does not have debouncing: https://github.com/mgcrea/angular-strap/blob/v2.0.0-rc.4/src/typeahead/typeahead.js#L177
if (_refreshDelayPromise) {
$timeout.cancel(_refreshDelayPromise);
}
_refreshDelayPromise = $timeout(function() {
if ($scope.$select.search.length >= $scope.$select.minimumInputLength) {
var refreshPromise = $scope.$eval(refreshAttr);
if (refreshPromise && angular.isFunction(refreshPromise.then) && !ctrl.refreshing) {
ctrl.refreshing = true;
refreshPromise.finally(function() {
ctrl.refreshing = false;
});
}
}
}, ctrl.refreshDelay);
}
};
ctrl.isActive = function(itemScope) {
if ( !ctrl.open ) {
return false;
}
var itemIndex = ctrl.items.indexOf(itemScope[ctrl.itemProperty]);
var isActive = itemIndex == ctrl.activeIndex;
if ( !isActive || itemIndex < 0 ) {
return false;
}
if (isActive && !angular.isUndefined(ctrl.onHighlightCallback)) {
itemScope.$eval(ctrl.onHighlightCallback);
}
return isActive;
};
var _isItemSelected = function (item) {
return (ctrl.selected && angular.isArray(ctrl.selected) &&
ctrl.selected.filter(function (selection) { return angular.equals(selection, item); }).length > 0);
};
var disabledItems = [];
function _updateItemDisabled(item, isDisabled) {
var disabledItemIndex = disabledItems.indexOf(item);
if (isDisabled && disabledItemIndex === -1) {
disabledItems.push(item);
}
if (!isDisabled && disabledItemIndex > -1) {
disabledItems.splice(disabledItemIndex, 1);
}
}
function _isItemDisabled(item) {
return disabledItems.indexOf(item) > -1;
}
ctrl.isDisabled = function(itemScope) {
if (!ctrl.open) return;
var item = itemScope[ctrl.itemProperty];
var itemIndex = ctrl.items.indexOf(item);
var isDisabled = false;
if (itemIndex >= 0 && (angular.isDefined(ctrl.disableChoiceExpression) || ctrl.multiple)) {
if (item.isTag) return false;
if (ctrl.multiple) {
isDisabled = _isItemSelected(item);
}
if (!isDisabled && angular.isDefined(ctrl.disableChoiceExpression)) {
isDisabled = !!(itemScope.$eval(ctrl.disableChoiceExpression));
}
_updateItemDisabled(item, isDisabled);
}
return isDisabled;
};
// When the user selects an item with ENTER or clicks the dropdown
ctrl.select = function(item, skipFocusser, $event) {
if (isNil(item) || !_isItemDisabled(item)) {
if ( ! ctrl.items && ! ctrl.search && ! ctrl.tagging.isActivated) return;
if (!item || !_isItemDisabled(item)) {
// if click is made on existing item, prevent from tagging, ctrl.search does not matter
ctrl.clickTriggeredSelect = false;
if($event && ($event.type === 'click' || $event.type === 'touchend') && item)
ctrl.clickTriggeredSelect = true;
if(ctrl.tagging.isActivated && ctrl.clickTriggeredSelect === false) {
// if taggingLabel is disabled and item is undefined we pull from ctrl.search
if ( ctrl.taggingLabel === false ) {
if ( ctrl.activeIndex < 0 ) {
if (item === undefined) {
item = ctrl.tagging.fct !== undefined ? ctrl.tagging.fct(ctrl.search) : ctrl.search;
}
if (!item || angular.equals( ctrl.items[0], item ) ) {
return;
}
} else {
// keyboard nav happened first, user selected from dropdown
item = ctrl.items[ctrl.activeIndex];
}
} else {
// tagging always operates at index zero, taggingLabel === false pushes
// the ctrl.search value without having it injected
if ( ctrl.activeIndex === 0 ) {
// ctrl.tagging pushes items to ctrl.items, so we only have empty val
// for `item` if it is a detected duplicate
if ( item === undefined ) return;
// create new item on the fly if we don't already have one;
// use tagging function if we have one
if ( ctrl.tagging.fct !== undefined && typeof item === 'string' ) {
item = ctrl.tagging.fct(item);
if (!item) return;
// if item type is 'string', apply the tagging label
} else if ( typeof item === 'string' ) {
// trim the trailing space
item = item.replace(ctrl.taggingLabel,'').trim();
}
}
}
// search ctrl.selected for dupes potentially caused by tagging and return early if found
if (_isItemSelected(item)) {
ctrl.close(skipFocusser);
return;
}
}
_resetSearchInput();
$scope.$broadcast('uis:select', item);
if (ctrl.closeOnSelect) {
ctrl.close(skipFocusser);
}
}
}
};
// Closes the dropdown
ctrl.close = function(skipFocusser) {
if (!ctrl.open) return;
if (ctrl.ngModel && ctrl.ngModel.$setTouched) ctrl.ngModel.$setTouched();
ctrl.open = false;
_resetSearchInput();
$scope.$broadcast('uis:close', skipFocusser);
};
ctrl.setFocus = function(){
if (!ctrl.focus) ctrl.focusInput[0].focus();
};
ctrl.clear = function($event) {
ctrl.select(null);
$event.stopPropagation();
$timeout(function() {
ctrl.focusser[0].focus();
}, 0, false);
};
// Toggle dropdown
ctrl.toggle = function(e) {
if (ctrl.open) {
ctrl.close();
e.preventDefault();
e.stopPropagation();
} else {
ctrl.activate();
}
};
// Set default function for locked choices - avoids unnecessary
// logic if functionality is not being used
ctrl.isLocked = function () {
return false;
};
$scope.$watch(function () {
return angular.isDefined(ctrl.lockChoiceExpression) && ctrl.lockChoiceExpression !== "";
}, _initaliseLockedChoices);
function _initaliseLockedChoices(doInitalise) {
if(!doInitalise) return;
var lockedItems = [];
function _updateItemLocked(item, isLocked) {
var lockedItemIndex = lockedItems.indexOf(item);
if (isLocked && lockedItemIndex === -1) {
lockedItems.push(item);
}
if (!isLocked && lockedItemIndex > -1) {
lockedItems.splice(lockedItemIndex, 1);
}
}
function _isItemlocked(item) {
return lockedItems.indexOf(item) > -1;
}
ctrl.isLocked = function (itemScope, itemIndex) {
var isLocked = false,
item = ctrl.selected[itemIndex];
if(item) {
if (itemScope) {
isLocked = !!(itemScope.$eval(ctrl.lockChoiceExpression));
_updateItemLocked(item, isLocked);
} else {
isLocked = _isItemlocked(item);
}
}
return isLocked;
};
}
var sizeWatch = null;
var updaterScheduled = false;
ctrl.sizeSearchInput = function() {
var input = ctrl.searchInput[0],
container = ctrl.$element[0],
calculateContainerWidth = function() {
// Return the container width only if the search input is visible
return container.clientWidth * !!input.offsetParent;
},
updateIfVisible = function(containerWidth) {
if (containerWidth === 0) {
return false;
}
var inputWidth = containerWidth - input.offsetLeft;
if (inputWidth < 50) inputWidth = containerWidth;
ctrl.searchInput.css('width', inputWidth+'px');
return true;
};
ctrl.searchInput.css('width', '10px');
$timeout(function() { //Give tags time to render correctly
if (sizeWatch === null && !updateIfVisible(calculateContainerWidth())) {
sizeWatch = $scope.$watch(function() {
if (!updaterScheduled) {
updaterScheduled = true;
$scope.$$postDigest(function() {
updaterScheduled = false;
if (updateIfVisible(calculateContainerWidth())) {
sizeWatch();
sizeWatch = null;
}
});
}
}, angular.noop);
}
});
};
function _handleDropDownSelection(key) {
var processed = true;
switch (key) {
case KEY.DOWN:
if (!ctrl.open && ctrl.multiple) ctrl.activate(false, true); //In case its the search input in 'multiple' mode
else if (ctrl.activeIndex < ctrl.items.length - 1) {
var idx = ++ctrl.activeIndex;
while(_isItemDisabled(ctrl.items[idx]) && idx < ctrl.items.length) {
ctrl.activeIndex = ++idx;
}
}
break;
case KEY.UP:
var minActiveIndex = (ctrl.search.length === 0 && ctrl.tagging.isActivated) ? -1 : 0;
if (!ctrl.open && ctrl.multiple) ctrl.activate(false, true); //In case its the search input in 'multiple' mode
else if (ctrl.activeIndex > minActiveIndex) {
var idxmin = --ctrl.activeIndex;
while(_isItemDisabled(ctrl.items[idxmin]) && idxmin > minActiveIndex) {
ctrl.activeIndex = --idxmin;
}
}
break;
case KEY.TAB:
if (!ctrl.multiple || ctrl.open) ctrl.select(ctrl.items[ctrl.activeIndex], true);
break;
case KEY.ENTER:
if(ctrl.open && (ctrl.tagging.isActivated || ctrl.activeIndex >= 0)){
ctrl.select(ctrl.items[ctrl.activeIndex], ctrl.skipFocusser); // Make sure at least one dropdown item is highlighted before adding if not in tagging mode
} else {
ctrl.activate(false, true); //In case its the search input in 'multiple' mode
}
break;
case KEY.ESC:
ctrl.close();
break;
default:
processed = false;
}
return processed;
}
// Bind to keyboard shortcuts
ctrl.searchInput.on('keydown', function(e) {
var key = e.which;
if (~[KEY.ENTER,KEY.ESC].indexOf(key)){
e.preventDefault();
e.stopPropagation();
}
$scope.$apply(function() {
var tagged = false;
if (ctrl.items.length > 0 || ctrl.tagging.isActivated) {
if(!_handleDropDownSelection(key) && !ctrl.searchEnabled) {
e.preventDefault();
e.stopPropagation();
}
if ( ctrl.taggingTokens.isActivated ) {
for (var i = 0; i < ctrl.taggingTokens.tokens.length; i++) {
if ( ctrl.taggingTokens.tokens[i] === KEY.MAP[e.keyCode] ) {
// make sure there is a new value to push via tagging
if ( ctrl.search.length > 0 ) {
tagged = true;
}
}
}
if ( tagged ) {
$timeout(function() {
ctrl.searchInput.triggerHandler('tagged');
var newItem = ctrl.search.replace(KEY.MAP[e.keyCode],'').trim();
if ( ctrl.tagging.fct ) {
newItem = ctrl.tagging.fct( newItem );
}
if (newItem) ctrl.select(newItem, true);
});
}
}
}
});
if(KEY.isVerticalMovement(key) && ctrl.items.length > 0){
_ensureHighlightVisible();
}
if (key === KEY.ENTER || key === KEY.ESC) {
e.preventDefault();
e.stopPropagation();
}
});
ctrl.searchInput.on('paste', function (e) {
var data;
if (window.clipboardData && window.clipboardData.getData) { // IE
data = window.clipboardData.getData('Text');
} else {
data = (e.originalEvent || e).clipboardData.getData('text/plain');
}
// Prepend the current input field text to the paste buffer.
data = ctrl.search + data;
if (data && data.length > 0) {
// If tagging try to split by tokens and add items
if (ctrl.taggingTokens.isActivated) {
var items = [];
for (var i = 0; i < ctrl.taggingTokens.tokens.length; i++) { // split by first token that is contained in data
var separator = KEY.toSeparator(ctrl.taggingTokens.tokens[i]) || ctrl.taggingTokens.tokens[i];
if (data.indexOf(separator) > -1) {
items = data.split(separator);
break; // only split by one token
}
}
if (items.length === 0) {
items = [data];
}
var oldsearch = ctrl.search;
angular.forEach(items, function (item) {
var newItem = ctrl.tagging.fct ? ctrl.tagging.fct(item) : item;
if (newItem) {
ctrl.select(newItem, true);
}
});
ctrl.search = oldsearch || EMPTY_SEARCH;
e.preventDefault();
e.stopPropagation();
} else if (ctrl.paste) {
ctrl.paste(data);
ctrl.search = EMPTY_SEARCH;
e.preventDefault();
e.stopPropagation();
}