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Diffstat (limited to 'isteven-multi-select.js')
| -rw-r--r-- | isteven-multi-select.js | 1047 |
1 files changed, 1047 insertions, 0 deletions
diff --git a/isteven-multi-select.js b/isteven-multi-select.js new file mode 100644 index 0000000..59ac06b --- /dev/null +++ b/isteven-multi-select.js @@ -0,0 +1,1047 @@ +/* + * Angular JS Multi Select + * Creates a dropdown-like button with checkboxes. + * + * Project started on: Tue, 14 Jan 2014 - 5:18:02 PM + * Current version: 3.0.0 + * + * Released under the MIT License + * -------------------------------------------------------------------------------- + * The MIT License (MIT) + * + * Copyright (c) 2014 Ignatius Steven (https://github.com/isteven) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * -------------------------------------------------------------------------------- + */ + +'use strict' + +angular.module( 'isteven-multi-select', ['ng'] ).directive( 'istevenMultiSelect' , [ '$sce', '$timeout', '$templateCache', function ( $sce, $timeout, $templateCache ) { + return { + restrict: + 'AE', + + scope: + { + // models + inputModel : '=', + outputModel : '=', + + // settings based on attribute + buttonLabel : '@', + directiveId : '@', + helperElements : '@', + isDisabled : '=', + itemLabel : '@', + maxLabels : '@', + orientation : '@', + selectionMode : '@', + minSearchLength : '@', // 3.0.0 - OK + + // settings based on input model property + tickProperty : '@', + disableProperty : '@', + groupProperty : '@', + searchProperty : '@', // 3.0.0 - OK + maxHeight : '@', + lazyLoading : '@', // 3.0.0 + + // callbacks + onClear : '&', // 3.0.0 - OK + onClose : '&', + onSearchChange : '&', // 3.0.0 - OK + onItemClick : '&', + onOpen : '&', + onReset : '&', // 3.0.0 - OK + onSelectAll : '&', // 3.0.0 - OK + onSelectNone : '&', // 3.0.0 - OK + + // i18n + translation : '=' // 3.0.0 - OK + }, + + template: + '<span class="multiSelect inlineBlock" id={{directiveId}}>' + + '<button type="button"' + + 'ng-click="toggleCheckboxes( $event ); refreshSelectedItems(); refreshButton(); prepareGrouping; prepareIndex();"' + + 'ng-bind-html="varButtonLabel">' + + '</button>' + + '<div class="checkboxLayer">' + + + '<div class="helperContainer" ng-if="displayHelper( \'filter\' ) || displayHelper( \'all\' ) || displayHelper( \'none\' ) || displayHelper( \'reset\' )">' + + '<div class="line" ng-if="displayHelper( \'all\' ) || displayHelper( \'none\' ) || displayHelper( \'reset\' )">' + + + '<button type="button" class="helperButton"' + + 'ng-if="!isDisabled && displayHelper( \'all\' )"' + + 'ng-click="select( \'all\', $event );"' + + 'ng-bind-html="lang.selectAll">' + + '</button>'+ + + '<button type="button" class="helperButton"' + + 'ng-if="!isDisabled && displayHelper( \'none\' )"' + + 'ng-click="select( \'none\', $event );"' + + 'ng-bind-html="lang.selectNone">' + + '</button>'+ + + '<button type="button" class="helperButton reset"' + + 'ng-if="!isDisabled && displayHelper( \'reset\' )"' + + 'ng-click="select( \'reset\', $event );"' + + 'ng-bind-html="lang.reset">'+ + '</button>' + + '</div>' + + + '<div class="line" style="position:relative" ng-if="displayHelper( \'filter\' )">'+ + + '<input placeholder="{{lang.search}}" type="text"' + + 'ng-click="select( \'filter\', $event )" '+ + 'ng-model="inputLabel.labelFilter" '+ + 'ng-change="searchChanged()" class="inputFilter"'+ + '/>'+ + + '<button type="button" class="clearButton" ng-click="clearClicked( $event )" >×</button> '+ + '</div> '+ + '</div> '+ + + '<div class="checkBoxContainer">'+ + '<div '+ + 'ng-repeat="item in filteredModel | filter:removeGroupEndMarker" class="multiSelectItem"'+ + 'ng-class="{selected: item[ tickProperty ], horizontal: orientationH, vertical: orientationV, multiSelectGroup:item[ groupProperty ], disabled:itemIsDisabled( item )}"'+ + 'ng-click="syncItems( item, $event, $index );" '+ + 'ng-mouseleave="removeFocusStyle( tabIndex );"> '+ + + '<div class="acol" ng-if="item[ spacingProperty ] > 0" ng-repeat="i in numberToArray( item[ spacingProperty ] ) track by $index">'+ + + '</div> '+ + + '<div class="acol">'+ + + '<label>'+ + '<input class="checkbox focusable" type="checkbox" '+ + 'ng-disabled="itemIsDisabled( item )" '+ + 'ng-checked="item[ tickProperty ]" '+ + 'ng-click="syncItems( item, $event, $index )" />'+ + + '<span '+ + 'ng-class="{disabled:itemIsDisabled( item )}" '+ + 'ng-bind-html="writeLabel( item, \'itemLabel\' )">'+ + '</span>'+ + '</label>'+ + '</div>'+ + + '<span class="tickMark" ng-if="item[ groupProperty ] !== true && item[ tickProperty ] === true">✔</span>'+ + '</div>'+ + '</div>'+ + '</div>'+ + '</span>', + + link: function ( $scope, element, attrs ) { + + $scope.backUp = []; + $scope.varButtonLabel = ''; + $scope.spacingProperty = ''; + $scope.indexProperty = ''; + $scope.orientationH = false; + $scope.orientationV = true; + $scope.filteredModel = []; + $scope.inputLabel = { labelFilter: '' }; + $scope.tabIndex = 0; + $scope.lang = {}; + $scope.localModel = []; + + var + prevTabIndex = 0, + helperItems = [], + helperItemsLength = 0, + checkBoxLayer = '', + scrolled = false, + selectedItems = [], + formElements = [], + vMinSearchLength = 0, + clickedItem = null; + + // v3.0.0 + // clear button clicked + $scope.clearClicked = function( e ) { + $scope.inputLabel.labelFilter = ''; + $scope.updateFilter(); + $scope.select( 'clear', e ); + } + + // A little hack so that AngularJS ng-repeat can loop using start and end index like a normal loop + // http://stackoverflow.com/questions/16824853/way-to-ng-repeat-defined-number-of-times-instead-of-repeating-over-array + $scope.numberToArray = function( num ) { + return new Array( num ); + } + + // Call this function when user type on the filter field + $scope.searchChanged = function() { + if ( $scope.inputLabel.labelFilter.length < vMinSearchLength && $scope.inputLabel.labelFilter.length > 0 ) { + return false; + } + $scope.updateFilter(); + } + + $scope.updateFilter = function() + { + // we check by looping from end of input-model + $scope.filteredModel = []; + var i = 0; + + if ( typeof $scope.localModel === 'undefined' ) { + return false; + } + + for( i = $scope.localModel.length - 1; i >= 0; i-- ) { + + // if it's group end, we push it to filteredModel[]; + if ( typeof $scope.localModel[ i ][ $scope.groupProperty ] !== 'undefined' && $scope.localModel[ i ][ $scope.groupProperty ] === false ) { + $scope.filteredModel.push( $scope.localModel[ i ] ); + } + + // if it's data + var gotData = false; + if ( typeof $scope.localModel[ i ][ $scope.groupProperty ] === 'undefined' ) { + + // If we set the search-key attribute, we use this loop. + if ( typeof attrs.searchProperty !== 'undefined' && $scope.searchProperty !== '' ) { + + for (var key in $scope.localModel[ i ] ) { + if ( + typeof $scope.localModel[ i ][ key ] !== 'boolean' + && String( $scope.localModel[ i ][ key ] ).toUpperCase().indexOf( $scope.inputLabel.labelFilter.toUpperCase() ) >= 0 + && $scope.searchProperty.indexOf( key ) > -1 + ) { + gotData = true; + break; + } + } + } + // if there's no search-key attribute, we use this one. Much better on performance. + else { + for ( var key in $scope.localModel[ i ] ) { + if ( + typeof $scope.localModel[ i ][ key ] !== 'boolean' + && String( $scope.localModel[ i ][ key ] ).toUpperCase().indexOf( $scope.inputLabel.labelFilter.toUpperCase() ) >= 0 + ) { + gotData = true; + break; + } + } + } + + if ( gotData === true ) { + // push + $scope.filteredModel.push( $scope.localModel[ i ] ); + } + } + + // if it's group start + if ( typeof $scope.localModel[ i ][ $scope.groupProperty ] !== 'undefined' && $scope.localModel[ i ][ $scope.groupProperty ] === true ) { + + if ( typeof $scope.filteredModel[ $scope.filteredModel.length - 1 ][ $scope.groupProperty ] !== 'undefined' + && $scope.filteredModel[ $scope.filteredModel.length - 1 ][ $scope.groupProperty ] === false ) { + $scope.filteredModel.pop(); + } + else { + $scope.filteredModel.push( $scope.localModel[ i ] ); + } + } + } + + $scope.filteredModel.reverse(); + + $timeout( function() { + + $scope.getFormElements(); + + // Callback: on filter change + if ( $scope.inputLabel.labelFilter.length > vMinSearchLength ) { + + var filterObj = []; + + angular.forEach( $scope.filteredModel, function( value, key ) { + if ( typeof value !== 'undefined' ) { + if ( typeof value[ $scope.groupProperty ] === 'undefined' ) { + var tempObj = angular.copy( value ); + var index = filterObj.push( tempObj ); + delete filterObj[ index - 1 ][ $scope.indexProperty ]; + delete filterObj[ index - 1 ][ $scope.spacingProperty ]; + } + } + }); + + $scope.onSearchChange({ + data: + { + keyword: $scope.inputLabel.labelFilter, + result: filterObj + } + }); + } + },0); + }; + + // List all the input elements. + // This function will be called everytime the filter is updated. Not good for performance, but oh well.. + $scope.getFormElements = function() { + formElements = []; + // Get helper - select & reset buttons + var selectButtons = element.children().children().next().children().children()[ 0 ].getElementsByTagName( 'button' ); + // Get helper - search + var inputField = element.children().children().next().children().children().next()[ 0 ].getElementsByTagName( 'input' ); + // Get helper - clear button + var clearButton = element.children().children().next().children().children().next()[ 0 ].getElementsByTagName( 'button' ); + // Get checkboxes + var checkboxes = element.children().children().next().children().next()[ 0 ].getElementsByTagName( 'input' ); + // Push them into global array formElements[] + for ( var i = 0; i < selectButtons.length ; i++ ) { formElements.push( selectButtons[ i ] ); } + for ( var i = 0; i < inputField.length ; i++ ) { formElements.push( inputField[ i ] ); } + for ( var i = 0; i < clearButton.length ; i++ ) { formElements.push( clearButton[ i ] ); } + for ( var i = 0; i < checkboxes.length ; i++ ) { formElements.push( checkboxes[ i ] ); } + + } + + // check if an item has $scope.groupProperty (be it true or false) + $scope.isGroupMarker = function( item , type ) { + if ( typeof item[ $scope.groupProperty ] !== 'undefined' && item[ $scope.groupProperty ] === type ) return true; + return false; + } + + $scope.removeGroupEndMarker = function( item ) { + if ( typeof item[ $scope.groupProperty ] !== 'undefined' && item[ $scope.groupProperty ] === false ) return false; + return true; + } + + + // Show or hide a helper element + $scope.displayHelper = function( elementString ) { + + if ( attrs.selectionMode && $scope.selectionMode.toUpperCase() === 'SINGLE' ) { + + switch( elementString.toUpperCase() ) { + case 'ALL': + return false; + break; + case 'NONE': + return false; + break; + case 'RESET': + if ( typeof attrs.helperElements === 'undefined' ) { + return true; + } + else if ( attrs.helperElements && $scope.helperElements.toUpperCase().indexOf( 'RESET' ) >= 0 ) { + return true; + } + break; + case 'FILTER': + if ( typeof attrs.helperElements === 'undefined' ) { + return true; + } + if ( attrs.helperElements && $scope.helperElements.toUpperCase().indexOf( 'FILTER' ) >= 0 ) { + return true; + } + break; + default: + break; + } + + return false; + } + + else { + if ( typeof attrs.helperElements === 'undefined' ) { + return true; + } + if ( attrs.helperElements && $scope.helperElements.toUpperCase().indexOf( elementString.toUpperCase() ) >= 0 ) { + return true; + } + return false; + } + } + + // call this function when an item is clicked + $scope.syncItems = function( item, e, ng_repeat_index ) { + + e.preventDefault(); + e.stopPropagation(); + + // if the directive is globaly disabled, do nothing + if ( typeof attrs.disableProperty !== 'undefined' && item[ $scope.disableProperty ] === true ) { + return false; + } + + // if item is disabled, do nothing + if ( typeof attrs.isDisabled !== 'undefined' && $scope.isDisabled === true ) { + return false; + } + + // if end group marker is clicked, do nothing + if ( typeof item[ $scope.groupProperty ] !== 'undefined' && item[ $scope.groupProperty ] === false ) { + return false; + } + + var index = $scope.filteredModel.indexOf( item ); + + // if the start of group marker is clicked ( only for multiple selection! ) + // how it works: + // - if, in a group, there are items which are not selected, then they all will be selected + // - if, in a group, all items are selected, then they all will be de-selected + if ( typeof item[ $scope.groupProperty ] !== 'undefined' && item[ $scope.groupProperty ] === true ) { + + // this is only for multiple selection, so if selection mode is single, do nothing + if ( attrs.selectionMode && $scope.selectionMode.toUpperCase() === 'SINGLE' ) { + return false; + } + + var i,j,k; + var startIndex = 0; + var endIndex = $scope.filteredModel.length - 1; + var tempArr = []; + + // nest level is to mark the depth of the group. + // when you get into a group (start group marker), nestLevel++ + // when you exit a group (end group marker), nextLevel-- + var nestLevel = 0; + + // we loop throughout the filtered model (not whole model) + for( i = index ; i < $scope.filteredModel.length ; i++) { + + // this break will be executed when we're done processing each group + if ( nestLevel === 0 && i > index ) + { + break; + } + + if ( typeof $scope.filteredModel[ i ][ $scope.groupProperty ] !== 'undefined' && $scope.filteredModel[ i ][ $scope.groupProperty ] === true ) { + + // To cater multi level grouping + if ( tempArr.length === 0 ) { + startIndex = i + 1; + } + nestLevel = nestLevel + 1; + } + + // if group end + else if ( typeof $scope.filteredModel[ i ][ $scope.groupProperty ] !== 'undefined' && $scope.filteredModel[ i ][ $scope.groupProperty ] === false ) { + + nestLevel = nestLevel - 1; + + // cek if all are ticked or not + if ( tempArr.length > 0 && nestLevel === 0 ) { + + var allTicked = true; + + endIndex = i; + + for ( j = 0; j < tempArr.length ; j++ ) { + if ( typeof tempArr[ j ][ $scope.tickProperty ] !== 'undefined' && tempArr[ j ][ $scope.tickProperty ] === false ) { + allTicked = false; + break; + } + } + + if ( allTicked === true ) { + for ( j = startIndex; j <= endIndex ; j++ ) { + if ( typeof $scope.filteredModel[ j ][ $scope.groupProperty ] === 'undefined' ) { + if ( typeof attrs.disableProperty === 'undefined' ) { + $scope.filteredModel[ j ][ $scope.tickProperty ] = false; + // we refresh input model as well + inputModelIndex = $scope.filteredModel[ j ][ $scope.indexProperty ]; + $scope.localModel[ inputModelIndex ][ $scope.tickProperty ] = false; + } + else if ( $scope.filteredModel[ j ][ $scope.disableProperty ] !== true ) { + $scope.filteredModel[ j ][ $scope.tickProperty ] = false; + // we refresh input model as well + inputModelIndex = $scope.filteredModel[ j ][ $scope.indexProperty ]; + $scope.localModel[ inputModelIndex ][ $scope.tickProperty ] = false; + } + } + } + } + + else { + for ( j = startIndex; j <= endIndex ; j++ ) { + if ( typeof $scope.filteredModel[ j ][ $scope.groupProperty ] === 'undefined' ) { + if ( typeof attrs.disableProperty === 'undefined' ) { + $scope.filteredModel[ j ][ $scope.tickProperty ] = true; + // we refresh input model as well + inputModelIndex = $scope.filteredModel[ j ][ $scope.indexProperty ]; + $scope.localModel[ inputModelIndex ][ $scope.tickProperty ] = true; + + } + else if ( $scope.filteredModel[ j ][ $scope.disableProperty ] !== true ) { + $scope.filteredModel[ j ][ $scope.tickProperty ] = true; + // we refresh input model as well + inputModelIndex = $scope.filteredModel[ j ][ $scope.indexProperty ]; + $scope.localModel[ inputModelIndex ][ $scope.tickProperty ] = true; + } + } + } + } + } + } + + // if data + else { + tempArr.push( $scope.filteredModel[ i ] ); + } + } + } + + // if an item (not group marker) is clicked + else { + + // If it's single selection mode + if ( attrs.selectionMode && $scope.selectionMode.toUpperCase() === 'SINGLE' ) { + + // first, set everything to false + for( i=0 ; i < $scope.filteredModel.length ; i++) { + $scope.filteredModel[ i ][ $scope.tickProperty ] = false; + } + for( i=0 ; i < $scope.localModel.length ; i++) { + $scope.localModel[ i ][ $scope.tickProperty ] = false; + } + + // then set the clicked item to true + $scope.filteredModel[ index ][ $scope.tickProperty ] = true; + + // we then hide the checkbox layer + $scope.toggleCheckboxes( e ); + } + + // Multiple + else { + $scope.filteredModel[ index ][ $scope.tickProperty ] = !$scope.filteredModel[ index ][ $scope.tickProperty ]; + } + + // we refresh input model as well + var inputModelIndex = $scope.filteredModel[ index ][ $scope.indexProperty ]; + $scope.localModel[ inputModelIndex ][ $scope.tickProperty ] = $scope.filteredModel[ index ][ $scope.tickProperty ]; + } + + // we execute the callback function here + clickedItem = angular.copy( item ); + if ( clickedItem !== null ) { + $timeout( function() { + delete clickedItem[ $scope.indexProperty ]; + delete clickedItem[ $scope.spacingProperty ]; + $scope.onItemClick( { data: clickedItem } ); + clickedItem = null; + }, 0 ); + } + + $scope.refreshOutputModel(); + $scope.refreshButton(); + + // We update the index here + prevTabIndex = $scope.tabIndex; + $scope.tabIndex = ng_repeat_index + helperItemsLength; + + // Set focus on the hidden checkbox + e.target.focus(); + + // set & remove CSS style + $scope.removeFocusStyle( prevTabIndex ); + $scope.setFocusStyle( $scope.tabIndex ); + } + + // update $scope.outputModel + $scope.refreshOutputModel = function() { + + $scope.outputModel = []; + + angular.forEach( $scope.localModel, function( value, key ) { + if ( typeof value !== 'undefined' ) { + if ( typeof value[ $scope.groupProperty ] === 'undefined' ) { + if ( value[ $scope.tickProperty ] === true ) { + // selectedItems.push( value ); + var temp = angular.copy( value ); + var index = $scope.outputModel.push( temp ); + delete $scope.outputModel[ index - 1 ][ $scope.indexProperty ]; + delete $scope.outputModel[ index - 1 ][ $scope.spacingProperty ]; + } + } + } + }); + } + + // refresh button label + $scope.refreshButton = function() { + + $scope.varButtonLabel = ''; + var ctr = 0; + + // refresh button label... + if ( $scope.outputModel.length === 0 ) { + // https://github.com/isteven/angular-multi-select/pull/19 + $scope.varButtonLabel = $scope.lang.nothingSelected; + } + else { + var tempMaxLabels = $scope.outputModel.length; + if ( typeof $scope.maxLabels !== 'undefined' && $scope.maxLabels !== '' ) { + tempMaxLabels = $scope.maxLabels; + } + + // if max amount of labels displayed.. + if ( $scope.outputModel.length > tempMaxLabels ) { + $scope.more = true; + } + else { + $scope.more = false; + } + + angular.forEach( $scope.outputModel, function( value, key ) { + if ( typeof value !== 'undefined' ) { + if ( ctr < tempMaxLabels ) { + $scope.varButtonLabel += ( $scope.varButtonLabel.length > 0 ? '</div>, <div class="buttonLabel">' : '<div class="buttonLabel">') + $scope.writeLabel( value, 'buttonLabel' ); + } + ctr++; + } + }); + + if ( $scope.more === true ) { + // https://github.com/isteven/angular-multi-select/pull/16 + if (tempMaxLabels > 0) { + $scope.varButtonLabel += ', ... '; + } + $scope.varButtonLabel += '(' + $scope.outputModel.length + ')'; + } + } + $scope.varButtonLabel = $sce.trustAsHtml( $scope.varButtonLabel + '<span class="caret"></span>' ); + } + + // Check if a checkbox is disabled or enabled. It will check the granular control (disableProperty) and global control (isDisabled) + // Take note that the granular control has higher priority. + $scope.itemIsDisabled = function( item ) { + + if ( typeof attrs.disableProperty !== 'undefined' && item[ $scope.disableProperty ] === true ) { + return true; + } + else { + if ( $scope.isDisabled === true ) { + return true; + } + else { + return false; + } + } + + } + + // A simple function to parse the item label settings. Used on the buttons and checkbox labels. + $scope.writeLabel = function( item, type ) { + + // type is either 'itemLabel' or 'buttonLabel' + var temp = $scope[ type ].split( ' ' ); + var label = ''; + + angular.forEach( temp, function( value, key ) { + item[ value ] && ( label += ' ' + value.split( '.' ).reduce( function( prev, current ) { + return prev[ current ]; + }, item )); + }); + if ( type.toUpperCase() === 'BUTTONLABEL' ) { + return label; + } + return $sce.trustAsHtml( label ); + } + + // UI operations to show/hide checkboxes based on click event.. + $scope.toggleCheckboxes = function( e ) { + + // We grab the button + var clickedEl = element.children()[0]; + + // Just to make sure.. had a bug where key events were recorded twice + angular.element( document ).off( 'click', $scope.externalClickListener ); + angular.element( document ).off( 'keydown', $scope.keyboardListener ); + + // clear filter + $scope.inputLabel.labelFilter = ''; + $scope.updateFilter(); + + // The idea below was taken from another multi-select directive - https://github.com/amitava82/angular-multiselect + // His version is awesome if you need a more simple multi-select approach. + + // close + if ( angular.element( checkBoxLayer ).hasClass( 'show' )) { + + angular.element( checkBoxLayer ).removeClass( 'show' ); + angular.element( clickedEl ).removeClass( 'buttonClicked' ); + angular.element( document ).off( 'click', $scope.externalClickListener ); + angular.element( document ).off( 'keydown', $scope.keyboardListener ); + + // clear the focused element; + $scope.removeFocusStyle( $scope.tabIndex ); + + // close callback + $timeout( function() { + $scope.onClose(); + }, 0 ); + + // set focus on button again + element.children().children()[ 0 ].focus(); + } + // open + else + { + helperItems = []; + helperItemsLength = 0; + + angular.element( checkBoxLayer ).addClass( 'show' ); + angular.element( clickedEl ).addClass( 'buttonClicked' ); + + // Attach change event listener on the input filter. + // We need this because ng-change is apparently not an event listener. + angular.element( document ).on( 'click', $scope.externalClickListener ); + angular.element( document ).on( 'keydown', $scope.keyboardListener ); + + // to get the initial tab index, depending on how many helper elements we have. + // priority is to always focus it on the input filter + $scope.getFormElements(); + $scope.tabIndex = 0; + + var helperContainer = angular.element( element[ 0 ].querySelector( '.helperContainer' ) )[0]; + + if ( typeof helperContainer !== 'undefined' ) { + for ( var i = 0; i < helperContainer.getElementsByTagName( 'BUTTON' ).length ; i++ ) { + helperItems[ i ] = helperContainer.getElementsByTagName( 'BUTTON' )[ i ]; + } + helperItemsLength = helperItems.length + helperContainer.getElementsByTagName( 'INPUT' ).length; + } + + // focus on the filter element on open. + if ( element[ 0 ].querySelector( '.inputFilter' ) ) { + element[ 0 ].querySelector( '.inputFilter' ).focus(); + $scope.tabIndex = $scope.tabIndex + helperItemsLength - 2; + } + // if there's no filter then just focus on the first checkbox item + else { + formElements[ $scope.tabIndex ].focus(); + } + + // open callback + $scope.onOpen(); + } + } + + // handle clicks outside the button / multi select layer + $scope.externalClickListener = function( e ) { + + var targetsArr = element.find( e.target.tagName ); + for (var i = 0; i < targetsArr.length; i++) { + if ( e.target == targetsArr[i] ) { + return; + } + } + + angular.element( checkBoxLayer.previousSibling ).removeClass( 'buttonClicked' ); + angular.element( checkBoxLayer ).removeClass( 'show' ); + angular.element( document ).off( 'click', $scope.externalClickListener ); + angular.element( document ).off( 'keydown', $scope.keyboardListener ); + + // close callback + $timeout( function() { + $scope.onClose(); + }, 0 ); + + // set focus on button again + element.children().children()[ 0 ].focus(); + } + + // select All / select None / reset buttons + $scope.select = function( type, e ) { + + var helperIndex = helperItems.indexOf( e.target ); + $scope.tabIndex = helperIndex; + + switch( type.toUpperCase() ) { + case 'ALL': + angular.forEach( $scope.filteredModel, function( value, key ) { + if ( typeof value !== 'undefined' && value[ $scope.disableProperty ] !== true ) { + if ( typeof value[ $scope.groupProperty ] === 'undefined' ) { + value[ $scope.tickProperty ] = true; + } + } + }); + $scope.refreshOutputModel(); + $scope.refreshButton(); + $scope.onSelectAll(); + break; + case 'NONE': + angular.forEach( $scope.filteredModel, function( value, key ) { + if ( typeof value !== 'undefined' && value[ $scope.disableProperty ] !== true ) { + if ( typeof value[ $scope.groupProperty ] === 'undefined' ) { + value[ $scope.tickProperty ] = false; + } + } + }); + $scope.refreshOutputModel(); + $scope.refreshButton(); + $scope.onSelectNone(); + break; + case 'RESET': + angular.forEach( $scope.filteredModel, function( value, key ) { + if ( typeof value[ $scope.groupProperty ] === 'undefined' && typeof value !== 'undefined' && value[ $scope.disableProperty ] !== true ) { + var temp = value[ $scope.indexProperty ]; + value[ $scope.tickProperty ] = $scope.backUp[ temp ][ $scope.tickProperty ]; + } + }); + $scope.refreshOutputModel(); + $scope.refreshButton(); + $scope.onReset(); + break; + case 'CLEAR': + $scope.tabIndex = $scope.tabIndex + 1; + $scope.onClear(); + break; + case 'FILTER': + $scope.tabIndex = helperItems.length - 1; + break; + default: + } + } + + // just to create a random variable name + function genRandomString( length ) { + var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; + var temp = ''; + for( var i=0; i < length; i++ ) { + temp += possible.charAt( Math.floor( Math.random() * possible.length )); + } + return temp; + } + + // count leading spaces + $scope.prepareGrouping = function() { + var spacing = 0; + angular.forEach( $scope.filteredModel, function( value, key ) { + value[ $scope.spacingProperty ] = spacing; + if ( value[ $scope.groupProperty ] === true ) { + spacing+=2; + } + else if ( value[ $scope.groupProperty ] === false ) { + spacing-=2; + } + }); + } + + // prepare original index + $scope.prepareIndex = function() { + var ctr = 0; + angular.forEach( $scope.filteredModel, function( value, key ) { + value[ $scope.indexProperty ] = ctr; + ctr++; + }); + } + + // navigate using up and down arrow + $scope.keyboardListener = function( e ) { + + var key = e.keyCode ? e.keyCode : e.which; + var isNavigationKey = false; + + // ESC key (close) + if ( key === 27 ) { + e.preventDefault(); + $scope.toggleCheckboxes( e ); + } + + // next element ( tab, down & right key ) + else if ( key === 40 || key === 39 || ( !e.shiftKey && key == 9 ) ) { + + isNavigationKey = true; + prevTabIndex = $scope.tabIndex; + $scope.tabIndex++; + if ( $scope.tabIndex > formElements.length - 1 ) { + $scope.tabIndex = 0; + prevTabIndex = formElements.length - 1; + } + while ( formElements[ $scope.tabIndex ].disabled === true ) { + $scope.tabIndex++; + if ( $scope.tabIndex > formElements.length - 1 ) { + $scope.tabIndex = 0; + } + } + } + + // prev element ( shift+tab, up & left key ) + else if ( key === 38 || key === 37 || ( e.shiftKey && key == 9 ) ) { + isNavigationKey = true; + prevTabIndex = $scope.tabIndex; + $scope.tabIndex--; + if ( $scope.tabIndex < 0 ) { + $scope.tabIndex = formElements.length - 1; + prevTabIndex = 0; + } + while ( formElements[ $scope.tabIndex ].disabled === true ) { + $scope.tabIndex--; + if ( $scope.tabIndex < 0 ) { + $scope.tabIndex = formElements.length - 1; + } + } + } + + if ( isNavigationKey === true ) { + + + e.preventDefault(); + + // set focus on the checkbox + formElements[ $scope.tabIndex ].focus(); + var actEl = document.activeElement; + + if ( actEl.type.toUpperCase() === 'CHECKBOX' ) { + $scope.setFocusStyle( $scope.tabIndex ); + $scope.removeFocusStyle( prevTabIndex ); + } + else { + $scope.removeFocusStyle( prevTabIndex ); + $scope.removeFocusStyle( helperItemsLength ); + $scope.removeFocusStyle( formElements.length - 1 ); + } + } + + isNavigationKey = false; + } + + // set (add) CSS style on selected row + $scope.setFocusStyle = function( tabIndex ) { + angular.element( formElements[ tabIndex ] ).parent().parent().parent().addClass( 'multiSelectFocus' ); + } + + // remove CSS style on selected row + $scope.removeFocusStyle = function( tabIndex ) { + angular.element( formElements[ tabIndex ] ).parent().parent().parent().removeClass( 'multiSelectFocus' ); + } + + /***************************************************** + * + * Initializations + * + *****************************************************/ + + // Unfortunately I need to add these grouping properties + var tempStr = genRandomString( 5 ); + $scope.indexProperty = 'idx_' + tempStr; + $scope.spacingProperty = 'spc_' + tempStr; + + // set orientation css + if ( typeof attrs.orientation !== 'undefined' ) { + + if ( attrs.orientation.toUpperCase() === 'HORIZONTAL' ) { + $scope.orientationH = true; + $scope.orientationV = false; + } + else + { + $scope.orientationH = false; + $scope.orientationV = true; + } + } + + // get elements required for DOM operation + checkBoxLayer = element.children().children().next()[0]; + + // set max-height property if provided + if ( typeof attrs.maxHeight !== 'undefined' ) { + var layer = element.children().children().children()[0]; + angular.element( layer ).attr( "style", "height:" + $scope.maxHeight + "; overflow-y:scroll;" ); + } + + // icons.. I guess you can use <img> tag here if you want to. + var icon = {}; + icon.selectAll = '✓' // a tick icon + icon.selectNone = '×' // x icon + icon.reset = '↶' // undo icon + + // configurable button labels + if ( typeof attrs.translation !== 'undefined' ) { + $scope.lang.selectAll = $sce.trustAsHtml( icon.selectAll + ' ' + $scope.translation.selectAll ); + $scope.lang.selectNone = $sce.trustAsHtml( icon.selectNone + ' ' + $scope.translation.selectNone ); + $scope.lang.reset = $sce.trustAsHtml( icon.reset + ' ' + $scope.translation.reset ); + $scope.lang.search = $scope.translation.search; + $scope.lang.nothingSelected = $sce.trustAsHtml( $scope.translation.nothingSelected ); + } + else { + $scope.lang.selectAll = $sce.trustAsHtml( icon.selectAll + ' Select All' ); + $scope.lang.selectNone = $sce.trustAsHtml( icon.selectNone + ' Select None' ); + $scope.lang.reset = $sce.trustAsHtml( icon.reset + ' Reset' ); + $scope.lang.search = 'Search...'; + $scope.lang.nothingSelected = 'None Selected'; + } + + // min length of keyword to trigger the filter function + if ( typeof attrs.MinSearchLength !== 'undefined' && parseInt( attrs.MinSearchLength ) > 0 ) { + vMinSearchLength = Math.floor( parseInt( attrs.MinSearchLength ) ); + } + + /**************************************************** + * + * Logic starts here, initiated by watch 1 & watch 2 + * + ****************************************************/ + + // watch1, for changes in input model property + // updates multi-select when user select/deselect a single checkbox programatically + // https://github.com/isteven/angular-multi-select/issues/8 + $scope.$watch( 'inputModel' , function( newVal ) { + if ( newVal ) { + $scope.localModel = angular.copy( $scope.inputModel ); + $scope.refreshOutputModel(); + $scope.refreshButton(); + } + }, true ); + + // watch2 for changes in input model as a whole + // this on updates the multi-select when a user load a whole new input-model. We also update the $scope.backUp variable + $scope.$watch( 'localModel' , function( newVal ) { + if ( newVal ) { + $scope.backUp = angular.copy( $scope.localModel ); + $scope.updateFilter(); + $scope.prepareGrouping(); + $scope.prepareIndex(); + $scope.refreshOutputModel(); + $scope.refreshButton(); + } + }); + + // watch for changes in directive state (disabled or enabled) + $scope.$watch( 'isDisabled' , function( newVal ) { + $scope.isDisabled = newVal; + }); + + // this is for touch enabled devices. We don't want to hide checkboxes on scroll. + angular.element( document ).on( 'touchstart', function( e ) { + $scope.$apply( function() { + scrolled = false; + }); + }); + + // also for touch enabled devices + angular.element( document ).on( 'touchmove', function( e ) { + $scope.$apply( function() { + scrolled = true; + }); + }); + } + } +}]); + |