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<?php |
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/* For licensing terms, see /license.txt */ |
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/** |
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* A drop down list with all languages to use with QuickForm. |
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*/ |
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class SelectAjax extends HTML_QuickForm_select |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct($elementName, $elementLabel = '', $options = null, $attributes = null) |
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{ |
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parent::__construct($elementName, $elementLabel, $options, $attributes); |
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} |
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/** |
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* The ajax call must contain an array of id and text. |
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* |
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* @return string |
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*/ |
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public function toHtml() |
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{ |
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$iso = api_get_language_isocode(api_get_interface_language()); |
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$formatResult = $this->getAttribute('formatResult'); |
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$formatSelection = $this->getAttribute('formatSelection'); |
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$formatCondition = ''; |
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if (!empty($formatResult)) { |
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$formatCondition .= ', |
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templateResult : '.$formatResult; |
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} |
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if (!empty($formatSelection)) { |
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$formatCondition .= ', |
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templateSelection : '.$formatSelection; |
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} |
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$width = 'element'; |
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$givenWidth = '100%'; |
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if (!empty($givenWidth)) { |
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$width = $givenWidth; |
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} |
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//Get the minimumInputLength for select2 |
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$minimumInputLength = $this->getAttribute('minimumInputLength') > 3 ? |
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$this->getAttribute('minimumInputLength') : 3 |
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; |
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$plHolder = $this->getAttribute('placeholder'); |
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if (empty($plHolder)) { |
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$plHolder = preg_replace("/'/", "\\'", get_lang('SelectAnOption')); |
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} |
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$id = $this->getAttribute('id'); |
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if (empty($id)) { |
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$id = $this->getAttribute('name'); |
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$this->setAttribute('id', $id); |
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} |
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// URL must return ajax json_encode arrady [items => [['id'=>1, 'text'='content']] |
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$url = $this->getAttribute('url'); |
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if (!$url) { |
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$url = $this->getAttribute('url_function'); |
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} else { |
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$url = "'$url'"; |
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} |
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$tagsAttr = $this->getAttribute('tags'); |
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$multipleAttr = $this->getAttribute('multiple'); |
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$tags = !empty($tagsAttr) ? (bool) $tagsAttr : false; |
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$tags = $tags ? 'true' : 'false'; |
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$multiple = !empty($multipleAttr) ? (bool) $multipleAttr : false; |
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$multiple = $multiple ? 'true' : 'false'; |
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$max = $this->getAttribute('maximumSelectionLength'); |
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$max = !empty($max) ? "maximumSelectionLength: $max, " : ''; |
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// wait XX milliseconds before triggering the request |
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$delay = ((int) $this->getAttribute('delay')) ?: 1000; |
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$html = <<<JS |
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<script> |
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$(function(){ |
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$('#{$this->getAttribute('id')}').select2({ |
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language: '$iso', |
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placeholder: '$plHolder', |
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allowClear: true, |
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width: '$width', |
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minimumInputLength: '$minimumInputLength', |
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tags: $tags, |
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ajax: { |
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url: $url, |
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delay: $delay, |
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dataType: 'json', |
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data: function(params) { |
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return { |
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q: params.term, // search term |
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page_limit: 10, |
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}; |
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}, |
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processResults: function (data, page) { |
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// Parse the results into the format expected by Select2 |
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if (data.items) { |
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return { |
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results: data.items |
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}; |
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} |
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return { |
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results: '' |
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}; |
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} |
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} |
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$formatCondition |
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}); |
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}); |
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</script> |
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JS; |
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$this->removeAttribute('formatResult'); |
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$this->removeAttribute('formatSelection'); |
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$this->removeAttribute('minimumInputLength'); |
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$this->removeAttribute('maximumSelectionLength'); |
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$this->removeAttribute('tags'); |
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$this->removeAttribute('placeholder'); |
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$this->removeAttribute('class'); |
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$this->removeAttribute('url'); |
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$this->removeAttribute('url_function'); |
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$this->setAttribute('style', 'width: 100%;'); |
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return parent::toHtml().$html; |
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} |
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/** |
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* We check the options and return only the values that _could_ have been |
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* selected. We also return a scalar value if select is not "multiple". |
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*/ |
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public function exportValue(&$submitValues, $assoc = false) |
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{ |
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$value = $this->_findValue($submitValues); |
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if (!$value) { |
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$value = ''; |
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} |
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return $this->_prepareValue($value, $assoc); |
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} |
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public static function templateResultForUsersInCourse(): string |
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{ |
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return "function (state) { |
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if (state.loading) { |
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return state.text; |
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} |
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var \$container = \$( |
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'<div class=\"select2-result-user clearfix\">' + |
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'<div class=\"select2-result-user__avatar pull-left\">' + |
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'<img>' + |
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'</div>' + |
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'<div class=\"select2-result-user__info pull-left\">' + |
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'<div class=\"select2-result-user__name\"></div>' + |
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'<div class=\"select2-result-user__username small\"></div>' + |
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'</div>' + |
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'</div>' |
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); |
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\$container.find('.select2-result-user__avatar img') |
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.prop({ 'src': state.avatarUrl, 'alt': state.username }) |
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.css({ 'width': '40px', 'height': '40px' }); |
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\$container.find('.select2-result-user__info').css({ 'paddingLeft': '6px' }); |
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\$container.find('.select2-result-user__name').text(state.completeName); |
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\$container.find('.select2-result-user__username').text(state.username); |
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return \$container; |
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}"; |
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} |
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public static function templateSelectionForUsersInCourse(): string |
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{ |
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return "function (state) { |
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if (!state.id) { |
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return state.text; |
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} |
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if (!state.avatarUrl) { |
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var avatarUrl = $(state.element).data('avatarurl'); |
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var username = $(state.element).data('username'); |
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state.avatarUrl = avatarUrl; |
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state.username = username; |
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state.completeName = state.text; |
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} |
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var \$container = \$('<span><img> ' + state.completeName + '</span>'); |
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\$container.find('img') |
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.prop({ 'src': state.avatarUrl, 'alt': state.username }) |
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.css({ 'width': '20px', 'height': '20px' }); |
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return \$container; |
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}"; |
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} |
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} |
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