225 lines
7.6 KiB
JavaScript
225 lines
7.6 KiB
JavaScript
var style = document.createElement('style');
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style.setAttribute("id","multiselect_dropdown_styles");
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style.innerHTML = `
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.multiselect-dropdown{
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display: inline-block;
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padding: 2px 5px 0px 5px;
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border-radius: 4px;
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border: solid 1px #ced4da;
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background-color: white;
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position: relative;
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background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
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background-repeat: no-repeat;
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background-position: right .75rem center;
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background-size: 16px 12px;
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}
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.multiselect-dropdown span.optext, .multiselect-dropdown span.placeholder{
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margin-right:0.5em;
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margin-bottom:2px;
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padding:1px 0;
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border-radius: 4px;
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display:inline-block;
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}
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.multiselect-dropdown span.optext{
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background-color: rgba(226, 232, 240, 0.8);
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padding:1px 0.75em;
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}
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.multiselect-dropdown span.optext .optdel {
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float: right;
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margin: 0 -6px 1px 5px;
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font-size: 0.7em;
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margin-top: 2px;
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cursor: pointer;
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color: #666;
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}
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.multiselect-dropdown span.optext .optdel:hover { color: #c66;}
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.multiselect-dropdown span.placeholder{
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color:#ced4da;
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}
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.multiselect-dropdown-list-wrapper{
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box-shadow: gray 0 3px 8px;
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z-index: 100;
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padding:2px;
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border-radius: 4px;
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border: solid 1px #ced4da;
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display: none;
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margin: -1px;
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position: absolute;
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top:0;
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left: 0;
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right: 0;
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background: white;
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}
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.multiselect-dropdown-list-wrapper .multiselect-dropdown-search{
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margin-bottom:5px;
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}
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.multiselect-dropdown-list{
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padding:2px;
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height: 15rem;
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overflow-y:auto;
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overflow-x: hidden;
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}
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.multiselect-dropdown-list::-webkit-scrollbar {
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width: 6px;
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}
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.multiselect-dropdown-list::-webkit-scrollbar-thumb {
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background-color: #bec4ca;
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border-radius:3px;
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}
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.multiselect-dropdown-list div{
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padding: 5px;
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}
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.multiselect-dropdown-list input{
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height: 1.15em;
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width: 1.15em;
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margin-right: 0.35em;
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}
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.multiselect-dropdown-list div.checked{
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}
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.multiselect-dropdown-list div:hover{
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background-color: #ced4da;
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}
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.multiselect-dropdown span.maxselected {width:100%;}
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.multiselect-dropdown-all-selector {border-bottom:solid 1px #999;}
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`;
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document.head.appendChild(style);
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function MultiselectDropdown(options){
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var config={
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search:true,
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height:'15rem',
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placeholder:'Auswählen',
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txtSelected:'ausgewählt',
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txtAll:'All',
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txtRemove: 'Löschen',
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txtSearch:'Suchen',
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...options
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};
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function newEl(tag,attrs){
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var e=document.createElement(tag);
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if(attrs!==undefined) Object.keys(attrs).forEach(k=>{
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if(k==='class') { Array.isArray(attrs[k]) ? attrs[k].forEach(o=>o!==''?e.classList.add(o):0) : (attrs[k]!==''?e.classList.add(attrs[k]):0)}
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else if(k==='style'){
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Object.keys(attrs[k]).forEach(ks=>{
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e.style[ks]=attrs[k][ks];
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});
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}
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else if(k==='text'){attrs[k]===''?e.innerHTML=' ':e.innerText=attrs[k]}
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else e[k]=attrs[k];
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});
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return e;
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}
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document.querySelectorAll("select[multiple]").forEach((el,k)=>{
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var div=newEl('div',{class:'multiselect-dropdown',style:{width:config.style?.width??el.clientWidth+'px',padding:config.style?.padding??''}});
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el.style.display='none';
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el.parentNode.insertBefore(div,el.nextSibling);
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var listWrap=newEl('div',{class:'multiselect-dropdown-list-wrapper'});
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var list=newEl('div',{class:'multiselect-dropdown-list',style:{height:config.height}});
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var search=newEl('input',{class:['multiselect-dropdown-search'].concat([config.searchInput?.class??'form-control']),style:{width:'100%',display:el.attributes['multiselect-search']?.value==='true'?'block':'none'},placeholder:config.txtSearch});
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listWrap.appendChild(search);
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div.appendChild(listWrap);
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listWrap.appendChild(list);
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el.loadOptions=()=>{
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list.innerHTML='';
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if(el.attributes['multiselect-select-all']?.value=='true'){
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var op=newEl('div',{class:'multiselect-dropdown-all-selector'})
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var ic=newEl('input',{type:'checkbox'});
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op.appendChild(ic);
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op.appendChild(newEl('label',{text:config.txtAll}));
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op.addEventListener('click',()=>{
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op.classList.toggle('checked');
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op.querySelector("input").checked=!op.querySelector("input").checked;
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var ch=op.querySelector("input").checked;
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list.querySelectorAll(":scope > div:not(.multiselect-dropdown-all-selector)")
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.forEach(i=>{if(i.style.display!=='none'){i.querySelector("input").checked=ch; i.optEl.selected=ch}});
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el.dispatchEvent(new Event('change'));
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});
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ic.addEventListener('click',(ev)=>{
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ic.checked=!ic.checked;
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});
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el.addEventListener('change', (ev)=>{
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let itms=Array.from(list.querySelectorAll(":scope > div:not(.multiselect-dropdown-all-selector)")).filter(e=>e.style.display!=='none')
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let existsNotSelected=itms.find(i=>!i.querySelector("input").checked);
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if(ic.checked && existsNotSelected) ic.checked=false;
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else if(ic.checked==false && existsNotSelected===undefined) ic.checked=true;
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});
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list.appendChild(op);
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}
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Array.from(el.options).map(o=>{
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var op=newEl('div',{class:o.selected?'checked':'',optEl:o})
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var ic=newEl('input',{type:'checkbox',checked:o.selected});
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op.appendChild(ic);
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op.appendChild(newEl('label',{text:o.text}));
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op.addEventListener('click',()=>{
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op.classList.toggle('checked');
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op.querySelector("input").checked=!op.querySelector("input").checked;
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op.optEl.selected=!!!op.optEl.selected;
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el.dispatchEvent(new Event('change'));
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});
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ic.addEventListener('click',(ev)=>{
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ic.checked=!ic.checked;
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});
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o.listitemEl=op;
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list.appendChild(op);
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});
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div.listEl=listWrap;
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div.refresh=()=>{
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div.querySelectorAll('span.optext, span.placeholder').forEach(t=>div.removeChild(t));
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var sels=Array.from(el.selectedOptions);
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if(sels.length>(el.attributes['multiselect-max-items']?.value??5)){
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div.appendChild(newEl('span',{class:['optext','maxselected'],text:sels.length+' '+config.txtSelected}));
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}
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else{
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sels.map(x=>{
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var c=newEl('span',{class:'optext',text:x.text, srcOption: x});
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if((el.attributes['multiselect-hide-x']?.value !== 'true'))
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c.appendChild(newEl('span',{class:'optdel',text:'🗙',title:config.txtRemove, onclick:(ev)=>{c.srcOption.listitemEl.dispatchEvent(new Event('click'));div.refresh();ev.stopPropagation();}}));
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div.appendChild(c);
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});
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}
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if(0==el.selectedOptions.length) div.appendChild(newEl('span',{class:'placeholder',text:el.attributes['placeholder']?.value??config.placeholder}));
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};
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div.refresh();
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}
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el.loadOptions();
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search.addEventListener('input',()=>{
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list.querySelectorAll(":scope div:not(.multiselect-dropdown-all-selector)").forEach(d=>{
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var txt=d.querySelector("label").innerText.toUpperCase();
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d.style.display=txt.includes(search.value.toUpperCase())?'block':'none';
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});
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});
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div.addEventListener('click',()=>{
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div.listEl.style.display='block';
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search.focus();
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search.select();
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});
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document.addEventListener('click', function(event) {
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if (!div.contains(event.target)) {
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listWrap.style.display='none';
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div.refresh();
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}
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});
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});
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}
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window.addEventListener('load',()=>{
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MultiselectDropdown(window.MultiselectDropdownOptions);
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});
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