'use strict';class jsToolBar{constructor(textarea){if(!textarea){return;}
if(typeof document.selection=='undefined'&&typeof textarea.setSelectionRange=='undefined'){return;}
this.textarea=textarea;this.editor=document.createElement('div');this.editor.className='jstEditor';this.textarea.parentNode.insertBefore(this.editor,this.textarea);this.editor.appendChild(this.textarea);this.toolbar=document.createElement('div');this.toolbar.className='jstElements';if(this.toolbar_bottom){this.editor.parentNode.insertBefore(this.toolbar,this.editor.nextSibling);this.editor.parentNode.classList.add('toolbar_bottom');}else{this.editor.parentNode.insertBefore(this.toolbar,this.editor);this.editor.parentNode.classList.add('toolbar_top');}
this.context=null;this.toolNodes={};}
getMode(){return this.mode;}
setMode(mode='xhtml'){this.mode=mode;}
switchMode(mode='xhtml'){this.draw(mode);}
button(toolName){const tool=this.elements[toolName];if(typeof tool.fn[this.mode]!='function')return null;const b=new jsButton(tool.title,tool.fn[this.mode],this,`jstb_${toolName}`,tool.accesskey);if(tool.icon!=undefined){b.icon=tool.icon;}
return b;}
space(toolName){const tool=new jsSpace(toolName);if(this.elements[toolName].format!=undefined&&!this.elements[toolName].format[this.mode])return null;if(this.elements[toolName].width!==undefined){tool.width=this.elements[toolName].width;}
return tool;}
combo(toolName){const tool=this.elements[toolName];if(tool[this.mode]!=undefined){const length=tool[this.mode].list.length;if(typeof tool[this.mode].fn!='function'||length==0){return null;}
const options={};for(let i=0;i<length;i++){const opt=tool[this.mode].list[i];options[opt]=tool.options[opt];}
return new jsCombo(tool.title,options,this,tool[this.mode].fn);}}
draw(mode){this.setMode(mode);while(this.toolbar.hasChildNodes()){this.toolbar.removeChild(this.toolbar.firstChild);}
this.toolNodes={};let b;let tool;let newTool;for(const i in this.elements){b=this.elements[i];const disabled=b.type==undefined||b.type==''||(b.disabled!=undefined&&b.disabled)||(b.context!=undefined&&b.context!=null&&b.context!=this.context);if(!disabled&&typeof this[b.type]=='function'){tool=this[b.type](i);if(tool)newTool=tool.draw();if(newTool){this.toolNodes[i]=newTool;this.toolbar.appendChild(newTool);}}}}
singleTag(stag=null,etag=stag){if(!stag||!etag){return;}
this.encloseSelection(stag,etag);}
encloseSelection(prefix='',suffix='',fn=null){this.textarea.focus();let start;let end;let sel;let scrollPos;let subst;let res;if(typeof document.selection!='undefined'){sel=document.selection.createRange().text;}else if(typeof this.textarea.setSelectionRange!='undefined'){start=this.textarea.selectionStart;end=this.textarea.selectionEnd;scrollPos=this.textarea.scrollTop;sel=this.textarea.value.substring(start,end);}
if(sel.match(/ $/)){sel=sel.substring(0,sel.length-1);suffix=`${suffix} `;}
if(typeof fn=='function'){res=sel?fn.call(this,sel):fn('');}else{res=sel?sel:'';}
subst=prefix+res+suffix;if(typeof document.selection!='undefined'){document.selection.createRange().text=subst;this.textarea.caretPos-=suffix.length;}else if(typeof this.textarea.setSelectionRange!='undefined'){this.textarea.value=this.textarea.value.substring(0,start)+subst+this.textarea.value.substring(end);if(sel||typeof fn=='function'){this.textarea.setSelectionRange(start+subst.length,start+subst.length);}else if(typeof fn!='function'){this.textarea.setSelectionRange(start+prefix.length,start+prefix.length);}
this.textarea.scrollTop=scrollPos;}}
stripBaseURL(url){if(this.base_url!=''){const pos=url.indexOf(this.base_url);if(pos==0){return url.substr(this.base_url.length);}}
return url;}}
jsToolBar.prototype.base_url='';jsToolBar.prototype.mode='xhtml';jsToolBar.prototype.elements={};jsToolBar.prototype.toolbar_bottom=false;class jsButton{constructor(title,fn,scope,className,accesskey){this.title=title||null;this.fn=fn||(()=>{});this.scope=scope||null;this.className=className||null;this.accesskey=accesskey||null;}
draw(){if(!this.scope)return null;const button=document.createElement('button');button.setAttribute('type','button');if(this.className)button.className=this.className;button.title=this.title;if(this.accesskey)button.accessKey=this.accesskey;const span=document.createElement('span');span.appendChild(document.createTextNode(this.title));button.appendChild(span);if(this.icon!=undefined){button.style.backgroundImage=`url(${this.icon})`;}
if(typeof this.fn=='function'){const This=this;button.onclick=function(){try{This.fn.apply(This.scope,arguments);}catch(e){}
return false;};}
return button;}}
class jsSpace{constructor(id){this.id=id||null;this.width=null;}
draw(){const span=document.createElement('span');if(this.id)span.id=this.id;span.appendChild(document.createTextNode(String.fromCharCode(160)));span.className='jstSpacer';if(this.width)span.style.marginRight=`${this.width}px`;return span;}}
class jsCombo{constructor(title,options,scope,fn,className){this.title=title||null;this.options=options||null;this.scope=scope||null;this.fn=fn||(()=>{});this.className=className||null;}
draw(){if(!this.scope||!this.options)return null;const select=document.createElement('select');if(this.className)select.className=this.className;select.title=this.title;for(const o in this.options){const option=document.createElement('option');option.value=o;option.appendChild(document.createTextNode(this.options[o]));select.appendChild(option);}
const This=this;select.onchange=function(){try{This.fn.call(This.scope,this.value);}catch(e){window.alert(e);}
return false;};return select;}}
jsToolBar.prototype.elements.blocks={type:'combo',title:'block format',options:{none:'-- none --',nonebis:'- block format -',p:'Paragraph',h1:'Header 1',h2:'Header 2',h3:'Header 3',h4:'Header 4',h5:'Header 5',h6:'Header 6',},xhtml:{list:['nonebis','p','h1','h2','h3','h4','h5','h6'],fn(opt){if(opt=='nonebis')this.textarea.focus();else
try{this.singleTag(`<${opt}>`,`</${opt}>`);}catch(e){}
this.toolNodes.blocks.value='nonebis';},},wiki:{list:['nonebis','h3','h4','h5'],fn(opt){switch(opt){case'nonebis':this.textarea.focus();break;case'h3':this.encloseSelection('!!!');break;case'h4':this.encloseSelection('!!');break;case'h5':this.encloseSelection('!');break;}
this.toolNodes.blocks.value='nonebis';},},};jsToolBar.prototype.elements.space0={type:'space',format:{wysiwyg:true,wiki:true,xhtml:true,},};jsToolBar.prototype.elements.strong={type:'button',title:'Strong emphasis',fn:{wiki(){this.singleTag('__');},xhtml(){this.singleTag('<strong>','</strong>');},},};jsToolBar.prototype.elements.em={type:'button',title:'Emphasis',fn:{wiki(){this.singleTag("''");},xhtml(){this.singleTag('<em>','</em>');},},};jsToolBar.prototype.elements.ins={type:'button',title:'Inserted',fn:{wiki(){this.singleTag('++');},xhtml(){this.singleTag('<ins>','</ins>');},},};jsToolBar.prototype.elements.del={type:'button',title:'Deleted',fn:{wiki(){this.singleTag('--');},xhtml(){this.singleTag('<del>','</del>');},},};jsToolBar.prototype.elements.quote={type:'button',title:'Inline quote',fn:{wiki(){this.singleTag('{{','}}');},xhtml(){this.singleTag('<q>','</q>');},},};jsToolBar.prototype.elements.code={type:'button',title:'Code',fn:{wiki(){this.singleTag('@@');},xhtml(){this.singleTag('<code>','</code>');},},};jsToolBar.prototype.elements.mark={type:'button',title:'Mark',fn:{wiki(){this.singleTag('""');},xhtml(){this.singleTag('<mark>','</mark>');},},};jsToolBar.prototype.elements.space1={type:'space',format:{wysiwyg:true,wiki:true,xhtml:true,},};jsToolBar.prototype.elements.br={type:'button',title:'Line break',fn:{wiki(){this.encloseSelection('%%%\n','');},xhtml(){this.encloseSelection('<br />\n','');},},};jsToolBar.prototype.elements.space2={type:'space',format:{wysiwyg:true,wiki:true,xhtml:true,},};jsToolBar.prototype.elements.blockquote={type:'button',title:'Blockquote',fn:{xhtml(){this.singleTag('<blockquote>','</blockquote>');},wiki(){this.encloseSelection('\n','',(str)=>`> ${str.replace(/\r/g, '').replace(/\n/g, '\n> ')}`);},},};jsToolBar.prototype.elements.pre={type:'button',title:'Preformated text',fn:{wiki(){this.singleTag('///\n','\n///');},xhtml(){this.singleTag('<pre>','</pre>');},},};jsToolBar.prototype.elements.ul={type:'button',title:'Unordered list',fn:{wiki(){this.encloseSelection('','',(str)=>`* ${str.replace(/\r/g, '').replace(/\n/g, '\n* ')}`);},xhtml(){this.encloseSelection('','',(str)=>`<ul>\n <li>${str.replace(/\r/g, '').replace(/\n/g, '</li>\n <li>')}</li>\n</ul>`);},},};jsToolBar.prototype.elements.ol={type:'button',title:'Ordered list',fn:{wiki(){this.encloseSelection('','',(str)=>`# ${str.replace(/\r/g, '').replace(/\n/g, '\n# ')}`);},xhtml(){this.encloseSelection('','',(str)=>`<ol>\n <li>${str.replace(/\r/g, '').replace(/\n/g, '</li>\n <li>')}</li>\n</ol>`);},},};jsToolBar.prototype.elements.space3={type:'space',format:{wysiwyg:true,wiki:true,xhtml:true,},};jsToolBar.prototype.elements.link={type:'button',title:'Link',fn:{},accesskey:'l',href_prompt:'Please give page URL:',hreflang_prompt:'Language of this page:',default_hreflang:'',prompt(href='',hreflang=''){hreflang=hreflang||this.elements.link.default_hreflang;href=window.prompt(this.elements.link.href_prompt,href);if(!href){return false;}
hreflang=window.prompt(this.elements.link.hreflang_prompt,hreflang);return{href:this.stripBaseURL(href),hreflang,};},};jsToolBar.prototype.elements.link.fn.xhtml=function(){const link=this.elements.link.prompt.call(this);if(link){let stag=`<a href="${link.href}"`;if(link.hreflang){stag=`${stag} hreflang="${link.hreflang}"`;}
stag=`${stag}>`;const etag='</a>';this.encloseSelection(stag,etag);}};jsToolBar.prototype.elements.link.fn.wiki=function(){const link=this.elements.link.prompt.call(this);if(link){const stag='[';let etag=`|${link.href}`;if(link.hreflang){etag=`${etag}|${link.hreflang}`;}
etag=`${etag}]`;this.encloseSelection(stag,etag);}};jsToolBar.prototype.elements.img={type:'button',title:'External image',src_prompt:'Please give image URL:',fn:{},prompt(src=''){return this.stripBaseURL(window.prompt(this.elements.img.src_prompt,src));},};jsToolBar.prototype.elements.img.fn.xhtml=function(){const src=this.elements.img.prompt.call(this);if(src){this.encloseSelection('','',(str)=>(str?`<img src="${src}" alt="${str}" />`:`<img src="${src}" alt="" />`));}};jsToolBar.prototype.elements.img.fn.wiki=function(){const src=this.elements.img.prompt.call(this);if(src){this.encloseSelection('','',(str)=>(str?`((${src}|${str}))`:`((${src}))`));}};