mirror of
https://github.com/koalyptus/TableFilter.git
synced 2024-06-10 09:52:33 +02:00
150 lines
5 KiB
JavaScript
150 lines
5 KiB
JavaScript
import Dom from '../dom';
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import Event from '../event';
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const WIKI_URL = 'https://github.com/koalyptus/TableFilter/wiki/' +
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'4.-Filter-operators';
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const WEBSITE_URL = 'http://koalyptus.github.io/TableFilter/';
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export class Help{
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/**
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* Help UI component
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* @param {Object} tf TableFilter instance
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*/
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constructor(tf){
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// Configuration object
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var f = tf.config();
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//id of custom container element for instructions
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this.tgtId = f.help_instructions_target_id || null;
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//id of custom container element for instructions
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this.contTgtId = f.help_instructions_container_target_id ||
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null;
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//defines help text
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this.instrText = f.help_instructions_text ?
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f.help_instructions_text :
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'Use the filters above each column to filter and limit table ' +
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'data. Advanced searches can be performed by using the following ' +
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'operators: <br /><b><</b>, <b><=</b>, <b>></b>, ' +
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'<b>>=</b>, <b>=</b>, <b>*</b>, <b>!</b>, <b>{</b>, <b>}</b>, ' +
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'<b>||</b>,<b>&&</b>, <b>[empty]</b>, <b>[nonempty]</b>, ' +
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'<b>rgx:</b><br/><a href="'+ WIKI_URL +'" target="_blank">' +
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'Learn more</a><hr/>';
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//defines help innerHtml
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this.instrHtml = f.help_instructions_html || null;
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//defines reset button text
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this.btnText = f.help_instructions_btn_text || '?';
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//defines reset button innerHtml
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this.btnHtml = f.help_instructions_btn_html || null;
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//defines css class for help button
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this.btnCssClass = f.help_instructions_btn_css_class || 'helpBtn';
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//defines css class for help container
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this.contCssClass = f.help_instructions_container_css_class ||
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'helpCont';
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//help button element
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this.btn = null;
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//help content div
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this.cont = null;
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this.defaultHtml = '<div class="helpFooter"><h4>TableFilter ' +
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'v'+ tf.version +'</h4>' +
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'<a href="'+ WEBSITE_URL +'" target="_blank">'+ WEBSITE_URL +'</a>'+
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'<br/><span>©2015-'+ tf.year +' {AUTHOR}</span>' +
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'<div align="center" style="margin-top:8px;">' +
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'<a href="javascript:void(0);" class="close">Close</a></div></div>';
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//id prefix for help elements
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this.prfxHelpSpan = 'helpSpan_';
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//id prefix for help elements
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this.prfxHelpDiv = 'helpDiv_';
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this.tf = tf;
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}
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init(){
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if(this.btn){
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return;
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}
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var tf = this.tf;
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var helpspan = Dom.create('span',['id', this.prfxHelpSpan+tf.id]);
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var helpdiv = Dom.create('div',['id', this.prfxHelpDiv+tf.id]);
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//help button is added to defined element
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if(!this.tgtId){
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tf.setToolbar();
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}
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var targetEl = !this.tgtId ? tf.rDiv : Dom.id(this.tgtId);
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targetEl.appendChild(helpspan);
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var divContainer = !this.contTgtId ? helpspan : Dom.id(this.contTgtId);
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if(!this.btnHtml){
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divContainer.appendChild(helpdiv);
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var helplink = Dom.create('a', ['href', 'javascript:void(0);']);
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helplink.className = this.btnCssClass;
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helplink.appendChild(Dom.text(this.btnText));
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helpspan.appendChild(helplink);
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Event.add(helplink, 'click', () => { this.toggle(); });
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} else {
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helpspan.innerHTML = this.btnHtml;
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var helpEl = helpspan.firstChild;
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Event.add(helpEl, 'click', () => { this.toggle(); });
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divContainer.appendChild(helpdiv);
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}
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if(!this.instrHtml){
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helpdiv.innerHTML = this.instrText;
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helpdiv.className = this.contCssClass;
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Event.add(helpdiv, 'dblclick', () => { this.toggle(); });
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} else {
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if(this.contTgtId){
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divContainer.appendChild(helpdiv);
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}
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helpdiv.innerHTML = this.instrHtml;
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if(!this.contTgtId){
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helpdiv.className = this.contCssClass;
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Event.add(helpdiv, 'dblclick', () => { this.toggle(); });
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}
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}
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helpdiv.innerHTML += this.defaultHtml;
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Event.add(helpdiv, 'click', () => { this.toggle(); });
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this.cont = helpdiv;
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this.btn = helpspan;
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}
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/**
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* Toggle help pop-up
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*/
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toggle(){
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if(!this.cont){
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return;
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}
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var divDisplay = this.cont.style.display;
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if(divDisplay === '' || divDisplay === 'none'){
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this.cont.style.display = 'inline';
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} else {
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this.cont.style.display = 'none';
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}
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}
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/**
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* Remove help UI
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*/
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destroy(){
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if(!this.btn){
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return;
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}
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this.btn.parentNode.removeChild(this.btn);
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this.btn = null;
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if(!this.cont){
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return;
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}
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this.cont.parentNode.removeChild(this.cont);
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this.cont = null;
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}
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}
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