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Max Guglielmi 2016-03-23 19:02:48 +11:00
commit cda05accb5
10 changed files with 10173 additions and 94 deletions
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96
src/modules/highlightKeywords.js
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@ -2,30 +2,29 @@ import Dom from '../dom';
import Str from '../string';
import Types from '../types';
export class HighlightKeyword{
export class HighlightKeyword {
/**
* HighlightKeyword, highlight matched keyword
* @param {Object} tf TableFilter instance
*/
constructor(tf) {
var f = tf.config();
let f = tf.config();
//defines css class for highlighting
this.highlightCssClass = f.highlight_css_class || 'keyword';
this.highlightedNodes = [];
this.tf = tf;
this.emitter = tf.emitter;
}
init(){
init() {
this.emitter.on(
['before-filtering', 'destroy'],
()=> this.unhighlightAll()
() => this.unhighlightAll()
);
this.emitter.on(
['highlight-keyword'],
(tf, cell, word)=>
(tf, cell, word) =>
this.highlight(cell, word, this.highlightCssClass)
);
}
@ -36,37 +35,36 @@ export class HighlightKeyword{
* @param {String} word Searched term
* @param {String} cssClass Css class name
*/
highlight(node, word, cssClass){
highlight(node, word, cssClass) {
// Iterate into this nodes childNodes
if(node.hasChildNodes){
var children = node.childNodes;
for(var i=0; i<children.length; i++){
if (node.hasChildNodes) {
let children = node.childNodes;
for (let i = 0; i < children.length; i++) {
this.highlight(children[i], word, cssClass);
}
}
if(node.nodeType === 3){
var tempNodeVal = Str.lower(node.nodeValue);
var tempWordVal = Str.lower(word);
if(tempNodeVal.indexOf(tempWordVal) != -1){
var pn = node.parentNode;
if(pn && pn.className != cssClass){
if (node.nodeType === 3) {
let tempNodeVal = Str.lower(node.nodeValue);
let tempWordVal = Str.lower(word);
if (tempNodeVal.indexOf(tempWordVal) !== -1) {
let pn = node.parentNode;
if (pn && pn.className !== cssClass) {
// word not highlighted yet
var nv = node.nodeValue,
let nv = node.nodeValue,
ni = tempNodeVal.indexOf(tempWordVal),
// Create a load of replacement nodes
before = Dom.text(nv.substr(0, ni)),
docWordVal = nv.substr(ni,word.length),
after = Dom.text(nv.substr(ni+word.length)),
docWordVal = nv.substr(ni, word.length),
after = Dom.text(nv.substr(ni + word.length)),
hiwordtext = Dom.text(docWordVal),
hiword = Dom.create('span');
hiword.className = cssClass;
hiword.appendChild(hiwordtext);
pn.insertBefore(before,node);
pn.insertBefore(hiword,node);
pn.insertBefore(after,node);
pn.insertBefore(before, node);
pn.insertBefore(hiword, node);
pn.insertBefore(after, node);
pn.removeChild(node);
this.highlightedNodes.push(hiword.firstChild);
}
}
}
@ -77,63 +75,47 @@ export class HighlightKeyword{
* @param {String} word
* @param {String} cssClass Css class to remove
*/
unhighlight(word, cssClass){
var arrRemove = [];
var highlightedNodes = this.highlightedNodes;
for(var i=0; i<highlightedNodes.length; i++){
var n = highlightedNodes[i];
if(!n){
continue;
}
var tempNodeVal = Str.lower(n.nodeValue),
unhighlight(word, cssClass) {
let highlightedNodes = this.tf.tbl.querySelectorAll(`.${cssClass}`);
for (let i = 0; i < highlightedNodes.length; i++) {
let n = highlightedNodes[i];
let nodeVal = Dom.getText(n),
tempNodeVal = Str.lower(nodeVal),
tempWordVal = Str.lower(word);
if(tempNodeVal.indexOf(tempWordVal) !== -1){
var pn = n.parentNode;
if(pn && pn.className === cssClass){
var prevSib = pn.previousSibling,
nextSib = pn.nextSibling;
if(!prevSib || !nextSib){ continue; }
nextSib.nodeValue = prevSib.nodeValue + n.nodeValue +
nextSib.nodeValue;
prevSib.nodeValue = '';
n.nodeValue = '';
arrRemove.push(i);
}
if (tempNodeVal.indexOf(tempWordVal) !== -1) {
n.parentNode.replaceChild(Dom.text(nodeVal), n);
}
}
for(var k=0; k<arrRemove.length; k++){
highlightedNodes.splice(arrRemove[k], 1);
}
}
/**
* Clear all occurrences of highlighted nodes
*/
unhighlightAll(){
if(!this.tf.highlightKeywords){
unhighlightAll() {
if (!this.tf.highlightKeywords) {
return;
}
// iterate filters values to unhighlight all values
this.tf.getFiltersValue().forEach((val)=> {
if(Types.isArray(val)){
val.forEach((item)=>
this.tf.getFiltersValue().forEach((val) => {
if (Types.isArray(val)) {
val.forEach((item) =>
this.unhighlight(item, this.highlightCssClass));
} else {
this.unhighlight(val, this.highlightCssClass);
}
});
this.highlightedNodes = [];
}
destroy(){
destroy() {
this.emitter.off(
['before-filtering', 'destroy'],
()=> this.unhighlightAll()
() => this.unhighlightAll()
);
this.emitter.off(
['highlight-keyword'],
(tf, cell, word)=>
(tf, cell, word) =>
this.highlight(cell, word, this.highlightCssClass)
);
}
}
}