mirror of
https://github.com/koalyptus/TableFilter.git
synced 2024-06-29 10:50:51 +02:00
147 lines
3.8 KiB
JavaScript
147 lines
3.8 KiB
JavaScript
import Cookie from '../cookie';
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import Types from '../types';
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export class Store{
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/**
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* Store, persistence manager
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* @param {Object} tf TableFilter instance
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*
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* TODO: use localStorage and fallback to cookie persistence
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*/
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constructor(tf){
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let f = tf.config();
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//cookie storing filter values
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this.fltsValuesCookie = tf.prfxCookieFltsValues + tf.id;
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//cookie storing page nb
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this.pgNbCookie = tf.prfxCookiePageNb + tf.id;
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//cookie storing page length
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this.pgLenCookie = tf.prfxCookiePageLen + tf.id;
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this.duration = !isNaN(f.set_cookie_duration) ?
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parseInt(f.set_cookie_duration, 10) : 100000;
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this.tf = tf;
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this.emitter = tf.emitter;
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}
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init(){
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this.emitter.on(['after-filtering'], ()=> this.saveFilterValues());
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this.emitter.on(['after-clearing-filters'], ()=> this.clearCookies());
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this.emitter.on(['after-page-change'],
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(tf, index)=> this.savePageNb(index));
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this.emitter.on(['after-page-length-change'],
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(tf, index)=> this.savePageLength(index));
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}
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/**
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* Store filters' values in cookie
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*/
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saveFilterValues(){
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let tf = this.tf;
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let fltValues = [];
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if(!tf.rememberGridValues){
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return;
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}
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//store filters' values
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for(let i=0; i<tf.fltIds.length; i++){
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let value = tf.getFilterValue(i);
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//convert array to a || separated values
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if(Types.isArray(value)){
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let rgx = new RegExp(tf.separator, 'g');
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value = value.toString()
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.replace(rgx, ' ' + tf.orOperator + ' ');
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}
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if (value === ''){
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value = ' ';
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}
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fltValues.push(value);
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}
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//write cookie
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Cookie.write(
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this.fltsValuesCookie,
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fltValues.join(tf.separator),
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this.duration
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);
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}
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/**
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* Retrieve filters' values from cookie
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* @return {Array}
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*/
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getFilterValues(){
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let flts = Cookie.read(this.fltsValuesCookie);
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let rgx = new RegExp(this.tf.separator, 'g');
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// filters' values array
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return flts.split(rgx);
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}
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/**
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* Store page number in cookie
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* @param {Number} pageIndex page index to persist
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*/
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savePageNb(pageIndex){
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if(!this.tf.rememberPageNb){
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return;
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}
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Cookie.write(
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this.pgNbCookie,
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pageIndex,
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this.duration
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);
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}
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/**
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* Retrieve page number from cookie
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* @return {String}
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*/
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getPageNb(){
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return Cookie.read(this.pgNbCookie);
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}
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/**
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* Store page length in cookie
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* @param {Number} index page length index to persist
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*/
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savePageLength(index){
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if(!this.tf.rememberPageLen){
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return;
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}
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Cookie.write(
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this.pgLenCookie,
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index,
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this.duration
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);
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}
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/**
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* Retrieve page length from cookie
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* @return {String}
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*/
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getPageLength(){
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return Cookie.read(this.pgLenCookie);
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}
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/**
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* Remove all cookies
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*/
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clearCookies(){
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Cookie.remove(this.fltsValuesCookie);
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Cookie.remove(this.pgLenCookie);
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Cookie.remove(this.pgNbCookie);
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}
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destroy(){
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this.emitter.off(['after-filtering'], ()=> this.saveFilterValues());
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this.emitter.off(['after-clearing-filters'], ()=> this.clearCookies());
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this.emitter.off(['after-page-change'],
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(tf, index)=> this.savePageNb(index));
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this.emitter.off(['after-page-length-change'],
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(tf, index)=> this.savePageLength(index));
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}
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}
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