72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
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/**
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* @prototype QueryParams
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* This prototype contains methods to manipulate the query parameters of the
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* web pages url
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*/
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function QueryParams () {}
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/**
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* get an object value with all parameters in the query params
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* @return {Object} query object containing key/values
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*/
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QueryParams.prototype.getQuery = function () {
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var search = window.location.search.substring(1); // skip the ? character
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var params = search.split('&');
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var query = {};
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for (var i = 0, iMax = params.length; i < iMax; i++) {
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var keyvalue = params[i].split('=');
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if (keyvalue.length == 2) {
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var key = decodeURIComponent(keyvalue[0]);
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var value = decodeURIComponent(keyvalue[1]);
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query[key] = value;
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}
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}
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return query;
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};
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/**
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* Set query parameters parameters
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* @param {Object} query object with strings
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*/
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QueryParams.prototype.setQuery = function (query) {
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var search = '';
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for (var key in query) {
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if (query.hasOwnProperty(key)) {
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var value = query[key];
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if (value != undefined) {
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if (search.length) {
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search += '&';
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}
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search += encodeURIComponent(key);
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search += '=';
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search += encodeURIComponent(query[key]);
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}
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}
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}
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window.location.search = (search.length ? ('#' + search) : '');
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};
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/**
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* Retrieve a parameter value from the query params
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* @param {String} key
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* @return {String} value undefined when the value is not found
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*/
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QueryParams.prototype.getValue = function (key) {
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var query = this.getQuery();
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return query[key];
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};
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/**
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* Set an query parameter
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* @param {String} key
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* @param {String} value
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*/
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QueryParams.prototype.setValue = function (key, value) {
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var query = this.getQuery();
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query[key] = value;
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this.setQuery(query);
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};
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