132 lines
4.0 KiB
TypeScript
132 lines
4.0 KiB
TypeScript
import {isPresent} from '../src/facade/lang';
|
|
import {Map, ListWrapper, isListLikeIterable} from '../src/facade/collection';
|
|
|
|
function paramParser(rawParams: string = ''): Map<string, string[]> {
|
|
var map = new Map<string, string[]>();
|
|
if (rawParams.length > 0) {
|
|
var params: string[] = rawParams.split('&');
|
|
params.forEach((param: string) => {
|
|
var split: string[] = param.split('=');
|
|
var key = split[0];
|
|
var val = split[1];
|
|
var list = isPresent(map.get(key)) ? map.get(key) : [];
|
|
list.push(val);
|
|
map.set(key, list);
|
|
});
|
|
}
|
|
return map;
|
|
}
|
|
|
|
/**
|
|
* Map-like representation of url search parameters, based on
|
|
* [URLSearchParams](https://url.spec.whatwg.org/#urlsearchparams) in the url living standard,
|
|
* with several extensions for merging URLSearchParams objects:
|
|
* - setAll()
|
|
* - appendAll()
|
|
* - replaceAll()
|
|
*/
|
|
export class URLSearchParams {
|
|
paramsMap: Map<string, string[]>;
|
|
constructor(public rawParams: string = '') { this.paramsMap = paramParser(rawParams); }
|
|
|
|
clone(): URLSearchParams {
|
|
var clone = new URLSearchParams();
|
|
clone.appendAll(this);
|
|
return clone;
|
|
}
|
|
|
|
has(param: string): boolean { return this.paramsMap.has(param); }
|
|
|
|
get(param: string): string {
|
|
var storedParam = this.paramsMap.get(param);
|
|
if (isListLikeIterable(storedParam)) {
|
|
return ListWrapper.first(storedParam);
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
getAll(param: string): string[] {
|
|
var mapParam = this.paramsMap.get(param);
|
|
return isPresent(mapParam) ? mapParam : [];
|
|
}
|
|
|
|
set(param: string, val: string) {
|
|
var mapParam = this.paramsMap.get(param);
|
|
var list = isPresent(mapParam) ? mapParam : [];
|
|
ListWrapper.clear(list);
|
|
list.push(val);
|
|
this.paramsMap.set(param, list);
|
|
}
|
|
|
|
// A merge operation
|
|
// For each name-values pair in `searchParams`, perform `set(name, values[0])`
|
|
//
|
|
// E.g: "a=[1,2,3], c=[8]" + "a=[4,5,6], b=[7]" = "a=[4], c=[8], b=[7]"
|
|
//
|
|
// TODO(@caitp): document this better
|
|
setAll(searchParams: URLSearchParams) {
|
|
searchParams.paramsMap.forEach((value, param) => {
|
|
var mapParam = this.paramsMap.get(param);
|
|
var list = isPresent(mapParam) ? mapParam : [];
|
|
ListWrapper.clear(list);
|
|
list.push(value[0]);
|
|
this.paramsMap.set(param, list);
|
|
});
|
|
}
|
|
|
|
append(param: string, val: string): void {
|
|
var mapParam = this.paramsMap.get(param);
|
|
var list = isPresent(mapParam) ? mapParam : [];
|
|
list.push(val);
|
|
this.paramsMap.set(param, list);
|
|
}
|
|
|
|
// A merge operation
|
|
// For each name-values pair in `searchParams`, perform `append(name, value)`
|
|
// for each value in `values`.
|
|
//
|
|
// E.g: "a=[1,2], c=[8]" + "a=[3,4], b=[7]" = "a=[1,2,3,4], c=[8], b=[7]"
|
|
//
|
|
// TODO(@caitp): document this better
|
|
appendAll(searchParams: URLSearchParams) {
|
|
searchParams.paramsMap.forEach((value, param) => {
|
|
var mapParam = this.paramsMap.get(param);
|
|
var list = isPresent(mapParam) ? mapParam : [];
|
|
for (var i = 0; i < value.length; ++i) {
|
|
list.push(value[i]);
|
|
}
|
|
this.paramsMap.set(param, list);
|
|
});
|
|
}
|
|
|
|
|
|
// A merge operation
|
|
// For each name-values pair in `searchParams`, perform `delete(name)`,
|
|
// followed by `set(name, values)`
|
|
//
|
|
// E.g: "a=[1,2,3], c=[8]" + "a=[4,5,6], b=[7]" = "a=[4,5,6], c=[8], b=[7]"
|
|
//
|
|
// TODO(@caitp): document this better
|
|
replaceAll(searchParams: URLSearchParams) {
|
|
searchParams.paramsMap.forEach((value, param) => {
|
|
var mapParam = this.paramsMap.get(param);
|
|
var list = isPresent(mapParam) ? mapParam : [];
|
|
ListWrapper.clear(list);
|
|
for (var i = 0; i < value.length; ++i) {
|
|
list.push(value[i]);
|
|
}
|
|
this.paramsMap.set(param, list);
|
|
});
|
|
}
|
|
|
|
toString(): string {
|
|
var paramsList: string[] = [];
|
|
this.paramsMap.forEach(
|
|
(values, k) => { values.forEach(v => paramsList.push(k + '=' + encodeURIComponent(v))); });
|
|
return paramsList.join('&');
|
|
}
|
|
|
|
delete (param: string): void { this.paramsMap.delete(param); }
|
|
}
|