Blame view
static/plugins/webshim-gh-pages/js-webshim/dev/shims/url.js
8.72 KB
831eac332
add file
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 |
webshim.register('url', function($, webshims, window, document, undefined, options){
'use strict';
// URL Polyfill
// Draft specification: http://url.spec.whatwg.org
// Notes:
// - Primarily useful for parsing URLs and modifying query parameters
// - Should work in IE8+ and everything more modern
(function (global) {
// Browsers may have:
// * No global URL object
// * URL with static methods only - may have a dummy constructor
// * URL with members except searchParams
// * Full URL API support
var origURL = global.URL;
var nativeURL;
try {
if (origURL) {
nativeURL = new global.URL('http://example.com');
if ('searchParams' in nativeURL)
return;
if (!('href' in nativeURL))
nativeURL = undefined;
}
} catch (_) {}
function URLUtils(url) {
if (nativeURL)
return new origURL(url);
var anchor = document.createElement('a');
anchor.href = url;
return anchor;
}
global.URL = function URL(url, base) {
if (!(this instanceof global.URL))
throw new TypeError("Failed to construct 'URL': Please use the 'new' operator.");
if (base) {
url = (function () {
if (nativeURL) return new origURL(url, base).href;
var doc;
// Use another document/base tag/anchor for relative URL resolution, if possible
if (document.implementation && document.implementation.createHTMLDocument) {
doc = document.implementation.createHTMLDocument('');
} else if (document.implementation && document.implementation.createDocument) {
doc = document.implementation.createElement('http://www.w3.org/1999/xhtml', 'html', null);
doc.documentElement.appendChild(doc.createElement('head'));
doc.documentElement.appendChild(doc.createElement('body'));
} else if (window.ActiveXObject) {
doc = new window.ActiveXObject('htmlfile');
doc.write('<head></head><body></body>');
doc.close();
}
if (!doc) throw Error('base not supported');
var baseTag = doc.createElement('base');
baseTag.href = base;
doc.getElementsByTagName('head')[0].appendChild(baseTag);
var anchor = doc.createElement('a');
anchor.href = url;
return anchor.href;
}());
}
// An inner object implementing URLUtils (either a native URL
// object or an HTMLAnchorElement instance) is used to perform the
// URL algorithms. With full ES5 getter/setter support, return a
// regular object For IE8's limited getter/setter support, a
// different HTMLAnchorElement is returned with properties
// overridden
var instance = URLUtils(url || '');
// Detect for ES5 getter/setter support
var ES5_GET_SET = (Object.defineProperties && (function () {
var o = {}; Object.defineProperties(o, { p: { 'get': function () { return true; } } }); return o.p;
}()));
var self = ES5_GET_SET ? this : document.createElement('a');
// NOTE: Doesn't do the encoding/decoding dance
function parse(input, isindex) {
var sequences = input.split('&');
if (isindex && sequences[0].indexOf('=') === -1)
sequences[0] = '=' + sequences[0];
var pairs = [];
sequences.forEach(function (bytes) {
if (bytes.length === 0) return;
var index = bytes.indexOf('=');
if (index !== -1) {
var name = bytes.substring(0, index);
var value = bytes.substring(index + 1);
} else {
name = bytes;
value = '';
}
name = name.replace(/\+/g, ' ');
value = value.replace(/\+/g, ' ');
pairs.push({ name: name, value: value });
});
var output = [];
pairs.forEach(function (pair) {
output.push({
name: decodeURIComponent(pair.name),
value: decodeURIComponent(pair.value)
});
});
return output;
}
function URLSearchParams(url_object, init) {
var pairs = [];
if (init)
pairs = parse(init);
this._setPairs = function (list) { pairs = list; };
this._updateSteps = function () { updateSteps(); };
var updating = false;
function updateSteps() {
if (updating) return;
updating = true;
// TODO: For all associated url objects
url_object.search = serialize(pairs);
updating = false;
}
// NOTE: Doesn't do the encoding/decoding dance
function serialize(pairs) {
var output = '', first = true;
pairs.forEach(function (pair) {
var name = encodeURIComponent(pair.name);
var value = encodeURIComponent(pair.value);
if (!first) output += '&';
output += name + '=' + value;
first = false;
});
return output.replace(/%20/g, '+');
}
Object.defineProperties(this, {
append: {
value: function (name, value) {
pairs.push({ name: name, value: value });
updateSteps();
}
},
'delete': {
value: function (name) {
for (var i = 0; i < pairs.length;) {
if (pairs[i].name === name)
pairs.splice(i, 1);
else
++i;
}
updateSteps();
}
},
get: {
value: function (name) {
for (var i = 0; i < pairs.length; ++i) {
if (pairs[i].name === name)
return pairs[i].value;
}
return null;
}
},
getAll: {
value: function (name) {
var result = [];
for (var i = 0; i < pairs.length; ++i) {
if (pairs[i].name === name)
result.push(pairs[i].value);
}
return result;
}
},
has: {
value: function (name) {
for (var i = 0; i < pairs.length; ++i) {
if (pairs[i].name === name)
return true;
}
return false;
}
},
set: {
value: function (name, value) {
var found = false;
for (var i = 0; i < pairs.length;) {
if (pairs[i].name === name) {
if (!found) {
pairs[i].value = value;
found = true;
++i;
} else {
pairs.splice(i, 1);
}
} else {
++i;
}
}
if (!found)
pairs.push({ name: name, value: value });
updateSteps();
}
},
toString: {
value: function () {
return serialize(pairs);
}
}
});
};
var queryObject = new URLSearchParams(
self, instance.search ? instance.search.substring(1) : null);
Object.defineProperties(self, {
href: {
get: function () { return instance.href; },
set: function (v) { instance.href = v; tidy_instance(); update_steps(); }
},
origin: {
get: function () {
if ('origin' in instance) return instance.origin;
return this.protocol + '//' + this.host;
}
},
protocol: {
get: function () { return instance.protocol; },
set: function (v) { instance.protocol = v; }
},
username: {
get: function () { return instance.username; },
set: function (v) { instance.username = v; }
},
password: {
get: function () { return instance.password; },
set: function (v) { instance.password = v; }
},
host: {
get: function () {
// IE returns default port in |host|
var re = {'http:': /:80$/, 'https:': /:443$/, 'ftp:': /:21$/}[instance.protocol];
return re ? instance.host.replace(re, '') : instance.host;
},
set: function (v) { instance.host = v; }
},
hostname: {
get: function () { return instance.hostname; },
set: function (v) { instance.hostname = v; }
},
port: {
get: function () { return instance.port; },
set: function (v) { instance.port = v; }
},
pathname: {
get: function () {
// IE does not include leading '/' in |pathname|
if (instance.pathname.charAt(0) !== '/') return '/' + instance.pathname;
return instance.pathname;
},
set: function (v) { instance.pathname = v; }
},
search: {
get: function () { return instance.search; },
set: function (v) {
if (instance.search === v) return;
instance.search = v; tidy_instance(); update_steps();
}
},
searchParams: {
get: function () { return queryObject; }
// TODO: implement setter
},
hash: {
get: function () { return instance.hash; },
set: function (v) { instance.hash = v; tidy_instance(); }
},
toString: {
value: function() { return instance.toString(); }
},
valueOf: {
value: function() { return instance.valueOf(); }
}
});
function tidy_instance() {
var href = instance.href.replace(/#$|\?$|\?(?=#)/g, '');
if (instance.href !== href)
instance.href = href;
}
function update_steps() {
queryObject._setPairs(instance.search ? parse(instance.search.substring(1)) : []);
queryObject._updateSteps();
};
return self;
};
if (origURL) {
for (var i in origURL) {
if (origURL.hasOwnProperty(i))
global.URL[i] = origURL[i];
}
}
}(window));
});
|