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| 1 /* | |
| 2 * Distributed under both the W3C Test Suite License [1] and the W3C | |
| 3 * 3-clause BSD License [2]. To contribute to a W3C Test Suite, see the | |
| 4 * policies and contribution forms [3]. | |
| 5 * | |
| 6 * [1] http://www.w3.org/Consortium/Legal/2008/04-testsuite-license | |
| 7 * [2] http://www.w3.org/Consortium/Legal/2008/03-bsd-license | |
| 8 * [3] http://www.w3.org/2004/10/27-testcases | |
| 9 * */ | |
| 10 | |
| 11 /* Source: https://github.com/w3c/web-platform-tests/blob/master/common/vendor-p
refix.js | |
| 12 * The file has been modified to always be on (i.e. does not require usePrefixes
=1 to | |
| 13 * start replacing prefixes). */ | |
| 14 | |
| 15 /* Use this script when you want to test APIs that use vendor prefixes | |
| 16 and define which objects need to be checked for prefixed versions, à la | |
| 17 <script src="vendor-prefix.js" | |
| 18 data-prefixed-objects='[{"ancestors":["navigator"], "name":"getUserMedia"}]
' | |
| 19 data-prefixed-prototypes='[{"ancestors":["HTMLMediaElement"],"name":"srcObjec
t"}]'></script> | |
| 20 data-prefixed-objects lets prefix objects in the global space | |
| 21 data-prefixed-prototypes adds prefixes to interfaces, for objects that | |
| 22 get created during the tests | |
| 23 | |
| 24 NB: vendor prefixes are expected to go away in favor of putting | |
| 25 new features behind flag, so hopefully there will be only limited | |
| 26 need to use this | |
| 27 */ | |
| 28 | |
| 29 (function () { | |
| 30 var aliases = {}; | |
| 31 var documentingPrefixUsage = document.createElement('div'); | |
| 32 var vendorPrefixes = ["moz", "ms", "o", "webkit", "Moz", "MS", "O", "WebKit"
, "op"]; | |
| 33 | |
| 34 function getParentObject(ancestors) { | |
| 35 var parent = window; | |
| 36 var currentName = ""; | |
| 37 ancestors.forEach(function (p) { | |
| 38 currentName = currentName ? currentName + "." + p : p; | |
| 39 if (parent[p] === undefined) { | |
| 40 throw currentName + " is undefined, cannot set prefix alias on c
hild object"; | |
| 41 } | |
| 42 parent = parent[p]; | |
| 43 }); | |
| 44 return parent; | |
| 45 } | |
| 46 | |
| 47 function prependPrefix(prefix, name) { | |
| 48 var newName = name[0].toUpperCase() + name.substr(1, name.length); | |
| 49 return prefix + newName; | |
| 50 } | |
| 51 | |
| 52 function setPrototypeAlias(obj) { | |
| 53 var parent = getParentObject(obj.ancestors); | |
| 54 if (!parent.prototype.hasOwnProperty(obj.name)) { | |
| 55 vendorPrefixes.forEach(function (prefix) { | |
| 56 if (parent.prototype.hasOwnProperty(prependPrefix(prefix, obj.na
me))) { | |
| 57 Object.defineProperty(parent.prototype, obj.name, | |
| 58 {get: function() {return this[prependP
refix(prefix, obj.name)];}, | |
| 59 set: function(v) {this[prependPrefix(
prefix, obj.name)] = v;} | |
| 60 }); | |
| 61 aliases[obj.ancestors.join(".") + ".prototype." + obj.name]
= obj.ancestors.join(".") + ".prototype." + prependPrefix(prefix, obj.name); | |
| 62 return; | |
| 63 } | |
| 64 }); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 function setAlias(obj) { | |
| 69 var parent = getParentObject(obj.ancestors); | |
| 70 if (parent[obj.name] === undefined) { | |
| 71 vendorPrefixes.forEach(function (prefix) { | |
| 72 if (parent[prependPrefix(prefix, obj.name)] !== undefined) { | |
| 73 parent[obj.name] = parent[prependPrefix(prefix, obj.name)]; | |
| 74 aliases[obj.ancestors.join(".") + "." + obj.name] = obj.ance
stors.join(".") + "." + prependPrefix(prefix, obj.name); | |
| 75 return; | |
| 76 } | |
| 77 }); | |
| 78 } | |
| 79 } | |
| 80 | |
| 81 // For this version of vendor-prefixes.js, always replace the prefixes. | |
| 82 if (document.querySelector("script[data-prefixed-objects]")) { | |
| 83 var prefixObjectsData = document.querySelector("script[data-prefixed-obj
ects]").dataset["prefixedObjects"]; | |
| 84 try { | |
| 85 var prefixedObjects = JSON.parse(prefixObjectsData); | |
| 86 } catch (e) { | |
| 87 throw "couldn't parse data-prefixed-objects as JSON:" + e; | |
| 88 } | |
| 89 prefixedObjects.forEach(setAlias); | |
| 90 } | |
| 91 if (document.querySelector("script[data-prefixed-prototypes]")) { | |
| 92 var prefixProtoData = document.querySelector("script[data-prefixed-proto
types]").dataset["prefixedPrototypes"]; | |
| 93 try { | |
| 94 var prefixedPrototypes = JSON.parse(prefixProtoData); | |
| 95 } catch (e) { | |
| 96 throw "couldn't parse data-prefixed-prototypes as JSON:" + e; | |
| 97 } | |
| 98 prefixedPrototypes.forEach(setPrototypeAlias); | |
| 99 } | |
| 100 })(); | |
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