The Tor Browser / file comparison
comparison: dom/promise/PromiseCallback.h
dom/promise/PromiseCallback.h
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- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:9aac907b58b4 |
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| 1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_PromiseCallback_h | |
| 8 #define mozilla_dom_PromiseCallback_h | |
| 9 | |
| 10 #include "mozilla/dom/Promise.h" | |
| 11 #include "nsCycleCollectionParticipant.h" | |
| 12 | |
| 13 namespace mozilla { | |
| 14 namespace dom { | |
| 15 | |
| 16 // This is the base class for any PromiseCallback. | |
| 17 // It's a logical step in the promise chain of callbacks. | |
| 18 class PromiseCallback : public nsISupports | |
| 19 { | |
| 20 public: | |
| 21 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 22 NS_DECL_CYCLE_COLLECTION_CLASS(PromiseCallback) | |
| 23 | |
| 24 PromiseCallback(); | |
| 25 virtual ~PromiseCallback(); | |
| 26 | |
| 27 virtual void Call(JS::Handle<JS::Value> aValue) = 0; | |
| 28 | |
| 29 enum Task { | |
| 30 Resolve, | |
| 31 Reject | |
| 32 }; | |
| 33 | |
| 34 // This factory returns a PromiseCallback object with refcount of 0. | |
| 35 static PromiseCallback* | |
| 36 Factory(Promise* aNextPromise, JS::Handle<JSObject*> aObject, | |
| 37 AnyCallback* aCallback, Task aTask); | |
| 38 }; | |
| 39 | |
| 40 // WrapperPromiseCallback execs a JS Callback with a value, and then the return | |
| 41 // value is sent to the aNextPromise->ResolveFunction() or to | |
| 42 // aNextPromise->RejectFunction() if the JS Callback throws. | |
| 43 class WrapperPromiseCallback MOZ_FINAL : public PromiseCallback | |
| 44 { | |
| 45 public: | |
| 46 NS_DECL_ISUPPORTS_INHERITED | |
| 47 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(WrapperPromiseCallback, | |
| 48 PromiseCallback) | |
| 49 | |
| 50 void Call(JS::Handle<JS::Value> aValue) MOZ_OVERRIDE; | |
| 51 | |
| 52 WrapperPromiseCallback(Promise* aNextPromise, JS::Handle<JSObject*> aGlobal, | |
| 53 AnyCallback* aCallback); | |
| 54 ~WrapperPromiseCallback(); | |
| 55 | |
| 56 private: | |
| 57 nsRefPtr<Promise> mNextPromise; | |
| 58 JS::Heap<JSObject*> mGlobal; | |
| 59 nsRefPtr<AnyCallback> mCallback; | |
| 60 }; | |
| 61 | |
| 62 // ResolvePromiseCallback calls aPromise->ResolveFunction() with the value | |
| 63 // received by Call(). | |
| 64 class ResolvePromiseCallback MOZ_FINAL : public PromiseCallback | |
| 65 { | |
| 66 public: | |
| 67 NS_DECL_ISUPPORTS_INHERITED | |
| 68 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(ResolvePromiseCallback, | |
| 69 PromiseCallback) | |
| 70 | |
| 71 void Call(JS::Handle<JS::Value> aValue) MOZ_OVERRIDE; | |
| 72 | |
| 73 ResolvePromiseCallback(Promise* aPromise, JS::Handle<JSObject*> aGlobal); | |
| 74 ~ResolvePromiseCallback(); | |
| 75 | |
| 76 private: | |
| 77 nsRefPtr<Promise> mPromise; | |
| 78 JS::Heap<JSObject*> mGlobal; | |
| 79 }; | |
| 80 | |
| 81 // RejectPromiseCallback calls aPromise->RejectFunction() with the value | |
| 82 // received by Call(). | |
| 83 class RejectPromiseCallback MOZ_FINAL : public PromiseCallback | |
| 84 { | |
| 85 public: | |
| 86 NS_DECL_ISUPPORTS_INHERITED | |
| 87 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(RejectPromiseCallback, | |
| 88 PromiseCallback) | |
| 89 | |
| 90 void Call(JS::Handle<JS::Value> aValue) MOZ_OVERRIDE; | |
| 91 | |
| 92 RejectPromiseCallback(Promise* aPromise, JS::Handle<JSObject*> aGlobal); | |
| 93 ~RejectPromiseCallback(); | |
| 94 | |
| 95 private: | |
| 96 nsRefPtr<Promise> mPromise; | |
| 97 JS::Heap<JSObject*> mGlobal; | |
| 98 }; | |
| 99 | |
| 100 // NativePromiseCallback wraps a NativePromiseHandler. | |
| 101 class NativePromiseCallback MOZ_FINAL : public PromiseCallback | |
| 102 { | |
| 103 public: | |
| 104 NS_DECL_ISUPPORTS_INHERITED | |
| 105 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(NativePromiseCallback, | |
| 106 PromiseCallback) | |
| 107 | |
| 108 void Call(JS::Handle<JS::Value> aValue) MOZ_OVERRIDE; | |
| 109 | |
| 110 NativePromiseCallback(PromiseNativeHandler* aHandler, | |
| 111 Promise::PromiseState aState); | |
| 112 ~NativePromiseCallback(); | |
| 113 | |
| 114 private: | |
| 115 nsRefPtr<PromiseNativeHandler> mHandler; | |
| 116 Promise::PromiseState mState; | |
| 117 }; | |
| 118 | |
| 119 } // namespace dom | |
| 120 } // namespace mozilla | |
| 121 | |
| 122 #endif // mozilla_dom_PromiseCallback_h |
