PermissionStatus.h (2230B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=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_PermissionStatus_h_ 8 #define mozilla_dom_PermissionStatus_h_ 9 10 #include "mozilla/DOMEventTargetHelper.h" 11 #include "mozilla/MozPromise.h" 12 #include "mozilla/dom/PermissionStatusBinding.h" 13 #include "mozilla/dom/PermissionsBinding.h" 14 15 namespace mozilla::dom { 16 17 class PermissionStatusSink; 18 19 class PermissionStatus : public DOMEventTargetHelper { 20 friend class PermissionStatusSink; 21 22 public: 23 using SimplePromise = MozPromise<nsresult, nsresult, true>; 24 25 PermissionStatus(nsIGlobalObject* aGlobal, PermissionName aName); 26 27 JSObject* WrapObject(JSContext* aCx, 28 JS::Handle<JSObject*> aGivenProto) override; 29 30 PermissionState State() const { return mState; } 31 void SetState(PermissionState aState) { mState = aState; } 32 33 IMPL_EVENT_HANDLER(change) 34 35 void DisconnectFromOwner() override; 36 37 PermissionName Name() const { return mName; } 38 39 void GetType(nsACString& aName) const; 40 41 RefPtr<SimplePromise> Init(); 42 43 protected: 44 ~PermissionStatus(); 45 46 /** 47 * This method returns the internal permission type, which should be equal to 48 * the permission name for all but the MIDI permission because of the SysEx 49 * support: internally, we have both "midi" and "midi-sysex" permission types 50 * but we only have a "midi" (public) permission name. 51 * 52 * Note: the `MidiPermissionDescriptor` descriptor has an optional `sysex` 53 * boolean, which is used to determine whether to return "midi" or 54 * "midi-sysex" for the MIDI permission. 55 */ 56 virtual nsLiteralCString GetPermissionType() const; 57 58 private: 59 virtual already_AddRefed<PermissionStatusSink> CreateSink(); 60 61 void PermissionChanged(uint32_t aAction); 62 63 PermissionState ComputeStateFromAction(uint32_t aAction); 64 65 PermissionName mName; 66 RefPtr<PermissionStatusSink> mSink; 67 68 protected: 69 PermissionState mState; 70 }; 71 72 } // namespace mozilla::dom 73 74 #endif // mozilla_dom_permissionstatus_h_