/usr/include/thunderbird/mozilla/dom/PushNotifier.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
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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 | /* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_PushNotifier_h
#define mozilla_dom_PushNotifier_h
#include "nsIPushNotifier.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIPrincipal.h"
#include "nsString.h"
#include "mozilla/Maybe.h"
namespace mozilla {
namespace dom {
class ContentChild;
class ContentParent;
/**
* `PushDispatcher` is a base class used to forward observer notifications and
* service worker events to the correct process.
*/
class MOZ_STACK_CLASS PushDispatcher
{
public:
// Fires an XPCOM observer notification. This method may be called from both
// processes.
virtual nsresult NotifyObservers() = 0;
// Fires a service worker event. This method is called from the content
// process if e10s is enabled, or the parent otherwise.
virtual nsresult NotifyWorkers() = 0;
// A convenience method that calls `NotifyObservers` and `NotifyWorkers`.
nsresult NotifyObserversAndWorkers();
// Sends an IPDL message to fire an observer notification in the parent
// process. This method is only called from the content process, and only
// if e10s is enabled.
virtual bool SendToParent(ContentChild* aParentActor) = 0;
// Sends an IPDL message to fire an observer notification and a service worker
// event in the content process. This method is only called from the parent,
// and only if e10s is enabled.
virtual bool SendToChild(ContentParent* aContentActor) = 0;
// An optional method, called from the parent if e10s is enabled and there
// are no active content processes. The default behavior is a no-op.
virtual nsresult HandleNoChildProcesses();
protected:
PushDispatcher(const nsACString& aScope,
nsIPrincipal* aPrincipal);
virtual ~PushDispatcher();
bool ShouldNotifyWorkers();
nsresult DoNotifyObservers(nsISupports *aSubject, const char *aTopic,
const nsACString& aScope);
const nsCString mScope;
nsCOMPtr<nsIPrincipal> mPrincipal;
};
/**
* `PushNotifier` implements the `nsIPushNotifier` interface. This service
* broadcasts XPCOM observer notifications for incoming push messages, then
* forwards incoming push messages to service workers.
*
* All scriptable methods on this interface may be called from the parent or
* content process. Observer notifications are broadcasted to both processes.
*/
class PushNotifier final : public nsIPushNotifier
{
public:
PushNotifier();
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(PushNotifier, nsIPushNotifier)
NS_DECL_NSIPUSHNOTIFIER
private:
~PushNotifier();
nsresult Dispatch(PushDispatcher& aDispatcher);
};
/**
* `PushData` provides methods for retrieving push message data in different
* formats. This class is similar to the `PushMessageData` WebIDL interface.
*/
class PushData final : public nsIPushData
{
public:
explicit PushData(const nsTArray<uint8_t>& aData);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(PushData, nsIPushData)
NS_DECL_NSIPUSHDATA
private:
~PushData();
nsresult EnsureDecodedText();
nsTArray<uint8_t> mData;
nsString mDecodedText;
};
/**
* `PushMessage` exposes the subscription principal and data for a push
* message. Each `push-message` observer receives an instance of this class
* as the subject.
*/
class PushMessage final : public nsIPushMessage
{
public:
PushMessage(nsIPrincipal* aPrincipal, nsIPushData* aData);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(PushMessage, nsIPushMessage)
NS_DECL_NSIPUSHMESSAGE
private:
~PushMessage();
nsCOMPtr<nsIPrincipal> mPrincipal;
nsCOMPtr<nsIPushData> mData;
};
class PushMessageDispatcher final : public PushDispatcher
{
public:
PushMessageDispatcher(const nsACString& aScope,
nsIPrincipal* aPrincipal,
const nsAString& aMessageId,
const Maybe<nsTArray<uint8_t>>& aData);
~PushMessageDispatcher();
nsresult NotifyObservers() override;
nsresult NotifyWorkers() override;
bool SendToParent(ContentChild* aParentActor) override;
bool SendToChild(ContentParent* aContentActor) override;
private:
const nsString mMessageId;
const Maybe<nsTArray<uint8_t>> mData;
};
class PushSubscriptionChangeDispatcher final : public PushDispatcher
{
public:
PushSubscriptionChangeDispatcher(const nsACString& aScope,
nsIPrincipal* aPrincipal);
~PushSubscriptionChangeDispatcher();
nsresult NotifyObservers() override;
nsresult NotifyWorkers() override;
bool SendToParent(ContentChild* aParentActor) override;
bool SendToChild(ContentParent* aContentActor) override;
};
class PushSubscriptionModifiedDispatcher : public PushDispatcher
{
public:
PushSubscriptionModifiedDispatcher(const nsACString& aScope,
nsIPrincipal* aPrincipal);
~PushSubscriptionModifiedDispatcher();
nsresult NotifyObservers() override;
nsresult NotifyWorkers() override;
bool SendToParent(ContentChild* aParentActor) override;
bool SendToChild(ContentParent* aContentActor) override;
};
class PushErrorDispatcher final : public PushDispatcher
{
public:
PushErrorDispatcher(const nsACString& aScope,
nsIPrincipal* aPrincipal,
const nsAString& aMessage,
uint32_t aFlags);
~PushErrorDispatcher();
nsresult NotifyObservers() override;
nsresult NotifyWorkers() override;
bool SendToParent(ContentChild* aParentActor) override;
bool SendToChild(ContentParent* aContentActor) override;
private:
nsresult HandleNoChildProcesses() override;
const nsString mMessage;
uint32_t mFlags;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PushNotifier_h
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