Emilio Cobos Álvarez
2861287f6d
Autogenerated with:
cp dom/.clang-format widget/ && mach format widget/**.{cpp,h,mm}
Manual changes:
* Had to add a manual override in nsWaylandDisplay.h /
DMABufFormats.cpp to include mozwayland before protocols.
* Missing includes in nsWindowWayland/X11.h / nsDragService.
* nsFilePicker missed an nsWindow forward declaration.
* Various overrides in widget/windows because windows headers are order
dependent.
Differential Revision: https://phabricator.services.mozilla.com/D311688
106 lines
4.0 KiB
C++
106 lines
4.0 KiB
C++
/* 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_widget_EventDispatcherBase_h
|
|
#define mozilla_widget_EventDispatcherBase_h
|
|
|
|
#include "mozilla/ErrorResult.h"
|
|
#include "mozilla/EventTargetAndLockCapability.h"
|
|
#include "mozilla/Mutex.h"
|
|
#include "mozilla/dom/ScriptSettings.h"
|
|
#include "mozilla/dom/ToJSValue.h"
|
|
#include "nsClassHashtable.h"
|
|
#include "nsHashKeys.h"
|
|
#include "nsIGeckoViewBridge.h"
|
|
#include "nsTObserverArray.h"
|
|
|
|
namespace mozilla::widget {
|
|
|
|
/**
|
|
* EventDispatcherBase is the core Gecko implementation of the EventDispatcher
|
|
* type in either Java or Swift. Together they make up a unified event bus.
|
|
* Events dispatched from the embedder may notify listeners on the Gecko side
|
|
* and vice versa.
|
|
*/
|
|
class EventDispatcherBase : public nsIGeckoViewEventDispatcher {
|
|
public:
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIGECKOVIEWEVENTDISPATCHER
|
|
|
|
EventDispatcherBase() = default;
|
|
|
|
bool HasGeckoListener(const nsAString& aEvent) MOZ_EXCLUDES(mLock.Lock());
|
|
nsresult DispatchToGecko(JSContext* aCx, const nsAString& aEvent,
|
|
JS::Handle<JS::Value> aData,
|
|
nsIGeckoViewEventCallback* aCallback)
|
|
MOZ_REQUIRES(sMainThreadCapability);
|
|
|
|
virtual bool HasEmbedderListener(const nsAString& aEvent)
|
|
MOZ_REQUIRES(sMainThreadCapability) = 0;
|
|
virtual nsresult DispatchToEmbedder(JSContext* aCx, const nsAString& aEvent,
|
|
JS::Handle<JS::Value> aData,
|
|
nsIGeckoViewEventCallback* aCallback)
|
|
MOZ_REQUIRES(sMainThreadCapability) = 0;
|
|
|
|
// C++-friendly nsIGeckoViewEventDispatcher::Dispatch.
|
|
// Invokes ToJSValue on the provided argument.
|
|
template <class T>
|
|
nsresult Dispatch(const nsAString& aEvent, T&& aData,
|
|
nsIGeckoViewEventCallback* aCallback = nullptr)
|
|
MOZ_REQUIRES(sMainThreadCapability) {
|
|
dom::AutoJSAPI jsapi;
|
|
NS_ENSURE_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()), NS_ERROR_FAILURE);
|
|
|
|
JS::Rooted<JS::Value> data(jsapi.cx());
|
|
if (!dom::ToJSValue(jsapi.cx(), std::forward<T>(aData), &data)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return DispatchInternal(jsapi.cx(), aEvent, data, aCallback);
|
|
}
|
|
|
|
protected:
|
|
virtual ~EventDispatcherBase() = default;
|
|
|
|
private:
|
|
void Destroy();
|
|
|
|
using ListenersList =
|
|
nsAutoTObserverArray<nsCOMPtr<nsIGeckoViewEventListener>, 1>;
|
|
|
|
// NOTE: This must be a nsClassHashtable to ensure that adding new keys to
|
|
// mListenersMap does not cause the ListenersList instances within the array
|
|
// to be relocated in memory.
|
|
using ListenersMap = nsClassHashtable<nsStringHashKey, ListenersList>;
|
|
|
|
using IterateEventsCallback = void (EventDispatcherBase::*)(
|
|
const nsAString&, nsIGeckoViewEventListener*);
|
|
|
|
nsresult IterateEvents(JSContext* aCx, JS::Handle<JS::Value> aEvents,
|
|
IterateEventsCallback aCallback,
|
|
nsIGeckoViewEventListener* aListener)
|
|
MOZ_REQUIRES(sMainThreadCapability);
|
|
void RegisterEventLocked(const nsAString&, nsIGeckoViewEventListener*)
|
|
MOZ_REQUIRES(mLock);
|
|
void UnregisterEventLocked(const nsAString&, nsIGeckoViewEventListener*)
|
|
MOZ_REQUIRES(mLock);
|
|
|
|
nsresult DispatchInternal(JSContext* aCx, const nsAString& aEvent,
|
|
JS::Handle<JS::Value> aData,
|
|
nsIGeckoViewEventCallback* aCallback = nullptr)
|
|
MOZ_REQUIRES(sMainThreadCapability);
|
|
nsresult DispatchToGeckoInternal(ListenersList* list, const nsAString& aEvent,
|
|
JS::Handle<JS::Value> aData,
|
|
nsIGeckoViewEventCallback* aCallback)
|
|
MOZ_REQUIRES(sMainThreadCapability);
|
|
|
|
MainThreadAndLockCapability<Mutex> mLock{
|
|
"mozilla::widget::EventDispatcherBase"};
|
|
ListenersMap mListenersMap MOZ_GUARDED_BY(mLock);
|
|
};
|
|
|
|
} // namespace mozilla::widget
|
|
|
|
#endif // mozilla_widget_EventDispatcherBase_h
|