зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.2 KiB
C++
88 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
|
/* 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_a11y_DocAccessibleChildBase_h
|
|
#define mozilla_a11y_DocAccessibleChildBase_h
|
|
|
|
#include "mozilla/a11y/DocAccessible.h"
|
|
#include "mozilla/a11y/PDocAccessibleChild.h"
|
|
#include "mozilla/Unused.h"
|
|
#include "nsISupportsImpl.h"
|
|
|
|
namespace mozilla {
|
|
namespace a11y {
|
|
|
|
class Accessible;
|
|
class AccShowEvent;
|
|
|
|
class DocAccessibleChildBase : public PDocAccessibleChild {
|
|
public:
|
|
explicit DocAccessibleChildBase(DocAccessible* aDoc)
|
|
: mDoc(aDoc), mIsRemoteConstructed(false) {
|
|
MOZ_COUNT_CTOR(DocAccessibleChildBase);
|
|
}
|
|
|
|
~DocAccessibleChildBase() {
|
|
// Shutdown() should have been called, but maybe it isn't if the process is
|
|
// killed?
|
|
MOZ_ASSERT(!mDoc);
|
|
if (mDoc) {
|
|
mDoc->SetIPCDoc(nullptr);
|
|
}
|
|
|
|
MOZ_COUNT_DTOR(DocAccessibleChildBase);
|
|
}
|
|
|
|
virtual void Shutdown() {
|
|
DetachDocument();
|
|
SendShutdown();
|
|
}
|
|
|
|
/**
|
|
* Serializes a shown tree and sends it to the chrome process.
|
|
*/
|
|
void InsertIntoIpcTree(Accessible* aParent, Accessible* aChild,
|
|
uint32_t aIdxInParent);
|
|
void ShowEvent(AccShowEvent* aShowEvent);
|
|
|
|
virtual void ActorDestroy(ActorDestroyReason) override {
|
|
if (!mDoc) {
|
|
return;
|
|
}
|
|
|
|
mDoc->SetIPCDoc(nullptr);
|
|
mDoc = nullptr;
|
|
}
|
|
|
|
protected:
|
|
static uint32_t InterfacesFor(Accessible* aAcc);
|
|
static void SerializeTree(Accessible* aRoot, nsTArray<AccessibleData>& aTree);
|
|
|
|
virtual void MaybeSendShowEvent(ShowEventData& aData, bool aFromUser) {
|
|
Unused << SendShowEvent(aData, aFromUser);
|
|
}
|
|
|
|
void DetachDocument() {
|
|
if (mDoc) {
|
|
mDoc->SetIPCDoc(nullptr);
|
|
mDoc = nullptr;
|
|
}
|
|
}
|
|
|
|
bool IsConstructedInParentProcess() const { return mIsRemoteConstructed; }
|
|
void SetConstructedInParentProcess() { mIsRemoteConstructed = true; }
|
|
|
|
DocAccessible* mDoc;
|
|
bool mIsRemoteConstructed;
|
|
|
|
friend void DocAccessible::DoInitialUpdate();
|
|
};
|
|
|
|
} // namespace a11y
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_a11y_DocAccessibleChildBase_h
|