mirror of
https://github.com/mozilla/gecko-dev.git
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122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DocAccessibleChild.h"
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#include "Accessible-inl.h"
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#include "nsIPersistentProperties2.h"
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#include "nsISimpleEnumerator.h"
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namespace mozilla {
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namespace a11y {
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void
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SerializeTree(Accessible* aRoot, nsTArray<AccessibleData>& aTree)
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{
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uint64_t id = reinterpret_cast<uint64_t>(aRoot->UniqueID());
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uint32_t role = aRoot->Role();
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uint32_t childCount = aRoot->ChildCount();
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// OuterDocAccessibles are special because we don't want to serialize the
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// child doc here, we'll call PDocAccessibleConstructor in
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// NotificationController.
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if (childCount == 1 && aRoot->GetChildAt(0)->IsDoc())
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childCount = 0;
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aTree.AppendElement(AccessibleData(id, role, childCount));
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for (uint32_t i = 0; i < childCount; i++)
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SerializeTree(aRoot->GetChildAt(i), aTree);
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}
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void
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DocAccessibleChild::ShowEvent(AccShowEvent* aShowEvent)
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{
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Accessible* parent = aShowEvent->Parent();
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uint64_t parentID = parent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(parent->UniqueID());
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uint32_t idxInParent = aShowEvent->GetAccessible()->IndexInParent();
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nsTArray<AccessibleData> shownTree;
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ShowEventData data(parentID, idxInParent, shownTree);
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SerializeTree(aShowEvent->GetAccessible(), data.NewTree());
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SendShowEvent(data);
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}
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bool
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DocAccessibleChild::RecvState(const uint64_t& aID, uint64_t* aState)
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{
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Accessible* acc = mDoc->GetAccessibleByUniqueID((void*)aID);
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if (!acc) {
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*aState = states::DEFUNCT;
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return true;
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}
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*aState = acc->State();
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return true;
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}
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bool
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DocAccessibleChild::RecvName(const uint64_t& aID, nsString* aName)
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{
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Accessible* acc = mDoc->GetAccessibleByUniqueID((void*)aID);
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if (!acc)
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return true;
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acc->Name(*aName);
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return true;
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}
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bool
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DocAccessibleChild::RecvDescription(const uint64_t& aID, nsString* aDesc)
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{
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Accessible* acc = mDoc->GetAccessibleByUniqueID((void*)aID);
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if (!acc)
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return true;
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acc->Description(*aDesc);
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return true;
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}
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bool
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DocAccessibleChild::RecvAttributes(const uint64_t& aID, nsTArray<Attribute>* aAttributes)
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{
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Accessible* acc = mDoc->GetAccessibleByUniqueID((void*)aID);
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if (!acc)
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return true;
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nsCOMPtr<nsIPersistentProperties> props = acc->Attributes();
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if (!props)
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return true;
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nsCOMPtr<nsISimpleEnumerator> propEnum;
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nsresult rv = props->Enumerate(getter_AddRefs(propEnum));
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NS_ENSURE_SUCCESS(rv, false);
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bool hasMore;
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while (NS_SUCCEEDED(propEnum->HasMoreElements(&hasMore)) && hasMore) {
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nsCOMPtr<nsISupports> sup;
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rv = propEnum->GetNext(getter_AddRefs(sup));
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NS_ENSURE_SUCCESS(rv, false);
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nsCOMPtr<nsIPropertyElement> propElem(do_QueryInterface(sup));
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NS_ENSURE_TRUE(propElem, false);
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nsAutoCString name;
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rv = propElem->GetKey(name);
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NS_ENSURE_SUCCESS(rv, false);
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nsAutoString value;
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rv = propElem->GetValue(value);
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NS_ENSURE_SUCCESS(rv, false);
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aAttributes->AppendElement(Attribute(name, value));
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}
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return true;
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}
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}
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}
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