mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
589 lines
17 KiB
C++
589 lines
17 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 "ProxyAccessible.h"
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#include "Relation.h"
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#include "HyperTextAccessible-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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static uint32_t
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InterfacesFor(Accessible* aAcc)
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{
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uint32_t interfaces = 0;
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if (aAcc->IsHyperText() && aAcc->AsHyperText()->IsTextRole())
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interfaces |= Interfaces::HYPERTEXT;
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return interfaces;
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}
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static 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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uint32_t interfaces = InterfacesFor(aRoot);
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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, interfaces));
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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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Accessible*
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DocAccessibleChild::IdToAccessible(const uint64_t& aID)
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{
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return mDoc->GetAccessibleByUniqueID(reinterpret_cast<void*>(aID));
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}
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HyperTextAccessible*
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DocAccessibleChild::IdToHyperTextAccessible(const uint64_t& aID)
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{
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Accessible* acc = IdToAccessible(aID);
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MOZ_ASSERT(!acc || acc->IsHyperText());
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return acc ? acc->AsHyperText() : nullptr;
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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 = IdToAccessible(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 = IdToAccessible(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::RecvValue(const uint64_t& aID, nsString* aValue)
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{
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Accessible* acc = IdToAccessible(aID);
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if (!acc) {
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return true;
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}
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acc->Value(*aValue);
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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 = IdToAccessible(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 = IdToAccessible(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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return PersistentPropertiesToArray(props, aAttributes);
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}
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bool
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DocAccessibleChild::PersistentPropertiesToArray(nsIPersistentProperties* aProps,
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nsTArray<Attribute>* aAttributes)
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{
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if (!aProps) {
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return true;
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}
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nsCOMPtr<nsISimpleEnumerator> propEnum;
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nsresult rv = aProps->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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bool
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DocAccessibleChild::RecvRelationByType(const uint64_t& aID,
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const uint32_t& aType,
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nsTArray<uint64_t>* aTargets)
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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 false;
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auto type = static_cast<RelationType>(aType);
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Relation rel = acc->RelationByType(type);
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while (Accessible* target = rel.Next())
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aTargets->AppendElement(reinterpret_cast<uintptr_t>(target));
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return true;
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}
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static void
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AddRelation(Accessible* aAcc, RelationType aType,
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nsTArray<RelationTargets>* aTargets)
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{
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Relation rel = aAcc->RelationByType(aType);
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nsTArray<uint64_t> targets;
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while (Accessible* target = rel.Next())
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targets.AppendElement(reinterpret_cast<uintptr_t>(target));
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if (!targets.IsEmpty()) {
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RelationTargets* newRelation =
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aTargets->AppendElement(RelationTargets(static_cast<uint32_t>(aType),
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nsTArray<uint64_t>()));
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newRelation->Targets().SwapElements(targets);
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}
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}
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bool
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DocAccessibleChild::RecvRelations(const uint64_t& aID,
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nsTArray<RelationTargets>* aRelations)
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{
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Accessible* acc = mDoc->GetAccessibleByUniqueID((void*)aID);
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if (!aID)
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return false;
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#define RELATIONTYPE(gecko, s, a, m, i) AddRelation(acc, RelationType::gecko, aRelations);
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#include "RelationTypeMap.h"
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#undef RELATIONTYPE
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return true;
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}
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bool
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DocAccessibleChild::RecvCaretOffset(const uint64_t& aID, int32_t* aOffset)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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*aOffset = acc && acc->IsTextRole() ? acc->CaretOffset() : 0;
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return true;
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}
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bool
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DocAccessibleChild::RecvSetCaretOffset(const uint64_t& aID,
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const int32_t& aOffset,
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bool* aRetVal)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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*aRetVal = false;
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if (acc && acc->IsTextRole() && acc->IsValidOffset(aOffset)) {
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*aRetVal = true;
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acc->SetCaretOffset(aOffset);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvCharacterCount(const uint64_t& aID, int32_t* aCount)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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*aCount = acc ? acc->CharacterCount() : 0;
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return true;
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}
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bool
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DocAccessibleChild::RecvSelectionCount(const uint64_t& aID, int32_t* aCount)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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*aCount = acc ? acc->SelectionCount() : 0;
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return true;
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}
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bool
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DocAccessibleChild::RecvTextSubstring(const uint64_t& aID,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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nsString* aText)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (!acc) {
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return true;
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}
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acc->TextSubstring(aStartOffset, aEndOffset, *aText);
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return true;
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}
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bool
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DocAccessibleChild::RecvGetTextAfterOffset(const uint64_t& aID,
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const int32_t& aOffset,
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const int32_t& aBoundaryType,
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nsString* aText,
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int32_t* aStartOffset,
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int32_t* aEndOffset)
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{
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*aStartOffset = 0;
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*aEndOffset = 0;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc) {
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acc->TextAfterOffset(aOffset, aBoundaryType,
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aStartOffset, aEndOffset, *aText);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvGetTextAtOffset(const uint64_t& aID,
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const int32_t& aOffset,
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const int32_t& aBoundaryType,
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nsString* aText,
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int32_t* aStartOffset,
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int32_t* aEndOffset)
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{
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*aStartOffset = 0;
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*aEndOffset = 0;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc) {
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acc->TextAtOffset(aOffset, aBoundaryType,
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aStartOffset, aEndOffset, *aText);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvGetTextBeforeOffset(const uint64_t& aID,
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const int32_t& aOffset,
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const int32_t& aBoundaryType,
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nsString* aText,
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int32_t* aStartOffset,
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int32_t* aEndOffset)
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{
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*aStartOffset = 0;
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*aEndOffset = 0;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc) {
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acc->TextBeforeOffset(aOffset, aBoundaryType,
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aStartOffset, aEndOffset, *aText);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvCharAt(const uint64_t& aID,
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const int32_t& aOffset,
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uint16_t* aChar)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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*aChar = acc && acc->IsTextRole() ?
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static_cast<uint16_t>(acc->CharAt(aOffset)) : 0;
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return true;
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}
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bool
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DocAccessibleChild::RecvTextAttributes(const uint64_t& aID,
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const bool& aIncludeDefAttrs,
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const int32_t& aOffset,
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nsTArray<Attribute>* aAttributes,
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int32_t* aStartOffset,
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int32_t* aEndOffset)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (!acc || !acc->IsTextRole()) {
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return true;
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}
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nsCOMPtr<nsIPersistentProperties> props =
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acc->TextAttributes(aIncludeDefAttrs, aOffset, aStartOffset, aEndOffset);
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return PersistentPropertiesToArray(props, aAttributes);
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}
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bool
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DocAccessibleChild::RecvDefaultTextAttributes(const uint64_t& aID,
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nsTArray<Attribute> *aAttributes)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (!acc || !acc->IsTextRole()) {
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return true;
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}
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nsCOMPtr<nsIPersistentProperties> props = acc->DefaultTextAttributes();
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return PersistentPropertiesToArray(props, aAttributes);
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}
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bool
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DocAccessibleChild::RecvTextBounds(const uint64_t& aID,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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const uint32_t& aCoordType,
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nsIntRect* aRetVal)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aRetVal = acc->TextBounds(aStartOffset, aEndOffset, aCoordType);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvCharBounds(const uint64_t& aID,
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const int32_t& aOffset,
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const uint32_t& aCoordType,
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nsIntRect* aRetVal)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aRetVal = acc->CharBounds(aOffset, aCoordType);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvOffsetAtPoint(const uint64_t& aID,
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const int32_t& aX,
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const int32_t& aY,
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const uint32_t& aCoordType,
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int32_t* aRetVal)
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{
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*aRetVal = -1;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aRetVal = acc->OffsetAtPoint(aX, aY, aCoordType);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvSelectionBoundsAt(const uint64_t& aID,
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const int32_t& aSelectionNum,
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bool* aSucceeded,
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nsString* aData,
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int32_t* aStartOffset,
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int32_t* aEndOffset)
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{
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*aSucceeded = false;
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*aStartOffset = 0;
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*aEndOffset = 0;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aSucceeded =
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acc->SelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
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if (*aSucceeded) {
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acc->TextSubstring(*aStartOffset, *aEndOffset, *aData);
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}
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvSetSelectionBoundsAt(const uint64_t& aID,
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const int32_t& aSelectionNum,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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bool* aSucceeded)
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{
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*aSucceeded = false;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aSucceeded =
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acc->SetSelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvAddToSelection(const uint64_t& aID,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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bool* aSucceeded)
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{
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*aSucceeded = false;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aSucceeded = acc->AddToSelection(aStartOffset, aEndOffset);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvRemoveFromSelection(const uint64_t& aID,
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const int32_t& aSelectionNum,
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bool* aSucceeded)
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{
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*aSucceeded = false;
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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*aSucceeded = acc->RemoveFromSelection(aSelectionNum);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvScrollSubstringTo(const uint64_t& aID,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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const uint32_t& aScrollType)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc) {
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acc->ScrollSubstringTo(aStartOffset, aEndOffset, aScrollType);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvScrollSubstringToPoint(const uint64_t& aID,
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const int32_t& aStartOffset,
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const int32_t& aEndOffset,
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const uint32_t& aCoordinateType,
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const int32_t& aX,
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const int32_t& aY)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc) {
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acc->ScrollSubstringToPoint(aStartOffset, aEndOffset, aCoordinateType,
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aX, aY);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvReplaceText(const uint64_t& aID,
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const nsString& aText)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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acc->ReplaceText(aText);
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}
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return true;
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}
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bool
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DocAccessibleChild::RecvInsertText(const uint64_t& aID,
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const nsString& aText,
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const int32_t& aPosition)
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{
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HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
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if (acc && acc->IsTextRole()) {
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acc->InsertText(aText, aPosition);
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}
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|
return true;
|
|
}
|
|
|
|
bool
|
|
DocAccessibleChild::RecvCopyText(const uint64_t& aID,
|
|
const int32_t& aStartPos,
|
|
const int32_t& aEndPos)
|
|
{
|
|
HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
|
|
if (acc && acc->IsTextRole()) {
|
|
acc->CopyText(aStartPos, aEndPos);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
DocAccessibleChild::RecvCutText(const uint64_t& aID,
|
|
const int32_t& aStartPos,
|
|
const int32_t& aEndPos)
|
|
{
|
|
HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
|
|
if (acc && acc->IsTextRole()) {
|
|
acc->CutText(aStartPos, aEndPos);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
DocAccessibleChild::RecvDeleteText(const uint64_t& aID,
|
|
const int32_t& aStartPos,
|
|
const int32_t& aEndPos)
|
|
{
|
|
HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
|
|
if (acc && acc->IsTextRole()) {
|
|
acc->DeleteText(aStartPos, aEndPos);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
DocAccessibleChild::RecvPasteText(const uint64_t& aID,
|
|
const int32_t& aPosition)
|
|
{
|
|
HyperTextAccessible* acc = IdToHyperTextAccessible(aID);
|
|
if (acc && acc->IsTextRole()) {
|
|
acc->PasteText(aPosition);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|
|
}
|