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/* -*- 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/. */
#include "xpcAccessibleTextRange.h"
#include "TextRange-inl.h"
#include "nsIMutableArray.h"
#include "nsComponentManagerUtils.h"
#include "nsQueryObject.h"
#include "xpcAccessibleDocument.h"
using namespace mozilla;
using namespace mozilla::a11y;
// nsISupports and cycle collection
NS_INTERFACE_MAP_BEGIN(xpcAccessibleTextRange)
NS_INTERFACE_MAP_ENTRY(nsIAccessibleTextRange)
NS_INTERFACE_MAP_ENTRY(xpcAccessibleTextRange)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIAccessibleTextRange)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(xpcAccessibleTextRange)
NS_IMPL_RELEASE(xpcAccessibleTextRange)
a11y::TextRange xpcAccessibleTextRange::Range() {
return a11y::TextRange(mRoot->ToInternalGeneric(),
mStartContainer->ToInternalGeneric(), mStartOffset,
mEndContainer->ToInternalGeneric(), mEndOffset);
}
void xpcAccessibleTextRange::SetRange(TextRange& aRange) {
mRoot = ToXPCText(aRange.Root());
mStartContainer = ToXPCText(aRange.StartContainer());
mStartOffset = aRange.StartOffset();
mEndContainer = ToXPCText(aRange.EndContainer());
mEndOffset = aRange.EndOffset();
}
// nsIAccessibleTextRange
NS_IMETHODIMP
xpcAccessibleTextRange::GetStartContainer(nsIAccessibleText** aAnchor) {
NS_ENSURE_ARG_POINTER(aAnchor);
NS_IF_ADDREF(*aAnchor = mStartContainer);
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetStartOffset(int32_t* aOffset) {
NS_ENSURE_ARG_POINTER(aOffset);
*aOffset = mStartOffset;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetEndContainer(nsIAccessibleText** aAnchor) {
NS_ENSURE_ARG_POINTER(aAnchor);
NS_IF_ADDREF(*aAnchor = mEndContainer);
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetEndOffset(int32_t* aOffset) {
NS_ENSURE_ARG_POINTER(aOffset);
*aOffset = mEndOffset;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetContainer(nsIAccessible** aContainer) {
NS_ENSURE_ARG_POINTER(aContainer);
NS_IF_ADDREF(*aContainer = ToXPC(Range().Container()));
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetEmbeddedChildren(nsIArray** aList) {
nsresult rv = NS_OK;
nsCOMPtr<nsIMutableArray> xpcList =
do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsTArray<Accessible*> objects;
Range().EmbeddedChildren(&objects);
uint32_t len = objects.Length();
for (uint32_t idx = 0; idx < len; idx++) {
xpcList->AppendElement(static_cast<nsIAccessible*>(ToXPC(objects[idx])));
}
xpcList.forget(aList);
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::Compare(nsIAccessibleTextRange* aOtherRange,
bool* aResult) {
RefPtr<xpcAccessibleTextRange> xpcRange(do_QueryObject(aOtherRange));
if (!xpcRange || !aResult) return NS_ERROR_INVALID_ARG;
*aResult = (Range() == xpcRange->Range());
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::CompareEndPoints(uint32_t aEndPoint,
nsIAccessibleTextRange* aOtherRange,
uint32_t aOtherRangeEndPoint,
int32_t* aResult) {
RefPtr<xpcAccessibleTextRange> xpcRange(do_QueryObject(aOtherRange));
if (!xpcRange || !aResult) return NS_ERROR_INVALID_ARG;
TextRange thisRange = Range();
TextRange otherRange = xpcRange->Range();
TextPoint p = (aEndPoint == EndPoint_Start) ? thisRange.StartPoint()
: thisRange.EndPoint();
TextPoint otherPoint = (aOtherRangeEndPoint == EndPoint_Start)
? otherRange.StartPoint()
: otherRange.EndPoint();
if (p == otherPoint) {
*aResult = 0;
} else {
*aResult = p < otherPoint ? -1 : 1;
}
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::GetText(nsAString& aText) {
nsAutoString text;
Range().Text(text);
aText.Assign(text);
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::Crop(nsIAccessible* aContainer, bool* aSuccess) {
Accessible* container = aContainer->ToInternalGeneric();
NS_ENSURE_TRUE(container, NS_ERROR_INVALID_ARG);
TextRange range = Range();
*aSuccess = range.Crop(container);
if (*aSuccess) {
SetRange(range);
}
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleTextRange::ScrollIntoView(uint32_t aHow) { return NS_OK; }
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