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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=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 "nsQueryContentEventResult.h"
#include <utility>
#include "mozilla/TextEvents.h"
#include "nsIWidget.h"
#include "nsPoint.h"
using namespace mozilla;
/******************************************************************************
* Is*PropertyAvailable() methods which check if the property is available
* (valid) with the event message.
******************************************************************************/
static bool IsNotFoundPropertyAvailable(EventMessage aEventMessage) {
return aEventMessage == eQuerySelectedText ||
aEventMessage == eQueryCharacterAtPoint;
}
static bool IsOffsetPropertyAvailable(EventMessage aEventMessage) {
return aEventMessage == eQueryTextContent ||
aEventMessage == eQueryTextRect || aEventMessage == eQueryCaretRect ||
IsNotFoundPropertyAvailable(aEventMessage);
}
static bool IsRectRelatedPropertyAvailable(EventMessage aEventMessage) {
return aEventMessage == eQueryCaretRect || aEventMessage == eQueryTextRect ||
aEventMessage == eQueryEditorRect ||
aEventMessage == eQueryCharacterAtPoint;
}
/******************************************************************************
* nsQueryContentEventResult
******************************************************************************/
NS_INTERFACE_MAP_BEGIN(nsQueryContentEventResult)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIQueryContentEventResult)
NS_INTERFACE_MAP_ENTRY(nsIQueryContentEventResult)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsQueryContentEventResult)
NS_IMPL_RELEASE(nsQueryContentEventResult)
nsQueryContentEventResult::nsQueryContentEventResult(
mozilla::WidgetQueryContentEvent&& aEvent)
: mEventMessage(aEvent.mMessage),
mSucceeded(aEvent.Succeeded()),
mReversed(false) {
if (mSucceeded) {
mOffsetAndData = std::move(aEvent.mReply->mOffsetAndData);
mTentativeCaretOffset = std::move(aEvent.mReply->mTentativeCaretOffset);
mRect = std::move(aEvent.mReply->mRect);
mRectArray = std::move(aEvent.mReply->mRectArray);
mReversed = aEvent.mReply->mReversed;
}
// Mark as result that is longer used.
aEvent.mReply.reset();
}
NS_IMETHODIMP
nsQueryContentEventResult::GetOffset(uint32_t* aOffset) {
if (NS_WARN_IF(!mSucceeded)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (NS_WARN_IF(!IsOffsetPropertyAvailable(mEventMessage))) {
return NS_ERROR_NOT_AVAILABLE;
}
// With some event message, both offset and notFound properties are available.
// In that case, offset value may mean "not found". If so, this method
// shouldn't return mOffset as the result because it's a special value for
// "not found".
if (IsNotFoundPropertyAvailable(mEventMessage)) {
bool notFound;
nsresult rv = GetNotFound(¬Found);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv; // Just an unexpected case...
}
// As said above, if mOffset means "not found", offset property shouldn't
// return its value without any errors.
if (NS_WARN_IF(notFound)) {
return NS_ERROR_NOT_AVAILABLE;
}
}
*aOffset = mOffsetAndData->StartOffset();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetTentativeCaretOffset(uint32_t* aOffset) {
bool notFound;
nsresult rv = GetTentativeCaretOffsetNotFound(¬Found);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(notFound)) {
return NS_ERROR_NOT_AVAILABLE;
}
*aOffset = mTentativeCaretOffset.value();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetReversed(bool* aReversed) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(mEventMessage == eQuerySelectedText, NS_ERROR_NOT_AVAILABLE);
*aReversed = mReversed;
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetLeft(int32_t* aLeft) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(IsRectRelatedPropertyAvailable(mEventMessage),
NS_ERROR_NOT_AVAILABLE);
*aLeft = mRect.x;
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetWidth(int32_t* aWidth) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(IsRectRelatedPropertyAvailable(mEventMessage),
NS_ERROR_NOT_AVAILABLE);
*aWidth = mRect.Width();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetTop(int32_t* aTop) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(IsRectRelatedPropertyAvailable(mEventMessage),
NS_ERROR_NOT_AVAILABLE);
*aTop = mRect.y;
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetHeight(int32_t* aHeight) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(IsRectRelatedPropertyAvailable(mEventMessage),
NS_ERROR_NOT_AVAILABLE);
*aHeight = mRect.Height();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetText(nsAString& aText) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(mEventMessage == eQuerySelectedText ||
mEventMessage == eQueryTextContent ||
mEventMessage == eQueryTextRect,
NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(mOffsetAndData.isSome(), NS_ERROR_NOT_AVAILABLE);
aText = mOffsetAndData->DataRef();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetSucceeded(bool* aSucceeded) {
NS_ENSURE_TRUE(mEventMessage != eVoidEvent, NS_ERROR_NOT_INITIALIZED);
*aSucceeded = mSucceeded;
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetNotFound(bool* aNotFound) {
if (NS_WARN_IF(!mSucceeded) ||
NS_WARN_IF(!IsNotFoundPropertyAvailable(mEventMessage))) {
return NS_ERROR_NOT_AVAILABLE;
}
*aNotFound = mOffsetAndData.isNothing();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetTentativeCaretOffsetNotFound(bool* aNotFound) {
if (NS_WARN_IF(!mSucceeded)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (NS_WARN_IF(mEventMessage != eQueryCharacterAtPoint)) {
return NS_ERROR_NOT_AVAILABLE;
}
*aNotFound = mTentativeCaretOffset.isNothing();
return NS_OK;
}
NS_IMETHODIMP
nsQueryContentEventResult::GetCharacterRect(int32_t aOffset, int32_t* aLeft,
int32_t* aTop, int32_t* aWidth,
int32_t* aHeight) {
NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(mEventMessage == eQueryTextRectArray, NS_ERROR_NOT_AVAILABLE);
if (NS_WARN_IF(mRectArray.Length() <= static_cast<size_t>(aOffset))) {
return NS_ERROR_FAILURE;
}
*aLeft = mRectArray[aOffset].x;
*aTop = mRectArray[aOffset].y;
*aWidth = mRectArray[aOffset].Width();
*aHeight = mRectArray[aOffset].Height();
return NS_OK;
}
void nsQueryContentEventResult::SetEventResult(nsIWidget* aWidget) {
if (!IsRectRelatedPropertyAvailable(mEventMessage) || !aWidget ||
!mSucceeded) {
return;
}
nsIWidget* topWidget = aWidget->GetTopLevelWidget();
if (!topWidget || topWidget == aWidget) {
return;
}
// Convert the top widget related coordinates to the given widget's.
LayoutDeviceIntPoint offset =
aWidget->WidgetToScreenOffset() - topWidget->WidgetToScreenOffset();
mRect.MoveBy(-offset);
for (size_t i = 0; i < mRectArray.Length(); i++) {
mRectArray[i].MoveBy(-offset);
}
}
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