/* -*- 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 "nsIWidget.h" #include "nsPoint.h" #include "nsQueryContentEventResult.h" #include "mozilla/Move.h" #include "mozilla/TextEvents.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() : mEventMessage(eVoidEvent) , mSucceeded(false) { } nsQueryContentEventResult::~nsQueryContentEventResult() { } 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 = mOffset; 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; 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, NS_ERROR_NOT_AVAILABLE); aText = mString; 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 = (mOffset == WidgetQueryContentEvent::NOT_FOUND); 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 == WidgetQueryContentEvent::NOT_FOUND); 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<uint32_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, WidgetQueryContentEvent &aEvent) { mEventMessage = aEvent.mMessage; mSucceeded = aEvent.mSucceeded; mReversed = aEvent.mReply.mReversed; mRect = aEvent.mReply.mRect; mOffset = aEvent.mReply.mOffset; mTentativeCaretOffset = aEvent.mReply.mTentativeCaretOffset; mString = aEvent.mReply.mString; mRectArray = mozilla::Move(aEvent.mReply.mRectArray); // Mark as result that is longer used. aEvent.mSucceeded = false; 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); } }