Add m-esr52 at 52.6.0

1 files changed, 256 insertions, 0 deletions

diff --git a/dom/base/nsQueryContentEventResult.cpp b/dom/base/nsQueryContentEventResult.cpp
new file mode 100644
index 0000000000..462cfe86a1
--- /dev/null
+++ b/dom/base/nsQueryContentEventResult.cpp
@@ -0,0 +1,256 @@
+/* -*- 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(&notFound);
+    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(&notFound);
+  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);
+  }
+}