Move Frame to the Oilpan heap.

Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
 {
 }
 
 InputMethodController::SelectionOffsetsScope::~SelectionOffsetsScope()
 {
     m_inputMethodController->setSelectionOffsets(m_offsets);
 }
 
 // ----------------------------
 
-PassOwnPtr<InputMethodController> InputMethodController::create(LocalFrame& frame)
+PassOwnPtrWillBeRawPtr<InputMethodController> InputMethodController::create(LocalFrame& frame)
 {
-    return adoptPtr(new InputMethodController(frame));
+    return adoptPtrWillBeNoop(new InputMethodController(frame));
 }
 
 InputMethodController::InputMethodController(LocalFrame& frame)
-    : m_frame(frame)
+    : m_frame(&frame)
     , m_compositionStart(0)
     , m_compositionEnd(0)
 {
 }
 
 InputMethodController::~InputMethodController()
 {
 }
 
 bool InputMethodController::hasComposition() const
 {
     return m_compositionNode && m_compositionNode->isContentEditable();
 }
 
 inline Editor& InputMethodController::editor() const
 {
-    return m_frame.editor();
+    return m_frame->editor();
 }
 
 void InputMethodController::clear()
 {
     m_compositionNode = nullptr;
     m_customCompositionUnderlines.clear();
 }
 
 bool InputMethodController::insertTextForConfirmedComposition(const String& text)
 {
-    return m_frame.eventHandler().handleTextInputEvent(text, 0, TextEventInputComposition);
+    return m_frame->eventHandler().handleTextInputEvent(text, 0, TextEventInputComposition);
 }
 
 void InputMethodController::selectComposition() const
 {
     RefPtrWillBeRawPtr<Range> range = compositionRange();
     if (!range)
         return;
 
     // The composition can start inside a composed character sequence, so we have to override checks.
     // See <http://bugs.webkit.org/show_bug.cgi?id=15781>
     VisibleSelection selection;
     selection.setWithoutValidation(range->startPosition(), range->endPosition());
-    m_frame.selection().setSelection(selection, 0);
+    m_frame->selection().setSelection(selection, 0);
 }
 
 bool InputMethodController::confirmComposition()
 {
     if (!hasComposition())
         return false;
     return finishComposition(m_compositionNode->data().substring(m_compositionStart, m_compositionEnd - m_compositionStart), ConfirmComposition);
 }
 
 bool InputMethodController::confirmComposition(const String& text)
@@ skipping 21 matching lines @@
     SelectionOffsetsScope selectionOffsetsScope(this);
     return confirmComposition();
 }
 
 void InputMethodController::confirmCompositionAndResetState()
 {
     if (!hasComposition())
         return;
 
     // ChromeClient::willSetInputMethodState() resets input method and the composition string is committed.
-    m_frame.chromeClient().willSetInputMethodState();
+    m_frame->chromeClient().willSetInputMethodState();
 }
 
 void InputMethodController::cancelComposition()
 {
     finishComposition(emptyString(), CancelComposition);
 }
 
 void InputMethodController::cancelCompositionIfSelectionIsInvalid()
 {
     if (!hasComposition() || editor().preventRevealSelection())
         return;
 
     // Check if selection start and selection end are valid.
-    Position start = m_frame.selection().start();
-    Position end = m_frame.selection().end();
+    Position start = m_frame->selection().start();
+    Position end = m_frame->selection().end();
     if (start.containerNode() == m_compositionNode
         && end.containerNode() == m_compositionNode
         && static_cast<unsigned>(start.computeOffsetInContainerNode()) >= m_compositionStart
         && static_cast<unsigned>(end.computeOffsetInContainerNode()) <= m_compositionEnd)
         return;
 
     cancelComposition();
-    m_frame.chromeClient().didCancelCompositionOnSelectionChange();
+    m_frame->chromeClient().didCancelCompositionOnSelectionChange();
 }
 
 bool InputMethodController::finishComposition(const String& text, FinishCompositionMode mode)
 {
     if (!hasComposition())
         return false;
 
     ASSERT(mode == ConfirmComposition || mode == CancelComposition);
 
     Editor::RevealSelectionScope revealSelectionScope(&editor());
 
     if (mode == CancelComposition)
         ASSERT(text == emptyString());
     else
         selectComposition();
 
-    if (m_frame.selection().isNone())
+    if (m_frame->selection().isNone())
         return false;
 
     // Dispatch a compositionend event to the focused node.
     // We should send this event before sending a TextEvent as written in Section 6.2.2 and 6.2.3 of
     // the DOM Event specification.
-    if (Element* target = m_frame.document()->focusedElement()) {
-        unsigned baseOffset = m_frame.selection().base().downstream().deprecatedEditingOffset();
+    if (Element* target = m_frame->document()->focusedElement()) {
+        unsigned baseOffset = m_frame->selection().base().downstream().deprecatedEditingOffset();
         Vector<CompositionUnderline> underlines;
         for (size_t i = 0; i < m_customCompositionUnderlines.size(); ++i) {
             CompositionUnderline underline = m_customCompositionUnderlines[i];
             underline.startOffset -= baseOffset;
             underline.endOffset -= baseOffset;
             underlines.append(underline);
         }
-        RefPtrWillBeRawPtr<CompositionEvent> event = CompositionEvent::create(EventTypeNames::compositionend, m_frame.domWindow(), text, underlines);
+        RefPtrWillBeRawPtr<CompositionEvent> event = CompositionEvent::create(EventTypeNames::compositionend, m_frame->domWindow(), text, underlines);
         target->dispatchEvent(event, IGNORE_EXCEPTION);
     }
 
     // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
     // will delete the old composition with an optimized replace operation.
     if (text.isEmpty() && mode != CancelComposition) {
-        ASSERT(m_frame.document());
-        TypingCommand::deleteSelection(*m_frame.document(), 0);
+        ASSERT(m_frame->document());
+        TypingCommand::deleteSelection(*m_frame->document(), 0);
     }
 
     m_compositionNode = nullptr;
     m_customCompositionUnderlines.clear();
 
     insertTextForConfirmedComposition(text);
 
     if (mode == CancelComposition) {
         // An open typing command that disagrees about current selection would cause issues with typing later on.
-        TypingCommand::closeTyping(&m_frame);
+        TypingCommand::closeTyping(m_frame);
     }
 
     return true;
 }
 
 void InputMethodController::setComposition(const String& text, const Vector<CompositionUnderline>& underlines, unsigned selectionStart, unsigned selectionEnd)
 {
     Editor::RevealSelectionScope revealSelectionScope(&editor());
 
     // Updates styles before setting selection for composition to prevent
     // inserting the previous composition text into text nodes oddly.
     // See https://bugs.webkit.org/show_bug.cgi?id=46868
-    m_frame.document()->updateRenderTreeIfNeeded();
+    m_frame->document()->updateRenderTreeIfNeeded();
 
     selectComposition();
 
-    if (m_frame.selection().isNone())
+    if (m_frame->selection().isNone())
         return;
 
-    if (Element* target = m_frame.document()->focusedElement()) {
+    if (Element* target = m_frame->document()->focusedElement()) {
         // Dispatch an appropriate composition event to the focused node.
         // We check the composition status and choose an appropriate composition event since this
         // function is used for three purposes:
         // 1. Starting a new composition.
         //    Send a compositionstart and a compositionupdate event when this function creates
         //    a new composition node, i.e.
         //    m_compositionNode == 0 && !text.isEmpty().
         //    Sending a compositionupdate event at this time ensures that at least one
         //    compositionupdate event is dispatched.
         // 2. Updating the existing composition node.
         //    Send a compositionupdate event when this function updates the existing composition
         //    node, i.e. m_compositionNode != 0 && !text.isEmpty().
         // 3. Canceling the ongoing composition.
         //    Send a compositionend event when function deletes the existing composition node, i.e.
         //    m_compositionNode != 0 && test.isEmpty().
         RefPtrWillBeRawPtr<CompositionEvent> event = nullptr;
         if (!hasComposition()) {
             // We should send a compositionstart event only when the given text is not empty because this
             // function doesn't create a composition node when the text is empty.
             if (!text.isEmpty()) {
-                target->dispatchEvent(CompositionEvent::create(EventTypeNames::compositionstart, m_frame.domWindow(), m_frame.selectedText(), underlines));
-                event = CompositionEvent::create(EventTypeNames::compositionupdate, m_frame.domWindow(), text, underlines);
+                target->dispatchEvent(CompositionEvent::create(EventTypeNames::compositionstart, m_frame->domWindow(), m_frame->selectedText(), underlines));
+                event = CompositionEvent::create(EventTypeNames::compositionupdate, m_frame->domWindow(), text, underlines);
             }
         } else {
             if (!text.isEmpty())
-                event = CompositionEvent::create(EventTypeNames::compositionupdate, m_frame.domWindow(), text, underlines);
+                event = CompositionEvent::create(EventTypeNames::compositionupdate, m_frame->domWindow(), text, underlines);
             else
-                event = CompositionEvent::create(EventTypeNames::compositionend, m_frame.domWindow(), text, underlines);
+                event = CompositionEvent::create(EventTypeNames::compositionend, m_frame->domWindow(), text, underlines);
         }
         if (event.get())
             target->dispatchEvent(event, IGNORE_EXCEPTION);
     }
 
     // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
     // will delete the old composition with an optimized replace operation.
     if (text.isEmpty()) {
-        ASSERT(m_frame.document());
-        TypingCommand::deleteSelection(*m_frame.document(), TypingCommand::PreventSpellChecking);
+        ASSERT(m_frame->document());
+        TypingCommand::deleteSelection(*m_frame->document(), TypingCommand::PreventSpellChecking);
     }
 
     m_compositionNode = nullptr;
     m_customCompositionUnderlines.clear();
 
     if (!text.isEmpty()) {
-        ASSERT(m_frame.document());
-        TypingCommand::insertText(*m_frame.document(), text, TypingCommand::SelectInsertedText | TypingCommand::PreventSpellChecking, TypingCommand::TextCompositionUpdate);
+        ASSERT(m_frame->document());
+        TypingCommand::insertText(*m_frame->document(), text, TypingCommand::SelectInsertedText | TypingCommand::PreventSpellChecking, TypingCommand::TextCompositionUpdate);
 
         // Find out what node has the composition now.
-        Position base = m_frame.selection().base().downstream();
-        Position extent = m_frame.selection().extent();
+        Position base = m_frame->selection().base().downstream();
+        Position extent = m_frame->selection().extent();
         Node* baseNode = base.deprecatedNode();
         unsigned baseOffset = base.deprecatedEditingOffset();
         Node* extentNode = extent.deprecatedNode();
         unsigned extentOffset = extent.deprecatedEditingOffset();
 
         if (baseNode && baseNode == extentNode && baseNode->isTextNode() && baseOffset + text.length() == extentOffset) {
             m_compositionNode = toText(baseNode);
             m_compositionStart = baseOffset;
             m_compositionEnd = extentOffset;
             m_customCompositionUnderlines = underlines;
             size_t numUnderlines = m_customCompositionUnderlines.size();
             for (size_t i = 0; i < numUnderlines; ++i) {
                 m_customCompositionUnderlines[i].startOffset += baseOffset;
                 m_customCompositionUnderlines[i].endOffset += baseOffset;
             }
             if (baseNode->renderer())
                 baseNode->renderer()->setShouldDoFullPaintInvalidation(true);
 
             unsigned start = std::min(baseOffset + selectionStart, extentOffset);
             unsigned end = std::min(std::max(start, baseOffset + selectionEnd), extentOffset);
             RefPtrWillBeRawPtr<Range> selectedRange = Range::create(baseNode->document(), baseNode, start, baseNode, end);
-            m_frame.selection().setSelectedRange(selectedRange.get(), DOWNSTREAM, FrameSelection::NonDirectional, NotUserTriggered);
+            m_frame->selection().setSelectedRange(selectedRange.get(), DOWNSTREAM, FrameSelection::NonDirectional, NotUserTriggered);
         }
     }
 }
 
 void InputMethodController::setCompositionFromExistingText(const Vector<CompositionUnderline>& underlines, unsigned compositionStart, unsigned compositionEnd)
 {
-    Element* editable = m_frame.selection().rootEditableElement();
-    Position base = m_frame.selection().base().downstream();
+    Element* editable = m_frame->selection().rootEditableElement();
+    Position base = m_frame->selection().base().downstream();
     Node* baseNode = base.anchorNode();
     if (editable->firstChild() == baseNode && editable->lastChild() == baseNode && baseNode->isTextNode()) {
         m_compositionNode = nullptr;
         m_customCompositionUnderlines.clear();
 
         if (base.anchorType() != Position::PositionIsOffsetInAnchor)
             return;
-        if (!baseNode || baseNode != m_frame.selection().extent().anchorNode())
+        if (!baseNode || baseNode != m_frame->selection().extent().anchorNode())
             return;
 
         m_compositionNode = toText(baseNode);
         RefPtrWillBeRawPtr<Range> range = PlainTextRange(compositionStart, compositionEnd).createRange(*editable);
         if (!range)
             return;
 
         m_compositionStart = range->startOffset();
         m_compositionEnd = range->endOffset();
         m_customCompositionUnderlines = underlines;
         size_t numUnderlines = m_customCompositionUnderlines.size();
         for (size_t i = 0; i < numUnderlines; ++i) {
             m_customCompositionUnderlines[i].startOffset += m_compositionStart;
             m_customCompositionUnderlines[i].endOffset += m_compositionStart;
         }
         if (baseNode->renderer())
             baseNode->renderer()->setShouldDoFullPaintInvalidation(true);
         return;
     }
 
     Editor::RevealSelectionScope revealSelectionScope(&editor());
     SelectionOffsetsScope selectionOffsetsScope(this);
     setSelectionOffsets(PlainTextRange(compositionStart, compositionEnd));
-    setComposition(m_frame.selectedText(), underlines, 0, 0);
+    setComposition(m_frame->selectedText(), underlines, 0, 0);
 }
 
 PassRefPtrWillBeRawPtr<Range> InputMethodController::compositionRange() const
 {
     if (!hasComposition())
         return nullptr;
     unsigned length = m_compositionNode->length();
     unsigned start = std::min(m_compositionStart, length);
     unsigned end = std::min(std::max(start, m_compositionEnd), length);
     if (start >= end)
         return nullptr;
     return Range::create(m_compositionNode->document(), m_compositionNode.get(), start, m_compositionNode.get(), end);
 }
 
 PlainTextRange InputMethodController::getSelectionOffsets() const
 {
-    RefPtrWillBeRawPtr<Range> range = m_frame.selection().selection().firstRange();
+    RefPtrWillBeRawPtr<Range> range = m_frame->selection().selection().firstRange();
     if (!range)
         return PlainTextRange();
-    ContainerNode* editable = m_frame.selection().rootEditableElementOrTreeScopeRootNode();
+    ContainerNode* editable = m_frame->selection().rootEditableElementOrTreeScopeRootNode();
     ASSERT(editable);
     return PlainTextRange::create(*editable, *range.get());
 }
 
 bool InputMethodController::setSelectionOffsets(const PlainTextRange& selectionOffsets)
 {
     if (selectionOffsets.isNull())
         return false;
-    Element* rootEditableElement = m_frame.selection().rootEditableElement();
+    Element* rootEditableElement = m_frame->selection().rootEditableElement();
     if (!rootEditableElement)
         return false;
 
     RefPtrWillBeRawPtr<Range> range = selectionOffsets.createRange(*rootEditableElement);
     if (!range)
         return false;
 
-    return m_frame.selection().setSelectedRange(range.get(), VP_DEFAULT_AFFINITY, FrameSelection::NonDirectional, FrameSelection::CloseTyping);
+    return m_frame->selection().setSelectedRange(range.get(), VP_DEFAULT_AFFINITY, FrameSelection::NonDirectional, FrameSelection::CloseTyping);
 }
 
 bool InputMethodController::setEditableSelectionOffsets(const PlainTextRange& selectionOffsets)
 {
     if (!editor().canEdit())
         return false;
     return setSelectionOffsets(selectionOffsets);
 }
 
 void InputMethodController::extendSelectionAndDelete(int before, int after)
@@ skipping 15 matching lines @@
     // that will not delete a full multi-code-point composition but rather
     // only the last code-point so that it's possible for a user to correct
     // a composition without starting it from the beginning.
     // http://crbug.com/37993
     do {
         if (!setSelectionOffsets(PlainTextRange(std::max(static_cast<int>(selectionOffsets.start()) - before, 0), selectionOffsets.end() + after)))
             return;
         if (before == 0)
             break;
         ++before;
-    } while (m_frame.selection().start() == m_frame.selection().end() && before <= static_cast<int>(selectionOffsets.start()));
-    TypingCommand::deleteSelection(*m_frame.document());
+    } while (m_frame->selection().start() == m_frame->selection().end() && before <= static_cast<int>(selectionOffsets.start()));
+    TypingCommand::deleteSelection(*m_frame->document());
+}
+
+void InputMethodController::trace(Visitor* visitor)
+{
+    visitor->trace(m_frame);
+    visitor->trace(m_compositionNode);
 }
 
 } // namespace blink