| /* |
| * Copyright (C) 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2015 Google Inc. All rights reserved. |
| * |
| * 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 |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef SelectionController_h |
| #define SelectionController_h |
| |
| #include "core/CoreExport.h" |
| #include "core/editing/TextGranularity.h" |
| #include "core/editing/VisibleSelection.h" |
| #include "core/page/EventWithHitTestResults.h" |
| #include "platform/heap/Handle.h" |
| |
| namespace blink { |
| |
| class FrameSelection; |
| class HitTestResult; |
| class LocalFrame; |
| |
| class SelectionController final : public NoBaseWillBeGarbageCollected<SelectionController> { |
| WTF_MAKE_NONCOPYABLE(SelectionController); |
| WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(SelectionController); |
| public: |
| static PassOwnPtrWillBeRawPtr<SelectionController> create(LocalFrame&); |
| DECLARE_TRACE(); |
| |
| void handleMousePressEvent(const MouseEventWithHitTestResults&); |
| bool handleMousePressEventSingleClick(const MouseEventWithHitTestResults&); |
| bool handleMousePressEventDoubleClick(const MouseEventWithHitTestResults&); |
| bool handleMousePressEventTripleClick(const MouseEventWithHitTestResults&); |
| void handleMouseDraggedEvent(const MouseEventWithHitTestResults&, const IntPoint&, const LayoutPoint&, Node*, const IntPoint&); |
| bool handleMouseReleaseEvent(const MouseEventWithHitTestResults&, const LayoutPoint&); |
| bool handlePasteGlobalSelection(const PlatformMouseEvent&); |
| bool handleGestureLongPress(const PlatformGestureEvent&, const HitTestResult&); |
| |
| void updateSelectionForMouseDrag(Node*, const LayoutPoint&, const IntPoint&); |
| void updateSelectionForMouseDrag(const HitTestResult&, Node*, const LayoutPoint&, const IntPoint&); |
| void sendContextMenuEvent(const MouseEventWithHitTestResults&, const LayoutPoint&); |
| void passMousePressEventToSubframe(const MouseEventWithHitTestResults&); |
| |
| void initializeSelectionState(); |
| void setMouseDownMayStartSelect(bool); |
| bool mouseDownMayStartSelect() const; |
| bool mouseDownWasSingleClickInSelection() const; |
| void notifySelectionChanged(); |
| |
| private: |
| explicit SelectionController(LocalFrame&); |
| |
| template <typename Strategy> |
| bool handleMousePressEventSingleClickAlgorithm(const MouseEventWithHitTestResults&); |
| |
| template <typename Strategy> |
| void updateSelectionForMouseDragAlgorithm(const HitTestResult&, Node*, const LayoutPoint&, const IntPoint&); |
| |
| enum class AppendTrailingWhitespace { ShouldAppend, DontAppend }; |
| void selectClosestWordFromHitTestResult(const HitTestResult&, AppendTrailingWhitespace); |
| void selectClosestMisspellingFromHitTestResult(const HitTestResult&, AppendTrailingWhitespace); |
| void selectClosestWordFromMouseEvent(const MouseEventWithHitTestResults&); |
| void selectClosestMisspellingFromMouseEvent(const MouseEventWithHitTestResults&); |
| void selectClosestWordOrLinkFromMouseEvent(const MouseEventWithHitTestResults&); |
| |
| template <typename Strategy> |
| bool updateSelectionForMouseDownDispatchingSelectStart(Node*, const VisibleSelectionTemplate<Strategy>&, TextGranularity); |
| |
| FrameSelection& selection() const; |
| |
| RawPtrWillBeMember<LocalFrame> const m_frame; |
| bool m_mouseDownMayStartSelect; |
| bool m_mouseDownWasSingleClickInSelection; |
| enum class SelectionState { HaveNotStartedSelection, PlacedCaret, ExtendedSelection }; |
| SelectionState m_selectionState; |
| }; |
| |
| } // namespace blink |
| #endif // SelectionController_h |