Creat a KeyboardEventManager class

third_party/WebKit/Source/core/input/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 Apple 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
@@ skipping 10 matching lines @@
  * 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 EventHandler_h
 #define EventHandler_h
 
 #include "core/CoreExport.h"
 #include "core/events/TextEventInputType.h"
+#include "core/input/KeyboardEventManager.h"
 #include "core/input/PointerEventManager.h"
 #include "core/input/ScrollManager.h"
 #include "core/layout/HitTestRequest.h"
 #include "core/page/DragActions.h"
 #include "core/page/EventWithHitTestResults.h"
 #include "core/style/ComputedStyleConstants.h"
 #include "platform/Cursor.h"
 #include "platform/PlatformMouseEvent.h"
 #include "platform/PlatformTouchPoint.h"
 #include "platform/Timer.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/geometry/LayoutPoint.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
-#include "public/platform/WebFocusType.h"
 #include "public/platform/WebInputEventResult.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashTraits.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class DataTransfer;
 class PaintLayer;
 class Document;
 class DragState;
 class Element;
 class Event;
 class EventTarget;
 template <typename EventType>
 class EventWithHitTestResults;
 class FloatPoint;
 class FloatQuad;
 class FrameHost;
 class HTMLFrameSetElement;
 class HitTestRequest;
 class HitTestResult;
-class KeyboardEvent;
 class LayoutObject;
 class LocalFrame;
 class Node;
 class OptionalCursor;
 class PlatformGestureEvent;
 class PlatformKeyboardEvent;
 class PlatformTouchEvent;
 class PlatformWheelEvent;
 class ScrollableArea;
 class Scrollbar;
@@ skipping 108 matching lines @@
 
     void setPointerCapture(int, EventTarget*);
     void releasePointerCapture(int, EventTarget*);
     void elementRemoved(EventTarget*);
 
     void setMouseDownMayStartAutoscroll() { m_mouseDownMayStartAutoscroll = true; }
 
     static WebInputEventResult mergeEventResult(WebInputEventResult resultA, WebInputEventResult resultB);
     static WebInputEventResult toWebInputEventResult(DispatchEventResult);
 
-    static PlatformEvent::Modifiers accessKeyModifiers();
     bool handleAccessKey(const PlatformKeyboardEvent&);
     WebInputEventResult keyEvent(const PlatformKeyboardEvent&);
     void defaultKeyboardEventHandler(KeyboardEvent*);
 
     bool handleTextInputEvent(const String& text, Event* underlyingEvent = nullptr, TextEventInputType = TextEventInputKeyboard);
     void defaultTextInputEventHandler(TextEvent*);
 
     void dragSourceEndedAt(const PlatformMouseEvent&, DragOperation);
 
     void focusDocumentView();
 
     void capsLockStateMayHaveChanged(); // Only called by FrameSelection
 
     WebInputEventResult handleTouchEvent(const PlatformTouchEvent&);
 
     bool useHandCursor(Node*, bool isOverLink);
 
     void notifyElementActivated();
 
     PassRefPtr<UserGestureToken> takeLastMouseDownGestureToken() { return m_lastMouseDownUserGestureToken.release(); }
 
     int clickCount() { return m_clickCount; }
 
     SelectionController& selectionController() const { return *m_selectionController; }
 
+    // FIXME(nzolghadr): This function is technically a private function of
+    // EventHandler class. Making it public temporary to make it possible to
+    // move some code around in the refactoring process.
+    // Performs a chaining logical scroll, within a *single* frame, starting
+    // from either a provided starting node or a default based on the focused or
+    // most recently clicked node, falling back to the frame.
+    // Returns true if the scroll was consumed.
+    // direction - The logical direction to scroll in. This will be converted to
+    //             a physical direction for each LayoutBox we try to scroll
+    //             based on that box's writing mode.
+    // granularity - The units that the  scroll delta parameter is in.
+    // startNode - Optional. If provided, start chaining from the given node.
+    //             If not, use the current focus or last clicked node.
+    bool logicalScroll(ScrollDirection, ScrollGranularity, Node* startNode = nullptr);
+
 private:
     static DragState& dragState();
 
     DataTransfer* createDraggingDataTransfer() const;
 
     WebInputEventResult handleMouseMoveOrLeaveEvent(const PlatformMouseEvent&, HitTestResult* hoveredNode = nullptr, bool onlyUpdateScrollbars = false, bool forceLeave = false);
     WebInputEventResult handleMousePressEvent(const MouseEventWithHitTestResults&);
     WebInputEventResult handleMouseFocus(const MouseEventWithHitTestResults&, InputDeviceCapabilities* sourceCapabilities);
     WebInputEventResult handleMouseDraggedEvent(const MouseEventWithHitTestResults&);
     WebInputEventResult handleMouseReleaseEvent(const MouseEventWithHitTestResults&);
@@ skipping 131 matching lines @@
     // The last mouse movement position this frame has seen in root frame coordinates.
     IntPoint m_lastKnownMousePosition;
     IntPoint m_lastKnownMouseGlobalPosition;
     IntPoint m_mouseDownPos; // In our view's coords.
     double m_mouseDownTimestamp;
     PlatformMouseEvent m_mouseDown;
     RefPtr<UserGestureToken> m_lastMouseDownUserGestureToken;
 
     PointerEventManager m_pointerEventManager;
     ScrollManager m_scrollManager;
+    KeyboardEventManager m_keyboardEventManager;
 
     double m_maxMouseMovedDuration;
 
     bool m_longTapShouldInvokeContextMenu;
 
     Timer<EventHandler> m_activeIntervalTimer;
     double m_lastShowPressTimestamp;
     Member<Element> m_lastDeferredTapElement;
 };
 
 } // namespace blink
 
 #endif // EventHandler_h