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| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef EventHandler_h | |
| 27 #define EventHandler_h | |
| 28 | |
| 29 #include "core/CoreExport.h" | |
| 30 #include "core/editing/TextGranularity.h" | |
| 31 #include "core/events/TextEventInputType.h" | |
| 32 #include "core/layout/HitTestRequest.h" | |
| 33 #include "core/style/ComputedStyleConstants.h" | |
| 34 #include "core/page/DragActions.h" | |
| 35 #include "core/page/EventWithHitTestResults.h" | |
| 36 #include "platform/Cursor.h" | |
| 37 #include "platform/PlatformMouseEvent.h" | |
| 38 #include "platform/Timer.h" | |
| 39 #include "platform/UserGestureIndicator.h" | |
| 40 #include "platform/geometry/LayoutPoint.h" | |
| 41 #include "platform/heap/Handle.h" | |
| 42 #include "platform/scroll/ScrollTypes.h" | |
| 43 #include "public/platform/WebFocusType.h" | |
| 44 #include "wtf/Forward.h" | |
| 45 #include "wtf/HashMap.h" | |
| 46 #include "wtf/HashTraits.h" | |
| 47 #include "wtf/RefPtr.h" | |
| 48 | |
| 49 namespace blink { | |
| 50 | |
| 51 class AutoscrollController; | |
| 52 class DataTransfer; | |
| 53 class DeprecatedPaintLayer; | |
| 54 class DeprecatedPaintLayerScrollableArea; | |
| 55 class Document; | |
| 56 class DragState; | |
| 57 class Element; | |
| 58 class Event; | |
| 59 class EventTarget; | |
| 60 template <typename EventType> | |
| 61 class EventWithHitTestResults; | |
| 62 class FloatPoint; | |
| 63 class FloatQuad; | |
| 64 class HTMLFrameSetElement; | |
| 65 class HitTestRequest; | |
| 66 class HitTestResult; | |
| 67 class KeyboardEvent; | |
| 68 class LocalFrame; | |
| 69 class Node; | |
| 70 class OptionalCursor; | |
| 71 class PlatformGestureEvent; | |
| 72 class PlatformKeyboardEvent; | |
| 73 class PlatformTouchEvent; | |
| 74 class PlatformWheelEvent; | |
| 75 class LayoutObject; | |
| 76 class ScrollableArea; | |
| 77 class Scrollbar; | |
| 78 class ScrollState; | |
| 79 class TextEvent; | |
| 80 class VisibleSelection; | |
| 81 class WheelEvent; | |
| 82 class Widget; | |
| 83 | |
| 84 enum AppendTrailingWhitespace { ShouldAppendTrailingWhitespace, DontAppendTraili
ngWhitespace }; | |
| 85 enum class DragInitiator; | |
| 86 | |
| 87 class CORE_EXPORT EventHandler : public NoBaseWillBeGarbageCollectedFinalized<Ev
entHandler> { | |
| 88 WTF_MAKE_NONCOPYABLE(EventHandler); | |
| 89 public: | |
| 90 explicit EventHandler(LocalFrame*); | |
| 91 ~EventHandler(); | |
| 92 DECLARE_TRACE(); | |
| 93 | |
| 94 void clear(); | |
| 95 void nodeWillBeRemoved(Node&); | |
| 96 | |
| 97 void updateSelectionForMouseDrag(); | |
| 98 | |
| 99 #if OS(WIN) | |
| 100 void startPanScrolling(LayoutObject*); | |
| 101 #endif | |
| 102 | |
| 103 void stopAutoscroll(); | |
| 104 | |
| 105 void dispatchFakeMouseMoveEventSoon(); | |
| 106 void dispatchFakeMouseMoveEventSoonInQuad(const FloatQuad&); | |
| 107 | |
| 108 HitTestResult hitTestResultAtPoint(const LayoutPoint&, | |
| 109 HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly |
HitTestRequest::Active, | |
| 110 const LayoutSize& padding = LayoutSize()); | |
| 111 | |
| 112 bool mousePressed() const { return m_mousePressed; } | |
| 113 | |
| 114 void setCapturingMouseEventsNode(PassRefPtrWillBeRawPtr<Node>); // A caller
is responsible for resetting capturing node to 0. | |
| 115 | |
| 116 bool updateDragAndDrop(const PlatformMouseEvent&, DataTransfer*); | |
| 117 void cancelDragAndDrop(const PlatformMouseEvent&, DataTransfer*); | |
| 118 bool performDragAndDrop(const PlatformMouseEvent&, DataTransfer*); | |
| 119 void updateDragStateAfterEditDragIfNeeded(Element* rootEditableElement); | |
| 120 | |
| 121 void scheduleHoverStateUpdate(); | |
| 122 void scheduleCursorUpdate(); | |
| 123 | |
| 124 // Return whether a mouse cursor update is currently pending. Used for test
ing. | |
| 125 bool cursorUpdatePending(); | |
| 126 | |
| 127 void setResizingFrameSet(HTMLFrameSetElement*); | |
| 128 | |
| 129 void resizeScrollableAreaDestroyed(); | |
| 130 | |
| 131 IntPoint lastKnownMousePosition() const; | |
| 132 | |
| 133 // Attempts to scroll the DOM tree. If that fails, scrolls the view. | |
| 134 // If the view can't be scrolled either, recursively bubble to the parent fr
ame. | |
| 135 bool bubblingScroll(ScrollDirection, ScrollGranularity, Node* startingNode =
nullptr); | |
| 136 | |
| 137 bool handleMouseMoveEvent(const PlatformMouseEvent&); | |
| 138 void handleMouseLeaveEvent(const PlatformMouseEvent&); | |
| 139 | |
| 140 bool handleMousePressEvent(const PlatformMouseEvent&); | |
| 141 bool handleMouseReleaseEvent(const PlatformMouseEvent&); | |
| 142 bool handleWheelEvent(const PlatformWheelEvent&); | |
| 143 void defaultWheelEventHandler(Node*, WheelEvent*); | |
| 144 | |
| 145 // Called on the local root frame exactly once per gesture event. | |
| 146 bool handleGestureEvent(const PlatformGestureEvent&); | |
| 147 bool handleGestureEvent(const GestureEventWithHitTestResults&); | |
| 148 | |
| 149 // Clear the old hover/active state within frames before moving the hover st
ate to the another frame | |
| 150 void updateGestureHoverActiveState(const HitTestRequest&, Element*); | |
| 151 | |
| 152 // Hit-test the provided (non-scroll) gesture event, applying touch-adjustme
nt and updating | |
| 153 // hover/active state across all frames if necessary. This should be called
at most once | |
| 154 // per gesture event, and called on the local root frame. | |
| 155 // Note: This is similar to (the less clearly named) prepareMouseEvent. | |
| 156 // FIXME: Remove readOnly param when there is only ever a single call to thi
s. | |
| 157 GestureEventWithHitTestResults targetGestureEvent(const PlatformGestureEvent
&, bool readOnly = false); | |
| 158 GestureEventWithHitTestResults hitTestResultForGestureEvent(const PlatformGe
stureEvent&, HitTestRequest::HitTestRequestType); | |
| 159 // Handle the provided non-scroll gesture event. Should be called only on th
e inner frame. | |
| 160 bool handleGestureEventInFrame(const GestureEventWithHitTestResults&); | |
| 161 | |
| 162 // Handle the provided scroll gesture event, propagating down to child frame
s as necessary. | |
| 163 bool handleGestureScrollEvent(const PlatformGestureEvent&); | |
| 164 bool handleGestureScrollEnd(const PlatformGestureEvent&); | |
| 165 bool isScrollbarHandlingGestures() const; | |
| 166 | |
| 167 bool bestClickableNodeForHitTestResult(const HitTestResult&, IntPoint& targe
tPoint, Node*& targetNode); | |
| 168 bool bestContextMenuNodeForHitTestResult(const HitTestResult&, IntPoint& tar
getPoint, Node*& targetNode); | |
| 169 // FIXME: This doesn't appear to be used outside tests anymore, what path ar
e we using now and is it tested? | |
| 170 bool bestZoomableAreaForTouchPoint(const IntPoint& touchCenter, const IntSiz
e& touchRadius, IntRect& targetArea, Node*& targetNode); | |
| 171 | |
| 172 bool sendContextMenuEvent(const PlatformMouseEvent&, Node* overrideTargetNod
e = nullptr); | |
| 173 bool sendContextMenuEventForKey(Element* overrideTargetElement = nullptr); | |
| 174 bool sendContextMenuEventForGesture(const GestureEventWithHitTestResults&); | |
| 175 | |
| 176 void setMouseDownMayStartAutoscroll() { m_mouseDownMayStartAutoscroll = true
; } | |
| 177 | |
| 178 static unsigned accessKeyModifiers(); | |
| 179 bool handleAccessKey(const PlatformKeyboardEvent&); | |
| 180 bool keyEvent(const PlatformKeyboardEvent&); | |
| 181 void defaultKeyboardEventHandler(KeyboardEvent*); | |
| 182 | |
| 183 bool handleTextInputEvent(const String& text, Event* underlyingEvent = nullp
tr, TextEventInputType = TextEventInputKeyboard); | |
| 184 void defaultTextInputEventHandler(TextEvent*); | |
| 185 | |
| 186 void dragSourceEndedAt(const PlatformMouseEvent&, DragOperation); | |
| 187 | |
| 188 void focusDocumentView(); | |
| 189 | |
| 190 void capsLockStateMayHaveChanged(); // Only called by FrameSelection | |
| 191 | |
| 192 bool handleTouchEvent(const PlatformTouchEvent&); | |
| 193 | |
| 194 bool useHandCursor(Node*, bool isOverLink); | |
| 195 | |
| 196 void notifyElementActivated(); | |
| 197 | |
| 198 PassRefPtr<UserGestureToken> takeLastMouseDownGestureToken() { return m_last
MouseDownUserGestureToken.release(); } | |
| 199 | |
| 200 int clickCount() { return m_clickCount; } | |
| 201 bool mouseDownWasSingleClickInSelection() { return m_mouseDownWasSingleClick
InSelection; } | |
| 202 | |
| 203 private: | |
| 204 static DragState& dragState(); | |
| 205 | |
| 206 DataTransfer* createDraggingDataTransfer() const; | |
| 207 | |
| 208 bool updateSelectionForMouseDownDispatchingSelectStart(Node*, const VisibleS
election&, TextGranularity); | |
| 209 void selectClosestWordFromHitTestResult(const HitTestResult&, AppendTrailing
Whitespace); | |
| 210 void selectClosestMisspellingFromHitTestResult(const HitTestResult&, AppendT
railingWhitespace); | |
| 211 void selectClosestWordFromMouseEvent(const MouseEventWithHitTestResults&); | |
| 212 void selectClosestMisspellingFromMouseEvent(const MouseEventWithHitTestResul
ts&); | |
| 213 void selectClosestWordOrLinkFromMouseEvent(const MouseEventWithHitTestResult
s&); | |
| 214 | |
| 215 bool handleMouseMoveOrLeaveEvent(const PlatformMouseEvent&, HitTestResult* h
overedNode = nullptr, bool onlyUpdateScrollbars = false, bool forceLeave = false
); | |
| 216 bool handleMousePressEvent(const MouseEventWithHitTestResults&); | |
| 217 bool handleMousePressEventSingleClick(const MouseEventWithHitTestResults&); | |
| 218 bool handleMousePressEventDoubleClick(const MouseEventWithHitTestResults&); | |
| 219 bool handleMousePressEventTripleClick(const MouseEventWithHitTestResults&); | |
| 220 bool handleMouseFocus(const MouseEventWithHitTestResults&); | |
| 221 bool handleMouseDraggedEvent(const MouseEventWithHitTestResults&); | |
| 222 bool handleMouseReleaseEvent(const MouseEventWithHitTestResults&); | |
| 223 | |
| 224 bool handlePasteGlobalSelection(const PlatformMouseEvent&); | |
| 225 | |
| 226 HitTestRequest::HitTestRequestType getHitTypeForGestureType(PlatformEvent::T
ype); | |
| 227 void applyTouchAdjustment(PlatformGestureEvent*, HitTestResult*); | |
| 228 bool handleGestureTap(const GestureEventWithHitTestResults&); | |
| 229 bool handleGestureLongPress(const GestureEventWithHitTestResults&); | |
| 230 bool handleGestureLongTap(const GestureEventWithHitTestResults&); | |
| 231 bool handleGestureScrollUpdate(const PlatformGestureEvent&); | |
| 232 bool handleGestureScrollBegin(const PlatformGestureEvent&); | |
| 233 void clearGestureScrollNodes(); | |
| 234 | |
| 235 bool shouldApplyTouchAdjustment(const PlatformGestureEvent&) const; | |
| 236 | |
| 237 OptionalCursor selectCursor(const HitTestResult&); | |
| 238 OptionalCursor selectAutoCursor(const HitTestResult&, Node*, const Cursor& i
Beam); | |
| 239 | |
| 240 void hoverTimerFired(Timer<EventHandler>*); | |
| 241 void cursorUpdateTimerFired(Timer<EventHandler>*); | |
| 242 void activeIntervalTimerFired(Timer<EventHandler>*); | |
| 243 | |
| 244 bool mouseDownMayStartSelect() const { return m_mouseDownMayStartSelect; } | |
| 245 | |
| 246 void fakeMouseMoveEventTimerFired(Timer<EventHandler>*); | |
| 247 void cancelFakeMouseMoveEvent(); | |
| 248 bool isCursorVisible() const; | |
| 249 void updateCursor(); | |
| 250 | |
| 251 ScrollableArea* associatedScrollableArea(const DeprecatedPaintLayer*) const; | |
| 252 | |
| 253 // Scrolls the elements of the DOM tree. Returns true if a node was scrolled
. | |
| 254 // False if we reached the root and couldn't scroll anything. | |
| 255 // direction - The direction to scroll in. If this is a logical direction, i
t will be | |
| 256 // converted to the physical direction based on a node's writing
mode. | |
| 257 // granularity - The units that the scroll delta parameter is in. | |
| 258 // startNode - The node to start bubbling the scroll from. If a node can't s
croll, | |
| 259 // the scroll bubbles up to the containing block. | |
| 260 // stopNode - On input, if provided and non-null, the node at which we shoul
d stop bubbling on input. | |
| 261 // On output, if provided and a node was scrolled stopNode will p
oint to that node. | |
| 262 // delta - The delta to scroll by, in the units of the granularity parameter
. (e.g. pixels, lines, pages, etc.) | |
| 263 // absolutePoint - For wheel scrolls - the location, in absolute coordinates
, where the event occured. | |
| 264 bool scroll(ScrollDirection, ScrollGranularity, Node* startNode = nullptr, N
ode** stopNode = nullptr, float delta = 1.0f, IntPoint absolutePoint = IntPoint(
)); | |
| 265 | |
| 266 void customizedScroll(const Node& startNode, ScrollState&); | |
| 267 | |
| 268 TouchAction intersectTouchAction(const TouchAction, const TouchAction); | |
| 269 TouchAction computeEffectiveTouchAction(const Node&); | |
| 270 | |
| 271 HitTestResult hitTestResultInFrame(LocalFrame*, const LayoutPoint&, HitTestR
equest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::
Active); | |
| 272 | |
| 273 void invalidateClick(); | |
| 274 | |
| 275 void updateMouseEventTargetNode(Node*, const PlatformMouseEvent&, bool); | |
| 276 | |
| 277 /* Dispatches mouseover, mouseout, mouseenter and mouseleave events to appro
priate nodes when the mouse pointer moves from one node to another. */ | |
| 278 void sendMouseEventsForNodeTransition(Node*, Node*, const PlatformMouseEvent
&); | |
| 279 | |
| 280 MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const
PlatformMouseEvent&); | |
| 281 | |
| 282 bool dispatchMouseEvent(const AtomicString& eventType, Node* target, int cli
ckCount, const PlatformMouseEvent&, bool setUnder); | |
| 283 bool dispatchDragEvent(const AtomicString& eventType, Node* target, const Pl
atformMouseEvent&, DataTransfer*); | |
| 284 | |
| 285 void clearDragDataTransfer(); | |
| 286 | |
| 287 bool handleDrag(const MouseEventWithHitTestResults&, DragInitiator); | |
| 288 bool tryStartDrag(const MouseEventWithHitTestResults&); | |
| 289 void clearDragState(); | |
| 290 | |
| 291 bool dispatchDragSrcEvent(const AtomicString& eventType, const PlatformMouse
Event&); | |
| 292 | |
| 293 bool dragHysteresisExceeded(const IntPoint&) const; | |
| 294 | |
| 295 bool passMousePressEventToSubframe(MouseEventWithHitTestResults&, LocalFrame
* subframe); | |
| 296 bool passMouseMoveEventToSubframe(MouseEventWithHitTestResults&, LocalFrame*
subframe, HitTestResult* hoveredNode = nullptr); | |
| 297 bool passMouseReleaseEventToSubframe(MouseEventWithHitTestResults&, LocalFra
me* subframe); | |
| 298 | |
| 299 bool passMousePressEventToScrollbar(MouseEventWithHitTestResults&); | |
| 300 | |
| 301 bool passWheelEventToWidget(const PlatformWheelEvent&, Widget&); | |
| 302 void defaultSpaceEventHandler(KeyboardEvent*); | |
| 303 void defaultBackspaceEventHandler(KeyboardEvent*); | |
| 304 void defaultTabEventHandler(KeyboardEvent*); | |
| 305 void defaultEscapeEventHandler(KeyboardEvent*); | |
| 306 void defaultArrowEventHandler(WebFocusType, KeyboardEvent*); | |
| 307 | |
| 308 void updateSelectionForMouseDrag(const HitTestResult&); | |
| 309 | |
| 310 void updateLastScrollbarUnderMouse(Scrollbar*, bool); | |
| 311 | |
| 312 void setFrameWasScrolledByUser(); | |
| 313 | |
| 314 bool capturesDragging() const { return m_capturesDragging; } | |
| 315 | |
| 316 bool handleGestureShowPress(); | |
| 317 | |
| 318 bool handleScrollGestureOnResizer(Node*, const PlatformGestureEvent&); | |
| 319 | |
| 320 bool passScrollGestureEventToWidget(const PlatformGestureEvent&, LayoutObjec
t*); | |
| 321 | |
| 322 AutoscrollController* autoscrollController() const; | |
| 323 bool panScrollInProgress() const; | |
| 324 void setLastKnownMousePosition(const PlatformMouseEvent&); | |
| 325 | |
| 326 bool shouldTopControlsConsumeScroll(FloatSize) const; | |
| 327 | |
| 328 // If the given element is a shadow host with tabStop = false, slide focus t
o its inner | |
| 329 // element. Returns true if the resulting focus is different from the given
element. | |
| 330 bool slideFocusOnShadowHostIfNecessary(const Element&); | |
| 331 | |
| 332 // NOTE: If adding a new field to this class please ensure that it is | |
| 333 // cleared in |EventHandler::clear()|. | |
| 334 | |
| 335 LocalFrame* const m_frame; | |
| 336 | |
| 337 bool m_mousePressed; | |
| 338 bool m_capturesDragging; | |
| 339 RefPtrWillBeMember<Node> m_mousePressNode; | |
| 340 | |
| 341 bool m_mouseDownMayStartSelect; | |
| 342 bool m_mouseDownMayStartDrag; | |
| 343 bool m_mouseDownWasSingleClickInSelection; | |
| 344 enum SelectionInitiationState { HaveNotStartedSelection, PlacedCaret, Extend
edSelection }; | |
| 345 SelectionInitiationState m_selectionInitiationState; | |
| 346 | |
| 347 LayoutPoint m_dragStartPos; | |
| 348 | |
| 349 Timer<EventHandler> m_hoverTimer; | |
| 350 | |
| 351 // TODO(rbyers): Mouse cursor update is page-wide, not per-frame. Page-wide
state | |
| 352 // should move out of EventHandler to a new PageEventHandler class. crbug.co
m/449649 | |
| 353 Timer<EventHandler> m_cursorUpdateTimer; | |
| 354 | |
| 355 bool m_mouseDownMayStartAutoscroll; | |
| 356 | |
| 357 Timer<EventHandler> m_fakeMouseMoveEventTimer; | |
| 358 | |
| 359 bool m_svgPan; | |
| 360 | |
| 361 DeprecatedPaintLayerScrollableArea* m_resizeScrollableArea; | |
| 362 | |
| 363 RefPtrWillBeMember<Node> m_capturingMouseEventsNode; | |
| 364 bool m_eventHandlerWillResetCapturingMouseEventsNode; | |
| 365 | |
| 366 RefPtrWillBeMember<Node> m_nodeUnderMouse; | |
| 367 RefPtrWillBeMember<Node> m_lastNodeUnderMouse; | |
| 368 RefPtrWillBeMember<LocalFrame> m_lastMouseMoveEventSubframe; | |
| 369 RefPtrWillBeMember<Scrollbar> m_lastScrollbarUnderMouse; | |
| 370 | |
| 371 int m_clickCount; | |
| 372 RefPtrWillBeMember<Node> m_clickNode; | |
| 373 | |
| 374 RefPtrWillBeMember<Node> m_dragTarget; | |
| 375 bool m_shouldOnlyFireDragOverEvent; | |
| 376 | |
| 377 RefPtrWillBeMember<HTMLFrameSetElement> m_frameSetBeingResized; | |
| 378 | |
| 379 LayoutSize m_offsetFromResizeCorner; // In the coords of m_resizeScrollableA
rea. | |
| 380 | |
| 381 bool m_mousePositionIsUnknown; | |
| 382 // The last mouse movement position this frame has seen in root frame coordi
nates. | |
| 383 IntPoint m_lastKnownMousePosition; | |
| 384 IntPoint m_lastKnownMouseGlobalPosition; | |
| 385 IntPoint m_mouseDownPos; // In our view's coords. | |
| 386 double m_mouseDownTimestamp; | |
| 387 PlatformMouseEvent m_mouseDown; | |
| 388 RefPtr<UserGestureToken> m_lastMouseDownUserGestureToken; | |
| 389 | |
| 390 RefPtrWillBeMember<Node> m_latchedWheelEventNode; | |
| 391 bool m_widgetIsLatched; | |
| 392 | |
| 393 RefPtrWillBeMember<Node> m_previousWheelScrolledNode; | |
| 394 | |
| 395 // The target of each active touch point indexed by the touch ID. | |
| 396 using TouchTargetMap = WillBeHeapHashMap<unsigned, RefPtrWillBeMember<EventT
arget>, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned
>>; | |
| 397 TouchTargetMap m_targetForTouchID; | |
| 398 | |
| 399 // If set, the document of the active touch sequence. Unset if no touch sequ
ence active. | |
| 400 RefPtrWillBeMember<Document> m_touchSequenceDocument; | |
| 401 RefPtr<UserGestureToken> m_touchSequenceUserGestureToken; | |
| 402 | |
| 403 bool m_touchPressed; | |
| 404 | |
| 405 RefPtrWillBeMember<Node> m_scrollGestureHandlingNode; | |
| 406 bool m_lastGestureScrollOverWidget; | |
| 407 // The most recent element to scroll natively during this scroll | |
| 408 // sequence. Null if no native element has scrolled this scroll | |
| 409 // sequence, or if the most recent element to scroll used scroll | |
| 410 // customization. | |
| 411 RefPtrWillBeMember<Node> m_previousGestureScrolledNode; | |
| 412 RefPtrWillBeMember<Scrollbar> m_scrollbarHandlingScrollGesture; | |
| 413 | |
| 414 double m_maxMouseMovedDuration; | |
| 415 | |
| 416 bool m_longTapShouldInvokeContextMenu; | |
| 417 | |
| 418 Timer<EventHandler> m_activeIntervalTimer; | |
| 419 double m_lastShowPressTimestamp; | |
| 420 RefPtrWillBeMember<Element> m_lastDeferredTapElement; | |
| 421 | |
| 422 // Only used with the ScrollCustomization runtime enabled feature. | |
| 423 WillBeHeapDeque<RefPtrWillBeMember<Element>> m_currentScrollChain; | |
| 424 // True iff some of the delta has been consumed for the current | |
| 425 // scroll sequence in this frame, or any child frames. Only used | |
| 426 // with ScrollCustomization. If some delta has been consumed, a | |
| 427 // scroll which shouldn't propagate can't cause any element to | |
| 428 // scroll other than the |m_previousGestureScrolledNode|. | |
| 429 bool m_deltaConsumedForScrollSequence; | |
| 430 }; | |
| 431 | |
| 432 } // namespace blink | |
| 433 | |
| 434 #endif // EventHandler_h | |
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Chromium Code Reviews
Issue 1153723010:
Remove page/EventHandler.* and fix core.gypi (Closed)
Base URL: svn://svn.chromium.org/blink/trunk