| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GestureManager_h |
| #define GestureManager_h |
| |
| #include "base/macros.h" |
| #include "core/CoreExport.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/layout/HitTestRequest.h" |
| #include "core/page/EventWithHitTestResults.h" |
| #include "platform/wtf/Optional.h" |
| #include "platform/wtf/Time.h" |
| #include "public/platform/WebInputEventResult.h" |
| |
| namespace blink { |
| |
| class ScrollManager; |
| class SelectionController; |
| class PointerEventManager; |
| class MouseEventManager; |
| |
| // This class takes care of gestures and delegating the action based on the |
| // gesture to the responsible class. |
| class CORE_EXPORT GestureManager |
| : public GarbageCollectedFinalized<GestureManager> { |
| public: |
| GestureManager(LocalFrame&, |
| ScrollManager&, |
| MouseEventManager&, |
| PointerEventManager&, |
| SelectionController&); |
| void Trace(blink::Visitor*); |
| |
| void Clear(); |
| |
| HitTestRequest::HitTestRequestType GetHitTypeForGestureType( |
| WebInputEvent::Type); |
| WebInputEventResult HandleGestureEventInFrame( |
| const GestureEventWithHitTestResults&); |
| |
| // TODO(nzolghadr): This can probably be hidden and the related logic |
| // be moved to this class (see crrev.com/112023010). Since that might cause |
| // regression it's better to move that logic in another change. |
| WTF::Optional<WTF::TimeTicks> GetLastShowPressTimestamp() const; |
| |
| private: |
| WebInputEventResult HandleGestureShowPress(); |
| WebInputEventResult HandleGestureTapDown( |
| const GestureEventWithHitTestResults&); |
| WebInputEventResult HandleGestureTap(const GestureEventWithHitTestResults&); |
| WebInputEventResult HandleGestureLongPress( |
| const GestureEventWithHitTestResults&); |
| WebInputEventResult HandleGestureLongTap( |
| const GestureEventWithHitTestResults&); |
| WebInputEventResult HandleGestureTwoFingerTap( |
| const GestureEventWithHitTestResults&); |
| |
| WebInputEventResult SendContextMenuEventForGesture( |
| const GestureEventWithHitTestResults&); |
| |
| // NOTE: If adding a new field to this class please ensure that it is |
| // cleared if needed in |GestureManager::clear()|. |
| |
| const Member<LocalFrame> frame_; |
| |
| Member<ScrollManager> scroll_manager_; |
| Member<MouseEventManager> mouse_event_manager_; |
| Member<PointerEventManager> pointer_event_manager_; |
| |
| // Set on GestureTapDown if the |pointerdown| event corresponding to the |
| // triggering |touchstart| event was canceled. This suppresses mouse event |
| // firing for the current gesture sequence (i.e. until next GestureTapDown). |
| bool suppress_mouse_events_from_gestures_; |
| |
| bool long_tap_should_invoke_context_menu_; |
| |
| const Member<SelectionController> selection_controller_; |
| |
| WTF::Optional<WTF::TimeTicks> last_show_press_timestamp_; |
| DISALLOW_COPY_AND_ASSIGN(GestureManager); |
| }; |
| |
| } // namespace blink |
| |
| #endif // GestureManager_h |