Blink handle selection handle visibility

ui/touch_selection/touch_selection_controller.h

 // Copyright 2014 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 UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_
 #define UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "ui/gfx/geometry/point_f.h"
@@ skipping 67 matching lines @@
 
   // To be called when the viewport rect has been changed. This is used for
   // setting the state of the handles.
   void OnViewportChanged(const gfx::RectF viewport_rect);
 
   // Allows touch-dragging of the handle.
   // Returns true iff the event was consumed, in which case the caller should
   // cease further handling of the event.
   bool WillHandleTouchEvent(const MotionEvent& event);
 
-  // To be called before forwarding a tap event. This allows automatically
-  // showing the insertion handle from subsequent bounds changes.
+  // To be called before forwarding a tap event.
   // |tap_count| is tap index in a repeated sequence, i.e., 1 for the first
   // tap, 2 for the second tap, etc...
-  bool WillHandleTapEvent(const gfx::PointF& location, int tap_count);
+  void WillHandleTapEvent(const gfx::PointF& location, int tap_count);
 
-  // To be called before forwarding a longpress event. This allows automatically
-  // showing the selection or insertion handles from subsequent bounds changes.
-  bool WillHandleLongPressEvent(base::TimeTicks event_time,
+  // To be called before forwarding a longpress event.
+  void WillHandleLongPressEvent(base::TimeTicks event_time,
                                 const gfx::PointF& location);
 
   // To be called before forwarding a gesture scroll begin event to prevent
   // long-press drag.
   void OnScrollBeginEvent();
 
-  // Allow showing the selection handles from the most recent selection bounds
-  // update (if valid), or a future valid bounds update.
-  void AllowShowingFromCurrentSelection();
-
   // Hide the handles and suppress bounds updates until the next explicit
   // showing allowance.
   void HideAndDisallowShowingAutomatically();
 
   // Override the handle visibility according to |hidden|.
   void SetTemporarilyHidden(bool hidden);
 
-  // To be called when the editability of the focused region changes.
-  void OnSelectionEditable(bool editable);
-
-  // To be called when the contents of the focused region changes.
-  void OnSelectionEmpty(bool empty);
-
   // Ticks an active animation, as requested to the client by |SetNeedsAnimate|.
   // Returns true if an animation is active and requires further ticking.
   bool Animate(base::TimeTicks animate_time);
 
   // Returns the rect between the two active selection bounds. If just one of
   // the bounds is visible, the rect is simply the (one-dimensional) rect of
   // that bound. If no selection is active, an empty rect will be returned.
   gfx::RectF GetRectBetweenBounds() const;
 
   // Returns the visible rect of specified touch handle. For an active insertion
   // these values will be identical.
   gfx::RectF GetStartHandleRect() const;
   gfx::RectF GetEndHandleRect() const;
 
   // Returns the focal point of the start and end bounds, as defined by
   // their bottom coordinate.
   const gfx::PointF& GetStartPosition() const;
   const gfx::PointF& GetEndPosition() const;
 
   const gfx::SelectionBound& start() const { return start_; }
   const gfx::SelectionBound& end() const { return end_; }
 
   ActiveStatus active_status() const { return active_status_; }
 
-  bool insertion_active_or_requested() const {
-    return activate_insertion_automatically_;
-  }
-
  private:
   friend class TouchSelectionControllerTestApi;
 
   enum InputEventType { TAP, REPEATED_TAP, LONG_PRESS, INPUT_EVENT_TYPE_NONE };
 
   bool WillHandleTouchEventImpl(const MotionEvent& event);
 
   // TouchHandleClient implementation.
   void OnDragBegin(const TouchSelectionDraggable& draggable,
                    const gfx::PointF& drag_position) override;
   void OnDragUpdate(const TouchSelectionDraggable& draggable,
                     const gfx::PointF& drag_position) override;
   void OnDragEnd(const TouchSelectionDraggable& draggable) override;
   bool IsWithinTapSlop(const gfx::Vector2dF& delta) const override;
   void OnHandleTapped(const TouchHandle& handle) override;
   void SetNeedsAnimate() override;
   std::unique_ptr<TouchHandleDrawable> CreateDrawable() override;
   base::TimeDelta GetMaxTapDuration() const override;
   bool IsAdaptiveHandleOrientationEnabled() const override;
 
   // LongPressDragSelectorClient implementation.
   void OnLongPressDragActiveStateChanged() override;
   gfx::PointF GetSelectionStart() const override;
   gfx::PointF GetSelectionEnd() const override;
 
-  void ShowInsertionHandleAutomatically();
-  void ShowSelectionHandlesAutomatically();
-  bool WillHandleTapOrLongPress(const gfx::PointF& location);
-
   void OnInsertionChanged();
   void OnSelectionChanged();
 
   // Returns true if insertion mode was newly (re)activated.
   bool ActivateInsertionIfNecessary();
   void DeactivateInsertion();
   // Returns true if selection mode was newly (re)activated.
   bool ActivateSelectionIfNecessary();
   void DeactivateSelection();
-  void ForceNextUpdateIfInactive();
   void UpdateHandleLayoutIfNecessary();
 
   bool WillHandleTouchEventForLongPressDrag(const MotionEvent& event);
   void SetTemporarilyHiddenForLongPressDrag(bool hidden);
   void RefreshHandleVisibility();
 
   gfx::Vector2dF GetStartLineOffset() const;
   gfx::Vector2dF GetEndLineOffset() const;
   bool GetStartVisible() const;
   bool GetEndVisible() const;
   TouchHandle::AnimationStyle GetAnimationStyle(bool was_active) const;
 
   void LogSelectionEnd();
 
   TouchSelectionControllerClient* const client_;
   const Config config_;
 
-  // Whether to force an update on the next selection event even if the
-  // cached selection matches the new selection.
-  bool force_next_update_;
-
+  // TODO(amaralp): This is not necessary. Remove it.
   InputEventType response_pending_input_event_;
 
   gfx::SelectionBound start_;
   gfx::SelectionBound end_;
   TouchHandleOrientation start_orientation_;
   TouchHandleOrientation end_orientation_;
 
   ActiveStatus active_status_;
 
   std::unique_ptr<TouchHandle> insertion_handle_;
-  bool activate_insertion_automatically_;
 
   std::unique_ptr<TouchHandle> start_selection_handle_;
   std::unique_ptr<TouchHandle> end_selection_handle_;
-  bool activate_selection_automatically_;
-
-  bool selection_empty_;
-  bool selection_editable_;
 
   bool temporarily_hidden_;
 
   // Whether to use the start bound (if false, the end bound) for computing the
   // appropriate text line offset when performing a selection drag. This helps
   // ensure that the initial selection induced by the drag doesn't "jump"
   // between lines.
   bool anchor_drag_to_selection_start_;
 
   // Longpress drag allows direct manipulation of longpress-initiated selection.
   LongPressDragSelector longpress_drag_selector_;
 
   gfx::RectF viewport_rect_;
 
   base::TimeTicks selection_start_time_;
   // Whether a selection handle was dragged during the current 'selection
   // session' - i.e. since the current selection has been activated.
   bool selection_handle_dragged_;
 
   // Determines whether the entire touch sequence should be consumed or not.
   bool consume_touch_sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchSelectionController);
 };
 
 }  // namespace ui
 
 #endif  // UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_