Index: content/browser/renderer_host/input/touch_selection_controller.h |
diff --git a/content/browser/renderer_host/input/touch_selection_controller.h b/content/browser/renderer_host/input/touch_selection_controller.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..45618a2868dc16d6df4bb0f1955437d9af4944df |
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+++ b/content/browser/renderer_host/input/touch_selection_controller.h |
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+// 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 CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_H_ |
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_H_ |
+ |
+#include "content/browser/renderer_host/input/selection_event_type.h" |
+#include "content/browser/renderer_host/input/touch_handle.h" |
+#include "content/common/content_export.h" |
+#include "ui/gfx/geometry/point_f.h" |
+#include "ui/gfx/geometry/rect_f.h" |
+ |
+namespace blink { |
+class WebInputEvent; |
+} |
+ |
+namespace ui { |
+class MotionEvent; |
+} |
+ |
+namespace content { |
+ |
+// Interface through which |TouchSelectionController| issues selection-related |
+// commands, notifications and requests. |
+class CONTENT_EXPORT TouchSelectionControllerClient { |
+ public: |
+ virtual ~TouchSelectionControllerClient() {} |
+ |
+ virtual void SetNeedsAnimate() = 0; |
+ virtual void MoveCaret(const gfx::PointF& position) = 0; |
+ virtual void SelectBetweenCoordinates(const gfx::PointF& start, |
+ const gfx::PointF& end) = 0; |
+ virtual void OnSelectionEvent(SelectionEventType event, |
+ const gfx::PointF& position) = 0; |
+ virtual scoped_ptr<TouchHandleDrawable> CreateDrawable() = 0; |
+}; |
+ |
+// Controller for manipulating text selection via touch input. |
+class CONTENT_EXPORT TouchSelectionController : public TouchHandleClient { |
+ public: |
+ explicit TouchSelectionController(TouchSelectionControllerClient* client); |
+ virtual ~TouchSelectionController(); |
+ |
+ // To be called when the selection bounds have chnaged. |
cjhopman
2014/07/09 22:29:12
s/chnaged/changed
jdduke (slow)
2014/07/10 02:08:39
Done.
|
+ // Note that such updates will trigger handle updates only if preceded |
+ // by an appropriate call to allow automatic showing. |
+ void OnSelectionBoundsChanged(const gfx::RectF& start_rect, |
+ TouchHandleOrientation start_orientation, |
+ bool start_visible, |
+ const gfx::RectF& end_rect, |
+ TouchHandleOrientation end_orientation, |
+ bool end_visible); |
+ |
+ // 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 ui::MotionEvent& event); |
+ |
+ // Allow the insertion or selection handles to be shown from the data |
+ // in |OnSelectionBoundsChanged()|. |
+ void AllowAutomaticInsertionShowing(); |
+ void AllowAutomaticSelectionShowing(); |
+ |
+ // Hide the handles and suppress bounds updates until the next explicit |
+ // showing allowance. |
+ void HideAndDisallowAutomaticShowing(); |
+ |
+ // To be called when the editability of the focused region changes. |
+ void OnSelectionEditable(bool editable); |
+ |
+ // 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); |
+ |
+ private: |
+ // TouchHandleClient implementation. |
+ virtual void OnHandleDragBegin(const TouchHandle& handle) OVERRIDE; |
+ virtual void OnHandleDragUpdate(const TouchHandle& handle, |
+ const gfx::PointF& new_position) OVERRIDE; |
+ virtual void OnHandleDragEnd(const TouchHandle& handle) OVERRIDE; |
+ virtual void OnHandleTapped(const TouchHandle& handle) OVERRIDE; |
+ virtual void SetNeedsAnimate() OVERRIDE; |
+ virtual scoped_ptr<TouchHandleDrawable> CreateDrawable() OVERRIDE; |
+ |
+ void OnInsertionChanged(); |
+ void OnSelectionChanged(); |
+ |
+ void ActivateInsertion(); |
+ void DeactivateInsertion(); |
+ void ActivateSelection(); |
+ void DeactivateSelection(); |
+ void ResetCachedValues(); |
+ |
+ gfx::PointF GetStartPosition() const; |
+ gfx::PointF GetEndPosition() const; |
+ float GetStartLineHeight() const; |
+ float GetEndLineHeight() const; |
+ |
+ TouchSelectionControllerClient* const client_; |
+ |
+ gfx::RectF start_rect_; |
+ TouchHandleOrientation start_orientation_; |
+ bool start_visible_; |
+ gfx::RectF end_rect_; |
+ TouchHandleOrientation end_orientation_; |
+ bool end_visible_; |
+ |
+ scoped_ptr<TouchHandle> insertion_handle_; |
+ bool is_insertion_active_; |
+ bool allow_automatic_insertion_activation_; |
+ |
+ scoped_ptr<TouchHandle> start_selection_handle_; |
+ scoped_ptr<TouchHandle> end_selection_handle_; |
+ gfx::PointF fixed_handle_position_; |
+ bool is_selection_active_; |
+ bool allow_automatic_selection_activation_; |
+ |
+ bool selection_editable_; |
+ bool selection_editable_for_last_update_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(TouchSelectionController); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_H_ |