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29 #include "core/editing/VisiblePosition.h"
30 #include "platform/geometry/IntRect.h"
31 #include "platform/geometry/LayoutRect.h"
32 #include "wtf/Noncopyable.h"
37 class GraphicsContext;
38 class PositionWithAffinity;
43 WTF_MAKE_NONCOPYABLE(CaretBase);
44 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
46 enum CaretVisibility { Visible, Hidden };
47 explicit CaretBase(CaretVisibility = Hidden);
49 void invalidateCaretRect(Node*, bool caretRectChanged = false);
50 void clearCaretRect();
51 // Creating VisiblePosition causes synchronous layout so we should use the
52 // PositionWithAffinity version if possible.
53 // A position in HTMLTextFromControlElement is a typical example.
54 bool updateCaretRect(Document*, const PositionWithAffinity& caretPosition);
55 bool updateCaretRect(Document*, const VisiblePosition& caretPosition);
56 IntRect absoluteBoundsForLocalRect(Node*, const LayoutRect&) const;
57 bool shouldRepaintCaret(const RenderView*, bool isContentEditable) const;
58 void paintCaret(Node*, GraphicsContext*, const LayoutPoint&, const LayoutRect& clipRect) const;
60 const LayoutRect& localCaretRectWithoutUpdate() const { return m_caretLocalRect; }
62 bool shouldUpdateCaretRect() const { return m_caretRectNeedsUpdate; }
63 void setCaretRectNeedsUpdate() { m_caretRectNeedsUpdate = true; }
65 void setCaretVisibility(CaretVisibility visibility) { m_caretVisibility = visibility; }
66 bool caretIsVisible() const { return m_caretVisibility == Visible; }
67 CaretVisibility caretVisibility() const { return m_caretVisibility; }
70 static RenderBlock* caretRenderer(Node*);
71 static void invalidateLocalCaretRect(Node*, const LayoutRect&);
74 LayoutRect m_caretLocalRect; // caret rect in coords local to the renderer responsible for painting the caret
75 bool m_caretRectNeedsUpdate; // true if m_caretRect (and m_absCaretBounds in FrameSelection) need to be calculated
76 CaretVisibility m_caretVisibility;
79 class DragCaretController final : public NoBaseWillBeGarbageCollected<DragCaretController>, private CaretBase {
80 WTF_MAKE_NONCOPYABLE(DragCaretController);
81 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
83 static PassOwnPtrWillBeRawPtr<DragCaretController> create();
85 RenderBlock* caretRenderer() const;
86 void paintDragCaret(LocalFrame*, GraphicsContext*, const LayoutPoint&, const LayoutRect& clipRect) const;
88 bool isContentEditable() const { return m_position.rootEditableElement(); }
89 bool isContentRichlyEditable() const;
91 bool hasCaret() const { return m_position.isNotNull(); }
92 const VisiblePosition& caretPosition() { return m_position; }
93 void setCaretPosition(const VisiblePosition&);
94 void clear() { setCaretPosition(VisiblePosition()); }
96 void nodeWillBeRemoved(Node&);
101 DragCaretController();
103 VisiblePosition m_position;