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29 #include "core/editing/EditAction.h"
30 #include "core/editing/VisibleSelection.h"
33 #include "wtf/HashSet.h"
38 class CompositeEditCommand;
42 class EditCommand : public RefCounted<EditCommand> {
44 virtual ~EditCommand();
46 void setParent(CompositeEditCommand*);
48 virtual EditAction editingAction() const;
50 const VisibleSelection& startingSelection() const { return m_startingSelection; }
51 const VisibleSelection& endingSelection() const { return m_endingSelection; }
53 virtual bool isSimpleEditCommand() const { return false; }
54 virtual bool isCompositeEditCommand() const { return false; }
55 virtual bool isEditCommandComposition() const { return false; }
56 bool isTopLevelCommand() const { return !m_parent; }
58 virtual void doApply() = 0;
61 explicit EditCommand(Document&);
62 EditCommand(Document*, const VisibleSelection&, const VisibleSelection&);
64 Document& document() const { return *m_document.get(); }
65 CompositeEditCommand* parent() const { return m_parent; }
66 void setStartingSelection(const VisibleSelection&);
67 void setEndingSelection(const VisibleSelection&);
70 RefPtr<Document> m_document;
71 VisibleSelection m_startingSelection;
72 VisibleSelection m_endingSelection;
73 CompositeEditCommand* m_parent;
76 enum ShouldAssumeContentIsAlwaysEditable {
77 AssumeContentIsAlwaysEditable,
78 DoNotAssumeContentIsAlwaysEditable,
81 class SimpleEditCommand : public EditCommand {
83 virtual void doUnapply() = 0;
84 virtual void doReapply(); // calls doApply()
87 explicit SimpleEditCommand(Document& document) : EditCommand(document) { }
90 virtual bool isSimpleEditCommand() const OVERRIDE { return true; }
93 inline SimpleEditCommand* toSimpleEditCommand(EditCommand* command)
96 ASSERT_WITH_SECURITY_IMPLICATION(command->isSimpleEditCommand());
97 return static_cast<SimpleEditCommand*>(command);
100 } // namespace WebCore
102 #endif // EditCommand_h