| /* |
| * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_COMMANDS_EDIT_COMMAND_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_COMMANDS_EDIT_COMMAND_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/events/input_event.h" |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| |
| namespace blink { |
| |
| class CompositeEditCommand; |
| class Document; |
| class EditingState; |
| |
| class CORE_EXPORT EditCommand : public GarbageCollectedFinalized<EditCommand> { |
| public: |
| virtual ~EditCommand(); |
| |
| virtual void SetParent(CompositeEditCommand*); |
| |
| virtual InputEvent::InputType GetInputType() const; |
| |
| virtual bool IsSimpleEditCommand() const { return false; } |
| virtual bool IsCompositeEditCommand() const { return false; } |
| bool IsTopLevelCommand() const { return !parent_; } |
| |
| // The |EditingState*| argument must not be nullptr. |
| virtual void DoApply(EditingState*) = 0; |
| |
| // |TypingCommand| will return the text of the last |commands_|. |
| virtual String TextDataForInputEvent() const; |
| |
| virtual void Trace(blink::Visitor*); |
| bool SelectionIsDirectional() const { return selection_is_directional_; } |
| void SetSelectionIsDirectional(bool is_directional) { |
| selection_is_directional_ = is_directional; |
| } |
| |
| protected: |
| explicit EditCommand(Document&); |
| |
| Document& GetDocument() const { return *document_.Get(); } |
| CompositeEditCommand* Parent() const { return parent_; } |
| |
| static bool IsRenderedCharacter(const Position&); |
| |
| private: |
| Member<Document> document_; |
| Member<CompositeEditCommand> parent_; |
| bool selection_is_directional_ = false; |
| }; |
| |
| enum ShouldAssumeContentIsAlwaysEditable { |
| kAssumeContentIsAlwaysEditable, |
| kDoNotAssumeContentIsAlwaysEditable, |
| }; |
| |
| class CORE_EXPORT SimpleEditCommand : public EditCommand { |
| public: |
| virtual void DoUnapply() = 0; |
| virtual void DoReapply(); // calls doApply() |
| |
| protected: |
| explicit SimpleEditCommand(Document& document) : EditCommand(document) {} |
| |
| private: |
| bool IsSimpleEditCommand() const final { return true; } |
| }; |
| |
| DEFINE_TYPE_CASTS(SimpleEditCommand, |
| EditCommand, |
| command, |
| command->IsSimpleEditCommand(), |
| command.IsSimpleEditCommand()); |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_COMMANDS_EDIT_COMMAND_H_ |