flutter_flutter/engine/core/editing/InputMethodController.h
Eric Seidel e0fd75b5ab Make absolute and sort all Sky headers
This caused us to lose our gn check certification. :(

Turns out gn check was just ignoring all the header
paths it didn't understand and so gn check passing
for sky wasn't meaning much.  I tried to straighten
out some of the mess in this CL, but its going to take
several more rounds of massaging before gn check
passes again.  On the bright side (almost) all of
our headers are absolute now.  Turns out my script
(attached to the bug) didn't notice ../ includes
but I'll fix that in the next patch.

R=abarth@chromium.org
BUG=435361

Review URL: https://codereview.chromium.org/746023002
2014-11-20 17:42:05 -08:00

119 lines
4.8 KiB
C++

/*
* Copyright (C) 2006, 2007, 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 InputMethodController_h
#define InputMethodController_h
#include "sky/engine/core/editing/CompositionUnderline.h"
#include "sky/engine/core/editing/PlainTextRange.h"
#include "sky/engine/wtf/Vector.h"
namespace blink {
class Editor;
class EditorClient;
class LocalFrame;
class Range;
class Text;
class InputMethodController {
WTF_MAKE_NONCOPYABLE(InputMethodController);
public:
enum ConfirmCompositionBehavior {
DoNotKeepSelection,
KeepSelection,
};
static PassOwnPtr<InputMethodController> create(LocalFrame&);
~InputMethodController();
// international text input composition
bool hasComposition() const;
void setComposition(const String&, const Vector<CompositionUnderline>&, unsigned selectionStart, unsigned selectionEnd);
void setCompositionFromExistingText(const Vector<CompositionUnderline>&, unsigned compositionStart, unsigned compositionEnd);
// Inserts the text that is being composed as a regular text and returns true
// if composition exists.
bool confirmComposition();
// Inserts the given text string in the place of the existing composition
// and returns true.
bool confirmComposition(const String& text);
// Inserts the text that is being composed or specified non-empty text and
// returns true.
bool confirmCompositionOrInsertText(const String& text, ConfirmCompositionBehavior);
void confirmCompositionAndResetState();
// Deletes the existing composition text.
void cancelComposition();
void cancelCompositionIfSelectionIsInvalid();
PassRefPtr<Range> compositionRange() const;
// getting international text input composition state (for use by InlineTextBox)
Text* compositionNode() const { return m_compositionNode.get(); }
unsigned compositionStart() const { return m_compositionStart; }
unsigned compositionEnd() const { return m_compositionEnd; }
bool compositionUsesCustomUnderlines() const { return !m_customCompositionUnderlines.isEmpty(); }
const Vector<CompositionUnderline>& customCompositionUnderlines() const { return m_customCompositionUnderlines; }
void clear();
PlainTextRange getSelectionOffsets() const;
// Returns true if setting selection to specified offsets, otherwise false.
bool setEditableSelectionOffsets(const PlainTextRange&);
void extendSelectionAndDelete(int before, int after);
private:
class SelectionOffsetsScope {
WTF_MAKE_NONCOPYABLE(SelectionOffsetsScope);
public:
SelectionOffsetsScope(InputMethodController*);
~SelectionOffsetsScope();
private:
InputMethodController* m_inputMethodController;
const PlainTextRange m_offsets;
};
friend class SelectionOffsetsScope;
LocalFrame& m_frame;
RefPtr<Text> m_compositionNode;
// We don't use PlainTextRange which is immutable, for composition range.
unsigned m_compositionStart;
unsigned m_compositionEnd;
// startOffset and endOffset of CompositionUnderline are based on
// m_compositionNode.
Vector<CompositionUnderline> m_customCompositionUnderlines;
explicit InputMethodController(LocalFrame&);
Editor& editor() const;
bool insertTextForConfirmedComposition(const String& text);
void selectComposition() const;
enum FinishCompositionMode { ConfirmComposition, CancelComposition };
// Returns true if composition exists.
bool finishComposition(const String&, FinishCompositionMode);
bool setSelectionOffsets(const PlainTextRange&);
};
} // namespace blink
#endif // InputMethodController_h