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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FWL_CORE_CFWL_MESSAGE_H_
#define XFA_FWL_CORE_CFWL_MESSAGE_H_
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "xfa/fwl/core/fwl_error.h"
enum class CFWL_MessageType {
None = 0,
Activate,
Close,
Cursor,
Deactivate,
DropFiles,
Key,
KillFocus,
Mouse,
MouseWheel,
Post,
SetFocus,
Size,
TaskClicked,
WindowMove,
WindowWillMove
};
enum class FWL_MouseCommand {
LeftButtonDown,
LeftButtonUp,
LeftButtonDblClk,
RightButtonDown,
RightButtonUp,
RightButtonDblClk,
MiddleButtonDown,
MiddleButtonUp,
MiddleButtonDblClk,
Move,
Enter,
Leave,
Hover
};
enum class FWL_KeyCommand { KeyDown, KeyUp, Char };
class IFWL_Widget;
class CFWL_Message {
public:
CFWL_Message();
virtual ~CFWL_Message();
virtual CFWL_Message* Clone();
virtual FWL_Error GetClassName(CFX_WideString& wsClass) const;
virtual CFWL_MessageType GetClassID() const;
uint32_t Release();
CFWL_Message* Retain();
IFWL_Widget* m_pSrcTarget;
IFWL_Widget* m_pDstTarget;
uint32_t m_dwExtend;
private:
uint32_t m_dwRefCount;
};
inline CFWL_Message::CFWL_Message()
: m_pSrcTarget(nullptr),
m_pDstTarget(nullptr),
m_dwExtend(0),
m_dwRefCount(1) {}
inline CFWL_Message::~CFWL_Message() {}
inline CFWL_Message* CFWL_Message::Clone() {
return nullptr;
}
inline FWL_Error CFWL_Message::GetClassName(CFX_WideString& wsClass) const {
return FWL_Error::Succeeded;
}
inline CFWL_MessageType CFWL_Message::GetClassID() const {
return CFWL_MessageType::None;
}
inline uint32_t CFWL_Message::Release() {
m_dwRefCount--;
uint32_t dwRefCount = m_dwRefCount;
if (!m_dwRefCount)
delete this;
return dwRefCount;
}
inline CFWL_Message* CFWL_Message::Retain() {
m_dwRefCount++;
return this;
}
#define FWL_MESSAGE_CLASS_DEF(classname, msgType, ...) \
class classname : public CFWL_Message { \
public: \
classname(); \
~classname() override; \
CFWL_Message* Clone() override; \
FWL_Error GetClassName(CFX_WideString& wsClass) const override; \
CFWL_MessageType GetClassID() const override; \
__VA_ARGS__ \
};
#define FWL_MESSAGE_FUNCTION_DEF(classname, msgType, ...) \
inline classname::classname() {} \
inline classname::~classname() {} \
inline CFWL_Message* classname::Clone() { return new classname(*this); } \
inline FWL_Error classname::GetClassName(CFX_WideString& wsClass) const { \
wsClass = L## #classname; \
return FWL_Error::Succeeded; \
} \
inline CFWL_MessageType classname::GetClassID() const { return msgType; } \
__VA_ARGS__
#define FWL_MESSAGE_DEF(classname, msgType, ...) \
FWL_MESSAGE_CLASS_DEF(classname, msgType, __VA_ARGS__) \
FWL_MESSAGE_FUNCTION_DEF(classname, msgType)
FWL_MESSAGE_DEF(CFWL_MsgActivate, CFWL_MessageType::Activate)
FWL_MESSAGE_DEF(CFWL_MsgDeactivate, CFWL_MessageType::Deactivate)
FWL_MESSAGE_DEF(CFWL_MsgMouse, CFWL_MessageType::Mouse, FX_FLOAT m_fx;
FX_FLOAT m_fy;
uint32_t m_dwFlags;
FWL_MouseCommand m_dwCmd;)
FWL_MESSAGE_DEF(CFWL_MsgMouseWheel, CFWL_MessageType::MouseWheel, FX_FLOAT m_fx;
FX_FLOAT m_fy;
FX_FLOAT m_fDeltaX;
FX_FLOAT m_fDeltaY;
uint32_t m_dwFlags;)
FWL_MESSAGE_DEF(CFWL_MsgSetFocus,
CFWL_MessageType::SetFocus,
IFWL_Widget* m_pKillFocus;)
FWL_MESSAGE_DEF(CFWL_MsgKillFocus,
CFWL_MessageType::KillFocus,
IFWL_Widget* m_pSetFocus;)
FWL_MESSAGE_DEF(CFWL_MsgKey, CFWL_MessageType::Key, uint32_t m_dwKeyCode;
uint32_t m_dwFlags;
FWL_KeyCommand m_dwCmd;)
FWL_MESSAGE_DEF(CFWL_MsgCursor, CFWL_MessageType::Cursor)
FWL_MESSAGE_DEF(CFWL_MsgSize, CFWL_MessageType::Size, int32_t m_iWidth;
int32_t m_iHeight;)
FWL_MESSAGE_DEF(CFWL_MsgWindowMove, CFWL_MessageType::WindowMove, FX_FLOAT m_fx;
FX_FLOAT m_fy;)
FWL_MESSAGE_CLASS_DEF(CFWL_MsgDropFiles,
CFWL_MessageType::DropFiles,
CFWL_MsgDropFiles(const CFWL_MsgDropFiles& copy);
FX_FLOAT m_fx;
FX_FLOAT m_fy;
CFX_WideStringArray m_files;)
FWL_MESSAGE_FUNCTION_DEF(
CFWL_MsgDropFiles,
CFWL_MessageType::DropFiles,
inline CFWL_MsgDropFiles::CFWL_MsgDropFiles(const CFWL_MsgDropFiles& copy) {
m_pDstTarget = copy.m_pDstTarget;
m_pSrcTarget = copy.m_pSrcTarget;
m_fx = copy.m_fx;
m_fy = copy.m_fy;
m_files.Append(copy.m_files);
})
FWL_MESSAGE_DEF(CFWL_MsgTaskClicked,
CFWL_MessageType::TaskClicked,
FX_FLOAT m_fx;
FX_FLOAT m_fy;)
FWL_MESSAGE_DEF(CFWL_MsgClose, CFWL_MessageType::Close)
FWL_MESSAGE_DEF(CFWL_MsgWindowWillMove, CFWL_MessageType::WindowWillMove)
#endif // XFA_FWL_CORE_CFWL_MESSAGE_H_
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