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// Copyright 2014 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_CFWL_WIDGET_H_
#define XFA_FWL_CFWL_WIDGET_H_
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
#include "fxjs/gc/heap.h"
#include "v8/include/cppgc/garbage-collected.h"
#include "v8/include/cppgc/macros.h"
#include "v8/include/cppgc/member.h"
#include "v8/include/cppgc/prefinalizer.h"
#include "xfa/fde/cfde_data.h"
#include "xfa/fwl/cfwl_themepart.h"
#include "xfa/fwl/cfwl_widgetmgr.h"
#include "xfa/fwl/fwl_widgetdef.h"
#include "xfa/fwl/fwl_widgethit.h"
#include "xfa/fwl/ifwl_widgetdelegate.h"
class CFWL_App;
class CFWL_AppImp;
class CFWL_Event;
class CFWL_MessageKey;
class CFWL_Widget;
class CFWL_WidgetMgr;
class IFWL_ThemeProvider;
enum class FWL_Type {
Unknown = 0,
Barcode,
Caret,
CheckBox,
ComboBox,
DateTimePicker,
Edit,
Form,
FormProxy,
ListBox,
MonthCalendar,
PictureBox,
PushButton,
ScrollBar,
SpinButton,
ToolTip
};
// NOTE: CFWL_Widget serves as its own delegate until replaced at runtime.
class CFWL_Widget : public cppgc::GarbageCollected<CFWL_Widget>,
public IFWL_WidgetDelegate {
CPPGC_USING_PRE_FINALIZER(CFWL_Widget, PreFinalize);
public:
class AdapterIface {
public:
virtual ~AdapterIface() {}
virtual CFX_Matrix GetRotateMatrix() = 0;
virtual void DisplayCaret(bool bVisible, const CFX_RectF* pRtAnchor) = 0;
virtual void GetBorderColorAndThickness(FX_ARGB* cr, float* fWidth) = 0;
};
class Properties {
public:
uint32_t m_dwStyles = FWL_WGTSTYLE_Child;
uint32_t m_dwStyleExes = 0;
uint32_t m_dwStates = 0;
};
class ScopedUpdateLock {
CPPGC_STACK_ALLOCATED(); // Allow raw/unowned pointers.
public:
explicit ScopedUpdateLock(CFWL_Widget* widget);
~ScopedUpdateLock();
private:
UnownedPtr<CFWL_Widget> const widget_; // Ok, stack-only.
};
CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
~CFWL_Widget() override;
virtual void PreFinalize();
void Trace(cppgc::Visitor* visitor) const override;
virtual FWL_Type GetClassID() const = 0;
virtual bool IsForm() const;
virtual CFX_RectF GetAutosizedWidgetRect();
virtual CFX_RectF GetWidgetRect();
virtual CFX_RectF GetClientRect();
virtual void ModifyStylesEx(uint32_t dwStylesExAdded,
uint32_t dwStylesExRemoved);
virtual void SetStates(uint32_t dwStates);
virtual void RemoveStates(uint32_t dwStates);
virtual void Update() = 0;
virtual FWL_WidgetHit HitTest(const CFX_PointF& point);
virtual void DrawWidget(CFGAS_GEGraphics* pGraphics,
const CFX_Matrix& matrix) = 0;
// IFWL_WidgetDelegate:
void OnProcessMessage(CFWL_Message* pMessage) override;
void OnProcessEvent(CFWL_Event* pEvent) override;
void OnDrawWidget(CFGAS_GEGraphics* pGraphics,
const CFX_Matrix& matrix) override;
void InflateWidgetRect(CFX_RectF& rect);
void SetWidgetRect(const CFX_RectF& rect);
bool IsVisible() const;
bool IsOverLapper() const;
bool IsPopup() const;
bool IsChild() const;
CFWL_WidgetMgr* GetWidgetMgr() const { return m_pWidgetMgr; }
CFWL_Widget* GetOuter() const { return m_pOuter; }
CFWL_Widget* GetOutmost() const;
void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved);
uint32_t GetStylesEx() const { return m_Properties.m_dwStyleExes; }
uint32_t GetStates() const { return m_Properties.m_dwStates; }
CFX_PointF TransformTo(CFWL_Widget* pWidget, const CFX_PointF& point);
CFX_Matrix GetMatrix() const;
IFWL_ThemeProvider* GetThemeProvider() const;
void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; }
IFWL_WidgetDelegate* GetDelegate() {
return m_pDelegate ? m_pDelegate.Get() : this;
}
const IFWL_WidgetDelegate* GetDelegate() const {
return m_pDelegate ? m_pDelegate.Get() : this;
}
CFWL_App* GetFWLApp() const { return m_pFWLApp.Get(); }
uint64_t GetEventKey() const { return m_nEventKey; }
void SetEventKey(uint64_t key) { m_nEventKey = key; }
AdapterIface* GetAdapterIface() const { return m_pAdapterIface; }
void SetAdapterIface(AdapterIface* pItem) { m_pAdapterIface = pItem; }
void RepaintRect(const CFX_RectF& pRect);
protected:
CFWL_Widget(CFWL_App* app, const Properties& properties, CFWL_Widget* pOuter);
bool IsEnabled() const;
bool IsLocked() const { return m_iLock > 0; }
bool HasBorder() const;
CFX_RectF GetEdgeRect() const;
float GetCXBorderSize() const;
float GetCYBorderSize() const;
CFX_RectF GetRelativeRect() const;
CFX_SizeF CalcTextSize(const WideString& wsText,
bool bMultiLine);
void CalcTextRect(const WideString& wsText,
const FDE_TextStyle& dwTTOStyles,
FDE_TextAlignment iTTOAlign,
CFX_RectF* pRect);
void SetGrab(bool bSet);
void RegisterEventTarget(CFWL_Widget* pEventSource);
void UnregisterEventTarget();
void DispatchEvent(CFWL_Event* pEvent);
void DrawBorder(CFGAS_GEGraphics* pGraphics,
CFWL_Part iPartBorder,
const CFX_Matrix& pMatrix);
Properties m_Properties;
CFX_RectF m_WidgetRect;
private:
void LockUpdate() { m_iLock++; }
void UnlockUpdate() {
if (IsLocked())
m_iLock--;
}
CFWL_Widget* GetParent() const { return m_pWidgetMgr->GetParentWidget(this); }
CFX_SizeF GetOffsetFromParent(CFWL_Widget* pParent);
void DrawBackground(CFGAS_GEGraphics* pGraphics,
CFWL_Part iPartBk,
const CFX_Matrix* pMatrix);
void NotifyDriver();
bool IsParent(CFWL_Widget* pParent);
int32_t m_iLock = 0;
uint64_t m_nEventKey = 0;
AdapterIface* m_pAdapterIface = nullptr;
cppgc::Member<CFWL_App> const m_pFWLApp;
cppgc::Member<CFWL_WidgetMgr> const m_pWidgetMgr;
cppgc::Member<IFWL_WidgetDelegate> m_pDelegate;
cppgc::Member<CFWL_Widget> const m_pOuter;
};
#endif // XFA_FWL_CFWL_WIDGET_H_