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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 CORE_FPDFDOC_CPDF_FORMFIELD_H_
#define CORE_FPDFDOC_CPDF_FORMFIELD_H_
#include <memory>
#include <utility>
#include <vector>
#include "core/fpdfdoc/cpdf_aaction.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/stl_util.h"
enum class NotificationOption { kDoNotNotify = 0, kNotify };
enum class FormFieldType : uint8_t {
kUnknown = 0,
kPushButton = 1,
kCheckBox = 2,
kRadioButton = 3,
kComboBox = 4,
kListBox = 5,
kTextField = 6,
kSignature = 7,
#ifdef PDF_ENABLE_XFA
kXFA = 8, // Generic XFA field, should use value below if possible.
kXFA_CheckBox = 9,
kXFA_ComboBox = 10,
kXFA_ImageField = 11,
kXFA_ListBox = 12,
kXFA_PushButton = 13,
kXFA_Signature = 14,
kXFA_TextField = 15
#endif // PDF_ENABLE_XFA
};
Optional<FormFieldType> IntToFormFieldType(int value);
// If values are added to FormFieldType, these will need to be updated.
#ifdef PDF_ENABLE_XFA
constexpr size_t kFormFieldTypeCount = 16;
#else // PDF_ENABLE_XFA
constexpr size_t kFormFieldTypeCount = 8;
#endif // PDF_ENABLE_XFA
constexpr FormFieldType kFormFieldTypes[kFormFieldTypeCount] = {
FormFieldType::kUnknown,
FormFieldType::kPushButton,
FormFieldType::kCheckBox,
FormFieldType::kRadioButton,
FormFieldType::kComboBox,
FormFieldType::kListBox,
FormFieldType::kTextField,
FormFieldType::kSignature,
#ifdef PDF_ENABLE_XFA
FormFieldType::kXFA,
FormFieldType::kXFA_CheckBox,
FormFieldType::kXFA_ComboBox,
FormFieldType::kXFA_ImageField,
FormFieldType::kXFA_ListBox,
FormFieldType::kXFA_PushButton,
FormFieldType::kXFA_Signature,
FormFieldType::kXFA_TextField
#endif // PDF_ENABLE_XFA
};
#define FORMFLAG_READONLY 0x01
#define FORMFLAG_REQUIRED 0x02
#define FORMFLAG_NOEXPORT 0x04
class CPDF_Dictionary;
class CPDF_Font;
class CPDF_FormControl;
class CPDF_InterForm;
class CPDF_String;
const CPDF_Object* FPDF_GetFieldAttr(const CPDF_Dictionary* pFieldDict,
const char* name);
CPDF_Object* FPDF_GetFieldAttr(CPDF_Dictionary* pFieldDict, const char* name);
WideString FPDF_GetFullName(CPDF_Dictionary* pFieldDict);
class CPDF_FormField {
public:
enum Type {
Unknown,
PushButton,
RadioButton,
CheckBox,
Text,
RichText,
File,
ListBox,
ComboBox,
Sign
};
CPDF_FormField(CPDF_InterForm* pForm, CPDF_Dictionary* pDict);
~CPDF_FormField();
WideString GetFullName() const;
Type GetType() const { return m_Type; }
uint32_t GetFlags() const { return m_Flags; }
CPDF_Dictionary* GetFieldDict() const { return m_pDict.Get(); }
bool ResetField(NotificationOption notify);
int CountControls() const {
return pdfium::CollectionSize<int>(m_ControlList);
}
CPDF_FormControl* GetControl(int index) const {
return m_ControlList[index].Get();
}
int GetControlIndex(const CPDF_FormControl* pControl) const;
FormFieldType GetFieldType() const;
CPDF_AAction GetAdditionalAction() const;
WideString GetAlternateName() const;
WideString GetMappingName() const;
uint32_t GetFieldFlags() const;
ByteString GetDefaultStyle() const;
// TODO(thestig): Figure out what to do with unused methods here.
bool IsReadOnly() const { return !!(m_Flags & FORMFLAG_READONLY); }
bool IsRequired() const { return !!(m_Flags & FORMFLAG_REQUIRED); }
bool IsNoExport() const { return !!(m_Flags & FORMFLAG_NOEXPORT); }
WideString GetValue() const;
WideString GetDefaultValue() const;
bool SetValue(const WideString& value, NotificationOption notify);
int GetMaxLen() const;
int CountSelectedItems() const;
int GetSelectedIndex(int index) const;
bool ClearSelection(NotificationOption notify);
bool IsItemSelected(int index) const;
bool SetItemSelection(int index, bool bSelected, NotificationOption notify);
bool IsItemDefaultSelected(int index) const;
int GetDefaultSelectedItem() const;
int CountOptions() const;
WideString GetOptionLabel(int index) const;
WideString GetOptionValue(int index) const;
int FindOption(WideString csOptLabel) const;
int FindOptionValue(const WideString& csOptValue) const;
bool CheckControl(int iControlIndex,
bool bChecked,
NotificationOption notify);
int GetTopVisibleIndex() const;
int CountSelectedOptions() const;
int GetSelectedOptionIndex(int index) const;
bool IsOptionSelected(int iOptIndex) const;
bool SelectOption(int iOptIndex, bool bSelected, NotificationOption notify);
float GetFontSize() const { return m_FontSize; }
CPDF_Font* GetFont() const { return m_pFont.Get(); }
CPDF_Dictionary* GetDict() const { return m_pDict.Get(); }
CPDF_InterForm* GetForm() const { return m_pForm.Get(); }
WideString GetCheckValue(bool bDefault) const;
void AddFormControl(CPDF_FormControl* pFormControl) {
m_ControlList.emplace_back(pFormControl);
}
void SetOpt(std::unique_ptr<CPDF_Object> pOpt) {
m_pDict->SetFor("Opt", std::move(pOpt));
}
private:
WideString GetValue(bool bDefault) const;
bool SetValue(const WideString& value,
bool bDefault,
NotificationOption notify);
void SyncFieldFlags();
int FindListSel(CPDF_String* str);
WideString GetOptionText(int index, int sub_index) const;
void LoadDA();
bool SetCheckValue(const WideString& value,
bool bDefault,
NotificationOption notify);
bool NotifyBeforeSelectionChange(const WideString& value);
void NotifyAfterSelectionChange();
bool NotifyBeforeValueChange(const WideString& value);
void NotifyAfterValueChange();
bool NotifyListOrComboBoxBeforeChange(const WideString& value);
void NotifyListOrComboBoxAfterChange();
CPDF_FormField::Type m_Type = Unknown;
uint32_t m_Flags;
UnownedPtr<CPDF_InterForm> const m_pForm;
UnownedPtr<CPDF_Dictionary> const m_pDict;
// Owned by InterForm parent.
std::vector<UnownedPtr<CPDF_FormControl>> m_ControlList;
float m_FontSize = 0;
UnownedPtr<CPDF_Font> m_pFont;
};
#endif // CORE_FPDFDOC_CPDF_FORMFIELD_H_
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