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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
#include "core/fpdfdoc/cpdf_formcontrol.h"
#include <algorithm>
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fpdfapi/parser/fpdf_parser_decode.h"
#include "core/fpdfdoc/cpdf_interactiveform.h"
namespace {
const char* const g_sHighlightingMode[] = {
// Must match order of HighlightingMode enum.
"N", "I", "O", "P", "T"};
} // namespace
CPDF_FormControl::CPDF_FormControl(CPDF_FormField* pField,
CPDF_Dictionary* pWidgetDict)
: m_pField(pField),
m_pWidgetDict(pWidgetDict),
m_pForm(m_pField->GetForm()) {}
CPDF_FormControl::~CPDF_FormControl() = default;
CFX_FloatRect CPDF_FormControl::GetRect() const {
return m_pWidgetDict->GetRectFor("Rect");
}
ByteString CPDF_FormControl::GetOnStateName() const {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
ByteString csOn;
CPDF_Dictionary* pAP = m_pWidgetDict->GetDictFor("AP");
if (!pAP)
return csOn;
CPDF_Dictionary* pN = pAP->GetDictFor("N");
if (!pN)
return csOn;
for (const auto& it : *pN) {
if (it.first != "Off")
return it.first;
}
return ByteString();
}
ByteString CPDF_FormControl::GetCheckedAPState() const {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
ByteString csOn = GetOnStateName();
if (ToArray(FPDF_GetFieldAttr(m_pField->GetDict(), "Opt")))
csOn = ByteString::Format("%d", m_pField->GetControlIndex(this));
if (csOn.IsEmpty())
csOn = "Yes";
return csOn;
}
WideString CPDF_FormControl::GetExportValue() const {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
ByteString csOn = GetOnStateName();
CPDF_Array* pArray = ToArray(FPDF_GetFieldAttr(m_pField->GetDict(), "Opt"));
if (pArray) {
int iIndex = m_pField->GetControlIndex(this);
csOn = pArray->GetStringAt(iIndex);
}
if (csOn.IsEmpty())
csOn = "Yes";
return PDF_DecodeText(csOn);
}
bool CPDF_FormControl::IsChecked() const {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
ByteString csOn = GetOnStateName();
ByteString csAS = m_pWidgetDict->GetStringFor("AS");
return csAS == csOn;
}
bool CPDF_FormControl::IsDefaultChecked() const {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
CPDF_Object* pDV = FPDF_GetFieldAttr(m_pField->GetDict(), "DV");
if (!pDV)
return false;
ByteString csDV = pDV->GetString();
ByteString csOn = GetOnStateName();
return (csDV == csOn);
}
void CPDF_FormControl::CheckControl(bool bChecked) {
ASSERT(GetType() == CPDF_FormField::kCheckBox ||
GetType() == CPDF_FormField::kRadioButton);
ByteString csOldAS = m_pWidgetDict->GetStringFor("AS", "Off");
ByteString csAS = "Off";
if (bChecked)
csAS = GetOnStateName();
if (csOldAS == csAS)
return;
m_pWidgetDict->SetNewFor<CPDF_Name>("AS", csAS);
}
CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode()
const {
if (!m_pWidgetDict)
return Invert;
ByteString csH = m_pWidgetDict->GetStringFor("H", "I");
for (size_t i = 0; i < FX_ArraySize(g_sHighlightingMode); ++i) {
if (csH == g_sHighlightingMode[i])
return static_cast<HighlightingMode>(i);
}
return Invert;
}
CPDF_ApSettings CPDF_FormControl::GetMK() const {
return CPDF_ApSettings(m_pWidgetDict ? m_pWidgetDict->GetDictFor("MK")
: nullptr);
}
bool CPDF_FormControl::HasMKEntry(const ByteString& csEntry) const {
return GetMK().HasMKEntry(csEntry);
}
int CPDF_FormControl::GetRotation() const {
return GetMK().GetRotation();
}
FX_ARGB CPDF_FormControl::GetColor(int& iColorType, const ByteString& csEntry) {
return GetMK().GetColor(iColorType, csEntry);
}
float CPDF_FormControl::GetOriginalColor(int index, const ByteString& csEntry) {
return GetMK().GetOriginalColor(index, csEntry);
}
void CPDF_FormControl::GetOriginalColor(int& iColorType,
float fc[4],
const ByteString& csEntry) {
GetMK().GetOriginalColor(iColorType, fc, csEntry);
}
WideString CPDF_FormControl::GetCaption(const ByteString& csEntry) const {
return GetMK().GetCaption(csEntry);
}
CPDF_Stream* CPDF_FormControl::GetIcon(const ByteString& csEntry) {
return GetMK().GetIcon(csEntry);
}
CPDF_IconFit CPDF_FormControl::GetIconFit() const {
return GetMK().GetIconFit();
}
int CPDF_FormControl::GetTextPosition() const {
return GetMK().GetTextPosition();
}
CPDF_Action CPDF_FormControl::GetAction() const {
if (!m_pWidgetDict)
return CPDF_Action(nullptr);
if (m_pWidgetDict->KeyExist("A"))
return CPDF_Action(m_pWidgetDict->GetDictFor("A"));
CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->GetDict(), "A");
return CPDF_Action(pObj ? pObj->GetDict() : nullptr);
}
CPDF_AAction CPDF_FormControl::GetAdditionalAction() const {
if (!m_pWidgetDict)
return CPDF_AAction(nullptr);
if (m_pWidgetDict->KeyExist("AA"))
return CPDF_AAction(m_pWidgetDict->GetDictFor("AA"));
return m_pField->GetAdditionalAction();
}
CPDF_DefaultAppearance CPDF_FormControl::GetDefaultAppearance() const {
if (!m_pWidgetDict)
return CPDF_DefaultAppearance();
if (m_pWidgetDict->KeyExist("DA"))
return CPDF_DefaultAppearance(m_pWidgetDict->GetStringFor("DA"));
CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->GetDict(), "DA");
if (pObj)
return CPDF_DefaultAppearance(pObj->GetString());
return m_pField->GetForm()->GetDefaultAppearance();
}
CPDF_Font* CPDF_FormControl::GetDefaultControlFont() {
float fFontSize;
CPDF_DefaultAppearance cDA = GetDefaultAppearance();
Optional<ByteString> csFontNameTag = cDA.GetFont(&fFontSize);
if (!csFontNameTag || csFontNameTag->IsEmpty())
return nullptr;
CPDF_Object* pObj = FPDF_GetFieldAttr(m_pWidgetDict.Get(), "DR");
if (CPDF_Dictionary* pDict = ToDictionary(pObj)) {
CPDF_Dictionary* pFonts = pDict->GetDictFor("Font");
if (pFonts) {
CPDF_Dictionary* pElement = pFonts->GetDictFor(*csFontNameTag);
if (pElement) {
CPDF_Font* pFont =
m_pField->GetForm()->GetDocument()->LoadFont(pElement);
if (pFont)
return pFont;
}
}
}
if (CPDF_Font* pFormFont = m_pField->GetForm()->GetFormFont(*csFontNameTag))
return pFormFont;
CPDF_Dictionary* pPageDict = m_pWidgetDict->GetDictFor("P");
pObj = FPDF_GetFieldAttr(pPageDict, "Resources");
if (CPDF_Dictionary* pDict = ToDictionary(pObj)) {
CPDF_Dictionary* pFonts = pDict->GetDictFor("Font");
if (pFonts) {
CPDF_Dictionary* pElement = pFonts->GetDictFor(*csFontNameTag);
if (pElement) {
CPDF_Font* pFont =
m_pField->GetForm()->GetDocument()->LoadFont(pElement);
if (pFont)
return pFont;
}
}
}
return nullptr;
}
int CPDF_FormControl::GetControlAlignment() const {
if (!m_pWidgetDict)
return 0;
if (m_pWidgetDict->KeyExist("Q"))
return m_pWidgetDict->GetIntegerFor("Q", 0);
CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->GetDict(), "Q");
if (pObj)
return pObj->GetInteger();
return m_pField->GetForm()->GetFormAlignment();
}
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