// 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/page/cpdf_form.h" #include "core/fpdfapi/parser/cpdf_array.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/fpdfapi/render/cpdf_rendercontext.h" #include "core/fpdfdoc/cpdf_interform.h" #include "core/fxge/cfx_renderdevice.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() {} CFX_ByteString CPDF_FormControl::GetOnStateName() const { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_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 CFX_ByteString(); } void CPDF_FormControl::SetOnStateName(const CFX_ByteString& csOn) { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_ByteString csValue = csOn; if (csValue.IsEmpty()) csValue = "Yes"; else if (csValue == "Off") csValue = "Yes"; CFX_ByteString csAS = m_pWidgetDict->GetStringFor("AS", "Off"); if (csAS != "Off") m_pWidgetDict->SetNewFor<CPDF_Name>("AS", csValue); CPDF_Dictionary* pAP = m_pWidgetDict->GetDictFor("AP"); if (!pAP) return; for (const auto& it : *pAP) { CPDF_Object* pObj1 = it.second.get(); if (!pObj1) continue; CPDF_Object* pObjDirect1 = pObj1->GetDirect(); CPDF_Dictionary* pSubDict = pObjDirect1->AsDictionary(); if (!pSubDict) continue; auto subdict_it = pSubDict->begin(); while (subdict_it != pSubDict->end()) { const CFX_ByteString& csKey2 = subdict_it->first; CPDF_Object* pObj2 = subdict_it->second.get(); ++subdict_it; if (!pObj2) continue; if (csKey2 != "Off") { pSubDict->ReplaceKey(csKey2, csValue); break; } } } } CFX_ByteString CPDF_FormControl::GetCheckedAPState() { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_ByteString csOn = GetOnStateName(); if (GetType() == CPDF_FormField::RadioButton || GetType() == CPDF_FormField::CheckBox) { if (ToArray(FPDF_GetFieldAttr(m_pField->GetDict(), "Opt"))) { int iIndex = m_pField->GetControlIndex(this); csOn.Format("%d", iIndex); } } if (csOn.IsEmpty()) csOn = "Yes"; return csOn; } CFX_WideString CPDF_FormControl::GetExportValue() const { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_ByteString csOn = GetOnStateName(); if (GetType() == CPDF_FormField::RadioButton || GetType() == CPDF_FormField::CheckBox) { if (CPDF_Array* pArray = ToArray(FPDF_GetFieldAttr(m_pField->GetDict(), "Opt"))) { 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::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_ByteString csOn = GetOnStateName(); CFX_ByteString csAS = m_pWidgetDict->GetStringFor("AS"); return csAS == csOn; } bool CPDF_FormControl::IsDefaultChecked() const { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CPDF_Object* pDV = FPDF_GetFieldAttr(m_pField->GetDict(), "DV"); if (!pDV) return false; CFX_ByteString csDV = pDV->GetString(); CFX_ByteString csOn = GetOnStateName(); return (csDV == csOn); } void CPDF_FormControl::CheckControl(bool bChecked) { ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton); CFX_ByteString csOn = GetOnStateName(); CFX_ByteString csOldAS = m_pWidgetDict->GetStringFor("AS", "Off"); CFX_ByteString csAS = "Off"; if (bChecked) csAS = csOn; if (csOldAS == csAS) return; m_pWidgetDict->SetNewFor<CPDF_Name>("AS", csAS); } void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice, CFX_Matrix* pMatrix, CPDF_Page* pPage, CPDF_Annot::AppearanceMode mode, const CPDF_RenderOptions* pOptions) { if (m_pWidgetDict->GetIntegerFor("F") & ANNOTFLAG_HIDDEN) return; CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict.Get(), mode); if (!pStream) return; CFX_FloatRect form_bbox = pStream->GetDict()->GetRectFor("BBox"); CFX_Matrix form_matrix = pStream->GetDict()->GetMatrixFor("Matrix"); form_matrix.TransformRect(form_bbox); CFX_FloatRect arect = m_pWidgetDict->GetRectFor("Rect"); CFX_Matrix matrix; matrix.MatchRect(arect, form_bbox); matrix.Concat(*pMatrix); CPDF_Form form(m_pField->GetForm()->m_pDocument.Get(), m_pField->GetForm()->m_pFormDict->GetDictFor("DR"), pStream); form.ParseContent(nullptr, nullptr, nullptr); CPDF_RenderContext context(pPage); context.AppendLayer(&form, &matrix); context.Render(pDevice, pOptions, nullptr); } CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode() { if (!m_pWidgetDict) return Invert; CFX_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 CFX_ByteString& csEntry) const { return GetMK().HasMKEntry(csEntry); } int CPDF_FormControl::GetRotation() { return GetMK().GetRotation(); } FX_ARGB CPDF_FormControl::GetColor(int& iColorType, const CFX_ByteString& csEntry) { return GetMK().GetColor(iColorType, csEntry); } float CPDF_FormControl::GetOriginalColor(int index, const CFX_ByteString& csEntry) { return GetMK().GetOriginalColor(index, csEntry); } void CPDF_FormControl::GetOriginalColor(int& iColorType, float fc[4], const CFX_ByteString& csEntry) { GetMK().GetOriginalColor(iColorType, fc, csEntry); } CFX_WideString CPDF_FormControl::GetCaption(const CFX_ByteString& csEntry) { return GetMK().GetCaption(csEntry); } CPDF_Stream* CPDF_FormControl::GetIcon(const CFX_ByteString& csEntry) { return GetMK().GetIcon(csEntry); } CPDF_IconFit CPDF_FormControl::GetIconFit() { return GetMK().GetIconFit(); } int CPDF_FormControl::GetTextPosition() { return GetMK().GetTextPosition(); } CPDF_Action CPDF_FormControl::GetAction() { if (!m_pWidgetDict) return CPDF_Action(); if (m_pWidgetDict->KeyExist("A")) return CPDF_Action(m_pWidgetDict->GetDictFor("A")); CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->GetDict(), "A"); if (!pObj) return CPDF_Action(); return CPDF_Action(pObj->GetDict()); } CPDF_AAction CPDF_FormControl::GetAdditionalAction() { if (!m_pWidgetDict) return CPDF_AAction(); if (m_pWidgetDict->KeyExist("AA")) return CPDF_AAction(m_pWidgetDict->GetDictFor("AA")); return m_pField->GetAdditionalAction(); } CPDF_DefaultAppearance CPDF_FormControl::GetDefaultAppearance() { 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(); CFX_ByteString csFontNameTag = cDA.GetFont(&fFontSize); if (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()->m_pDocument->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()->m_pDocument->LoadFont(pElement); if (pFont) return pFont; } } } return nullptr; } int CPDF_FormControl::GetControlAlignment() { 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(); }