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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_annotlist.h"
#include <memory>
#include <utility>
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "core/fpdfapi/render/cpdf_renderoptions.h"
#include "core/fpdfdoc/cpdf_annot.h"
#include "core/fpdfdoc/cpdf_interform.h"
#include "core/fpdfdoc/cpdf_occontext.h"
#include "core/fpdfdoc/cpvt_generateap.h"
#include "core/fxge/cfx_renderdevice.h"
#include "third_party/base/ptr_util.h"
namespace {
std::unique_ptr<CPDF_Annot> CreatePopupAnnot(CPDF_Annot* pAnnot,
CPDF_Document* pDocument) {
CPDF_Dictionary* pParentDict = pAnnot->GetAnnotDict();
if (!pParentDict)
return nullptr;
// TODO(jaepark): We shouldn't strip BOM for some strings and not for others.
// See pdfium:593.
CFX_WideString sContents = pParentDict->GetUnicodeTextFor("Contents");
if (sContents.IsEmpty())
return nullptr;
auto pAnnotDict =
pdfium::MakeUnique<CPDF_Dictionary>(pDocument->GetByteStringPool());
pAnnotDict->SetNameFor("Type", "Annot");
pAnnotDict->SetNameFor("Subtype", "Popup");
pAnnotDict->SetStringFor("T", pParentDict->GetStringFor("T"));
pAnnotDict->SetStringFor("Contents", sContents.UTF8Encode());
CFX_FloatRect rect = pParentDict->GetRectFor("Rect");
rect.Normalize();
CFX_FloatRect popupRect(0, 0, 200, 200);
popupRect.Translate(rect.left, rect.bottom - popupRect.Height());
pAnnotDict->SetRectFor("Rect", popupRect);
pAnnotDict->SetIntegerFor("F", 0);
auto pPopupAnnot =
pdfium::MakeUnique<CPDF_Annot>(std::move(pAnnotDict), pDocument);
pAnnot->SetPopupAnnot(pPopupAnnot.get());
return pPopupAnnot;
}
} // namespace
CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage)
: m_pDocument(pPage->m_pDocument) {
if (!pPage->m_pFormDict)
return;
CPDF_Array* pAnnots = pPage->m_pFormDict->GetArrayFor("Annots");
if (!pAnnots)
return;
CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
bool bRegenerateAP = pAcroForm && pAcroForm->GetBooleanFor("NeedAppearances");
for (size_t i = 0; i < pAnnots->GetCount(); ++i) {
CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetDirectObjectAt(i));
if (!pDict)
continue;
const CFX_ByteString subtype = pDict->GetStringFor("Subtype");
if (subtype == "Popup") {
// Skip creating Popup annotations in the PDF document since PDFium
// provides its own Popup annotations.
continue;
}
pAnnots->ConvertToIndirectObjectAt(i, m_pDocument);
m_AnnotList.push_back(pdfium::MakeUnique<CPDF_Annot>(pDict, m_pDocument));
if (bRegenerateAP && subtype == "Widget" &&
CPDF_InterForm::IsUpdateAPEnabled()) {
FPDF_GenerateAP(m_pDocument, pDict);
}
}
size_t nAnnotListSize = m_AnnotList.size();
for (size_t i = 0; i < nAnnotListSize; ++i) {
std::unique_ptr<CPDF_Annot> pPopupAnnot(
CreatePopupAnnot(m_AnnotList[i].get(), m_pDocument));
if (pPopupAnnot)
m_AnnotList.push_back(std::move(pPopupAnnot));
}
}
CPDF_AnnotList::~CPDF_AnnotList() {}
void CPDF_AnnotList::DisplayPass(CPDF_Page* pPage,
CFX_RenderDevice* pDevice,
CPDF_RenderContext* pContext,
bool bPrinting,
CFX_Matrix* pMatrix,
bool bWidgetPass,
CPDF_RenderOptions* pOptions,
FX_RECT* clip_rect) {
for (const auto& pAnnot : m_AnnotList) {
bool bWidget = pAnnot->GetSubtype() == CPDF_Annot::Subtype::WIDGET;
if ((bWidgetPass && !bWidget) || (!bWidgetPass && bWidget))
continue;
uint32_t annot_flags = pAnnot->GetFlags();
if (annot_flags & ANNOTFLAG_HIDDEN)
continue;
if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0)
continue;
if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW))
continue;
if (pOptions) {
CPDF_OCContext* pOCContext = pOptions->m_pOCContext;
CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict();
if (pOCContext && pAnnotDict &&
!pOCContext->CheckOCGVisible(pAnnotDict->GetDictFor("OC"))) {
continue;
}
}
CFX_FloatRect annot_rect_f = pAnnot->GetRect();
CFX_Matrix matrix = *pMatrix;
if (clip_rect) {
annot_rect_f.Transform(&matrix);
FX_RECT annot_rect = annot_rect_f.GetOuterRect();
annot_rect.Intersect(*clip_rect);
if (annot_rect.IsEmpty()) {
continue;
}
}
if (pContext) {
pAnnot->DrawInContext(pPage, pContext, &matrix, CPDF_Annot::Normal);
} else if (!pAnnot->DrawAppearance(pPage, pDevice, &matrix,
CPDF_Annot::Normal, pOptions)) {
pAnnot->DrawBorder(pDevice, &matrix, pOptions);
}
}
}
void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
CFX_RenderDevice* pDevice,
CPDF_RenderContext* pContext,
bool bPrinting,
CFX_Matrix* pUser2Device,
uint32_t dwAnnotFlags,
CPDF_RenderOptions* pOptions,
FX_RECT* pClipRect) {
if (dwAnnotFlags & ANNOTFLAG_INVISIBLE) {
DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, false,
pOptions, pClipRect);
}
if (dwAnnotFlags & ANNOTFLAG_HIDDEN) {
DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, true,
pOptions, pClipRect);
}
}
void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
CPDF_RenderContext* pContext,
bool bPrinting,
CFX_Matrix* pMatrix,
bool bShowWidget,
CPDF_RenderOptions* pOptions) {
uint32_t dwAnnotFlags = bShowWidget ? ANNOTFLAG_INVISIBLE | ANNOTFLAG_HIDDEN
: ANNOTFLAG_INVISIBLE;
DisplayAnnots(pPage, nullptr, pContext, bPrinting, pMatrix, dwAnnotFlags,
pOptions, nullptr);
}
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