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-rw-r--r--core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp6
-rw-r--r--core/fpdfapi/page/cpdf_page.cpp4
-rw-r--r--core/fpdfapi/page/cpdf_page.h7
-rw-r--r--core/fpdfapi/parser/cpdf_document.cpp13
-rw-r--r--core/fpdfapi/parser/cpdf_document.h10
-rw-r--r--fpdfsdk/fpdf_doc_embeddertest.cpp4
-rw-r--r--fpdfsdk/fpdf_editpage.cpp3
-rw-r--r--fpdfsdk/fpdf_flatten.cpp4
-rw-r--r--fpdfsdk/fpdf_ppo.cpp2
-rw-r--r--fpdfsdk/fpdf_view.cpp5
-rw-r--r--fpdfsdk/fpdfxfa/cpdfxfa_page.cpp11
-rw-r--r--fxjs/cjs_document.cpp6
12 files changed, 43 insertions, 32 deletions
diff --git a/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp b/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp
index 1244b12331..859f5b3991 100644
--- a/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp
+++ b/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp
@@ -129,7 +129,7 @@ TEST_F(CPDF_PageContentGeneratorTest, ProcessGraphics) {
auto pDoc = pdfium::MakeUnique<CPDF_Document>(nullptr);
pDoc->CreateNewDoc();
CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(0);
- auto pTestPage = pdfium::MakeRetain<CPDF_Page>(pDoc.get(), pPageDict, false);
+ RetainPtr<CPDF_Page> pTestPage = pDoc->GetOrCreatePDFPage(pPageDict);
CPDF_PageContentGenerator generator(pTestPage.Get());
std::ostringstream buf;
TestProcessPath(&generator, &buf, pPathObj.get());
@@ -168,7 +168,7 @@ TEST_F(CPDF_PageContentGeneratorTest, ProcessStandardText) {
auto pDoc = pdfium::MakeUnique<CPDF_Document>(nullptr);
pDoc->CreateNewDoc();
CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(0);
- auto pTestPage = pdfium::MakeRetain<CPDF_Page>(pDoc.get(), pPageDict, false);
+ RetainPtr<CPDF_Page> pTestPage = pDoc->GetOrCreatePDFPage(pPageDict);
CPDF_PageContentGenerator generator(pTestPage.Get());
auto pTextObj = pdfium::MakeUnique<CPDF_TextObject>();
CPDF_Font* pFont = CPDF_Font::GetStockFont(pDoc.get(), "Times-Roman");
@@ -231,7 +231,7 @@ TEST_F(CPDF_PageContentGeneratorTest, ProcessText) {
auto pDoc = pdfium::MakeUnique<CPDF_Document>(nullptr);
pDoc->CreateNewDoc();
CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(0);
- auto pTestPage = pdfium::MakeRetain<CPDF_Page>(pDoc.get(), pPageDict, false);
+ RetainPtr<CPDF_Page> pTestPage = pDoc->GetOrCreatePDFPage(pPageDict);
CPDF_PageContentGenerator generator(pTestPage.Get());
std::ostringstream buf;
diff --git a/core/fpdfapi/page/cpdf_page.cpp b/core/fpdfapi/page/cpdf_page.cpp
index 7c0a3234c9..c5c85635b2 100644
--- a/core/fpdfapi/page/cpdf_page.cpp
+++ b/core/fpdfapi/page/cpdf_page.cpp
@@ -21,11 +21,11 @@
CPDF_Page::CPDF_Page(CPDF_Document* pDocument,
CPDF_Dictionary* pPageDict,
- bool bPageCache)
+ bool bUseRenderCache)
: CPDF_PageObjectHolder(pDocument, pPageDict),
m_PageSize(100, 100),
m_pPDFDocument(pDocument) {
- if (bPageCache)
+ if (bUseRenderCache)
m_pPageRender = pdfium::MakeUnique<CPDF_PageRenderCache>(this);
if (!pPageDict)
return;
diff --git a/core/fpdfapi/page/cpdf_page.h b/core/fpdfapi/page/cpdf_page.h
index 0bb99b73f1..b94326e47b 100644
--- a/core/fpdfapi/page/cpdf_page.h
+++ b/core/fpdfapi/page/cpdf_page.h
@@ -12,6 +12,7 @@
#include "core/fpdfapi/page/cpdf_pageobjectholder.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_system.h"
+#include "core/fxcrt/observable.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/optional.h"
@@ -22,7 +23,9 @@ class CPDF_Object;
class CPDF_PageRenderCache;
class CPDF_PageRenderContext;
-class CPDF_Page : public Retainable, public CPDF_PageObjectHolder {
+class CPDF_Page : public Retainable,
+ public Observable<CPDF_Page>,
+ public CPDF_PageObjectHolder {
public:
class View {}; // Caller implements as desired, empty here due to layering.
class Extension : public Retainable {}; // XFA page parent class, layering.
@@ -66,7 +69,7 @@ class CPDF_Page : public Retainable, public CPDF_PageObjectHolder {
private:
CPDF_Page(CPDF_Document* pDocument,
CPDF_Dictionary* pPageDict,
- bool bPageCache);
+ bool bUseRenderCache);
~CPDF_Page() override;
void StartParse();
diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp
index 7968d1b019..2e4baabe91 100644
--- a/core/fpdfapi/parser/cpdf_document.cpp
+++ b/core/fpdfapi/parser/cpdf_document.cpp
@@ -602,6 +602,19 @@ bool CPDF_Document::InsertNewPage(int iPage, CPDF_Dictionary* pPageDict) {
return true;
}
+RetainPtr<CPDF_Page> CPDF_Document::GetOrCreatePDFPage(
+ CPDF_Dictionary* pPageDict) {
+ std::pair<uint32_t, uint32_t> key = {pPageDict->GetObjNum(),
+ pPageDict->GetGenNum()};
+ if (m_PageMap[key])
+ return RetainPtr<CPDF_Page>(m_PageMap[key].Get());
+
+ auto pPage = pdfium::MakeRetain<CPDF_Page>(this, pPageDict, true);
+ pPage->ParseContent();
+ m_PageMap[key].Reset(pPage.Get());
+ return pPage;
+}
+
void CPDF_Document::DeletePage(int iPage) {
CPDF_Dictionary* pPages = GetPagesDict();
if (!pPages)
diff --git a/core/fpdfapi/parser/cpdf_document.h b/core/fpdfapi/parser/cpdf_document.h
index c2774b163a..c240e77567 100644
--- a/core/fpdfapi/parser/cpdf_document.h
+++ b/core/fpdfapi/parser/cpdf_document.h
@@ -8,6 +8,7 @@
#define CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_
#include <functional>
+#include <map>
#include <memory>
#include <set>
#include <utility>
@@ -64,6 +65,7 @@ class CPDF_Document : public CPDF_IndirectObjectHolder {
const CPDF_Dictionary* GetInfo() const { return m_pInfoDict.Get(); }
CPDF_Dictionary* GetInfo() { return m_pInfoDict.Get(); }
+ RetainPtr<CPDF_Page> GetOrCreatePDFPage(CPDF_Dictionary* pPageDict);
void DeletePage(int iPage);
int GetPageCount() const;
bool IsPageLoaded(int iPage) const;
@@ -167,7 +169,13 @@ class CPDF_Document : public CPDF_IndirectObjectHolder {
std::unique_ptr<CPDF_DocRenderData> m_pDocRender;
std::unique_ptr<JBig2_DocumentContext> m_pCodecContext;
std::unique_ptr<CPDF_LinkList> m_pLinksContext;
- std::vector<uint32_t> m_PageList; // Page number to page's dict objnum.
+
+ // Page number (index) to page's dict objnum.
+ std::vector<uint32_t> m_PageList;
+
+ // Dict {objnum, gennum} to page mapping.
+ std::map<std::pair<uint32_t, uint32_t>, CPDF_Page::ObservedPtr> m_PageMap;
+
UnownedPtr<Extension> m_pExtension;
};
diff --git a/fpdfsdk/fpdf_doc_embeddertest.cpp b/fpdfsdk/fpdf_doc_embeddertest.cpp
index c1f5e02ed6..a9e4701e1d 100644
--- a/fpdfsdk/fpdf_doc_embeddertest.cpp
+++ b/fpdfsdk/fpdf_doc_embeddertest.cpp
@@ -27,11 +27,7 @@ TEST_F(FPDFDocEmbeddertest, MultipleSamePage) {
ref.reset(FPDF_LoadPage(document(), 0));
unique_pages.insert(ref.get());
}
-#ifdef PDF_ENABLE_XFA
EXPECT_EQ(1u, unique_pages.size());
-#else // PDF_ENABLE_XFA
- EXPECT_EQ(4u, unique_pages.size());
-#endif // PDF_ENABLE_XFA
}
TEST_F(FPDFDocEmbeddertest, DestGetPageIndex) {
diff --git a/fpdfsdk/fpdf_editpage.cpp b/fpdfsdk/fpdf_editpage.cpp
index 39cf85fb95..9fb6c1fedf 100644
--- a/fpdfsdk/fpdf_editpage.cpp
+++ b/fpdfsdk/fpdf_editpage.cpp
@@ -196,8 +196,7 @@ FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document,
// Eventually, fallthru into non-XFA case once page type is consistent.
return nullptr;
#else // PDF_ENABLE_XFA
- auto pPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pPageDict, true);
- pPage->ParseContent();
+ RetainPtr<CPDF_Page> pPage = pDoc->GetOrCreatePDFPage(pPageDict);
return FPDFPageFromUnderlying(pPage.Leak()); // Caller takes ownership.
#endif // PDF_ENABLE_XFA
}
diff --git a/fpdfsdk/fpdf_flatten.cpp b/fpdfsdk/fpdf_flatten.cpp
index 720fa9ff55..2d81f1230e 100644
--- a/fpdfsdk/fpdf_flatten.cpp
+++ b/fpdfsdk/fpdf_flatten.cpp
@@ -47,9 +47,7 @@ bool IsValidRect(const CFX_FloatRect& rect, const CFX_FloatRect& rcPage) {
void GetContentsRect(CPDF_Document* pDoc,
CPDF_Dictionary* pDict,
std::vector<CFX_FloatRect>* pRectArray) {
- auto pPDFPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pDict, false);
- pPDFPage->ParseContent();
-
+ RetainPtr<CPDF_Page> pPDFPage = pDoc->GetOrCreatePDFPage(pDict);
for (const auto& pPageObject : *pPDFPage->GetPageObjectList()) {
CFX_FloatRect rc;
rc.left = pPageObject->m_Left;
diff --git a/fpdfsdk/fpdf_ppo.cpp b/fpdfsdk/fpdf_ppo.cpp
index b73042466b..4ea3334b65 100644
--- a/fpdfsdk/fpdf_ppo.cpp
+++ b/fpdfsdk/fpdf_ppo.cpp
@@ -618,7 +618,7 @@ bool CPDF_NPageToOneExporter::ExportNPagesToOne(
if (!pSrcPageDict)
return false;
- auto srcPage = pdfium::MakeRetain<CPDF_Page>(src(), pSrcPageDict, true);
+ RetainPtr<CPDF_Page> srcPage = src()->GetOrCreatePDFPage(pSrcPageDict);
NupPageSettings settings =
nupState.CalculateNewPagePosition(srcPage->GetPageSize());
AddSubPage(pSrcPageDict, settings, &objectNumberMap, &pageXObjectMap,
diff --git a/fpdfsdk/fpdf_view.cpp b/fpdfsdk/fpdf_view.cpp
index af9117579d..9af0ca4755 100644
--- a/fpdfsdk/fpdf_view.cpp
+++ b/fpdfsdk/fpdf_view.cpp
@@ -354,8 +354,7 @@ FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDF_LoadPage(FPDF_DOCUMENT document,
if (!pDict)
return nullptr;
- auto pPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pDict, true);
- pPage->ParseContent();
+ RetainPtr<CPDF_Page> pPage = pDoc->GetOrCreatePDFPage(pDict);
return FPDFPageFromUnderlying(pPage.Leak());
#endif // PDF_ENABLE_XFA
}
@@ -962,7 +961,7 @@ FPDF_EXPORT int FPDF_CALLCONV FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document,
if (!pDict)
return false;
- auto page = pdfium::MakeRetain<CPDF_Page>(pDoc, pDict, true);
+ RetainPtr<CPDF_Page> page = pDoc->GetOrCreatePDFPage(pDict);
*width = page->GetPageWidth();
*height = page->GetPageHeight();
return true;
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
index 4d7e3bc222..f4120896a8 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
@@ -34,10 +34,9 @@ bool CPDFXFA_Page::LoadPDFPage() {
if (!pDict)
return false;
- if (!m_pPDFPage || m_pPDFPage->GetFormDict() != pDict) {
- m_pPDFPage = pdfium::MakeRetain<CPDF_Page>(pPDFDoc, pDict, true);
- m_pPDFPage->ParseContent();
- }
+ if (!m_pPDFPage || m_pPDFPage->GetFormDict() != pDict)
+ m_pPDFPage = pPDFDoc->GetOrCreatePDFPage(pDict);
+
return true;
}
@@ -80,9 +79,7 @@ bool CPDFXFA_Page::LoadPDFPage(CPDF_Dictionary* pageDict) {
if (!m_pContext || m_iPageIndex < 0 || !pageDict)
return false;
- m_pPDFPage =
- pdfium::MakeRetain<CPDF_Page>(m_pContext->GetPDFDoc(), pageDict, true);
- m_pPDFPage->ParseContent();
+ m_pPDFPage = m_pContext->GetPDFDoc()->GetOrCreatePDFPage(pageDict);
return true;
}
diff --git a/fxjs/cjs_document.cpp b/fxjs/cjs_document.cpp
index 66577062a6..3a4ca2763f 100644
--- a/fxjs/cjs_document.cpp
+++ b/fxjs/cjs_document.cpp
@@ -1256,8 +1256,7 @@ CJS_Return CJS_Document::getPageNthWord(
if (!pPageDict)
return CJS_Return(false);
- auto page = pdfium::MakeRetain<CPDF_Page>(pDocument, pPageDict, true);
- page->ParseContent();
+ RetainPtr<CPDF_Page> page = pDocument->GetOrCreatePDFPage(pPageDict);
int nWords = 0;
WideString swRet;
@@ -1305,8 +1304,7 @@ CJS_Return CJS_Document::getPageNumWords(
if (!pPageDict)
return CJS_Return(false);
- auto page = pdfium::MakeRetain<CPDF_Page>(pDocument, pPageDict, true);
- page->ParseContent();
+ RetainPtr<CPDF_Page> page = pDocument->GetOrCreatePDFPage(pPageDict);
int nWords = 0;
for (auto& pPageObj : *page->GetPageObjectList()) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 16:43:00 +0000