diff options
| -rw-r--r-- | fpdfsdk/fpdfview.cpp | 17 | ||||
| -rw-r--r-- | fpdfsdk/fsdk_mgr.cpp | 16 | ||||
| -rw-r--r-- | fpdfsdk/include/fsdk_mgr.h | 5 | ||||
| -rw-r--r-- | fpdfsdk/javascript/Field.cpp | 11 |
4 files changed, 37 insertions, 12 deletions
diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp index dee71ac9e2..1c0af1dc10 100644 --- a/fpdfsdk/fpdfview.cpp +++ b/fpdfsdk/fpdfview.cpp @@ -673,9 +673,20 @@ DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page) { #else // PDF_ENABLE_XFA CPDFSDK_PageView* pPageView = static_cast<CPDFSDK_PageView*>(pPage->GetView()); - if (pPageView && pPageView->IsLocked()) { - pPageView->TakeOverPage(); - return; + if (pPageView) { + if (pPageView->IsLocked()) { + pPageView->TakePageOwnership(); + return; + } + + bool owned = pPageView->OwnsPage(); + // This will delete the |pPageView| object. We must cleanup the PageView + // first because it will attempt to reset the View on the |pPage| during + // destruction. + pPageView->GetSDKDocument()->RemovePageView(pPage); + // If the page was owned then the pageview will have deleted the page. + if (owned) + return; } delete pPage; #endif // PDF_ENABLE_XFA diff --git a/fpdfsdk/fsdk_mgr.cpp b/fpdfsdk/fsdk_mgr.cpp index 0fc61dac7a..eb3f51e97c 100644 --- a/fpdfsdk/fsdk_mgr.cpp +++ b/fpdfsdk/fsdk_mgr.cpp @@ -299,7 +299,7 @@ CPDFSDK_PageView* CPDFSDK_Document::GetPageView(int nIndex) { return nullptr; auto it = m_pageMap.find(pTempPage); - return it->second; + return it != m_pageMap.end() ? it->second : nullptr; } void CPDFSDK_Document::ProcJavascriptFun() { @@ -482,7 +482,7 @@ CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc, m_pSDKDoc(pSDKDoc), m_CaptureWidget(nullptr), #ifndef PDF_ENABLE_XFA - m_bTakeOverPage(FALSE), + m_bOwnsPage(false), #endif // PDF_ENABLE_XFA m_bEnterWidget(FALSE), m_bExitWidget(FALSE), @@ -505,6 +505,13 @@ CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc, } CPDFSDK_PageView::~CPDFSDK_PageView() { +#ifndef PDF_ENABLE_XFA + // The call to |ReleaseAnnot| can cause the page pointed to by |m_page| to + // be freed, which will cause issues if we try to cleanup the pageview pointer + // in |m_page|. So, reset the pageview pointer before doing anything else. + m_page->SetView(nullptr); +#endif // PDF_ENABLE_XFA + CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv(); CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr(); for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) @@ -512,11 +519,10 @@ CPDFSDK_PageView::~CPDFSDK_PageView() { m_fxAnnotArray.clear(); m_pAnnotList.reset(); + #ifndef PDF_ENABLE_XFA - m_page->SetView(nullptr); - if (m_bTakeOverPage) { + if (m_bOwnsPage) delete m_page; - } #endif // PDF_ENABLE_XFA } diff --git a/fpdfsdk/include/fsdk_mgr.h b/fpdfsdk/include/fsdk_mgr.h index 924cd444e0..f37e64fe41 100644 --- a/fpdfsdk/include/fsdk_mgr.h +++ b/fpdfsdk/include/fsdk_mgr.h @@ -605,7 +605,8 @@ class CPDFSDK_PageView final : public CPDF_Page::View { void SetLock(FX_BOOL bLocked) { m_bLocked = bLocked; } FX_BOOL IsLocked() { return m_bLocked; } #ifndef PDF_ENABLE_XFA - void TakeOverPage() { m_bTakeOverPage = TRUE; } + bool OwnsPage() const { return m_bOwnsPage; } + void TakePageOwnership() { m_bOwnsPage = true; } #endif // PDF_ENABLE_XFA private: @@ -618,7 +619,7 @@ class CPDFSDK_PageView final : public CPDF_Page::View { CPDFSDK_Document* const m_pSDKDoc; CPDFSDK_Annot* m_CaptureWidget; #ifndef PDF_ENABLE_XFA - FX_BOOL m_bTakeOverPage; + bool m_bOwnsPage; #endif // PDF_ENABLE_XFA FX_BOOL m_bEnterWidget; FX_BOOL m_bExitWidget; diff --git a/fpdfsdk/javascript/Field.cpp b/fpdfsdk/javascript/Field.cpp index 3f5e5e1b0f..64c7735dcf 100644 --- a/fpdfsdk/javascript/Field.cpp +++ b/fpdfsdk/javascript/Field.cpp @@ -260,11 +260,12 @@ void Field::UpdateFormField(CPDFSDK_Document* pDocument, FX_BOOL bChangeMark, FX_BOOL bResetAP, FX_BOOL bRefresh) { - std::vector<CPDFSDK_Widget*> widgets; CPDFSDK_InterForm* pInterForm = pDocument->GetInterForm(); - pInterForm->GetWidgets(pFormField, &widgets); if (bResetAP) { + std::vector<CPDFSDK_Widget*> widgets; + pInterForm->GetWidgets(pFormField, &widgets); + int nFieldType = pFormField->GetFieldType(); if (nFieldType == FIELDTYPE_COMBOBOX || nFieldType == FIELDTYPE_TEXTFIELD) { for (CPDFSDK_Annot* pAnnot : widgets) { @@ -285,6 +286,12 @@ void Field::UpdateFormField(CPDFSDK_Document* pDocument, } if (bRefresh) { + // Refresh the widget list. The calls in |bResetAP| may have caused widgets + // to be removed from the list. We need to call |GetWidgets| again to be + // sure none of the widgets have been deleted. + std::vector<CPDFSDK_Widget*> widgets; + pInterForm->GetWidgets(pFormField, &widgets); + for (CPDFSDK_Widget* pWidget : widgets) { CPDFSDK_Document* pDoc = pWidget->GetInterForm()->GetDocument(); pDoc->UpdateAllViews(nullptr, pWidget); |