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authorTom Sepez <tsepez@chromium.org>2017-09-14 17:03:12 -0700
committerChromium commit bot <commit-bot@chromium.org>2017-09-15 00:19:05 +0000
commitb1f9205bb1a0671c31e44e7362784c770bf2a948 (patch)
treedbb619f7fe5a987514ddccd7fca5594350241ee6 /fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
parent3cb71268405f64b98109853bd3b59e50db58692d (diff)
downloadpdfium-b1f9205bb1a0671c31e44e7362784c770bf2a948.tar.xz
OnBeforeKeystroke may invalidate the widget's window.
And along with it any data that the window may have been carrying. Tidy some return codes while we're at it. Bug: 765384 Change-Id: Id16ec5f82b3d9273ba8f2edb1e4645a9145df4f6 Reviewed-on: https://pdfium-review.googlesource.com/14050 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
Diffstat (limited to 'fpdfsdk/formfiller/cffl_interactiveformfiller.cpp')
-rw-r--r--fpdfsdk/formfiller/cffl_interactiveformfiller.cpp79
1 files changed, 40 insertions, 39 deletions
diff --git a/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
index eabb899c27..10cefd204b 100644
--- a/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
@@ -863,33 +863,33 @@ std::pair<bool, bool> CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
int nSelEnd,
bool bKeyDown,
uint32_t nFlag) {
- bool bRC = true;
- bool bExit = false;
- CFFL_PrivateData* pData = reinterpret_cast<CFFL_PrivateData*>(pPrivateData);
- ASSERT(pData->pWidget);
+ // Copy the private data since the window owning it may not survive.
+ CFFL_PrivateData privateData =
+ *reinterpret_cast<CFFL_PrivateData*>(pPrivateData);
+ ASSERT(privateData.pWidget);
- CFFL_FormFiller* pFormFiller = GetFormFiller(pData->pWidget, false);
+ CFFL_FormFiller* pFormFiller = GetFormFiller(privateData.pWidget, false);
#ifdef PDF_ENABLE_XFA
- if (pFormFiller->IsFieldFull(pData->pPageView)) {
- CPDFSDK_Annot::ObservedPtr pObserved(pData->pWidget);
- if (OnFull(&pObserved, pData->pPageView, nFlag) || !pObserved)
- return {bRC, true};
+ if (pFormFiller->IsFieldFull(privateData.pPageView)) {
+ CPDFSDK_Annot::ObservedPtr pObserved(privateData.pWidget);
+ if (OnFull(&pObserved, privateData.pPageView, nFlag) || !pObserved)
+ return {true, true};
}
#endif // PDF_ENABLE_XFA
if (m_bNotifying ||
- !pData->pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
- return {bRC, bExit};
+ !privateData.pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
+ return {true, false};
}
CFX_AutoRestorer<bool> restorer(&m_bNotifying);
m_bNotifying = true;
- int nAge = pData->pWidget->GetAppearanceAge();
- int nValueAge = pData->pWidget->GetValueAge();
+ int nAge = privateData.pWidget->GetAppearanceAge();
+ int nValueAge = privateData.pWidget->GetValueAge();
CPDFSDK_FormFillEnvironment* pFormFillEnv =
- pData->pPageView->GetFormFillEnv();
+ privateData.pPageView->GetFormFillEnv();
PDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
@@ -901,37 +901,38 @@ std::pair<bool, bool> CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
fa.bRC = true;
fa.nSelStart = nSelStart;
fa.nSelEnd = nSelEnd;
+ pFormFiller->GetActionData(privateData.pPageView, CPDF_AAction::KeyStroke,
+ fa);
+ pFormFiller->SaveState(privateData.pPageView);
- pFormFiller->GetActionData(pData->pPageView, CPDF_AAction::KeyStroke, fa);
- pFormFiller->SaveState(pData->pPageView);
+ CPDFSDK_Annot::ObservedPtr pObserved(privateData.pWidget);
+ bool action_status = privateData.pWidget->OnAAction(
+ CPDF_AAction::KeyStroke, fa, privateData.pPageView);
- CPDFSDK_Annot::ObservedPtr pObserved(pData->pWidget);
- if (!pData->pWidget->OnAAction(CPDF_AAction::KeyStroke, fa,
- pData->pPageView)) {
- if (!IsValidAnnot(pData->pPageView, pData->pWidget))
- bExit = true;
- return {bRC, bExit};
- }
+ if (!pObserved || !IsValidAnnot(privateData.pPageView, privateData.pWidget))
+ return {true, true};
- if (!pObserved || !IsValidAnnot(pData->pPageView, pData->pWidget))
- return {bRC, true};
+ if (!action_status)
+ return {true, false};
- if (nAge != pData->pWidget->GetAppearanceAge()) {
+ bool bExit = false;
+ if (nAge != privateData.pWidget->GetAppearanceAge()) {
CPWL_Wnd* pWnd = pFormFiller->ResetPDFWindow(
- pData->pPageView, nValueAge == pData->pWidget->GetValueAge());
- pData = reinterpret_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
+ privateData.pPageView, nValueAge == privateData.pWidget->GetValueAge());
+ if (!pWnd)
+ return {true, true};
+ privateData = *reinterpret_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
bExit = true;
}
+ if (fa.bRC) {
+ pFormFiller->SetActionData(privateData.pPageView, CPDF_AAction::KeyStroke,
+ fa);
+ } else {
+ pFormFiller->RestoreState(privateData.pPageView);
+ }
+ if (pFormFillEnv->GetFocusAnnot() == privateData.pWidget)
+ return {false, bExit};
- if (fa.bRC)
- pFormFiller->SetActionData(pData->pPageView, CPDF_AAction::KeyStroke, fa);
- else
- pFormFiller->RestoreState(pData->pPageView);
- bRC = false;
-
- if (pFormFillEnv->GetFocusAnnot() == pData->pWidget)
- return {bRC, bExit};
-
- pFormFiller->CommitData(pData->pPageView, nFlag);
- return {bRC, true};
+ pFormFiller->CommitData(privateData.pPageView, nFlag);
+ return {false, true};
}