Display content of the annotation when mouse hover.

core/fpdfdoc/include/cpdf_annot.h

Index: core/fpdfdoc/include/cpdf_annot.h
diff --git a/core/fpdfdoc/include/cpdf_annot.h b/core/fpdfdoc/include/cpdf_annot.h
index 9f8671633c2698a990490184590fe62c5eb9e65e..6d2bd8c2ed8135832fb3b12837920c6f15717ca6 100644
--- a/core/fpdfdoc/include/cpdf_annot.h
+++ b/core/fpdfdoc/include/cpdf_annot.h
@@ -61,6 +61,9 @@ class CPDF_Annot {
                   const CFX_Matrix* pUser2Device,
                   const CPDF_RenderOptions* pOptions);
   CPDF_Form* GetAPForm(const CPDF_Page* pPage, AppearanceMode mode);
+  void SetOpenState(bool bOpenState) { m_bOpenState = bOpenState; }
+  CPDF_Annot* GetPopupAnnot() const { return m_pPopupAnnot; }
+  void SetPopupAnnot(CPDF_Annot* pAnnot) { m_pPopupAnnot = pAnnot; }
 
  private:
   void GenerateAPIfNeeded();
@@ -69,6 +72,9 @@ class CPDF_Annot {
   CPDF_Document* const m_pDocument;
   const CFX_ByteString m_sSubtype;
   std::map<CPDF_Stream*, std::unique_ptr<CPDF_Form>> m_APMap;
+  bool m_bOpenState;

[Lei Zhang, 2016/08/27 02:16:53]

|m_bOpenState| is only ever set for popups, right?

[jaepark, 2016/08/29 21:19:25]

Yes, it is only set for popups.

+  // Not owned.
+  CPDF_Annot* m_pPopupAnnot;

[Lei Zhang, 2016/08/27 02:16:53]

And the annot with a valid pointer to the popup is never itself a popup, right?
Might be good to document these properties.

[jaepark, 2016/08/29 21:19:24]

Done.

 };
 
 CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict,