XFA: merge patch from CL 834703002, add APIs for getting bookmarks and named destinations.

Also uses "((CPDFXFA_Document*)document)->GetPDFDoc();" in a various places

Add APIs for getting bookmarks and named destinations.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/834703002

2 files changed, 64 insertions, 0 deletions

diff --git a/fpdfsdk/include/fpdfdoc.h b/fpdfsdk/include/fpdfdoc.h
index da49ba062a..99deab27fe 100644
--- a/fpdfsdk/include/fpdfdoc.h
+++ b/fpdfsdk/include/fpdfdoc.h
@@ -14,6 +14,45 @@
 extern "C" {
 #endif
 
+// Function: FPDFBookmark_GetFirstChild
+//			Get the first child of a bookmark item, or the first top level bookmark item.
+// Parameters:
+//			document	-	Handle to the document. Returned by FPDF_LoadDocument or FPDF_LoadMemDocument.
+//			bookmark	-	Handle to the current bookmark. Can be NULL if you want to get the first top level item.
+// Return value:
+//			Handle to the first child or top level bookmark item. NULL if no child or top level bookmark found.
+//
+DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_GetFirstChild(FPDF_DOCUMENT document, FPDF_BOOKMARK bookmark);
+
+// Function: FPDFBookmark_GetNextSibling
+//			Get next bookmark item at the same level.
+// Parameters:
+//			document	-	Handle to the document. Returned by FPDF_LoadDocument or FPDF_LoadMemDocument.
+//			bookmark	-	Handle to the current bookmark. Cannot be NULL.
+// Return value:
+//			Handle to the next bookmark item at the same level. NULL if this is the last bookmark at this level.
+//
+DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_GetNextSibling(FPDF_DOCUMENT document, FPDF_BOOKMARK bookmark);
+
+// Function: FPDFBookmark_GetTitle
+//			Get title of a bookmark.
+// Parameters:
+//			bookmark	-	Handle to the bookmark.
+//			buffer  	-	Buffer for the title. Can be NULL.
+//          buflen      -   The length of the buffer in bytes. Can be 0.
+// Return value:
+//			Number of bytes the title consumes, including trailing zeros.
+// Comments:
+//			Regardless of the platform, the title is always in UTF-16LE encoding. That means the buffer
+//          can be treated as an array of WORD (on Intel and compatible CPUs), each WORD representing the Unicode of
+//          a character(some special Unicode may take 2 WORDs).The string is followed by two bytes of zero
+//          indicating the end of the string.
+//
+//          The return value always indicates the number of bytes required for the buffer, even if no buffer is specified
+//          or the buffer size is less then required. In these cases, the buffer will not be modified.
+//
+DLLEXPORT unsigned long STDCALL FPDFBookmark_GetTitle(FPDF_BOOKMARK bookmark, void* buffer, unsigned long buflen);
+
 // Function: FPDFBookmark_Find
 //			Find a bookmark in the document, using the bookmark title.
 // Parameters: 
diff --git a/fpdfsdk/include/fpdfview.h b/fpdfsdk/include/fpdfview.h
index 34c3f522a4..2ae1d1f5b9 100644
--- a/fpdfsdk/include/fpdfview.h
+++ b/fpdfsdk/include/fpdfview.h
@@ -720,6 +720,14 @@ DLLEXPORT FPDF_PAGERANGE STDCALL FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT
 //
 DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document);
 
+// Function: FPDF_CountNamedDests
+//			Get the count of named destinations in the PDF document.
+// Parameters:
+//			document	-	Handle to a document
+// Return value:
+//			The count of named destinations.
+DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document);
+
 // Function: FPDF_GetNamedDestByName
 //			get a special dest handle by the index.
 // Parameters: 
@@ -730,6 +738,23 @@ DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT documen
 //
 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name);
 
+// Function: FPDF_GetNamedDest
+//			Get the specified named destinations of the PDF document by index.
+// Parameters:
+//			document	-	Handle to a document
+//			index		-	The index of named destination.
+//			buffer		-	The buffer to obtain destination name, used as wchar_t*.
+//			buflen		-	The length of the buffer in byte.
+// Return value:
+//			The destination handle of a named destination, NULL when retrieving the length.
+// Comments:
+//			Call this function twice to get the name of the named destination:
+//			1) First time pass in |buffer| as NULL and get buflen.
+//			2) Second time pass in allocated |buffer| and buflen to retrieve |buffer|, which should be used as wchar_t*.
+//			   If buflen is not sufficiently large, it will be returned as -1.
+//
+DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, int index, void* buffer, unsigned long& buflen);
+
 // Function: FPDF_BStr_Init	
 //			Helper function to initialize a byte string.
 DLLEXPORT FPDF_RESULT STDCALL FPDF_BStr_Init(FPDF_BSTR* str);