Add APIs for getting bookmarks and named destinations.

fpdfsdk/src/fpdfview.cpp

Index: fpdfsdk/src/fpdfview.cpp
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
index 653702382c6ea4389604a397503f3568f073b153..a97730a8d38457e484ab5e2062dc14ecd2e68cd1 100644
--- a/fpdfsdk/src/fpdfview.cpp
+++ b/fpdfsdk/src/fpdfview.cpp
@@ -789,14 +789,75 @@ DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT documen
     return DuplexUndefined;
 }
 
+DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document)
+{
+    if (!document) return 0;
+    CPDF_Document* pDoc = (CPDF_Document*)document;
+
+    CPDF_Dictionary* pRoot = pDoc->GetRoot();
+    if (!pRoot) return 0;
+
+    CPDF_NameTree nameTree(pDoc, FX_BSTRC("Dests"));
+    int count = nameTree.GetCount();
+    CPDF_Dictionary* pDest = pRoot->GetDict(FX_BSTRC("Dests"));
+    if (pDest)
+        count += pDest->GetCount();
+    return count;
+}
+
 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name)
 {
-	if (document == NULL)
+	if (!document)
 		return NULL;
-	if (name == NULL || name[0] == 0) 
+	if (!name || name[0] == 0) 
 		return NULL;
 
 	CPDF_Document* pDoc = (CPDF_Document*)document;
 	CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
 	return name_tree.LookupNamedDest(pDoc, name);
 }
+
+DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, int index, char* name, unsigned int& len)
+{
+    if (!name)
+        len = 0;
+    if (!document || index < 0) return NULL;
+    CPDF_Document* pDoc = (CPDF_Document*)document;
+
+    CPDF_Dictionary* pRoot = pDoc->GetRoot();
+    if (!pRoot) return NULL;
+
+    CPDF_Object* pDestObj = NULL;
+    CFX_ByteString bsName;
+    CPDF_NameTree nameTree(pDoc, FX_BSTRC("Dests"));
+    int count = nameTree.GetCount();
+    if (index >= count) {
+        CPDF_Dictionary* pDest = pRoot->GetDict(FX_BSTRC("Dests"));
+        if (!pDest) return NULL;
+        if (index >= count + pDest->GetCount()) return NULL;
+        index -= count;
+        FX_POSITION pos = pDest->GetStartPos();
+        int i = 0;
+        while (pos) {
+            pDestObj = pDest->GetNextElement(pos, bsName);
+            if (!pDestObj) continue;
+            if (i == index) break;
+            i++;
+        }
+    } else {
+        pDestObj = nameTree.LookupValue(index, bsName);
+    }
+    if (!pDestObj) return NULL;
+    if (pDestObj->GetType() == PDFOBJ_DICTIONARY)
+        pDestObj = ((CPDF_Dictionary*)pDestObj)->GetArray(FX_BSTRC("D"));
+    if (pDestObj->GetType() != PDFOBJ_ARRAY) return NULL;
+    if (!name) {
+        len = bsName.GetLength() + 1;
+    } else {
+        CFX_WideString wsName = PDF_DecodeText(bsName);

[Tom Sepez, 2015/01/07 16:56:24]

need to check that len was sufficient here to get the whole value.

[Bo Xu, 2015/01/09 19:35:21]

Return -1 if length not sufficient.

+        CFX_ByteString utf16Name = wsName.UTF16LE_Encode();
+        memcpy(name, utf16Name.c_str(), len-1);
+        name[len-1] = '\0';
+    }
+    return (FPDF_DEST)pDestObj;
+}