1 files changed, 105 insertions, 0 deletions
diff --git a/core/src/fpdfdoc/doc_link.cpp b/core/src/fpdfdoc/doc_link.cpp
new file mode 100644
index 0000000000..4c8fda7a34
--- /dev/null
+++ b/core/src/fpdfdoc/doc_link.cpp
@@ -0,0 +1,105 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+ 
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../include/fpdfdoc/fpdf_doc.h"
+CPDF_LinkList::~CPDF_LinkList()
+{
+    FX_POSITION pos = m_PageMap.GetStartPosition();
+    while (pos) {
+        FX_LPVOID key, value;
+        m_PageMap.GetNextAssoc(pos, key, value);
+        delete (CFX_PtrArray*)value;
+    }
+}
+CFX_PtrArray* CPDF_LinkList::GetPageLinks(CPDF_Page* pPage)
+{
+    FX_DWORD objnum = pPage->m_pFormDict->GetObjNum();
+    if (objnum == 0) {
+        return NULL;
+    }
+    CFX_PtrArray* pPageLinkList = NULL;
+    if (!m_PageMap.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, (FX_LPVOID&)pPageLinkList)) {
+        pPageLinkList = FX_NEW CFX_PtrArray;
+        if (pPageLinkList == NULL) {
+            return NULL;
+        }
+        m_PageMap.SetAt((FX_LPVOID)(FX_UINTPTR)objnum, pPageLinkList);
+        LoadPageLinks(pPage, pPageLinkList);
+    }
+    return pPageLinkList;
+}
+int CPDF_LinkList::CountLinks(CPDF_Page* pPage)
+{
+    CFX_PtrArray* pPageLinkList = GetPageLinks(pPage);
+    if (pPageLinkList == NULL) {
+        return 0;
+    }
+    return pPageLinkList->GetSize();
+}
+CPDF_Link CPDF_LinkList::GetLink(CPDF_Page* pPage, int index)
+{
+    CFX_PtrArray* pPageLinkList = GetPageLinks(pPage);
+    if (pPageLinkList == NULL) {
+        return NULL;
+    }
+    return (CPDF_Dictionary*)pPageLinkList->GetAt(index);
+}
+CPDF_Link CPDF_LinkList::GetLinkAtPoint(CPDF_Page* pPage, FX_FLOAT pdf_x, FX_FLOAT pdf_y)
+{
+    CFX_PtrArray* pPageLinkList = GetPageLinks(pPage);
+    if (pPageLinkList == NULL) {
+        return NULL;
+    }
+    int size = pPageLinkList->GetSize();
+    for (int i = 0; i < size; i ++) {
+        CPDF_Link Link = (CPDF_Dictionary*)pPageLinkList->GetAt(i);
+        CPDF_Rect rect = Link.GetRect();
+        if (rect.Contains(pdf_x, pdf_y)) {
+            return Link;
+        }
+    }
+    return NULL;
+}
+void CPDF_LinkList::LoadPageLinks(CPDF_Page* pPage, CFX_PtrArray* pList)
+{
+    CPDF_Array* pAnnotList = pPage->m_pFormDict->GetArray("Annots");
+    if (pAnnotList == NULL) {
+        return;
+    }
+    for (FX_DWORD i = 0; i < pAnnotList->GetCount(); i ++) {
+        CPDF_Dictionary* pAnnot = pAnnotList->GetDict(i);
+        if (pAnnot == NULL) {
+            continue;
+        }
+        if (pAnnot->GetString("Subtype") != "Link") {
+            continue;
+        }
+        pList->Add(pAnnot);
+    }
+}
+CPDF_Rect CPDF_Link::GetRect()
+{
+    return m_pDict->GetRect("Rect");
+}
+CPDF_Dest CPDF_Link::GetDest(CPDF_Document* pDoc)
+{
+    CPDF_Object* pDest = m_pDict->GetElementValue("Dest");
+    if (pDest == NULL) {
+        return NULL;
+    }
+    if (pDest->GetType() == PDFOBJ_STRING || pDest->GetType() == PDFOBJ_NAME) {
+        CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
+        CFX_ByteStringC name = pDest->GetString();
+        return name_tree.LookupNamedDest(pDoc, name);
+    } else if (pDest->GetType() == PDFOBJ_ARRAY) {
+        return (CPDF_Array*)pDest;
+    }
+    return NULL;
+}
+CPDF_Action CPDF_Link::GetAction()
+{
+    return m_pDict->GetDict("A");
+}