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// 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/fsdk_define.h"
#include "../include/fpdfdoc.h"
static int this_module = 0;
static CPDF_Bookmark FindBookmark(CPDF_BookmarkTree& tree, CPDF_Bookmark This, const CFX_WideString& title)
{
if (This != NULL) {
// First check this item
CFX_WideString this_title = This.GetTitle();
if (this_title.CompareNoCase(title) == 0)
return This;
}
// go into children items
CPDF_Bookmark Child = tree.GetFirstChild(This);
while (Child != NULL) {
// check if this item
CPDF_Bookmark Found = FindBookmark(tree, Child, title);
if (Found) return Found;
Child = tree.GetNextSibling(Child);
}
return NULL;
}
DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_Find(FPDF_DOCUMENT document, FPDF_WIDESTRING title)
{
if (document == NULL) return NULL;
if (title == NULL || title[0] == 0) return NULL;
CPDF_Document* pDoc = (CPDF_Document*)document;
CPDF_BookmarkTree tree(pDoc);
CFX_WideString wstr = CFX_WideString::FromUTF16LE(title);
return FindBookmark(tree, NULL, wstr);
}
DLLEXPORT FPDF_DEST STDCALL FPDFBookmark_GetDest(FPDF_DOCUMENT document, FPDF_BOOKMARK bookmark)
{
if (document == NULL) return NULL;
if (bookmark == NULL) return NULL;
CPDF_Bookmark Bookmark = (CPDF_Dictionary*)bookmark;
CPDF_Document* pDoc = (CPDF_Document*)document;
CPDF_Dest dest = Bookmark.GetDest(pDoc);
if (dest != NULL) return dest;
// If this bookmark is not directly associated with a dest, we try to get action
CPDF_Action Action = Bookmark.GetAction();
if (Action == NULL) return NULL;
return Action.GetDest(pDoc);
}
DLLEXPORT FPDF_ACTION STDCALL FPDFBookmark_GetAction(FPDF_BOOKMARK bookmark)
{
if (bookmark == NULL) return NULL;
CPDF_Bookmark Bookmark = (CPDF_Dictionary*)bookmark;
return Bookmark.GetAction();
}
DLLEXPORT unsigned long STDCALL FPDFAction_GetType(FPDF_ACTION action)
{
if (action == NULL) return 0;
CPDF_Action Action = (CPDF_Dictionary*)action;
CPDF_Action::ActionType type = Action.GetType();
switch (type) {
case CPDF_Action::GoTo:
return PDFACTION_GOTO;
case CPDF_Action::GoToR:
return PDFACTION_REMOTEGOTO;
case CPDF_Action::URI:
return PDFACTION_URI;
case CPDF_Action::Launch:
return PDFACTION_LAUNCH;
default:
return PDFACTION_UNSUPPORTED;
}
return PDFACTION_UNSUPPORTED;
}
DLLEXPORT FPDF_DEST STDCALL FPDFAction_GetDest(FPDF_DOCUMENT document, FPDF_ACTION action)
{
if (document == NULL) return NULL;
if (action == NULL) return NULL;
CPDF_Document* pDoc = (CPDF_Document*)document;
CPDF_Action Action = (CPDF_Dictionary*)action;
return Action.GetDest(pDoc);
}
DLLEXPORT unsigned long STDCALL FPDFAction_GetURIPath(FPDF_DOCUMENT document, FPDF_ACTION action,
void* buffer, unsigned long buflen)
{
if (document == NULL) return 0;
if (action == NULL) return 0;
CPDF_Document* pDoc = (CPDF_Document*)document;
CPDF_Action Action = (CPDF_Dictionary*)action;
CFX_ByteString path = Action.GetURI(pDoc);
unsigned long len = path.GetLength() + 1;
if (buffer != NULL && buflen >= len)
FXSYS_memcpy(buffer, (FX_LPCSTR)path, len);
return len;
}
DLLEXPORT unsigned long STDCALL FPDFDest_GetPageIndex(FPDF_DOCUMENT document, FPDF_DEST dest)
{
if (document == NULL) return 0;
if (dest == NULL) return 0;
CPDF_Document* pDoc = (CPDF_Document*)document;
CPDF_Dest Dest = (CPDF_Array*)dest;
return Dest.GetPageIndex(pDoc);
}
static void ReleaseLinkList(FX_LPVOID data)
{
delete (CPDF_LinkList*)data;
}
DLLEXPORT FPDF_LINK STDCALL FPDFLink_GetLinkAtPoint(FPDF_PAGE page, double x, double y)
{
if (page == NULL) return NULL;
CPDF_Page* pPage = (CPDF_Page*)page;
// Link list is stored with the document
CPDF_Document* pDoc = pPage->m_pDocument;
CPDF_LinkList* pLinkList = (CPDF_LinkList*)pDoc->GetPrivateData(&this_module);
if (pLinkList == NULL) {
pLinkList = FX_NEW CPDF_LinkList(pDoc);
pDoc->SetPrivateData(&this_module, pLinkList, ReleaseLinkList);
}
return pLinkList->GetLinkAtPoint(pPage, (FX_FLOAT)x, (FX_FLOAT)y);
}
DLLEXPORT FPDF_DEST STDCALL FPDFLink_GetDest(FPDF_DOCUMENT document, FPDF_LINK link)
{
if (document == NULL) return NULL;
CPDF_Document* pDoc = (CPDF_Document*)document;
if (link == NULL) return NULL;
CPDF_Link Link = (CPDF_Dictionary*)link;
FPDF_DEST dest = Link.GetDest(pDoc);
if (dest) return dest;
// If this link is not directly associated with a dest, we try to get action
CPDF_Action Action = Link.GetAction();
if (Action == NULL) return NULL;
return Action.GetDest(pDoc);
}
DLLEXPORT FPDF_ACTION STDCALL FPDFLink_GetAction(FPDF_LINK link)
{
if (link == NULL) return NULL;
CPDF_Link Link = (CPDF_Dictionary*)link;
return Link.GetAction();
}
DLLEXPORT FPDF_BOOL STDCALL FPDFLink_Enumerate(FPDF_PAGE page, int* startPos, FPDF_LINK* linkAnnot)
{
if(!page || !startPos || !linkAnnot)
return FALSE;
CPDF_Page* pPage = (CPDF_Page*)page;
if(!pPage->m_pFormDict) return FALSE;
CPDF_Array* pAnnots = pPage->m_pFormDict->GetArray("Annots");
if(!pAnnots) return FALSE;
for (int i = *startPos; i < (int)pAnnots->GetCount(); i ++) {
CPDF_Dictionary* pDict = (CPDF_Dictionary*)pAnnots->GetElementValue(i);
if (pDict == NULL || pDict->GetType() != PDFOBJ_DICTIONARY) continue;
if(pDict->GetString(FX_BSTRC("Subtype")).Equal(FX_BSTRC("Link")))
{
*startPos = i+1;
*linkAnnot = (FPDF_LINK)pDict;
return TRUE;
}
}
return FALSE;
}
DLLEXPORT FPDF_BOOL STDCALL FPDFLink_GetAnnotRect(FPDF_LINK linkAnnot, FS_RECTF* rect)
{
if(!linkAnnot || !rect)
return FALSE;
CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
CPDF_Rect rt = pAnnotDict->GetRect(FX_BSTRC("Rect"));
rect->left = rt.left;
rect->bottom = rt.bottom;
rect->right = rt.right;
rect->top = rt.top;
return TRUE;
}
DLLEXPORT int STDCALL FPDFLink_CountQuadPoints(FPDF_LINK linkAnnot)
{
if(!linkAnnot)
return 0;
CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
CPDF_Array* pArray = pAnnotDict->GetArray(FX_BSTRC("QuadPoints"));
if (pArray == NULL)
return 0;
else
return pArray->GetCount() / 8;
}
DLLEXPORT FPDF_BOOL STDCALL FPDFLink_GetQuadPoints(FPDF_LINK linkAnnot, int quadIndex, FS_QUADPOINTSF* quadPoints)
{
if(!linkAnnot || !quadPoints)
return FALSE;
CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
CPDF_Array* pArray = pAnnotDict->GetArray(FX_BSTRC("QuadPoints"));
if (pArray) {
if (0 > quadIndex || quadIndex >= (int)pArray->GetCount()/8 ||
((quadIndex*8+7) >= (int)pArray->GetCount())) return FALSE;
quadPoints->x1 = pArray->GetNumber(quadIndex*8);
quadPoints->y1 = pArray->GetNumber(quadIndex*8+1);
quadPoints->x2 = pArray->GetNumber(quadIndex*8+2);
quadPoints->y2 = pArray->GetNumber(quadIndex*8+3);
quadPoints->x3 = pArray->GetNumber(quadIndex*8+4);
quadPoints->y3 = pArray->GetNumber(quadIndex*8+5);
quadPoints->x4 = pArray->GetNumber(quadIndex*8+6);
quadPoints->y4 = pArray->GetNumber(quadIndex*8+7);
return TRUE;
}
return FALSE;
}
DLLEXPORT unsigned long STDCALL FPDF_GetMetaText(FPDF_DOCUMENT doc, FPDF_BYTESTRING tag,
void* buffer, unsigned long buflen)
{
if (doc == NULL || tag == NULL) return 0;
CPDF_Document* pDoc = (CPDF_Document*)doc;
// Get info dictionary
CPDF_Dictionary* pInfo = pDoc->GetInfo();
if (pInfo == NULL) return 0;
CFX_WideString text = pInfo->GetUnicodeText(tag);
// Use UTF-16LE encoding
CFX_ByteString bstr = text.UTF16LE_Encode();
unsigned long len = bstr.GetLength();
if (buffer != NULL || buflen >= len+2) {
FXSYS_memcpy(buffer, (FX_LPCSTR)bstr, len);
// use double zero as trailer
((FX_BYTE*)buffer)[len] = ((FX_BYTE*)buffer)[len+1] = 0;
}
return len+2;
}