| // 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 "../../public/fpdf_doc.h" |
| |
| namespace { |
| |
| int THISMODULE = 0; |
| |
| CPDF_Bookmark FindBookmark(const CPDF_BookmarkTree& tree, |
| CPDF_Bookmark bookmark, |
| const CFX_WideString& title) { |
| if (bookmark && bookmark.GetTitle().CompareNoCase(title.c_str()) == 0) { |
| // First check this item |
| return bookmark; |
| } |
| // go into children items |
| CPDF_Bookmark child = tree.GetFirstChild(bookmark); |
| while (child) { |
| // check if this item |
| CPDF_Bookmark found = FindBookmark(tree, child, title); |
| if (found) |
| return found; |
| child = tree.GetNextSibling(child); |
| } |
| return CPDF_Bookmark(); |
| } |
| |
| void ReleaseLinkList(void* data) { |
| delete (CPDF_LinkList*)data; |
| } |
| |
| CPDF_LinkList* GetLinkList(CPDF_Page* page) { |
| if (!page) |
| return nullptr; |
| |
| // Link list is stored with the document |
| CPDF_Document* pDoc = page->m_pDocument; |
| CPDF_LinkList* pLinkList = (CPDF_LinkList*)pDoc->GetPrivateData(&THISMODULE); |
| if (!pLinkList) { |
| pLinkList = new CPDF_LinkList; |
| pDoc->SetPrivateData(&THISMODULE, pLinkList, ReleaseLinkList); |
| } |
| return pLinkList; |
| } |
| |
| } // namespace |
| |
| DLLEXPORT FPDF_BOOKMARK STDCALL |
| FPDFBookmark_GetFirstChild(FPDF_DOCUMENT document, FPDF_BOOKMARK pDict) { |
| if (!document) |
| return NULL; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_BookmarkTree tree(pDoc); |
| CPDF_Bookmark bookmark = CPDF_Bookmark((CPDF_Dictionary*)pDict); |
| return tree.GetFirstChild(bookmark).GetDict(); |
| } |
| |
| DLLEXPORT FPDF_BOOKMARK STDCALL |
| FPDFBookmark_GetNextSibling(FPDF_DOCUMENT document, FPDF_BOOKMARK pDict) { |
| if (!document || !pDict) |
| return NULL; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_BookmarkTree tree(pDoc); |
| CPDF_Bookmark bookmark = CPDF_Bookmark((CPDF_Dictionary*)pDict); |
| return tree.GetNextSibling(bookmark).GetDict(); |
| } |
| |
| DLLEXPORT unsigned long STDCALL FPDFBookmark_GetTitle(FPDF_BOOKMARK pDict, |
| void* buffer, |
| unsigned long buflen) { |
| if (!pDict) |
| return 0; |
| CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict); |
| CFX_WideString title = bookmark.GetTitle(); |
| CFX_ByteString encodedTitle = title.UTF16LE_Encode(); |
| unsigned long len = encodedTitle.GetLength(); |
| if (buffer && buflen >= len) { |
| FXSYS_memcpy(buffer, encodedTitle.c_str(), len); |
| } |
| return len; |
| } |
| |
| DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_Find(FPDF_DOCUMENT document, |
| FPDF_WIDESTRING title) { |
| if (!document) |
| return NULL; |
| if (!title || title[0] == 0) |
| return NULL; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_BookmarkTree tree(pDoc); |
| FX_STRSIZE len = CFX_WideString::WStringLength(title); |
| CFX_WideString encodedTitle = CFX_WideString::FromUTF16LE(title, len); |
| return FindBookmark(tree, CPDF_Bookmark(), encodedTitle).GetDict(); |
| } |
| |
| DLLEXPORT FPDF_DEST STDCALL FPDFBookmark_GetDest(FPDF_DOCUMENT document, |
| FPDF_BOOKMARK pDict) { |
| if (!document) |
| return NULL; |
| if (!pDict) |
| return NULL; |
| CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict); |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_Dest dest = bookmark.GetDest(pDoc); |
| if (dest) |
| return dest.GetObject(); |
| // If this bookmark is not directly associated with a dest, we try to get |
| // action |
| CPDF_Action action = bookmark.GetAction(); |
| if (!action) |
| return NULL; |
| return action.GetDest(pDoc).GetObject(); |
| } |
| |
| DLLEXPORT FPDF_ACTION STDCALL FPDFBookmark_GetAction(FPDF_BOOKMARK pDict) { |
| if (!pDict) |
| return NULL; |
| CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict); |
| return bookmark.GetAction().GetDict(); |
| } |
| |
| DLLEXPORT unsigned long STDCALL FPDFAction_GetType(FPDF_ACTION pDict) { |
| if (!pDict) |
| return 0; |
| CPDF_Action action((CPDF_Dictionary*)pDict); |
| 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 pDict) { |
| if (!document) |
| return NULL; |
| if (!pDict) |
| return NULL; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_Action action((CPDF_Dictionary*)pDict); |
| return action.GetDest(pDoc).GetObject(); |
| } |
| |
| DLLEXPORT unsigned long STDCALL FPDFAction_GetURIPath(FPDF_DOCUMENT document, |
| FPDF_ACTION pDict, |
| void* buffer, |
| unsigned long buflen) { |
| if (!document) |
| return 0; |
| if (!pDict) |
| return 0; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_Action action((CPDF_Dictionary*)pDict); |
| CFX_ByteString path = action.GetURI(pDoc); |
| unsigned long len = path.GetLength() + 1; |
| if (buffer != NULL && buflen >= len) |
| FXSYS_memcpy(buffer, path.c_str(), len); |
| return len; |
| } |
| |
| DLLEXPORT unsigned long STDCALL FPDFDest_GetPageIndex(FPDF_DOCUMENT document, |
| FPDF_DEST pDict) { |
| if (!document) |
| return 0; |
| if (!pDict) |
| return 0; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_Dest dest((CPDF_Array*)pDict); |
| return dest.GetPageIndex(pDoc); |
| } |
| |
| DLLEXPORT FPDF_LINK STDCALL |
| FPDFLink_GetLinkAtPoint(FPDF_PAGE page, double x, double y) { |
| CPDF_Page* pPage = (CPDF_Page*)page; |
| CPDF_LinkList* pLinkList = GetLinkList(pPage); |
| if (!pLinkList) |
| return nullptr; |
| |
| return pLinkList->GetLinkAtPoint(pPage, (FX_FLOAT)x, (FX_FLOAT)y, nullptr) |
| .GetDict(); |
| } |
| |
| DLLEXPORT int STDCALL |
| FPDFLink_GetLinkZOrderAtPoint(FPDF_PAGE page, double x, double y) { |
| CPDF_Page* pPage = (CPDF_Page*)page; |
| CPDF_LinkList* pLinkList = GetLinkList(pPage); |
| if (!pLinkList) |
| return -1; |
| |
| int z_order = -1; |
| pLinkList->GetLinkAtPoint(pPage, (FX_FLOAT)x, (FX_FLOAT)y, &z_order); |
| return z_order; |
| } |
| |
| DLLEXPORT FPDF_DEST STDCALL FPDFLink_GetDest(FPDF_DOCUMENT document, |
| FPDF_LINK pDict) { |
| if (!document) |
| return NULL; |
| if (!pDict) |
| return NULL; |
| CPDF_Document* pDoc = (CPDF_Document*)document; |
| CPDF_Link link((CPDF_Dictionary*)pDict); |
| FPDF_DEST dest = link.GetDest(pDoc).GetObject(); |
| 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) |
| return NULL; |
| return action.GetDest(pDoc).GetObject(); |
| } |
| |
| DLLEXPORT FPDF_ACTION STDCALL FPDFLink_GetAction(FPDF_LINK pDict) { |
| if (!pDict) |
| return NULL; |
| CPDF_Link link((CPDF_Dictionary*)pDict); |
| return link.GetAction().GetDict(); |
| } |
| |
| 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 || 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) |
| return 0; |
| 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 (quadIndex < 0 || 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 || !tag) |
| return 0; |
| CPDF_Document* pDoc = (CPDF_Document*)doc; |
| // Get info dictionary |
| CPDF_Dictionary* pInfo = pDoc->GetInfo(); |
| if (!pInfo) |
| return 0; |
| CFX_WideString text = pInfo->GetUnicodeText(tag); |
| // Use UTF-16LE encoding |
| CFX_ByteString encodedText = text.UTF16LE_Encode(); |
| unsigned long len = encodedText.GetLength(); |
| if (buffer && buflen >= len) { |
| FXSYS_memcpy(buffer, encodedText.c_str(), len); |
| } |
| return len; |
| } |
