1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "../include/fsdk_define.h"
8 #include "../../public/fpdf_doc.h"
9
10 static int THISMODULE = 0;
11
FindBookmark(const CPDF_BookmarkTree & tree,CPDF_Bookmark bookmark,const CFX_WideString & title)12 static CPDF_Bookmark FindBookmark(const CPDF_BookmarkTree& tree, CPDF_Bookmark bookmark, const CFX_WideString& title)
13 {
14 if (bookmark && bookmark.GetTitle().CompareNoCase(title.c_str()) == 0) {
15 // First check this item
16 return bookmark;
17 }
18 // go into children items
19 CPDF_Bookmark child = tree.GetFirstChild(bookmark);
20 while (child) {
21 // check if this item
22 CPDF_Bookmark found = FindBookmark(tree, child, title);
23 if (found)
24 return found;
25 child = tree.GetNextSibling(child);
26 }
27 return CPDF_Bookmark();
28 }
29
FPDFBookmark_GetFirstChild(FPDF_DOCUMENT document,FPDF_BOOKMARK pDict)30 DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_GetFirstChild(FPDF_DOCUMENT document, FPDF_BOOKMARK pDict)
31 {
32 if (!document)
33 return NULL;
34 CPDF_Document* pDoc = (CPDF_Document*)document;
35 CPDF_BookmarkTree tree(pDoc);
36 CPDF_Bookmark bookmark = CPDF_Bookmark((CPDF_Dictionary*)pDict);
37 return tree.GetFirstChild(bookmark).GetDict();
38 }
39
FPDFBookmark_GetNextSibling(FPDF_DOCUMENT document,FPDF_BOOKMARK pDict)40 DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_GetNextSibling(FPDF_DOCUMENT document, FPDF_BOOKMARK pDict)
41 {
42 if (!document || !pDict)
43 return NULL;
44 CPDF_Document* pDoc = (CPDF_Document*)document;
45 CPDF_BookmarkTree tree(pDoc);
46 CPDF_Bookmark bookmark = CPDF_Bookmark((CPDF_Dictionary*)pDict);
47 return tree.GetNextSibling(bookmark).GetDict();
48 }
49
FPDFBookmark_GetTitle(FPDF_BOOKMARK pDict,void * buffer,unsigned long buflen)50 DLLEXPORT unsigned long STDCALL FPDFBookmark_GetTitle(FPDF_BOOKMARK pDict, void* buffer, unsigned long buflen)
51 {
52 if (!pDict)
53 return 0;
54 CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict);
55 CFX_WideString title = bookmark.GetTitle();
56 CFX_ByteString encodedTitle = title.UTF16LE_Encode();
57 unsigned long len = encodedTitle.GetLength();
58 if (buffer && buflen >= len) {
59 FXSYS_memcpy(buffer, encodedTitle.c_str(), len);
60 }
61 return len;
62 }
63
FPDFBookmark_Find(FPDF_DOCUMENT document,FPDF_WIDESTRING title)64 DLLEXPORT FPDF_BOOKMARK STDCALL FPDFBookmark_Find(FPDF_DOCUMENT document, FPDF_WIDESTRING title)
65 {
66 if (!document)
67 return NULL;
68 if (!title || title[0] == 0)
69 return NULL;
70 CPDF_Document* pDoc = (CPDF_Document*)document;
71 CPDF_BookmarkTree tree(pDoc);
72 FX_STRSIZE len = CFX_WideString::WStringLength(title);
73 CFX_WideString encodedTitle = CFX_WideString::FromUTF16LE(title, len);
74 return FindBookmark(tree, CPDF_Bookmark(), encodedTitle).GetDict();
75 }
76
FPDFBookmark_GetDest(FPDF_DOCUMENT document,FPDF_BOOKMARK pDict)77 DLLEXPORT FPDF_DEST STDCALL FPDFBookmark_GetDest(FPDF_DOCUMENT document, FPDF_BOOKMARK pDict)
78 {
79 if (!document)
80 return NULL;
81 if (!pDict)
82 return NULL;
83 CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict);
84 CPDF_Document* pDoc = (CPDF_Document*)document;
85 CPDF_Dest dest = bookmark.GetDest(pDoc);
86 if (dest)
87 return dest.GetObject();
88 // If this bookmark is not directly associated with a dest, we try to get action
89 CPDF_Action action = bookmark.GetAction();
90 if (!action)
91 return NULL;
92 return action.GetDest(pDoc).GetObject();
93 }
94
FPDFBookmark_GetAction(FPDF_BOOKMARK pDict)95 DLLEXPORT FPDF_ACTION STDCALL FPDFBookmark_GetAction(FPDF_BOOKMARK pDict)
96 {
97 if (!pDict)
98 return NULL;
99 CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict);
100 return bookmark.GetAction().GetDict();
101 }
102
FPDFAction_GetType(FPDF_ACTION pDict)103 DLLEXPORT unsigned long STDCALL FPDFAction_GetType(FPDF_ACTION pDict)
104 {
105 if (!pDict)
106 return 0;
107 CPDF_Action action((CPDF_Dictionary*)pDict);
108 CPDF_Action::ActionType type = action.GetType();
109 switch (type) {
110 case CPDF_Action::GoTo:
111 return PDFACTION_GOTO;
112 case CPDF_Action::GoToR:
113 return PDFACTION_REMOTEGOTO;
114 case CPDF_Action::URI:
115 return PDFACTION_URI;
116 case CPDF_Action::Launch:
117 return PDFACTION_LAUNCH;
118 default:
119 return PDFACTION_UNSUPPORTED;
120 }
121 return PDFACTION_UNSUPPORTED;
122 }
123
FPDFAction_GetDest(FPDF_DOCUMENT document,FPDF_ACTION pDict)124 DLLEXPORT FPDF_DEST STDCALL FPDFAction_GetDest(FPDF_DOCUMENT document, FPDF_ACTION pDict)
125 {
126 if (!document)
127 return NULL;
128 if (!pDict)
129 return NULL;
130 CPDF_Document* pDoc = (CPDF_Document*)document;
131 CPDF_Action action((CPDF_Dictionary*)pDict);
132 return action.GetDest(pDoc).GetObject();
133 }
134
FPDFAction_GetURIPath(FPDF_DOCUMENT document,FPDF_ACTION pDict,void * buffer,unsigned long buflen)135 DLLEXPORT unsigned long STDCALL FPDFAction_GetURIPath(FPDF_DOCUMENT document, FPDF_ACTION pDict,
136 void* buffer, unsigned long buflen)
137 {
138 if (!document)
139 return 0;
140 if (!pDict)
141 return 0;
142 CPDF_Document* pDoc = (CPDF_Document*)document;
143 CPDF_Action action((CPDF_Dictionary*)pDict);
144 CFX_ByteString path = action.GetURI(pDoc);
145 unsigned long len = path.GetLength() + 1;
146 if (buffer != NULL && buflen >= len)
147 FXSYS_memcpy(buffer, path.c_str(), len);
148 return len;
149 }
150
FPDFDest_GetPageIndex(FPDF_DOCUMENT document,FPDF_DEST pDict)151 DLLEXPORT unsigned long STDCALL FPDFDest_GetPageIndex(FPDF_DOCUMENT document, FPDF_DEST pDict)
152 {
153 if (!document)
154 return 0;
155 if (!pDict)
156 return 0;
157 CPDF_Document* pDoc = (CPDF_Document*)document;
158 CPDF_Dest dest((CPDF_Array*)pDict);
159 return dest.GetPageIndex(pDoc);
160 }
161
ReleaseLinkList(FX_LPVOID data)162 static void ReleaseLinkList(FX_LPVOID data)
163 {
164 delete (CPDF_LinkList*)data;
165 }
166
FPDFLink_GetLinkAtPoint(FPDF_PAGE page,double x,double y)167 DLLEXPORT FPDF_LINK STDCALL FPDFLink_GetLinkAtPoint(FPDF_PAGE page, double x, double y)
168 {
169 if (!page)
170 return NULL;
171 CPDF_Page* pPage = (CPDF_Page*)page;
172 // Link list is stored with the document
173 CPDF_Document* pDoc = pPage->m_pDocument;
174 CPDF_LinkList* pLinkList = (CPDF_LinkList*)pDoc->GetPrivateData(&THISMODULE);
175 if (!pLinkList) {
176 pLinkList = new CPDF_LinkList(pDoc);
177 pDoc->SetPrivateData(&THISMODULE, pLinkList, ReleaseLinkList);
178 }
179 return pLinkList->GetLinkAtPoint(pPage, (FX_FLOAT)x, (FX_FLOAT)y).GetDict();
180 }
181
FPDFLink_GetDest(FPDF_DOCUMENT document,FPDF_LINK pDict)182 DLLEXPORT FPDF_DEST STDCALL FPDFLink_GetDest(FPDF_DOCUMENT document, FPDF_LINK pDict)
183 {
184 if (!document)
185 return NULL;
186 if (!pDict)
187 return NULL;
188 CPDF_Document* pDoc = (CPDF_Document*)document;
189 CPDF_Link link((CPDF_Dictionary*)pDict);
190 FPDF_DEST dest = link.GetDest(pDoc).GetObject();
191 if (dest)
192 return dest;
193 // If this link is not directly associated with a dest, we try to get action
194 CPDF_Action action = link.GetAction();
195 if (!action)
196 return NULL;
197 return action.GetDest(pDoc).GetObject();
198 }
199
FPDFLink_GetAction(FPDF_LINK pDict)200 DLLEXPORT FPDF_ACTION STDCALL FPDFLink_GetAction(FPDF_LINK pDict)
201 {
202 if (!pDict)
203 return NULL;
204 CPDF_Link link((CPDF_Dictionary*)pDict);
205 return link.GetAction().GetDict();
206 }
207
FPDFLink_Enumerate(FPDF_PAGE page,int * startPos,FPDF_LINK * linkAnnot)208 DLLEXPORT FPDF_BOOL STDCALL FPDFLink_Enumerate(FPDF_PAGE page, int* startPos, FPDF_LINK* linkAnnot)
209 {
210 if(!page || !startPos || !linkAnnot)
211 return FALSE;
212 CPDF_Page* pPage = (CPDF_Page*)page;
213 if(!pPage->m_pFormDict)
214 return FALSE;
215 CPDF_Array* pAnnots = pPage->m_pFormDict->GetArray("Annots");
216 if(!pAnnots)
217 return FALSE;
218 for (int i = *startPos; i < (int)pAnnots->GetCount(); i++) {
219 CPDF_Dictionary* pDict = (CPDF_Dictionary*)pAnnots->GetElementValue(i);
220 if (!pDict || pDict->GetType() != PDFOBJ_DICTIONARY)
221 continue;
222 if(pDict->GetString(FX_BSTRC("Subtype")).Equal(FX_BSTRC("Link"))) {
223 *startPos = i + 1;
224 *linkAnnot = (FPDF_LINK)pDict;
225 return TRUE;
226 }
227 }
228 return FALSE;
229 }
230
FPDFLink_GetAnnotRect(FPDF_LINK linkAnnot,FS_RECTF * rect)231 DLLEXPORT FPDF_BOOL STDCALL FPDFLink_GetAnnotRect(FPDF_LINK linkAnnot, FS_RECTF* rect)
232 {
233 if(!linkAnnot || !rect)
234 return FALSE;
235 CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
236 CPDF_Rect rt = pAnnotDict->GetRect(FX_BSTRC("Rect"));
237 rect->left = rt.left;
238 rect->bottom = rt.bottom;
239 rect->right = rt.right;
240 rect->top = rt.top;
241 return TRUE;
242 }
243
FPDFLink_CountQuadPoints(FPDF_LINK linkAnnot)244 DLLEXPORT int STDCALL FPDFLink_CountQuadPoints(FPDF_LINK linkAnnot)
245 {
246 if(!linkAnnot)
247 return 0;
248 CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
249 CPDF_Array* pArray = pAnnotDict->GetArray(FX_BSTRC("QuadPoints"));
250 if (!pArray)
251 return 0;
252 else
253 return pArray->GetCount() / 8;
254 }
255
FPDFLink_GetQuadPoints(FPDF_LINK linkAnnot,int quadIndex,FS_QUADPOINTSF * quadPoints)256 DLLEXPORT FPDF_BOOL STDCALL FPDFLink_GetQuadPoints(FPDF_LINK linkAnnot, int quadIndex, FS_QUADPOINTSF* quadPoints)
257 {
258 if(!linkAnnot || !quadPoints)
259 return FALSE;
260 CPDF_Dictionary* pAnnotDict = (CPDF_Dictionary*)linkAnnot;
261 CPDF_Array* pArray = pAnnotDict->GetArray(FX_BSTRC("QuadPoints"));
262 if (pArray) {
263 if (quadIndex < 0 || quadIndex >= (int)pArray->GetCount()/8 || ((quadIndex*8+7) >= (int)pArray->GetCount()))
264 return FALSE;
265 quadPoints->x1 = pArray->GetNumber(quadIndex*8);
266 quadPoints->y1 = pArray->GetNumber(quadIndex*8+1);
267 quadPoints->x2 = pArray->GetNumber(quadIndex*8+2);
268 quadPoints->y2 = pArray->GetNumber(quadIndex*8+3);
269 quadPoints->x3 = pArray->GetNumber(quadIndex*8+4);
270 quadPoints->y3 = pArray->GetNumber(quadIndex*8+5);
271 quadPoints->x4 = pArray->GetNumber(quadIndex*8+6);
272 quadPoints->y4 = pArray->GetNumber(quadIndex*8+7);
273 return TRUE;
274 }
275 return FALSE;
276 }
277
FPDF_GetMetaText(FPDF_DOCUMENT doc,FPDF_BYTESTRING tag,void * buffer,unsigned long buflen)278 DLLEXPORT unsigned long STDCALL FPDF_GetMetaText(FPDF_DOCUMENT doc, FPDF_BYTESTRING tag,
279 void* buffer, unsigned long buflen)
280 {
281 if (!doc || !tag)
282 return 0;
283 CPDF_Document* pDoc = (CPDF_Document*)doc;
284 // Get info dictionary
285 CPDF_Dictionary* pInfo = pDoc->GetInfo();
286 if (!pInfo)
287 return 0;
288 CFX_WideString text = pInfo->GetUnicodeText(tag);
289 // Use UTF-16LE encoding
290 CFX_ByteString encodedText = text.UTF16LE_Encode();
291 unsigned long len = encodedText.GetLength();
292 if (buffer && buflen >= len) {
293 FXSYS_memcpy(buffer, encodedText.c_str(), len);
294 }
295 return len;
296 }
297