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