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[pdfium.git] / fpdfsdk / src / fpdfformfill.cpp
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 "../../public/fpdf_formfill.h"
8 #include "../../public/fpdfview.h"
9 #include "../include/fsdk_define.h"
10 #include "../include/fsdk_mgr.h"
11
12
13 #include "../include/javascript/IJavaScript.h"
14
15
16 DLLEXPORT int STDCALL FPDPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle, FPDF_PAGE page,double page_x, double page_y)
17 {
18         if(!page || !hHandle)
19                 return -1;
20         CPDF_Page * pPage = (CPDF_Page*) page;
21
22         CPDF_InterForm * pInterForm = NULL;
23         pInterForm = new CPDF_InterForm(pPage->m_pDocument,FALSE);
24         if (!pInterForm)
25                 return -1;
26         CPDF_FormControl* pFormCtrl = pInterForm->GetControlAtPoint(pPage, (FX_FLOAT)page_x, (FX_FLOAT)page_y);
27         if(!pFormCtrl)
28         {
29                 delete pInterForm;
30                 return -1;
31         }
32         CPDF_FormField* pFormField = pFormCtrl->GetField();
33         if(!pFormField)
34         {
35                 delete pInterForm;
36                 return -1;
37         }
38         
39         int nType = pFormField->GetFieldType();
40         delete pInterForm;
41         return nType;
42 }
43
44 DLLEXPORT FPDF_FORMHANDLE STDCALL FPDFDOC_InitFormFillEnvironment(FPDF_DOCUMENT document, FPDF_FORMFILLINFO* formInfo)
45 {
46         if(!document || !formInfo || formInfo->version!=1)
47                 return NULL;
48         CPDF_Document * pDocument = (CPDF_Document*) document;
49         CPDFDoc_Environment * pEnv = NULL;
50         pEnv = new CPDFDoc_Environment(pDocument);
51         if (!pEnv)
52                 return NULL;
53         pEnv->RegAppHandle(formInfo);
54
55         if(pEnv->GetPDFDocument())
56         {
57                 CPDFSDK_Document* pSDKDoc = new CPDFSDK_Document(pEnv->GetPDFDocument(), pEnv);
58                 if(pSDKDoc)
59                         pEnv->SetCurrentDoc(pSDKDoc);
60         }
61         return pEnv;
62 }
63
64 DLLEXPORT void STDCALL FPDFDOC_ExitFormFillEnvironment(FPDF_FORMHANDLE hHandle)
65 {
66         if(!hHandle)
67                 return; 
68         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
69         if(pSDKDoc)
70         {
71                 ((CPDFDoc_Environment*)hHandle)->SetCurrentDoc(NULL);
72                 delete pSDKDoc;
73         }
74         delete (CPDFDoc_Environment*)hHandle;
75         hHandle = NULL;
76 }
77
78 DLLEXPORT FPDF_BOOL STDCALL FORM_OnMouseMove(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int modifier, double page_x, double page_y)
79 {       
80         if (!hHandle || !page)
81                 return FALSE;
82 //      CPDF_Page * pPage = (CPDF_Page*) page;
83 //      CPDF_Document * pDoc = pPage->m_pDocument;
84 //      CPDFDoc_Environment* pEnv = (CPDFDoc_Environment*)hHandle;
85         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
86         if(!pFXDoc)
87                 return FALSE;
88         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
89         if(!pPageView)
90                 return FALSE;
91         
92 //      double page_x = 0;
93 //      double page_y = 0;
94 //      pEnv->FFI_DeviceToPage(page, point_x, point_y, &page_x, &page_y);
95         CPDF_Point pt((FX_FLOAT)page_x, (FX_FLOAT)page_y);
96         return pPageView->OnMouseMove(pt, modifier);
97 }
98
99 DLLEXPORT FPDF_BOOL STDCALL FORM_OnLButtonDown(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int modifier, double page_x, double page_y)
100 {
101         if (!hHandle || !page)
102                 return FALSE;
103         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
104         if(!pFXDoc)
105                 return FALSE;
106         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
107         if(!pPageView)
108                 return FALSE;
109 //      double page_x = 0;
110 //      double page_y = 0;
111 //      pEnv->FFI_DeviceToPage(page, point_x, point_y, &page_x, &page_y);
112         CPDF_Point pt((FX_FLOAT)page_x, (FX_FLOAT)page_y);
113         return pPageView->OnLButtonDown(pt, modifier);
114 }
115
116 DLLEXPORT FPDF_BOOL STDCALL FORM_OnLButtonUp(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int modifier, double page_x, double page_y)
117 {
118         if (!hHandle || !page)
119                 return FALSE;
120         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
121         if(!pFXDoc)
122                 return FALSE;
123         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
124         if(!pPageView)
125                 return FALSE;
126 //      double page_x = 0;
127 //      double page_y = 0;
128 //      pEnv->FFI_DeviceToPage(page, point_x, point_y, &page_x, &page_y);
129         CPDF_Point pt((FX_FLOAT)page_x, (FX_FLOAT)page_y);
130         return pPageView->OnLButtonUp(pt, modifier);
131 }
132
133 DLLEXPORT FPDF_BOOL STDCALL FORM_OnKeyDown(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int nKeyCode, int modifier)
134 {
135         if (!hHandle || !page)
136                 return FALSE;
137         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
138         if(!pFXDoc)
139                 return FALSE;
140         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
141         if(!pPageView)
142                 return FALSE;
143         
144         
145         return pPageView->OnKeyDown(nKeyCode, modifier);
146 }
147
148 DLLEXPORT FPDF_BOOL STDCALL FORM_OnKeyUp(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int nKeyCode, int modifier)
149 {
150         if (!hHandle || !page)
151                 return FALSE;
152         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
153         if(!pFXDoc)
154                 return FALSE;
155         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
156         if(!pPageView)
157                 return FALSE;
158         
159         
160         return pPageView->OnKeyUp(nKeyCode, modifier);
161 }
162
163
164 DLLEXPORT FPDF_BOOL STDCALL FORM_OnChar(FPDF_FORMHANDLE hHandle, FPDF_PAGE page, int nChar,  int modifier)
165 {
166         if (!hHandle || !page)
167                 return FALSE;
168         CPDFSDK_Document* pFXDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
169         if(!pFXDoc)
170                 return FALSE;
171         CPDFSDK_PageView* pPageView = pFXDoc->GetPageView((CPDF_Page*)page);
172         if(!pPageView)
173                 return FALSE;
174         return pPageView->OnChar(nChar, modifier);
175
176 }
177
178 DLLEXPORT FPDF_BOOL STDCALL FORM_ForceToKillFocus(FPDF_FORMHANDLE hHandle)
179 {
180         if(!hHandle)
181                 return FALSE;
182         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
183         if(!pSDKDoc)
184                 return FALSE;
185         //Kill the current focus. 
186         return pSDKDoc->KillFocusAnnot(0);
187 }
188
189 DLLEXPORT void STDCALL FPDF_FFLDraw(FPDF_FORMHANDLE hHandle, FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, 
190                                                                                                   int size_x, int size_y, int rotate, int flags)
191 {
192         if (!hHandle || !page)
193                 return ;
194         CPDF_Page* pPage = (CPDF_Page*)page;
195         
196         CPDF_RenderOptions options;
197         if (flags & FPDF_LCD_TEXT)
198                 options.m_Flags |= RENDER_CLEARTYPE;
199         else
200                 options.m_Flags &= ~RENDER_CLEARTYPE;
201         
202         //Grayscale output
203         if (flags & FPDF_GRAYSCALE)
204         {
205                 options.m_ColorMode = RENDER_COLOR_GRAY;
206                 options.m_ForeColor = 0;
207                 options.m_BackColor = 0xffffff;
208         }
209
210         options.m_AddFlags = flags >> 8;
211         options.m_pOCContext = new CPDF_OCContext(pPage->m_pDocument);
212
213         CFX_AffineMatrix matrix;
214         pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate); 
215         
216         FX_RECT clip;
217         clip.left = start_x;
218         clip.right = start_x + size_x;
219         clip.top = start_y;
220         clip.bottom = start_y + size_y;
221
222 #ifdef _SKIA_SUPPORT_
223         CFX_SkiaDevice* pDevice = new CFX_SkiaDevice;
224 #else
225         CFX_FxgeDevice* pDevice = new CFX_FxgeDevice;
226 #endif
227         pDevice->Attach((CFX_DIBitmap*)bitmap);
228         pDevice->SaveState();
229         pDevice->SetClip_Rect(&clip);
230
231         CPDF_RenderContext* pContext = new CPDF_RenderContext;
232         CPDFDoc_Environment* pEnv = (CPDFDoc_Environment*)hHandle;
233         CPDFSDK_Document* pFXDoc = pEnv->GetCurrentDoc();
234         if(!pFXDoc)
235         {
236                 delete pContext;
237                 delete pDevice;
238                 pContext = NULL;
239                 pDevice = NULL;
240                 return;
241         }
242         if(CPDFSDK_PageView* pPageView = pFXDoc->GetPageView(pPage))
243         {
244                 pPageView->PageView_OnDraw(pDevice, &matrix, &options);
245         }
246         pDevice->RestoreState();
247
248         if(options.m_pOCContext)
249         {
250                 delete options.m_pOCContext;
251                 options.m_pOCContext = NULL;
252         }
253         if(pContext)
254         {
255                 delete pContext;
256                 pContext = NULL;
257         }
258         if(pDevice)
259         {
260                 delete pDevice;
261                 pDevice = NULL;
262         }
263
264 }
265
266 DLLEXPORT void STDCALL FPDF_SetFormFieldHighlightColor(FPDF_FORMHANDLE hHandle, int fieldType, unsigned long color)
267 {
268         if (!hHandle)
269                 return;
270 //      CPDFDoc_Environment* pEnv = (CPDFDoc_Environment* )hHandle;
271         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
272         if(pSDKDoc)
273         {
274                 if(CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm())
275                 {
276                         pInterForm->SetHighlightColor(color, fieldType);
277                 }
278         
279         }
280
281 }
282
283 DLLEXPORT void STDCALL FPDF_SetFormFieldHighlightAlpha(FPDF_FORMHANDLE hHandle, unsigned char alpha)
284 {
285         if (!hHandle)
286                 return;
287         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
288         if(pSDKDoc)
289         {
290                 if(CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm())
291                         pInterForm->SetHighlightAlpha(alpha);
292         }
293 }
294
295 DLLEXPORT void STDCALL FPDF_RemoveFormFieldHighlight(FPDF_FORMHANDLE hHandle)
296 {
297         if (!hHandle)
298                 return;
299         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
300         if(pSDKDoc)
301         {
302                 if(CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm())
303                         pInterForm->RemoveAllHighLight();
304         }
305 }
306
307 DLLEXPORT void STDCALL FORM_OnAfterLoadPage(FPDF_PAGE page, FPDF_FORMHANDLE hHandle)
308 {
309         if(!hHandle || !page)
310                 return;
311         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
312         if(!pSDKDoc)
313                 return;
314         CPDF_Page* pPage = (CPDF_Page*)page;
315         CPDFSDK_PageView* pPageView = pSDKDoc->GetPageView(pPage, TRUE);
316         if(pPageView)
317         {
318                 pPageView->SetValid(TRUE);
319         }       
320 }
321
322 DLLEXPORT void STDCALL FORM_OnBeforeClosePage(FPDF_PAGE page, FPDF_FORMHANDLE hHandle)
323 {
324         if(!hHandle || !page)
325                 return;
326         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
327         CPDF_Page* pPage = (CPDF_Page*)page;
328         CPDFSDK_PageView* pPageView = pSDKDoc->GetPageView(pPage, FALSE);
329         if(pPageView)
330         {
331                 pPageView->SetValid(FALSE);
332                 // ReMovePageView() takes care of the delete for us.
333                 pSDKDoc->ReMovePageView(pPage);
334         }
335 }
336 DLLEXPORT void STDCALL FORM_DoDocumentJSAction(FPDF_FORMHANDLE hHandle)
337 {
338         if(!hHandle)
339                 return;
340         if( CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc())
341         {
342                 pSDKDoc->InitPageView();
343                 if(((CPDFDoc_Environment*)hHandle)->IsJSInitiated())
344                         pSDKDoc->ProcJavascriptFun();
345         }       
346 }
347
348 DLLEXPORT void STDCALL FORM_DoDocumentOpenAction(FPDF_FORMHANDLE hHandle)
349 {
350         if(!hHandle)
351                 return;
352         if( CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc())
353         {
354                 if(((CPDFDoc_Environment*)hHandle)->IsJSInitiated())
355                         pSDKDoc->ProcOpenAction();
356         }
357 }
358 DLLEXPORT void STDCALL FORM_DoDocumentAAction(FPDF_FORMHANDLE hHandle, int aaType)
359 {
360         if(!hHandle)
361                 return;
362         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
363         if(pSDKDoc)
364         {
365                 CPDF_Document* pDoc = pSDKDoc->GetDocument();
366                 CPDF_Dictionary* pDic = pDoc->GetRoot();
367                 if (!pDic)
368                         return;
369                 CPDF_AAction aa = pDic->GetDict(FX_BSTRC("AA"));
370                 
371                 if(aa.ActionExist((CPDF_AAction::AActionType)aaType))
372                 {
373                         CPDF_Action action = aa.GetAction((CPDF_AAction::AActionType)aaType);
374                         CPDFSDK_ActionHandler *pActionHandler = ((CPDFDoc_Environment*)hHandle)->GetActionHander();
375                         ASSERT(pActionHandler != NULL);
376                         pActionHandler->DoAction_Document(action, (CPDF_AAction::AActionType)aaType, pSDKDoc);
377                 }
378         }
379 }
380 DLLEXPORT void STDCALL FORM_DoPageAAction(FPDF_PAGE page, FPDF_FORMHANDLE hHandle, int aaType)
381 {
382         if(!hHandle || !page)
383                 return;
384         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
385         CPDF_Page* pPage = (CPDF_Page*)page;
386         CPDFSDK_PageView* pPageView = pSDKDoc->GetPageView(pPage, FALSE);
387         if(pPageView)
388         {
389                 CPDFDoc_Environment *pEnv = pSDKDoc->GetEnv();
390                 ASSERT(pEnv != NULL);
391                         
392                 CPDFSDK_ActionHandler *pActionHandler = pEnv->GetActionHander();
393                 ASSERT(pActionHandler != NULL);
394                 
395                 CPDF_Dictionary *pPageDict = pPage->m_pFormDict;
396                 ASSERT(pPageDict != NULL);
397                  
398                 CPDF_AAction aa = pPageDict->GetDict(FX_BSTRC("AA"));
399
400                 FX_BOOL bExistOAAction = FALSE;
401                 FX_BOOL bExistCAAction = FALSE;
402                 if (FPDFPAGE_AACTION_OPEN == aaType)
403                 {
404                         bExistOAAction = aa.ActionExist(CPDF_AAction::OpenPage);
405                         if (bExistOAAction)
406                         {
407                                 CPDF_Action action = aa.GetAction(CPDF_AAction::OpenPage);
408                                 pActionHandler->DoAction_Page(action, CPDF_AAction::OpenPage, pSDKDoc);
409                         }
410                 }
411                 else
412                 {
413                         bExistCAAction = aa.ActionExist(CPDF_AAction::ClosePage);
414                         if (bExistCAAction)
415                         {
416                                 CPDF_Action action = aa.GetAction(CPDF_AAction::ClosePage);
417                                 pActionHandler->DoAction_Page(action, CPDF_AAction::ClosePage, pSDKDoc);
418                         }
419                 }
420         }
421 }
422
423