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