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      1 // Copyright 2017 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 #ifndef PUBLIC_CPP_FPDF_DELETERS_H_
      6 #define PUBLIC_CPP_FPDF_DELETERS_H_
      7 
      8 #include "public/fpdf_dataavail.h"
      9 #include "public/fpdf_edit.h"
     10 #include "public/fpdf_formfill.h"
     11 #include "public/fpdf_structtree.h"
     12 #include "public/fpdf_text.h"
     13 #include "public/fpdfview.h"
     14 
     15 // Custom deleters for using FPDF_* types with std::unique_ptr<>.
     16 
     17 struct FPDFAvailDeleter {
     18   inline void operator()(FPDF_AVAIL avail) { FPDFAvail_Destroy(avail); }
     19 };
     20 
     21 struct FPDFBitmapDeleter {
     22   inline void operator()(FPDF_BITMAP bitmap) { FPDFBitmap_Destroy(bitmap); }
     23 };
     24 
     25 struct FPDFDocumentDeleter {
     26   inline void operator()(FPDF_DOCUMENT doc) { FPDF_CloseDocument(doc); }
     27 };
     28 
     29 struct FPDFFormHandleDeleter {
     30   inline void operator()(FPDF_FORMHANDLE form) {
     31     FPDFDOC_ExitFormFillEnvironment(form);
     32   }
     33 };
     34 
     35 struct FPDFTextPageDeleter {
     36   inline void operator()(FPDF_TEXTPAGE text) { FPDFText_ClosePage(text); }
     37 };
     38 
     39 struct FPDFPageDeleter {
     40   inline void operator()(FPDF_PAGE page) { FPDF_ClosePage(page); }
     41 };
     42 
     43 struct FPDFStructTreeDeleter {
     44   inline void operator()(FPDF_STRUCTTREE tree) { FPDF_StructTree_Close(tree); }
     45 };
     46 
     47 struct FPDFFontDeleter {
     48   inline void operator()(FPDF_FONT font) { FPDFFont_Close(font); }
     49 };
     50 
     51 #endif  // PUBLIC_CPP_FPDF_DELETERS_H_
     52