ppapi/shared_impl/array_var.h

   1 // Copyright (c) 2013 The Chromium 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 PPAPI_SHARED_IMPL_ARRAY_VAR_H_
   6 #define PPAPI_SHARED_IMPL_ARRAY_VAR_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "ppapi/c/pp_var.h"
  13 #include "ppapi/shared_impl/ppapi_shared_export.h"
  14 #include "ppapi/shared_impl/scoped_pp_var.h"
  15 #include "ppapi/shared_impl/var.h"
  16
  17 namespace ppapi {
  18
  19 class PPAPI_SHARED_EXPORT ArrayVar : public Var {
  20  public:
  21   typedef std::vector<ScopedPPVar> ElementVector;
  22
  23   ArrayVar();
  24
  25   // Helper function that converts a PP_Var to an ArrayVar. This will return
  26   // NULL if the PP_Var is not of type PP_VARTYPE_ARRAY or the array cannot be
  27   // found from the var tracker.
  28   static ArrayVar* FromPPVar(const PP_Var& var);
  29
  30   // Var overrides.
  31   virtual ArrayVar* AsArrayVar() override;
  32   virtual PP_VarType GetType() const override;
  33
  34   // The returned PP_Var has had a ref added on behalf of the caller.
  35   PP_Var Get(uint32_t index) const;
  36   PP_Bool Set(uint32_t index, const PP_Var& value);
  37   uint32_t GetLength() const;
  38   PP_Bool SetLength(uint32_t length);
  39
  40   const ElementVector& elements() const { return elements_; }
  41
  42   ElementVector& elements() { return elements_; }
  43
  44  protected:
  45   virtual ~ArrayVar();
  46
  47  private:
  48   ElementVector elements_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ArrayVar);
  51 };
  52
  53 }  // namespace ppapi
  54
  55 #endif  // PPAPI_SHARED_IMPL_ARRAY_VAR_H_