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| author | brettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-11-01 16:16:50 +0000 |
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| committer | brettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-11-01 16:16:50 +0000 |
| commit | 1758e88fd909ea0ffd49621e8066ffad5627ffdf (patch) | |
| tree | c304a5eed047cae5665f5af1739d84655fb5815d /ppapi/cpp/module_impl.h | |
| parent | e7d8b51953b7d3b2b8a0aba46132305b32f3efce (diff) | |
| download | chromium_src-1758e88fd909ea0ffd49621e8066ffad5627ffdf.zip chromium_src-1758e88fd909ea0ffd49621e8066ffad5627ffdf.tar.gz chromium_src-1758e88fd909ea0ffd49621e8066ffad5627ffdf.tar.bz2 | |
Move PPAPI into the Chrome repo. The old repo was
http://ppapi.googlecode.com/
TEST=none
BUG=none
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64613 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'ppapi/cpp/module_impl.h')
| -rw-r--r-- | ppapi/cpp/module_impl.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/ppapi/cpp/module_impl.h b/ppapi/cpp/module_impl.h new file mode 100644 index 0000000..9cde170 --- /dev/null +++ b/ppapi/cpp/module_impl.h @@ -0,0 +1,41 @@ +// Copyright (c) 2010 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef PPAPI_CPP_MODULE_IMPL_H_ +#define PPAPI_CPP_MODULE_IMPL_H_ + +#include "ppapi/cpp/module.h" + +namespace { + +template <typename T> class DeviceFuncs { + public: + explicit DeviceFuncs(const char* ifname) : ifname_(ifname), funcs_(NULL) {} + + operator T const*() { + if (!funcs_) { + funcs_ = reinterpret_cast<T const*>( + pp::Module::Get()->GetBrowserInterface(ifname_)); + } + return funcs_; + } + + // This version doesn't check for existence of the function object. It is + // used so that, for DeviceFuncs f, the expression: + // if (f) f->doSomething(); + // checks the existence only once. + T const* operator->() const { return funcs_; } + + private: + DeviceFuncs(const DeviceFuncs&other); + DeviceFuncs &operator=(const DeviceFuncs &other); + + const char* ifname_; + T const* funcs_; +}; + +} // namespace + +#endif // PPAPI_CPP_MODULE_IMPL_H_ + |