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authorraymes@chromium.org <raymes@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-05-16 18:03:57 +0000
committerraymes@chromium.org <raymes@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-05-16 18:03:57 +0000
commit7e3461079b02605faf2a1e767bfad03bb5e8eaf1 (patch)
tree951e1edba29f6461f74cfb6564383e6183148d3f /webkit/plugins/ppapi/v8_var_converter.h
parent05893fabc7515cb9fc253ef5a9822d3325e6d344 (diff)
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Implement a V8 value<->PP_Var converter
NOTE: This patch is being relanded after it was reverted in 199944 due to a unittest breakage, fixed by 200279. This implements a converter for transforming between V8 values and PP_Vars. This is needed to support transferring arrays/dictionaries (or arrays/objects in javascript) to and from the plugin using the pepper Post/HandleMessage APIs. The entire object graph is converted in the process. TBR=dmichael@chromium.org BUG=236958 Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=199938 Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=200283 Review URL: https://codereview.chromium.org/14424006 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@200578 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'webkit/plugins/ppapi/v8_var_converter.h')
-rw-r--r--webkit/plugins/ppapi/v8_var_converter.h41
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diff --git a/webkit/plugins/ppapi/v8_var_converter.h b/webkit/plugins/ppapi/v8_var_converter.h
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+// Copyright (c) 2013 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 WEBKIT_PLUGINS_PPAPI_V8_VAR_CONVERTER_H
+#define WEBKIT_PLUGINS_PPAPI_V8_VAR_CONVERTER_H
+
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ppapi/c/pp_var.h"
+#include "v8/include/v8.h"
+#include "webkit/plugins/webkit_plugins_export.h"
+
+namespace webkit {
+namespace ppapi {
+
+// Class to convert between PP_Vars and V8 values.
+class WEBKIT_PLUGINS_EXPORT V8VarConverter {
+ public:
+ V8VarConverter();
+
+ // Converts the given PP_Var to a v8::Value. True is returned upon success.
+ bool ToV8Value(const PP_Var& var,
+ v8::Handle<v8::Context> context,
+ v8::Handle<v8::Value>* result) const;
+ // Converts the given v8::Value to a PP_Var. True is returned upon success.
+ // Every PP_Var in the reference graph of which |result| is apart will have
+ // a refcount equal to the number of references to it in the graph. |result|
+ // will have one additional reference.
+ bool FromV8Value(v8::Handle<v8::Value> val,
+ v8::Handle<v8::Context> context,
+ PP_Var* result) const;
+
+ DISALLOW_COPY_AND_ASSIGN(V8VarConverter);
+};
+
+} // namespace ppapi
+} // namespace webkit
+
+#endif // WEBKIT_PLUGINS_PPAPI_V8_VAR_CONVERTER_H