Remove support for NPObjects.

third_party/WebKit/Source/bindings/core/v8/V8NPUtils.cpp

-/*
- * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "bindings/core/v8/V8NPUtils.h"
-
-#include "bindings/core/v8/NPV8Object.h"
-#include "bindings/core/v8/V8Binding.h"
-#include "bindings/core/v8/V8NPObject.h"
-#include "bindings/core/v8/npruntime_impl.h"
-#include "bindings/core/v8/npruntime_priv.h"
-#include "core/frame/LocalDOMWindow.h"
-#include "wtf/text/WTFString.h"
-
-#include <stdlib.h>
-
-namespace blink {
-
-void convertV8ObjectToNPVariant(v8::Isolate* isolate, v8::Local<v8::Value> object, NPObject* owner, NPVariant* result)
-{
-    VOID_TO_NPVARIANT(*result);
-
-    // It is really the caller's responsibility to deal with the empty handle case because there could be different actions to
-    // take in different contexts.
-    ASSERT(!object.IsEmpty());
-
-    if (object.IsEmpty())
-        return;
-
-    if (object->IsNumber()) {
-        DOUBLE_TO_NPVARIANT(object.As<v8::Number>()->Value(), *result);
-    } else if (object->IsBoolean()) {
-        BOOLEAN_TO_NPVARIANT(object.As<v8::Boolean>()->Value(), *result);
-    } else if (object->IsNull()) {
-        NULL_TO_NPVARIANT(*result);
-    } else if (object->IsUndefined()) {
-        VOID_TO_NPVARIANT(*result);
-    } else if (object->IsString()) {
-        v8::Local<v8::String> str = object.As<v8::String>();
-        int length = str->Utf8Length() + 1;
-        char* utf8Chars = reinterpret_cast<char*>(malloc(length));
-        str->WriteUtf8(utf8Chars, length, 0, v8::String::HINT_MANY_WRITES_EXPECTED);
-        STRINGN_TO_NPVARIANT(utf8Chars, length-1, *result);
-    } else if (object->IsObject()) {
-        LocalDOMWindow* window = currentDOMWindow(isolate);
-        NPObject* npobject = npCreateV8ScriptObject(isolate, 0, v8::Local<v8::Object>::Cast(object), window);
-        if (npobject)
-            _NPN_RegisterObject(npobject, owner);
-        OBJECT_TO_NPVARIANT(npobject, *result);
-    }
-}
-
-v8::Local<v8::Value> convertNPVariantToV8Object(v8::Isolate* isolate, const NPVariant* variant, NPObject* owner)
-{
-    NPVariantType type = variant->type;
-
-    switch (type) {
-    case NPVariantType_Int32:
-        return v8::Integer::New(isolate, NPVARIANT_TO_INT32(*variant));
-    case NPVariantType_Double:
-        return v8::Number::New(isolate, NPVARIANT_TO_DOUBLE(*variant));
-    case NPVariantType_Bool:
-        return v8Boolean(NPVARIANT_TO_BOOLEAN(*variant), isolate);
-    case NPVariantType_Null:
-        return v8::Null(isolate);
-    case NPVariantType_Void:
-        return v8::Undefined(isolate);
-    case NPVariantType_String: {
-        NPString src = NPVARIANT_TO_STRING(*variant);
-        return v8AtomicString(isolate, src.UTF8Characters, src.UTF8Length);
-    }
-    case NPVariantType_Object: {
-        NPObject* object = NPVARIANT_TO_OBJECT(*variant);
-        if (V8NPObject* v8Object = npObjectToV8NPObject(object))
-            return v8::Local<v8::Object>::New(isolate, v8Object->v8Object);
-        return createV8ObjectForNPObject(isolate, object, owner);
-    }
-    default:
-        return v8::Undefined(isolate);
-    }
-}
-
-// Helper function to create an NPN String Identifier from a v8 string.
-NPIdentifier getStringIdentifier(v8::Local<v8::String> str)
-{
-    const int kStackBufferSize = 100;
-
-    int bufferLength = str->Utf8Length() + 1;
-    if (bufferLength <= kStackBufferSize) {
-        // Use local stack buffer to avoid heap allocations for small strings. Here we should only use the stack space for
-        // stackBuffer when it's used, not when we use the heap.
-        //
-        // WriteUtf8 is guaranteed to generate a null-terminated string because bufferLength is constructed to be one greater
-        // than the string length.
-        char stackBuffer[kStackBufferSize];
-        str->WriteUtf8(stackBuffer, bufferLength);
-        return _NPN_GetStringIdentifier(stackBuffer);
-    }
-
-    v8::String::Utf8Value utf8(str);
-    return _NPN_GetStringIdentifier(*utf8);
-}
-
-} // namespace blink