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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "bindings/core/v8/V8History.h"
     33 
     34 #include "bindings/core/v8/ExceptionState.h"
     35 #include "bindings/core/v8/SerializedScriptValue.h"
     36 #include "bindings/core/v8/V8Binding.h"
     37 #include "bindings/core/v8/V8HiddenValue.h"
     38 #include "bindings/core/v8/V8Window.h"
     39 #include "core/dom/ExceptionCode.h"
     40 #include "core/frame/History.h"
     41 
     42 namespace blink {
     43 
     44 void V8History::stateAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
     45 {
     46     History* history = V8History::toImpl(info.Holder());
     47 
     48     v8::Handle<v8::Value> value = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
     49 
     50     if (!value.IsEmpty() && !history->stateChanged()) {
     51         v8SetReturnValue(info, value);
     52         return;
     53     }
     54 
     55     RefPtr<SerializedScriptValue> serialized = history->state();
     56     value = serialized ? serialized->deserialize(info.GetIsolate()) : v8::Handle<v8::Value>(v8::Null(info.GetIsolate()));
     57     V8HiddenValue::setHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()), value);
     58 
     59     v8SetReturnValue(info, value);
     60 }
     61 
     62 void V8History::pushStateMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     63 {
     64     ExceptionState exceptionState(ExceptionState::ExecutionContext, "pushState", "History", info.Holder(), info.GetIsolate());
     65     RefPtr<SerializedScriptValue> historyState = SerializedScriptValue::create(info[0], 0, 0, exceptionState, info.GetIsolate());
     66     if (exceptionState.throwIfNeeded())
     67         return;
     68 
     69     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, title, info[1]);
     70     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, url, info[2]);
     71 
     72     History* history = V8History::toImpl(info.Holder());
     73     history->stateObjectAdded(historyState.release(), title, url, FrameLoadTypeStandard, exceptionState);
     74     V8HiddenValue::deleteHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
     75     exceptionState.throwIfNeeded();
     76 }
     77 
     78 void V8History::replaceStateMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     79 {
     80     ExceptionState exceptionState(ExceptionState::ExecutionContext, "replaceState", "History", info.Holder(), info.GetIsolate());
     81     RefPtr<SerializedScriptValue> historyState = SerializedScriptValue::create(info[0], 0, 0, exceptionState, info.GetIsolate());
     82     if (exceptionState.throwIfNeeded())
     83         return;
     84 
     85     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, title, info[1]);
     86     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, url, info[2]);
     87 
     88     History* history = V8History::toImpl(info.Holder());
     89     history->stateObjectAdded(historyState.release(), title, url, FrameLoadTypeRedirectWithLockedBackForwardList, exceptionState);
     90     V8HiddenValue::deleteHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
     91     exceptionState.throwIfNeeded();
     92 }
     93 
     94 } // namespace blink
     95