1 files changed, 94 insertions, 0 deletions
diff --git a/WebCore/bindings/js/ScriptCachedFrameData.cpp b/WebCore/bindings/js/ScriptCachedFrameData.cpp
new file mode 100644
index 0000000..955a368
--- /dev/null
+++ b/WebCore/bindings/js/ScriptCachedFrameData.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2008, Google Inc. All rights reserved.
+ * Copyright (C) 2008 Apple 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 "config.h"
+#include "ScriptCachedFrameData.h"
+
+#include "Frame.h"
+#include "GCController.h"
+#include "Page.h"
+#include "PageGroup.h"
+#include <runtime/JSLock.h>
+#include "ScriptController.h"
+
+using namespace JSC;
+
+namespace WebCore {
+
+ScriptCachedFrameData::ScriptCachedFrameData(Frame* frame)
+{
+    JSLock lock(false);
+
+    ScriptController* scriptController = frame->script();
+    if (scriptController->haveWindowShell()) {
+        m_window = scriptController->windowShell()->window();
+    }
+}
+
+DOMWindow* ScriptCachedFrameData::domWindow() const {
+    return m_window ? m_window->impl() : 0;
+}
+
+ScriptCachedFrameData::~ScriptCachedFrameData()
+{
+    clear();
+}
+
+void ScriptCachedFrameData::restore(Frame* frame)
+{
+    Page* page = frame->page();
+
+    JSLock lock(false);
+
+    ScriptController* scriptController = frame->script();
+    if (scriptController->haveWindowShell()) {
+        JSDOMWindowShell* windowShell = scriptController->windowShell();
+        if (m_window) {
+            windowShell->setWindow(m_window.get());
+        } else {
+            windowShell->setWindow(frame->domWindow());
+            scriptController->attachDebugger(page->debugger());
+            windowShell->window()->setProfileGroup(page->group().identifier());
+        }
+    }
+}
+
+void ScriptCachedFrameData::clear()
+{
+    JSLock lock(false);
+
+    if (!m_window) {
+        m_window = 0;
+        gcController().garbageCollectSoon();
+    }
+}
+
+} // namespace WebCore