From cad810f21b803229eb11403f9209855525a25d57 Mon Sep 17 00:00:00 2001
From: Steve Block <steveblock@google.com>
Date: Fri, 6 May 2011 11:45:16 +0100
Subject: Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
---
 Source/WebCore/loader/cache/CachedScript.cpp | 124 +++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 Source/WebCore/loader/cache/CachedScript.cpp

(limited to 'Source/WebCore/loader/cache/CachedScript.cpp')

diff --git a/Source/WebCore/loader/cache/CachedScript.cpp b/Source/WebCore/loader/cache/CachedScript.cpp
new file mode 100644
index 0000000..54b4503
--- /dev/null
+++ b/Source/WebCore/loader/cache/CachedScript.cpp
@@ -0,0 +1,124 @@
+/*
+    Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
+    Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
+    Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
+    Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
+    Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+
+    This class provides all functionality needed for loading images, style sheets and html
+    pages from the web. It has a memory cache for these objects.
+*/
+
+#include "config.h"
+#include "CachedScript.h"
+
+#include "MemoryCache.h"
+#include "CachedResourceClient.h"
+#include "CachedResourceClientWalker.h"
+#include "SharedBuffer.h"
+#include "TextResourceDecoder.h"
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+CachedScript::CachedScript(const String& url, const String& charset)
+    : CachedResource(url, Script)
+    , m_decoder(TextResourceDecoder::create("application/javascript", charset))
+    , m_decodedDataDeletionTimer(this, &CachedScript::decodedDataDeletionTimerFired)
+{
+    // It's javascript we want.
+    // But some websites think their scripts are <some wrong mimetype here>
+    // and refuse to serve them if we only accept application/x-javascript.
+    setAccept("*/*");
+}
+
+CachedScript::~CachedScript()
+{
+}
+
+void CachedScript::allClientsRemoved()
+{
+    m_decodedDataDeletionTimer.startOneShot(0);
+}
+
+void CachedScript::setEncoding(const String& chs)
+{
+    m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
+}
+
+String CachedScript::encoding() const
+{
+    return m_decoder->encoding().name();
+}
+
+const String& CachedScript::script()
+{
+    ASSERT(!isPurgeable());
+
+    if (!m_script && m_data) {
+        m_script = m_decoder->decode(m_data->data(), encodedSize());
+        m_script += m_decoder->flush();
+        setDecodedSize(m_script.length() * sizeof(UChar));
+    }
+    m_decodedDataDeletionTimer.startOneShot(0);
+    return m_script;
+}
+
+void CachedScript::data(PassRefPtr<SharedBuffer> data, bool allDataReceived)
+{
+    if (!allDataReceived)
+        return;
+
+    m_data = data;
+    setEncodedSize(m_data.get() ? m_data->size() : 0);
+    setLoading(false);
+    checkNotify();
+}
+
+void CachedScript::checkNotify()
+{
+    if (isLoading())
+        return;
+
+    CachedResourceClientWalker w(m_clients);
+    while (CachedResourceClient* c = w.next())
+        c->notifyFinished(this);
+}
+
+void CachedScript::error(CachedResource::Status status)
+{
+    setStatus(status);
+    ASSERT(errorOccurred());
+    setLoading(false);
+    checkNotify();
+}
+
+void CachedScript::destroyDecodedData()
+{
+    m_script = String();
+    setDecodedSize(0);
+    if (!MemoryCache::shouldMakeResourcePurgeableOnEviction() && isSafeToMakePurgeable())
+        makePurgeable(true);
+}
+
+void CachedScript::decodedDataDeletionTimerFired(Timer<CachedScript>*)
+{
+    destroyDecodedData();
+}
+
+} // namespace WebCore
-- 
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