webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 78 insertions, 0 deletions

diff --git a/Source/WebCore/contentextensions/ContentExtensionsBackend.h b/Source/WebCore/contentextensions/ContentExtensionsBackend.h
new file mode 100644
index 000000000..f15ff8c43
--- /dev/null
+++ b/Source/WebCore/contentextensions/ContentExtensionsBackend.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2014, 2015 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+ */
+
+#pragma once
+
+#if ENABLE(CONTENT_EXTENSIONS)
+
+#include "ContentExtension.h"
+#include "ContentExtensionRule.h"
+#include <wtf/HashMap.h>
+#include <wtf/text/StringHash.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+class DocumentLoader;
+class ResourceRequest;
+class URL;
+
+struct ResourceLoadInfo;
+
+namespace ContentExtensions {
+
+class CompiledContentExtension;
+
+// The ContentExtensionsBackend is the internal model of all the content extensions.
+//
+// It provides two services:
+// 1) It stores the rules for each content extension.
+// 2) It provides APIs for the WebCore interfaces to use those rules efficiently.
+class ContentExtensionsBackend {
+public:
+    // - Rule management interface. This can be used by upper layer.
+
+    // Set a list of rules for a given name. If there were existing rules for the name, they are overriden.
+    // The identifier cannot be empty.
+    WEBCORE_EXPORT void addContentExtension(const String& identifier, RefPtr<CompiledContentExtension>);
+    WEBCORE_EXPORT void removeContentExtension(const String& identifier);
+    WEBCORE_EXPORT void removeAllContentExtensions();
+
+    // - Internal WebCore Interface.
+    WEBCORE_EXPORT Vector<Action> actionsForResourceLoad(const ResourceLoadInfo&) const;
+    WEBCORE_EXPORT StyleSheetContents* globalDisplayNoneStyleSheet(const String& identifier) const;
+
+    BlockedStatus processContentExtensionRulesForLoad(const URL&, ResourceType, DocumentLoader& initiatingDocumentLoader);
+
+    static const String& displayNoneCSSRule();
+
+private:
+    HashMap<String, RefPtr<ContentExtension>> m_contentExtensions;
+};
+
+} // namespace ContentExtensions
+} // namespace WebCore
+
+#endif // ENABLE(CONTENT_EXTENSIONS)