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// Copyright (c) 2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_RENDERER_GREASEMONKEY_SLAVE_H__
#define CHROME_RENDERER_GREASEMONKEY_SLAVE_H__
#include <vector>
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/string_piece.h"
#include "webkit/glue/webframe.h"
// Parsed representation of a Greasemonkey script.
class GreasemonkeyScript {
public:
// TODO(aa): Pass in filename script came from, for errors. Needs to be in
// shared memory.
GreasemonkeyScript() {}
const StringPiece& GetBody() const {
return body_;
}
bool Parse(const StringPiece& script_text) {
// TODO(aa): Parse out includes, convert to regexes.
body_ = script_text;
return true;
}
private:
// References the body of the script in shared memory. The underlying memory
// is valid until shared_memory_ is either deleted or Unmap()'d.
StringPiece body_;
};
// Manages installed GreasemonkeyScripts for a render process.
class GreasemonkeySlave {
public:
GreasemonkeySlave();
// Update the parsed scripts from shared memory.
bool UpdateScripts(SharedMemoryHandle shared_memory);
// Inject the appropriate scripts into a frame based on its URL.
// TODO(aa): Extract a GreasemonkeyFrame interface out of this to improve
// testability.
bool InjectScripts(WebFrame* frame);
private:
// Shared memory containing raw script data.
scoped_ptr<SharedMemory> shared_memory_;
// Parsed script data.
std::vector<GreasemonkeyScript> scripts_;
DISALLOW_COPY_AND_ASSIGN(GreasemonkeySlave);
};
#endif // CHROME_RENDERER_GREASEMONKEY_SLAVE_H__
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