extensions/renderer/script_context_set_iterable.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_RENDERER_SCRIPT_CONTEXT_SET_ITERABLE_H_
#define EXTENSIONS_RENDERER_SCRIPT_CONTEXT_SET_ITERABLE_H_

#include "base/functional/callback_forward.h"

namespace content {
class RenderFrame;
}  // namespace content

namespace extensions {
class ScriptContext;
namespace mojom {
class HostID;
}  // namespace mojom

// Iterable base class to iterate over a ScriptContextSet.
class ScriptContextSetIterable {
 public:
  // Synchronously runs `callback` with each ScriptContext that belongs to
  // `host_id` in `render_frame`.
  //
  // An empty |host_id.id| will match all extensions, and a null
  // `render_frame` will match all render views, but try to use the inline
  // variants of these methods instead.
  virtual void ForEach(
      const mojom::HostID& host_id,
      content::RenderFrame* render_frame,
      const base::RepeatingCallback<void(ScriptContext*)>& callback) = 0;

  // ForEach which matches all extensions.
  void ForEach(content::RenderFrame* render_frame,
               const base::RepeatingCallback<void(ScriptContext*)>& callback);

  // ForEach which matches all render views.
  void ForEach(const mojom::HostID& host_id,
               const base::RepeatingCallback<void(ScriptContext*)>& callback);

  virtual ~ScriptContextSetIterable() {}
};

}  // namespace extensions

#endif  // EXTENSIONS_RENDERER_SCRIPT_CONTEXT_SET_ITERABLE_H_