chromium/chrome/browser/ui/views/autofill/popup/custom_cursor_suppressor.h

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_UI_VIEWS_AUTOFILL_POPUP_CUSTOM_CURSOR_SUPPRESSOR_H_
#define CHROME_BROWSER_UI_VIEWS_AUTOFILL_POPUP_CUSTOM_CURSOR_SUPPRESSOR_H_

#include <map>
#include <memory>
#include <vector>

#include "base/functional/callback_helpers.h"
#include "base/scoped_multi_source_observation.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_list_observer.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents_observer.h"
#include "extensions/browser/extension_host_registry.h"

namespace content {
class BrowserContext;
class WebContents;
}  // namespace content

namespace extensions {
class ExtensionHost;
}  // namespace extensions

// While active, this class suppresses custom cursors exceeding a given size
// limit on all the active `WebContents` or all `Browser`s of the current
// profile.
// Note that `CustomCursorSuppressor` is expected to have a short lifetime, e.g.
// while an Autofill popup is showing - therefore it does not clean up (safe,
// but stale) observation entries related to `RenderFrameHost`s of previous
// navigations or of `WebContents` that are no longer active.
// Should the class become used in a wider context, additional logic to remove
// such stale entries should be added.
class CustomCursorSuppressor
    : public BrowserListObserver,
      public TabStripModelObserver,
      public extensions::ExtensionHostRegistry::Observer { … };

#endif  // CHROME_BROWSER_UI_VIEWS_AUTOFILL_POPUP_CUSTOM_CURSOR_SUPPRESSOR_H_