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// 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_TABS_ORGANIZATION_TRIGGER_OBSERVER_H_
#define CHROME_BROWSER_UI_TABS_ORGANIZATION_TRIGGER_OBSERVER_H_
#include <memory>
#include <unordered_map>
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/ui/browser_list_observer.h"
#include "chrome/browser/ui/tabs/organization/trigger.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
class TabStripModel;
class TabOrganizationTrigger;
namespace content {
class BrowserContext;
}
// Gets inputs for triggering, runs triggering logic when anything changes.
class TabOrganizationTriggerObserver : public BrowserListObserver,
TabStripModelObserver {
public:
explicit TabOrganizationTriggerObserver(
base::RepeatingCallback<void(const Browser*)> on_trigger,
content::BrowserContext* browser_context,
std::unique_ptr<TabOrganizationTrigger> trigger_logic);
~TabOrganizationTriggerObserver() override;
// BrowserListObserver:
void OnBrowserAdded(Browser* browser) override;
void OnBrowserRemoved(Browser* browser) override;
// TabStripModelObserver:
void OnTabStripModelChanged(
TabStripModel* tab_strip_model,
const TabStripModelChange& change,
const TabStripSelectionChange& selection) override;
private:
Browser* BrowserForTabStripModel(TabStripModel* tab_strip_model) const;
void EvaluateTrigger(base::WeakPtr<Browser> browser);
std::unique_ptr<TabOrganizationTrigger> trigger_logic_;
base::RepeatingCallback<void(const Browser*)> on_trigger_;
raw_ptr<content::BrowserContext> browser_context_;
std::unordered_map<TabStripModel*, raw_ptr<Browser>>
tab_strip_model_to_browser_map_;
// Whether trigger evaluation is scheduled. Used to debounce
// TabStripModelObserver events.
bool pending_eval_ = false;
base::WeakPtrFactory<TabOrganizationTriggerObserver> weak_ptr_factory_{this};
};
#endif // CHROME_BROWSER_UI_TABS_ORGANIZATION_TRIGGER_OBSERVER_H_
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