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// Copyright 2025 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_ANDROID_TAB_MODEL_TAB_COLLECTION_TAB_MODEL_IMPL_H_
#define CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_COLLECTION_TAB_MODEL_IMPL_H_
#include <memory>
#include <optional>
#include "base/android/jni_weak_ref.h"
#include "base/memory/raw_ptr.h"
class Profile;
namespace tab_groups {
class TabGroupId;
} // namespace tab_groups
namespace tabs {
class TabStripCollection;
// The C++ portion of TabCollectionTabModelImpl.java. Note this is intentionally
// a different entity from TabModelJniBridge as that class is shared between the
// non-tab collection and tab collection implementations. In future, after tab
// launches, it may be prudent to merge the C++ objects.
class TabCollectionTabModelImpl {
public:
TabCollectionTabModelImpl(JNIEnv* env,
const jni_zero::JavaRef<jobject>& java_object,
Profile* profile);
~TabCollectionTabModelImpl();
// Called by Java to destroy this object. Do not call directly in C++.
void Destroy(JNIEnv* env);
TabCollectionTabModelImpl(const TabCollectionTabModelImpl&) = delete;
TabCollectionTabModelImpl& operator=(const TabCollectionTabModelImpl&) =
delete;
// Returns the total number of tabs in the collection, including
// sub-collections.
int GetTabCountRecursive(JNIEnv* env) const;
// Returns the recursive index of the given tab, or -1 if not found.
int GetIndexOfTabRecursive(
JNIEnv* env,
const jni_zero::JavaParamRef<jobject>& j_tab_android) const;
// Recurses until reaching the given index. Returns null if not found.
base::android::ScopedJavaLocalRef<jobject> GetTabAtIndexRecursive(
JNIEnv* env,
size_t index) const;
// Adds a tab to the tab model.
void AddTabRecursive(JNIEnv* env,
const jni_zero::JavaParamRef<jobject>& j_tab_android,
size_t index,
const jni_zero::JavaParamRef<jobject>& j_tab_group_id,
bool is_pinned);
private:
// Returns a safe index for adding or moving a single tab without it changing
// state.
size_t GetSafeIndex(size_t proposed_index,
const std::optional<tab_groups::TabGroupId>& tab_group_id,
bool is_pinned) const;
std::optional<tab_groups::TabGroupId> GetGroupIdAt(size_t index) const;
JavaObjectWeakGlobalRef java_object_;
raw_ptr<Profile> profile_;
// Always valid until destroyed.
std::unique_ptr<tabs::TabStripCollection> tab_strip_collection_;
};
} // namespace tabs
#endif // CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_COLLECTION_TAB_MODEL_IMPL_H_
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