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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/HashMap.h>
#include <LibCore/DateTime.h>
#include <LibCore/FileWatcher.h>
#include <LibGUI/Model.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
namespace GUI {
class FileSystemModel
: public Model
, public Weakable<FileSystemModel> {
friend struct Node;
public:
enum Mode {
Invalid,
DirectoriesOnly,
FilesAndDirectories
};
enum Column {
Icon = 0,
Name,
Size,
User,
Group,
Permissions,
ModificationTime,
Inode,
SymlinkTarget,
__Count,
};
struct Node {
~Node() = default;
DeprecatedString name;
DeprecatedString symlink_target;
size_t size { 0 };
mode_t mode { 0 };
uid_t uid { 0 };
gid_t gid { 0 };
ino_t inode { 0 };
time_t mtime { 0 };
bool is_accessible_directory { false };
size_t total_size { 0 };
mutable RefPtr<Gfx::Bitmap> thumbnail;
bool is_directory() const { return S_ISDIR(mode); }
bool is_symlink_to_directory() const;
bool is_executable() const { return mode & (S_IXUSR | S_IXGRP | S_IXOTH); }
bool is_selected() const { return m_selected; }
void set_selected(bool selected);
bool has_error() const { return m_error != 0; }
int error() const { return m_error; }
char const* error_string() const { return strerror(m_error); }
DeprecatedString full_path() const;
private:
friend class FileSystemModel;
explicit Node(FileSystemModel& model)
: m_model(model)
{
}
FileSystemModel& m_model;
Node* m_parent { nullptr };
Vector<NonnullOwnPtr<Node>> m_children;
bool m_has_traversed { false };
bool m_selected { false };
int m_error { 0 };
bool m_parent_of_root { false };
ModelIndex index(int column) const;
void traverse_if_needed();
void reify_if_needed();
bool fetch_data(DeprecatedString const& full_path, bool is_root);
OwnPtr<Node> create_child(DeprecatedString const& child_name);
};
static NonnullRefPtr<FileSystemModel> create(DeprecatedString root_path = "/", Mode mode = Mode::FilesAndDirectories)
{
return adopt_ref(*new FileSystemModel(root_path, mode));
}
virtual ~FileSystemModel() override = default;
DeprecatedString root_path() const { return m_root_path; }
void set_root_path(DeprecatedString);
DeprecatedString full_path(ModelIndex const&) const;
ModelIndex index(DeprecatedString path, int column) const;
void update_node_on_selection(ModelIndex const&, bool const);
ModelIndex m_previously_selected_index {};
Node const& node(ModelIndex const& index) const;
Function<void(int done, int total)> on_thumbnail_progress;
Function<void()> on_complete;
Function<void(int error, char const* error_string)> on_directory_change_error;
Function<void(int error, char const* error_string)> on_rename_error;
Function<void(DeprecatedString const& old_name, DeprecatedString const& new_name)> on_rename_successful;
Function<void()> on_root_path_removed;
virtual int tree_column() const override { return Column::Name; }
virtual int row_count(ModelIndex const& = ModelIndex()) const override;
virtual int column_count(ModelIndex const& = ModelIndex()) const override;
virtual DeprecatedString column_name(int column) const override;
virtual Variant data(ModelIndex const&, ModelRole = ModelRole::Display) const override;
virtual ModelIndex parent_index(ModelIndex const&) const override;
virtual ModelIndex index(int row, int column = 0, ModelIndex const& parent = ModelIndex()) const override;
virtual StringView drag_data_type() const override { return "text/uri-list"sv; }
virtual bool accepts_drag(ModelIndex const&, Vector<DeprecatedString> const& mime_types) const override;
virtual bool is_column_sortable(int column_index) const override { return column_index != Column::Icon; }
virtual bool is_editable(ModelIndex const&) const override;
virtual bool is_searchable() const override { return true; }
virtual void set_data(ModelIndex const&, Variant const&) override;
virtual Vector<ModelIndex> matches(StringView, unsigned = MatchesFlag::AllMatching, ModelIndex const& = ModelIndex()) override;
virtual void invalidate() override;
static DeprecatedString timestamp_string(time_t timestamp)
{
return Core::DateTime::from_timestamp(timestamp).to_deprecated_string();
}
bool should_show_dotfiles() const { return m_should_show_dotfiles; }
void set_should_show_dotfiles(bool);
Optional<Vector<DeprecatedString>> allowed_file_extensions() const { return m_allowed_file_extensions; }
void set_allowed_file_extensions(Optional<Vector<DeprecatedString>> const& allowed_file_extensions);
private:
FileSystemModel(DeprecatedString root_path, Mode);
DeprecatedString name_for_uid(uid_t) const;
DeprecatedString name_for_gid(gid_t) const;
Optional<Node const&> node_for_path(DeprecatedString const&) const;
HashMap<uid_t, DeprecatedString> m_user_names;
HashMap<gid_t, DeprecatedString> m_group_names;
bool fetch_thumbnail_for(Node const& node);
GUI::Icon icon_for(Node const& node) const;
void handle_file_event(Core::FileWatcherEvent const& event);
DeprecatedString m_root_path;
Mode m_mode { Invalid };
OwnPtr<Node> m_root { nullptr };
unsigned m_thumbnail_progress { 0 };
unsigned m_thumbnail_progress_total { 0 };
Optional<Vector<DeprecatedString>> m_allowed_file_extensions;
bool m_should_show_dotfiles { false };
RefPtr<Core::FileWatcher> m_file_watcher;
};
}
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