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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/HashMap.h>
#include <AK/NonnullOwnPtrVector.h>
#include <LibCore/DateTime.h>
#include <LibCore/Notifier.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,
Owner,
Group,
Permissions,
ModificationTime,
Inode,
SymlinkTarget,
__Count,
};
struct Node {
~Node() { close(m_watch_fd); }
String name;
String 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_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; }
const char* error_string() const { return strerror(m_error); }
String full_path() const;
private:
friend class FileSystemModel;
explicit Node(FileSystemModel& model)
: m_model(model)
{
}
FileSystemModel& m_model;
Node* parent { nullptr };
NonnullOwnPtrVector<Node> children;
bool has_traversed { false };
bool m_selected { false };
int m_watch_fd { -1 };
RefPtr<Core::Notifier> m_notifier;
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(const String& full_path, bool is_root);
};
static NonnullRefPtr<FileSystemModel> create(const StringView& root_path = "/", Mode mode = Mode::FilesAndDirectories)
{
return adopt(*new FileSystemModel(root_path, mode));
}
virtual ~FileSystemModel() override;
String root_path() const { return m_root_path; }
void set_root_path(const StringView&);
String full_path(const ModelIndex&) const;
ModelIndex index(const StringView& path, int column) const;
void update_node_on_selection(const ModelIndex&, const bool);
ModelIndex m_previously_selected_index {};
const Node& node(const ModelIndex& index) const;
Function<void(int done, int total)> on_thumbnail_progress;
Function<void()> on_complete;
Function<void(int error, const char* error_string)> on_error;
virtual int tree_column() const override { return Column::Name; }
virtual int row_count(const ModelIndex& = ModelIndex()) const override;
virtual int column_count(const ModelIndex& = ModelIndex()) const override;
virtual String column_name(int column) const override;
virtual Variant data(const ModelIndex&, ModelRole = ModelRole::Display) const override;
virtual void update() override;
virtual ModelIndex parent_index(const ModelIndex&) const override;
virtual ModelIndex index(int row, int column = 0, const ModelIndex& parent = ModelIndex()) const override;
virtual StringView drag_data_type() const override { return "text/uri-list"; }
virtual bool accepts_drag(const ModelIndex&, const StringView& data_type) override;
virtual bool is_column_sortable(int column_index) const override { return column_index != Column::Icon; }
virtual bool is_editable(const ModelIndex&) const override;
virtual void set_data(const ModelIndex&, const Variant&) override;
static String timestamp_string(time_t timestamp)
{
return Core::DateTime::from_timestamp(timestamp).to_string();
}
bool should_show_dotfiles() const { return m_should_show_dotfiles; }
void set_should_show_dotfiles(bool);
private:
FileSystemModel(const StringView& root_path, Mode);
String name_for_uid(uid_t) const;
String name_for_gid(gid_t) const;
HashMap<uid_t, String> m_user_names;
HashMap<gid_t, String> m_group_names;
bool fetch_thumbnail_for(const Node& node);
GUI::Icon icon_for(const Node& node) const;
String m_root_path;
Mode m_mode { Invalid };
OwnPtr<Node> m_root { nullptr };
unsigned m_thumbnail_progress { 0 };
unsigned m_thumbnail_progress_total { 0 };
bool m_should_show_dotfiles { false };
};
}
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