mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-01 05:41:01 +00:00
288 lines
8.6 KiB
C++
288 lines
8.6 KiB
C++
#include "GDirectoryModel.h"
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#include <dirent.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <grp.h>
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#include <pwd.h>
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#include <AK/FileSystemPath.h>
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#include <AK/StringBuilder.h>
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#include <SharedGraphics/GraphicsBitmap.h>
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#include <LibGUI/GPainter.h>
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#include <LibCore/CLock.h>
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#include <LibCore/CDirIterator.h>
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static CLockable<HashMap<String, RetainPtr<GraphicsBitmap>>>& thumbnail_cache()
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{
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static CLockable<HashMap<String, RetainPtr<GraphicsBitmap>>>* s_map;
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if (!s_map)
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s_map = new CLockable<HashMap<String, RetainPtr<GraphicsBitmap>>>();
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return *s_map;
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}
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int thumbnail_thread(void* model_ptr)
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{
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auto& model = *(GDirectoryModel*)model_ptr;
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for (;;) {
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sleep(1);
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Vector<String> to_generate;
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{
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LOCKER(thumbnail_cache().lock());
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to_generate.ensure_capacity(thumbnail_cache().resource().size());
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for (auto& it : thumbnail_cache().resource()) {
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if (it.value)
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continue;
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to_generate.append(it.key);
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}
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}
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if (to_generate.is_empty())
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continue;
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for (int i = 0; i < to_generate.size(); ++i) {
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auto& path = to_generate[i];
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auto png_bitmap = GraphicsBitmap::load_from_file(path);
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if (!png_bitmap)
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continue;
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auto thumbnail = GraphicsBitmap::create(png_bitmap->format(), { 32, 32 });
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Painter painter(*thumbnail);
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painter.draw_scaled_bitmap(thumbnail->rect(), *png_bitmap, png_bitmap->rect());
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{
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LOCKER(thumbnail_cache().lock());
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thumbnail_cache().resource().set(path, move(thumbnail));
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}
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if (model.on_thumbnail_progress)
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model.on_thumbnail_progress(i + 1, to_generate.size());
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model.did_update();
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}
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}
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}
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GDirectoryModel::GDirectoryModel()
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{
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create_thread(thumbnail_thread, this);
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m_directory_icon = GIcon::default_icon("filetype-folder");
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m_file_icon = GIcon::default_icon("filetype-unknown");
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m_symlink_icon = GIcon::default_icon("filetype-symlink");
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m_socket_icon = GIcon::default_icon("filetype-socket");
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m_executable_icon = GIcon::default_icon("filetype-executable");
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m_filetype_image_icon = GIcon::default_icon("filetype-image");
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setpwent();
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while (auto* passwd = getpwent())
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m_user_names.set(passwd->pw_uid, passwd->pw_name);
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endpwent();
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setgrent();
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while (auto* group = getgrent())
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m_group_names.set(group->gr_gid, group->gr_name);
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endgrent();
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}
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GDirectoryModel::~GDirectoryModel()
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{
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}
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int GDirectoryModel::row_count(const GModelIndex&) const
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{
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return m_directories.size() + m_files.size();
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}
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int GDirectoryModel::column_count(const GModelIndex&) const
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{
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return Column::__Count;
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}
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String GDirectoryModel::column_name(int column) const
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{
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switch (column) {
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case Column::Icon: return "";
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case Column::Name: return "Name";
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case Column::Size: return "Size";
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case Column::Owner: return "Owner";
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case Column::Group: return "Group";
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case Column::Permissions: return "Mode";
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case Column::Inode: return "Inode";
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}
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ASSERT_NOT_REACHED();
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}
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GModel::ColumnMetadata GDirectoryModel::column_metadata(int column) const
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{
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switch (column) {
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case Column::Icon: return { 16, TextAlignment::Center };
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case Column::Name: return { 120, TextAlignment::CenterLeft };
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case Column::Size: return { 80, TextAlignment::CenterRight };
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case Column::Owner: return { 50, TextAlignment::CenterLeft };
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case Column::Group: return { 50, TextAlignment::CenterLeft };
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case Column::Permissions: return { 80, TextAlignment::CenterLeft };
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case Column::Inode: return { 80, TextAlignment::CenterRight };
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}
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ASSERT_NOT_REACHED();
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}
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GIcon GDirectoryModel::icon_for(const Entry& entry) const
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{
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if (S_ISDIR(entry.mode))
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return m_directory_icon;
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if (S_ISLNK(entry.mode))
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return m_symlink_icon;
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if (S_ISSOCK(entry.mode))
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return m_socket_icon;
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if (entry.mode & S_IXUSR)
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return m_executable_icon;
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if (entry.name.to_lowercase().ends_with(".png")) {
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if (!entry.thumbnail) {
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auto path = entry.full_path(*this);
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LOCKER(thumbnail_cache().lock());
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auto it = thumbnail_cache().resource().find(path);
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if (it != thumbnail_cache().resource().end()) {
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entry.thumbnail = (*it).value.copy_ref();
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} else {
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thumbnail_cache().resource().set(path, nullptr);
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}
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}
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if (!entry.thumbnail)
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return m_filetype_image_icon;
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return GIcon(m_filetype_image_icon.bitmap_for_size(16), *entry.thumbnail);
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}
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return m_file_icon;
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}
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static String permission_string(mode_t mode)
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{
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StringBuilder builder;
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if (S_ISDIR(mode))
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builder.append("d");
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else if (S_ISLNK(mode))
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builder.append("l");
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else if (S_ISBLK(mode))
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builder.append("b");
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else if (S_ISCHR(mode))
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builder.append("c");
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else if (S_ISFIFO(mode))
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builder.append("f");
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else if (S_ISSOCK(mode))
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builder.append("s");
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else if (S_ISREG(mode))
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builder.append("-");
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else
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builder.append("?");
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builder.appendf("%c%c%c%c%c%c%c%c",
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mode & S_IRUSR ? 'r' : '-',
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mode & S_IWUSR ? 'w' : '-',
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mode & S_ISUID ? 's' : (mode & S_IXUSR ? 'x' : '-'),
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mode & S_IRGRP ? 'r' : '-',
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mode & S_IWGRP ? 'w' : '-',
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mode & S_ISGID ? 's' : (mode & S_IXGRP ? 'x' : '-'),
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mode & S_IROTH ? 'r' : '-',
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mode & S_IWOTH ? 'w' : '-'
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);
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if (mode & S_ISVTX)
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builder.append("t");
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else
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builder.appendf("%c", mode & S_IXOTH ? 'x' : '-');
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return builder.to_string();
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}
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String GDirectoryModel::name_for_uid(uid_t uid) const
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{
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auto it = m_user_names.find(uid);
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if (it == m_user_names.end())
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return String::format("%u", uid);
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return (*it).value;
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}
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String GDirectoryModel::name_for_gid(uid_t gid) const
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{
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auto it = m_user_names.find(gid);
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if (it == m_user_names.end())
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return String::format("%u", gid);
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return (*it).value;
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}
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GVariant GDirectoryModel::data(const GModelIndex& index, Role role) const
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{
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ASSERT(is_valid(index));
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auto& entry = this->entry(index.row());
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if (role == Role::Sort) {
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switch (index.column()) {
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case Column::Icon: return entry.is_directory() ? 0 : 1;
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case Column::Name: return entry.name;
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case Column::Size: return (int)entry.size;
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case Column::Owner: return name_for_uid(entry.uid);
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case Column::Group: return name_for_gid(entry.gid);
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case Column::Permissions: return permission_string(entry.mode);
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case Column::Inode: return (int)entry.inode;
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}
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ASSERT_NOT_REACHED();
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}
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if (role == Role::Display) {
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switch (index.column()) {
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case Column::Icon: return icon_for(entry);
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case Column::Name: return entry.name;
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case Column::Size: return (int)entry.size;
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case Column::Owner: return name_for_uid(entry.uid);
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case Column::Group: return name_for_gid(entry.gid);
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case Column::Permissions: return permission_string(entry.mode);
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case Column::Inode: return (int)entry.inode;
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}
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}
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if (role == Role::Icon) {
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return icon_for(entry);
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}
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return { };
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}
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void GDirectoryModel::update()
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{
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CDirIterator di(m_path, CDirIterator::SkipDots);
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if (di.has_error()) {
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fprintf(stderr, "CDirIterator: %s\n", di.error_string());
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exit(1);
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}
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m_directories.clear();
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m_files.clear();
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m_bytes_in_files = 0;
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while (di.has_next()) {
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String name = di.next_path();
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Entry entry;
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entry.name = name;
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struct stat st;
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int rc = lstat(String::format("%s/%s", m_path.characters(), name.characters()).characters(), &st);
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if (rc < 0) {
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perror("lstat");
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continue;
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}
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entry.size = st.st_size;
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entry.mode = st.st_mode;
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entry.uid = st.st_uid;
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entry.gid = st.st_gid;
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entry.inode = st.st_ino;
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auto& entries = S_ISDIR(st.st_mode) ? m_directories : m_files;
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entries.append(move(entry));
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if (S_ISREG(entry.mode))
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m_bytes_in_files += st.st_size;
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}
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did_update();
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}
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void GDirectoryModel::open(const StringView& a_path)
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{
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FileSystemPath canonical_path(a_path);
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auto path = canonical_path.string();
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if (m_path == path)
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return;
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DIR* dirp = opendir(path.characters());
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if (!dirp)
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return;
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closedir(dirp);
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m_path = path;
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update();
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set_selected_index(index(0, 0));
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}
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