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#include "filesystemmodel.hpp"
#include <QObject>
#include <qqmlintegration.h>
#include <QAbstractListModel>
#include <QFileInfo>
#include <QDir>
#include <QDirIterator>
#include <QImageReader>
int FileSystemModel::rowCount(const QModelIndex& parent) const {
Q_UNUSED(parent);
return static_cast<int>(m_entries.size());
}
QVariant FileSystemModel::data(const QModelIndex& index, int role) const {
if (!index.isValid() || index.row() >= m_entries.size()) {
return QVariant();
}
FileSystemEntry* file = m_entries.at(index.row());
switch (role) {
case FilePathRole:
return file->path();
case RelativeFilePathRole:
return file->relativePath();
case FileNameRole:
return file->name();
case ParentDirRole:
return file->parentDir();
case FileSizeRole:
return file->size();
case FileIsDirRole:
return file->isDir();
case FileIsImageRole:
return file->isImage();
default:
return QVariant();
}
}
QHash<int, QByteArray> FileSystemModel::roleNames() const {
QHash<int, QByteArray> roles;
roles[FilePathRole] = "filePath";
roles[RelativeFilePathRole] = "relativeFilePath";
roles[FileNameRole] = "fileName";
roles[ParentDirRole] = "parentDir";
roles[FileSizeRole] = "fileSize";
roles[FileIsDirRole] = "fileIsDir";
roles[FileIsImageRole] = "fileIsImage";
return roles;
}
QString FileSystemModel::path() const {
return m_path;
}
void FileSystemModel::setPath(const QString& path) {
if (m_path == path) {
return;
}
m_path = path;
emit pathChanged();
m_dir.setPath(m_path);
update();
}
bool FileSystemModel::recursive() const {
return m_recursive;
}
void FileSystemModel::setRecursive(bool recursive) {
if (m_recursive == recursive) {
return;
}
m_recursive = recursive;
emit recursiveChanged();
update();
}
FileSystemModel::Filter FileSystemModel::filter() const {
return m_filter;
}
void FileSystemModel::setFilter(Filter filter) {
if (m_filter == filter) {
return;
}
m_filter = filter;
emit filterChanged();
update();
}
QList<FileSystemEntry*> FileSystemModel::entries() const {
return m_entries;
}
void FileSystemModel::watchDirIfRecursive(const QString& path) {
if (m_recursive) {
QDirIterator iter(path, QDir::Dirs | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
while (iter.hasNext()) {
m_watcher.addPath(iter.next());
}
}
}
void FileSystemModel::update() {
updateWatcher();
updateEntries();
}
void FileSystemModel::updateWatcher() {
if (!m_watcher.directories().isEmpty()) {
m_watcher.removePaths(m_watcher.directories());
}
if (m_path.isEmpty()) {
return;
}
m_watcher.addPath(m_path);
watchDirIfRecursive(m_path);
}
void FileSystemModel::updateEntries() {
if (m_path.isEmpty()) {
if (!m_entries.isEmpty()) {
beginResetModel();
qDeleteAll(m_entries);
m_entries.clear();
emit entriesChanged();
endResetModel();
}
return;
}
const auto flags = m_recursive ? QDirIterator::Subdirectories : QDirIterator::NoIteratorFlags;
std::optional<QDirIterator> iter;
if (m_filter == Images) {
QStringList filters;
for (const auto& format : QImageReader::supportedImageFormats()) {
filters << "*." + format;
}
iter.emplace(m_path, filters, QDir::Files, flags);
} else if (m_filter == Files) {
iter.emplace(m_path, QDir::Files, flags);
} else {
iter.emplace(m_path, QDir::Dirs | QDir::Files | QDir::NoDotAndDotDot, flags);
}
QStringList newPaths;
while (iter.value().hasNext()) {
QString path = iter.value().next();
if (m_filter == Images) {
QImageReader reader(path);
if (!reader.canRead()) {
continue;
}
}
newPaths << path;
}
QStringList oldPaths;
for (const auto& entry : m_entries) {
oldPaths << entry->path();
}
if (newPaths == oldPaths) {
return;
}
beginResetModel();
qDeleteAll(m_entries);
m_entries.clear();
for (const auto& path : newPaths) {
m_entries << new FileSystemEntry(path, m_dir.relativeFilePath(path), this);
}
emit entriesChanged();
endResetModel();
}
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