tdesktop/Telegram/SourceFiles/platform/linux/file_dialog_linux.cpp

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "platform/linux/file_dialog_linux.h"
#include <private/qguiapplication_p.h>
#include "platform/linux/linux_libs.h"
#include "platform/linux/linux_gdk_helper.h"
#include "mainwindow.h"
#include "localstorage.h"
QStringList qt_make_filter_list(const QString &filter);
namespace Platform {
namespace FileDialog {
using Type = ::FileDialog::internal::Type;
bool Supported() {
return Platform::internal::GdkHelperLoaded()
&& (Libs::gtk_widget_hide_on_delete != nullptr)
&& (Libs::gtk_clipboard_store != nullptr)
&& (Libs::gtk_clipboard_get != nullptr)
&& (Libs::gtk_widget_destroy != nullptr)
&& (Libs::gtk_dialog_get_type != nullptr)
&& (Libs::gtk_dialog_run != nullptr)
&& (Libs::gtk_widget_realize != nullptr)
&& (Libs::gdk_window_set_modal_hint != nullptr)
&& (Libs::gtk_widget_show != nullptr)
&& (Libs::gdk_window_focus != nullptr)
&& (Libs::gtk_widget_hide != nullptr)
&& (Libs::gtk_widget_hide_on_delete != nullptr)
&& (Libs::gtk_file_chooser_dialog_new != nullptr)
&& (Libs::gtk_file_chooser_get_type != nullptr)
&& (Libs::gtk_file_chooser_set_current_folder != nullptr)
&& (Libs::gtk_file_chooser_get_current_folder != nullptr)
&& (Libs::gtk_file_chooser_set_current_name != nullptr)
&& (Libs::gtk_file_chooser_select_filename != nullptr)
&& (Libs::gtk_file_chooser_get_filenames != nullptr)
&& (Libs::gtk_file_chooser_set_filter != nullptr)
&& (Libs::gtk_file_chooser_get_filter != nullptr)
&& (Libs::gtk_window_get_type != nullptr)
&& (Libs::gtk_window_set_title != nullptr)
&& (Libs::gtk_file_chooser_set_local_only != nullptr)
&& (Libs::gtk_file_chooser_set_action != nullptr)
&& (Libs::gtk_file_chooser_set_select_multiple != nullptr)
&& (Libs::gtk_file_chooser_set_do_overwrite_confirmation != nullptr)
&& (Libs::gtk_file_chooser_remove_filter != nullptr)
&& (Libs::gtk_file_filter_set_name != nullptr)
&& (Libs::gtk_file_filter_add_pattern != nullptr)
&& (Libs::gtk_file_chooser_add_filter != nullptr)
&& (Libs::gtk_file_filter_new != nullptr);
}
bool Get(QStringList &files, QByteArray &remoteContent, const QString &caption, const QString &filter, Type type, QString startFile) {
auto parent = App::wnd() ? App::wnd()->filedialogParent() : nullptr;
internal::GtkFileDialog dialog(parent, caption, QString(), filter);
dialog.setModal(true);
if (type == Type::ReadFile || type == Type::ReadFiles) {
dialog.setFileMode((type == Type::ReadFiles) ? QFileDialog::ExistingFiles : QFileDialog::ExistingFile);
dialog.setAcceptMode(QFileDialog::AcceptOpen);
} else if (type == Type::ReadFolder) {
dialog.setAcceptMode(QFileDialog::AcceptOpen);
dialog.setFileMode(QFileDialog::Directory);
dialog.setOption(QFileDialog::ShowDirsOnly);
} else {
dialog.setFileMode(QFileDialog::AnyFile);
dialog.setAcceptMode(QFileDialog::AcceptSave);
}
if (startFile.isEmpty() || startFile.at(0) != '/') {
startFile = cDialogLastPath() + '/' + startFile;
}
dialog.selectFile(startFile);
int res = dialog.exec();
QString path = dialog.directory().absolutePath();
if (path != cDialogLastPath()) {
cSetDialogLastPath(path);
Local::writeUserSettings();
}
if (res == QDialog::Accepted) {
if (type == Type::ReadFiles) {
files = dialog.selectedFiles();
} else {
files = dialog.selectedFiles().mid(0, 1);
}
return true;
}
files = QStringList();
remoteContent = QByteArray();
return false;
}
namespace internal {
QGtkDialog::QGtkDialog(GtkWidget *gtkWidget) : gtkWidget(gtkWidget) {
Libs::g_signal_connect_swapped_helper(Libs::g_object_cast(gtkWidget), "response", GCallback(onResponse), this);
Libs::g_signal_connect_helper(Libs::g_object_cast(gtkWidget), "delete-event", GCallback(Libs::gtk_widget_hide_on_delete), NULL);
}
QGtkDialog::~QGtkDialog() {
Libs::gtk_clipboard_store(Libs::gtk_clipboard_get(GDK_SELECTION_CLIPBOARD));
Libs::gtk_widget_destroy(gtkWidget);
}
GtkDialog *QGtkDialog::gtkDialog() const {
return Libs::gtk_dialog_cast(gtkWidget);
}
void QGtkDialog::exec() {
if (auto w = App::wnd()) {
w->onReActivate();
QTimer::singleShot(200, w, SLOT(onReActivate()));
}
if (modality() == Qt::ApplicationModal) {
// block input to the whole app, including other GTK dialogs
Libs::gtk_dialog_run(gtkDialog());
} else {
// block input to the window, allow input to other GTK dialogs
QEventLoop loop;
connect(this, SIGNAL(accept()), &loop, SLOT(quit()));
connect(this, SIGNAL(reject()), &loop, SLOT(quit()));
loop.exec();
}
}
void QGtkDialog::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) {
connect(parent, &QWindow::destroyed, this, &QGtkDialog::onParentWindowDestroyed,
Qt::UniqueConnection);
setParent(parent);
setFlags(flags);
setModality(modality);
Libs::gtk_widget_realize(gtkWidget); // creates X window
if (parent) {
Platform::internal::XSetTransientForHint(Libs::gtk_widget_get_window(gtkWidget), parent->winId());
}
if (modality != Qt::NonModal) {
Libs::gdk_window_set_modal_hint(Libs::gtk_widget_get_window(gtkWidget), true);
QGuiApplicationPrivate::showModalWindow(this);
}
Libs::gtk_widget_show(gtkWidget);
Libs::gdk_window_focus(Libs::gtk_widget_get_window(gtkWidget), 0);
}
void QGtkDialog::hide() {
QGuiApplicationPrivate::hideModalWindow(this);
Libs::gtk_widget_hide(gtkWidget);
}
void QGtkDialog::onResponse(QGtkDialog *dialog, int response) {
if (response == GTK_RESPONSE_OK)
emit dialog->accept();
else
emit dialog->reject();
}
void QGtkDialog::onParentWindowDestroyed() {
// The Gtk*DialogHelper classes own this object. Make sure the parent doesn't delete it.
setParent(nullptr);
}
namespace {
const char *filterRegExp =
"^(.*)\\(([a-zA-Z0-9_.,*? +;#\\-\\[\\]@\\{\\}/!<>\\$%&=^~:\\|]*)\\)$";
// Makes a list of filters from a normal filter string "Image Files (*.png *.jpg)"
QStringList cleanFilterList(const QString &filter) {
QRegExp regexp(QString::fromLatin1(filterRegExp));
Q_ASSERT(regexp.isValid());
QString f = filter;
int i = regexp.indexIn(f);
if (i >= 0)
f = regexp.cap(2);
return f.split(QLatin1Char(' '), QString::SkipEmptyParts);
}
} // namespace
GtkFileDialog::GtkFileDialog(QWidget *parent, const QString &caption, const QString &directory, const QString &filter) : QDialog(parent)
, _windowTitle(caption)
, _initialDirectory(directory) {
auto filters = qt_make_filter_list(filter);
const int numFilters = filters.count();
_nameFilters.reserve(numFilters);
for (int i = 0; i < numFilters; ++i) {
_nameFilters << filters[i].simplified();
}
d.reset(new QGtkDialog(Libs::gtk_file_chooser_dialog_new("", nullptr,
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK, NULL)));
connect(d.data(), SIGNAL(accept()), this, SLOT(onAccepted()));
connect(d.data(), SIGNAL(reject()), this, SLOT(onRejected()));
Libs::g_signal_connect_helper(Libs::gtk_file_chooser_cast(d->gtkDialog()), "selection-changed", G_CALLBACK(onSelectionChanged), this);
Libs::g_signal_connect_swapped_helper(Libs::gtk_file_chooser_cast(d->gtkDialog()), "current-folder-changed", G_CALLBACK(onCurrentFolderChanged), this);
}
GtkFileDialog::~GtkFileDialog() {
}
void GtkFileDialog::showHelper(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) {
_dir.clear();
_selection.clear();
applyOptions();
return d->show(flags, modality, parent);
}
void GtkFileDialog::setVisible(bool visible) {
if (visible) {
if (testAttribute(Qt::WA_WState_ExplicitShowHide) && !testAttribute(Qt::WA_WState_Hidden)) {
return;
}
} else if (testAttribute(Qt::WA_WState_ExplicitShowHide) && testAttribute(Qt::WA_WState_Hidden)) {
return;
}
if (visible) {
showHelper(windowFlags(), windowModality(), parentWidget() ? parentWidget()->windowHandle() : nullptr);
} else {
hideHelper();
}
// Set WA_DontShowOnScreen so that QDialog::setVisible(visible) below
// updates the state correctly, but skips showing the non-native version:
setAttribute(Qt::WA_DontShowOnScreen);
QDialog::setVisible(visible);
}
int GtkFileDialog::exec() {
d->setModality(windowModality());
bool deleteOnClose = testAttribute(Qt::WA_DeleteOnClose);
setAttribute(Qt::WA_DeleteOnClose, false);
bool wasShowModal = testAttribute(Qt::WA_ShowModal);
setAttribute(Qt::WA_ShowModal, true);
setResult(0);
show();
QPointer<QDialog> guard = this;
d->exec();
if (guard.isNull())
return QDialog::Rejected;
setAttribute(Qt::WA_ShowModal, wasShowModal);
return result();
}
void GtkFileDialog::hideHelper() {
// After GtkFileChooserDialog has been hidden, gtk_file_chooser_get_current_folder()
// & gtk_file_chooser_get_filenames() will return bogus values -> cache the actual
// values before hiding the dialog
_dir = directory().absolutePath();
_selection = selectedFiles();
d->hide();
}
bool GtkFileDialog::defaultNameFilterDisables() const {
return false;
}
void GtkFileDialog::setDirectory(const QString &directory) {
GtkDialog *gtkDialog = d->gtkDialog();
Libs::gtk_file_chooser_set_current_folder(Libs::gtk_file_chooser_cast(gtkDialog), directory.toUtf8());
}
QDir GtkFileDialog::directory() const {
// While GtkFileChooserDialog is hidden, gtk_file_chooser_get_current_folder()
// returns a bogus value -> return the cached value before hiding
if (!_dir.isEmpty())
return _dir;
QString ret;
GtkDialog *gtkDialog = d->gtkDialog();
gchar *folder = Libs::gtk_file_chooser_get_current_folder(Libs::gtk_file_chooser_cast(gtkDialog));
if (folder) {
ret = QString::fromUtf8(folder);
Libs::g_free(folder);
}
return QDir(ret);
}
void GtkFileDialog::selectFile(const QString &filename) {
_initialFiles.clear();
_initialFiles.append(filename);
}
QStringList GtkFileDialog::selectedFiles() const {
// While GtkFileChooserDialog is hidden, gtk_file_chooser_get_filenames()
// returns a bogus value -> return the cached value before hiding
if (!_selection.isEmpty())
return _selection;
QStringList selection;
GtkDialog *gtkDialog = d->gtkDialog();
GSList *filenames = Libs::gtk_file_chooser_get_filenames(Libs::gtk_file_chooser_cast(gtkDialog));
for (GSList *it = filenames; it; it = it->next)
selection += QString::fromUtf8((const char*)it->data);
Libs::g_slist_free(filenames);
return selection;
}
void GtkFileDialog::setFilter() {
applyOptions();
}
void GtkFileDialog::selectNameFilter(const QString &filter) {
GtkFileFilter *gtkFilter = _filters.value(filter);
if (gtkFilter) {
GtkDialog *gtkDialog = d->gtkDialog();
Libs::gtk_file_chooser_set_filter(Libs::gtk_file_chooser_cast(gtkDialog), gtkFilter);
}
}
QString GtkFileDialog::selectedNameFilter() const {
GtkDialog *gtkDialog = d->gtkDialog();
GtkFileFilter *gtkFilter = Libs::gtk_file_chooser_get_filter(Libs::gtk_file_chooser_cast(gtkDialog));
return _filterNames.value(gtkFilter);
}
void GtkFileDialog::onAccepted() {
emit accept();
// QString filter = selectedNameFilter();
// if (filter.isEmpty())
// emit filterSelected(filter);
// QList<QUrl> files = selectedFiles();
// emit filesSelected(files);
// if (files.count() == 1)
// emit fileSelected(files.first());
}
void GtkFileDialog::onRejected() {
emit reject();
//
}
void GtkFileDialog::onSelectionChanged(GtkDialog *gtkDialog, GtkFileDialog *helper) {
// QString selection;
// gchar *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(gtkDialog));
// if (filename) {
// selection = QString::fromUtf8(filename);
// g_free(filename);
// }
// emit helper->currentChanged(QUrl::fromLocalFile(selection));
}
void GtkFileDialog::onCurrentFolderChanged(GtkFileDialog *dialog) {
// emit dialog->directoryEntered(dialog->directory());
}
GtkFileChooserAction gtkFileChooserAction(QFileDialog::FileMode fileMode, QFileDialog::AcceptMode acceptMode) {
switch (fileMode) {
case QFileDialog::AnyFile:
case QFileDialog::ExistingFile:
case QFileDialog::ExistingFiles:
if (acceptMode == QFileDialog::AcceptOpen)
return GTK_FILE_CHOOSER_ACTION_OPEN;
else
return GTK_FILE_CHOOSER_ACTION_SAVE;
case QFileDialog::Directory:
case QFileDialog::DirectoryOnly:
default:
if (acceptMode == QFileDialog::AcceptOpen)
return GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
else
return GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER;
}
}
bool CustomButtonsSupported() {
return (Libs::gtk_dialog_get_widget_for_response != nullptr)
&& (Libs::gtk_button_set_label != nullptr)
&& (Libs::gtk_button_get_type != nullptr);
}
void GtkFileDialog::applyOptions() {
GtkDialog *gtkDialog = d->gtkDialog();
Libs::gtk_window_set_title(Libs::gtk_window_cast(gtkDialog), _windowTitle.toUtf8());
Libs::gtk_file_chooser_set_local_only(Libs::gtk_file_chooser_cast(gtkDialog), true);
const GtkFileChooserAction action = gtkFileChooserAction(_fileMode, _acceptMode);
Libs::gtk_file_chooser_set_action(Libs::gtk_file_chooser_cast(gtkDialog), action);
const bool selectMultiple = (_fileMode == QFileDialog::ExistingFiles);
Libs::gtk_file_chooser_set_select_multiple(Libs::gtk_file_chooser_cast(gtkDialog), selectMultiple);
const bool confirmOverwrite = !_options.testFlag(QFileDialog::DontConfirmOverwrite);
Libs::gtk_file_chooser_set_do_overwrite_confirmation(Libs::gtk_file_chooser_cast(gtkDialog), confirmOverwrite);
if (!_nameFilters.isEmpty())
setNameFilters(_nameFilters);
if (!_initialDirectory.isEmpty())
setDirectory(_initialDirectory);
for_const (const auto &filename, _initialFiles) {
if (_acceptMode == QFileDialog::AcceptSave) {
QFileInfo fi(filename);
Libs::gtk_file_chooser_set_current_folder(Libs::gtk_file_chooser_cast(gtkDialog), fi.path().toUtf8());
Libs::gtk_file_chooser_set_current_name(Libs::gtk_file_chooser_cast(gtkDialog), fi.fileName().toUtf8());
} else if (filename.endsWith('/')) {
Libs::gtk_file_chooser_set_current_folder(Libs::gtk_file_chooser_cast(gtkDialog), filename.toUtf8());
} else {
Libs::gtk_file_chooser_select_filename(Libs::gtk_file_chooser_cast(gtkDialog), filename.toUtf8());
}
}
const QString initialNameFilter = _nameFilters.isEmpty() ? QString() : _nameFilters.front();
if (!initialNameFilter.isEmpty())
selectNameFilter(initialNameFilter);
if (CustomButtonsSupported()) {
GtkWidget *acceptButton = Libs::gtk_dialog_get_widget_for_response(gtkDialog, GTK_RESPONSE_OK);
if (acceptButton) {
/*if (opts->isLabelExplicitlySet(QFileDialogOptions::Accept))
Libs::gtk_button_set_label(Libs::gtk_button_cast(acceptButton), opts->labelText(QFileDialogOptions::Accept).toUtf8());
else*/ if (_acceptMode == QFileDialog::AcceptOpen)
Libs::gtk_button_set_label(Libs::gtk_button_cast(acceptButton), GTK_STOCK_OPEN);
else
Libs::gtk_button_set_label(Libs::gtk_button_cast(acceptButton), GTK_STOCK_SAVE);
}
GtkWidget *rejectButton = Libs::gtk_dialog_get_widget_for_response(gtkDialog, GTK_RESPONSE_CANCEL);
if (rejectButton) {
/*if (opts->isLabelExplicitlySet(QFileDialogOptions::Reject))
Libs::gtk_button_set_label(Libs::gtk_button_cast(rejectButton), opts->labelText(QFileDialogOptions::Reject).toUtf8());
else*/
Libs::gtk_button_set_label(Libs::gtk_button_cast(rejectButton), GTK_STOCK_CANCEL);
}
}
}
void GtkFileDialog::setNameFilters(const QStringList &filters) {
GtkDialog *gtkDialog = d->gtkDialog();
foreach (GtkFileFilter *filter, _filters)
Libs::gtk_file_chooser_remove_filter(Libs::gtk_file_chooser_cast(gtkDialog), filter);
_filters.clear();
_filterNames.clear();
for_const (auto &filter, filters) {
GtkFileFilter *gtkFilter = Libs::gtk_file_filter_new();
auto name = filter;//.left(filter.indexOf(QLatin1Char('(')));
auto extensions = cleanFilterList(filter);
Libs::gtk_file_filter_set_name(gtkFilter, name.isEmpty() ? extensions.join(QStringLiteral(", ")).toUtf8() : name.toUtf8());
for_const (auto &ext, extensions) {
auto caseInsensitiveExt = QString();
caseInsensitiveExt.reserve(4 * ext.size());
for_const (auto ch, ext) {
auto chLower = ch.toLower();
auto chUpper = ch.toUpper();
if (chLower != chUpper) {
caseInsensitiveExt.append('[').append(chLower).append(chUpper).append(']');
} else {
caseInsensitiveExt.append(ch);
}
}
Libs::gtk_file_filter_add_pattern(gtkFilter, caseInsensitiveExt.toUtf8());
}
Libs::gtk_file_chooser_add_filter(Libs::gtk_file_chooser_cast(gtkDialog), gtkFilter);
_filters.insert(filter, gtkFilter);
_filterNames.insert(gtkFilter, filter);
}
}
} // namespace internal
} // namespace FileDialog
} // namespace Platform