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Move preview support from QGtkDialog to GtkFileDialog

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This commit is contained in:
Ilya Fedin 2021-06-24 09:10:43 +04:00 • committed by John Preston
parent 00a0b2c8b6
commit 5c8f08fc92
1 changed files with 34 additions and 33 deletions
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67
Telegram/SourceFiles/platform/linux/linux_gtk_file_dialog.cpp
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@ -135,13 +135,11 @@ public:
protected:
static void onResponse(QGtkDialog *dialog, int response);
static void onUpdatePreview(QGtkDialog *dialog);
private:
void onParentWindowDestroyed();
GtkWidget *gtkWidget = nullptr;
GtkWidget *_preview = nullptr;
rpl::event_stream<> _accept;
rpl::event_stream<> _reject;
@ -192,6 +190,7 @@ public:
private:
static void onSelectionChanged(GtkDialog *dialog, GtkFileDialog *helper);
static void onCurrentFolderChanged(GtkFileDialog *helper);
static void onUpdatePreview(GtkDialog *gtkDialog, GtkFileDialog *helper);
void applyOptions();
void setNameFilters(const QStringList &filters);
@ -215,6 +214,7 @@ private:
QHash<QString, GtkFileFilter*> _filters;
QHash<GtkFileFilter*, QString> _filterNames;
QScopedPointer<QGtkDialog> d;
GtkWidget *_preview = nullptr;
rpl::lifetime _lifetime;
};
@ -222,11 +222,6 @@ private:
QGtkDialog::QGtkDialog(GtkWidget *gtkWidget) : gtkWidget(gtkWidget) {
g_signal_connect_swapped(G_OBJECT(gtkWidget), "response", G_CALLBACK(onResponse), this);
g_signal_connect(G_OBJECT(gtkWidget), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), nullptr);
if (PreviewSupported()) {
_preview = gtk_image_new();
g_signal_connect_swapped(G_OBJECT(gtkWidget), "update-preview", G_CALLBACK(onUpdatePreview), this);
gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(gtkWidget), _preview);
}
}
QGtkDialog::~QGtkDialog() {
@ -304,32 +299,6 @@ void QGtkDialog::onResponse(QGtkDialog *dialog, int response) {
dialog->_reject.fire({});
}
void QGtkDialog::onUpdatePreview(QGtkDialog* dialog) {
auto filename = gtk_file_chooser_get_preview_filename(GTK_FILE_CHOOSER(dialog->gtkWidget));
if (!filename) {
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(dialog->gtkWidget), false);
return;
}
// Don't attempt to open anything which isn't a regular file. If a named pipe,
// this may hang. See https://crbug.com/534754.
struct stat stat_buf;
if (stat(filename, &stat_buf) != 0 || !S_ISREG(stat_buf.st_mode)) {
g_free(filename);
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(dialog->gtkWidget), false);
return;
}
// This will preserve the image's aspect ratio.
auto pixbuf = gdk_pixbuf_new_from_file_at_size(filename, kPreviewWidth, kPreviewHeight, nullptr);
g_free(filename);
if (pixbuf) {
gtk_image_set_from_pixbuf(GTK_IMAGE(dialog->_preview), pixbuf);
g_object_unref(pixbuf);
}
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(dialog->gtkWidget), pixbuf ? true : false);
}
void QGtkDialog::onParentWindowDestroyed() {
// The Gtk*DialogHelper classes own this object. Make sure the parent doesn't delete it.
setParent(nullptr);
@ -362,6 +331,12 @@ GtkFileDialog::GtkFileDialog(QWidget *parent, const QString &caption, const QStr
g_signal_connect(GTK_FILE_CHOOSER(d->gtkDialog()), "selection-changed", G_CALLBACK(onSelectionChanged), this);
g_signal_connect_swapped(GTK_FILE_CHOOSER(d->gtkDialog()), "current-folder-changed", G_CALLBACK(onCurrentFolderChanged), this);
if (PreviewSupported()) {
_preview = gtk_image_new();
g_signal_connect(G_OBJECT(d->gtkDialog()), "update-preview", G_CALLBACK(onUpdatePreview), this);
gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(d->gtkDialog()), _preview);
}
}
GtkFileDialog::~GtkFileDialog() {
@ -525,6 +500,32 @@ void GtkFileDialog::onCurrentFolderChanged(GtkFileDialog *dialog) {
// emit dialog->directoryEntered(dialog->directory());
}
void GtkFileDialog::onUpdatePreview(GtkDialog *gtkDialog, GtkFileDialog *helper) {
auto filename = gtk_file_chooser_get_preview_filename(GTK_FILE_CHOOSER(gtkDialog));
if (!filename) {
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(gtkDialog), false);
return;
}
// Don't attempt to open anything which isn't a regular file. If a named pipe,
// this may hang. See https://crbug.com/534754.
struct stat stat_buf;
if (stat(filename, &stat_buf) != 0 || !S_ISREG(stat_buf.st_mode)) {
g_free(filename);
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(gtkDialog), false);
return;
}
// This will preserve the image's aspect ratio.
auto pixbuf = gdk_pixbuf_new_from_file_at_size(filename, kPreviewWidth, kPreviewHeight, nullptr);
g_free(filename);
if (pixbuf) {
gtk_image_set_from_pixbuf(GTK_IMAGE(helper->_preview), pixbuf);
g_object_unref(pixbuf);
}
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(gtkDialog), pixbuf ? true : false);
}
GtkFileChooserAction gtkFileChooserAction(QFileDialog::FileMode fileMode, QFileDialog::AcceptMode acceptMode) {
switch (fileMode) {
case QFileDialog::AnyFile: