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gtk-demo: Add a file dialog demo

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This commit is contained in:
Matthias Clasen 2023-02-06 19:57:49 +01:00
parent 10c03c9a1a
commit 7ee3d2d589
1 changed files with 91 additions and 13 deletions
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104
demos/gtk-demo/pickers.c
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@ -11,6 +11,20 @@
#include <gtk/gtk.h>
static GtkWidget *app_picker;
static GtkWidget *print_button;
static gboolean
abort_mission (gpointer data)
{
GCancellable *cancellable = data;
g_object_set_data (G_OBJECT (cancellable), "timeout", NULL);
g_print ("Aborting mission\n");
g_cancellable_cancel (cancellable);
return G_SOURCE_REMOVE;
}
static void
file_opened (GObject *source,
@ -18,8 +32,16 @@ file_opened (GObject *source,
void *data)
{
GFile *file;
GFileInfo *info;
GError *error = NULL;
char *name;
GCancellable *cancellable;
unsigned int id;
cancellable = g_task_get_cancellable (G_TASK (result));
id = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (cancellable), "timeout"));
if (id)
g_source_remove (id);
file = gtk_file_dialog_open_finish (GTK_FILE_DIALOG (source), result, &error);
@ -29,6 +51,8 @@ file_opened (GObject *source,
g_error_free (error);
gtk_widget_set_sensitive (app_picker, FALSE);
g_object_set_data (G_OBJECT (app_picker), "file", NULL);
gtk_widget_set_sensitive (print_button, FALSE);
g_object_set_data (G_OBJECT (print_button), "file", NULL);
return;
}
@ -38,16 +62,13 @@ file_opened (GObject *source,
gtk_widget_set_sensitive (app_picker, TRUE);
g_object_set_data_full (G_OBJECT (app_picker), "file", g_object_ref (file), g_object_unref);
}
static gboolean
abort_mission (gpointer data)
{
GCancellable *cancellable = data;
g_cancellable_cancel (cancellable);
return G_SOURCE_REMOVE;
info = g_file_query_info (file, "standard::content-type", 0, NULL, NULL);
if (strcmp (g_file_info_get_content_type (info), "application/pdf") == 0)
{
gtk_widget_set_sensitive (print_button, TRUE);
g_object_set_data_full (G_OBJECT (print_button), "file", g_object_ref (file), g_object_unref);
}
}
static void
@ -57,14 +78,16 @@ open_file (GtkButton *picker,
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkFileDialog *dialog;
GCancellable *cancellable;
unsigned int id;
dialog = gtk_file_dialog_new ();
cancellable = g_cancellable_new ();
g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
20,
abort_mission, g_object_ref (cancellable), g_object_unref);
id = g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
20,
abort_mission, g_object_ref (cancellable), g_object_unref);
g_object_set_data (G_OBJECT (cancellable), "timeout", GUINT_TO_POINTER (id));
gtk_file_dialog_open (dialog, parent, cancellable, file_opened, label);
@ -102,6 +125,53 @@ open_app (GtkButton *picker)
g_object_unref (launcher);
}
static void
print_file_done (GObject *source,
GAsyncResult *result,
gpointer data)
{
GtkPrintDialog *dialog = GTK_PRINT_DIALOG (source);
GError *error = NULL;
GCancellable *cancellable;
unsigned int id;
cancellable = g_task_get_cancellable (G_TASK (result));
id = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (cancellable), "timeout"));
if (id)
g_source_remove (id);
if (!gtk_print_dialog_print_file_finish (dialog, result, &error))
{
g_print ("%s\n", error->message);
g_error_free (error);
}
}
static void
print_file (GtkButton *picker)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkPrintDialog *dialog;
GCancellable *cancellable;
GFile *file;
unsigned int id;
file = G_FILE (g_object_get_data (G_OBJECT (picker), "file"));
dialog = gtk_print_dialog_new ();
cancellable = g_cancellable_new ();
id = g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
20,
abort_mission, g_object_ref (cancellable), g_object_unref);
g_object_set_data (G_OBJECT (cancellable), "timeout", GUINT_TO_POINTER (id));
gtk_print_dialog_print_file (dialog, parent, file, cancellable, print_file_done, NULL);
g_object_unref (cancellable);
g_object_unref (dialog);
}
static void
open_uri_done (GObject *source,
GAsyncResult *result,
@ -179,6 +249,7 @@ do_pickers (GtkWidget *do_widget)
picker = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
button = gtk_button_new_from_icon_name ("document-open-symbolic");
gtk_widget_set_tooltip_text (button, "Select file");
label = gtk_label_new ("None");
gtk_label_set_xalign (GTK_LABEL (label), 0.);
gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_MIDDLE);
@ -186,13 +257,20 @@ do_pickers (GtkWidget *do_widget)
g_signal_connect (button, "clicked", G_CALLBACK (open_file), label);
gtk_box_append (GTK_BOX (picker), label);
gtk_box_append (GTK_BOX (picker), button);
app_picker = gtk_button_new_from_icon_name ("emblem-system-symbolic");
gtk_widget_set_tooltip_text (app_picker, "Open file");
gtk_widget_set_halign (app_picker, GTK_ALIGN_END);
gtk_widget_set_sensitive (app_picker, FALSE);
g_signal_connect (app_picker, "clicked", G_CALLBACK (open_app), NULL);
gtk_box_append (GTK_BOX (picker), app_picker);
gtk_grid_attach (GTK_GRID (table), picker, 1, 2, 1, 1);
print_button = gtk_button_new_from_icon_name ("printer-symbolic");
gtk_widget_set_tooltip_text (print_button, "Print file");
gtk_widget_set_sensitive (print_button, FALSE);
g_signal_connect (print_button, "clicked", G_CALLBACK (print_file), NULL);
gtk_box_append (GTK_BOX (picker), print_button);
gtk_grid_attach (GTK_GRID (table), picker, 1, 2, 1, 1);
label = gtk_label_new ("URI:");
gtk_widget_set_halign (label, GTK_ALIGN_START);