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demo: Add ability to cancel capture operation

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This commit is contained in:
Benjamin Berg
2019-07-08 23:51:12 +02:00
parent d184a7662c
commit 0b4f682233
2 changed files with 251 additions and 191 deletions
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38
demo/gtk-libfprint-test.c
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@@ -39,10 +39,13 @@ typedef struct {
GtkWidget *header_bar;
GtkWidget *mode_stack;
GtkWidget *capture_button;
GtkWidget *cancel_button;
GtkWidget *capture_image;
GtkWidget *spinner;
GtkWidget *instructions;
GCancellable *cancellable;
gboolean opened;
FpDevice *dev;
@@ -219,10 +222,13 @@ dev_capture_start_cb (FpDevice *dev,
LibfprintDemoWindow *win = user_data;
FpImage *image = NULL;
g_clear_object (&win->cancellable);
image = fp_device_capture_finish (dev, res, &error);
if (!image) {
g_warning ("Error capturing data: %s", error->message);
if (error->domain == FP_DEVICE_RETRY)
if (error->domain == FP_DEVICE_RETRY ||
g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
libfprint_demo_set_mode (win, RETRY_MODE);
else
libfprint_demo_set_mode (win, ERROR_MODE);
@@ -241,7 +247,7 @@ dev_start_capture (LibfprintDemoWindow *win)
{
libfprint_demo_set_capture_label (win);
fp_device_capture (win->dev, TRUE, NULL, (GAsyncReadyCallback) dev_capture_start_cb, win);
fp_device_capture (win->dev, TRUE, win->cancellable, (GAsyncReadyCallback) dev_capture_start_cb, win);
}
static void
@@ -269,6 +275,9 @@ activate_capture (GSimpleAction *action,
libfprint_demo_set_mode (win, SPINNER_MODE);
g_clear_pointer (&win->img, g_object_unref);
g_clear_object (&win->cancellable);
win->cancellable = g_cancellable_new ();
if (win->opened) {
dev_start_capture (win);
return;
@@ -277,7 +286,20 @@ activate_capture (GSimpleAction *action,
libfprint_demo_set_spinner_label (win, "Opening fingerprint reader");
win->opened = TRUE;
fp_device_open (win->dev, NULL, (GAsyncReadyCallback) dev_open_cb, user_data);
fp_device_open (win->dev, win->cancellable, (GAsyncReadyCallback) dev_open_cb, user_data);
}
static void
cancel_capture (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
LibfprintDemoWindow *win = user_data;
g_debug ("cancelling %p", win->cancellable);
if (win->cancellable)
g_cancellable_cancel (win->cancellable);
}
static void
@@ -368,7 +390,8 @@ static GActionEntry app_entries[] = {
static GActionEntry win_entries[] = {
{ "show-minutiae", activate_show_minutiae, NULL, "false", change_show_minutiae_state },
{ "show-binary", activate_show_binary, NULL, "false", change_show_binary_state },
{ "capture", activate_capture, NULL, NULL, NULL }
{ "capture", activate_capture, NULL, NULL, NULL },
{ "cancel", cancel_capture, NULL, NULL, NULL }
};
static void
@@ -392,16 +415,19 @@ libfprint_demo_set_mode (LibfprintDemoWindow *win,
case EMPTY_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "empty-mode");
gtk_widget_set_sensitive (win->capture_button, FALSE);
gtk_widget_set_sensitive (win->cancel_button, FALSE);
gtk_spinner_stop (GTK_SPINNER (win->spinner));
break;
case NOIMAGING_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "noimaging-mode");
gtk_widget_set_sensitive (win->capture_button, FALSE);
gtk_widget_set_sensitive (win->cancel_button, FALSE);
gtk_spinner_stop (GTK_SPINNER (win->spinner));
break;
case CAPTURE_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "capture-mode");
gtk_widget_set_sensitive (win->capture_button, TRUE);
gtk_widget_set_sensitive (win->cancel_button, FALSE);
title = g_strdup_printf ("%s Test", fp_device_get_name (win->dev));
gtk_header_bar_set_title (GTK_HEADER_BAR (win->header_bar), title);
@@ -412,16 +438,19 @@ libfprint_demo_set_mode (LibfprintDemoWindow *win,
case SPINNER_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "spinner-mode");
gtk_widget_set_sensitive (win->capture_button, FALSE);
gtk_widget_set_sensitive (win->cancel_button, TRUE);
gtk_spinner_start (GTK_SPINNER (win->spinner));
break;
case ERROR_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "error-mode");
gtk_widget_set_sensitive (win->capture_button, FALSE);
gtk_widget_set_sensitive (win->cancel_button, FALSE);
gtk_spinner_stop (GTK_SPINNER (win->spinner));
break;
case RETRY_MODE:
gtk_stack_set_visible_child_name (GTK_STACK (win->mode_stack), "retry-mode");
gtk_widget_set_sensitive (win->capture_button, TRUE);
gtk_widget_set_sensitive (win->cancel_button, FALSE);
gtk_spinner_stop (GTK_SPINNER (win->spinner));
break;
default:
@@ -490,6 +519,7 @@ libfprint_demo_window_class_init (LibfprintDemoWindowClass *class)
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, header_bar);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, mode_stack);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, capture_button);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, cancel_button);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, capture_image);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, spinner);
gtk_widget_class_bind_template_child (widget_class, LibfprintDemoWindow, instructions);