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https://gitlab.gnome.org/GNOME/gtk.git
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f4f683a469
Make it more clear that the function is supposed to be called during the dispose sequence of a widget.
518 lines
16 KiB
C
518 lines
16 KiB
C
/*
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* Copyright © 2018 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkmediacontrols.h"
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#include "gtkadjustment.h"
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#include "gtkbutton.h"
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#include "gtkintl.h"
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#include "gtklabel.h"
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#include "gtkwidgetprivate.h"
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/**
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* GtkMediaControls:
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*
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* `GtkMediaControls` is a widget to show controls for a video.
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*
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* 
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*
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* Usually, `GtkMediaControls` is used as part of [class@Gtk.Video].
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*/
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struct _GtkMediaControls
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{
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GtkWidget parent_instance;
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GtkMediaStream *stream;
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GtkAdjustment *time_adjustment;
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GtkAdjustment *volume_adjustment;
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GtkWidget *box;
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GtkWidget *play_button;
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GtkWidget *time_box;
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GtkWidget *time_label;
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GtkWidget *seek_scale;
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GtkWidget *duration_label;
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GtkWidget *volume_button;
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};
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enum
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{
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PROP_0,
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PROP_MEDIA_STREAM,
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N_PROPS
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};
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G_DEFINE_TYPE (GtkMediaControls, gtk_media_controls, GTK_TYPE_WIDGET)
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static GParamSpec *properties[N_PROPS] = { NULL, };
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/* FIXME: Remove
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* See https://bugzilla.gnome.org/show_bug.cgi?id=679850 */
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static char *
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totem_time_to_string (gint64 usecs,
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gboolean remaining,
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gboolean force_hour)
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{
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int sec, min, hour, _time;
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_time = (int) (usecs / G_USEC_PER_SEC);
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/* When calculating the remaining time,
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* we want to make sure that:
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* current time + time remaining = total run time */
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if (remaining)
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_time++;
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sec = _time % 60;
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_time = _time - sec;
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min = (_time % (60*60)) / 60;
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_time = _time - (min * 60);
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hour = _time / (60*60);
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if (hour > 0 || force_hour) {
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if (!remaining) {
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/* hour:minutes:seconds */
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/* Translators: This is a time format, like "9:05:02" for 9
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* hours, 5 minutes, and 2 seconds. You may change ":" to
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* the separator that your locale uses or use "%Id" instead
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* of "%d" if your locale uses localized digits.
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*/
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return g_strdup_printf (C_("long time format", "%d:%02d:%02d"), hour, min, sec);
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} else {
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/* -hour:minutes:seconds */
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/* Translators: This is a time format, like "-9:05:02" for 9
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* hours, 5 minutes, and 2 seconds playback remaining. You may
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* change ":" to the separator that your locale uses or use
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* "%Id" instead of "%d" if your locale uses localized digits.
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*/
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return g_strdup_printf (C_("long time format", "-%d:%02d:%02d"), hour, min, sec);
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}
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}
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if (remaining) {
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/* -minutes:seconds */
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/* Translators: This is a time format, like "-5:02" for 5
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* minutes and 2 seconds playback remaining. You may change
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* ":" to the separator that your locale uses or use "%Id"
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* instead of "%d" if your locale uses localized digits.
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*/
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return g_strdup_printf (C_("short time format", "-%d:%02d"), min, sec);
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}
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/* minutes:seconds */
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/* Translators: This is a time format, like "5:02" for 5
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* minutes and 2 seconds. You may change ":" to the
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* separator that your locale uses or use "%Id" instead of
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* "%d" if your locale uses localized digits.
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*/
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return g_strdup_printf (C_("short time format", "%d:%02d"), min, sec);
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}
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static void
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time_adjustment_changed (GtkAdjustment *adjustment,
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GtkMediaControls *controls)
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{
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if (controls->stream == NULL)
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return;
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/* We just updated the adjustment and it's correct now */
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if (gtk_adjustment_get_value (adjustment) == (double) gtk_media_stream_get_timestamp (controls->stream) / G_USEC_PER_SEC)
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return;
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gtk_media_stream_seek (controls->stream,
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gtk_adjustment_get_value (adjustment) * G_USEC_PER_SEC + 0.5);
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}
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static void
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volume_adjustment_changed (GtkAdjustment *adjustment,
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GtkMediaControls *controls)
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{
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if (controls->stream == NULL)
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return;
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/* We just updated the adjustment and it's correct now */
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if (gtk_adjustment_get_value (adjustment) == gtk_media_stream_get_volume (controls->stream))
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return;
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gtk_media_stream_set_muted (controls->stream, gtk_adjustment_get_value (adjustment) == 0.0);
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gtk_media_stream_set_volume (controls->stream, gtk_adjustment_get_value (adjustment));
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}
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static void
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play_button_clicked (GtkWidget *button,
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GtkMediaControls *controls)
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{
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if (controls->stream == NULL)
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return;
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gtk_media_stream_set_playing (controls->stream,
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!gtk_media_stream_get_playing (controls->stream));
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}
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static void
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gtk_media_controls_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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GtkMediaControls *controls = GTK_MEDIA_CONTROLS (widget);
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gtk_widget_measure (controls->box,
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orientation,
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for_size,
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minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void
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gtk_media_controls_size_allocate (GtkWidget *widget,
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int width,
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int height,
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int baseline)
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{
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GtkMediaControls *controls = GTK_MEDIA_CONTROLS (widget);
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gtk_widget_size_allocate (controls->box,
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&(GtkAllocation) {
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0, 0,
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width, height
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}, baseline);
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}
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static void
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gtk_media_controls_dispose (GObject *object)
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{
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GtkMediaControls *controls = GTK_MEDIA_CONTROLS (object);
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gtk_media_controls_set_media_stream (controls, NULL);
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gtk_widget_dispose_template (GTK_WIDGET (object), GTK_TYPE_MEDIA_CONTROLS);
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G_OBJECT_CLASS (gtk_media_controls_parent_class)->dispose (object);
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}
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static void
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gtk_media_controls_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkMediaControls *controls = GTK_MEDIA_CONTROLS (object);
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switch (property_id)
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{
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case PROP_MEDIA_STREAM:
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g_value_set_object (value, controls->stream);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gtk_media_controls_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkMediaControls *controls = GTK_MEDIA_CONTROLS (object);
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switch (property_id)
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{
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case PROP_MEDIA_STREAM:
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gtk_media_controls_set_media_stream (controls, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gtk_media_controls_class_init (GtkMediaControlsClass *klass)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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widget_class->measure = gtk_media_controls_measure;
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widget_class->size_allocate = gtk_media_controls_size_allocate;
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gobject_class->dispose = gtk_media_controls_dispose;
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gobject_class->get_property = gtk_media_controls_get_property;
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gobject_class->set_property = gtk_media_controls_set_property;
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/**
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* GtkMediaControls:media-stream: (attributes org.gtk.Property.get=gtk_media_controls_get_media_stream org.gtk.Property.set=gtk_media_controls_set_media_stream)
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*
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* The media-stream managed by this object or %NULL if none.
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*/
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properties[PROP_MEDIA_STREAM] =
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g_param_spec_object ("media-stream", NULL, NULL,
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GTK_TYPE_MEDIA_STREAM,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (gobject_class, N_PROPS, properties);
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gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkmediacontrols.ui");
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, time_adjustment);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, volume_adjustment);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, box);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, play_button);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, time_box);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, time_label);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, seek_scale);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, duration_label);
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gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, volume_button);
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gtk_widget_class_bind_template_callback (widget_class, play_button_clicked);
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gtk_widget_class_bind_template_callback (widget_class, time_adjustment_changed);
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gtk_widget_class_bind_template_callback (widget_class, volume_adjustment_changed);
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gtk_widget_class_set_css_name (widget_class, I_("controls"));
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}
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static void
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gtk_media_controls_init (GtkMediaControls *controls)
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{
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gtk_widget_init_template (GTK_WIDGET (controls));
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}
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/**
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* gtk_media_controls_new:
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* @stream: (nullable) (transfer none): a `GtkMediaStream` to manage
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*
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* Creates a new `GtkMediaControls` managing the @stream passed to it.
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*
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* Returns: a new `GtkMediaControls`
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*/
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GtkWidget *
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gtk_media_controls_new (GtkMediaStream *stream)
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{
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return g_object_new (GTK_TYPE_MEDIA_CONTROLS,
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"media-stream", stream,
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NULL);
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}
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/**
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* gtk_media_controls_get_media_stream: (attributes org.gtk.Method.get_property=media-stream)
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* @controls: a `GtkMediaControls`
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*
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* Gets the media stream managed by @controls or %NULL if none.
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*
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* Returns: (nullable) (transfer none): The media stream managed by @controls
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*/
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GtkMediaStream *
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gtk_media_controls_get_media_stream (GtkMediaControls *controls)
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{
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g_return_val_if_fail (GTK_IS_MEDIA_CONTROLS (controls), NULL);
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return controls->stream;
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}
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static void
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update_timestamp (GtkMediaControls *controls)
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{
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gint64 timestamp, duration;
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char *time_string;
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if (controls->stream)
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{
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timestamp = gtk_media_stream_get_timestamp (controls->stream);
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duration = gtk_media_stream_get_duration (controls->stream);
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}
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else
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{
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timestamp = 0;
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duration = 0;
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}
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time_string = totem_time_to_string (timestamp, FALSE, FALSE);
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gtk_label_set_text (GTK_LABEL (controls->time_label), time_string);
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g_free (time_string);
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if (duration > 0)
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{
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time_string = totem_time_to_string (duration > timestamp ? duration - timestamp : 0, TRUE, FALSE);
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gtk_label_set_text (GTK_LABEL (controls->duration_label), time_string);
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g_free (time_string);
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gtk_adjustment_set_value (controls->time_adjustment, (double) timestamp / G_USEC_PER_SEC);
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}
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}
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static void
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update_duration (GtkMediaControls *controls)
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{
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gint64 timestamp, duration;
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char *time_string;
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if (controls->stream)
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{
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timestamp = gtk_media_stream_get_timestamp (controls->stream);
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duration = gtk_media_stream_get_duration (controls->stream);
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}
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else
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{
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timestamp = 0;
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duration = 0;
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}
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time_string = totem_time_to_string (duration > timestamp ? duration - timestamp : 0, TRUE, FALSE);
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gtk_label_set_text (GTK_LABEL (controls->duration_label), time_string);
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gtk_widget_set_visible (controls->duration_label, duration > 0);
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g_free (time_string);
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gtk_adjustment_set_upper (controls->time_adjustment,
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gtk_adjustment_get_page_size (controls->time_adjustment)
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+ (double) duration / G_USEC_PER_SEC);
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gtk_adjustment_set_value (controls->time_adjustment, (double) timestamp / G_USEC_PER_SEC);
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}
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static void
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update_playing (GtkMediaControls *controls)
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{
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gboolean playing;
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const char *icon_name;
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if (controls->stream)
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playing = gtk_media_stream_get_playing (controls->stream);
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else
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playing = FALSE;
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if (playing)
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icon_name = "media-playback-pause-symbolic";
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else
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icon_name = "media-playback-start-symbolic";
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gtk_button_set_icon_name (GTK_BUTTON (controls->play_button), icon_name);
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}
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static void
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update_seekable (GtkMediaControls *controls)
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{
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gboolean seekable;
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if (controls->stream)
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seekable = gtk_media_stream_is_seekable (controls->stream);
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else
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seekable = FALSE;
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gtk_widget_set_sensitive (controls->seek_scale, seekable);
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}
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static void
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update_volume (GtkMediaControls *controls)
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{
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double volume;
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if (controls->stream == NULL)
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volume = 1.0;
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else if (gtk_media_stream_get_muted (controls->stream))
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volume = 0.0;
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else
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volume = gtk_media_stream_get_volume (controls->stream);
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gtk_adjustment_set_value (controls->volume_adjustment, volume);
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gtk_widget_set_sensitive (controls->volume_button,
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controls->stream == NULL ||
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gtk_media_stream_has_audio (controls->stream));
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}
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static void
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update_all (GtkMediaControls *controls)
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{
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update_timestamp (controls);
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update_duration (controls);
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update_playing (controls);
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update_seekable (controls);
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update_volume (controls);
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}
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static void
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gtk_media_controls_notify_cb (GtkMediaStream *stream,
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GParamSpec *pspec,
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GtkMediaControls *controls)
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{
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if (g_str_equal (pspec->name, "timestamp"))
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update_timestamp (controls);
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else if (g_str_equal (pspec->name, "duration"))
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update_duration (controls);
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else if (g_str_equal (pspec->name, "playing"))
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update_playing (controls);
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else if (g_str_equal (pspec->name, "seekable"))
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update_seekable (controls);
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else if (g_str_equal (pspec->name, "muted"))
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update_volume (controls);
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else if (g_str_equal (pspec->name, "volume"))
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update_volume (controls);
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else if (g_str_equal (pspec->name, "has-audio"))
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update_volume (controls);
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}
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/**
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* gtk_media_controls_set_media_stream: (attributes org.gtk.Method.set_property=media-stream)
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* @controls: a `GtkMediaControls` widget
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* @stream: (nullable): a `GtkMediaStream`
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*
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* Sets the stream that is controlled by @controls.
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*/
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void
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gtk_media_controls_set_media_stream (GtkMediaControls *controls,
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GtkMediaStream *stream)
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{
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g_return_if_fail (GTK_IS_MEDIA_CONTROLS (controls));
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g_return_if_fail (stream == NULL || GTK_IS_MEDIA_STREAM (stream));
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if (controls->stream == stream)
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return;
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if (controls->stream)
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{
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g_signal_handlers_disconnect_by_func (controls->stream,
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gtk_media_controls_notify_cb,
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controls);
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g_object_unref (controls->stream);
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controls->stream = NULL;
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}
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if (stream)
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{
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controls->stream = g_object_ref (stream);
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g_signal_connect (controls->stream,
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"notify",
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G_CALLBACK (gtk_media_controls_notify_cb),
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controls);
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}
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update_all (controls);
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gtk_widget_set_sensitive (controls->box, stream != NULL);
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g_object_notify_by_pspec (G_OBJECT (controls), properties[PROP_MEDIA_STREAM]);
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|
}
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