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federated-calendar/src/gui/event-editor/gcal-schedule-section.c
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/* gcal-schedule-section.c
*
* Copyright 2020 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
*
* This program 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.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#define G_LOG_DOMAIN "GcalScheduleSection"
#include "gcal-context.h"
#include "gcal-date-selector.h"
#include "gcal-debug.h"
#include "gcal-event.h"
#include "gcal-event-editor-section.h"
#include "gcal-recurrence.h"
#include "gcal-schedule-section.h"
#include "gcal-time-selector.h"
#include "gcal-utils.h"
#include <glib/gi18n.h>
struct _GcalScheduleSection
{
GtkBox parent;
GtkSwitch *all_day_switch;
GtkWidget *end_date_selector;
GtkWidget *end_time_selector;
GtkLabel *event_end_label;
GtkLabel *event_start_label;
GtkWidget *number_of_occurrences_spin;
GtkWidget *repeat_combo;
GtkWidget *repeat_duration_combo;
GtkWidget *start_date_selector;
GtkWidget *start_time_selector;
GtkWidget *until_date_selector;
GcalContext *context;
GcalEvent *event;
GcalEventEditorFlags flags;
};
static void gcal_event_editor_section_iface_init (GcalEventEditorSectionInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GcalScheduleSection, gcal_schedule_section, GTK_TYPE_BOX,
G_IMPLEMENT_INTERFACE (GCAL_TYPE_EVENT_EDITOR_SECTION, gcal_event_editor_section_iface_init))
enum
{
PROP_0,
PROP_CONTEXT,
N_PROPS
};
/*
* Auxiliary methods
*/
static void
find_best_timezones_for_event (GcalScheduleSection *self,
GTimeZone **out_tz_start,
GTimeZone **out_tz_end)
{
gboolean was_all_day;
gboolean all_day;
gboolean new_event;
/* Update all day */
all_day = gtk_switch_get_active (self->all_day_switch);
was_all_day = gcal_event_get_all_day (self->event);
new_event = self->flags & GCAL_EVENT_EDITOR_FLAG_NEW_EVENT;
GCAL_TRACE_MSG ("Finding best timezone with all_day=%d, was_all_day=%d, event_is_new=%d",
all_day,
was_all_day,
new_event);
if (!new_event && was_all_day && !all_day)
{
GCAL_TRACE_MSG ("Using original event timezones");
gcal_event_get_original_timezones (self->event, out_tz_start, out_tz_end);
return;
}
if (all_day)
{
GCAL_TRACE_MSG ("Using UTC timezones");
if (out_tz_start)
*out_tz_start = g_time_zone_new_utc ();
if (out_tz_end)
*out_tz_end = g_time_zone_new_utc ();
}
else
{
g_autoptr (GTimeZone) tz_start = NULL;
g_autoptr (GTimeZone) tz_end = NULL;
if (new_event)
{
GCAL_TRACE_MSG ("Using the local timezone");
tz_start = g_time_zone_new_local ();
tz_end = g_time_zone_new_local ();
}
else
{
GCAL_TRACE_MSG ("Using the current timezones");
tz_start = g_time_zone_ref (g_date_time_get_timezone (gcal_event_get_date_start (self->event)));
tz_end = g_time_zone_ref (g_date_time_get_timezone (gcal_event_get_date_end (self->event)));
}
if (out_tz_start)
*out_tz_start = g_steal_pointer (&tz_start);
if (out_tz_end)
*out_tz_end = g_steal_pointer (&tz_end);
}
}
static GDateTime*
return_datetime_for_widgets (GcalScheduleSection *self,
GTimeZone *timezone,
GcalDateSelector *date_selector,
GcalTimeSelector *time_selector)
{
g_autoptr (GDateTime) date_in_local_tz = NULL;
g_autoptr (GDateTime) date_in_best_tz = NULL;
GDateTime *date;
GDateTime *time;
GDateTime *retval;
gboolean all_day;
all_day = gtk_switch_get_active (self->all_day_switch);
date = gcal_date_selector_get_date (date_selector);
time = gcal_time_selector_get_time (time_selector);
date_in_local_tz = g_date_time_new_local (g_date_time_get_year (date),
g_date_time_get_month (date),
g_date_time_get_day_of_month (date),
all_day ? 0 : g_date_time_get_hour (time),
all_day ? 0 : g_date_time_get_minute (time),
0);
if (all_day)
date_in_best_tz = g_date_time_ref (date_in_local_tz);
else
date_in_best_tz = g_date_time_to_timezone (date_in_local_tz, timezone);
retval = g_date_time_new (timezone,
g_date_time_get_year (date_in_best_tz),
g_date_time_get_month (date_in_best_tz),
g_date_time_get_day_of_month (date_in_best_tz),
all_day ? 0 : g_date_time_get_hour (date_in_best_tz),
all_day ? 0 : g_date_time_get_minute (date_in_best_tz),
0);
return retval;
}
static GDateTime*
get_date_start (GcalScheduleSection *self)
{
g_autoptr (GTimeZone) start_tz = NULL;
find_best_timezones_for_event (self, &start_tz, NULL);
return return_datetime_for_widgets (self,
start_tz,
GCAL_DATE_SELECTOR (self->start_date_selector),
GCAL_TIME_SELECTOR (self->start_time_selector));
}
static GDateTime*
get_date_end (GcalScheduleSection *self)
{
g_autoptr (GTimeZone) end_tz = NULL;
find_best_timezones_for_event (self, NULL, &end_tz);
return return_datetime_for_widgets (self,
end_tz,
GCAL_DATE_SELECTOR (self->end_date_selector),
GCAL_TIME_SELECTOR (self->end_time_selector));
}
static void
remove_recurrence_properties (GcalEvent *event)
{
ECalComponent *comp;
comp = gcal_event_get_component (event);
e_cal_component_set_recurid (comp, NULL);
e_cal_component_set_rrules (comp, NULL);
e_cal_component_commit_sequence (comp);
}
static gchar*
format_datetime_for_display (GDateTime *date,
GcalTimeFormat format,
gboolean all_day)
{
g_autofree gchar *formatted_date = NULL;
g_autoptr (GDateTime) local_dt = NULL;
g_autoptr (GDateTime) now = NULL;
GString *string;
gint days_diff;
string = g_string_new ("");
now = g_date_time_new_now_local ();
local_dt = all_day ? g_date_time_ref (date) : g_date_time_to_local (date);
days_diff = gcal_date_time_compare_date (local_dt, now);
switch (days_diff)
{
case -7 ... -2:
/* Translators: %A is the weekday name (e.g. Sunday, Monday, etc) */
formatted_date = g_date_time_format (local_dt, _("Last %A"));
break;
case -1:
formatted_date = g_strdup (_("Yesterday"));
break;
case 0:
formatted_date = g_strdup (_("Today"));
break;
case 1:
formatted_date = g_strdup (_("Tomorrow"));
break;
case 2 ... 7:
/* Translators: %A is the weekday name (e.g. Sunday, Monday, etc) */
formatted_date = g_date_time_format (local_dt, _("This %A"));
break;
default:
formatted_date = g_date_time_format (local_dt, "%x");
break;
}
if (!all_day)
{
g_autofree gchar *formatted_time = NULL;
switch (format)
{
case GCAL_TIME_FORMAT_12H:
formatted_time = g_date_time_format (local_dt, "%I:%M %P");
break;
case GCAL_TIME_FORMAT_24H:
formatted_time = g_date_time_format (local_dt, "%R");
break;
default:
g_assert_not_reached ();
}
/*
* Translators: %1$s is the formatted date (e.g. Today, Sunday, or even 2019-10-11) and %2$s is the
* formatted time (e.g. 03:14 PM, or 21:29)
*/
g_string_printf (string, _("%1$s, %2$s"), formatted_date, formatted_time);
}
else
{
g_string_printf (string, "%s", formatted_date);
}
return g_string_free (string, FALSE);
}
static void
update_date_labels (GcalScheduleSection *self)
{
g_autofree gchar *start_label = NULL;
g_autofree gchar *end_label = NULL;
g_autoptr (GDateTime) start = NULL;
g_autoptr (GDateTime) end = NULL;
GcalTimeFormat time_format;
gboolean all_day;
time_format = gcal_context_get_time_format (self->context);
all_day = gtk_switch_get_active (self->all_day_switch);
start = get_date_start (self);
end = get_date_end (self);
start_label = format_datetime_for_display (start, time_format, all_day);
end_label = format_datetime_for_display (end, time_format, all_day);
gtk_label_set_label (self->event_start_label, start_label);
gtk_label_set_label (self->event_end_label, end_label);
}
static void
sync_datetimes (GcalScheduleSection *self,
GParamSpec *pspec,
GtkWidget *widget)
{
GDateTime *start, *end, *start_local, *end_local, *new_date;
GtkWidget *date_widget, *time_widget;
gboolean is_start, is_all_day;
GCAL_ENTRY;
is_start = (widget == self->start_time_selector || widget == self->start_date_selector);
is_all_day = gtk_switch_get_active (self->all_day_switch);
start = get_date_start (self);
end = get_date_end (self);
/* The date is valid, no need to update the fields */
if (g_date_time_compare (end, start) >= 0)
GCAL_GOTO (out);
start_local = g_date_time_to_local (start);
end_local = g_date_time_to_local (end);
/*
* If the user is changing the start date or time, we change the end
* date or time (and vice versa).
*/
if (is_start)
{
new_date = is_all_day ? g_date_time_add_hours (start, 0) : g_date_time_add_hours (start_local, 1);
date_widget = self->end_date_selector;
time_widget = self->end_time_selector;
}
else
{
new_date = is_all_day ? g_date_time_add_hours (end, 0) : g_date_time_add_hours (end_local, -1);
date_widget = self->start_date_selector;
time_widget = self->start_time_selector;
}
g_signal_handlers_block_by_func (date_widget, sync_datetimes, self);
g_signal_handlers_block_by_func (time_widget, sync_datetimes, self);
gcal_date_selector_set_date (GCAL_DATE_SELECTOR (date_widget), new_date);
gcal_time_selector_set_time (GCAL_TIME_SELECTOR (time_widget), new_date);
g_signal_handlers_unblock_by_func (date_widget, sync_datetimes, self);
g_signal_handlers_unblock_by_func (time_widget, sync_datetimes, self);
g_clear_pointer (&start_local, g_date_time_unref);
g_clear_pointer (&end_local, g_date_time_unref);
g_clear_pointer (&new_date, g_date_time_unref);
out:
g_clear_pointer (&start, g_date_time_unref);
g_clear_pointer (&end, g_date_time_unref);
update_date_labels (self);
GCAL_EXIT;
}
/*
* Callbacks
*/
static void
on_repeat_duration_changed_cb (GtkComboBox *widget,
GcalScheduleSection *self)
{
gint active = gtk_combo_box_get_active (widget);
gtk_widget_set_visible (self->number_of_occurrences_spin, active == 1);
gtk_widget_set_visible (self->until_date_selector, active == 2);
}
static void
on_repeat_type_changed_cb (GtkComboBox *combobox,
GcalScheduleSection *self)
{
GcalRecurrenceFrequency frequency;
frequency = gtk_combo_box_get_active (combobox);
gtk_combo_box_set_active (GTK_COMBO_BOX (self->repeat_duration_combo), GCAL_RECURRENCE_FOREVER);
gtk_widget_set_visible (self->repeat_duration_combo, frequency != GCAL_RECURRENCE_NO_REPEAT);
}
static void
on_all_day_switch_active_changed_cb (GtkSwitch *all_day_switch,
GParamSpec *pspec,
GcalScheduleSection *self)
{
gboolean active = gtk_switch_get_active (all_day_switch);
gtk_widget_set_sensitive (self->start_time_selector, !active);
gtk_widget_set_sensitive (self->end_time_selector, !active);
update_date_labels (self);
}
static void
on_time_format_changed_cb (GcalScheduleSection *self)
{
GcalTimeFormat time_format;
time_format = gcal_context_get_time_format (self->context);
gcal_time_selector_set_time_format (GCAL_TIME_SELECTOR (self->start_time_selector), time_format);
gcal_time_selector_set_time_format (GCAL_TIME_SELECTOR (self->end_time_selector), time_format);
}
/*
* GcalEventEditorSection interface
*/
static void
gcal_schedule_section_set_event (GcalEventEditorSection *section,
GcalEvent *event,
GcalEventEditorFlags flags)
{
g_autoptr (GDateTime) date_start = NULL;
g_autoptr (GDateTime) date_end = NULL;
GcalRecurrenceLimitType limit_type;
GcalRecurrenceFrequency frequency;
GcalScheduleSection *self;
GcalRecurrence *recur;
gboolean all_day;
GCAL_ENTRY;
self = GCAL_SCHEDULE_SECTION (section);
g_set_object (&self->event, event);
self->flags = flags;
if (!event)
GCAL_RETURN ();
/* Recurrences */
recur = gcal_event_get_recurrence (event);
frequency = recur ? recur->frequency : GCAL_RECURRENCE_NO_REPEAT;
limit_type = recur ? recur->limit_type : GCAL_RECURRENCE_FOREVER;
gtk_combo_box_set_active (GTK_COMBO_BOX (self->repeat_combo), frequency);
gtk_combo_box_set_active (GTK_COMBO_BOX (self->repeat_duration_combo), limit_type);
if (frequency == GCAL_RECURRENCE_NO_REPEAT)
{
gtk_widget_hide (self->repeat_duration_combo);
}
else
{
gtk_widget_show (self->repeat_duration_combo);
gtk_widget_show (self->repeat_duration_combo);
}
switch (limit_type)
{
case GCAL_RECURRENCE_COUNT:
gtk_spin_button_set_value (GTK_SPIN_BUTTON (self->number_of_occurrences_spin), recur->limit.count);
break;
case GCAL_RECURRENCE_UNTIL:
gcal_date_selector_set_date (GCAL_DATE_SELECTOR (self->until_date_selector), recur->limit.until);
break;
case GCAL_RECURRENCE_FOREVER:
gtk_spin_button_set_value (GTK_SPIN_BUTTON (self->number_of_occurrences_spin), 0);
break;
}
all_day = gcal_event_get_all_day (event);
/* retrieve start and end dates */
date_start = gcal_event_get_date_start (event);
date_start = all_day ? g_date_time_ref (date_start) : g_date_time_to_local (date_start);
date_end = gcal_event_get_date_end (event);
/*
* This is subtracting what has been added in action_button_clicked ().
* See bug 769300.
*/
date_end = all_day ? g_date_time_add_days (date_end, -1) : g_date_time_to_local (date_end);
/* date */
g_signal_handlers_block_by_func (self->end_date_selector, sync_datetimes, self);
g_signal_handlers_block_by_func (self->start_date_selector, sync_datetimes, self);
gcal_date_selector_set_date (GCAL_DATE_SELECTOR (self->start_date_selector), date_start);
gcal_date_selector_set_date (GCAL_DATE_SELECTOR (self->end_date_selector), date_end);
g_signal_handlers_unblock_by_func (self->start_date_selector, sync_datetimes, self);
g_signal_handlers_unblock_by_func (self->end_date_selector, sync_datetimes, self);
/* time */
g_signal_handlers_block_by_func (self->end_time_selector, sync_datetimes, self);
g_signal_handlers_block_by_func (self->start_time_selector, sync_datetimes, self);
gcal_time_selector_set_time (GCAL_TIME_SELECTOR (self->start_time_selector), date_start);
gcal_time_selector_set_time (GCAL_TIME_SELECTOR (self->end_time_selector), date_end);
g_signal_handlers_unblock_by_func (self->start_time_selector, sync_datetimes, self);
g_signal_handlers_unblock_by_func (self->end_time_selector, sync_datetimes, self);
/* all_day */
gtk_switch_set_active (self->all_day_switch, all_day);
update_date_labels (self);
GCAL_EXIT;
}
static void
gcal_schedule_section_apply (GcalEventEditorSection *section)
{
g_autoptr (GDateTime) start_date = NULL;
g_autoptr (GDateTime) end_date = NULL;
GcalRecurrenceFrequency freq;
GcalScheduleSection *self;
GcalRecurrence *old_recur;
gboolean was_all_day;
gboolean all_day;
GCAL_ENTRY;
self = GCAL_SCHEDULE_SECTION (section);
all_day = gtk_switch_get_active (self->all_day_switch);
was_all_day = gcal_event_get_all_day (self->event);
if (!was_all_day && all_day)
gcal_event_save_original_timezones (self->event);
/*
* Update start & end dates. The dates are already translated to the current
* timezone (unless the event used to be all day, but no longer is).
*/
start_date = get_date_start (self);
end_date = get_date_end (self);
#ifdef GCAL_ENABLE_TRACE
{
g_autofree gchar *start_dt_string = g_date_time_format (start_date, "%x %X %z");
g_autofree gchar *end_dt_string = g_date_time_format (end_date, "%x %X %z");
g_debug ("New start date: %s", start_dt_string);
g_debug ("New end date: %s", end_dt_string);
}
#endif
gcal_event_set_all_day (self->event, all_day);
/*
* The end date for multi-day events is exclusive, so we bump it by a day.
* This fixes the discrepancy between the end day of the event and how it
* is displayed in the month view. See bug 769300.
*/
if (all_day)
{
GDateTime *fake_end_date = g_date_time_add_days (end_date, 1);
g_clear_pointer (&end_date, g_date_time_unref);
end_date = fake_end_date;
}
else if (!all_day && was_all_day)
{
/* When an all day event is changed to be not an all day event, we
* need to correct for the fact that the event's timezone was until
* now set to UTC. That means we need to change the timezone to
* localtime now, or else it will be saved incorrectly.
*/
GDateTime *localtime_date;
localtime_date = g_date_time_to_local (start_date);
g_clear_pointer (&start_date, g_date_time_unref);
start_date = localtime_date;
localtime_date = g_date_time_to_local (end_date);
g_clear_pointer (&end_date, g_date_time_unref);
end_date = localtime_date;
}
gcal_event_set_date_start (self->event, start_date);
gcal_event_set_date_end (self->event, end_date);
/* Check Repeat popover and set recurrence-rules accordingly */
old_recur = gcal_event_get_recurrence (self->event);
freq = gtk_combo_box_get_active (GTK_COMBO_BOX (self->repeat_combo));
if (freq != GCAL_RECURRENCE_NO_REPEAT)
{
GcalRecurrence *recur;
recur = gcal_recurrence_new ();
recur->frequency = freq;
recur->limit_type = gtk_combo_box_get_active (GTK_COMBO_BOX (self->repeat_duration_combo));
if (recur->limit_type == GCAL_RECURRENCE_UNTIL)
recur->limit.until = gcal_date_selector_get_date (GCAL_DATE_SELECTOR (self->until_date_selector));
else if (recur->limit_type == GCAL_RECURRENCE_COUNT)
recur->limit.count = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (self->number_of_occurrences_spin));
/* Only apply the new recurrence if it's different from the old one */
if (!gcal_recurrence_is_equal (old_recur, recur))
{
/* Remove the previous recurrence... */
remove_recurrence_properties (self->event);
/* ... and set the new one */
gcal_event_set_recurrence (self->event, recur);
}
g_clear_pointer (&recur, gcal_recurrence_unref);
}
else
{
/* When NO_REPEAT is set, make sure to remove the old recurrent */
remove_recurrence_properties (self->event);
}
GCAL_EXIT;
}
static void
gcal_event_editor_section_iface_init (GcalEventEditorSectionInterface *iface)
{
iface->set_event = gcal_schedule_section_set_event;
iface->apply = gcal_schedule_section_apply;
}
/*
* GObject overrides
*/
static void
gcal_schedule_section_finalize (GObject *object)
{
GcalScheduleSection *self = (GcalScheduleSection *)object;
g_clear_object (&self->context);
g_clear_object (&self->event);
G_OBJECT_CLASS (gcal_schedule_section_parent_class)->finalize (object);
}
static void
gcal_schedule_section_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GcalScheduleSection *self = GCAL_SCHEDULE_SECTION (object);
switch (prop_id)
{
case PROP_CONTEXT:
g_value_set_object (value, self->context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gcal_schedule_section_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GcalScheduleSection *self = GCAL_SCHEDULE_SECTION (object);
switch (prop_id)
{
case PROP_CONTEXT:
g_assert (self->context == NULL);
self->context = g_value_dup_object (value);
g_signal_connect_object (self->context,
"notify::time-format",
G_CALLBACK (on_time_format_changed_cb),
self,
G_CONNECT_SWAPPED);
on_time_format_changed_cb (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gcal_schedule_section_class_init (GcalScheduleSectionClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->finalize = gcal_schedule_section_finalize;
object_class->get_property = gcal_schedule_section_get_property;
object_class->set_property = gcal_schedule_section_set_property;
g_object_class_override_property (object_class, PROP_CONTEXT, "context");
g_type_ensure (GCAL_TYPE_DATE_SELECTOR);
g_type_ensure (GCAL_TYPE_TIME_SELECTOR);
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/ui/event-editor/gcal-schedule-section.ui");
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, all_day_switch);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, start_time_selector);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, start_date_selector);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, end_time_selector);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, end_date_selector);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, event_start_label);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, event_end_label);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, number_of_occurrences_spin);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, repeat_combo);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, repeat_duration_combo);
gtk_widget_class_bind_template_child (widget_class, GcalScheduleSection, until_date_selector);
gtk_widget_class_bind_template_callback (widget_class, on_all_day_switch_active_changed_cb);
gtk_widget_class_bind_template_callback (widget_class, on_repeat_duration_changed_cb);
gtk_widget_class_bind_template_callback (widget_class, on_repeat_type_changed_cb);
gtk_widget_class_bind_template_callback (widget_class, sync_datetimes);
}
static void
gcal_schedule_section_init (GcalScheduleSection *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
}
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