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From 9bbb9289477c8a61a641b0b67cec367629f1e73a Mon Sep 17 00:00:00 2001
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From: Milan Crha <mcrha@redhat.com>
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Date: Thu, 10 Feb 2022 11:59:36 +0100
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Subject: [PATCH] ECompEditor: Timezone can be reset on component save
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The libical 3.0.14 contains a change, which unsets non-UTC timezones
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in date/time values. That uncovered a bug in the Evolution code, which
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expects the timezone will be preserved on re-read from the component,
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but it's not always possible. This is corrected by re-setting the timezone
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on the used ICalTime value.
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---
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src/calendar/gui/e-comp-editor-property-part.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/src/calendar/gui/e-comp-editor-property-part.c b/src/calendar/gui/e-comp-editor-property-part.c
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index 6bed833b12..6ce699a2e6 100644
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--- a/src/calendar/gui/e-comp-editor-property-part.c
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+++ b/src/calendar/gui/e-comp-editor-property-part.c
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@@ -913,8 +913,15 @@ ecepp_datetime_fill_component (ECompEditorPropertyPart *property_part,
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g_object_unref (prop);
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}
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} else {
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+ ICalTimezone *zone;
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+
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value = e_comp_editor_property_part_datetime_get_value (part_datetime);
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+ zone = value && !i_cal_time_is_null_time (value) ? i_cal_time_get_timezone (value) : NULL;
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+
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+ if (zone)
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+ g_object_ref (zone);
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+
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if (prop) {
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/* Remove the VALUE parameter, to correspond to the actual value being set */
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i_cal_property_remove_parameter_by_kind (prop, I_CAL_VALUE_PARAMETER);
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@@ -925,6 +932,11 @@ ecepp_datetime_fill_component (ECompEditorPropertyPart *property_part,
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g_clear_object (&value);
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value = klass->i_cal_get_func (prop);
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+ /* The timezone can be dropped since libical 3.0.14, thus restore it
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+ before updating the TZID parameter */
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+ if (zone && value && !i_cal_time_is_null_time (value) && !i_cal_time_is_date (value))
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+ i_cal_time_set_timezone (value, zone);
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+
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cal_comp_util_update_tzid_parameter (prop, value);
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} else {
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prop = klass->i_cal_new_func (value);
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@@ -933,12 +945,18 @@ ecepp_datetime_fill_component (ECompEditorPropertyPart *property_part,
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g_clear_object (&value);
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value = klass->i_cal_get_func (prop);
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+ /* The timezone can be dropped since libical 3.0.14, thus restore it
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+ before updating the TZID parameter */
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+ if (zone && value && !i_cal_time_is_null_time (value) && !i_cal_time_is_date (value))
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+ i_cal_time_set_timezone (value, zone);
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+
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cal_comp_util_update_tzid_parameter (prop, value);
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i_cal_component_add_property (component, prop);
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}
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g_clear_object (&value);
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g_clear_object (&prop);
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+ g_clear_object (&zone);
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}
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}
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--
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2.33.1
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