[evolution/wip/webkit2] Bug 761159 - Try to preserve selection between calendar views



commit 5bd0d087ee6a1cf3a365f335d47e6bbe10d81fec
Author: Milan Crha <mcrha redhat com>
Date:   Tue Feb 16 16:50:14 2016 +0100

    Bug 761159 - Try to preserve selection between calendar views

 modules/calendar/e-cal-shell-content.c |   55 ++++++++++++++++++++++++++++++-
 1 files changed, 53 insertions(+), 2 deletions(-)
---
diff --git a/modules/calendar/e-cal-shell-content.c b/modules/calendar/e-cal-shell-content.c
index f00a672..740ba42 100644
--- a/modules/calendar/e-cal-shell-content.c
+++ b/modules/calendar/e-cal-shell-content.c
@@ -68,6 +68,9 @@ struct _ECalShellContentPrivate {
        guint32 view_start_range_day_offset;
        GDate last_range_start; /* because "date-range-changed" can be emit with no real change */
 
+       time_t previous_selected_start_time;
+       time_t previous_selected_end_time;
+
        gulong current_view_id_changed_id;
 };
 
@@ -580,8 +583,18 @@ cal_shell_content_current_view_id_changed_cb (ECalShellContent *cal_shell_conten
        model = e_cal_base_shell_content_get_model (E_CAL_BASE_SHELL_CONTENT (cal_shell_content));
        work_day_first = e_cal_model_get_work_day_first (model);
        week_start_day = e_cal_model_get_week_start_day (model);
-       sel_start = cal_shell_content->priv->view_start;
-       sel_end = cal_shell_content->priv->view_end;
+
+       if (cal_shell_content->priv->previous_selected_start_time != -1 &&
+           cal_shell_content->priv->previous_selected_end_time != -1) {
+               icaltimezone *zone;
+
+               zone = e_cal_model_get_timezone (model);
+               time_to_gdate_with_zone (&sel_start, cal_shell_content->priv->previous_selected_start_time, 
zone);
+               time_to_gdate_with_zone (&sel_end, cal_shell_content->priv->previous_selected_end_time, zone);
+       } else {
+               sel_start = cal_shell_content->priv->view_start;
+               sel_end = cal_shell_content->priv->view_end;
+       }
 
        switch (cal_shell_content->priv->current_view) {
                case E_CAL_VIEW_KIND_DAY:
@@ -625,6 +638,22 @@ cal_shell_content_current_view_id_changed_cb (ECalShellContent *cal_shell_conten
 
        /* Ensure a change */
        e_cal_shell_content_change_view (cal_shell_content, cal_shell_content->priv->current_view, 
&sel_start, &sel_end, TRUE);
+
+       /* Try to preserve selection between the views */
+       if (cal_shell_content->priv->previous_selected_start_time != -1 &&
+           cal_shell_content->priv->previous_selected_end_time != -1) {
+               if (cal_shell_content->priv->current_view >= E_CAL_VIEW_KIND_DAY &&
+                   cal_shell_content->priv->current_view < E_CAL_VIEW_KIND_LAST) {
+                       ECalendarView *cal_view = 
cal_shell_content->priv->views[cal_shell_content->priv->current_view];
+
+                       e_calendar_view_set_selected_time_range (cal_view,
+                               cal_shell_content->priv->previous_selected_start_time,
+                               cal_shell_content->priv->previous_selected_end_time);
+               }
+       }
+
+       cal_shell_content->priv->previous_selected_start_time = -1;
+       cal_shell_content->priv->previous_selected_end_time = -1;
 }
 
 static void
@@ -1093,6 +1122,9 @@ cal_shell_content_notify_work_day_cb (ECalModel *model,
            work_day_last == g_date_get_weekday (&cal_shell_content->priv->view_end))
                return;
 
+       cal_shell_content->priv->previous_selected_start_time = -1;
+       cal_shell_content->priv->previous_selected_end_time = -1;
+
        /* This makes sure that the selection in the datepicker corresponds
           to the time range used in the Work Week view */
        cal_shell_content_current_view_id_changed_cb (cal_shell_content);
@@ -1106,6 +1138,9 @@ cal_shell_content_notify_week_start_day_cb (ECalModel *model,
        g_return_if_fail (E_IS_CAL_MODEL (model));
        g_return_if_fail (E_IS_CAL_SHELL_CONTENT (cal_shell_content));
 
+       cal_shell_content->priv->previous_selected_start_time = -1;
+       cal_shell_content->priv->previous_selected_end_time = -1;
+
        /* This makes sure that the selection in the datepicker corresponds
           to the time range used in the current view */
        cal_shell_content_current_view_id_changed_cb (cal_shell_content);
@@ -1787,6 +1822,8 @@ e_cal_shell_content_init (ECalShellContent *cal_shell_content)
        g_date_set_time_t (&cal_shell_content->priv->view_end, now);
 
        cal_shell_content->priv->view_start_range_day_offset = (guint32) -1;
+       cal_shell_content->priv->previous_selected_start_time = -1;
+       cal_shell_content->priv->previous_selected_end_time = -1;
 }
 
 void
@@ -1879,6 +1916,7 @@ void
 e_cal_shell_content_set_current_view_id (ECalShellContent *cal_shell_content,
                                         ECalViewKind view_kind)
 {
+       time_t start_time = -1, end_time = -1;
        gint ii;
 
        g_return_if_fail (E_IS_CAL_SHELL_CONTENT (cal_shell_content));
@@ -1887,6 +1925,19 @@ e_cal_shell_content_set_current_view_id (ECalShellContent *cal_shell_content,
        if (cal_shell_content->priv->current_view == view_kind)
                return;
 
+       if (cal_shell_content->priv->current_view >= E_CAL_VIEW_KIND_DAY &&
+           cal_shell_content->priv->current_view < E_CAL_VIEW_KIND_LAST) {
+               ECalendarView *cal_view = 
cal_shell_content->priv->views[cal_shell_content->priv->current_view];
+
+               if (!e_calendar_view_get_selected_time_range (cal_view, &start_time, &end_time)) {
+                       start_time = -1;
+                       end_time = -1;
+               }
+       }
+
+       cal_shell_content->priv->previous_selected_start_time = start_time;
+       cal_shell_content->priv->previous_selected_end_time = end_time;
+
        for (ii = 0; ii < E_CAL_VIEW_KIND_LAST; ii++) {
                ECalendarView *cal_view = cal_shell_content->priv->views[ii];
                gboolean in_focus = ii == view_kind;


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