[evolution/wip/jtojnar/libgweather4] M!102 - Port to libgweather4

[Jan Tojnar <jtojnar src gnome org>]

commit b90b937008090ce6547e37d2c20e70307730b513
Author: Jan Tojnar <jtojnar gmail com>
Date:   Sat Feb 19 01:52:52 2022 +0100

    M!102 - Port to libgweather4
    
    Adds support for linking against gweather4 (pass -DWITH_GWEATHER4=ON).
    
    Closes https://gitlab.gnome.org/GNOME/evolution/-/merge_requests/102

 CMakeLists.txt                                     | 10 ++++-
 config.h.in                                        |  3 ++
 .../cal-config-weather/e-weather-location-entry.c  | 44 ++++++++++++++++++++++
 .../evolution-cal-config-weather.c                 | 36 +++++++++++++++++-
 4 files changed, 90 insertions(+), 3 deletions(-)
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7247d65f16..1ba2165b4d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,6 +92,7 @@ set(geocode_glib_minimum_version 3.10)
 set(gladeui_minimum_version 3.10.0)
 set(gnome_autoar_minimum_version 0.1.1)
 set(gweather_minimum_version 3.10)
+set(gweather4_minimum_version 3.91.0)
 set(libcanberra_gtk_minimum_version 0.25)
 set(libnotify_minimum_version 0.7)
 set(libunity_minimum_version 7.1.4)
@@ -668,7 +669,14 @@ endif(ENABLE_TEXT_HIGHLIGHT)
 add_printable_option(ENABLE_WEATHER "Enable weather calendars" ON)
 
 if(ENABLE_WEATHER)
-       pkg_check_modules_for_option(ENABLE_WEATHER "weather calendar" GWEATHER 
gweather-3.0>=${gweather_minimum_version})
+       add_printable_variable(WITH_GWEATHER4 "Use GWeather 4 instead of 3" OFF)
+
+       if(WITH_GWEATHER4)
+               pkg_check_modules_for_option(ENABLE_WEATHER "weather calendar" GWEATHER 
gweather4>=${gweather4_minimum_version})
+       else(WITH_GWEATHER4)
+               pkg_check_modules_for_option(ENABLE_WEATHER "weather calendar" GWEATHER 
gweather-3.0>=${gweather_minimum_version})
+       endif(WITH_GWEATHER4)
+
        pkg_check_modules_for_option(ENABLE_WEATHER "weather calendar" GEO 
geocode-glib-1.0>=${geocode_glib_minimum_version})
 endif(ENABLE_WEATHER)
 
diff --git a/config.h.in b/config.h.in
index 881641355a..2b520a96bd 100644
--- a/config.h.in
+++ b/config.h.in
@@ -93,6 +93,9 @@
 /* When defined GSpell usage is enabled */
 #cmakedefine HAVE_GSPELL 1
 
+/* Defined when linking against gweather4. Cannot just use GWEATHER_CHECK_VERSION because 40.0 made the 
versions non-monotonic. */
+#cmakedefine WITH_GWEATHER4 1
+
 /* Source code highlighting utility */
 #cmakedefine HIGHLIGHT_COMMAND "@HIGHLIGHT_COMMAND@"
 
diff --git a/src/modules/cal-config-weather/e-weather-location-entry.c 
b/src/modules/cal-config-weather/e-weather-location-entry.c
index f4fb48c403..ff2cb92d2b 100644
--- a/src/modules/cal-config-weather/e-weather-location-entry.c
+++ b/src/modules/cal-config-weather/e-weather-location-entry.c
@@ -125,9 +125,17 @@ finalize (GObject *object)
        priv = entry->priv;
 
        if (priv->location)
+               #ifdef WITH_GWEATHER4
+               g_object_unref (priv->location);
+               #else
                gweather_location_unref (priv->location);
+               #endif
        if (priv->top)
+               #ifdef WITH_GWEATHER4
+               g_object_unref (priv->top);
+               #else
                gweather_location_unref (priv->top);
+               #endif
        if (priv->model)
                g_object_unref (priv->model);
 
@@ -321,7 +329,11 @@ set_location_internal (EWeatherLocationEntry *entry,
        priv = entry->priv;
 
        if (priv->location)
+               #ifdef WITH_GWEATHER4
+               g_object_unref (priv->location);
+               #else
                gweather_location_unref (priv->location);
+               #endif
 
        g_return_if_fail (iter == NULL || loc == NULL);
 
@@ -334,7 +346,11 @@ set_location_internal (EWeatherLocationEntry *entry,
                priv->custom_text = FALSE;
                g_free (name);
        } else if (loc) {
+               #ifdef WITH_GWEATHER4
+               priv->location = g_object_ref (loc);
+               #else
                priv->location = gweather_location_ref (loc);
+               #endif
                gtk_entry_set_text (GTK_ENTRY (entry), gweather_location_get_name (loc));
                priv->custom_text = FALSE;
        } else {
@@ -384,11 +400,19 @@ e_weather_location_entry_set_location (EWeatherLocationEntry *entry,
                                    -1);
                if (gweather_location_equal (loc, cmploc)) {
                        set_location_internal (entry, model, &iter, NULL);
+                       #ifdef WITH_GWEATHER4
+                       g_object_unref (cmploc);
+                       #else
                        gweather_location_unref (cmploc);
+                       #endif
                        return;
                }
 
+               #ifdef WITH_GWEATHER4
+               g_object_unref (cmploc);
+               #else
                gweather_location_unref (cmploc);
+               #endif
        } while (gtk_tree_model_iter_next (model, &iter));
 
        set_location_internal (entry, model, NULL, loc);
@@ -411,7 +435,11 @@ e_weather_location_entry_get_location (EWeatherLocationEntry *entry)
        g_return_val_if_fail (E_WEATHER_IS_LOCATION_ENTRY (entry), NULL);
 
        if (entry->priv->location)
+               #ifdef WITH_GWEATHER4
+               return g_object_ref (entry->priv->location);
+               #else
                return gweather_location_ref (entry->priv->location);
+               #endif
        else
                return NULL;
 }
@@ -474,14 +502,22 @@ e_weather_location_entry_set_city (EWeatherLocationEntry *entry,
 
                cmpcode = gweather_location_get_code (cmploc);
                if (!cmpcode || strcmp (cmpcode, code) != 0) {
+                       #ifdef WITH_GWEATHER4
+                       g_object_unref (cmploc);
+                       #else
                        gweather_location_unref (cmploc);
+                       #endif
                        continue;
                }
 
                if (city_name) {
                        cmpname = gweather_location_get_city_name (cmploc);
                        if (!cmpname || strcmp (cmpname, city_name) != 0) {
+                               #ifdef WITH_GWEATHER4
+                               g_object_unref (cmploc);
+                               #else
                                gweather_location_unref (cmploc);
+                               #endif
                                g_free (cmpname);
                                continue;
                        }
@@ -489,7 +525,11 @@ e_weather_location_entry_set_city (EWeatherLocationEntry *entry,
                }
 
                set_location_internal (entry, model, &iter, NULL);
+               #ifdef WITH_GWEATHER4
+               g_object_unref (cmploc);
+               #else
                gweather_location_unref (cmploc);
+               #endif
                return TRUE;
        } while (gtk_tree_model_iter_next (model, &iter));
 
@@ -611,7 +651,11 @@ fill_location_entry_model (GtkListStore *store,
                break;
        }
 
+       #ifdef WITH_GWEATHER4
+       g_clear_object (&child);
+       #else
        g_clear_pointer (&child, gweather_location_unref);
+       #endif
 }
 
 static gchar *
diff --git a/src/modules/cal-config-weather/evolution-cal-config-weather.c 
b/src/modules/cal-config-weather/evolution-cal-config-weather.c
index 423d6e2357..f36486b44b 100644
--- a/src/modules/cal-config-weather/evolution-cal-config-weather.c
+++ b/src/modules/cal-config-weather/evolution-cal-config-weather.c
@@ -75,7 +75,11 @@ cal_config_weather_location_to_string (GBinding *binding,
        location = g_value_get_boxed (source_value);
        #if GWEATHER_CHECK_VERSION(3, 39, 0)
        if (location)
+               #ifdef WITH_GWEATHER4
+               g_object_ref (location);
+               #else
                gweather_location_ref (location);
+               #endif
        #endif
 
        while (location && !gweather_location_has_coords (location)) {
@@ -83,7 +87,11 @@ cal_config_weather_location_to_string (GBinding *binding,
                GWeatherLocation *child = location;
 
                location = gweather_location_get_parent (child);
+               #ifdef WITH_GWEATHER4
+               g_object_ref (child);
+               #else
                gweather_location_unref (child);
+               #endif
                #else
                location = gweather_location_get_parent (location);
                #endif
@@ -101,7 +109,9 @@ cal_config_weather_location_to_string (GBinding *binding,
 
                string = g_strdup_printf ("%s/%s", lat_str, lon_str);
 
-               #if GWEATHER_CHECK_VERSION(3, 39, 0)
+               #ifdef WITH_GWEATHER4
+               g_object_ref (location);
+               #elif GWEATHER_CHECK_VERSION(3, 39, 0)
                gweather_location_unref (location);
                #endif
        }
@@ -134,7 +144,11 @@ cal_config_weather_find_location_by_coords (GWeatherLocation *start,
                gweather_location_get_coords (location, &lat, &lon);
 
                if (lat == latitude && lon == longitude) {
+                       #ifdef WITH_GWEATHER4
+                       g_object_ref (location);
+                       #else
                        gweather_location_ref (location);
+                       #endif
                        return location;
                }
        }
@@ -145,7 +159,11 @@ cal_config_weather_find_location_by_coords (GWeatherLocation *start,
 
                result = cal_config_weather_find_location_by_coords (child, latitude, longitude);
                if (result) {
+                       #ifdef WITH_GWEATHER4
+                       g_object_ref (child);
+                       #else
                        gweather_location_unref (child);
+                       #endif
                        return result;
                }
        }
@@ -154,7 +172,11 @@ cal_config_weather_find_location_by_coords (GWeatherLocation *start,
        for (ii = 0; children[ii]; ii++) {
                location = cal_config_weather_find_location_by_coords (children[ii], latitude, longitude);
                if (location) {
+                       #ifdef WITH_GWEATHER4
+                       g_object_ref (location);
+                       #else
                        gweather_location_ref (location);
+                       #endif
                        return location;
                }
        }
@@ -320,8 +342,16 @@ cal_config_weather_insert_widgets (ESourceConfigBackend *backend,
                G_BINDING_SYNC_CREATE,
                cal_config_weather_string_to_location,
                cal_config_weather_location_to_string,
+               #ifdef WITH_GWEATHER4
+               g_object_ref (world),
+               #else
                gweather_location_ref (world),
+               #endif
+               #ifdef WITH_GWEATHER4
+               (GDestroyNotify) g_object_ref);
+               #else
                (GDestroyNotify) gweather_location_unref);
+               #endif
 
        e_binding_bind_property (
                extension, "units",
@@ -329,7 +359,9 @@ cal_config_weather_insert_widgets (ESourceConfigBackend *backend,
                G_BINDING_BIDIRECTIONAL |
                G_BINDING_SYNC_CREATE);
 
-#if GWEATHER_CHECK_VERSION(3, 39, 0)
+#ifdef WITH_GWEATHER4
+       g_object_ref (world);
+#elif GWEATHER_CHECK_VERSION(3, 39, 0)
        gweather_location_unref (world);
 #endif
 }