File gnome-shell-jsc#SLE-16051-Input-method-recommendation.patch of Package gnome-shell

diff -Nura gnome-shell-40.0/js/ui/status/keyboard.js gnome-shell-40.0_new/js/ui/status/keyboard.js
--- gnome-shell-40.0/js/ui/status/keyboard.js	2021-03-20 20:17:01.436522500 +0800
+++ gnome-shell-40.0_new/js/ui/status/keyboard.js	2021-03-30 20:02:18.835931202 +0800
@@ -264,6 +264,39 @@
         this._settings.connect('changed::%s'.format(this._KEY_INPUT_SOURCES), this._emitInputSourcesChanged.bind(this));
         this._settings.connect('changed::%s'.format(this._KEY_KEYBOARD_OPTIONS), this._emitKeyboardOptionsChanged.bind(this));
         this._settings.connect('changed::%s'.format(this._KEY_PER_WINDOW), this._emitPerWindowChanged.bind(this));
+
+        let sources = this._settings.get_value(this._KEY_INPUT_SOURCES);
+        let nSources = sources.n_children();
+        let sourcesList = [];
+
+        if (nSources <= 1) {
+            if (GLib.getenv('LANG') == 'zh_CN.UTF-8') {
+                log('Set default input method in Chinese language env.');
+                sourcesList.push(['xkb', 'cn']);
+                sourcesList.push([ "ibus", "libpinyin" ]);
+
+                let params = GLib.Variant.new('a(ss)', sourcesList);
+                this._settings.set_value(this._KEY_INPUT_SOURCES, params);
+            }
+
+            else if (GLib.getenv('LANG') == 'ja_JP.UTF-8') {
+                log('Set default input method in Japanese language env.');
+                sourcesList.push([ "ibus", "mozc-jp" ]);
+                sourcesList.push(['xkb', 'jp']);
+
+                let params = GLib.Variant.new('a(ss)', sourcesList);
+                this._settings.set_value(this._KEY_INPUT_SOURCES, params);
+            }
+
+            else if (GLib.getenv('LANG') == 'ko_KR.UTF-8') {
+                log('Set default input method in Korean language env.');
+                sourcesList.push(['xkb', 'kr']);
+                sourcesList.push([ "ibus", "hangul" ]);
+
+                let params = GLib.Variant.new('a(ss)', sourcesList);
+                this._settings.set_value(this._KEY_INPUT_SOURCES, params);
+            }
+        }
     }
 
     _getSourcesList(key) {
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