status/keyboard: Factor out a KeyboardManager class

This code will grow in a forthcoming patch so let's move it out. https://bugzilla.gnome.org/show_bug.cgi?id=736435
2014-02-14 16:11:28 +01:00
parent 58aabfcf5b
commit 8e560f98d1
3 changed files with 79 additions and 43 deletions
--- a/js/misc/keyboardManager.js
+++ b/js/misc/keyboardManager.js
@ -0,0 +1,71 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+
+const Gio = imports.gi.Gio;
+const GnomeDesktop = imports.gi.GnomeDesktop;
+const Lang = imports.lang;
+
+const Main = imports.ui.main;
+
+let _xkbInfo = null;
+
+function getXkbInfo() {
+    if (_xkbInfo == null)
+        _xkbInfo = new GnomeDesktop.XkbInfo();
+    return _xkbInfo;
+}
+
+let _keyboardManager = null;
+
+function getKeyboardManager() {
+    if (_keyboardManager == null)
+        _keyboardManager = new KeyboardManager();
+    return _keyboardManager;
+}
+
+function releaseKeyboard() {
+    if (Main.modalCount > 0)
+        global.display.unfreeze_keyboard(global.get_current_time());
+    else
+        global.display.ungrab_keyboard(global.get_current_time());
+}
+
+function holdKeyboard() {
+    global.freeze_keyboard(global.get_current_time());
+}
+
+const KeyboardManager = new Lang.Class({
+    Name: 'KeyboardManager',
+
+    // This is the longest we'll keep the keyboard frozen until an input
+    // source is active.
+    _MAX_INPUT_SOURCE_ACTIVATION_TIME: 4000, // ms
+
+    _BUS_NAME: 'org.gnome.SettingsDaemon.Keyboard',
+    _OBJECT_PATH: '/org/gnome/SettingsDaemon/Keyboard',
+
+    _INTERFACE: '\
+        <node> \
+        <interface name="org.gnome.SettingsDaemon.Keyboard"> \
+            <method name="SetInputSource"> \
+                <arg type="u" direction="in" /> \
+            </method> \
+        </interface> \
+        </node>',
+
+    _init: function() {
+        let Proxy = Gio.DBusProxy.makeProxyWrapper(this._INTERFACE);
+        this._proxy = new Proxy(Gio.DBus.session,
+                                this._BUS_NAME,
+                                this._OBJECT_PATH,
+                                function(proxy, error) {
+                                    if (error)
+                                        log(error.message);
+                                });
+        this._proxy.g_default_timeout = this._MAX_INPUT_SOURCE_ACTIVATION_TIME;
+    },
+
+    SetInputSource: function(is) {
+        holdKeyboard();
+        this._proxy.SetInputSourceRemote(is.index, releaseKeyboard);
+    }
+});