[gnome-shell/wip/lantw/ibusManager-Fix-the-panel-after-porting-to-Promises] ibusManager: Fix the panel after porting to Promises

[Ting-Wei Lan <lantw src gnome org>]

commit 2b4fa28add6b1cc5195ceea779ac1602c4c3d372
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Sun May 3 23:23:13 2020 +0800

    ibusManager: Fix the panel after porting to Promises
    
    Commit 764527c8c9b7659901eb6296a6859ae2b0eabdb8 not only ports this file
    to Promises but also changes the behavior of _initPanelService method.
    Instead of always calling _updateReadiness when _panelService is ready,
    it only calls it when get_global_engine_async succeeds.
    
    The only callers of _updateReadiness are _initEngines and
    _initPanelService. Assume that _initEngines completes first. Its
    _updateReadiness call keeps _ready as false and it is expected for
    _initPanelService to change it to true. However, since
    get_global_engine_async fails because there is no active engine,
    _initPanelService never calls _updateReadiness. Therefore, all setEngine
    calls do nothing because _ready is false, and the input method panel
    never shows. Users are unable to use any input method even if they can
    see that ibus-daemon is already running.
    
    Fix the issue by changing it back to the old behavior.

 js/misc/ibusManager.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/misc/ibusManager.js b/js/misc/ibusManager.js
index e8cfead2ce..d9a9a9d602 100644
--- a/js/misc/ibusManager.js
+++ b/js/misc/ibusManager.js
@@ -171,13 +171,13 @@ var IBusManager = class {
             this._panelService.connect('set-content-type', this._setContentType.bind(this));
         } catch (e) {
         }
+        this._updateReadiness();
 
         try {
             // If an engine is already active we need to get its properties
             const engine =
                 await this._ibus.get_global_engine_async(-1, this._cancellable);
             this._engineChanged(this._ibus, engine.get_name());
-            this._updateReadiness();
         } catch (e) {
         }
     }