[sushi] mainWindow: log an error when failing to call prepare()

[Cosimo Cecchi <cosimoc src gnome org>]

commit 72da47462f94d7918f831bf23396357ef65b329e
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sat Feb 15 17:40:07 2014 -0800

    mainWindow: log an error when failing to call prepare()
    
    Instead of failing silently.

 src/js/ui/mainWindow.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/js/ui/mainWindow.js b/src/js/ui/mainWindow.js
index 2804add..1358b9e 100644
--- a/src/js/ui/mainWindow.js
+++ b/src/js/ui/mainWindow.js
@@ -316,6 +316,7 @@ MainWindow.prototype = {
                             this._pendingRenderer.prepare(file, this, Lang.bind(this, 
this._onRendererPrepared));
                         } catch(e) {
                             /* FIXME: report the error */
+                            logError(e, 'Error calling prepare() on viewer');
                         }}));
     },