[polari/wip/fmuellner/debug-instance: 4/4] window: Differentiate debug instances from normal ones

[Gitlab Administrative User <gitlab src gnome org>]

commit 81134f5d51afe944ba9426d38a6b8951d64cf640
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Mar 23 02:20:55 2017 +0100

    window: Differentiate debug instances from normal ones
    
    When running a debug instance alongside the regular Polari instance,
    it is easy to lose track of which is the temporary one. Address this
    by adding some subtle styling hints in the debug instance's title bar.
    
    Fixes https://gitlab.gnome.org/GNOME/polari/issues/24

 data/resources/application.css | 9 +++++++++
 src/mainWindow.js              | 3 +++
 2 files changed, 12 insertions(+)
---
diff --git a/data/resources/application.css b/data/resources/application.css
index 30474c5..c86867b 100644
--- a/data/resources/application.css
+++ b/data/resources/application.css
@@ -202,3 +202,12 @@ treeview.polari-server-room-list {
 /* tweak labels in the user popover */
 .polari-user-popover-nick { font-weight: bold; }
 .polari-user-popover-status { font-size: smaller; }
+
+/* Differentiate debug instance from "normal" ones */
+window.debug headerbar:last-child {
+    background-image: -gtk-icontheme('dialog-warning-symbolic');
+    background-blend-mode: overlay;
+    background-repeat: no-repeat;
+    background-position: 1em center;
+    background-size: 6em;
+}
diff --git a/src/mainWindow.js b/src/mainWindow.js
index c59a3c3..1b95e38 100644
--- a/src/mainWindow.js
+++ b/src/mainWindow.js
@@ -139,6 +139,9 @@ var MainWindow = GObject.registerClass({
         this._overlay.add_overlay(app.notificationQueue);
         this._overlay.add_overlay(app.commandOutputQueue);
 
+        if (app.isDebugInstance)
+            this.get_style_context().add_class('debug');
+
         // command output notifications should not pop up over
         // the input area, but appear to emerge from it, so
         // set up an appropriate margin