[geary/geary-0.12] Fix composer body text caret not being visible on reply. Bug 788797.

[Michael Gratton <mjog src gnome org>]

commit 5f74d3992a2ff9b13f7881fd64b29430b756ba58
Author: Michael James Gratton <mike vee net>
Date:   Thu Nov 16 12:49:49 2017 +1100

    Fix composer body text caret not being visible on reply. Bug 788797.
    
    * src/client/composer/composer-widget.vala (ComposerWidget::set_focus):
      Ensure we grab the web view's focus only after its content has finished
      loading.

 src/client/composer/composer-widget.vala |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/src/client/composer/composer-widget.vala b/src/client/composer/composer-widget.vala
index 509ab5b..5b842e6 100644
--- a/src/client/composer/composer-widget.vala
+++ b/src/client/composer/composer-widget.vala
@@ -810,8 +810,15 @@ public class ComposerWidget : Gtk.EventBox {
             this.to_entry.grab_focus();
         else if (not_compact && Geary.String.is_empty(subject))
             this.subject_entry.grab_focus();
-        else
-            this.editor.grab_focus();
+        else {
+            // Need to grab the focus after the content has finished
+            // loading otherwise the text caret will not be visible.
+            if (this.editor.is_content_loaded) {
+                this.editor.grab_focus();
+            } else {
+                this.editor.content_loaded.connect(() => { this.editor.grab_focus(); });
+            }
+        }
     }
 
     // Initializes all actions and adds them to the action group