[gitg] diff-view: use unicode triangles to expand/collapse

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 9e50bd6edcec60c50b0289e34efee6a84db384a2
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Wed Dec 24 13:08:50 2014 +0100

    diff-view: use unicode triangles to expand/collapse

 libgitg/resources/diff-view.html |    3 ++-
 libgitg/resources/diff-view.js   |    8 +++++---
 2 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/libgitg/resources/diff-view.html b/libgitg/resources/diff-view.html
index 76744f0..d2e5da0 100644
--- a/libgitg/resources/diff-view.html
+++ b/libgitg/resources/diff-view.html
@@ -22,7 +22,8 @@
           <tbody>
             <tr class="file_header">
               <td colspan="4">
-                <span class="expander">-</span>
+                <!-- BLACK DOWN-POINTING TRIANGLE -->
+                <span class="expander">&#x25BC;</span>
                 <!-- ${FILE_STATS} -->
                 <span class="file_path"><!-- ${FILE_PATH} --></span>
               </td>
diff --git a/libgitg/resources/diff-view.js b/libgitg/resources/diff-view.js
index 589b5ce..9ce9839 100644
--- a/libgitg/resources/diff-view.js
+++ b/libgitg/resources/diff-view.js
@@ -246,17 +246,19 @@ function expand_collapse()
        var expander = $(this);
 
        // If expanded, will be true
-       var toExpand = expander.text() == "+";
+       var toExpand = expander.text() == "\u25B6";
 
        if (toExpand)
        {
                // next step to close it
-               expander.text("-");
+               // BLACK DOWN-POINTING TRIANGLE
+               expander.text("\u25BC");
        }
        else
        {
                // next step is to open it
-               expander.text("+");
+               // BLACK RIGHT-POINTING TRIANGLE
+               expander.text("\u25B6");
        }
 
        expander.closest('tbody').toggleClass("collapsed");