[gitg] Add setting to collapse all files in diff by default

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 62eb3fc7e6140a7accca07f439db157f5b09ac90
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Fri Aug 7 09:11:30 2015 +0200

    Add setting to collapse all files in diff by default

 libgitg/gitg-diff-view.vala                 |    2 +
 libgitg/resources/ui/diff-view/diff-view.js |   31 ++++++++++++++++++++-------
 2 files changed, 25 insertions(+), 8 deletions(-)
---
diff --git a/libgitg/gitg-diff-view.vala b/libgitg/gitg-diff-view.vala
index 3372f61..6b5c437 100644
--- a/libgitg/gitg-diff-view.vala
+++ b/libgitg/gitg-diff-view.vala
@@ -135,6 +135,7 @@ namespace Gitg
                public bool staged { get; set; default = false; }
                public bool unstaged { get; set; default = false; }
                public bool show_parents { get; set; default = false; }
+               public bool default_collapse_all { get; set; default = true; }
 
                private bool d_use_gravatar;
 
@@ -257,6 +258,7 @@ namespace Gitg
                        o.set_boolean_member("debug", Environment.get_variable("GITG_GTK_DIFF_VIEW_DEBUG") != 
null);
                        o.set_boolean_member("changes_inline", changes_inline);
                        o.set_boolean_member("show_parents", show_parents);
+                       o.set_boolean_member("default_collapse_all", default_collapse_all);
                        o.set_string_member("parent", d_parent);
                        o.set_boolean_member("use_gravatar", use_gravatar);
 
diff --git a/libgitg/resources/ui/diff-view/diff-view.js b/libgitg/resources/ui/diff-view/diff-view.js
index 89c3096..8ee721e 100644
--- a/libgitg/resources/ui/diff-view/diff-view.js
+++ b/libgitg/resources/ui/diff-view/diff-view.js
@@ -23,6 +23,7 @@ var default_settings = {
        unstaged: false,
        show_parents: false,
        use_gravatar: true,
+       default_collapse_all: true,
        strings: {
                stage: 'stage',
                unstage: 'unstage',
@@ -332,7 +333,11 @@ function expand_collapse()
        }
 
        expander.closest('tbody').toggleClass("collapsed");
+       collapsed_changed();
+}
 
+function collapsed_changed()
+{
        var all = $("#diff_content div.file tbody");
        var prevCollapsed = false;
        var allUncollapsed = true;
@@ -611,6 +616,20 @@ function expand_collapse_all()
        $(this).text(collapse ? "\u25B6" : "\u25BC")
 }
 
+function default_collapse_all()
+{
+       var expanders = document.querySelectorAll("#diff_content div.file:not(.background) .expander");
+
+       // Collapse by default if more than one file
+       if (expanders && expanders.length > 1)
+       {
+               for (var i = 0; i < expanders.length; i++)
+               {
+                       expand_collapse.call(expanders[i]);
+               }
+       }
+}
+
 function update_diff(id, lsettings)
 {
        if (html_builder_worker)
@@ -688,17 +707,13 @@ function update_diff(id, lsettings)
                        content.html(event.data.diff_html);
                        update_has_selection();
 
-                       var expanders = document.querySelectorAll("#diff_content div.file:not(.background) 
.expander");
-
-                       // Collapse by default if more than one file
-                       if (expanders && expanders.length > 1)
+                       if (settings.default_collapse_all)
                        {
-                               for (var i = 0; i < expanders.length; i++)
-                               {
-                                       expand_collapse.call(expanders[i]);
-                               }
+                               default_collapse_all();
                        }
 
+                       collapsed_changed();
+
                        $("#diff_content div.file tr.file_header td").click(function() {
                                expand_collapse.call($(this).find(".expander"));
                        });