[gnome-sound-recorder] Improve filename assignment

[Meg Ford (Margaret) <megford src gnome org>]

commit cb49c83df59e8610d882815e76c6010cdcc0c1f1
Author: Meg Ford <megford gnome org>
Date:   Sun Feb 1 14:24:59 2015 -0600

    Improve filename assignment
    
    Parse the names of the existing filenames, and add one if there
    is a name with a > number. Else get the number from 0 + 1.

 src/listview.js |    7 +++++++
 src/record.js   |    2 +-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/listview.js b/src/listview.js
index 3bce9ed..cc95abc 100644
--- a/src/listview.js
+++ b/src/listview.js
@@ -106,6 +106,13 @@ const Listview = new Lang.Class({
                         files.forEach(Lang.bind(this,
                             function(file) {
                                 let returnedName = file.get_attribute_as_string("standard::display-name");
+                                try {
+                                    let returnedNumber = parseInt(returnedName.split(" ")[1]);
+                                    if (returnedNumber > trackNumber)
+                                        trackNumber = returnedNumber;
+                                }  catch (e if e instanceof TypeError) {
+                                    // Don't handle the error
+                                }
                                 let finalFileName = GLib.build_filenamev([this._saveDir.get_path(),
                                                                           returnedName]);
                                 let fileUri = GLib.filename_to_uri(finalFileName, null);
diff --git a/src/record.js b/src/record.js
index a9ef43a..697df3e 100644
--- a/src/record.js
+++ b/src/record.js
@@ -311,7 +311,7 @@ const BuildFileName = new Lang.Class({
         let fileExtensionName = MainWindow.audioProfile.fileExtensionReturner();
         let dir = Gio.Application.get_default().saveDir;
         this.dateTime = GLib.DateTime.new_now_local();
-        this.clipNumber = Listview.allFilesInfo.length + 1;
+        this.clipNumber = Listview.trackNumber + 1;
         this.clipNumberString = this.clipNumber.toString();
         /* Translators: ""Clip %d"" is the default name assigned to a file created
             by the application (for example, "Clip 1"). */