1 files changed, 83 insertions, 0 deletions
diff --git a/src/UnityProgressBar.vala b/src/UnityProgressBar.vala
new file mode 100644
index 0000000..fcf36bc
--- /dev/null
+++ b/src/UnityProgressBar.vala
@@ -0,0 +1,83 @@
+/* Copyright 2010-2014 Yorba Foundation
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+#if UNITY_SUPPORT
+public class UnityProgressBar : Object {
+
+    private static Unity.LauncherEntry l = Unity.LauncherEntry.get_for_desktop_id("shotwell.desktop");
+    private static UnityProgressBar? visible_uniprobar;
+
+    private double progress;
+    private bool visible;
+
+    public static UnityProgressBar get_instance() {
+        if (visible_uniprobar == null) {
+            visible_uniprobar = new UnityProgressBar();
+        }
+
+        return visible_uniprobar;
+    }
+
+    private UnityProgressBar() {
+        progress = 0.0;
+        visible = false;
+    }
+
+    ~UnityProgressBar () {
+        reset_progress_bar();
+    }
+    
+    public double get_progress () {
+        return progress;
+    }
+    
+    public void set_progress (double percent) {
+        progress = percent;
+        update_visibility();
+    }
+
+    private void update_visibility () {
+        set_progress_bar(this, progress);
+    }
+    
+    public bool get_visible () {
+        return visible;
+    }
+    
+    public void set_visible (bool visible) {
+        this.visible = visible;
+
+        if (!visible) {
+            //if not visible and currently displayed, remove Unity progress bar
+            reset_progress_bar();
+        } else {
+            //update_visibility if this progress bar wants to be drawn
+            update_visibility();            
+        }
+    }
+
+    public void reset () {
+        set_visible(false);
+        progress = 0.0;
+    }
+    
+    private static void set_progress_bar (UnityProgressBar uniprobar, double percent) {
+        //set new visible ProgressBar
+        visible_uniprobar = uniprobar;
+        if (!l.progress_visible)
+            l.progress_visible = true;
+        l.progress = percent;
+    }
+    
+    private static void reset_progress_bar () {
+        //reset to default values
+        visible_uniprobar = null;
+        l.progress = 0.0;
+        l.progress_visible = false;
+    }
+}
+
+#endif