From d4868ddeca70ce2a3a4936e5bff41e380ad61b5d Mon Sep 17 00:00:00 2001
From: William Hua <william.hua@canonical.com>
Date: Thu, 10 Apr 2014 11:28:03 +1200
Subject: Use different mouse actions when locked.

---
 lib/indicator-menu.vala | 13 ++++++++++---
 lib/main.vala           | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 3 deletions(-)

(limited to 'lib')

diff --git a/lib/indicator-menu.vala b/lib/indicator-menu.vala
index e321a2d2..8e5661e2 100644
--- a/lib/indicator-menu.vala
+++ b/lib/indicator-menu.vala
@@ -52,10 +52,17 @@ public class Indicator.Keyboard.IndicatorMenu : MenuModel {
 		}
 
 		var indicator = new MenuItem.submenu (null, submenu);
-		indicator.set_attribute ("x-canonical-type", "s", "com.canonical.indicator.root");
-		indicator.set_attribute ("x-canonical-secondary-action", "s", "indicator.next");
-		indicator.set_attribute ("x-canonical-scroll-action", "s", "indicator.scroll");
 		indicator.set_detailed_action ("indicator.indicator");
+		indicator.set_attribute ("x-canonical-type", "s", "com.canonical.indicator.root");
+
+		/* We need special mouse actions on the lock screen. */
+		if ((options & Options.DCONF) != Options.NONE) {
+			indicator.set_attribute ("x-canonical-secondary-action", "s", "indicator.next");
+			indicator.set_attribute ("x-canonical-scroll-action", "s", "indicator.scroll");
+		} else {
+			indicator.set_attribute ("x-canonical-secondary-action", "s", "indicator.locked_next");
+			indicator.set_attribute ("x-canonical-scroll-action", "s", "indicator.locked_scroll");
+		}
 
 		indicator_menu = new Menu ();
 		indicator_menu.append_item (indicator);
diff --git a/lib/main.vala b/lib/main.vala
index 8279b561..8d39d757 100644
--- a/lib/main.vala
+++ b/lib/main.vala
@@ -779,6 +779,48 @@ public class Indicator.Keyboard.Service : Object {
 		}
 	}
 
+	[DBus (visible = false)]
+	private void handle_middle_click_when_locked (Variant? parameter) {
+		handle_scroll_wheel_when_locked (new Variant.int32 (-1));
+	}
+
+	[DBus (visible = false)]
+	private void handle_scroll_wheel_when_locked (Variant? parameter) {
+		if (parameter != null) {
+			var sources = get_sources ();
+			var non_ibus_length = 0;
+
+			/* Figure out how many non-IBus sources we have. */
+			foreach (var source in sources) {
+				if (!source.is_ibus) {
+					non_ibus_length++;
+				}
+			}
+
+			if (non_ibus_length > 1) {
+				var active_action = get_active_action ();
+				var active = active_action.state.get_uint32 ();
+				var offset = -((!) parameter).get_int32 () % non_ibus_length;
+
+				/* Make offset positive modulo non_ibus_length. */
+				if (offset < 0) {
+					offset += non_ibus_length;
+				}
+
+				/* We need to cycle through non-IBus sources only. */
+				while (offset > 0) {
+					do {
+						active = (active + 1) % sources.length;
+					} while (sources[active].is_ibus);
+
+					offset--;
+				}
+
+				active_action.change_state (new Variant.uint32 (active));
+			}
+		}
+	}
+
 	[DBus (visible = false)]
 	protected virtual SimpleActionGroup create_action_group (Action root_action) {
 		var group = new SimpleActionGroup ();
@@ -804,6 +846,14 @@ public class Indicator.Keyboard.Service : Object {
 		action.activate.connect (handle_scroll_wheel);
 		group.add_action (action);
 
+		action = new SimpleAction ("locked_next", null);
+		action.activate.connect (handle_middle_click_when_locked);
+		group.add_action (action);
+
+		action = new SimpleAction ("locked_scroll", VariantType.INT32);
+		action.activate.connect (handle_scroll_wheel_when_locked);
+		group.add_action (action);
+
 		action = new SimpleAction ("map", null);
 		action.activate.connect (handle_activate_map);
 		group.add_action (action);
-- 
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