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Add tracking of active child

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This commit is contained in:
Alexander Larsson 2012-05-16 11:22:13 +02:00
parent 3eba7f363e
commit cb626d6da8
1 changed files with 32 additions and 12 deletions
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44
egg-list-box.vala
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@ -38,8 +38,10 @@ public class Egg.ListBox : Container {
private unowned ChildInfo? selected_child;
private unowned ChildInfo? prelight_child;
private unowned ChildInfo? cursor_child;
bool active_child_active;
private unowned ChildInfo? active_child;
private SelectionMode selection_mode;
public ListBox () {
set_can_focus (true);
@ -140,7 +142,7 @@ public class Egg.ListBox : Container {
private int do_sort (ChildInfo? a, ChildInfo? b) {
return sort_func (a.widget, b.widget);
}
[Signal (action=true)]
public virtual signal void activate_cursor_child () {
select_and_activate (cursor_child);
@ -358,12 +360,21 @@ public class Egg.ListBox : Container {
}
}
private void update_active (ChildInfo? child) {
bool val = active_child == child;
if (active_child != null && val != active_child_active) {
active_child_active = val;
queue_draw ();
}
}
public override bool enter_notify_event (Gdk.EventCrossing event) {
if (event.window != get_window ())
return false;
unowned ChildInfo? child = find_child_at_y ((int)event.y);
update_prelight (child);
update_active (child);
return false;
}
@ -372,12 +383,14 @@ public class Egg.ListBox : Container {
if (event.window != get_window ())
return false;
unowned ChildInfo? child;
if (event.detail != Gdk.NotifyType.INFERIOR) {
update_prelight (null);
child = null;
} else {
unowned ChildInfo? child = find_child_at_y ((int)event.y);
update_prelight (child);
child = find_child_at_y ((int)event.y);
}
update_prelight (child);
update_active (child);
return false;
}
@ -385,15 +398,19 @@ public class Egg.ListBox : Container {
public override bool motion_notify_event (Gdk.EventMotion event) {
unowned ChildInfo? child = find_child_at_y ((int)event.y);
update_prelight (child);
update_active (child);
return false;
}
private Widget? button_down_child;
public override bool button_press_event (Gdk.EventButton event) {
if (event.button == 1) {
unowned ChildInfo? child = find_child_at_y ((int)event.y);
if (child != null)
button_down_child = child.widget;
if (child != null) {
active_child = child;
active_child_active = true;
queue_draw ();
}
/* TODO: Should mark as active while down, and handle grab breaks */
}
@ -402,10 +419,11 @@ public class Egg.ListBox : Container {
public override bool button_release_event (Gdk.EventButton event) {
if (event.button == 1) {
unowned ChildInfo? child = find_child_at_y ((int)event.y);
if (child != null && child.widget == button_down_child)
select_and_activate (child);
button_down_child = null;
if (active_child != null && active_child_active)
select_and_activate (active_child);
active_child = null;
active_child_active = false;
queue_draw ();
}
return false;
}
@ -733,6 +751,8 @@ public class Egg.ListBox : Container {
prelight_child = null;
if (info == cursor_child)
cursor_child = null;
if (info == active_child)
active_child = null;
var next = get_next_visible (info.iter);