making mouse movements only reported to widgets in raleigh if they request it, and making it continue while the mouse is outside the widget (but inside the window)

1 files changed, 12 insertions, 4 deletions

diff --git a/src/user/raleigh/window.cpp b/src/user/raleigh/window.cpp
index 8501f7e..b99346d 100644
--- a/src/user/raleigh/window.cpp
+++ b/src/user/raleigh/window.cpp
@@ -7,7 +7,7 @@
 namespace raleigh {
   window::window(widget &root, _pixel_t bg_color, bool (*on_close)(window &))
     : handle(0), size(root.size), root(root), focussed(&root),
-      bg_color(bg_color), on_close(on_close) {
+      drag_reciever(0), bg_color(bg_color), on_close(on_close) {
     root.w = this;
     root.window_offset = coord(0, 0);
     root.notify_window_change();
@@ -41,8 +41,11 @@ namespace raleigh {
       got = GOOD;
       if (wa.action_type == wa.MOUSE_DOWN)
         root.handle_click(coord(wa.as_mouse.x, wa.as_mouse.y), wa.as_mouse.which, false);
-      else if (wa.action_type == wa.MOUSE_UP)
+      else if (wa.action_type == wa.MOUSE_UP) {
+        if (drag_reciever && (wa.as_mouse.which == drag_until))
+          drag_reciever = 0;
         root.handle_click(coord(wa.as_mouse.x, wa.as_mouse.y), wa.as_mouse.which, true);
+      }
       else if (wa.action_type == wa.KEY_DOWN) {
         for (dllist<duple<struct key_packet, void (*)(window &)>>::node *n = keybinds.first; n; n = n->next)
           if (match_side_agnostic(wa.as_key, n->d.a)) {
@@ -57,8 +60,8 @@ namespace raleigh {
         focussed->on_focus();
       else if (wa.action_type == wa.FOCUS_LEAVE)
         focussed->on_unfocus();
-      else if (wa.action_type == wa.MOUSE_MOVE)
-        root.on_mouse_move(coord(wa.moved_to.x, wa.moved_to.y));
+      else if (drag_reciever && (wa.action_type == wa.MOUSE_MOVE))
+        drag_reciever->on_mouse_move(coord(wa.moved_to.x, wa.moved_to.y));
     }
   }
 
@@ -112,4 +115,9 @@ namespace raleigh {
   void window::add_keybind(struct key_packet kp, void (*handler)(window &)) {
     keybinds.add_front(duple<struct key_packet, void (*)(window &)>(kp, handler));
   }
+
+  void window::notify_wants_movements(widget &from, enum mouse_packet::mouse_button while_down) {
+    drag_reciever = &from;
+    drag_until = while_down;
+  }
 }
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