viewById works again, layer still ontop of other things

src/lua/View.zig

@@ -0,0 +1,166 @@
+const std = @import("std");
+const zlua = @import("zlua");
+
+const View = @import("../View.zig");
+
+const server = &@import("../main.zig").server;
+
+// ---@alias view_id integer
+
+// ---Get the ids for all available views
+// ---@return view_id[]?
+pub fn get_all_ids(L: *zlua.Lua) i32 {
+  var it = server.root.scene.tree.children.iterator(.forward);
+  var index: usize = 1;
+
+  L.newTable();
+
+  while(it.next()) |node| : (index += 1) {
+    if(node.data == null) continue;
+
+    const view = @as(*View, @ptrCast(@alignCast(node.data.?)));
+
+    L.pushInteger(@intCast(index));
+    L.pushInteger(@intCast(view.id));
+    L.setTable(-3);
+  }
+
+  return 1;
+}
+
+pub fn check(L: *zlua.Lua) i32 {
+  L.pushNil();
+  return 1;
+}
+
+// ---Get the id for the focused view
+// ---@return view_id?
+pub fn get_focused_id(L: *zlua.Lua) i32 {
+  if(server.seat.focused_view) |view| {
+    L.pushInteger(@intCast(view.id));
+    return 1;
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---Close the view with view_id
+// ---@param view_id view_id 0 maps to focused view
+pub fn close(L: *zlua.Lua) i32 {
+  const view_id: u64 = @intCast(L.checkInteger(1));
+
+  const view: ?*View = if (view_id == 0) server.seat.focused_view else server.root.viewById(view_id);
+  if(view) |v| {
+    v.close();
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---position the view by it's top left corner
+// ---@param view_id view_id 0 maps to focused view
+// ---@param x number x position for view
+// ---@param y number y position for view
+pub fn set_position(L: *zlua.Lua) i32 {
+  std.log.debug("repositioning", .{});
+
+  const view_id: u64 = @intCast(L.checkInteger(1));
+  const x: i32 = @intFromFloat(@round(L.checkNumber(2)));
+  const y: i32 = @intFromFloat(@round(L.checkNumber(3)));
+
+  std.log.debug("position to set: ({d}, {d})", .{x, y});
+
+  const view: ?*View = if (view_id == 0) server.seat.focused_view else server.root.viewById(view_id);
+  if(view) |v| {
+    v.setPosition(x, y);
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---Resize the view by it's top left corner
+// ---@param view_id view_id 0 maps to focused view
+// ---@param width number width for view
+// ---@param height number height for view
+pub fn set_size(L: *zlua.Lua) i32 {
+  const view_id: u64 = @intCast(L.checkInteger(1));
+  const width: i32 = @intFromFloat(@round(L.checkNumber(2)));
+  const height: i32 = @intFromFloat(@round(L.checkNumber(3)));
+
+  const view: ?*View = if (view_id == 0) server.seat.focused_view else server.root.viewById(view_id);
+  if(view) |v| {
+    v.setSize(width, height);
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---Remove focus from current view, and set to given id
+// ---@param view_id view_id Id of the view to be focused, or nil to remove focus
+pub fn set_focused(L: *zlua.Lua) i32 {
+  const view_id: ?c_longlong = L.optInteger(1);
+
+  if(view_id == null) {
+    if(server.seat.focused_view != null) {
+      server.seat.focused_view.?.focused = false;
+      server.seat.focused_view = null;
+    }
+    L.pushNil();
+    return 1;
+  }
+
+  if(server.root.viewById(@intCast(view_id.?))) |view| {
+    view.setFocused();
+    L.pushNil();
+    return 1;
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---Get the title of the view
+// ---@param view_id view_id 0 maps to focused view
+// ---@return string?
+pub fn get_title(L: *zlua.Lua) i32 {
+  const view_id: u64 = @intCast(L.checkInteger(1));
+
+  const view: ?*View = if (view_id == 0) server.seat.focused_view else server.root.viewById(view_id);
+  if(view) |v| {
+    if(v.xdg_toplevel.title == null) {
+      L.pushNil();
+      return 1;
+    }
+
+    _ = L.pushString(std.mem.span(v.xdg_toplevel.title.?));
+    return 1;
+  }
+
+  L.pushNil();
+  return 1;
+}
+
+// ---Get the app_id of the view
+// ---@param view_id view_id 0 maps to focused view
+// ---@return string?
+pub fn get_app_id(L: *zlua.Lua) i32 {
+  const view_id: u64 = @intCast(L.checkInteger(1));
+
+  const view: ?*View = if (view_id == 0) server.seat.focused_view else server.root.viewById(view_id);
+  if(view) |v| {
+    if(v.xdg_toplevel.app_id == null) {
+      L.pushNil();
+      return 1;
+    }
+
+    _ = L.pushString(std.mem.span(v.xdg_toplevel.app_id.?));
+    return 1;
+  }
+
+  L.pushNil();
+  return 1;
+}