lua position, size, focus and z-index (not really)

src/lua/view.zig

@@ -0,0 +1,116 @@
+const std = @import("std");
+const zlua = @import("zlua");
+const wlr = @import("wlroots");
+
+const View = @import("../view.zig");
+
+const gpa = std.heap.c_allocator;
+
+const server = &@import("../main.zig").server;
+
+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(1);
+  }
+
+  return 1;
+}
+
+pub fn get_focused_id(L: *zlua.Lua) i32 {
+  if(server.seat.focused_view) |view| {
+    _ = L.pushNumber(@floatFromInt(view.id));
+    return 1;
+  }
+
+  return 0;
+}
+
+pub fn set_position(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  std.log.debug("Starting view reposition", .{});
+
+  if (nargs != 3) {
+    L.raiseErrorStr("Expected 3 arguments, found {d}", .{nargs});
+    return 0;
+  }
+
+  for (1..@intCast(nargs + 1)) |i| {
+    L.checkType(@intCast(i), .number);
+  }
+
+  const view_id: u64 = @as(u64, @intCast(L.toInteger(1) catch unreachable));
+  const x: i32 = @as(i32, @intCast(L.toInteger(2) catch unreachable));
+  const y: i32 = @as(i32, @intCast(L.toInteger(3) catch unreachable));
+
+  const view = server.root.viewById(view_id);
+  if(view == null) {
+    L.raiseErrorStr("View with id {d} does not exist", .{view_id});
+    return 0;
+  }
+
+  view.?.setPosition(x, y);
+
+  return 0;
+}
+
+pub fn set_size(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if (nargs != 3) {
+    L.raiseErrorStr("Expected 3 arguments, found {d}", .{nargs});
+    return 0;
+  }
+
+  for (1..@intCast(nargs + 1)) |i| {
+    L.checkType(@intCast(i), .number);
+  }
+
+  const view_id: u64 = @as(u64, @intCast(L.toInteger(1) catch unreachable));
+  const width: i32 = @as(i32, @intCast(L.toInteger(2) catch unreachable));
+  const height: i32 = @as(i32, @intCast(L.toInteger(3) catch unreachable));
+
+  const view = server.root.viewById(view_id);
+  if(view == null) {
+    L.raiseErrorStr("View with id {d} does not exist", .{view_id});
+    return 0;
+  }
+
+  view.?.setSize(width, height);
+
+  return 0;
+}
+
+pub fn raise_to_top(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if(nargs != 1) {
+    L.raiseErrorStr("Expected 1 arguments, found {d}", .{nargs});
+    return 0;
+  }
+
+  L.checkType(1, .number);
+
+  const view_id: u64 = @intCast(L.toInteger(1) catch unreachable);
+
+  const view = server.root.viewById(view_id);
+  if(view == null) {
+    L.raiseErrorStr("View with id {d} does not exist", .{view_id});
+    return 0;
+  }
+
+  view.?.raiseToTop();
+
+  return 0;
+}