basic data retrieval output api and some more view api

.editorconfig

@@ -10,3 +10,8 @@ insert_final_newline = true
 indent_style = space
 indent_size = 2
 trim_trailing_whitespace = true
+
+[*.lua]
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true

runtime/share/mezzaluna/init.lua

@@ -10,16 +10,11 @@ end
 mez.path.config = mez.fs.joinpath(env_conf, "mez", "init.lua")
 package.path = package.path..";"..mez.fs.joinpath(env_conf, "mez", "lua", "?.lua")
 
--- this is an example
-mez.input.add_keymap("alt", "a", {
-  press = function()
-    print("hello from my keymap")
-  end
-})
-
 mez.input.add_keymap("alt", "Return", {
   press = function()
-    mez.api.spawn("foot")
+    -- foot doesnt resize on uneven columns
+    -- this means alacritty is just better (period)
+    mez.api.spawn("alacritty")
   end,
 })
 
@@ -37,24 +32,16 @@ mez.input.add_keymap("alt", "q", {
 
 mez.input.add_keymap("alt", "v", {
   press = function ()
-		local view = mez.view.get_focused_id()
-		mez.view.set_position(view, 100, 100)
-		mez.view.set_size(view, 100, 100)
-	end
-})
+    local id = mez.view.get_focused_id()
 
-mez.input.add_keymap("alt", "v", {
-	press = function ()
-		local view = mez.view.get_focused_id()
-		mez.view.set_position(view, 100, 100)
-		mez.view.set_size(view, 100, 100)
+    local details = mez.view.get_details(id);
+    print(details.title);
+    print(details.app_id);
   end
 })
 
 mez.input.add_keymap("alt", "Tab", {
   press = function ()
-		print("alt+tab")
-
     local focused = mez.view.get_focused_id()
     local all = mez.view.get_all_ids()
 
@@ -73,9 +60,22 @@ for i = 1, 12 do
   })
 end
 
+mez.input.add_keymap("alt", "t", {
+  press = function() tiler() end
+})
+
+local tiler = function ()
+  local all = mez.view.get_all_ids()
+
+  for i, id in ipairs(all) do
+    mez.view.set_position(id, (1920 / #all) * (i - 1), 0)
+    mez.view.set_size(id, 1920 / #all, 1080)
+  end
+end
+
 mez.hook.add("ViewMapPre", {
   callback = function(v)
-    mez.view.set_size(v, 1000, 1000)
+    tiler()
     mez.view.set_focused(v)
   end
 })

src/lua/api.zig

@@ -16,7 +16,6 @@ pub fn spawn(L: *zlua.Lua) i32 {
   }
 
   L.checkType(1, .string);
-  std.log.debug("GOT HERE", .{});
 
   const cmd = L.toString(1) catch {
     L.raiseErrorStr("Lua error check your config", .{});

src/lua/lua.zig

@@ -10,6 +10,7 @@ const Input = @import("input.zig");
 const Api = @import("api.zig");
 const Hook = @import("hook.zig");
 const View = @import("view.zig");
+const Output = @import("output.zig");
 
 const gpa = std.heap.c_allocator;
 
@@ -81,6 +82,11 @@ pub fn init(self: *Lua) !void {
       self.state.newLib(view_funcs);
       self.state.setField(-2, "view");
     }
+    {
+      const output_funcs = zlua.fnRegsFromType(Output);
+      self.state.newLib(output_funcs);
+      self.state.setField(-2, "output");
+    }
   }
 
   loadRuntimeDir(self) catch |err| {

src/lua/output.zig

@@ -0,0 +1,137 @@
+const std = @import("std");
+const zlua = @import("zlua");
+const wlr = @import("wlroots");
+
+const Output = @import("../output.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.outputs.iterator(.forward);
+  var index: usize = 1;
+
+  L.newTable();
+
+  while(it.next()) |scene_output| : (index += 1) {
+    if(scene_output.output.data == null) continue;
+
+    const output = @as(*Output, @ptrCast(@alignCast(scene_output.output.data.?)));
+
+    L.pushInteger(@intCast(index));
+    L.pushInteger(@intCast(output.id));
+    L.setTable(-3);
+  }
+
+  return 1;
+}
+
+pub fn get_focused_id(L: *zlua.Lua) i32 {
+  if(server.seat.focused_output) |output| {
+    L.pushInteger(@intCast(output.id));
+    return 1;
+  }
+
+  return 0;
+}
+
+pub fn get_rate(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if(nargs != 1) {
+    L.raiseErrorStr("Expected 1 argument, found", .{nargs});
+  }
+
+  L.checkType(1, .number);
+
+  const output_id: u64 = @as(u64, @intCast(L.toInteger(1) catch {
+    L.raiseErrorStr("Arg is not convertable to an int", .{});
+  }));
+
+  if(server.root.outputById(output_id)) |output| {
+    L.pushInteger(@intCast(output.wlr_output.refresh));
+    return 1;
+  }
+
+  return 0;
+}
+
+pub fn get_resolution(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if(nargs != 1) {
+    L.raiseErrorStr("Expected 1 argument, found", .{nargs});
+  }
+
+  L.checkType(1, .number);
+
+  const output_id: u64 = @as(u64, @intCast(L.toInteger(1) catch {
+    L.raiseErrorStr("Arg is not convertable to an int", .{});
+  }));
+
+  if(server.root.outputById(output_id)) |output| {
+    L.newTable();
+
+    _ = L.pushString("width");
+    L.pushInteger(@intCast(output.wlr_output.width));
+    L.setTable(-3);
+
+    _ = L.pushString("height");
+    L.pushInteger(@intCast(output.wlr_output.height));
+    L.setTable(-3);
+
+    return 1;
+  }
+
+  return 0;
+}
+
+pub fn get_details(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if(nargs != 1) {
+    L.raiseErrorStr("Expected 1 argument, found", .{nargs});
+  }
+
+  L.checkType(1, .number);
+
+  const output_id: u64 = @as(u64, @intCast(L.toInteger(1) catch {
+    L.raiseErrorStr("Arg is not convertable to an int", .{});
+  }));
+
+  if(server.root.outputById(output_id)) |output| {
+    L.newTable();
+
+    if(output.wlr_output.description) |detail| {
+      _ = L.pushString("description");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    if(output.wlr_output.model) |detail| {
+      _ = L.pushString("model");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    if(output.wlr_output.make) |detail| {
+      _ = L.pushString("make");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    _ = L.pushString("name");
+    _ = L.pushString(std.mem.span(output.wlr_output.name));
+    L.setTable(-3);
+
+    if(output.wlr_output.serial) |detail| {
+      _ = L.pushString("serial");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    return 1;
+  }
+
+  return 0;
+}

src/lua/view.zig

@@ -21,7 +21,7 @@ pub fn get_all_ids(L: *zlua.Lua) i32 {
 
     L.pushInteger(@intCast(index));
     L.pushInteger(@intCast(view.id));
-    L.setTable(1);
+    L.setTable(-3);
   }
 
   return 1;
@@ -39,8 +39,6 @@ pub fn get_focused_id(L: *zlua.Lua) i32 {
 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;
@@ -50,9 +48,9 @@ pub fn set_position(L: *zlua.Lua) i32 {
     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_id: u64 = @as(u64, @intCast(L.toInteger(1) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
+  const x: i32 = @as(i32, @intFromFloat(L.toNumber(2) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
+  const y: i32 = @as(i32, @intFromFloat(L.toNumber(3) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
 
   const view = server.root.viewById(view_id);
   if(view == null) {
@@ -77,9 +75,9 @@ pub fn set_size(L: *zlua.Lua) i32 {
     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_id: u64 = @as(u64, @intCast(L.toInteger(1) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
+  const width: i32 = @as(i32, @intFromFloat(L.toNumber(2) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
+  const height: i32 = @as(i32, @intFromFloat(L.toNumber(3) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
 
   const view = server.root.viewById(view_id);
   if(view == null) {
@@ -102,7 +100,7 @@ pub fn set_focused(L: *zlua.Lua) i32 {
 
   L.checkType(1, .number);
 
-  const view_id: u64 = @intCast(L.toInteger(1) catch unreachable);
+  const view_id: u64 = @as(u64, @intCast(L.toInteger(1) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
 
   const view = server.root.viewById(view_id);
   if(view == null) {
@@ -114,3 +112,36 @@ pub fn set_focused(L: *zlua.Lua) i32 {
 
   return 0;
 }
+
+pub fn get_details(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 = @as(u64, @intCast(L.toInteger(1) catch { L.raiseErrorStr("Arg is not convertable to an int", .{}); }));
+
+  if(server.root.viewById(view_id)) |view| {
+    L.newTable();
+
+    if(view.xdg_toplevel.title) |detail| {
+      _ = L.pushString("title");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    if(view.xdg_toplevel.app_id) |detail| {
+      _ = L.pushString("app_id");
+      _ = L.pushString(std.mem.span(detail));
+      L.setTable(-3);
+    }
+
+    return 1;
+  }
+
+  return 0;
+}

src/output.zig

@@ -11,6 +11,7 @@ const gpa = std.heap.c_allocator;
 const server = &@import("main.zig").server;
 
 focused: bool,
+id: u64,
 
 wlr_output: *wlr.Output,
 state: wlr.Output.State,
@@ -24,61 +25,73 @@ destroy: wl.Listener(*wlr.Output) = .init(handleDestroy),
 pub fn init(wlr_output: *wlr.Output) ?*Output {
   errdefer Utils.oomPanic();
 
-  const output = try gpa.create(Output);
+  const self = try gpa.create(Output);
 
-  output.* = .{
+  self.* = .{
     .focused = false,
+    .id = @intFromPtr(wlr_output),
     .wlr_output = wlr_output,
     .scene_output = try server.root.scene.createSceneOutput(wlr_output),
     .state = wlr.Output.State.init()
   };
 
-  wlr_output.events.frame.add(&output.frame);
-  wlr_output.events.request_state.add(&output.request_state);
-  wlr_output.events.destroy.add(&output.destroy);
+  wlr_output.events.frame.add(&self.frame);
+  wlr_output.events.request_state.add(&self.request_state);
+  wlr_output.events.destroy.add(&self.destroy);
 
-  errdefer deinit(output);
+  errdefer deinit(self);
 
   if(!wlr_output.initRender(server.allocator, server.renderer)) {
     std.log.err("Unable to start output {s}", .{wlr_output.name});
     return null;
   }
 
-  output.state.setEnabled(true);
+  self.state.setEnabled(true);
 
   if (wlr_output.preferredMode()) |mode| {
-    output.state.setMode(mode);
+    self.state.setMode(mode);
   }
 
-  if(!wlr_output.commitState(&output.state)) {
+  if(!wlr_output.commitState(&self.state)) {
     std.log.err("Unable to commit state to output {s}", .{wlr_output.name});
     return null;
   }
 
-  server.root.addOutput(output);
+  const layout_output = try server.root.output_layout.addAuto(self.wlr_output);
+  server.root.scene_output_layout.addOutput(layout_output, self.scene_output);
+  self.setFocused();
 
-  return output;
+  wlr_output.data = self;
+
+  return self;
 }
 
-pub fn deinit(output: *Output) void {
-  output.frame.link.remove();
-  output.request_state.link.remove();
-  output.destroy.remove();
+pub fn deinit(self: *Output) void {
+  self.frame.link.remove();
+  self.request_state.link.remove();
+  self.destroy.link.remove();
 
-  output.state.finish();
+  self.state.finish();
 
-  output.wlr_output.destroy();
+  self.wlr_output.destroy();
 
-  gpa.free(output);
+  gpa.destroy(self);
 }
 
+pub fn setFocused(self: *Output) void {
+  if(server.seat.focused_output) |prev_output| {
+    prev_output.focused = false;
+  }
+
+  server.seat.focused_output = self;
+  self.focused = true;
+}
 
 // --------- WlrOutput Event Handlers ---------
 fn handleRequestState(
   listener: *wl.Listener(*wlr.Output.event.RequestState),
   event: *wlr.Output.event.RequestState,
 ) void {
-  std.log.debug("Handling request state", .{});
   const output: *Output = @fieldParentPtr("request_state", listener);
 
   if (!output.wlr_output.commitState(event.state)) {

src/root.zig

@@ -67,11 +67,17 @@ pub fn viewById(self: *Root, id: u64) ?*View {
   return null;
 }
 
-pub fn addOutput(self: *Root, new_output: *Output) void {
-  errdefer Utils.oomPanic();
-  const layout_output = try self.output_layout.addAuto(new_output.wlr_output);
-  self.scene_output_layout.addOutput(layout_output, new_output.scene_output);
-  server.seat.focusOutput(new_output);
+pub fn outputById(self: *Root, id: u64) ?*Output {
+  var it = self.scene.outputs.iterator(.forward);
+
+  while(it.next()) |scene_output| {
+    if(scene_output.output.data == null) continue;
+
+    const output: *Output = @as(*Output, @ptrCast(@alignCast(scene_output.output.data.?)));
+    if(output.id == id) return output;
+  }
+
+  return null;
 }
 
 const ViewAtResult = struct {

src/seat.zig

@@ -66,7 +66,7 @@ pub fn deinit(self: *Seat) void {
 }
 
 pub fn focusOutput(self: *Seat, output: *Output) void {
-  if(self.focused_output) |prev_output| {
+  if(server.seat.focused_output) |prev_output| {
     prev_output.focused = false;
   }
 

src/types/hook.zig

@@ -38,7 +38,6 @@ pub fn callback(self: *const Hook, args: anytype) void {
     i = k;
   }
 
-  Lua.state.protectedCall(.{ .args = i }) catch {
-  };
+  Lua.state.protectedCall(.{ .args = i }) catch { };
   Lua.state.pop(-1);
 }

src/view.zig

@@ -157,6 +157,8 @@ fn handleUnmap(listener: *wl.Listener(void)) void {
   const view: *View = @fieldParentPtr("unmap", listener);
   std.log.debug("Unmapping view '{s}'", .{view.xdg_toplevel.title orelse "(unnamed)"});
 
+  server.events.exec("ViewUnmapPre", .{view.id});
+
   view.request_fullscreen.link.remove();
   view.request_move.link.remove();
   view.request_resize.link.remove();
@@ -167,6 +169,8 @@ fn handleUnmap(listener: *wl.Listener(void)) void {
   // view.ack_configure.link.remove();
 
   view.mapped = false;
+
+  server.events.exec("ViewUnmapPost", .{view.id});
 }
 
 fn handleDestroy(listener: *wl.Listener(void)) void {