From 948b43389c1f0c328154f8a6dfc91b90db3ba151 Mon Sep 17 00:00:00 2001
From: Tim Culverhouse <tim@timculverhouse.com>
Date: Fri, 7 Mar 2025 16:14:17 -0600
Subject: [PATCH] lua: add channel:insert_text

---
 docs/comlink_channel.3.scd |  5 +++++
 src/lua.zig                | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/docs/comlink_channel.3.scd b/docs/comlink_channel.3.scd
index 0b01a7e..b6c1966 100644
--- a/docs/comlink_channel.3.scd
+++ b/docs/comlink_channel.3.scd
@@ -10,6 +10,8 @@ comlink_channel - a lua type representing an IRC channel
 
 *local name = channel:name*()
 
+*channel:insert_text*()
+
 *channel:mark_read*()
 
 *channel:send_msg*(_msg_)
@@ -18,6 +20,9 @@ comlink_channel - a lua type representing an IRC channel
 
 A *channel* represents an IRC channel.
 
+*channel:insert_text*
+	Insert text into the text input at the cursor position
+
 *channel:mark_read*
 	Mark this channel as read. This will update the unread indicator to the
 	position of the last read message.
diff --git a/src/lua.zig b/src/lua.zig
index bb5b571..066efae 100644
--- a/src/lua.zig
+++ b/src/lua.zig
@@ -459,6 +459,7 @@ const Channel = struct {
     fn initTable(lua: *Lua, channel: *irc.Channel) void {
         const fns = [_]ziglua.FnReg{
             .{ .name = "send_msg", .func = ziglua.wrap(Channel.sendMsg) },
+            .{ .name = "insert_text", .func = ziglua.wrap(Channel.insertText) },
             .{ .name = "name", .func = ziglua.wrap(Channel.name) },
             .{ .name = "mark_read", .func = ziglua.wrap(Channel.markRead) },
         };
@@ -496,6 +497,22 @@ const Channel = struct {
         return 0;
     }
 
+    fn insertText(lua: *Lua) i32 {
+        lua.argCheck(lua.isTable(1), 1, "expected a table"); // [table]
+        lua.argCheck(lua.isString(2), 2, "expected a string"); // [table,string]
+        const msg = lua.toString(2) catch unreachable;
+        lua.pop(1); // [table]
+        const lua_type = lua.getField(1, "_ptr"); // [table, lightuserdata]
+        lua.argCheck(lua_type == .light_userdata, 2, "expected lightuserdata");
+        const channel = lua.toUserdata(irc.Channel, 2) catch unreachable;
+        lua.pop(1); // []
+
+        channel.text_field.insertSliceAtCursor(msg) catch {
+            lua.raiseErrorStr("couldn't insert text", .{});
+        };
+        return 0;
+    }
+
     fn name(lua: *Lua) i32 {
         lua.argCheck(lua.isTable(1), 1, "expected a table"); // [table]
         const lua_type = lua.getField(1, "_ptr"); // [table, lightuserdata]
-- 
2.51.2