From 634a18cb5685a3c3fcfc08301306e628d33c3256 Mon Sep 17 00:00:00 2001
From: CJ van den Berg <cj@vdbonline.com>
Date: Mon, 13 Oct 2025 19:50:04 +0200
Subject: [PATCH] feat: add clipboard history palette

---
 src/tui/mainview.zig                       |  5 ++
 src/tui/mode/overlay/clipboard_palette.zig | 73 ++++++++++++++++++++++
 src/tui/tui.zig                            | 10 +++
 3 files changed, 88 insertions(+)
 create mode 100644 src/tui/mode/overlay/clipboard_palette.zig

diff --git a/src/tui/mainview.zig b/src/tui/mainview.zig
index 9fe0104..3b3dcb8 100644
--- a/src/tui/mainview.zig
+++ b/src/tui/mainview.zig
@@ -1018,6 +1018,11 @@ const cmds = struct {
     }
     pub const system_paste_meta: Meta = .{ .description = "Paste from system clipboard" };
 
+    pub fn paste_history(_: *Self, _: Ctx) Result {
+        return try tui.open_overlay(@import("mode/overlay/clipboard_palette.zig").Type);
+    }
+    pub const paste_history_meta: Meta = .{ .description = "Paste from clipboard history" };
+
     pub fn find_in_files_query(self: *Self, ctx: Ctx) Result {
         var query: []const u8 = undefined;
         if (!try ctx.args.match(.{tp.extract(&query)})) return error.InvalidFindInFilesQueryArgument;
diff --git a/src/tui/mode/overlay/clipboard_palette.zig b/src/tui/mode/overlay/clipboard_palette.zig
new file mode 100644
index 0000000..1830065
--- /dev/null
+++ b/src/tui/mode/overlay/clipboard_palette.zig
@@ -0,0 +1,73 @@
+const std = @import("std");
+const cbor = @import("cbor");
+const tp = @import("thespian");
+const root = @import("soft_root").root;
+const command = @import("command");
+
+const tui = @import("../../tui.zig");
+pub const Type = @import("palette.zig").Create(@This());
+const module_name = @typeName(@This());
+
+pub const label = "Clipboard history";
+pub const name = " clipboard";
+pub const description = "clipboard";
+pub const icon = "  ";
+
+pub const Entry = struct {
+    label: []const u8,
+    idx: usize,
+};
+
+pub fn load_entries(palette: *Type) !usize {
+    const history = tui.clipboard_get_history() orelse &.{};
+
+    if (history.len > 0) {
+        var idx = history.len - 1;
+        while (true) : (idx -= 1) {
+            (try palette.entries.addOne(palette.allocator)).* = .{
+                .label = history[idx],
+                .idx = idx,
+            };
+            if (idx == 0) break;
+        }
+    }
+    return if (palette.entries.items.len == 0) label.len + 3 else 4;
+}
+
+pub fn clear_entries(palette: *Type) void {
+    palette.entries.clearRetainingCapacity();
+}
+
+pub fn add_menu_entry(palette: *Type, entry: *Entry, matches: ?[]const usize) !void {
+    var value: std.Io.Writer.Allocating = .init(palette.allocator);
+    defer value.deinit();
+    const writer = &value.writer;
+    try cbor.writeValue(writer, entry.label);
+    try cbor.writeValue(writer, entry.idx);
+    try cbor.writeValue(writer, matches orelse &[_]usize{});
+    try palette.menu.add_item_with_handler(value.written(), select);
+    palette.items += 1;
+}
+
+fn select(menu: **Type.MenuType, button: *Type.ButtonType, _: Type.Pos) void {
+    var unused: []const u8 = undefined;
+    var idx: usize = undefined;
+    var iter = button.opts.label;
+    if (!(cbor.matchString(&iter, &unused) catch false)) return;
+    if (!(cbor.matchValue(&iter, cbor.extract(&idx)) catch false)) return;
+    tp.self_pid().send(.{ "cmd", "exit_overlay_mode" }) catch |e| menu.*.opts.ctx.logger.err("navigate", e);
+
+    const history = tui.clipboard_get_history() orelse return;
+    if (history.len <= idx) return;
+    tp.self_pid().send(.{ "cmd", "paste", .{history[idx]} }) catch {};
+}
+
+pub fn delete_item(menu: *Type.MenuType, button: *Type.ButtonType) bool {
+    var unused: []const u8 = undefined;
+    var idx: usize = undefined;
+    var iter = button.opts.label;
+    if (!(cbor.matchString(&iter, &unused) catch false)) return false;
+    if (!(cbor.matchValue(&iter, cbor.extract(&idx)) catch false)) return false;
+    command.executeName("clipboard_delete", command.fmt(.{idx})) catch |e| menu.*.opts.ctx.logger.err(module_name, e);
+    return true; //refresh list
+}
diff --git a/src/tui/tui.zig b/src/tui/tui.zig
index 54f8aee..ffe3ed7 100644
--- a/src/tui/tui.zig
+++ b/src/tui/tui.zig
@@ -1275,6 +1275,16 @@ const cmds = struct {
         @import("mode/helix.zig").deinit();
     }
     pub const exit_helix_mode_meta: Meta = .{};
+
+    pub fn clipboard_delete(self: *Self, ctx: Ctx) Result {
+        var idx: usize = 0;
+        if (!try ctx.args.match(.{tp.extract(&idx)}))
+            return error.InvalidClipboardDeleteArgument;
+        const clipboard = if (self.clipboard) |*clipboard| clipboard else return;
+        const removed = clipboard.orderedRemove(idx);
+        self.allocator.free(removed);
+    }
+    pub const clipboard_delete_meta: Meta = .{};
 };
 
 pub const MiniMode = struct {