neurocyte/flow
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feat: remove existing cursor if clicked again in add cursor mode

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closes #146
This commit is contained in:
CJ van den Berg 2025-01-14 17:21:01 +01:00
parent 0791a82ca0
commit e09df735a5
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
1 changed files with 34 additions and 6 deletions
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40
src/tui/editor.zig
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@ -1527,6 +1527,29 @@ pub const Editor = struct {
self.cursels.clearRetainingCapacity();
}
fn cursor_count(self: *const Self) usize {
var count: usize = 0;
for (self.cursels.items[0..]) |*cursel| if (cursel.*) |_| {
count += 1;
};
return count;
}
fn cursor_at(self: *const Self, cursor: Cursor) ?usize {
for (self.cursels.items[0..], 0..) |*cursel, i| if (cursel.*) |*result|
if (cursor.eql(result.cursor))
return i;
return null;
}
fn remove_cursor_at(self: *const Self, cursor: Cursor) bool {
if (self.cursor_at(cursor)) |i| {
if (self.cursor_count() > 1) // refuse to remove the last cursor
self.cursels.items[i] = null;
return true; // but return true anyway to indicate a cursor was found
} else return false;
}
fn collapse_cursors(self: *Self) void {
const frame = tracy.initZone(@src(), .{ .name = "collapse cursors" });
defer frame.deinit();
@ -1964,15 +1987,20 @@ pub const Editor = struct {
}
pub fn primary_click(self: *Self, y: c_int, x: c_int) !void {
if (self.fast_scroll)
try self.push_cursor()
else
const root = self.buf_root() catch return;
if (self.fast_scroll) {
var at: Cursor = .{};
at.move_abs(root, &self.view, @intCast(y), @intCast(x), self.metrics) catch return;
if (self.remove_cursor_at(at))
return;
try self.push_cursor();
} else {
self.cancel_all_selections();
}
const primary = self.get_primary();
primary.selection = null;
self.selection_mode = .char;
try self.send_editor_jump_source();
const root = self.buf_root() catch return;
primary.cursor.move_abs(root, &self.view, @intCast(y), @intCast(x), self.metrics) catch return;
self.clamp_mouse();
try self.send_editor_jump_destination();
@ -2839,9 +2867,9 @@ pub const Editor = struct {
pub fn unindent(self: *Self, _: Context) Result {
const b = try self.buf_for_update();
errdefer self.restore_cursels();
const cursor_count = self.cursels.items.len;
const previous_len = self.cursels.items.len;
const root = try self.with_cursels_mut(b.root, unindent_cursel, b.allocator);
if (self.cursels.items.len != cursor_count)
if (self.cursels.items.len != previous_len)
self.restore_cursels();
try self.update_buf(root);
}