diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/config.zig | 2 | ||||
| -rw-r--r-- | src/modal.zig | 21 | ||||
| -rw-r--r-- | src/normal.zig | 10 |
3 files changed, 29 insertions, 4 deletions
diff --git a/src/config.zig b/src/config.zig index ecaa3357..daa40028 100644 --- a/src/config.zig +++ b/src/config.zig @@ -440,6 +440,7 @@ pub const errors_buffer = "+Errors"; // Modal bindings below are checked against Helix by hxdiff and hxparity. pub const goto_prefix = 'g'; pub const view_prefix = 'z'; +pub const view_prefix_sticky = 'Z'; pub const match_prefix = 'm'; pub const replace_prefix = 'r'; pub const next_prefix = ']'; @@ -473,6 +474,7 @@ pub const page_up: []const Chord = &.{ .{ .cp = 'b', .ctrl = true }, .{ .cp = Ke pub const view_top: []const Chord = &.{.{ .cp = 't' }}; pub const view_center: []const Chord = &.{ .{ .cp = 'z' }, .{ .cp = 'c' } }; pub const view_bottom: []const Chord = &.{.{ .cp = 'b' }}; +pub const view_middle: []const Chord = &.{.{ .cp = 'm' }}; pub const view_scroll_down: []const Chord = &.{ .{ .cp = 'j' }, .{ .cp = Key.down } }; pub const view_scroll_up: []const Chord = &.{ .{ .cp = 'k' }, .{ .cp = Key.up } }; diff --git a/src/modal.zig b/src/modal.zig index 0171da93..16196b4f 100644 --- a/src/modal.zig +++ b/src/modal.zig @@ -16,6 +16,7 @@ pub const Normal = struct { prefix_next, prefix_prev, prefix_register, + prefix_view_sticky, goto_file_start, goto_last_line, @@ -38,6 +39,7 @@ pub const Normal = struct { view_top, view_center, view_bottom, + view_middle, view_scroll_down, view_scroll_up, @@ -196,9 +198,12 @@ pub const Normal = struct { held_char: u21 = 0, /// `"<reg>`: the register the next command names, 0 for none register: u21 = 0, + /// `Z`: the view keys stay armed until Esc (helix's sticky view) + sticky: bool = false, + /// Drop what is pending; sticky view mode stays armed through it. pub fn clear(state: *State) void { - state.* = .{}; + state.* = if (state.sticky) .{ .sticky = true, .prefix = .view } else .{}; } }; @@ -254,7 +259,7 @@ pub const Normal = struct { view_bottom, last_modification, }; - pub const View = enum { top, center, bottom, scroll_down, scroll_up }; + pub const View = enum { top, center, bottom, middle, scroll_down, scroll_up }; pub const Find = enum { forward, backward, till_forward, till_backward }; pub const Line = enum { start, end, first_nonws }; pub const Page = enum { half_down, half_up, down, up }; @@ -407,7 +412,10 @@ pub const Normal = struct { pub fn parse(state: *State, key: Input) Result { if (key.has(.escape)) { - state.clear(); + // Esc out of sticky view mode leaves that mode and nothing else + const sticky = state.sticky; + state.* = .{}; + if (sticky) return .ignored; return resultAction(.escape); } @@ -448,8 +456,9 @@ pub const Normal = struct { return .ignored; }, .view => { - state.prefix = .none; + if (!state.sticky) state.prefix = .none; if (key.has(.view_top)) return resultAction(.{ .view = .top }); + if (key.has(.view_middle)) return resultAction(.{ .view = .middle }); if (key.has(.view_center)) return resultAction(.{ .view = .center }); if (key.has(.view_bottom)) return resultAction(.{ .view = .bottom }); if (key.has(.view_scroll_down)) return resultAction(.{ .view = .scroll_down }); @@ -543,6 +552,10 @@ pub const Normal = struct { // Prefix setters retain the count for their continuation. if (key.has(.prefix_goto)) return armPrefix(state, .goto, if (counted.explicit) count else 0); if (key.has(.prefix_view)) return armPrefix(state, .view, if (counted.explicit) count else 0); + if (key.has(.prefix_view_sticky)) { + state.sticky = true; + return armPrefix(state, .view, 0); + } if (key.has(.prefix_find_fwd)) return armPrefix(state, .find_fwd, if (counted.explicit) count else 0); if (key.has(.prefix_find_back)) return armPrefix(state, .find_back, if (counted.explicit) count else 0); if (key.has(.prefix_till_fwd)) return armPrefix(state, .till_fwd, if (counted.explicit) count else 0); diff --git a/src/normal.zig b/src/normal.zig index f9d7cf25..f7ba3810 100644 --- a/src/normal.zig +++ b/src/normal.zig @@ -29,6 +29,7 @@ fn roleBindingName(comptime role: modal.Normal.Role) []const u8 { return switch (role) { .prefix_goto => "goto_prefix", .prefix_view => "view_prefix", + .prefix_view_sticky => "view_prefix_sticky", .prefix_match => "match_prefix", .prefix_find_fwd => "find_char_fwd", .prefix_find_back => "find_char_back", @@ -478,6 +479,15 @@ fn executeNormalAction(p: *Pardes, t: *Text, semantic: modal.Normal.Action) void pane.scrollBy(t.cur_row - (pane.scroll() + @as(i32, pane.rows) - 1)); pane.ensureCursorVisible(); }, + .middle => { + // helix align_view_middle: the cursor's column to the middle + // of an unwrapped view + if (pane.body_wrapped) return; + const line = text[modal.lineStartOffset(text, modal.lineAtOffset(text, cur))..modal.lineEndOffset(text, modal.lineAtOffset(text, cur))]; + const w: usize = @intCast(@max(1, @as(i32, pane.cols) - @as(i32, panes.File.gutterWidth(pane)))); + const col = panes.File.rawDisplayCol(line, @intCast(@max(0, t.cur_col))); + pane.hscroll = @intCast(panes.File.rawAtDisplay(line, col -| w / 2)); + }, .scroll_down => return t.scrollViewMove(text, range, 1), .scroll_up => return t.scrollViewMove(text, range, -1), }, |