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fix: word/line wise dragging should keep the original word/line selected

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Also, fix bad behaviour when double/triple clicking the last word or line in a
file.

closes #264
This commit is contained in:
CJ van den Berg 2025-06-02 14:44:25 +02:00
parent e6e5a2f94e
commit 947e55e0c6
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
1 changed files with 26 additions and 11 deletions
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37
src/tui/editor.zig
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@ -276,6 +276,7 @@ pub const Editor = struct {
cursels: CurSel.List = .empty,
cursels_saved: CurSel.List = .empty,
selection_mode: SelectMode = .char,
selection_drag_initial: ?Selection = null,
clipboard: ?[]const u8 = null,
target_column: ?Cursor = null,
filter_: ?struct {
@ -2280,6 +2281,7 @@ pub const Editor = struct {
self.selection_mode = .word;
primary.cursor.move_abs(root, &self.view, @intCast(y), @intCast(x), self.metrics) catch return;
_ = try self.select_word_at_cursor(primary);
self.selection_drag_initial = primary.selection;
self.clamp_mouse();
}
@ -2290,6 +2292,7 @@ pub const Editor = struct {
self.selection_mode = .line;
primary.cursor.move_abs(root, &self.view, @intCast(y), @intCast(x), self.metrics) catch return;
try self.select_line_at_cursor(primary);
self.selection_drag_initial = primary.selection;
self.clamp_mouse();
}
@ -2300,17 +2303,29 @@ pub const Editor = struct {
const root = self.buf_root() catch return;
const sel = primary.enable_selection(root, self.metrics) catch return;
sel.end.move_abs(root, &self.view, @intCast(y_), @intCast(x_), self.metrics) catch return;
const initial = self.selection_drag_initial orelse sel.*;
switch (self.selection_mode) {
.char => {},
.word => if (sel.begin.right_of(sel.end))
with_selection_const(root, move_cursor_word_begin, primary, self.metrics) catch return
else
with_selection_const(root, move_cursor_word_end, primary, self.metrics) catch return,
.line => if (sel.begin.right_of(sel.end))
with_selection_const(root, move_cursor_begin, primary, self.metrics) catch return
else {
with_selection_const(root, move_cursor_end, primary, self.metrics) catch return;
with_selection_const(root, move_cursor_right, primary, self.metrics) catch return;
.word => {
if (sel.begin.right_of(sel.end)) {
sel.begin = initial.end;
with_selection_const(root, move_cursor_word_begin, primary, self.metrics) catch {};
} else {
sel.begin = initial.begin;
with_selection_const(root, move_cursor_word_end, primary, self.metrics) catch {};
}
},
.line => {
if (sel.begin.right_of(sel.end)) {
sel.begin = initial.end;
with_selection_const(root, move_cursor_begin, primary, self.metrics) catch {};
} else {
sel.begin = initial.begin;
blk: {
with_selection_const(root, move_cursor_end, primary, self.metrics) catch break :blk;
with_selection_const(root, move_cursor_right, primary, self.metrics) catch {};
}
}
},
}
primary.cursor = sel.end;
@ -4081,7 +4096,7 @@ pub const Editor = struct {
defer cursel.check_selection(root, self.metrics);
sel.normalize();
try move_cursor_word_begin(root, &sel.begin, self.metrics);
try move_cursor_word_end(root, &sel.end, self.metrics);
move_cursor_word_end(root, &sel.end, self.metrics) catch {};
cursel.cursor = sel.end;
return sel;
}
@ -4091,7 +4106,7 @@ pub const Editor = struct {
const sel = try cursel.enable_selection(root, self.metrics);
sel.normalize();
try move_cursor_begin(root, &sel.begin, self.metrics);
try move_cursor_end(root, &sel.end, self.metrics);
move_cursor_end(root, &sel.end, self.metrics) catch {};
cursel.cursor = sel.end;
}