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add and use flag for selecting empty lines in the selectLine function

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This commit is contained in:
otomist
2025-01-14 12:04:43 -05:00
parent d1fd22ae80
commit 95debc59d1
2 changed files with 19 additions and 12 deletions
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25
src/Surface.zig
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@ -3563,22 +3563,23 @@ fn dragLeftClickTriple(
const screen = &self.io.terminal.screen;
const click_pin = self.mouse.left_click_pin.?.*;
// Get the word under our current point. If there isn't a word, do nothing.
const word = screen.selectLine(.{ .pin = drag_pin }) orelse return;
// Get the line selection under our current drag point. If there isn't a line, do nothing.
const line = screen.selectLine(.{ .pin = drag_pin }) orelse return;
// Get our selection to grow it. If we don't have a selection, start it now.
// We may not have a selection if we started our dbl-click in an area
// that had no data, then we dragged our mouse into an area with data.
var sel = screen.selectLine(.{ .pin = click_pin }) orelse {
try self.setSelection(word);
return;
};
// get the selection under our click point.
var sel_ = screen.selectLine(.{ .pin = click_pin });
// Grow our selection
// We may not have a selection if we started our triple-click in an area
// that had no data, in this case recall selectLine with allow_empty_lines.
if (sel_ == null) {
sel_ = screen.selectLine(.{ .pin = click_pin, .allow_empty_lines = true });
}
var sel = sel_ orelse return;
if (drag_pin.before(click_pin)) {
sel.startPtr().* = word.start();
sel.startPtr().* = line.start();
} else {
sel.endPtr().* = word.end();
sel.endPtr().* = line.end();
}
try self.setSelection(sel);
}

6
src/terminal/Screen.zig
View File

@ -2215,6 +2215,7 @@ pub const SelectLine = struct {
/// state changing a boundary. State changing is ANY state
/// change.
semantic_prompt_boundary: bool = true,
allow_empty_lines: bool = false,
};
/// Select the line under the given point. This will select across soft-wrapped
@ -2292,6 +2293,11 @@ pub fn selectLine(self: *const Screen, opts: SelectLine) ?Selection {
return null;
};
// If we allow empty lines, we don't need to do any further checks.
if (opts.allow_empty_lines) {
return Selection.init(start_pin, end_pin, false);
}
// Go forward from the start to find the first non-whitespace character.
const start: Pin = start: {
const whitespace = opts.whitespace orelse break :start start_pin;