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handle horizontal scrolling for mouse reports

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This commit is contained in:
Mitchell Hashimoto
2023-03-17 19:23:38 -07:00
parent 1b88f7e9ab
commit f02dc2f32f
1 changed files with 31 additions and 12 deletions
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37
src/Surface.zig
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@ -1075,13 +1075,17 @@ pub fn scrollCallback(self: *Surface, xoff: f64, yoff: f64) !void {
}
// log.info("SCROLL: {} {}", .{ xoff, yoff });
_ = xoff;
// Positive is up
const sign: isize = if (yoff > 0) -1 else 1;
const delta_unsigned = @max(@divFloor(self.grid_size.rows, 15), 1);
const delta: isize = sign * delta_unsigned;
log.info("scroll: delta={}", .{delta});
const y_sign: isize = if (yoff > 0) -1 else 1;
const y_delta_unsigned: usize = if (yoff == 0) 0 else @max(@divFloor(self.grid_size.rows, 15), 1);
const y_delta: isize = y_sign * @intCast(isize, y_delta_unsigned);
// Positive is right
const x_sign: isize = if (xoff < 0) -1 else 1;
const x_delta_unsigned: usize = if (xoff == 0) 0 else 1;
const x_delta: isize = x_sign * @intCast(isize, x_delta_unsigned);
log.info("scroll: delta_y={} delta_x={}", .{ y_delta, x_delta });
{
self.renderer_state.mutex.lock();
@ -1095,12 +1099,23 @@ pub fn scrollCallback(self: *Surface, xoff: f64, yoff: f64) !void {
self.io.terminal.modes.mouse_event == .none and
self.io.terminal.modes.mouse_alternate_scroll)
{
const up_down_seq = if (delta < 0) "\x1bOA" else "\x1bOB";
for (0..delta_unsigned) |_| {
if (y_delta_unsigned > 0) {
const seq = if (y_delta < 0) "\x1bOA" else "\x1bOB";
for (0..y_delta_unsigned) |_| {
_ = self.io_thread.mailbox.push(.{
.write_stable = up_down_seq,
.write_stable = seq,
}, .{ .forever = {} });
}
}
if (x_delta_unsigned > 0) {
const seq = if (x_delta < 0) "\x1bOC" else "\x1bOD";
for (0..x_delta_unsigned) |_| {
_ = self.io_thread.mailbox.push(.{
.write_stable = seq,
}, .{ .forever = {} });
}
}
// After sending all our messages we have to notify our IO thread
try self.io_thread.wakeup.notify();
@ -1112,7 +1127,7 @@ pub fn scrollCallback(self: *Surface, xoff: f64, yoff: f64) !void {
// the normal logic.
// Modify our viewport, this requires a lock since it affects rendering
try self.io.terminal.scrollViewport(.{ .delta = delta });
try self.io.terminal.scrollViewport(.{ .delta = y_delta });
// If we're scrolling up or down, then send a mouse event. This requires
// a lock since we read terminal state.
@ -1120,6 +1135,10 @@ pub fn scrollCallback(self: *Surface, xoff: f64, yoff: f64) !void {
const pos = try self.rt_surface.getCursorPos();
try self.mouseReport(if (yoff < 0) .five else .four, .press, self.mouse.mods, pos);
}
if (xoff != 0) {
const pos = try self.rt_surface.getCursorPos();
try self.mouseReport(if (xoff > 0) .six else .seven, .press, self.mouse.mods, pos);
}
}
try self.queueRender();