Nulo/river
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pointer-constraints: fix coordinates

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Currently the implementation treats the x/y coordinates of
View.State.box as layout coordinates instead of output-relative. This
causes issues when using an output not at 0,0.
This commit is contained in:
Isaac Freund 2021-10-11 15:01:57 +02:00
parent 3b24e7fcd5
commit 50814e0ffe
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GPG key ID: 86DED400DDFD7A11
2 changed files with 30 additions and 13 deletions
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2
deps/zig-pixman vendored

@ -1 +1 @@
Subproject commit 135f22345671e0ae2d1bc4b27cfdee9e97b97dfc
Subproject commit 88520f264cd65153fe77ad2e5a17d22eee5e1af4

41
river/PointerConstraint.zig
View file

@ -24,6 +24,7 @@ const wl = @import("wayland").server.wl;
const pixman = @import("pixman");
const log = @import("log.zig");
const server = &@import("main.zig").server;
const util = @import("util.zig");
const Cursor = @import("Cursor.zig");
@ -62,11 +63,16 @@ pub fn setAsActive(self: *Self) void {
self.cursor.constraint = self.constraint;
// TODO: This is the same hack sway uses to deal with the fact that this
// function may be called in response to a surface commit but before the
// the wlroots pointer constraints implementation's commit handler has been called.
// This logic is duplicated from that commit handler.
if (self.constraint.current.region.notEmpty()) {
_ = self.constraint.region.intersect(&self.constraint.surface.input_region, &self.constraint.current.region);
} else {
_ = self.constraint.region.copy(&self.constraint.surface.input_region);
}
self.constrainToRegion();
self.constraint.sendActivated();
@ -75,19 +81,23 @@ pub fn setAsActive(self: *Self) void {
fn constrainToRegion(self: *Self) void {
if (self.cursor.constraint != self.constraint) return;
if (View.fromWlrSurface(self.constraint.surface)) |view| {
const cx = @floatToInt(c_int, self.cursor.wlr_cursor.x) - @intCast(c_int, view.current.box.x);
const cy = @floatToInt(c_int, self.cursor.wlr_cursor.y) - @intCast(c_int, view.current.box.y);
const output = view.output;
const output_box = server.root.output_layout.getBox(output.wlr_output).?;
var box: pixman.Box32 = undefined;
const surface_lx = @intToFloat(f64, output_box.x + view.current.box.x - view.surface_box.x);
const surface_ly = @intToFloat(f64, output_box.y + view.current.box.y - view.surface_box.y);
if (!self.constraint.region.containsPoint(cx, cy, &box)) {
const sx = @floatToInt(c_int, self.cursor.wlr_cursor.x - surface_lx);
const sy = @floatToInt(c_int, self.cursor.wlr_cursor.y - surface_ly);
// If the cursor is not already inside the constraint region, warp
// it to an arbitrary point inside the constraint region.
if (!self.constraint.region.containsPoint(sx, sy, null)) {
const rects = self.constraint.region.rectangles();
if (rects.len > 0) {
const new_cx = @intToFloat(f64, view.current.box.x + rects[0].x1 + @divFloor(rects[0].x2, 2));
const new_cy = @intToFloat(f64, view.current.box.y + rects[0].y1 + @divFloor(rects[0].y2, 2));
self.cursor.wlr_cursor.warpClosest(null, new_cx, new_cy);
const new_lx = surface_lx + @intToFloat(f64, rects[0].x1 + rects[0].x2) / 2;
const new_ly = surface_ly + @intToFloat(f64, rects[0].y1 + rects[0].y2) / 2;
self.cursor.wlr_cursor.warpClosest(null, new_lx, new_ly);
}
}
}
@ -117,10 +127,17 @@ pub fn warpToHint(cursor: *Cursor) void {
if (cursor.constraint) |constraint| {
if (constraint.current.committed.cursor_hint) {
if (View.fromWlrSurface(constraint.surface)) |view| {
const cx = constraint.current.cursor_hint.x + @intToFloat(f64, view.current.box.x);
const cy = constraint.current.cursor_hint.y + @intToFloat(f64, view.current.box.y);
const output = view.output;
const output_box = server.root.output_layout.getBox(output.wlr_output).?;
_ = cursor.wlr_cursor.warp(null, cx, cy);
const surface_lx = @intToFloat(f64, output_box.x + view.current.box.x - view.surface_box.x);
const surface_ly = @intToFloat(f64, output_box.y + view.current.box.y - view.surface_box.y);
_ = cursor.wlr_cursor.warp(
null,
surface_lx + constraint.current.cursor_hint.x,
surface_ly + constraint.current.cursor_hint.y,
);
}
}
}