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overlay: add snap-to-edge overlay (PR #1652)

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...and unify region overlay and snap-to-edge overlay into overlay.c.

Snap-to-edge overlay is delayed for 500ms to prevent flickering when
the view is dragged from an output to another (demo in discussion labwc#1613).

This also fixes a bug that region overlay is not shown when a modifier
key is re-pressed.
This commit is contained in:
Hiroaki Yamamoto 2024-04-05 11:35:31 +09:00 • committed by GitHub
parent 67669dcf1e
commit 5cc0757390
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16 changed files with 361 additions and 152 deletions
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36
include/overlay.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef LABWC_OVERLAY_H
#define LABWC_OVERLAY_H
#include <wlr/util/box.h>
#include "common/graphic-helpers.h"
#include "regions.h"
#include "view.h"
struct overlay {
struct wlr_scene_tree *tree;
union {
struct wlr_scene_rect *rect;
struct multi_rect *pixman_rect;
};
/* Represents currently shown or delayed overlay */
struct {
/* Region overlay */
struct region *region;
/* Snap-to-edge overlay */
enum view_edge edge;
struct output *output;
} active;
/* For delayed snap-to-edge overlay */
struct wl_event_source *timer;
};
/* Calls overlay_hide() internally if there's no overlay to show */
void overlay_update(struct seat *seat);
/* This function must be called when server->grabbed_view is destroyed */
void overlay_hide(struct seat *seat);
#endif