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When growing or shrinking a view by snapping to an edge, a client may ignore the requested size and instead keep its original size or substitute a different (possibly constrained) size. In this case, the view may not actually contact the snapped edge, and a subsequent snap attempt will just keep re-trying (and failing) to contact the same ege. To mitigate this, remember the last-snapped view, snapping direction and offset of the snapping edge in snap.c; when re-attempting a snap for the same view in the same direction, ignore the edge that was last "hit", to allow snapping to progress beyond the problematic edge.
20 lines
501 B
C
20 lines
501 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef LABWC_SNAP_CONSTRAINTS_H
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#define LABWC_SNAP_CONSTRAINTS_H
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#include "common/border.h"
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#include "view.h"
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struct wlr_box;
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void snap_constraints_set(struct view *view,
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enum view_edge direction, struct wlr_box geom);
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void snap_constraints_invalidate(struct view *view);
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void snap_constraints_update(struct view *view);
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struct wlr_box snap_constraints_effective(struct view *view,
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enum view_edge direction);
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#endif /* LABWC_SNAP_CONSTRAINTS_H */
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