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input/pointer: notify compositor when constraint region changes
This allows a compositor to know when warping back into the region is appropriate. Refs swaywm/sway#5268.
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51bbf31742
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2 changed files with 11 additions and 0 deletions
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@ -57,6 +57,11 @@ struct wlr_pointer_constraint_v1 {
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struct wl_list link; // wlr_pointer_constraints_v1::constraints
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struct wl_list link; // wlr_pointer_constraints_v1::constraints
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struct {
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struct {
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/**
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* Called when a pointer constraint's region is updated,
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* post-surface-commit.
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*/
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struct wl_signal set_region;
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struct wl_signal destroy;
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struct wl_signal destroy;
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} events;
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} events;
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@ -116,6 +116,7 @@ static void pointer_constraint_commit(
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}
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}
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constraint->current.committed |= constraint->pending.committed;
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constraint->current.committed |= constraint->pending.committed;
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bool updated_region = !!constraint->pending.committed;
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constraint->pending.committed = 0;
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constraint->pending.committed = 0;
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pixman_region32_clear(&constraint->region);
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pixman_region32_clear(&constraint->region);
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@ -126,6 +127,10 @@ static void pointer_constraint_commit(
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pixman_region32_copy(&constraint->region,
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pixman_region32_copy(&constraint->region,
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&constraint->surface->input_region);
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&constraint->surface->input_region);
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}
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}
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if (updated_region) {
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wlr_signal_emit_safe(&constraint->events.set_region, NULL);
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}
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}
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}
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static void handle_surface_commit(struct wl_listener *listener, void *data) {
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static void handle_surface_commit(struct wl_listener *listener, void *data) {
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@ -209,6 +214,7 @@ static void pointer_constraint_create(struct wl_client *client,
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constraint->type = type;
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constraint->type = type;
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constraint->pointer_constraints = pointer_constraints;
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constraint->pointer_constraints = pointer_constraints;
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wl_signal_init(&constraint->events.set_region);
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wl_signal_init(&constraint->events.destroy);
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wl_signal_init(&constraint->events.destroy);
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pixman_region32_init(&constraint->region);
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pixman_region32_init(&constraint->region);
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