windows.go RawHistoryFolder

1package core
2
3import (
4	"time"
5
6	"github.com/bnema/neferwl/internal/ports"
7)
8
9// windowRecord is what core knows about one client surface besides its
10// place in the layout. Fields fill in as wayland reports them, in any order.
11type windowRecord struct {
12	// client holds the app ID and PID of a mapped window, for State.
13	client   ports.WindowMapped
14	mappedAt time.Time
15	// sized is set once the window's first committed size was seen.
16	sized bool
17	// region is the input region; nil accepts input everywhere.
18	region *ports.InputRegionChanged
19	// inhibitShortcuts asks to keep compositor binds while focused;
20	// idleInhibit keeps the session awake.
21	inhibitShortcuts bool
22	idleInhibit      bool
23}
24
25// windowRegistry owns the per-surface records. Dropping a surface removes
26// everything core keeps about it in one call.
27type windowRegistry struct {
28	records map[WindowID]*windowRecord
29}
30
31func newWindowRegistry() windowRegistry {
32	return windowRegistry{records: map[WindowID]*windowRecord{}}
33}
34
35// at returns the record of id, creating it.
36func (r *windowRegistry) at(id WindowID) *windowRecord {
37	rec := r.records[id]
38	if rec == nil {
39		rec = &windowRecord{}
40		r.records[id] = rec
41	}
42	return rec
43}
44
45// lookup returns the record of id, or the zero record when there is none.
46func (r *windowRegistry) lookup(id WindowID) windowRecord {
47	if rec := r.records[id]; rec != nil {
48		return *rec
49	}
50	return windowRecord{}
51}
52
53func (r *windowRegistry) mapped(v ports.WindowMapped, now time.Time) {
54	rec := r.at(v.ID)
55	rec.client, rec.mappedAt, rec.sized = v, now, false
56}
57
58// firstSize reports whether this is the first committed size of the window
59// since it mapped, and records that it was seen.
60func (r *windowRegistry) firstSize(id WindowID) bool {
61	rec := r.records[id]
62	if rec == nil || rec.sized || rec.client.ID == 0 {
63		return false
64	}
65	rec.sized = true
66	return true
67}
68
69// setAppID updates the app ID of a mapped window only.
70func (r *windowRegistry) setAppID(id WindowID, appID string) {
71	if rec := r.records[id]; rec != nil && rec.client.ID != 0 {
72		rec.client.AppID = appID
73	}
74}
75
76func (r *windowRegistry) setRegion(v ports.InputRegionChanged) { r.at(v.ID).region = &v }
77
78func (r *windowRegistry) setInhibitShortcuts(id WindowID, on bool) {
79	if on {
80		r.at(id).inhibitShortcuts = true
81	} else if rec := r.records[id]; rec != nil {
82		rec.inhibitShortcuts = false
83	}
84}
85
86func (r *windowRegistry) setIdleInhibit(id WindowID, on bool) {
87	if on {
88		r.at(id).idleInhibit = true
89	} else if rec := r.records[id]; rec != nil {
90		rec.idleInhibit = false
91	}
92}
93
94// drop forgets the surface.
95func (r *windowRegistry) drop(id WindowID) { delete(r.records, id) }
96
97// layerGone forgets the input region of a layer surface that is no longer
98// mapped; layers get no WindowUnmapped. The record goes once it is empty.
99func (r *windowRegistry) layerGone(id WindowID) {
100	rec := r.records[id]
101	if rec == nil {
102		return
103	}
104	rec.region = nil
105	if *rec == (windowRecord{}) {
106		delete(r.records, id)
107	}
108}
109
110// acceptsInput reports whether the surface-local point is in id's input
111// region.
112func (r *windowRegistry) acceptsInput(id WindowID, x, y float64) bool {
113	rec := r.records[id]
114	if rec == nil || rec.region == nil || rec.region.All {
115		return true
116	}
117	for _, box := range rec.region.Rects {
118		if x >= float64(box.X) && x < float64(box.X+box.W) && y >= float64(box.Y) && y < float64(box.Y+box.H) {
119			return true
120		}
121	}
122	return false
123}