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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,238 @@ | ||
| package messages | ||
|
|
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| import ( | ||
| "context" | ||
| "slices" | ||
| "time" | ||
|
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| "github.com/diamondburned/arikawa/v3/discord" | ||
| "github.com/diamondburned/arikawa/v3/gateway" | ||
| "github.com/diamondburned/chatkit/components/author" | ||
| "github.com/diamondburned/gotk4/pkg/glib/v2" | ||
| "github.com/diamondburned/gotk4/pkg/gtk/v4" | ||
| "github.com/diamondburned/gotk4/pkg/pango" | ||
| "github.com/diamondburned/gotkit/app/locale" | ||
| "github.com/diamondburned/gotkit/gtkutil/cssutil" | ||
| "github.com/diamondburned/gtkcord4/internal/gtkcord" | ||
| ) | ||
|
|
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| const typerTimeout = 10 * time.Second | ||
|
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| // TypingIndicator is a struct that represents a typing indicator box. | ||
| type TypingIndicator struct { | ||
| *gtk.Revealer | ||
| child struct { | ||
| *gtk.Box | ||
| Dots gtk.Widgetter | ||
| Label *gtk.Label | ||
| } | ||
|
|
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| typers []typingTyper | ||
| state *gtkcord.State | ||
| chID discord.ChannelID | ||
| guildID discord.GuildID | ||
| } | ||
|
|
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| type typingTyper struct { | ||
| UserMarkup string | ||
| UserID discord.UserID | ||
| When discord.UnixTimestamp | ||
| } | ||
|
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| var typingIndicatorCSS = cssutil.Applier("messages-typing-indicator", ` | ||
| .messages-typing-box { | ||
| padding: 1px 15px; | ||
| font-size: 0.85em; | ||
| } | ||
| .messages-typing-box .messages-breathing-dots { | ||
| margin-right: 11px; | ||
| } | ||
| `) | ||
|
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| // NewTypingIndicator creates a new TypingIndicator. | ||
| func NewTypingIndicator(ctx context.Context, chID discord.ChannelID) *TypingIndicator { | ||
| state := gtkcord.FromContext(ctx) | ||
|
|
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| t := &TypingIndicator{ | ||
| Revealer: gtk.NewRevealer(), | ||
| typers: make([]typingTyper, 0, 3), | ||
| state: state, | ||
| chID: chID, | ||
| } | ||
|
|
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| ch, _ := state.Cabinet.Channel(chID) | ||
| if ch != nil { | ||
| t.guildID = ch.GuildID | ||
| } | ||
|
|
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| t.child.Dots = newBreathingDots() | ||
|
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| t.child.Label = gtk.NewLabel("") | ||
| t.child.Label.AddCSSClass("messages-typing-label") | ||
| t.child.Label.SetHExpand(true) | ||
| t.child.Label.SetXAlign(0) | ||
| t.child.Label.SetWrap(false) | ||
| t.child.Label.SetEllipsize(pango.EllipsizeEnd) | ||
| t.child.Label.SetSingleLineMode(true) | ||
|
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| t.child.Box = gtk.NewBox(gtk.OrientationHorizontal, 0) | ||
| t.child.Box.AddCSSClass("messages-typing-box") | ||
| t.child.Box.Append(t.child.Dots) | ||
| t.child.Box.Append(t.child.Label) | ||
|
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| t.SetTransitionType(gtk.RevealerTransitionTypeSlideUp) | ||
| t.SetOverflow(gtk.OverflowHidden) | ||
| t.SetChild(t.child.Box) | ||
| typingIndicatorCSS(t) | ||
|
|
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| state.AddHandlerForWidget(t, | ||
| func(ev *gateway.TypingStartEvent) { | ||
| if ev.ChannelID != chID { | ||
| return | ||
| } | ||
| t.AddTyper(ev.UserID, ev.Timestamp) | ||
| }, | ||
| func(ev *gateway.MessageCreateEvent) { | ||
| if ev.ChannelID != chID { | ||
| return | ||
| } | ||
| t.RemoveTyper(ev.Author.ID) | ||
| }, | ||
| ) | ||
| t.updateAndScheduleNext() | ||
|
|
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| return t | ||
| } | ||
|
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| // AddTyper adds a typer to the typing indicator. | ||
| func (t *TypingIndicator) AddTyper(userID discord.UserID, when discord.UnixTimestamp) { | ||
| t.AddTyperMember(userID, when, nil) | ||
| } | ||
|
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| // AddTyperMember adds a typer to the typing indicator with a member object. | ||
| func (t *TypingIndicator) AddTyperMember(userID discord.UserID, when discord.UnixTimestamp, member *discord.Member) { | ||
| defer t.updateAndScheduleNext() | ||
|
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| ix := slices.IndexFunc(t.typers, func(t typingTyper) bool { return t.UserID == userID }) | ||
| if ix != -1 { | ||
| t.typers[ix].When = when | ||
| return | ||
| } | ||
|
|
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| mods := []author.MarkupMod{author.WithMinimal()} | ||
|
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| var markup string | ||
| if member != nil { | ||
| markup = t.state.MemberMarkup(t.guildID, &discord.GuildUser{ | ||
| User: member.User, | ||
| Member: member, | ||
| }, mods...) | ||
| } else { | ||
| markup = t.state.UserIDMarkup(t.chID, userID, mods...) | ||
| } | ||
|
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| t.typers = append(t.typers, typingTyper{ | ||
| UserMarkup: markup, | ||
| UserID: userID, | ||
| When: when, | ||
| }) | ||
| } | ||
|
|
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| // RemoveTyper removes a typer from the typing indicator. | ||
| func (t *TypingIndicator) RemoveTyper(userID discord.UserID) { | ||
| t.typers = slices.DeleteFunc(t.typers, func(t typingTyper) bool { return t.UserID == userID }) | ||
| t.updateAndScheduleNext() | ||
| } | ||
|
|
||
| // updateAndScheduleNext updates the typing indicator and schedules the next | ||
| // cleanup using TimeoutAdd. | ||
| func (t *TypingIndicator) updateAndScheduleNext() { | ||
| now := time.Now() | ||
| earliest := discord.UnixTimestamp(now.Add(-typerTimeout).Unix()) | ||
|
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| nowUnix := discord.UnixTimestamp(now.Unix()) | ||
| next := nowUnix | ||
|
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| typers := t.typers[:0] | ||
| for _, typer := range t.typers { | ||
| if typer.When > earliest { | ||
| typers = append(typers, typer) | ||
| next = min(next, typer.When) | ||
| } | ||
| } | ||
| for i := len(typers); i < len(t.typers); i++ { | ||
| // Prevent memory leaks. | ||
| t.typers[i] = typingTyper{} | ||
| } | ||
| t.typers = typers | ||
|
|
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| if len(t.typers) == 0 { | ||
| t.SetRevealChild(false) | ||
| return | ||
| } | ||
|
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| slices.SortFunc(t.typers, func(a, b typingTyper) int { | ||
| return int(a.When - b.When) | ||
| }) | ||
|
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| t.SetRevealChild(true) | ||
| t.child.Label.SetMarkup(renderTypingMarkup(t.typers)) | ||
|
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| // Schedule the next cleanup. | ||
| // Prevent rounding errors by adding a small buffer. | ||
| cleanUpInSeconds := uint(next-nowUnix) + 1 | ||
| glib.TimeoutSecondsAdd(cleanUpInSeconds, func() { | ||
| t.updateAndScheduleNext() | ||
| }) | ||
| } | ||
|
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| func renderTypingMarkup(typers []typingTyper) string { | ||
| switch len(typers) { | ||
| case 0: | ||
| return "" | ||
| case 1: | ||
| return locale.Sprintf( | ||
| "%s is typing...", | ||
| typers[0].UserMarkup, | ||
| ) | ||
| case 2: | ||
| return locale.Sprintf( | ||
| "%s and %s are typing...", | ||
| typers[0].UserMarkup, typers[1].UserMarkup, | ||
| ) | ||
| case 3: | ||
| return locale.Sprintf( | ||
| "%s, %s and %s are typing...", | ||
| typers[0].UserMarkup, typers[1].UserMarkup, typers[2].UserMarkup, | ||
| ) | ||
| default: | ||
| return locale.Get( | ||
| "Several people are typing...", | ||
| ) | ||
| } | ||
| } | ||
|
|
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| var breathingDotsCSS = cssutil.Applier("messages-breathing-dots", ` | ||
| @keyframes messages-breathing { | ||
| 0% { opacity: 0.66; } | ||
| 100% { opacity: 0.12; } | ||
| } | ||
| .messages-breathing-dots label { | ||
| animation: messages-breathing 800ms infinite alternate; | ||
| } | ||
| .messages-breathing-dots label:nth-child(1) { animation-delay: 000ms; } | ||
| .messages-breathing-dots label:nth-child(2) { animation-delay: 150ms; } | ||
| .messages-breathing-dots label:nth-child(3) { animation-delay: 300ms; } | ||
| `) | ||
|
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| func newBreathingDots() gtk.Widgetter { | ||
| const ch = "●" | ||
|
|
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| box := gtk.NewBox(gtk.OrientationHorizontal, 0) | ||
| box.Append(gtk.NewLabel(ch)) | ||
| box.Append(gtk.NewLabel(ch)) | ||
| box.Append(gtk.NewLabel(ch)) | ||
| breathingDotsCSS(box) | ||
|
|
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| return box | ||
| } |
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