86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package mujica
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import (
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"time"
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"github.com/egoist/mygo/ui"
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"mujicaui/theme"
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)
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// ChatEntry is one message of a person-to-person chat.
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type ChatEntry struct {
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// ID is unique and stable; Author is required.
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ID, Author string
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Image *ui.Bitmap
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Time time.Time
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Text string
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Edited bool
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// Own marks the user's own messages, shown on the right.
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Own bool
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}
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// ChatMessageOptions configure a ChatMessage.
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type ChatMessageOptions struct {
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// Continued hides repeated author details.
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Continued bool
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// Reply builds a quoted message above the text, as QuoteReply.
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Reply func()
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// Reactions builds the reaction row below the text.
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Reactions func()
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}
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// chatMergeGap is how close two messages must be to merge.
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const chatMergeGap = 5 * time.Minute
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// ChatContinues merges matching authors within five minutes.
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func ChatContinues(prev, cur ChatEntry) bool {
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d := cur.Time.Sub(prev.Time)
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return prev.Author == cur.Author && prev.Own == cur.Own && d >= 0 && d < chatMergeGap
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}
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// ChatMessage displays text, timestamps, edits and interaction slots.
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func ChatMessage(c *ui.Context, m ChatEntry, opts ChatMessageOptions) *ui.Element {
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if m.Author == "" {
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panic("mujica: ChatMessage needs an Author")
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}
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k := Tokens(c)
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u := Density(c).Unit()
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role := MessageAssistant
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if m.Own {
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role = MessageUser
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}
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bo := MessageBubbleOptions{}
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const avatar = 32
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if !opts.Continued {
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bo.Name = m.Author
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bo.Avatar = func() { Avatar(c, m.Author, AvatarOptions{Image: m.Image, Size: avatar}) }
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} else {
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bo.Avatar = func() { ui.Box(c).Width(avatar).Shrink(0) }
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}
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e := MessageBubble(c, role, bo, func() {
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if opts.Reply != nil {
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opts.Reply()
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}
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ui.Text(c, m.Text).Selectable().FocusRing(false).LineHeight(theme.LineHeight)
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ui.Row(c).Gap(u * 2).AlignItems(ui.Center).Children(func() {
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if !m.Time.IsZero() {
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ui.Text(c, m.Time.Format(msg(c, "chat_message.time"))).FontSize(FontSize(c, theme.CaptionSize)).
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TextColor(k.TextMuted).FontFeatures("tnum").SingleLine()
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}
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if m.Edited {
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ui.Text(c, msg(c, "chat_message.edited")).FontSize(FontSize(c, theme.CaptionSize)).TextColor(k.TextMuted).
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Italic().SingleLine()
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}
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})
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if opts.Reactions != nil {
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ui.Row(c).Gap(u).Wrap().Children(opts.Reactions)
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}
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})
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if opts.Continued {
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e.Label(m.Author)
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e.Margin(-u*2, 0, 0, 0)
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}
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return e
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}
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