Files
MujicaUI/messaging/chat_message.go
T

89 lines
2.6 KiB
Go

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