mirror of
https://github.com/diamondburned/cchat-gtk.git
synced 2024-12-23 04:36:49 +00:00
141 lines
3.4 KiB
Go
141 lines
3.4 KiB
Go
package session
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import (
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"github.com/diamondburned/cchat-gtk/internal/ui/primitives"
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"github.com/diamondburned/cchat-gtk/internal/ui/primitives/drag"
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"github.com/gotk3/gotk3/gtk"
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)
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type ServiceController interface {
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SessionSelected(*Row)
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AuthenticateSession()
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}
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type List struct {
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*gtk.ListBox
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// This map isn't ordered, as we rely on the order that the widget was added
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// into the ListBox.
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sessions map[string]*Row
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svcctrl ServiceController
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}
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var listCSS = primitives.PrepareClassCSS("session-list", `
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.session-list {
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border-radius: 0 0 14px 14px;
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background-color: mix(@theme_bg_color, @theme_fg_color, 0.1);
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box-shadow:
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inset 0 10px 2px -10px alpha(#121212, 0.6),
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inset 0 -10px 2px -10px alpha(#121212, 0.6);
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}
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`)
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func NewList(svcctrl ServiceController) *List {
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list, _ := gtk.ListBoxNew()
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list.Add(NewAddButton()) // add button to LAST; keep it LAST.
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list.Show()
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listCSS(list)
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// We can't do browse for the selection mode, as we need UnselectAll to
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// work.
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list.SetSelectionMode(gtk.SELECTION_SINGLE)
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sl := &List{
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ListBox: list,
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sessions: map[string]*Row{},
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svcctrl: svcctrl,
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}
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list.Connect("row-activated", func(l *gtk.ListBox, r *gtk.ListBoxRow) {
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switch i, length := r.GetIndex(), len(sl.sessions); {
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case i < 0:
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return // lulwut
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// If the selection IS the last button.
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case i == length:
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svcctrl.AuthenticateSession()
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// If the selection is within range and is not the last button.
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case i < length:
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if row, ok := sl.sessions[primitives.GetName(r)]; ok {
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row.Activate()
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}
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}
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})
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return sl
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}
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func (sl *List) Sessions() []*Row {
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// We already know the size beforehand. Allocate it wisely.
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var rows = make([]*Row, 0, len(sl.sessions))
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// Loop over widget children.
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primitives.EachChildren(sl.ListBox, func(i int, v interface{}) bool {
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var id = primitives.GetName(v.(primitives.Namer))
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if row, ok := sl.sessions[id]; ok {
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rows = append(rows, row)
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}
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return false
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})
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return rows
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}
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// Session returns the session row with the given ID. A nil Row is returned if
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// none is found.
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func (sl *List) Session(id string) *Row {
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row, _ := sl.sessions[id]
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return row
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}
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// AddSessionRow adds the given row as a session into the list.
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func (sl *List) AddSessionRow(id string, row *Row) {
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// !!! IMPORTANT !!! Guarantee that there is NO collision.
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if _, ok := sl.sessions[id]; ok {
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panic("BUG: Duplicate session; AddSessionRow caller did not check Session.")
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}
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// Insert the row RIGHT BEFORE the add button.
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sl.ListBox.Insert(row, len(sl.sessions))
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// Set the map, which increases the length by 1.
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sl.sessions[id] = row
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// Assert that a name can be obtained.
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namer := primitives.Namer(row)
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namer.SetName(id) // set ID here, get it in Move
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}
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func (sl *List) RemoveSessionRow(sessionID string) bool {
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r, ok := sl.sessions[sessionID]
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if ok {
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delete(sl.sessions, sessionID)
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sl.ListBox.Remove(r)
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}
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return ok
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}
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// MoveSession moves sessions around. This function must not touch the add
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// button.
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func (sl *List) MoveSession(targetID, movingID string) {
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// Get the widget of the row that is moving.
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var moving, ok = sl.sessions[movingID]
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if !ok {
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return // sometimes movingID might come from other services
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}
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// Find the current position of the row that we're moving the other one
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// underneath of.
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var rowix = drag.Find(sl.ListBox, targetID)
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// Reorder the box.
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sl.ListBox.Remove(moving)
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sl.ListBox.Insert(moving, rowix)
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}
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func (sl *List) UnselectAll() {
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sl.ListBox.UnselectAll()
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}
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