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Fix mutex usage in List.MouseHandler

tablepad
Trevor Slocum 2020-05-08 16:12:48 -07:00
parent 68e4485d34
commit 41db607cc9
2 changed files with 24 additions and 10 deletions
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2
demos/presentation/main.go
View File

@ -40,7 +40,7 @@ func main() {
if debugPort > 0 {
go func() {
log.Println(http.ListenAndServe(fmt.Sprintf("localhost:%d", debugPort), nil))
log.Fatal(http.ListenAndServe(fmt.Sprintf("localhost:%d", debugPort), nil))
}()
}

32
list.go
View File

@ -904,9 +904,7 @@ func (l *List) InputHandler() func(event *tcell.EventKey, setFocus func(p Primit
}
x, y, _, _ := l.GetInnerRect()
l.Unlock()
l.ContextMenu.show(l.currentItem, x+offsetX, y+offsetY, setFocus)
l.Lock()
defer l.ContextMenu.show(l.currentItem, x+offsetX, y+offsetY, setFocus)
} else if l.currentItem >= 0 && l.currentItem < len(l.items) {
item := l.items[l.currentItem]
if item.Enabled {
@ -1015,14 +1013,18 @@ func (l *List) indexAtPoint(x, y int) int {
// MouseHandler returns the mouse handler for this primitive.
func (l *List) MouseHandler() func(action MouseAction, event *tcell.EventMouse, setFocus func(p Primitive)) (consumed bool, capture Primitive) {
return l.WrapMouseHandler(func(action MouseAction, event *tcell.EventMouse, setFocus func(p Primitive)) (consumed bool, capture Primitive) {
l.Lock()
// Pass events to context menu.
if l.ContextMenu.open && l.ContextMenu.list != nil && l.ContextMenu.list.InRect(event.Position()) {
l.ContextMenu.list.MouseHandler()(action, event, setFocus)
defer l.ContextMenu.list.MouseHandler()(action, event, setFocus)
consumed = true
l.Unlock()
return
}
if !l.InRect(event.Position()) {
l.Unlock()
return false, nil
}
@ -1030,33 +1032,44 @@ func (l *List) MouseHandler() func(action MouseAction, event *tcell.EventMouse,
switch action {
case MouseLeftClick:
if l.ContextMenu.open {
l.ContextMenu.hide(setFocus)
defer l.ContextMenu.hide(setFocus)
consumed = true
l.Unlock()
return
}
l.Unlock()
setFocus(l)
l.Lock()
index := l.indexAtPoint(event.Position())
if index != -1 {
item := l.items[index]
if item.Enabled {
l.currentItem = index
if item.Selected != nil {
l.Unlock()
item.Selected()
l.Lock()
}
if l.selected != nil {
l.Unlock()
l.selected(index, item.MainText, item.SecondaryText, item.Shortcut)
l.Lock()
}
if index != l.currentItem && l.changed != nil {
l.Unlock()
l.changed(index, item.MainText, item.SecondaryText, item.Shortcut)
l.Lock()
}
}
}
consumed = true
case MouseMiddleClick:
if l.ContextMenu.open {
l.ContextMenu.hide(setFocus)
defer l.ContextMenu.hide(setFocus)
consumed = true
l.Unlock()
return
}
case MouseRightDown:
@ -1068,16 +1081,16 @@ func (l *List) MouseHandler() func(action MouseAction, event *tcell.EventMouse,
if item.Enabled {
l.currentItem = index
if index != l.currentItem && l.changed != nil {
l.Unlock()
l.changed(index, item.MainText, item.SecondaryText, item.Shortcut)
l.Lock()
}
}
}
if l.ContextMenu.list != nil && len(l.ContextMenu.list.items) > 0 {
l.Unlock()
l.ContextMenu.show(l.currentItem, x, y, setFocus)
l.Lock()
l.ContextMenu.drag = true
defer l.ContextMenu.show(l.currentItem, x, y, setFocus)
} else {
defer l.MouseHandler()(MouseLeftClick, event, setFocus)
}
@ -1111,6 +1124,7 @@ func (l *List) MouseHandler() func(action MouseAction, event *tcell.EventMouse,
consumed = true
}
l.Unlock()
return
})
}