func (e *CodeEditor) ShowSuggestionList() {
if e.suggestionProvider == nil || e.IsSuggestionListShowing() {
return
}
caret := e.controller.LastCaret()
s, _ := e.controller.WordAt(caret)
suggestions := e.suggestionProvider.SuggestionsAt(s)
if len(suggestions) == 0 {
e.HideSuggestionList()
return
}
e.suggestionAdapter.SetSuggestions(suggestions)
e.SortSuggestionList()
child := e.AddChild(e.suggestionList)
// Position the suggestion list below the last caret
lineIdx := e.controller.LineIndex(caret)
// TODO: What if the last caret is not visible?
bounds := e.Size().Rect().Contract(e.Padding())
line := e.Line(lineIdx)
lineOffset := gxui.ChildToParent(math.ZeroPoint, line, e.outer)
target := line.PositionAt(caret).Add(lineOffset)
cs := e.suggestionList.DesiredSize(math.ZeroSize, bounds.Size())
e.suggestionList.Select(e.suggestionList.Adapter().ItemAt(0))
e.suggestionList.SetSize(cs)
child.Layout(cs.Rect().Offset(target).Intersect(bounds))
}
func (e *CodeEditor) updateSuggestionList() {
caret := e.Controller().LastCaret()
lineIdx := e.LineIndex(caret)
text := e.Controller().Line(lineIdx)
// TODO: This only skips suggestions on line comments, not block comments
// (/* ... */). Since block comments seem to be pretty uncommon in Go,
// I'm not going to worry about it just yet. Ideally, this would be solved
// by having the syntax highlighting logic provide some context details to
// the editor, so it knows some information about the context surrounding
// the caret.
if comment := strings.Index(text, "//"); comment != -1 && comment <= caret {
e.HideSuggestionList()
return
}
start, _ := e.Controller().WordAt(caret)
suggestions := e.SuggestionProvider().SuggestionsAt(start)
// TODO: if len(suggestions) == 1, show the completion in-line
// instead of in a completion box.
longest := 0
for _, suggestion := range suggestions {
suggestionText := suggestion.(fmt.Stringer).String()
if len(suggestionText) > longest {
longest = len(suggestionText)
}
}
size := e.Font().GlyphMaxSize()
size.W *= longest
e.adapter.SetSize(size)
partial := e.Controller().TextRange(start, caret)
e.adapter.SetSuggestions(suggestions)
e.adapter.Sort(partial)
if e.adapter.Len() == 0 {
e.HideSuggestionList()
return
}
e.suggestions.Select(e.suggestions.Adapter().ItemAt(0))
// Position the suggestion list below the last caret
bounds := e.Size().Rect().Contract(e.Padding())
line := e.Line(lineIdx)
lineOffset := gxui.ChildToParent(math.ZeroPoint, line, e)
target := line.PositionAt(caret).Add(lineOffset)
cs := e.suggestions.DesiredSize(math.ZeroSize, bounds.Size())
e.suggestions.SetSize(cs)
e.suggestionsChild.Layout(cs.Rect().Offset(target).Intersect(bounds))
e.suggestions.Redraw()
e.Redraw()
}
func (e *editor) updateSuggestionList() {
caret := e.Controller().LastCaret()
suggestions := e.SuggestionProvider().SuggestionsAt(caret)
if len(suggestions) == 0 {
// TODO: if len(suggestions) == 1, show the completion in-line
// instead of in a completion box.
e.HideSuggestionList()
return
}
longest := 0
for _, suggestion := range suggestions {
suggestionText := suggestion.(fmt.Stringer).String()
if len(suggestionText) > longest {
longest = len(suggestionText)
}
}
size := e.Font().GlyphMaxSize()
size.W *= longest
e.adapter.SetSize(size)
e.adapter.SetSuggestions(suggestions)
e.SortSuggestionList()
child := e.AddChild(e.suggestions)
// Position the suggestion list below the last caret
lineIdx := e.LineIndex(caret)
// TODO: What if the last caret is not visible?
bounds := e.Size().Rect().Contract(e.Padding())
line := e.Line(lineIdx)
lineOffset := gxui.ChildToParent(math.ZeroPoint, line, e)
target := line.PositionAt(caret).Add(lineOffset)
cs := e.suggestions.DesiredSize(math.ZeroSize, bounds.Size())
e.suggestions.Select(e.suggestions.Adapter().ItemAt(0))
e.suggestions.SetSize(cs)
child.Layout(cs.Rect().Offset(target).Intersect(bounds))
}