edit_preedit_test.go RawHistoryFolder

1package ui
2
3import (
4	"github.com/bnema/nefergui/internal/css"
5	"github.com/bnema/nefergui/internal/edit"
6	"github.com/bnema/nefergui/internal/text"
7	"testing"
8)
9
10func TestPreeditInlineWithoutModelMutation(t *testing.T) {
11	catalog, err := text.Load(text.DirectorySource("../../testdata/fonts"))
12	if err != nil {
13		t.Fatal(err)
14	}
15	r := newRuntime()
16	r.setTextEngine(text.NewEngine(catalog))
17	r.styles = css.Compile(css.UA(), css.Parse(`input {width:250px;height:28px;font-size:16px}`))
18	value := "ab"
19	view := func(f *Frame) { f.Root().Input("preedit", &value) }
20	r.Build(view)
21	r.route(key("Tab"))
22	r.Build(view)
23	id := idKey(r.Target(0))
24	r.edits[id].Move(1, false)
25	r.route(platformInput{Kind: "ime-done", IME: edit.IMEBatch{Preedit: "éx", Begin: len("é")}})
26	r.Build(view)
27	if value != "ab" || r.committed.children[0].text != "ab" {
28		t.Fatalf("composition changed model/display text: %q %q", value, r.committed.children[0].text)
29	}
30	seen := map[string]bool{}
31	var start, width, caret float64
32	for _, cmd := range r.output.Display {
33		if cmd.ID != id {
34			continue
35		}
36		seen[cmd.Op] = true
37		switch cmd.Op {
38		case "preedit-text":
39			if cmd.Text != "éx" || len(cmd.Runs) == 0 {
40				t.Fatalf("unshaped preedit: %+v", cmd)
41			}
42			start = cmd.Rect.X
43			width = cmd.Rect.W
44		case "preedit-caret":
45			caret = cmd.Rect.X
46		case "preedit-underline":
47			if cmd.Rect.W <= 0 || cmd.Rect.H != 1 {
48				t.Fatalf("bad underline %+v", cmd)
49			}
50		}
51	}
52	if !seen["preedit-text"] || !seen["preedit-underline"] || !seen["preedit-caret"] || !(caret > start && caret < start+width) {
53		t.Fatalf("preedit commands %v x=%g width=%g cursor=%g", seen, start, width, caret)
54	}
55}