Files
gio/io/router/key_test.go
T
Chris Waldon 44ec48d325 io/router: fix focused key event propagation
When a key.InputOp is focused, keypresses that it does not explicitly
include in its key set should check for ancestor clip areas that are
interested in them. Previously this check only included ancestors of
the final clip area in the hit tree, and could fail to find ancestors
of the focused key.InputOp because they were in a different branch.

This commit also adds a test to lock in the new behavior.

This can likely be made more efficient by adding a rapid way to map
from the focused key tag to its index in the hit tree. I wasn't sure
whether the complexity was warranted, but I'm happy to do that if
it's desired.

Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
2022-06-01 19:52:59 +02:00

433 lines
10 KiB
Go

// SPDX-License-Identifier: Unlicense OR MIT
package router
import (
"image"
"reflect"
"testing"
"gioui.org/f32"
"gioui.org/io/event"
"gioui.org/io/key"
"gioui.org/io/pointer"
"gioui.org/op"
"gioui.org/op/clip"
)
func TestKeyWakeup(t *testing.T) {
handler := new(int)
var ops op.Ops
key.InputOp{Tag: handler}.Add(&ops)
var r Router
// Test that merely adding a handler doesn't trigger redraw.
r.Frame(&ops)
if _, wake := r.WakeupTime(); wake {
t.Errorf("adding key.InputOp triggered a redraw")
}
// However, adding a handler queues a Focus(false) event.
if evts := r.Events(handler); len(evts) != 1 {
t.Errorf("no Focus event for newly registered key.InputOp")
}
// Verify that r.Events does trigger a redraw.
r.Frame(&ops)
if _, wake := r.WakeupTime(); !wake {
t.Errorf("key.FocusEvent event didn't trigger a redraw")
}
}
func TestKeyMultiples(t *testing.T) {
handlers := make([]int, 3)
ops := new(op.Ops)
r := new(Router)
key.SoftKeyboardOp{Show: true}.Add(ops)
key.InputOp{Tag: &handlers[0]}.Add(ops)
key.FocusOp{Tag: &handlers[2]}.Add(ops)
key.InputOp{Tag: &handlers[1]}.Add(ops)
// The last one must be focused:
key.InputOp{Tag: &handlers[2]}.Add(ops)
r.Frame(ops)
assertKeyEvent(t, r.Events(&handlers[0]), false)
assertKeyEvent(t, r.Events(&handlers[1]), false)
assertKeyEvent(t, r.Events(&handlers[2]), true)
assertFocus(t, r, &handlers[2])
assertKeyboard(t, r, TextInputOpen)
}
func TestKeyStacked(t *testing.T) {
handlers := make([]int, 4)
ops := new(op.Ops)
r := new(Router)
key.InputOp{Tag: &handlers[0]}.Add(ops)
key.FocusOp{Tag: nil}.Add(ops)
key.SoftKeyboardOp{Show: false}.Add(ops)
key.InputOp{Tag: &handlers[1]}.Add(ops)
key.FocusOp{Tag: &handlers[1]}.Add(ops)
key.InputOp{Tag: &handlers[2]}.Add(ops)
key.SoftKeyboardOp{Show: true}.Add(ops)
key.InputOp{Tag: &handlers[3]}.Add(ops)
r.Frame(ops)
assertKeyEvent(t, r.Events(&handlers[0]), false)
assertKeyEvent(t, r.Events(&handlers[1]), true)
assertKeyEvent(t, r.Events(&handlers[2]), false)
assertKeyEvent(t, r.Events(&handlers[3]), false)
assertFocus(t, r, &handlers[1])
assertKeyboard(t, r, TextInputOpen)
}
func TestKeySoftKeyboardNoFocus(t *testing.T) {
ops := new(op.Ops)
r := new(Router)
// It's possible to open the keyboard
// without any active focus:
key.SoftKeyboardOp{Show: true}.Add(ops)
r.Frame(ops)
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputOpen)
}
func TestKeyRemoveFocus(t *testing.T) {
handlers := make([]int, 2)
ops := new(op.Ops)
r := new(Router)
// New InputOp with Focus and Keyboard:
key.InputOp{Tag: &handlers[0], Keys: "Short-Tab"}.Add(ops)
key.FocusOp{Tag: &handlers[0]}.Add(ops)
key.SoftKeyboardOp{Show: true}.Add(ops)
// New InputOp without any focus:
key.InputOp{Tag: &handlers[1], Keys: "Short-Tab"}.Add(ops)
r.Frame(ops)
// Add some key events:
event := event.Event(key.Event{Name: key.NameTab, Modifiers: key.ModShortcut, State: key.Press})
r.Queue(event)
assertKeyEvent(t, r.Events(&handlers[0]), true, event)
assertKeyEvent(t, r.Events(&handlers[1]), false)
assertFocus(t, r, &handlers[0])
assertKeyboard(t, r, TextInputOpen)
ops.Reset()
// Will get the focus removed:
key.InputOp{Tag: &handlers[0]}.Add(ops)
// Unchanged:
key.InputOp{Tag: &handlers[1]}.Add(ops)
// Remove focus by focusing on a tag that don't exist.
key.FocusOp{Tag: new(int)}.Add(ops)
r.Frame(ops)
assertKeyEventUnexpected(t, r.Events(&handlers[1]))
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputClose)
ops.Reset()
key.InputOp{Tag: &handlers[0]}.Add(ops)
key.InputOp{Tag: &handlers[1]}.Add(ops)
r.Frame(ops)
assertKeyEventUnexpected(t, r.Events(&handlers[0]))
assertKeyEventUnexpected(t, r.Events(&handlers[1]))
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputClose)
ops.Reset()
// Set focus to InputOp which already
// exists in the previous frame:
key.FocusOp{Tag: &handlers[0]}.Add(ops)
key.InputOp{Tag: &handlers[0]}.Add(ops)
key.SoftKeyboardOp{Show: true}.Add(ops)
// Remove focus.
key.InputOp{Tag: &handlers[1]}.Add(ops)
key.FocusOp{Tag: nil}.Add(ops)
r.Frame(ops)
assertKeyEventUnexpected(t, r.Events(&handlers[1]))
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputOpen)
}
func TestKeyFocusedInvisible(t *testing.T) {
handlers := make([]int, 2)
ops := new(op.Ops)
r := new(Router)
// Set new InputOp with focus:
key.FocusOp{Tag: &handlers[0]}.Add(ops)
key.InputOp{Tag: &handlers[0]}.Add(ops)
key.SoftKeyboardOp{Show: true}.Add(ops)
// Set new InputOp without focus:
key.InputOp{Tag: &handlers[1]}.Add(ops)
r.Frame(ops)
assertKeyEvent(t, r.Events(&handlers[0]), true)
assertKeyEvent(t, r.Events(&handlers[1]), false)
assertFocus(t, r, &handlers[0])
assertKeyboard(t, r, TextInputOpen)
ops.Reset()
//
// Removed first (focused) element!
//
// Unchanged:
key.InputOp{Tag: &handlers[1]}.Add(ops)
r.Frame(ops)
assertKeyEventUnexpected(t, r.Events(&handlers[0]))
assertKeyEventUnexpected(t, r.Events(&handlers[1]))
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputClose)
ops.Reset()
// Respawn the first element:
// It must receive one `Event{Focus: false}`.
key.InputOp{Tag: &handlers[0]}.Add(ops)
// Unchanged
key.InputOp{Tag: &handlers[1]}.Add(ops)
r.Frame(ops)
assertKeyEvent(t, r.Events(&handlers[0]), false)
assertKeyEventUnexpected(t, r.Events(&handlers[1]))
assertFocus(t, r, nil)
assertKeyboard(t, r, TextInputClose)
}
func TestNoOps(t *testing.T) {
r := new(Router)
r.Frame(nil)
}
func TestDirectionalFocus(t *testing.T) {
ops := new(op.Ops)
r := new(Router)
handlers := []image.Rectangle{
image.Rect(10, 10, 50, 50),
image.Rect(50, 20, 100, 80),
image.Rect(20, 26, 60, 80),
image.Rect(10, 60, 50, 100),
}
for i, bounds := range handlers {
cl := clip.Rect(bounds).Push(ops)
key.InputOp{Tag: &handlers[i]}.Add(ops)
cl.Pop()
}
r.Frame(ops)
r.MoveFocus(FocusLeft)
assertFocus(t, r, &handlers[0])
r.MoveFocus(FocusLeft)
assertFocus(t, r, &handlers[0])
r.MoveFocus(FocusRight)
assertFocus(t, r, &handlers[1])
r.MoveFocus(FocusRight)
assertFocus(t, r, &handlers[1])
r.MoveFocus(FocusDown)
assertFocus(t, r, &handlers[2])
r.MoveFocus(FocusDown)
assertFocus(t, r, &handlers[2])
r.MoveFocus(FocusLeft)
assertFocus(t, r, &handlers[3])
r.MoveFocus(FocusUp)
assertFocus(t, r, &handlers[0])
r.MoveFocus(FocusForward)
assertFocus(t, r, &handlers[1])
r.MoveFocus(FocusBackward)
assertFocus(t, r, &handlers[0])
}
func TestFocusScroll(t *testing.T) {
ops := new(op.Ops)
r := new(Router)
h := new(int)
parent := clip.Rect(image.Rect(1, 1, 14, 39)).Push(ops)
cl := clip.Rect(image.Rect(10, -20, 20, 30)).Push(ops)
key.InputOp{Tag: h}.Add(ops)
pointer.InputOp{
Tag: h,
Types: pointer.Scroll,
ScrollBounds: image.Rect(-100, -100, 100, 100),
}.Add(ops)
// Test that h is scrolled even if behind another handler.
pointer.InputOp{
Tag: new(int),
}.Add(ops)
cl.Pop()
parent.Pop()
r.Frame(ops)
r.MoveFocus(FocusLeft)
r.RevealFocus(image.Rect(0, 0, 15, 40))
evts := r.Events(h)
assertScrollEvent(t, evts[len(evts)-1], f32.Pt(6, -9))
}
func TestFocusClick(t *testing.T) {
ops := new(op.Ops)
r := new(Router)
h := new(int)
cl := clip.Rect(image.Rect(0, 0, 10, 10)).Push(ops)
key.InputOp{Tag: h}.Add(ops)
pointer.InputOp{
Tag: h,
Types: pointer.Press | pointer.Release,
}.Add(ops)
cl.Pop()
r.Frame(ops)
r.MoveFocus(FocusLeft)
r.ClickFocus()
assertEventPointerTypeSequence(t, r.Events(h), pointer.Cancel, pointer.Press, pointer.Release)
}
func TestNoFocus(t *testing.T) {
r := new(Router)
r.MoveFocus(FocusForward)
}
func TestKeyRouting(t *testing.T) {
handlers := make([]int, 5)
ops := new(op.Ops)
macroOps := new(op.Ops)
r := new(Router)
rect := clip.Rect{Max: image.Pt(10, 10)}
macro := op.Record(macroOps)
key.InputOp{Tag: &handlers[0], Keys: "A"}.Add(ops)
cl1 := rect.Push(ops)
key.InputOp{Tag: &handlers[1], Keys: "B"}.Add(ops)
key.InputOp{Tag: &handlers[2], Keys: "A"}.Add(ops)
cl1.Pop()
cl2 := rect.Push(ops)
key.InputOp{Tag: &handlers[3], Keys: "B"}.Add(ops)
key.InputOp{Tag: &handlers[4], Keys: "A"}.Add(ops)
cl2.Pop()
call := macro.Stop()
call.Add(ops)
r.Frame(ops)
A, B := key.Event{Name: "A"}, key.Event{Name: "B"}
r.Queue(A, B)
// With no focus, the events should traverse the final branch of the hit tree
// searching for handlers.
assertKeyEvent(t, r.Events(&handlers[4]), false, A)
assertKeyEvent(t, r.Events(&handlers[3]), false, B)
assertKeyEvent(t, r.Events(&handlers[2]), false)
assertKeyEvent(t, r.Events(&handlers[1]), false)
assertKeyEvent(t, r.Events(&handlers[0]), false)
r2 := new(Router)
call.Add(ops)
key.FocusOp{Tag: &handlers[2]}.Add(ops)
r2.Frame(ops)
r2.Queue(A, B)
// With focus, the events should traverse the branch of the hit tree
// containing the focused element.
assertKeyEvent(t, r2.Events(&handlers[4]), false)
assertKeyEvent(t, r2.Events(&handlers[3]), false)
assertKeyEvent(t, r2.Events(&handlers[2]), true, A)
assertKeyEvent(t, r2.Events(&handlers[1]), false, B)
assertKeyEvent(t, r2.Events(&handlers[0]), false)
}
func assertKeyEvent(t *testing.T, events []event.Event, expectedFocus bool, expectedInputs ...event.Event) {
t.Helper()
var evtFocus int
var evtKeyPress int
for _, e := range events {
switch ev := e.(type) {
case key.FocusEvent:
if ev.Focus != expectedFocus {
t.Errorf("focus is expected to be %v, got %v", expectedFocus, ev.Focus)
}
evtFocus++
case key.Event, key.EditEvent:
if len(expectedInputs) <= evtKeyPress {
t.Fatalf("unexpected key events")
}
if !reflect.DeepEqual(ev, expectedInputs[evtKeyPress]) {
t.Errorf("expected %v events, got %v", expectedInputs[evtKeyPress], ev)
}
evtKeyPress++
}
}
if evtFocus <= 0 {
t.Errorf("expected focus event")
}
if evtFocus > 1 {
t.Errorf("expected single focus event")
}
if evtKeyPress != len(expectedInputs) {
t.Errorf("expected key events")
}
}
func assertKeyEventUnexpected(t *testing.T, events []event.Event) {
t.Helper()
var evtFocus int
for _, e := range events {
switch e.(type) {
case key.FocusEvent:
evtFocus++
}
}
if evtFocus > 1 {
t.Errorf("unexpected focus event")
}
}
func assertFocus(t *testing.T, router *Router, expected event.Tag) {
t.Helper()
if got := router.key.queue.focus; got != expected {
t.Errorf("expected %v to be focused, got %v", expected, got)
}
}
func assertKeyboard(t *testing.T, router *Router, expected TextInputState) {
t.Helper()
if got := router.key.queue.state; got != expected {
t.Errorf("expected %v keyboard, got %v", expected, got)
}
}