forked from joejulian/gio
Elias Naur
4a4fe5a69b
Before this change, Clickable state updates would happen in Layout. However, that is too late in cases where clicks affects layout that contiains the Clickable. This change removes state changes from Layout and moves them to Clicks, to allow users pre-layout access. Note that Layout itself processes events, which means users can no longer access clicks after Layout. Signed-off-by: Elias Naur <mail@eliasnaur.com>
105 lines
2.1 KiB
Go
105 lines
2.1 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package widget_test
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import (
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"image"
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"testing"
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"gioui.org/io/key"
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"gioui.org/io/router"
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"gioui.org/io/system"
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"gioui.org/layout"
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"gioui.org/op"
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"gioui.org/widget"
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)
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func TestClickable(t *testing.T) {
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var (
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ops op.Ops
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r router.Router
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b1 widget.Clickable
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b2 widget.Clickable
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)
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gtx := layout.NewContext(&ops, system.FrameEvent{Queue: &r})
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layout := func() {
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b1.Layout(gtx, func(gtx layout.Context) layout.Dimensions {
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return layout.Dimensions{Size: image.Pt(100, 100)}
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})
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// buttons are on top of each other but we only use focus and keyevents, so this is fine
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b2.Layout(gtx, func(gtx layout.Context) layout.Dimensions {
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return layout.Dimensions{Size: image.Pt(100, 100)}
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})
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}
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frame := func() {
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ops.Reset()
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layout()
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r.Frame(gtx.Ops)
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}
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// frame: request focus for button 1
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b1.Focus()
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frame()
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// frame: gain focus for button 1
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frame()
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if !b1.Focused() {
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t.Error("button 1 did not gain focus")
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}
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if b2.Focused() {
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t.Error("button 2 should not have focus")
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}
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// frame: press & release return
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frame()
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r.Queue(
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key.Event{
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Name: key.NameReturn,
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State: key.Press,
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},
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key.Event{
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Name: key.NameReturn,
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State: key.Release,
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},
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)
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if !b1.Clicked(gtx) {
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t.Error("button 1 did not get clicked when it got return press & release")
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}
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if b2.Clicked(gtx) {
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t.Error("button 2 got clicked when it did not have focus")
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}
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// frame: press return down
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r.Queue(
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key.Event{
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Name: key.NameReturn,
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State: key.Press,
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},
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)
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frame()
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if b1.Clicked(gtx) {
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t.Error("button 1 got clicked, even if it only got return press")
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}
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// frame: request focus for button 2
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b2.Focus()
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frame()
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// frame: gain focus for button 2
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frame()
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if b1.Focused() {
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t.Error("button 1 should not have focus")
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}
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if !b2.Focused() {
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t.Error("button 2 did not gain focus")
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}
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// frame: release return
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r.Queue(
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key.Event{
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Name: key.NameReturn,
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State: key.Release,
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},
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)
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frame()
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if b1.Clicked(gtx) {
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t.Error("button 1 got clicked, even if it had lost focus")
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}
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if b2.Clicked(gtx) {
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t.Error("button 2 should not have been clicked, as it only got return release")
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}
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}
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