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A11y: screen navigation improvements, see #1181

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This commit is contained in:
Pieter Vander Vennet 2023-12-15 01:46:01 +01:00
parent 66369ef0b4
commit af4d9bb2bf
25 changed files with 483 additions and 325 deletions
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66
src/Models/ThemeViewState.ts
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@ -128,6 +128,11 @@ export default class ThemeViewState implements SpecialVisualizationState {
* All 'level'-tags that are available with the current features
*/
readonly floors: Store<string[]>
/**
* If true, the user interface will toggle some extra aids for people using screenreaders and keyboard navigation
* Triggered by navigating the map with arrows or by pressing 'space' or 'enter'
*/
public readonly visualFeedback: UIEventSource<boolean> = new UIEventSource<boolean>(false)
private readonly newPointDialog: FilteredLayer
constructor(layout: LayoutConfig) {
@ -372,6 +377,7 @@ export default class ThemeViewState implements SpecialVisualizationState {
public focusOnMap() {
if (this.map.data) {
this.map.data.getCanvas().focus()
console.log("Focused on map")
return
}
this.map.addCallbackAndRunD((map) => {
@ -437,6 +443,13 @@ export default class ThemeViewState implements SpecialVisualizationState {
* Various small methods that need to be called
*/
private miscSetup() {
this.mapProperties.onKeyNavigationEvent((keyEvent) => {
if (["north", "east", "south", "west"].indexOf(keyEvent.key) >= 0) {
this.visualFeedback.setData(true)
return true // Our job is done, unregister
}
})
this.userRelatedState.markLayoutAsVisited(this.layout)
this.selectedElement.addCallbackAndRunD((feature) => {
@ -460,7 +473,7 @@ export default class ThemeViewState implements SpecialVisualizationState {
* @private
*/
private selectClosestAtCenter(i: number = 0) {
this.mapProperties.lastKeyNavigation.setData(Date.now() / 1000)
this.visualFeedback.setData(true)
const toSelect = this.closestFeatures.features.data[i]
if (!toSelect) {
return
@ -495,35 +508,30 @@ export default class ThemeViewState implements SpecialVisualizationState {
}
)
this.mapProperties.lastKeyNavigation.addCallbackAndRunD((_) => {
Hotkeys.RegisterHotkey(
{
nomod: " ",
onUp: true,
},
Translations.t.hotkeyDocumentation.selectItem,
() => this.selectClosestAtCenter(0)
)
Hotkeys.RegisterHotkey(
{
nomod: "Spacebar",
onUp: true,
},
Translations.t.hotkeyDocumentation.selectItem,
() => this.selectClosestAtCenter(0)
)
for (let i = 1; i < 9; i++) {
Hotkeys.RegisterHotkey(
{
nomod: "" + i,
onUp: true,
},
Translations.t.hotkeyDocumentation.selectItem,
() => this.selectClosestAtCenter(i - 1)
)
Hotkeys.RegisterHotkey(
{
nomod: " ",
onUp: true,
},
Translations.t.hotkeyDocumentation.selectItem,
() => {
if (this.selectedElement.data !== undefined) {
return false
}
this.selectClosestAtCenter(0)
}
return true // unregister
})
)
for (let i = 1; i < 9; i++) {
Hotkeys.RegisterHotkey(
{
nomod: "" + i,
onUp: true,
},
Translations.t.hotkeyDocumentation.selectItem,
() => this.selectClosestAtCenter(i - 1)
)
}
this.featureSwitches.featureSwitchBackgroundSelection.addCallbackAndRun((enable) => {
if (!enable) {