feat(radio): answer the internet radio controls through the radio store

The Radio panel's and Cockpit's Enable, launcher, station tag,
transport and volume controls call RadioControls through the radio
store instead of DOM listeners. A refused station tag gets the kept tag
back from act(), which now returns what the answering action returned.
The Cockpit's station steps keep rotate: false. The unused element
fields go from the shell.

src/ui/views/panels/RadioPanel.vue

@@ -13,8 +13,15 @@ import SdrCard from './SdrCard.vue';
 // The Radio panel inside Context. RadioControls presents the directory row,
 // station card, transport, volume and playback line and publishes them;
 // until it does, the panel shows its initial markup. RadioTuner renders the
-// directory tuner and SdrCard the local RTL-SDR card.
-const { view: radio, sdr } = storeToRefs(useRadioStore());
+// directory tuner and SdrCard the local RTL-SDR card. Its controls call
+// RadioControls through the store.
+const store = useRadioStore();
+const { act } = store;
+const { view: radio, sdr } = storeToRefs(store);
+// A refused station tag puts the select back on the tag the filter keeps.
+const setFilter = (select) => {
+  select.value = act('setRadioFilter', select.value) ?? select.value;
+};
 // Only whether the receiver is connected reaches the panel; the card renders
 // its own frames.
 const sdrConnected = computed(() => sdr.value?.connectionActive ?? null);
@@ -31,9 +38,9 @@ const radioWords = {
 <RailPanel id="radio-panel" tag="section" start-collapsed v-class-toggle="{ ...(radio && { 'radio-enabled': radio.enabled, 'lifecycle-uncertain': radio.uncertain }), ...(sdrConnected !== null && { 'sdr-connected': sdrConnected }) }" aria-label="Internet radio and local SDR" data-i18n-aria-label :title="t('RADIO')" :toggle-words="radioWords" :glow="false" scroll>
   <template #badge><span id="radio-layer-state" class="radio-layer-state" :class="{ active: radio?.layerState.active }">{{ radio ? radio.layerState.text : t('OFF') }}</span></template>
     <div class="radio-directory-row">
-      <button id="radio-enable-btn" class="panel-layer-toggle" :class="{ active: radio?.enable.active }" type="button" :aria-pressed="String(radio?.enable.active ?? false)" :aria-label="radio?.enable.label" :aria-disabled="radio ? String(radio.enable.busy) : undefined" :aria-busy="radio ? String(radio.enable.busy) : undefined">{{ radio ? radio.enable.text : t('ENABLE') }}</button>
+      <button id="radio-enable-btn" @click="act('toggleRadio', 'panel')" class="panel-layer-toggle" :class="{ active: radio?.enable.active }" type="button" :aria-pressed="String(radio?.enable.active ?? false)" :aria-label="radio?.enable.label" :aria-disabled="radio ? String(radio.enable.busy) : undefined" :aria-busy="radio ? String(radio.enable.busy) : undefined">{{ radio ? radio.enable.text : t('ENABLE') }}</button>
       <label class="radio-filter-label" for="radio-filter" data-i18n>STATION TAG</label>
-      <select class="gev-field" id="radio-filter" aria-label="Filter stations by station tag" :disabled="radio ? radio.filter.disabled : true" v-bind="radio?.filter.color ? { style: { color: radio.filter.color } } : {}" v-range-value="radio ? radio.filter.value : 'all'" data-i18n-aria-label>
+      <select class="gev-field" id="radio-filter" @change="setFilter($event.target)" aria-label="Filter stations by station tag" :disabled="radio ? radio.filter.disabled : true" v-bind="radio?.filter.color ? { style: { color: radio.filter.color } } : {}" v-range-value="radio ? radio.filter.value : 'all'" data-i18n-aria-label>
         <option v-if="!radio?.filter.options" value="all">{{ t('All', { context: 'radio tag' }) }}</option><template v-else><option v-for="option in radio.filter.options" :key="option.id" :value="option.id" :data-radio-color="option.color" :style="{ color: option.color }" :aria-label="option.label">● {{ option.label }}</option></template>
       </select>
     </div>
@@ -44,14 +51,14 @@ const radioWords = {
     </div>
     <RadioTuner />
     <div class="radio-transport" role="group" aria-label="Radio playback" data-i18n-aria-label>
-      <button id="radio-prev-btn" type="button" aria-label="Previous filtered station" :disabled="radio ? radio.transport.stepDisabled : true" data-i18n-aria-label data-i18n>PREV</button>
-      <button id="radio-play-btn" type="button" v-class-toggle="{ active: radio?.transport.play.active }" :aria-label="radio ? radio.transport.play.label : t('Play selected station')" :disabled="radio ? radio.transport.play.disabled : true">{{ radio ? radio.transport.play.text : t('PLAY') }}</button>
-      <button id="radio-next-btn" type="button" aria-label="Next filtered station" :disabled="radio ? radio.transport.stepDisabled : true" data-i18n-aria-label data-i18n>NEXT</button>
-      <button id="radio-stop-btn" type="button" aria-label="Stop radio playback" :disabled="radio ? radio.transport.stopDisabled : true" data-i18n-aria-label data-i18n>STOP</button>
+      <button id="radio-prev-btn" @click="act('cycleRadio', -1)" type="button" aria-label="Previous filtered station" :disabled="radio ? radio.transport.stepDisabled : true" data-i18n-aria-label data-i18n>PREV</button>
+      <button id="radio-play-btn" @click="act('toggleRadioPlayback')" type="button" v-class-toggle="{ active: radio?.transport.play.active }" :aria-label="radio ? radio.transport.play.label : t('Play selected station')" :disabled="radio ? radio.transport.play.disabled : true">{{ radio ? radio.transport.play.text : t('PLAY') }}</button>
+      <button id="radio-next-btn" @click="act('cycleRadio', 1)" type="button" aria-label="Next filtered station" :disabled="radio ? radio.transport.stepDisabled : true" data-i18n-aria-label data-i18n>NEXT</button>
+      <button id="radio-stop-btn" @click="act('stopRadio')" type="button" aria-label="Stop radio playback" :disabled="radio ? radio.transport.stopDisabled : true" data-i18n-aria-label data-i18n>STOP</button>
     </div>
     <label class="radio-volume-row" for="radio-volume">
       <span data-i18n>VOLUME</span>
-      <input id="radio-volume" class="gev-quantitative-slider" type="range" min="0" max="100" value="80" aria-label="Radio volume" :disabled="radio?.volume.disabled" v-field-value="radio ? radio.volume.value : 80" data-i18n-aria-label />
+      <input id="radio-volume" @input="act('setRadioVolume', $event.target.value)" class="gev-quantitative-slider" type="range" min="0" max="100" value="80" aria-label="Radio volume" :disabled="radio?.volume.disabled" v-field-value="radio ? radio.volume.value : 80" data-i18n-aria-label />
       <output id="radio-volume-value" class="gev-slider-value" for="radio-volume">{{ radio ? `${radio.volume.value}%` : '80%' }}</output>
     </label>
     <div id="radio-playback-state" class="radio-playback-state" :class="{ error: radio?.playback.error }" role="status" aria-live="polite">{{ radio ? radio.playback.text : t('Radio off') }}</div>