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import { chromaticScale } from "./scale.mjs";
function dots(i) {
switch (i+1) {
case 3:
case 7:
case 9:
return '•'
case 5:
case 12:
return '••'
}
}
/*
this.querySelectorAll('.open').forEach(elt => {
elt.onclick = this.openClicked.bind(this);
});
this.querySelectorAll('input[type="radio"]').forEach(elt => {
elt.onmousedown = this.fretMousedown.bind(this);
elt.onclick = this.fretClicked.bind(this);
});
#mousedownVal;
fretMousedown(e) {
// at mousedown time, the form hasn't yet been changed. to support
// deselecting elements, we need to know what the previous
// selection was, so store it here.
//
// it'd be nice to be able to do this just in the click handler.
this.#mousedownVal = e.target.checked;
}
openClicked(e) {
const elt = e.target.parentNode;
if (elt.classList.contains('muted')) {
elt.classList.remove('muted');
elt.querySelectorAll('input[type="radio"]').forEach(input => {
input.disabled = false;
})
} else {
elt.classList.add('muted');
elt.querySelectorAll('input[type="radio"]').forEach(input => {
input.checked = false;
input.disabled = true;
})
}
this.formChanged();
}
fretClicked(e) {
const elt = e.target;
// if this element was selected at mousedown time, deselect it
// now.
if (this.#mousedownVal) {
elt.checked = false;
// doesn't get called automatically.
this.formChanged();
}
}
*/
export default class extends HTMLElement {
// TODO: probably not worth observing frets since everything just
// gets re-rendered when they change.
static observedAttributes = ['frets', 'tonic', 'selected'];
static name = 'x-string';
static register() {
console.debug('Registering Element', this.name, this);
customElements.define(this.name, this);
}
// TODO: this is a horrible hack, but i don't know how to make
// each string's input unique. maybe wrap them in their own form?
myName() {
return 'string';
}
attributeChangedCallback(name, old, v) {
console.debug('String#attributeChangedCallback',
this, name, old, v);
if (old != v) {
this.render();
}
}
connectedCallback() {
console.debug('String#connectedCallback');
}
zot() {
console.debug('String#zot', this);
const tmpl = this.querySelector('template');
console.log(' -- tmpl', tmpl);
this.querySelectorAll('input[slot="fret"]').forEach(elt => {
console.debug(' -- del', elt, parent);
// TODO: this is precisely what i was trying to avoid: the
// code has to know exactly what the template looks like.
elt.parentNode.parentNode.removeChild(elt.parentNode);
})
}
muteClicked(e) {
console.debug('String#muteClicked', this, e);
if (this.getAttribute('selected') !== 'x') {
this.setAttribute('selected', 'x');
this.classList.add('muted');
} else {
this.setAttribute('selected', this.getAttribute('tonic'));
this.classList.remove('muted');
}
}
fretClicked(e) {
console.debug('String#fretClicked', this, e);
console.debug(' -- note', e.target.note);
this.setAttribute('selected', e.target.note);
}
render() {
console.debug('String#render');
this.querySelectorAll('input[name="muted"]').forEach(elt => {
console.debug(' -- input', elt);
elt.onchange = this.muteClicked.bind(this);
});
this.zot();
const tmpl = this.querySelector('template');
this.querySelectorAll('slot[name="open"]').forEach(s => {
s.note = this.getAttribute('tonic');
s.innerText = s.note;
s.parentNode.onclick = this.fretClicked.bind(this);
})
const chromIndex = chromaticScale.indexOf(this.getAttribute('tonic'));
const frets = Number(this.getAttribute('frets'));
for (let i = 1; i <= frets; i++) {
const item = tmpl.content.cloneNode(true);
item.querySelectorAll('input[slot="fret"]').forEach(s => {
s.setAttribute('name', this.myName());
s.setAttribute('value', chromaticScale[chromIndex + i]);
s.parentNode.onclick = this.fretClicked.bind(this);
})
tmpl.parentNode.insertBefore(item, tmpl);
}
this.querySelectorAll('slot[name="selected"]').forEach(s => {
s.innerText = this.getAttribute('selected');
})
}
}
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