intval3/app/www/static/js/intval.web.js

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JavaScript
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'use strict'
const web = {};
web._header = new Headers({ 'content-type' : 'application/json' })
web.frame = function () {
const opts = {
method : 'POST',
headers : web._header
};
fetch('/frame', opts)
.then(res => {
return res.json()
})
.then(web.frameSuccess)
.catch(err => {
console.error('Error triggering frame')
console.error(err)
});
}
web.frameSuccess = function (res) {
document.getElementById('frame').blur();
console.log(`Frame ${res.dir ? 'forward' : 'backward'} took ${res.len}ms`)
if (res.dir === true) {
incCounter(1);
} else {
incCounter(-1);
}
};
web.setDir = function () {
const dir = !document.getElementById('dir').checked;
const opts = {
method : 'POST',
headers : web._header,
body : JSON.stringify({ dir : dir })
};
fetch('/dir', opts)
.then(res => {
return res.json()
})
.then(web.setDirSuccess)
.catch(err => {
console.error('Error setting direction')
console.error(err);
});
};
web.setDirSuccess = function (res) {
STATE.dir = res.dir;
setDirLabel(res.dir);
console.log(`setDir to ${res.dir}`);
};
web.getState = function () {
const opts = {
method : 'GET'
}
fetch('/status', opts)
.then(res => {
return res.json();
})
.then(setState)
.catch(err => {
console.error('Error getting state');
console.error(err);
});
};
web.setExposure = function () {
let exposure = document.getElementById('exposure').value;
let scaledExposure;
let opts
if (exposure === '' || exposure === null) {
exposure = 0;
}
scaledExposure = scaleTime(exposure, STATE.scale);
opts = {
method : 'POST',
headers : web._header,
body : JSON.stringify({ exposure : scaledExposure })
}
fetch('/exposure', opts)
.then(web.useJson)
.then(web.setExposureSuccess)
.catch(err => {
console.error('Error setting exposure');
console.error(err);
});
};
web.setExposureSuccess = function (res) {
let exposure;
if (res.exposure < BOLEX.expected) {
res.exposure = BOLEX.expected;
}
STATE.exposure = res.exposure;
exposure = shutter(STATE.exposure);
document.getElementById('str').value = exposure.str;
console.log(`setExposure to ${res.exposure}`);
};
web.setDelay = function () {
const delay = document.getElementById('delay').value;
const scaledDelay = scaleTime(delay, STATE.delayScale)
let opts = {
method : 'POST',
headers : web._header,
body : JSON.stringify({ delay : scaledDelay })
}
fetch('/delay', opts)
.then(web.useJson)
.then(web.setDelaySuccess)
.catch(err => {
console.error('Error setting delay');
console.error(err);
})
};
web.setDelaySuccess = function (res) {
STATE.delay = res.delay;
console.log(`setDelay to ${res.delay}`);
};
web.setCounter = function () {
const counter = document.getElementById('counter').value;
const change = prompt(`Change counter value?`, counter);
if (change === null || !isNumeric(change)) return false;
const opts = {
method : 'POST',
headers : web._header,
body : JSON.stringify({ counter : change })
}
fetch('/counter', opts)
.then(web.useJson)
.then(web.setCounterSuccess)
.catch(err => {
console.error('Error setting counter');
console.error(err);
})
};
web.setCounterSuccess = function (res) {
STATE.counter = res.counter;
forceCounter(res.counter);
console.log(`setCounter to ${res.counter}`);
};
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web.sequence = function () {
const opts = {
method : 'POST',
headers : web._header,
body : JSON.stringify({})
}
fetch('/sequence', opts)
.then(web.useJson)
.then(web.sequenceSuccess)
.catch(err => {
console.error('Error getting /sequence');
console.error(err);
})
}
web.sequenceSuccess = function (res) {
if (res.started && res.started != false) {
STATE.sequence = true;
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document.getElementById('seq').focus();
if (!document.getElementById('seq').classList.contains('focus')) {
document.getElementById('seq').classList.add('focus');
}
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} else if (res.stopped) {
STATE.sequence = false;
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document.getElementById('seq').blur();
document.getElementById('seq').classList.remove('focus');
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}
}
web.useJson = function (res) {
return res.json();
}
web.init = function () {
window.frame = web.frame;
window.getState = web.getState;
window.setDir = web.setDir;
window.setDelay = web.setDelay;
window.setExposure = web.setExposure;
window.setCounter = web.setCounter;
window.sequence = web.sequence;
console.log('started web')
};