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Make the widget runnable as a browser demo. #15

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Make the widget runnable as a browser demo. #15

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10 changes: 10 additions & 0 deletions BART.wdgt/BART.html
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,16 @@

<!-- JavaScript -->

<script>
window.widget = {
preferenceForKey: (k) => localStorage.getItem(k),
setPreferenceForKey: (v, k) => localStorage.setItem(k, v ?? ''),
openURL: (url) => window.open(url, '_blank'),
system: () => ({ outputString: '' }),
onshow: null, onhide: null, onremove: null,
};
</script>

<script type='text/javascript' src='Script/MiscUtils.js' charset='utf-8'></script>
<script type='text/javascript' src='Script/ArrayUtils.js' charset='utf-8'></script>
<script type='text/javascript' src='Script/DateUtils.js' charset='utf-8'></script>
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9 changes: 6 additions & 3 deletions BART.wdgt/Script/BART.js
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Expand Up @@ -85,9 +85,12 @@ function Bart () {
// to the trip list are incorrect, but it works because the the trip list only cares
// about deltas, not absolutes.
function getCoordsFromEvent (event) {
if (!event.clientX || !event.clientY) { return {} }
var x = event.clientX - 8; // canvas left
var y = event.clientY - 31; // titlebar height
if (event.clientX == null || event.clientY == null) { return {} }
var canvas = document.getElementById("bart_map_canvas")
var rect = canvas.getBoundingClientRect()
var scale = rect.width / canvas.width // handles CSS transform: scale()
var x = (event.clientX - rect.left) / scale
var y = (event.clientY - rect.top) / scale
return { x:x, y:y }
}

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