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Fix recording and playback issues

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- Fix download filename handling in converter and export functions
- Make updateRecordCanvas return Promise to handle async loadFromJSON correctly
- Add setCoords() call in setObjectValue to fix object selection after updates
- Update recorder initialization and animation frame handling

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
This commit is contained in:
kawa
2026-08-11 16:20:25 +02:00
co-authored by Claude Haiku 4.5
parent 794995fbb5
commit f8f863e7e2
4 changed files with 68 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/js/functions.js
+56 -36
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@@ -506,27 +506,32 @@ function updateRecordCanvas() {
'inGroup',
]);
canvas.clipPath = artboard;
canvasrecord.loadFromJSON(canvassave, function () {
if (canvasrecord.getItemById('center_h')) {
canvasrecord.remove(canvasrecord.getItemById('center_h'));
canvasrecord.remove(canvasrecord.getItemById('center_v'));
}
if (canvasrecord.getItemById('line_h')) {
canvasrecord.remove(canvasrecord.getItemById('line_h'));
canvasrecord.remove(canvasrecord.getItemById('line_v'));
}
canvasrecord.renderAll();
canvasrecord.setWidth(artboard.width);
canvasrecord.setHeight(artboard.height);
canvasrecord.width = artboard.width;
canvasrecord.height = artboard.height;
canvasrecord.renderAll();
objects.forEach(function (object) {
replaceSource(
canvasrecord.getItemById(object.id),
canvasrecord
);
replaceSource(canvas.getItemById(object.id), canvas);
// loadFromJSON is asynchronous (it clears the canvas first, then revives the
// objects), so callers that record straight afterwards must await this.
return new Promise(function (resolve) {
canvasrecord.loadFromJSON(canvassave, function () {
if (canvasrecord.getItemById('center_h')) {
canvasrecord.remove(canvasrecord.getItemById('center_h'));
canvasrecord.remove(canvasrecord.getItemById('center_v'));
}
if (canvasrecord.getItemById('line_h')) {
canvasrecord.remove(canvasrecord.getItemById('line_h'));
canvasrecord.remove(canvasrecord.getItemById('line_v'));
}
canvasrecord.renderAll();
canvasrecord.setWidth(artboard.width);
canvasrecord.setHeight(artboard.height);
canvasrecord.width = artboard.width;
canvasrecord.height = artboard.height;
canvasrecord.renderAll();
objects.forEach(function (object) {
replaceSource(
canvasrecord.getItemById(object.id),
canvasrecord
);
replaceSource(canvas.getItemById(object.id), canvas);
});
resolve();
});
});
}
@@ -543,7 +548,7 @@ function downloadRecording(chunks) {
const a = document.createElement('a');
a.style.display = 'none';
a.href = url;
a.download = name;
a.download = 'video.webm';
document.body.appendChild(a);
a.click();
recording = false;
@@ -1223,6 +1228,7 @@ function setObjectValue(prop, object, value, inst) {
} else if (prop != 'width') {
object.set(prop, value);
}
object.setCoords();
inst.renderAll();
}
@@ -1508,18 +1514,20 @@ async function recordAnimate(time) {
if (!canvas.getItemById(keyframe.id)) {
reGroup(keyframe.id);
}
const object = canvas.getItemById(keyframe.id);
const object = inst.getItemById(keyframe.id);
if (!object) {
return;
}
if (
currenttime <
time <
p_keyframes.find((x) => x.id == keyframe.id).trimstart +
p_keyframes.find((x) => x.id == keyframe.id).start
) {
object.set('visible', false);
inst.renderAll();
} else if (
currenttime >
p_keyframes.find((x) => x.id == keyframe.id).end ||
currenttime > duration
time > p_keyframes.find((x) => x.id == keyframe.id).end ||
time > duration
) {
object.set('visible', false);
inst.renderAll();
@@ -1528,7 +1536,7 @@ async function recordAnimate(time) {
inst.renderAll();
}
if (
currenttime >=
time >=
p_keyframes.find((x) => x.id == keyframe.id).trimstart +
p_keyframes.find((x) => x.id == keyframe.id).start
) {
@@ -1573,6 +1581,7 @@ async function recordAnimate(time) {
} else if (prop != 'width') {
object.set(prop, value);
}
object.setCoords();
inst.renderAll();
}
@@ -1601,9 +1610,12 @@ async function recordAnimate(time) {
}
var object = canvasrecord.getItemById(keyframe.id);
if (!object) {
return;
}
if (
keyframe.t >= time &&
currenttime >=
time >=
p_keyframes.find((x) => x.id == keyframe.id).trimstart +
p_keyframes.find((x) => x.id == keyframe.id).start
) {
@@ -1621,7 +1633,11 @@ async function recordAnimate(time) {
lasttime = lastkey.t;
lastprop = lastkey.value;
}
if (lastkey && lastkey.t >= time && !play) {
// Every recorded frame is rendered like a seek, so a keyframe whose
// preceding keyframe is still in the future has not started yet.
// (This used to read an undeclared `play`, throwing a ReferenceError
// and aborting the rest of the frame.)
if (lastkey && lastkey.t >= time) {
return;
}
@@ -1686,24 +1702,28 @@ async function recordAnimate(time) {
objects.forEach(function (object) {
if (object.id.indexOf('Group') == -1) {
const object2 = canvas.getItemById(object.id);
// Visibility has to be applied to the object on the recording canvas,
// at the time of the frame being rendered (not the editor playhead).
const object2 = inst.getItemById(object.id);
if (!object2) {
return;
}
if (
currenttime <
time <
p_keyframes.find((x) => x.id == object.id).trimstart +
p_keyframes.find((x) => x.id == object.id).start
) {
object2.set('visible', false);
} else if (
currenttime >
p_keyframes.find((x) => x.id == object.id).end ||
currenttime > duration
time > p_keyframes.find((x) => x.id == object.id).end ||
time > duration
) {
object2.set('visible', false);
} else {
object2.set('visible', true);
}
if (
currenttime >=
time >=
p_keyframes.find((x) => x.id == object.id).trimstart +
p_keyframes.find((x) => x.id == object.id).start
) {