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Revert "Revert "Wait for other callbacks before load SVG code"" (#772)

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* Add back bitmap jumping fix

* Cancel previous async action if a new one is queued, and move zoomToFit call until after import

* Make bitmap load cancellable too
This commit is contained in:
DD Liu 2018-11-20 14:10:25 -05:00 committed by GitHub
parent 6d69e7c65f
commit badc549fdc
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 79 additions and 50 deletions
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45
src/containers/paper-canvas.jsx
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@ -25,8 +25,10 @@ class PaperCanvas extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'clearQueuedImport',
'setCanvas',
'importSvg',
'initializeSvg',
'maybeZoomToFit',
'switchCostume'
]);
@ -65,9 +67,21 @@ class PaperCanvas extends React.Component {
}
}
componentWillUnmount () {
this.clearQueuedImport();
this.props.saveZoomLevel();
paper.remove();
}
clearQueuedImport () {
if (this.queuedImport) {
window.clearTimeout(this.queuedImport);
this.queuedImport = null;
}
if (this.queuedImageToLoad) {
this.queuedImageToLoad.src = '';
this.queuedImageToLoad.onload = null;
this.queuedImageToLoad = null;
}
}
switchCostume (format, image, rotationCenterX, rotationCenterY, oldZoomLevelId, newZoomLevelId) {
if (oldZoomLevelId && oldZoomLevelId !== newZoomLevelId) {
this.props.saveZoomLevel();
@ -94,6 +108,9 @@ class PaperCanvas extends React.Component {
this.importImage(format, image, rotationCenterX, rotationCenterY);
}
importImage (format, image, rotationCenterX, rotationCenterY) {
// Stop any in-progress imports
this.clearQueuedImport();
if (!image) {
this.props.changeFormat(Formats.VECTOR_SKIP_CONVERT);
performSnapshot(this.props.undoSnapshot, Formats.VECTOR_SKIP_CONVERT);
@ -104,7 +121,11 @@ class PaperCanvas extends React.Component {
// import bitmap
this.props.changeFormat(Formats.BITMAP_SKIP_CONVERT);
const imgElement = new Image();
this.queuedImageToLoad = imgElement;
imgElement.onload = () => {
if (!this.queuedImageToLoad) return;
this.queuedImageToLoad = null;
getRaster().drawImage(
imgElement,
(ART_BOARD_WIDTH / 2) - rotationCenterX,
@ -120,7 +141,6 @@ class PaperCanvas extends React.Component {
} else if (format === 'svg') {
this.props.changeFormat(Formats.VECTOR_SKIP_CONVERT);
this.importSvg(image, rotationCenterX, rotationCenterY);
this.maybeZoomToFit();
} else {
log.error(`Didn't recognize format: ${format}. Use 'jpg', 'png' or 'svg'.`);
this.props.changeFormat(Formats.VECTOR_SKIP_CONVERT);
@ -171,6 +191,19 @@ class PaperCanvas extends React.Component {
performSnapshot(paperCanvas.props.undoSnapshot, Formats.VECTOR_SKIP_CONVERT);
return;
}
item.remove();
// Without the callback, rasters' load function has not been called yet, and they are
// positioned incorrectly
paperCanvas.queuedImport =
window.setTimeout(() => {
paperCanvas.initializeSvg(item, rotationCenterX, rotationCenterY, viewBox);
}, 0);
}
});
}
initializeSvg (item, rotationCenterX, rotationCenterY, viewBox) {
if (this.queuedImport) this.queuedImport = null;
const itemWidth = item.bounds.width;
const itemHeight = item.bounds.height;
@ -207,6 +240,7 @@ class PaperCanvas extends React.Component {
item.translate(new paper.Point(ART_BOARD_WIDTH / 2, ART_BOARD_HEIGHT / 2)
.subtract(itemWidth, itemHeight));
}
paper.project.activeLayer.insertChild(0, item);
if (isGroup(item)) {
// Fixes an issue where we may export empty groups
for (const child of item.children) {
@ -216,13 +250,8 @@ class PaperCanvas extends React.Component {
}
ungroupItems([item]);
}
// Without the callback, the transforms sometimes don't finish applying before the
// snapshot is taken.
window.setTimeout(
() => performSnapshot(paperCanvas.props.undoSnapshot, Formats.VECTOR_SKIP_CONVERT), 0);
}
});
performSnapshot(this.props.undoSnapshot, Formats.VECTOR_SKIP_CONVERT);
this.maybeZoomToFit();
}
setCanvas (canvas) {
this.canvas = canvas;