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Fix nbagg in Chrome 84 #18142

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Merged
merged 3 commits into from
Aug 2, 2020
Merged

Fix nbagg in Chrome 84 #18142

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9ad99c4
Fix nbAgg sizing on Chrome 84.
QuLogic Aug 1, 2020
d50fded
nbagg: Use device sized content size to resize canvas.
QuLogic Aug 1, 2020
d965261
nbAgg: Fix disabling the context menu in the canvas.
QuLogic Aug 1, 2020
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29 changes: 25 additions & 4 deletions lib/matplotlib/backends/web_backend/js/mpl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -172,17 +172,37 @@ mpl.figure.prototype._init_canvas = function () {
var entry = entries[i];
var width, height;
if (entry.contentBoxSize) {
width = entry.contentBoxSize.inlineSize;
height = entry.contentBoxSize.blockSize;
if (entry.contentBoxSize instanceof Array) {
// Chrome 84 implements new version of spec.
width = entry.contentBoxSize[0].inlineSize;
height = entry.contentBoxSize[0].blockSize;
} else {
// Firefox implements old version of spec.
width = entry.contentBoxSize.inlineSize;
height = entry.contentBoxSize.blockSize;
}
} else {
// Chrome <84 implements even older version of spec.
width = entry.contentRect.width;
height = entry.contentRect.height;
}

// Keep the size of the canvas and rubber band canvas in sync with
// the canvas container.
canvas.setAttribute('width', width * mpl.ratio);
canvas.setAttribute('height', height * mpl.ratio);
if (entry.devicePixelContentBoxSize) {
// Chrome 84 implements new version of spec.
canvas.setAttribute(
'width',
entry.devicePixelContentBoxSize[0].inlineSize
);
canvas.setAttribute(
'height',
entry.devicePixelContentBoxSize[0].blockSize
);
} else {
canvas.setAttribute('width', width * mpl.ratio);
canvas.setAttribute('height', height * mpl.ratio);
}
canvas.setAttribute(
'style',
'width: ' + width + 'px; height: ' + height + 'px;'
Expand Down Expand Up @@ -254,6 +274,7 @@ mpl.figure.prototype._init_canvas = function () {

// Disable right mouse context menu.
this.rubberband_canvas.addEventListener('contextmenu', function (_e) {
event.preventDefault();
return false;
});

Expand Down