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Remove ResizeObserver ponyfill #31669

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Merged
ksunden merged 1 commit into from
May 15, 2026
Merged

Remove ResizeObserver ponyfill #31669

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108 changes: 0 additions & 108 deletions LICENSE/LICENSE_JSXTOOLS_RESIZE_OBSERVER
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16 changes: 1 addition & 15 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 @@ -183,17 +183,7 @@ mpl.figure.prototype._init_canvas = function () {
'z-index: 1;'
);

// Apply a ponyfill if ResizeObserver is not implemented by browser.
if (this.ResizeObserver === undefined) {
if (window.ResizeObserver !== undefined) {
this.ResizeObserver = window.ResizeObserver;
} else {
var obs = _JSXTOOLS_RESIZE_OBSERVER({});
this.ResizeObserver = obs.ResizeObserver;
}
}

this.resizeObserverInstance = new this.ResizeObserver(function (entries) {
this.resizeObserverInstance = new ResizeObserver(function (entries) {
// There's no need to resize if the WebSocket is not connected:
// - If it is still connecting, then we will get an initial resize from
// Python once it connects.
Expand Down Expand Up @@ -728,7 +718,3 @@ mpl.figure.prototype.toolbar_button_onclick = function (name) {
mpl.figure.prototype.toolbar_button_onmouseover = function (tooltip) {
this.message.textContent = tooltip;
};

///////////////// REMAINING CONTENT GENERATED BY embed_js.py /////////////////
// prettier-ignore
var _JSXTOOLS_RESIZE_OBSERVER=function(A){var t,i=new WeakMap,n=new WeakMap,a=new WeakMap,r=new WeakMap,o=new Set;function s(e){if(!(this instanceof s))throw new TypeError("Constructor requires 'new' operator");i.set(this,e)}function h(){throw new TypeError("Function is not a constructor")}function c(e,t,i,n){e=0 in arguments?Number(arguments[0]):0,t=1 in arguments?Number(arguments[1]):0,i=2 in arguments?Number(arguments[2]):0,n=3 in arguments?Number(arguments[3]):0,this.right=(this.x=this.left=e)+(this.width=i),this.bottom=(this.y=this.top=t)+(this.height=n),Object.freeze(this)}function d(){t=requestAnimationFrame(d);var s=new WeakMap,p=new Set;o.forEach((function(t){r.get(t).forEach((function(i){var r=t instanceof window.SVGElement,o=a.get(t),d=r?0:parseFloat(o.paddingTop),f=r?0:parseFloat(o.paddingRight),l=r?0:parseFloat(o.paddingBottom),u=r?0:parseFloat(o.paddingLeft),g=r?0:parseFloat(o.borderTopWidth),m=r?0:parseFloat(o.borderRightWidth),w=r?0:parseFloat(o.borderBottomWidth),b=u+f,F=d+l,v=(r?0:parseFloat(o.borderLeftWidth))+m,W=g+w,y=r?0:t.offsetHeight-W-t.clientHeight,E=r?0:t.offsetWidth-v-t.clientWidth,R=b+v,z=F+W,M=r?t.width:parseFloat(o.width)-R-E,O=r?t.height:parseFloat(o.height)-z-y;if(n.has(t)){var k=n.get(t);if(k[0]===M&&k[1]===O)return}n.set(t,[M,O]);var S=Object.create(h.prototype);S.target=t,S.contentRect=new c(u,d,M,O),s.has(i)||(s.set(i,[]),p.add(i)),s.get(i).push(S)}))})),p.forEach((function(e){i.get(e).call(e,s.get(e),e)}))}return s.prototype.observe=function(i){if(i instanceof window.Element){r.has(i)||(r.set(i,new Set),o.add(i),a.set(i,window.getComputedStyle(i)));var n=r.get(i);n.has(this)||n.add(this),cancelAnimationFrame(t),t=requestAnimationFrame(d)}},s.prototype.unobserve=function(i){if(i instanceof window.Element&&r.has(i)){var n=r.get(i);n.has(this)&&(n.delete(this),n.size||(r.delete(i),o.delete(i))),n.size||r.delete(i),o.size||cancelAnimationFrame(t)}},A.DOMRectReadOnly=c,A.ResizeObserver=s,A.ResizeObserverEntry=h,A}; // eslint-disable-line
3 changes: 0 additions & 3 deletions lib/matplotlib/backends/web_backend/package.json
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Expand Up @@ -11,8 +11,5 @@
"lint:check": "npm run prettier:check && npm run eslint:check",
"prettier": "prettier --write \"**/*{.ts,.tsx,.js,.jsx,.css,.json}\"",
"prettier:check": "prettier --check \"**/*{.ts,.tsx,.js,.jsx,.css,.json}\""
},
"dependencies": {
"@jsxtools/resize-observer": "^1.0.4"
}
}
2 changes: 0 additions & 2 deletions meson.build
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Expand Up @@ -6,7 +6,6 @@ project(
find_program('python3', 'python', version: '>= 3.11'),
'-m', 'setuptools_scm', check: true).stdout().strip(),
# qt_editor backend is MIT
# ResizeObserver at end of lib/matplotlib/backends/web_backend/js/mpl.js is CC0
# STIX, Computer Modern, and Last Resort are OFL
# DejaVu is Bitstream Vera and Public Domain
license: 'PSF-2.0 AND MIT AND CC0-1.0 AND OFL-1.1 AND Bitstream-Vera AND Public-Domain',
Expand All @@ -19,7 +18,6 @@ project(
'LICENSE/LICENSE_COURIERTEN',
'LICENSE/LICENSE_FREETYPE',
'LICENSE/LICENSE_HARFBUZZ',
'LICENSE/LICENSE_JSXTOOLS_RESIZE_OBSERVER',
'LICENSE/LICENSE_LAST_RESORT_FONT',
'LICENSE/LICENSE_LIBRAQM',
'LICENSE/LICENSE_QT4_EDITOR',
Expand Down
102 changes: 0 additions & 102 deletions tools/embed_js.py
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