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'use strict';
/**
* @license Angular
* (c) 2010-2025 Google LLC. https://angular.dev/
* License: MIT
*/
// packages/zone.js/lib/browser/webapis-resize-observer.js
function patchResizeObserver(Zone2) {
Zone2.__load_patch("ResizeObserver", (global, Zone3, api) => {
const ResizeObserver = global["ResizeObserver"];
if (!ResizeObserver) {
return;
}
const resizeObserverSymbol = api.symbol("ResizeObserver");
api.patchMethod(global, "ResizeObserver", (delegate) => (self, args) => {
const callback = args.length > 0 ? args[0] : null;
if (callback) {
args[0] = function(entries, observer) {
const zones = {};
const currZone = Zone3.current;
for (let entry of entries) {
let zone = entry.target[resizeObserverSymbol];
if (!zone) {
zone = currZone;
}
let zoneEntriesInfo = zones[zone.name];
if (!zoneEntriesInfo) {
zones[zone.name] = zoneEntriesInfo = { entries: [], zone };
}
zoneEntriesInfo.entries.push(entry);
}
Object.keys(zones).forEach((zoneName) => {
const zoneEntriesInfo = zones[zoneName];
if (zoneEntriesInfo.zone !== Zone3.current) {
zoneEntriesInfo.zone.run(callback, this, [zoneEntriesInfo.entries, observer], "ResizeObserver");
} else {
callback.call(this, zoneEntriesInfo.entries, observer);
}
});
};
}
return args.length > 0 ? new ResizeObserver(args[0]) : new ResizeObserver();
});
api.patchMethod(ResizeObserver.prototype, "observe", (delegate) => (self, args) => {
const target = args.length > 0 ? args[0] : null;
if (!target) {
return delegate.apply(self, args);
}
let targets = self[resizeObserverSymbol];
if (!targets) {
targets = self[resizeObserverSymbol] = [];
}
targets.push(target);
target[resizeObserverSymbol] = Zone3.current;
return delegate.apply(self, args);
});
api.patchMethod(ResizeObserver.prototype, "unobserve", (delegate) => (self, args) => {
const target = args.length > 0 ? args[0] : null;
if (!target) {
return delegate.apply(self, args);
}
let targets = self[resizeObserverSymbol];
if (targets) {
for (let i = 0; i < targets.length; i++) {
if (targets[i] === target) {
targets.splice(i, 1);
break;
}
}
}
target[resizeObserverSymbol] = void 0;
return delegate.apply(self, args);
});
api.patchMethod(ResizeObserver.prototype, "disconnect", (delegate) => (self, args) => {
const targets = self[resizeObserverSymbol];
if (targets) {
targets.forEach((target) => {
target[resizeObserverSymbol] = void 0;
});
self[resizeObserverSymbol] = void 0;
}
return delegate.apply(self, args);
});
});
}
// packages/zone.js/lib/browser/rollup-webapis-resize-observer.js
patchResizeObserver(Zone);