d1ea1f4c7f
Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
94 lines
3.1 KiB
TypeScript
94 lines
3.1 KiB
TypeScript
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
Zone.__load_patch('ResizeObserver', (global: any, Zone: any, api: _ZonePrivate) => {
|
|
const ResizeObserver = global['ResizeObserver'];
|
|
if (!ResizeObserver) {
|
|
return;
|
|
}
|
|
|
|
const resizeObserverSymbol = api.symbol('ResizeObserver');
|
|
|
|
api.patchMethod(global, 'ResizeObserver', (delegate: Function) => (self: any, args: any[]) => {
|
|
const callback = args.length > 0 ? args[0] : null;
|
|
if (callback) {
|
|
args[0] = function(entries: any, observer: any) {
|
|
const zones: {[zoneName: string]: any} = {};
|
|
const currZone = Zone.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: zone};
|
|
}
|
|
zoneEntriesInfo.entries.push(entry);
|
|
}
|
|
|
|
Object.keys(zones).forEach(zoneName => {
|
|
const zoneEntriesInfo = zones[zoneName];
|
|
if (zoneEntriesInfo.zone !== Zone.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: Function) => (self: any, args: any[]) => {
|
|
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] = Zone.current;
|
|
return delegate.apply(self, args);
|
|
});
|
|
|
|
api.patchMethod(
|
|
ResizeObserver.prototype, 'unobserve', (delegate: Function) => (self: any, args: any[]) => {
|
|
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] = undefined;
|
|
return delegate.apply(self, args);
|
|
});
|
|
|
|
api.patchMethod(
|
|
ResizeObserver.prototype, 'disconnect', (delegate: Function) => (self: any, args: any[]) => {
|
|
const targets = self[resizeObserverSymbol];
|
|
if (targets) {
|
|
targets.forEach((target: any) => {
|
|
target[resizeObserverSymbol] = undefined;
|
|
});
|
|
self[resizeObserverSymbol] = undefined;
|
|
}
|
|
return delegate.apply(self, args);
|
|
});
|
|
});
|