| [6a3a178] | 1 | /**
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| 2 | * @license
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| 3 | * Copyright Google LLC All Rights Reserved.
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| 4 | *
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| 5 | * Use of this source code is governed by an MIT-style license that can be
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| 6 | * found in the LICENSE file at https://angular.io/license
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| 7 | */
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| 8 | /**
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| 9 | * A repeater that destroys views when they are removed from a
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| 10 | * {@link ViewContainerRef}. When new items are inserted into the container,
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| 11 | * the repeater will always construct a new embedded view for each item.
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| 12 | *
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| 13 | * @template T The type for the embedded view's $implicit property.
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| 14 | * @template R The type for the item in each IterableDiffer change record.
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| 15 | * @template C The type for the context passed to each embedded view.
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| 16 | */
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| 17 | export class _DisposeViewRepeaterStrategy {
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| 18 | applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {
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| 19 | changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {
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| 20 | let view;
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| 21 | let operation;
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| 22 | if (record.previousIndex == null) {
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| 23 | const insertContext = itemContextFactory(record, adjustedPreviousIndex, currentIndex);
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| 24 | view = viewContainerRef.createEmbeddedView(insertContext.templateRef, insertContext.context, insertContext.index);
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| 25 | operation = 1 /* INSERTED */;
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| 26 | }
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| 27 | else if (currentIndex == null) {
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| 28 | viewContainerRef.remove(adjustedPreviousIndex);
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| 29 | operation = 3 /* REMOVED */;
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| 30 | }
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| 31 | else {
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| 32 | view = viewContainerRef.get(adjustedPreviousIndex);
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| 33 | viewContainerRef.move(view, currentIndex);
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| 34 | operation = 2 /* MOVED */;
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| 35 | }
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| 36 | if (itemViewChanged) {
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| 37 | itemViewChanged({
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| 38 | context: view === null || view === void 0 ? void 0 : view.context,
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| 39 | operation,
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| 40 | record,
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| 41 | });
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| 42 | }
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| 43 | });
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| 44 | }
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| 45 | detach() {
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| 46 | }
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| 47 | }
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| 48 | //# 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