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 | import { coerceBooleanProperty } from '@angular/cdk/coercion';
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9 | /**
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10 | * Mixin to provide a directive with a function that checks if the sticky input has been
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11 | * changed since the last time the function was called. Essentially adds a dirty-check to the
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12 | * sticky value.
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13 | * @docs-private
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14 | */
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15 | export function mixinHasStickyInput(base) {
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16 | return class extends base {
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17 | constructor(...args) {
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18 | super(...args);
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19 | this._sticky = false;
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20 | /** Whether the sticky input has changed since it was last checked. */
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21 | this._hasStickyChanged = false;
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22 | }
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23 | /** Whether sticky positioning should be applied. */
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24 | get sticky() {
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25 | return this._sticky;
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26 | }
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27 | set sticky(v) {
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28 | const prevValue = this._sticky;
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29 | this._sticky = coerceBooleanProperty(v);
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30 | this._hasStickyChanged = prevValue !== this._sticky;
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31 | }
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32 | /** Whether the sticky value has changed since this was last called. */
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33 | hasStickyChanged() {
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34 | const hasStickyChanged = this._hasStickyChanged;
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35 | this._hasStickyChanged = false;
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36 | return hasStickyChanged;
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37 | }
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38 | /** Resets the dirty check for cases where the sticky state has been used without checking. */
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39 | resetStickyChanged() {
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40 | this._hasStickyChanged = false;
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41 | }
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42 | };
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43 | }
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44 | //# sourceMappingURL=data:application/json;base64,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 |
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