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117 lines
13 KiB
117 lines
13 KiB
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import { Directive, EventEmitter, Input, Output, NgZone, InjectionToken, Inject, Optional, } from '@angular/core';
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import { Clipboard } from './clipboard';
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/** Injection token that can be used to provide the default options to `CdkCopyToClipboard`. */
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import * as ɵngcc0 from '@angular/core';
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import * as ɵngcc1 from './clipboard';
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export const CDK_COPY_TO_CLIPBOARD_CONFIG = new InjectionToken('CDK_COPY_TO_CLIPBOARD_CONFIG');
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/**
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* @deprecated Use `CDK_COPY_TO_CLIPBOARD_CONFIG` instead.
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* @breaking-change 13.0.0
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*/
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export const CKD_COPY_TO_CLIPBOARD_CONFIG = CDK_COPY_TO_CLIPBOARD_CONFIG;
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/**
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* Provides behavior for a button that when clicked copies content into user's
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* clipboard.
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*/
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export class CdkCopyToClipboard {
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constructor(_clipboard, _ngZone, config) {
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this._clipboard = _clipboard;
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this._ngZone = _ngZone;
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/** Content to be copied. */
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this.text = '';
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/**
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* How many times to attempt to copy the text. This may be necessary for longer text, because
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* the browser needs time to fill an intermediate textarea element and copy the content.
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*/
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this.attempts = 1;
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/**
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* Emits when some text is copied to the clipboard. The
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* emitted value indicates whether copying was successful.
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*/
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this.copied = new EventEmitter();
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/** Copies that are currently being attempted. */
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this._pending = new Set();
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if (config && config.attempts != null) {
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this.attempts = config.attempts;
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}
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}
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/** Copies the current text to the clipboard. */
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copy(attempts = this.attempts) {
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if (attempts > 1) {
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let remainingAttempts = attempts;
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const pending = this._clipboard.beginCopy(this.text);
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this._pending.add(pending);
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const attempt = () => {
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const successful = pending.copy();
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if (!successful && --remainingAttempts && !this._destroyed) {
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// We use 1 for the timeout since it's more predictable when flushing in unit tests.
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this._currentTimeout = this._ngZone.runOutsideAngular(() => setTimeout(attempt, 1));
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}
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else {
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this._currentTimeout = null;
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this._pending.delete(pending);
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pending.destroy();
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this.copied.emit(successful);
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}
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};
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attempt();
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}
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else {
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this.copied.emit(this._clipboard.copy(this.text));
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}
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}
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ngOnDestroy() {
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if (this._currentTimeout) {
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clearTimeout(this._currentTimeout);
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}
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this._pending.forEach(copy => copy.destroy());
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this._pending.clear();
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this._destroyed = true;
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}
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}
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CdkCopyToClipboard.ɵfac = function CdkCopyToClipboard_Factory(t) { return new (t || CdkCopyToClipboard)(ɵngcc0.ɵɵdirectiveInject(ɵngcc1.Clipboard), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(CKD_COPY_TO_CLIPBOARD_CONFIG, 8)); };
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CdkCopyToClipboard.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkCopyToClipboard, selectors: [["", "cdkCopyToClipboard", ""]], hostBindings: function CdkCopyToClipboard_HostBindings(rf, ctx) { if (rf & 1) {
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ɵngcc0.ɵɵlistener("click", function CdkCopyToClipboard_click_HostBindingHandler() { return ctx.copy(); });
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} }, inputs: { text: ["cdkCopyToClipboard", "text"], attempts: ["cdkCopyToClipboardAttempts", "attempts"] }, outputs: { copied: "cdkCopyToClipboardCopied" } });
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CdkCopyToClipboard.ctorParameters = () => [
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{ type: Clipboard },
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{ type: NgZone },
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{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CKD_COPY_TO_CLIPBOARD_CONFIG,] }] }
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];
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CdkCopyToClipboard.propDecorators = {
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text: [{ type: Input, args: ['cdkCopyToClipboard',] }],
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attempts: [{ type: Input, args: ['cdkCopyToClipboardAttempts',] }],
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copied: [{ type: Output, args: ['cdkCopyToClipboardCopied',] }]
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};
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(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkCopyToClipboard, [{
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type: Directive,
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args: [{
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selector: '[cdkCopyToClipboard]',
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host: {
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'(click)': 'copy()'
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}
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}]
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}], function () { return [{ type: ɵngcc1.Clipboard }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{
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type: Optional
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}, {
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type: Inject,
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args: [CKD_COPY_TO_CLIPBOARD_CONFIG]
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}] }]; }, { text: [{
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type: Input,
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args: ['cdkCopyToClipboard']
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}], attempts: [{
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type: Input,
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args: ['cdkCopyToClipboardAttempts']
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}], copied: [{
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type: Output,
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args: ['cdkCopyToClipboardCopied']
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}] }); })();
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This may be necessary for longer text, because\n   * the browser needs time to fill an intermediate textarea element and copy the content.\n   */\n  @Input('cdkCopyToClipboardAttempts') attempts: number = 1;\n\n  /**\n   * Emits when some text is copied to the clipboard. The\n   * emitted value indicates whether copying was successful.\n   */\n  @Output('cdkCopyToClipboardCopied') readonly copied = new EventEmitter<boolean>();\n\n  /** Copies that are currently being attempted. */\n  private _pending = new Set<PendingCopy>();\n\n  /** Whether the directive has been destroyed. */\n  private _destroyed: boolean;\n\n  /** Timeout for the current copy attempt. */\n  private _currentTimeout: any;\n\n  constructor(\n    private _clipboard: Clipboard,\n    private _ngZone: NgZone,\n    @Optional() @Inject(CKD_COPY_TO_CLIPBOARD_CONFIG) config?: CdkCopyToClipboardConfig) {\n\n    if (config && config.attempts != null) {\n      this.attempts = config.attempts;\n    }\n  }\n\n  /** Copies the current text to the clipboard. */\n  copy(attempts: number = this.attempts): void {\n    if (attempts > 1) {\n      let remainingAttempts = attempts;\n      const pending = this._clipboard.beginCopy(this.text);\n      this._pending.add(pending);\n\n      const attempt = () => {\n        const successful = pending.copy();\n        if (!successful && --remainingAttempts && !this._destroyed) {\n          // We use 1 for the timeout since it's more predictable when flushing in unit tests.\n          this._currentTimeout = this._ngZone.runOutsideAngular(() => setTimeout(attempt, 1));\n        } else {\n          this._currentTimeout = null;\n          this._pending.delete(pending);\n          pending.destroy();\n          this.copied.emit(successful);\n        }\n      };\n      attempt();\n    } else {\n      this.copied.emit(this._clipboard.copy(this.text));\n    }\n  }\n\n  ngOnDestroy() {\n    if (this._currentTimeout) {\n      clearTimeout(this._currentTimeout);\n    }\n\n    this._pending.forEach(copy => copy.destroy());\n    this._pending.clear();\n    this._destroyed = true;\n  }\n}\n"]}
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