@angular/cdk
Version:
Angular Material Component Development Kit
114 lines • 13.4 kB
JavaScript
/**
* @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
*/
import { Directive, EventEmitter, Input, Output, NgZone, InjectionToken, Inject, Optional, } from '@angular/core';
import { Clipboard } from './clipboard';
/** Injection token that can be used to provide the default options to `CdkCopyToClipboard`. */
export var CKD_COPY_TO_CLIPBOARD_CONFIG = new InjectionToken('CKD_COPY_TO_CLIPBOARD_CONFIG');
/**
* Provides behavior for a button that when clicked copies content into user's
* clipboard.
*/
var CdkCopyToClipboard = /** @class */ (function () {
function CdkCopyToClipboard(_clipboard,
/**
* @deprecated _ngZone parameter to become required.
* @breaking-change 10.0.0
*/
_ngZone, config) {
this._clipboard = _clipboard;
this._ngZone = _ngZone;
/** Content to be copied. */
this.text = '';
/**
* How many times to attempt to copy the text. This may be necessary for longer text, because
* the browser needs time to fill an intermediate textarea element and copy the content.
*/
this.attempts = 1;
/**
* Emits when some text is copied to the clipboard. The
* emitted value indicates whether copying was successful.
*/
this.copied = new EventEmitter();
/**
* Emits when some text is copied to the clipboard. The
* emitted value indicates whether copying was successful.
* @deprecated Use `cdkCopyToClipboardCopied` instead.
* @breaking-change 10.0.0
*/
this._deprecatedCopied = this.copied;
/** Copies that are currently being attempted. */
this._pending = new Set();
if (config && config.attempts != null) {
this.attempts = config.attempts;
}
}
/** Copies the current text to the clipboard. */
CdkCopyToClipboard.prototype.copy = function (attempts) {
var _this = this;
if (attempts === void 0) { attempts = this.attempts; }
if (attempts > 1) {
var remainingAttempts_1 = attempts;
var pending_1 = this._clipboard.beginCopy(this.text);
this._pending.add(pending_1);
var attempt_1 = function () {
var successful = pending_1.copy();
if (!successful && --remainingAttempts_1 && !_this._destroyed) {
// @breaking-change 10.0.0 Remove null check for `_ngZone`.
if (_this._ngZone) {
_this._currentTimeout = _this._ngZone.runOutsideAngular(function () { return setTimeout(attempt_1, 1); });
}
else {
// We use 1 for the timeout since it's more predictable when flushing in unit tests.
_this._currentTimeout = setTimeout(attempt_1, 1);
}
}
else {
_this._currentTimeout = null;
_this._pending.delete(pending_1);
pending_1.destroy();
_this.copied.emit(successful);
}
};
attempt_1();
}
else {
this.copied.emit(this._clipboard.copy(this.text));
}
};
CdkCopyToClipboard.prototype.ngOnDestroy = function () {
if (this._currentTimeout) {
clearTimeout(this._currentTimeout);
}
this._pending.forEach(function (copy) { return copy.destroy(); });
this._pending.clear();
this._destroyed = true;
};
CdkCopyToClipboard.decorators = [
{ type: Directive, args: [{
selector: '[cdkCopyToClipboard]',
host: {
'(click)': 'copy()',
}
},] }
];
/** @nocollapse */
CdkCopyToClipboard.ctorParameters = function () { return [
{ type: Clipboard },
{ type: NgZone },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CKD_COPY_TO_CLIPBOARD_CONFIG,] }] }
]; };
CdkCopyToClipboard.propDecorators = {
text: [{ type: Input, args: ['cdkCopyToClipboard',] }],
attempts: [{ type: Input, args: ['cdkCopyToClipboardAttempts',] }],
copied: [{ type: Output, args: ['cdkCopyToClipboardCopied',] }],
_deprecatedCopied: [{ type: Output, args: ['copied',] }]
};
return CdkCopyToClipboard;
}());
export { CdkCopyToClipboard };
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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') copied = new EventEmitter<boolean>();\n\n  /**\n   * Emits when some text is copied to the clipboard. The\n   * emitted value indicates whether copying was successful.\n   * @deprecated Use `cdkCopyToClipboardCopied` instead.\n   * @breaking-change 10.0.0\n   */\n  @Output('copied') _deprecatedCopied = this.copied;\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    /**\n     * @deprecated _ngZone parameter to become required.\n     * @breaking-change 10.0.0\n     */\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          // @breaking-change 10.0.0 Remove null check for `_ngZone`.\n          if (this._ngZone) {\n            this._currentTimeout = this._ngZone.runOutsideAngular(() => setTimeout(attempt, 1));\n          } else {\n            // We use 1 for the timeout since it's more predictable when flushing in unit tests.\n            this._currentTimeout = setTimeout(attempt, 1);\n          }\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"]}