| "sources": ["clipboard.ts"], |
| "sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n"], |
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