[js] html externs - enable clipboard API, closes #8597

std/js/html/Clipboard.hx

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C)2005-2019 Haxe Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+// This file is generated from mozilla\Clipboard.webidl. Do not edit!
+
+package js.html;
+
+import js.lib.Promise;
+
+/**
+	The `Clipboard` interface implements the Clipboard API, providing—if the user grants permission—both read and write access to the contents of the system clipboard.
+
+	Documentation [Clipboard](https://developer.mozilla.org/en-US/docs/Web/API/Clipboard) by [Mozilla Contributors](https://developer.mozilla.org/en-US/docs/Web/API/Clipboard$history), licensed under [CC-BY-SA 2.5](https://creativecommons.org/licenses/by-sa/2.5/).
+
+	@see <https://developer.mozilla.org/en-US/docs/Web/API/Clipboard>
+**/
+@:native("Clipboard")
+extern class Clipboard extends EventTarget {
+	
+	/**
+		Requests arbitrary data (such as images) from the clipboard, returning a `Promise`. When the data has been retrieved, the promise is resolved with a `DataTransfer` object that provides the data.
+		@throws DOMError
+	**/
+	function read() : Promise<DataTransfer>;
+	
+	/**
+		Requests text from the system clipboard; returns a `Promise` which is resolved with a `DOMString` containing the clipboard's text once it's available.
+		@throws DOMError
+	**/
+	function readText() : Promise<String>;
+	
+	/**
+		Writes arbitrary data to the system clipboard. This asynchronous operation signals that it's finished by resolving the returned `Promise`.
+		@throws DOMError
+	**/
+	function write( data : DataTransfer ) : Promise<Void>;
+	
+	/**
+		Writes text to the system clipboard, returning a `Promise` which is resolved once the text is fully copied into the clipboard.
+		@throws DOMError
+	**/
+	function writeText( data : String ) : Promise<Void>;
+}

std/js/html/Navigator.hx

@@ -88,6 +88,7 @@ extern class Navigator {
 		Returns a `ServiceWorkerContainer` object, which provides access to registration, removal, upgrade, and communication with the `ServiceWorker` objects for the associated document.
 	**/
 	var serviceWorker(default,null) : ServiceWorkerContainer;
+	var clipboard(default,null) : Clipboard;
 	var hardwareConcurrency(default,null) : Int;
 
 	/**