Convert window.coffee and clipboard.coffee to javascript

src/clipboard.js

@@ -0,0 +1,70 @@
+/** @babel */
+
+import crypto from 'crypto'
+import clipboard from './safe-clipboard'
+
+// Extended: Represents the clipboard used for copying and pasting in Atom.
+//
+// An instance of this class is always available as the `atom.clipboard` global.
+//
+// ## Examples
+//
+// ```coffee
+// atom.clipboard.write('hello')
+//
+// console.log(atom.clipboard.read()) # 'hello'
+// ```
+export default class Clipboard {
+  constructor () {
+    this.reset()
+  }
+
+  reset () {
+    this.metadata = null
+    this.signatureForMetadata = null
+  }
+
+  // Creates an `md5` hash of some text.
+  //
+  // * `text` A {String} to hash.
+  //
+  // Returns a hashed {String}.
+  md5 (text) {
+    return crypto.createHash('md5').update(text, 'utf8').digest('hex')
+  }
+
+  // Public: Write the given text to the clipboard.
+  //
+  // The metadata associated with the text is available by calling
+  // {::readWithMetadata}.
+  //
+  // * `text` The {String} to store.
+  // * `metadata` (optional) The additional info to associate with the text.
+  write (text, metadata) {
+    this.signatureForMetadata = this.md5(text)
+    this.metadata = metadata
+    clipboard.writeText(text)
+  }
+
+  // Public: Read the text from the clipboard.
+  //
+  // Returns a {String}.
+  read () {
+    return clipboard.readText()
+  }
+
+  // Public: Read the text from the clipboard and return both the text and the
+  // associated metadata.
+  //
+  // Returns an {Object} with the following keys:
+  // * `text` The {String} clipboard text.
+  // * `metadata` The metadata stored by an earlier call to {::write}.
+  readWithMetadata () {
+    let text = this.read()
+    if (this.signatureForMetadata === this.md5(text)) {
+      return {text, metadata: this.metadata}
+    } else {
+      return {text}
+    }
+  }
+}