1 files changed, 133 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_clipboard_pastefile.js b/browser/base/content/test/general/browser_clipboard_pastefile.js
new file mode 100644
index 0000000000..f034883ef2
--- /dev/null
+++ b/browser/base/content/test/general/browser_clipboard_pastefile.js
@@ -0,0 +1,133 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Test that (real) files can be pasted into chrome/content.
+// Pasting files should also hide all other data from content.
+
+function setClipboard(path) {
+  const file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+  file.initWithPath(path);
+
+  const trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
+    Ci.nsITransferable
+  );
+  trans.init(null);
+  trans.addDataFlavor("application/x-moz-file");
+  trans.setTransferData("application/x-moz-file", file);
+
+  trans.addDataFlavor("text/plain");
+  const str = Cc["@mozilla.org/supports-string;1"].createInstance(
+    Ci.nsISupportsString
+  );
+  str.data = "Alternate";
+  trans.setTransferData("text/plain", str);
+
+  // Write to clipboard.
+  Services.clipboard.setData(trans, null, Ci.nsIClipboard.kGlobalClipboard);
+}
+
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [["dom.events.dataTransfer.mozFile.enabled", true]],
+  });
+
+  // Create a temporary file that will be pasted.
+  const file = await IOUtils.createUniqueFile(
+    PathUtils.tempDir,
+    "test-file.txt",
+    0o600
+  );
+  await IOUtils.writeUTF8(file, "Hello World!");
+
+  // Put the data directly onto the native clipboard to make sure
+  // it isn't handled internally in Gecko somehow.
+  setClipboard(file);
+
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "https://example.com/browser/browser/base/content/test/general/clipboard_pastefile.html"
+  );
+  let browser = tab.linkedBrowser;
+
+  let resultPromise = SpecialPowers.spawn(browser, [], function (arg) {
+    return new Promise(resolve => {
+      content.document.addEventListener("testresult", event => {
+        resolve(event.detail.result);
+      });
+    });
+  });
+
+  // Focus <input> in content
+  await SpecialPowers.spawn(browser, [], async function () {
+    content.document.getElementById("input").focus();
+  });
+
+  // Paste file into <input> in content
+  await BrowserTestUtils.synthesizeKey("v", { accelKey: true }, browser);
+
+  let result = await resultPromise;
+  is(result, PathUtils.filename(file), "Correctly pasted file in content");
+
+  var input = document.createElement("input");
+  document.documentElement.appendChild(input);
+  input.focus();
+
+  await new Promise((resolve, reject) => {
+    input.addEventListener(
+      "paste",
+      function (event) {
+        let dt = event.clipboardData;
+        is(dt.types.length, 3, "number of types");
+        ok(dt.types.includes("text/plain"), "text/plain exists in types");
+        ok(
+          dt.types.includes("application/x-moz-file"),
+          "application/x-moz-file exists in types"
+        );
+        is(dt.types[2], "Files", "Last type should be 'Files'");
+        ok(
+          dt.mozTypesAt(0).contains("text/plain"),
+          "text/plain exists in mozTypesAt"
+        );
+        is(
+          dt.getData("text/plain"),
+          "Alternate",
+          "text/plain returned in getData"
+        );
+        is(
+          dt.mozGetDataAt("text/plain", 0),
+          "Alternate",
+          "text/plain returned in mozGetDataAt"
+        );
+
+        ok(
+          dt.mozTypesAt(0).contains("application/x-moz-file"),
+          "application/x-moz-file exists in mozTypesAt"
+        );
+        let mozFile = dt.mozGetDataAt("application/x-moz-file", 0);
+
+        ok(
+          mozFile instanceof Ci.nsIFile,
+          "application/x-moz-file returned nsIFile with mozGetDataAt"
+        );
+
+        is(
+          mozFile.leafName,
+          PathUtils.filename(file),
+          "nsIFile has correct leafName"
+        );
+
+        resolve();
+      },
+      { capture: true, once: true }
+    );
+
+    EventUtils.synthesizeKey("v", { accelKey: true });
+  });
+
+  input.remove();
+
+  BrowserTestUtils.removeTab(tab);
+
+  await IOUtils.remove(file);
+});