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path: root/browser/base/content/test/general/browser_bug1297539.js
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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* 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 for Bug 1297539
 * Test that the content event "pasteTransferable"
 * (mozilla::EventMessage::eContentCommandPasteTransferable)
 * is handled correctly for plain text and html in the remote case.
 *
 * Original test test_bug525389.html for command content event
 * "pasteTransferable" runs only in the content process.
 * This doesn't test the remote case.
 *
 */

"use strict";

function getLoadContext() {
  return window.docShell.QueryInterface(Ci.nsILoadContext);
}

function getTransferableFromClipboard(asHTML) {
  let trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
    Ci.nsITransferable
  );
  trans.init(getLoadContext());
  if (asHTML) {
    trans.addDataFlavor("text/html");
  } else {
    trans.addDataFlavor("text/plain");
  }
  Services.clipboard.getData(
    trans,
    Ci.nsIClipboard.kGlobalClipboard,
    SpecialPowers.wrap(window).browsingContext.currentWindowContext
  );
  return trans;
}

async function cutCurrentSelection(elementQueryString, property, browser) {
  // Cut the current selection.
  await BrowserTestUtils.synthesizeKey("x", { accelKey: true }, browser);

  // The editor should be empty after cut.
  await SpecialPowers.spawn(
    browser,
    [[elementQueryString, property]],
    async function ([contentElementQueryString, contentProperty]) {
      let element = content.document.querySelector(contentElementQueryString);
      is(
        element[contentProperty],
        "",
        `${contentElementQueryString} should be empty after cut (superkey + x)`
      );
    }
  );
}

// Test that you are able to pasteTransferable for plain text
// which is handled by TextEditor::PasteTransferable to paste into the editor.
add_task(async function test_paste_transferable_plain_text() {
  let testPage =
    "data:text/html," +
    '<textarea id="textarea">Write something here</textarea>';

  await BrowserTestUtils.withNewTab(testPage, async function (browser) {
    // Select all the content in your editor element.
    await BrowserTestUtils.synthesizeMouse("#textarea", 0, 0, {}, browser);
    await BrowserTestUtils.synthesizeKey("a", { accelKey: true }, browser);

    await cutCurrentSelection("#textarea", "value", browser);

    let trans = getTransferableFromClipboard(false);
    let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
    DOMWindowUtils.sendContentCommandEvent("pasteTransferable", trans);

    await SpecialPowers.spawn(browser, [], async function () {
      let textArea = content.document.querySelector("#textarea");
      is(
        textArea.value,
        "Write something here",
        "Send content command pasteTransferable successful"
      );
    });
  });
});

// Test that you are able to pasteTransferable for html
// which is handled by HTMLEditor::PasteTransferable to paste into the editor.
//
// On Linux,
// BrowserTestUtils.synthesizeKey("a", {accelKey: true}, browser);
// doesn't seem to trigger for contenteditable which is why we use
// Selection to select the contenteditable contents.
add_task(async function test_paste_transferable_html() {
  let testPage =
    "data:text/html," +
    '<div contenteditable="true"><b>Bold Text</b><i>italics</i></div>';

  await BrowserTestUtils.withNewTab(testPage, async function (browser) {
    // Select all the content in your editor element.
    await BrowserTestUtils.synthesizeMouse("div", 0, 0, {}, browser);
    await SpecialPowers.spawn(browser, [], async function () {
      let element = content.document.querySelector("div");
      let selection = content.window.getSelection();
      selection.selectAllChildren(element);
    });

    await cutCurrentSelection("div", "textContent", browser);

    let trans = getTransferableFromClipboard(true);
    let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
    DOMWindowUtils.sendContentCommandEvent("pasteTransferable", trans);

    await SpecialPowers.spawn(browser, [], async function () {
      let textArea = content.document.querySelector("div");
      is(
        textArea.innerHTML,
        "<b>Bold Text</b><i>italics</i>",
        "Send content command pasteTransferable successful"
      );
    });
  });
});