/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that the global Firefox "Select All" functionality (e.g. Edit >
// Select All) works properly in the Web Console.

/* import-globals-from head.js */

const TEST_URI = "http://example.com/";

add_task(async function testSelectAll() {
  const hud = await openNewTabAndConsole(TEST_URI);
  await testSelectionWhenMovingBetweenBoxes(hud);
  testBrowserMenuSelectAll(hud);
});

async function testSelectionWhenMovingBetweenBoxes(hud) {
  // Fill the console with some output.
  await clearOutput(hud);
  await executeAndWaitForResultMessage(hud, "1 + 2", "3");
  await executeAndWaitForResultMessage(hud, "3 + 4", "7");
  await executeAndWaitForResultMessage(hud, "5 + 6", "11");
}

function testBrowserMenuSelectAll(hud) {
  const { ui } = hud;
  const outputContainer = ui.outputNode.querySelector(".webconsole-output");

  is(
    outputContainer.querySelectorAll(".message").length,
    6,
    "the output node contains the expected number of messages"
  );

  // The focus is on the JsTerm, so we need to blur it for the copy comand to
  // work.
  outputContainer.ownerDocument.activeElement.blur();

  // Test that the global Firefox "Select All" functionality (e.g. Edit >
  // Select All) works properly in the Web Console.
  goDoCommand("cmd_selectAll");

  checkMessagesSelected(outputContainer);
  hud.iframeWindow.getSelection().removeAllRanges();
}

function checkMessagesSelected(outputContainer) {
  const selection = outputContainer.ownerDocument.getSelection();
  const messages = outputContainer.querySelectorAll(".message");

  for (const message of messages) {
    // Oddly, something about the top and bottom buffer having user-select be
    // 'none' means that the messages themselves don't register as selected.
    // However, all of their children will count as selected, which should be
    // good enough for our purposes.
    const selected = [...message.children].every(c =>
      selection.containsNode(c)
    );
    ok(selected, `Node containing text "${message.textContent}" was selected`);
  }
}
