1 files changed, 171 insertions, 0 deletions
diff --git a/browser/components/downloads/test/browser/browser_downloads_panel_disable_items.js b/browser/components/downloads/test/browser/browser_downloads_panel_disable_items.js
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+++ b/browser/components/downloads/test/browser/browser_downloads_panel_disable_items.js
@@ -0,0 +1,171 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_URI = "https://example.com";
+const TEST_PATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  TEST_URI
+);
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["browser.download.alwaysOpenPanel", true],
+      ["browser.download.always_ask_before_handling_new_types", false],
+      ["security.dialog_enable_delay", 1000],
+    ],
+  });
+  // Remove download files from previous tests
+  await task_resetState();
+  let downloadList = await Downloads.getList(Downloads.ALL);
+  let downloadCount = (await downloadList.getAll()).length;
+  is(downloadCount, 0, "At the start of the test, there should be 0 downloads");
+});
+
+/**
+ * Tests that the download items remain enabled when we manually open
+ * the downloads panel by clicking the downloads button.
+ */
+add_task(async function test_downloads_panel_downloads_button() {
+  let panelOpenedPromise = promisePanelOpened();
+  await task_addDownloads([{ state: DownloadsCommon.DOWNLOAD_FINISHED }]);
+  await panelOpenedPromise;
+
+  // The downloads panel will open automatically after task_addDownloads
+  // creates a download file. Let's close the panel and reopen it again
+  // (but this time manually) to ensure the download items are not disabled.
+  DownloadsPanel.hidePanel();
+
+  ok(!DownloadsPanel.isPanelShowing, "Downloads Panel should not be visible");
+
+  info("Manually open the download panel to view list of downloads");
+  let downloadsButton = document.getElementById("downloads-button");
+  EventUtils.synthesizeMouseAtCenter(downloadsButton, {});
+  let downloadsListBox = document.getElementById("downloadsListBox");
+
+  ok(downloadsListBox, "downloadsListBox richlistitem should be visible");
+  is(
+    downloadsListBox.childElementCount,
+    1,
+    "downloadsListBox should have 1 download"
+  );
+  ok(
+    !downloadsListBox.getAttribute("disabled"),
+    "All download items in the downloads panel should not be disabled"
+  );
+
+  info("Cleaning up downloads");
+  await task_resetState();
+});
+
+/**
+ * Tests that the download items are disabled when the downloads panel is
+ * automatically opened as a result of a new download.
+ */
+add_task(async function test_downloads_panel_new_download() {
+  // Overwrite DownloadsCommon.openDownload to prevent file from opening during tests
+  const originalOpenDownload = DownloadsCommon.openDownload;
+  DownloadsCommon.openDownload = async () => {
+    ok(false, "openDownload was called when it was not expected");
+  };
+  let newTabPromise = BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    opening: TEST_PATH + "foo.txt",
+    waitForLoad: false,
+    waitForStateStop: true,
+  });
+
+  await promisePanelOpened();
+  let downloadsListBox = document.getElementById("downloadsListBox");
+
+  ok(downloadsListBox, "downloadsListBox richlistitem should be visible");
+  await BrowserTestUtils.waitForMutationCondition(
+    downloadsListBox,
+    { childList: true },
+    () => downloadsListBox.childElementCount == 1
+  );
+  info("downloadsListBox should have 1 download");
+  ok(
+    downloadsListBox.getAttribute("disabled"),
+    "All download items in the downloads panel should first be disabled"
+  );
+
+  let newTab = await newTabPromise;
+
+  // Press enter 6 times at 100ms intervals.
+  EventUtils.synthesizeKey("KEY_Enter", {}, window);
+  for (let i = 0; i < 5; i++) {
+    // There's no other way to allow some time to pass and ensure we're
+    // genuinely testing that these keypresses postpone the enabling of
+    // the items, so disable this check for this line:
+    // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+    await new Promise(r => setTimeout(r, 100));
+    EventUtils.synthesizeKey("KEY_Enter", {}, window);
+  }
+  // Measure when we finished.
+  let keyTime = Date.now();
+
+  await BrowserTestUtils.waitForMutationCondition(
+    downloadsListBox,
+    { attributeFilter: ["disabled"] },
+    () => !downloadsListBox.hasAttribute("disabled")
+  );
+  Assert.greater(
+    Date.now(),
+    keyTime + 750,
+    "Should have waited at least another 750ms after this keypress."
+  );
+  let openedDownload = new Promise(resolve => {
+    DownloadsCommon.openDownload = async () => {
+      ok(true, "openDownload should have been called");
+      resolve();
+    };
+  });
+
+  info("All download items in the download panel should now be enabled");
+  EventUtils.synthesizeKey("KEY_Enter", {}, window);
+  await openedDownload;
+
+  await task_resetState();
+  DownloadsCommon.openDownload = originalOpenDownload;
+  BrowserTestUtils.removeTab(newTab);
+});
+
+/**
+ * Tests that the disabled attribute does not exist when we close the
+ * downloads panel before the disabled state timeout resolves.
+ */
+add_task(async function test_downloads_panel_close_panel_early() {
+  info("Creating mock completed downloads");
+  await task_addDownloads([{ state: DownloadsCommon.DOWNLOAD_FINISHED }]);
+
+  // The downloads panel may open automatically after task_addDownloads
+  // creates a download file. Let's close the panel and reopen it again
+  // (but this time manually).
+  DownloadsPanel.hidePanel();
+
+  ok(!DownloadsPanel.isPanelShowing, "Downloads Panel should not be visible");
+
+  info("Manually open the download panel to view list of downloads");
+  let downloadsButton = document.getElementById("downloads-button");
+  EventUtils.synthesizeMouseAtCenter(downloadsButton, {});
+  let downloadsListBox = document.getElementById("downloadsListBox");
+
+  ok(downloadsListBox, "downloadsListBox richlistitem should be visible");
+  is(
+    downloadsListBox.childElementCount,
+    1,
+    "downloadsListBox should have 1 download"
+  );
+
+  DownloadsPanel.hidePanel();
+  await BrowserTestUtils.waitForCondition(
+    () => !downloadsListBox.getAttribute("disabled")
+  );
+  info("downloadsListBox 'disabled' attribute should not exist");
+
+  info("Cleaning up downloads");
+  await task_resetState();
+});