1 files changed, 156 insertions, 0 deletions
diff --git a/browser/base/content/test/tabs/browser_paste_event_at_middle_click_on_link.js b/browser/base/content/test/tabs/browser_paste_event_at_middle_click_on_link.js
new file mode 100644
index 0000000000..a6b7f96410
--- /dev/null
+++ b/browser/base/content/test/tabs/browser_paste_event_at_middle_click_on_link.js
@@ -0,0 +1,156 @@
+"use strict";
+
+add_task(async function doCheckPasteEventAtMiddleClickOnAnchorElement() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["browser.tabs.opentabfor.middleclick", true],
+      ["middlemouse.paste", true],
+      ["middlemouse.contentLoadURL", false],
+      ["general.autoScroll", false],
+    ],
+  });
+
+  await new Promise((resolve, reject) => {
+    SimpleTest.waitForClipboard(
+      "Text in the clipboard",
+      () => {
+        Cc["@mozilla.org/widget/clipboardhelper;1"]
+          .getService(Ci.nsIClipboardHelper)
+          .copyString("Text in the clipboard");
+      },
+      resolve,
+      () => {
+        ok(false, "Clipboard copy failed");
+        reject();
+      }
+    );
+  });
+
+  is(
+    gBrowser.tabs.length,
+    1,
+    "Number of tabs should be 1 at starting this test #1"
+  );
+
+  let pageURL = getRootDirectory(gTestPath).replace(
+    "chrome://mochitests/content",
+    "https://example.com"
+  );
+  pageURL = `${pageURL}file_anchor_elements.html`;
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, pageURL);
+
+  let pasteEventCount = 0;
+  BrowserTestUtils.addContentEventListener(
+    gBrowser.selectedBrowser,
+    "paste",
+    () => {
+      ++pasteEventCount;
+    }
+  );
+
+  // Click the usual link.
+  ok(true, "Clicking on usual link...");
+  let newTabPromise = BrowserTestUtils.waitForNewTab(
+    gBrowser,
+    "https://example.com/#a_with_href",
+    true
+  );
+  await BrowserTestUtils.synthesizeMouseAtCenter(
+    "#a_with_href",
+    { button: 1 },
+    gBrowser.selectedBrowser
+  );
+  let openTabForUsualLink = await newTabPromise;
+  is(
+    openTabForUsualLink.linkedBrowser.currentURI.spec,
+    "https://example.com/#a_with_href",
+    "Middle click should open site to correct url at clicking on usual link"
+  );
+  is(
+    pasteEventCount,
+    0,
+    "paste event should be suppressed when clicking on usual link"
+  );
+
+  // Click the link in editing host.
+  is(
+    gBrowser.tabs.length,
+    3,
+    "Number of tabs should be 3 at starting this test #2"
+  );
+  ok(true, "Clicking on editable link...");
+  await BrowserTestUtils.synthesizeMouseAtCenter(
+    "#editable_a_with_href",
+    { button: 1 },
+    gBrowser.selectedBrowser
+  );
+  await TestUtils.waitForCondition(
+    () => pasteEventCount >= 1,
+    "Waiting for paste event caused by clicking on editable link"
+  );
+  is(
+    pasteEventCount,
+    1,
+    "paste event should be suppressed when clicking on editable link"
+  );
+  is(
+    gBrowser.tabs.length,
+    3,
+    "Clicking on editable link shouldn't open new tab"
+  );
+
+  // Click the link in non-editable area in editing host.
+  ok(true, "Clicking on non-editable link in an editing host...");
+  newTabPromise = BrowserTestUtils.waitForNewTab(
+    gBrowser,
+    "https://example.com/#non-editable_a_with_href",
+    true
+  );
+  await BrowserTestUtils.synthesizeMouseAtCenter(
+    "#non-editable_a_with_href",
+    { button: 1 },
+    gBrowser.selectedBrowser
+  );
+  let openTabForNonEditableLink = await newTabPromise;
+  is(
+    openTabForNonEditableLink.linkedBrowser.currentURI.spec,
+    "https://example.com/#non-editable_a_with_href",
+    "Middle click should open site to correct url at clicking on non-editable link in an editing host."
+  );
+  is(
+    pasteEventCount,
+    1,
+    "paste event should be suppressed when clicking on non-editable link in an editing host"
+  );
+
+  // Click the <a> element without href attribute.
+  is(
+    gBrowser.tabs.length,
+    4,
+    "Number of tabs should be 4 at starting this test #3"
+  );
+  ok(true, "Clicking on anchor element without href...");
+  await BrowserTestUtils.synthesizeMouseAtCenter(
+    "#a_with_name",
+    { button: 1 },
+    gBrowser.selectedBrowser
+  );
+  await TestUtils.waitForCondition(
+    () => pasteEventCount >= 2,
+    "Waiting for paste event caused by clicking on anchor element without href"
+  );
+  is(
+    pasteEventCount,
+    2,
+    "paste event should be suppressed when clicking on anchor element without href"
+  );
+  is(
+    gBrowser.tabs.length,
+    4,
+    "Clicking on anchor element without href shouldn't open new tab"
+  );
+
+  BrowserTestUtils.removeTab(tab);
+  BrowserTestUtils.removeTab(openTabForUsualLink);
+  BrowserTestUtils.removeTab(openTabForNonEditableLink);
+});