1 files changed, 106 insertions, 0 deletions
diff --git a/dom/events/test/browser_beforeinput_by_execCommand_in_contentscript.js b/dom/events/test/browser_beforeinput_by_execCommand_in_contentscript.js
new file mode 100644
index 0000000000..d995e6f4d4
--- /dev/null
+++ b/dom/events/test/browser_beforeinput_by_execCommand_in_contentscript.js
@@ -0,0 +1,106 @@
+"use strict";
+
+async function installAndStartExtension() {
+  function contentScript() {
+    window.addEventListener("keydown", aEvent => {
+      console.log("keydown event is fired");
+      if (aEvent.defaultPrevented) {
+        return;
+      }
+      let selection = window.getSelection();
+      if (selection.isCollapsed) {
+        return;
+      }
+      if (aEvent.ctrlKey && aEvent.key === "k") {
+        document.execCommand("createLink", false, "http://example.com/");
+        aEvent.preventDefault();
+      }
+    });
+  }
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      content_scripts: [
+        {
+          js: ["content_script.js"],
+          matches: ["<all_urls>"],
+          run_at: "document_start",
+        },
+      ],
+    },
+    files: {
+      "content_script.js": contentScript,
+    },
+  });
+
+  await extension.startup();
+
+  return extension;
+}
+
+add_task(async function () {
+  const extension = await installAndStartExtension();
+  const tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "http://example.com/browser/dom/events/test/file_beforeinput_by_execCommand_in_contentscript.html",
+    true
+  );
+
+  function runTest() {
+    var editor = content.document.querySelector("[contenteditable]");
+    editor.focus();
+    content.document.getSelection().selectAllChildren(editor);
+    var beforeinput;
+    editor.addEventListener("beforeinput", aEvent => {
+      beforeinput = aEvent;
+    });
+    editor.addEventListener("input", aEvent => {
+      if (!beforeinput) {
+        sendAsyncMessage("Test:BeforeInputInContentEditable", {
+          succeeded: false,
+          message: "No beforeinput event is fired",
+        });
+        return;
+      }
+      sendAsyncMessage("Test:BeforeInputInContentEditable", {
+        succeeded:
+          editor.innerHTML === '<a href="http://example.com/">abcdef</a>',
+        message: `editor.innerHTML=${editor.innerHTML}`,
+      });
+    });
+  }
+
+  try {
+    tab.linkedBrowser.messageManager.loadFrameScript(
+      "data:,(" + runTest.toString() + ")();",
+      false
+    );
+
+    let received = false;
+    let testResult = new Promise(resolve => {
+      let mm = tab.linkedBrowser.messageManager;
+      mm.addMessageListener(
+        "Test:BeforeInputInContentEditable",
+        function onFinish(aMsg) {
+          mm.removeMessageListener(
+            "Test:BeforeInputInContentEditable",
+            onFinish
+          );
+          is(aMsg.data.succeeded, true, aMsg.data.message);
+          resolve();
+        }
+      );
+    });
+    info("Sending Ctrl+K...");
+    await BrowserTestUtils.synthesizeKey(
+      "k",
+      { ctrlKey: true },
+      tab.linkedBrowser
+    );
+    info("Waiting test result...");
+    await testResult;
+  } finally {
+    BrowserTestUtils.removeTab(tab);
+    await extension.unload();
+  }
+});