1 files changed, 117 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_homeDrop.js b/browser/base/content/test/general/browser_homeDrop.js
new file mode 100644
index 0000000000..81dc48d3e4
--- /dev/null
+++ b/browser/base/content/test/general/browser_homeDrop.js
@@ -0,0 +1,117 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function setupHomeButton() {
+  // Put the home button in the pre-proton placement to test focus states.
+  CustomizableUI.addWidgetToArea(
+    "home-button",
+    "nav-bar",
+    CustomizableUI.getPlacementOfWidget("stop-reload-button").position + 1
+  );
+  CustomizableUI.addWidgetToArea("sidebar-button", "nav-bar");
+  registerCleanupFunction(async function resetToolbar() {
+    await CustomizableUI.reset();
+  });
+});
+
+add_task(async function () {
+  let HOMEPAGE_PREF = "browser.startup.homepage";
+
+  await pushPrefs([HOMEPAGE_PREF, "about:mozilla"]);
+
+  let EventUtils = {};
+  Services.scriptloader.loadSubScript(
+    "chrome://mochikit/content/tests/SimpleTest/EventUtils.js",
+    EventUtils
+  );
+
+  // Since synthesizeDrop triggers the srcElement, need to use another button
+  // that should be visible.
+  let dragSrcElement = document.getElementById("sidebar-button");
+  ok(dragSrcElement, "Sidebar button exists");
+  let homeButton = document.getElementById("home-button");
+  ok(homeButton, "home button present");
+
+  async function drop(dragData, homepage) {
+    let setHomepageDialogPromise =
+      BrowserTestUtils.promiseAlertDialogOpen("accept");
+    let setHomepagePromise = TestUtils.waitForPrefChange(
+      HOMEPAGE_PREF,
+      newVal => newVal == homepage
+    );
+
+    EventUtils.synthesizeDrop(
+      dragSrcElement,
+      homeButton,
+      dragData,
+      "copy",
+      window
+    );
+
+    // Ensure dnd suppression is cleared.
+    EventUtils.synthesizeMouseAtCenter(homeButton, { type: "mouseup" }, window);
+
+    await setHomepageDialogPromise;
+    ok(true, "dialog appeared in response to home button drop");
+
+    await setHomepagePromise;
+
+    let modified = Services.prefs.getStringPref(HOMEPAGE_PREF);
+    is(modified, homepage, "homepage is set correctly");
+    Services.prefs.setStringPref(HOMEPAGE_PREF, "about:mozilla;");
+  }
+
+  function dropInvalidURI() {
+    return new Promise(resolve => {
+      let consoleListener = {
+        observe(m) {
+          if (m.message.includes("NS_ERROR_DOM_BAD_URI")) {
+            ok(true, "drop was blocked");
+            resolve();
+          }
+        },
+      };
+      Services.console.registerListener(consoleListener);
+      registerCleanupFunction(function () {
+        Services.console.unregisterListener(consoleListener);
+      });
+
+      executeSoon(function () {
+        info("Attempting second drop, of a javascript: URI");
+        // The drop handler throws an exception when dragging URIs that inherit
+        // principal, e.g. javascript:
+        expectUncaughtException();
+        EventUtils.synthesizeDrop(
+          dragSrcElement,
+          homeButton,
+          [[{ type: "text/plain", data: "javascript:8888" }]],
+          "copy",
+          window
+        );
+        // Ensure dnd suppression is cleared.
+        EventUtils.synthesizeMouseAtCenter(
+          homeButton,
+          { type: "mouseup" },
+          window
+        );
+      });
+    });
+  }
+
+  await drop(
+    [[{ type: "text/plain", data: "http://mochi.test:8888/" }]],
+    "http://mochi.test:8888/"
+  );
+  await drop(
+    [
+      [
+        {
+          type: "text/plain",
+          data: "http://mochi.test:8888/\nhttp://mochi.test:8888/b\nhttp://mochi.test:8888/c",
+        },
+      ],
+    ],
+    "http://mochi.test:8888/|http://mochi.test:8888/b|http://mochi.test:8888/c"
+  );
+  await dropInvalidURI();
+});