1 files changed, 103 insertions, 0 deletions
diff --git a/devtools/client/inspector/markup/test/browser_markup_tag_edit_12.js b/devtools/client/inspector/markup/test/browser_markup_tag_edit_12.js
new file mode 100644
index 0000000000..64f9e9d57a
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+++ b/devtools/client/inspector/markup/test/browser_markup_tag_edit_12.js
@@ -0,0 +1,103 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that focus position is correct when tabbing through and editing
+// attributes.
+
+const TEST_URL =
+  "data:text/html;charset=utf8," +
+  "<div id='attr' a='1' b='2' c='3'></div>" +
+  "<div id='delattr' tobeinvalid='1' last='2'></div>";
+
+add_task(async function () {
+  const { inspector } = await openInspectorForURL(TEST_URL);
+
+  await testAttributeEditing(inspector);
+  await testAttributeDeletion(inspector);
+});
+
+async function testAttributeEditing(inspector) {
+  info("Testing focus position after attribute editing");
+
+  info("Setting the first non-id attribute in edit mode");
+  // focuses id
+  await activateFirstAttribute("#attr", inspector);
+  // focuses the first attr after id
+  collapseSelectionAndTab(inspector);
+
+  const attrs = await getAttributesFromEditor("#attr", inspector);
+
+  info(
+    "Editing this attribute, keeping the same name, " +
+      "and tabbing to the next"
+  );
+  await editAttributeAndTab(attrs[1] + '="99"', inspector);
+  checkFocusedAttribute(attrs[2], true);
+
+  info(
+    "Editing the new focused attribute, keeping the name, " +
+      "and tabbing to the previous"
+  );
+  await editAttributeAndTab(attrs[2] + '="99"', inspector, true);
+  checkFocusedAttribute(attrs[1], true);
+
+  info("Editing attribute name, changes attribute order");
+  await editAttributeAndTab("d='4'", inspector);
+  checkFocusedAttribute("id", true);
+
+  // Escape of the currently focused field for the next test
+  EventUtils.sendKey("escape", inspector.panelWin);
+}
+
+async function testAttributeDeletion(inspector) {
+  info("Testing focus position after attribute deletion");
+
+  info("Setting the first non-id attribute in edit mode");
+  // focuses id
+  await activateFirstAttribute("#delattr", inspector);
+  // focuses the first attr after id
+  collapseSelectionAndTab(inspector);
+
+  const attrs = await getAttributesFromEditor("#delattr", inspector);
+
+  info("Entering an invalid attribute to delete the attribute");
+  await editAttributeAndTab('"', inspector);
+  checkFocusedAttribute(attrs[2], true);
+
+  info("Deleting the last attribute");
+  await editAttributeAndTab(" ", inspector);
+
+  // Check we're on the newattr element
+  const focusedAttr = Services.focus.focusedElement;
+  ok(
+    focusedAttr.classList.contains("styleinspector-propertyeditor"),
+    "in newattr"
+  );
+  is(focusedAttr.tagName, "textarea", "newattr is active");
+}
+
+async function editAttributeAndTab(newValue, inspector, goPrevious) {
+  const onEditMutation = inspector.markup.once("refocusedonedit");
+  inspector.markup.doc.activeElement.value = newValue;
+  if (goPrevious) {
+    EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, inspector.panelWin);
+  } else {
+    EventUtils.sendKey("tab", inspector.panelWin);
+  }
+  await onEditMutation;
+}
+
+/**
+ * Given a markup container, focus and turn in edit mode its first attribute
+ * field.
+ */
+async function activateFirstAttribute(container, inspector) {
+  const { editor } = await focusNode(container, inspector);
+  editor.tag.focus();
+
+  // Go to "id" attribute and trigger edit mode.
+  EventUtils.sendKey("tab", inspector.panelWin);
+  EventUtils.sendKey("return", inspector.panelWin);
+}