1 files changed, 79 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_html_tooltip_doorhanger-01.js b/devtools/client/shared/test/browser_html_tooltip_doorhanger-01.js
new file mode 100644
index 0000000000..7e2d9e5657
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+++ b/devtools/client/shared/test/browser_html_tooltip_doorhanger-01.js
@@ -0,0 +1,79 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+/* import-globals-from helper_html_tooltip.js */
+
+"use strict";
+
+/**
+ * Test the HTMLTooltip "doorhanger" type's hang direction. It should hang
+ * along the flow of text e.g. in RTL mode it should hang left and in LTR mode
+ * it should hang right.
+ */
+
+const HTML_NS = "http://www.w3.org/1999/xhtml";
+const TEST_URI = CHROME_URL_ROOT + "doc_html_tooltip_doorhanger-01.xhtml";
+
+const {
+  HTMLTooltip,
+} = require("resource://devtools/client/shared/widgets/tooltip/HTMLTooltip.js");
+loadHelperScript("helper_html_tooltip.js");
+
+let useXulWrapper;
+
+add_task(async function () {
+  // Force the toolbox to be 200px high;
+  await pushPref("devtools.toolbox.footer.height", 200);
+
+  await addTab("about:blank");
+  const { doc } = await createHost("bottom", TEST_URI);
+
+  info("Run tests for a Tooltip without using a XUL panel");
+  useXulWrapper = false;
+  await runTests(doc);
+});
+
+async function runTests(doc) {
+  info("Create HTML tooltip");
+  const tooltip = new HTMLTooltip(doc, { type: "doorhanger", useXulWrapper });
+  const div = doc.createElementNS(HTML_NS, "div");
+  div.style.width = "200px";
+  div.style.height = "35px";
+  tooltip.panel.appendChild(div);
+
+  const anchors = [...doc.querySelectorAll(".anchor")];
+  for (const anchor of anchors) {
+    const hangDirection = anchor.getAttribute("data-hang");
+
+    info("Display the tooltip on an anchor.");
+    await showTooltip(tooltip, anchor);
+
+    const arrow = tooltip.arrow;
+    ok(arrow, "Tooltip has an arrow");
+
+    // Get the geometry of the the tooltip panel & arrow.
+    const panelBounds = tooltip.panel
+      .getBoxQuads({ relativeTo: doc })[0]
+      .getBounds();
+    const arrowBounds = arrow.getBoxQuads({ relativeTo: doc })[0].getBounds();
+    const panelBoundsCentre = (panelBounds.left + panelBounds.right) / 2;
+    const arrowCentre = (arrowBounds.left + arrowBounds.right) / 2;
+
+    if (hangDirection === "left") {
+      Assert.greater(
+        arrowCentre,
+        panelBoundsCentre,
+        `tooltip hangs to the left for ${anchor.id}`
+      );
+    } else {
+      Assert.less(
+        arrowCentre,
+        panelBoundsCentre,
+        `tooltip hangs to the right for ${anchor.id}`
+      );
+    }
+
+    await hideTooltip(tooltip);
+  }
+
+  tooltip.destroy();
+}