1 files changed, 79 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_html_tooltip_xul-wrapper.js b/devtools/client/shared/test/browser_html_tooltip_xul-wrapper.js
new file mode 100644
index 0000000000..cb50d1f858
--- /dev/null
+++ b/devtools/client/shared/test/browser_html_tooltip_xul-wrapper.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 can overflow out of the toolbox when using a XUL panel wrapper.
+ */
+
+const HTML_NS = "http://www.w3.org/1999/xhtml";
+const TEST_URI = CHROME_URL_ROOT + "doc_html_tooltip-05.xhtml";
+
+const {
+  HTMLTooltip,
+} = require("devtools/client/shared/widgets/tooltip/HTMLTooltip");
+loadHelperScript("helper_html_tooltip.js");
+
+// The test toolbox will be 200px tall, the anchors are 50px tall, therefore, the maximum
+// tooltip height that could fit in the toolbox is 150px. Setting 160px, the tooltip will
+// either have to overflow or to be resized.
+const TOOLTIP_HEIGHT = 160;
+const TOOLTIP_WIDTH = 200;
+
+add_task(async function() {
+  // Force the toolbox to be 200px high;
+  await pushPref("devtools.toolbox.footer.height", 200);
+
+  const { win, doc } = await createHost("bottom", TEST_URI);
+
+  info("Resize and move the window to have space below.");
+  const originalWidth = win.outerWidth;
+  const originalHeight = win.outerHeight;
+  win.resizeBy(-100, -200);
+
+  const originalTop = win.screenTop;
+  const originalLeft = win.screenLeft;
+  await moveWindowTo(win, 100, 100);
+
+  registerCleanupFunction(async () => {
+    info("Restore original window dimensions and position.");
+    win.resizeTo(originalWidth, originalHeight);
+    await moveWindowTo(win, originalLeft, originalTop);
+  });
+
+  info("Create HTML tooltip");
+  const tooltip = new HTMLTooltip(doc, { useXulWrapper: true });
+  const div = doc.createElementNS(HTML_NS, "div");
+  div.style.height = "200px";
+  div.style.background = "red";
+  tooltip.panel.appendChild(div);
+  tooltip.setContentSize({ width: TOOLTIP_WIDTH, height: TOOLTIP_HEIGHT });
+
+  const box1 = doc.getElementById("box1");
+
+  // Above box1: check that the tooltip can overflow onto the content page.
+  info("Display the tooltip above box1.");
+  await showTooltip(tooltip, box1, { position: "top" });
+  checkTooltip(tooltip, "top", TOOLTIP_HEIGHT);
+  await hideTooltip(tooltip);
+
+  // Below box1: check that the tooltip can overflow out of the browser window.
+  info("Display the tooltip below box1.");
+  await showTooltip(tooltip, box1, { position: "bottom" });
+  checkTooltip(tooltip, "bottom", TOOLTIP_HEIGHT);
+  await hideTooltip(tooltip);
+
+  is(tooltip.isVisible(), false, "Tooltip is not visible");
+
+  tooltip.destroy();
+});
+
+function checkTooltip(tooltip, position, height) {
+  is(tooltip.position, position, "Actual tooltip position is " + position);
+  const rect = tooltip.container.getBoundingClientRect();
+  is(rect.height, height, "Actual tooltip height is " + height);
+  // Testing the actual left/top offsets is not relevant here as it is handled by the XUL
+  // panel.
+}