1 files changed, 80 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 000000000..5c21f21c3
--- /dev/null
+++ b/devtools/client/shared/test/browser_html_tooltip_xul-wrapper.js
@@ -0,0 +1,80 @@
+/* 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 = `data:text/xml;charset=UTF-8,<?xml version="1.0"?>
+  <?xml-stylesheet href="chrome://global/skin/global.css"?>
+  <?xml-stylesheet href="chrome://devtools/skin/tooltips.css"?>
+  <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+   title="Tooltip test">
+    <vbox flex="1">
+      <hbox id="box1" style="height: 50px">test1</hbox>
+      <hbox id="box2" style="height: 50px">test2</hbox>
+      <hbox id="box3" style="height: 50px">test3</hbox>
+      <hbox id="box4" style="height: 50px">test4</hbox>
+    </vbox>
+  </window>`;
+
+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(function* () {
+  // Force the toolbox to be 200px high;
+  yield pushPref("devtools.toolbox.footer.height", 200);
+
+  let [, win, doc] = yield createHost("bottom", TEST_URI);
+
+  info("Resizing window to have some space below the window.");
+  let originalWidth = win.top.outerWidth;
+  let originalHeight = win.top.outerHeight;
+  win.top.resizeBy(0, -100);
+
+  info("Create HTML tooltip");
+  let tooltip = new HTMLTooltip(doc, {useXulWrapper: true});
+  let div = doc.createElementNS(HTML_NS, "div");
+  div.style.height = "200px";
+  div.style.background = "red";
+  tooltip.setContent(div, {width: TOOLTIP_WIDTH, height: TOOLTIP_HEIGHT});
+
+  let box1 = doc.getElementById("box1");
+
+  // Above box1: check that the tooltip can overflow onto the content page.
+  info("Display the tooltip above box1.");
+  yield showTooltip(tooltip, box1, {position: "top"});
+  checkTooltip(tooltip, "top", TOOLTIP_HEIGHT);
+  yield hideTooltip(tooltip);
+
+  // Below box1: check that the tooltip can overflow out of the browser window.
+  info("Display the tooltip below box1.");
+  yield showTooltip(tooltip, box1, {position: "bottom"});
+  checkTooltip(tooltip, "bottom", TOOLTIP_HEIGHT);
+  yield hideTooltip(tooltip);
+
+  is(tooltip.isVisible(), false, "Tooltip is not visible");
+
+  tooltip.destroy();
+
+  info("Restore original window dimensions.");
+  win.top.resizeTo(originalWidth, originalHeight);
+});
+
+function checkTooltip(tooltip, position, height) {
+  is(tooltip.position, position, "Actual tooltip position is " + position);
+  let 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.
+}