1 files changed, 117 insertions, 0 deletions
diff --git a/devtools/client/inspector/test/browser_inspector_highlighter-rulers_03.js b/devtools/client/inspector/test/browser_inspector_highlighter-rulers_03.js
new file mode 100644
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+++ b/devtools/client/inspector/test/browser_inspector_highlighter-rulers_03.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Test the creation of the viewport infobar and makes sure if resizes correctly
+
+const TEST_URL =
+  "data:text/html;charset=utf-8," +
+  "<div style='position:absolute;left: 0; top: 0; " +
+  "width: 20px; height: 50px'></div>";
+
+const ID = "viewport-size-highlighter-";
+
+var { Toolbox } = require("resource://devtools/client/framework/toolbox.js");
+
+add_task(async function () {
+  const { inspector, highlighterTestFront } = await openInspectorForURL(
+    TEST_URL
+  );
+  const front = inspector.inspectorFront;
+
+  const highlighter = await front.getHighlighterByType(
+    "ViewportSizeHighlighter"
+  );
+
+  await isVisibleAfterShow(highlighter, inspector, highlighterTestFront);
+  await hasRightLabelsContent(highlighter, highlighterTestFront);
+  await resizeInspector(inspector);
+  await hasRightLabelsContent(highlighter, highlighterTestFront);
+  await isHiddenAfterHide(highlighter, inspector, highlighterTestFront);
+
+  await highlighter.finalize();
+});
+
+async function isVisibleAfterShow(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  info("Checking that the viewport infobar is displayed");
+  // the rulers doesn't need any node, but as highligher it seems mandatory
+  // ones, so the body is given
+  const body = await getNodeFront("body", inspector);
+  await highlighterFront.show(body);
+
+  const hidden = await isViewportInfobarHidden(
+    highlighterFront,
+    highlighterTestFront
+  );
+  ok(!hidden, "viewport infobar is visible after show");
+}
+
+async function isHiddenAfterHide(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  info("Checking that the viewport infobar is hidden after disabling");
+  await highlighterFront.hide();
+
+  const hidden = await isViewportInfobarHidden(
+    highlighterFront,
+    highlighterTestFront
+  );
+  ok(hidden, "viewport infobar is hidden after hide");
+}
+
+async function hasRightLabelsContent(highlighterFront, highlighterTestFront) {
+  const windowDimensions = await SpecialPowers.spawn(
+    gBrowser.selectedBrowser,
+    [],
+    () => {
+      const { require } = ChromeUtils.importESModule(
+        "resource://devtools/shared/loader/Loader.sys.mjs"
+      );
+      const {
+        getWindowDimensions,
+      } = require("resource://devtools/shared/layout/utils.js");
+      return getWindowDimensions(content);
+    }
+  );
+  const windowHeight = Math.round(windowDimensions.height);
+  const windowWidth = Math.round(windowDimensions.width);
+  const windowText = windowWidth + "px \u00D7 " + windowHeight + "px";
+
+  info("Wait until the rulers dimension tooltip have the proper text");
+  await asyncWaitUntil(async () => {
+    const dimensionText =
+      await highlighterTestFront.getHighlighterNodeTextContent(
+        `${ID}viewport-infobar-container`,
+        highlighterFront
+      );
+    return dimensionText == windowText;
+  }, 100);
+}
+
+async function resizeInspector(inspector) {
+  info(
+    "Docking the toolbox to the side of the browser to change the window size"
+  );
+  const toolbox = inspector.toolbox;
+  await toolbox.switchHost(Toolbox.HostType.RIGHT);
+
+  // Wait for some time to avoid measuring outdated window dimensions.
+  await wait(100);
+}
+
+async function isViewportInfobarHidden(highlighterFront, highlighterTestFront) {
+  const hidden = await highlighterTestFront.getHighlighterNodeAttribute(
+    `${ID}viewport-infobar-container`,
+    "hidden",
+    highlighterFront
+  );
+  return hidden === "true";
+}