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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
"use strict";
// Test that the inspector splitter is properly initialized in horizontal mode if the
// inspector starts in portrait mode.
add_task(async function () {
let { inspector, toolbox } = await openInspectorForURL(
"data:text/html;charset=utf-8,<h1>foo</h1><span>bar</span>",
"window"
);
const hostWindow = toolbox.win.parent;
const originalWidth = hostWindow.outerWidth;
const originalHeight = hostWindow.outerHeight;
let splitter = inspector.panelDoc.querySelector(
".inspector-sidebar-splitter"
);
// If the inspector is not already in landscape mode.
if (!splitter.classList.contains("vert")) {
info("Resize toolbox window to force inspector to landscape mode");
const onClassnameMutation = waitForClassMutation(splitter);
hostWindow.resizeTo(800, 500);
await onClassnameMutation;
ok(splitter.classList.contains("vert"), "Splitter is in vertical mode");
}
info("Resize toolbox window to force inspector to portrait mode");
const onClassnameMutation = waitForClassMutation(splitter);
hostWindow.resizeTo(500, 500);
await onClassnameMutation;
ok(splitter.classList.contains("horz"), "Splitter is in horizontal mode");
info("Close the inspector");
await toolbox.destroy();
info("Reopen inspector");
({ inspector, toolbox } = await openInspector("window"));
// Devtools window should still be 500px * 500px, inspector should still be in portrait.
splitter = inspector.panelDoc.querySelector(".inspector-sidebar-splitter");
ok(splitter.classList.contains("horz"), "Splitter is in horizontal mode");
info("Restore original window size");
toolbox.win.parent.resizeTo(originalWidth, originalHeight);
});
/**
* Helper waiting for a class attribute mutation on the provided target. Returns a
* promise.
*
* @param {Node} target
* Node to observe
* @return {Promise} promise that will resolve upon receiving a mutation for the class
* attribute on the target.
*/
function waitForClassMutation(target) {
return new Promise(resolve => {
const observer = new MutationObserver(mutations => {
for (const mutation of mutations) {
if (mutation.attributeName === "class") {
observer.disconnect();
resolve();
return;
}
}
});
observer.observe(target, { attributes: true });
});
}
registerCleanupFunction(function () {
// Restore the host type for other tests.
Services.prefs.clearUserPref("devtools.toolbox.host");
});