gecko/browser/devtools/responsivedesign/test/browser_responsivecomputedview.js

100 lines
2.5 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
function test() {
let instance;
let computedView;
let inspector;
waitForExplicitFinish();
gBrowser.selectedTab = gBrowser.addTab();
gBrowser.selectedBrowser.addEventListener("load", function onload() {
gBrowser.selectedBrowser.removeEventListener("load", onload, true);
waitForFocus(startTest, content);
}, true);
content.location = "data:text/html;charset=utf-8,<html><style>" +
"div {" +
" width: 500px;" +
" height: 10px;" +
" background: purple;" +
"} " +
"@media screen and (max-width: 200px) {" +
" div { " +
" width: 100px;" +
" }" +
"};" +
"</style><div></div></html>"
function computedWidth() {
for (let prop of computedView.propertyViews) {
if (prop.name === "width") {
return prop.valueNode.textContent;
}
}
return null;
}
function startTest() {
document.getElementById("Tools:ResponsiveUI").doCommand();
executeSoon(onUIOpen);
}
function onUIOpen() {
instance = gBrowser.selectedTab.__responsiveUI;
ok(instance, "instance of the module is attached to the tab.");
instance.stack.setAttribute("notransition", "true");
registerCleanupFunction(function() {
instance.stack.removeAttribute("notransition");
});
instance.setSize(500, 500);
openComputedView().then(onInspectorUIOpen);
}
function onInspectorUIOpen(args) {
inspector = args.inspector;
computedView = args.view;
ok(inspector, "Got inspector instance");
let div = content.document.getElementsByTagName("div")[0];
inspector.selection.setNode(div);
inspector.once("inspector-updated", testShrink);
}
function testShrink() {
is(computedWidth(), "500px", "Should show 500px initially.");
inspector.once("computed-view-refreshed", function onShrink() {
is(computedWidth(), "100px", "div should be 100px after shrinking.");
testGrow();
});
instance.setSize(100, 100);
}
function testGrow() {
inspector.once("computed-view-refreshed", function onGrow() {
is(computedWidth(), "500px", "Should be 500px after growing.");
finishUp();
});
instance.setSize(500, 500);
}
function finishUp() {
document.getElementById("Tools:ResponsiveUI").doCommand();
// Menus are correctly updated?
is(document.getElementById("Tools:ResponsiveUI").getAttribute("checked"), "false", "menu unchecked");
gBrowser.removeCurrentTab();
finish();
}
}