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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test that the css transform highlighter is shown when hovering over transform
// properties
// Note that in this test, we mock the highlighter front, merely testing the
// behavior of the style-inspector UI for now
const TEST_URI = `
<style type="text/css">
html {
transform: scale(.9);
}
body {
transform: skew(16deg);
color: purple;
}
</style>
Test the css transform highlighter
`;
const { TYPES } = ChromeUtils.importESModule(
"resource://devtools/shared/highlighters.mjs"
);
const TYPE = TYPES.TRANSFORM;
add_task(async function () {
await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
const { inspector, view } = await openRuleView();
// Mock the highlighter front to get the reference of the NodeFront
const HighlighterFront = {
isShown: false,
nodeFront: null,
nbOfTimesShown: 0,
show(nodeFront) {
this.nodeFront = nodeFront;
this.isShown = true;
this.nbOfTimesShown++;
return Promise.resolve(true);
},
hide() {
this.nodeFront = null;
this.isShown = false;
return Promise.resolve();
},
finalize() {},
};
// Inject the mock highlighter in the rule-view
const hs = view.highlighters;
hs.highlighters[TYPE] = HighlighterFront;
let { valueSpan } = getRuleViewProperty(view, "body", "transform");
info("Checking that the HighlighterFront's show/hide methods are called");
let onHighlighterShown = hs.once("css-transform-highlighter-shown");
hs.onMouseMove({ target: valueSpan });
await onHighlighterShown;
ok(HighlighterFront.isShown, "The highlighter is shown");
let onHighlighterHidden = hs.once("css-transform-highlighter-hidden");
hs.onMouseOut();
await onHighlighterHidden;
ok(!HighlighterFront.isShown, "The highlighter is hidden");
info(
"Checking that hovering several times over the same property doesn't" +
" show the highlighter several times"
);
const nb = HighlighterFront.nbOfTimesShown;
onHighlighterShown = hs.once("css-transform-highlighter-shown");
hs.onMouseMove({ target: valueSpan });
await onHighlighterShown;
is(HighlighterFront.nbOfTimesShown, nb + 1, "The highlighter was shown once");
hs.onMouseMove({ target: valueSpan });
hs.onMouseMove({ target: valueSpan });
is(
HighlighterFront.nbOfTimesShown,
nb + 1,
"The highlighter was shown once, after several mousemove"
);
info("Checking that the right NodeFront reference is passed");
await selectNode("html", inspector);
({ valueSpan } = getRuleViewProperty(view, "html", "transform"));
onHighlighterShown = hs.once("css-transform-highlighter-shown");
hs.onMouseMove({ target: valueSpan });
await onHighlighterShown;
is(
HighlighterFront.nodeFront.tagName,
"HTML",
"The right NodeFront is passed to the highlighter (1)"
);
await selectNode("body", inspector);
({ valueSpan } = getRuleViewProperty(view, "body", "transform"));
onHighlighterShown = hs.once("css-transform-highlighter-shown");
hs.onMouseMove({ target: valueSpan });
await onHighlighterShown;
is(
HighlighterFront.nodeFront.tagName,
"BODY",
"The right NodeFront is passed to the highlighter (2)"
);
info(
"Checking that the highlighter gets hidden when hovering a " +
"non-transform property"
);
({ valueSpan } = getRuleViewProperty(view, "body", "color"));
onHighlighterHidden = hs.once("css-transform-highlighter-hidden");
hs.onMouseMove({ target: valueSpan });
await onHighlighterHidden;
ok(!HighlighterFront.isShown, "The highlighter is hidden");
});