зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
4.0 KiB
JavaScript
130 строки
4.0 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
|
|
http://creativecommons.org/publicdomain/zero/1.0/ */
|
|
|
|
"use strict";
|
|
|
|
// Test the CanvasFrameAnonymousContentHelper event handling mechanism.
|
|
|
|
const TEST_URL =
|
|
"data:text/html;charset=utf-8,CanvasFrameAnonymousContentHelper test";
|
|
|
|
add_task(async function() {
|
|
const browser = await addTab(TEST_URL);
|
|
await SpecialPowers.spawn(browser, [], async function() {
|
|
const { require } = ChromeUtils.importESModule(
|
|
"resource://devtools/shared/loader/Loader.sys.mjs"
|
|
);
|
|
const {
|
|
HighlighterEnvironment,
|
|
} = require("resource://devtools/server/actors/highlighters.js");
|
|
const {
|
|
CanvasFrameAnonymousContentHelper,
|
|
} = require("resource://devtools/server/actors/highlighters/utils/markup.js");
|
|
const doc = content.document;
|
|
|
|
const nodeBuilder = () => {
|
|
const root = doc.createElement("div");
|
|
const child = doc.createElement("div");
|
|
child.style =
|
|
"pointer-events:auto;width:200px;height:200px;background:red;";
|
|
child.id = "child-element";
|
|
child.className = "child-element";
|
|
root.appendChild(child);
|
|
return root;
|
|
};
|
|
|
|
info("Building the helper");
|
|
const env = new HighlighterEnvironment();
|
|
env.initFromWindow(doc.defaultView);
|
|
const helper = new CanvasFrameAnonymousContentHelper(env, nodeBuilder);
|
|
await helper.initialize();
|
|
|
|
const el = helper.getElement("child-element");
|
|
|
|
info("Adding an event listener on the inserted element");
|
|
let mouseDownHandled = 0;
|
|
function onMouseDown(e, id) {
|
|
is(
|
|
id,
|
|
"child-element",
|
|
"The mousedown event was triggered on the element"
|
|
);
|
|
ok(!e.originalTarget, "The originalTarget property isn't available");
|
|
mouseDownHandled++;
|
|
}
|
|
el.addEventListener("mousedown", onMouseDown);
|
|
|
|
function once(target, event) {
|
|
return new Promise(done => {
|
|
target.addEventListener(event, done, { once: true });
|
|
});
|
|
}
|
|
|
|
info("Synthesizing an event on the inserted element");
|
|
let onDocMouseDown = once(doc, "mousedown");
|
|
synthesizeMouseDown(100, 100, doc.defaultView);
|
|
await onDocMouseDown;
|
|
|
|
is(
|
|
mouseDownHandled,
|
|
1,
|
|
"The mousedown event was handled once on the element"
|
|
);
|
|
|
|
info("Synthesizing an event somewhere else");
|
|
onDocMouseDown = once(doc, "mousedown");
|
|
synthesizeMouseDown(400, 400, doc.defaultView);
|
|
await onDocMouseDown;
|
|
|
|
is(
|
|
mouseDownHandled,
|
|
1,
|
|
"The mousedown event was not handled on the element"
|
|
);
|
|
|
|
info("Removing the event listener");
|
|
el.removeEventListener("mousedown", onMouseDown);
|
|
|
|
info("Synthesizing another event after the listener has been removed");
|
|
// Using a document event listener to know when the event has been synthesized.
|
|
onDocMouseDown = once(doc, "mousedown");
|
|
synthesizeMouseDown(100, 100, doc.defaultView);
|
|
await onDocMouseDown;
|
|
|
|
is(
|
|
mouseDownHandled,
|
|
1,
|
|
"The mousedown event hasn't been handled after the listener was removed"
|
|
);
|
|
|
|
info("Adding again the event listener");
|
|
el.addEventListener("mousedown", onMouseDown);
|
|
|
|
info("Destroying the helper");
|
|
env.destroy();
|
|
helper.destroy();
|
|
|
|
info("Synthesizing another event after the helper has been destroyed");
|
|
// Using a document event listener to know when the event has been synthesized.
|
|
onDocMouseDown = once(doc, "mousedown");
|
|
synthesizeMouseDown(100, 100, doc.defaultView);
|
|
await onDocMouseDown;
|
|
|
|
is(
|
|
mouseDownHandled,
|
|
1,
|
|
"The mousedown event hasn't been handled after the helper was destroyed"
|
|
);
|
|
|
|
function synthesizeMouseDown(x, y, win) {
|
|
// We need to make sure the inserted anonymous content can be targeted by the
|
|
// event right after having been inserted, and so we need to force a sync
|
|
// reflow.
|
|
win.document.documentElement.offsetWidth;
|
|
EventUtils.synthesizeMouseAtPoint(x, y, { type: "mousedown" }, win);
|
|
}
|
|
});
|
|
|
|
gBrowser.removeCurrentTab();
|
|
});
|