/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test support for event propagation stop in the
// CanvasFrameAnonymousContentHelper event handling mechanism.
const TEST_URL = "data:text/html;charset=utf-8,CanvasFrameAnonymousContentHelper test";
add_task(async function () {
let browser = await addTab(TEST_URL);
await ContentTask.spawn(browser, null, async function () {
const {require} = ChromeUtils.import("resource://devtools/shared/Loader.jsm", {});
const {HighlighterEnvironment} = require("devtools/server/actors/highlighters");
const {
CanvasFrameAnonymousContentHelper
} = require("devtools/server/actors/highlighters/utils/markup");
let doc = content.document;
let nodeBuilder = () => {
let root = doc.createElement("div");
let parent = doc.createElement("div");
parent.style = "pointer-events:auto;width:300px;height:300px;background:yellow;";
parent.id = "parent-element";
root.appendChild(parent);
let child = doc.createElement("div");
child.style = "pointer-events:auto;width:200px;height:200px;background:red;";
child.id = "child-element";
parent.appendChild(child);
return root;
};
info("Building the helper");
let env = new HighlighterEnvironment();
env.initFromWindow(doc.defaultView);
let helper = new CanvasFrameAnonymousContentHelper(env, nodeBuilder);
info("Getting the parent and child elements");
let parentEl = helper.getElement("parent-element");
let childEl = helper.getElement("child-element");
info("Adding an event listener on both elements");
let mouseDownHandled = [];
function onParentMouseDown(e, id) {
mouseDownHandled.push(id);
}
parentEl.addEventListener("mousedown", onParentMouseDown);
function onChildMouseDown(e, id) {
mouseDownHandled.push(id);
e.stopPropagation();
}
childEl.addEventListener("mousedown", onChildMouseDown);
function once(target, event) {
return new Promise(done => {
target.addEventListener(event, done, { once: true });
});
}
info("Synthesizing an event on the child element");
let onDocMouseDown = once(doc, "mousedown");
synthesizeMouseDown(100, 100, doc.defaultView);
await onDocMouseDown;
is(mouseDownHandled.length, 1, "The mousedown event was handled only once");
is(mouseDownHandled[0], "child-element",
"The mousedown event was handled on the child element");
info("Synthesizing an event on the parent, outside of the child element");
mouseDownHandled = [];
onDocMouseDown = once(doc, "mousedown");
synthesizeMouseDown(250, 250, doc.defaultView);
await onDocMouseDown;
is(mouseDownHandled.length, 1, "The mousedown event was handled only once");
is(mouseDownHandled[0], "parent-element",
"The mousedown event was handled on the parent element");
info("Removing the event listener");
parentEl.removeEventListener("mousedown", onParentMouseDown);
childEl.removeEventListener("mousedown", onChildMouseDown);
env.destroy();
helper.destroy();
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;
// Minimal environment for EventUtils to work.
let EventUtils = {
window: content,
parent: content,
_EU_Ci: Ci,
_EU_Cc: Cc,
};
Services.scriptloader.loadSubScript("chrome://mochikit/content/tests/SimpleTest/EventUtils.js", EventUtils);
EventUtils.synthesizeMouseAtPoint(x, y, {type: "mousedown"}, win);
}
});
gBrowser.removeCurrentTab();
});