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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
/* exported assertOwnershipTrees, checkMissing, waitForMutation,
isSrcChange, isUnretained, isChildList */
function serverOwnershipTree(walkerArg) {
return SpecialPowers.spawn(
gBrowser.selectedBrowser,
[[walkerArg.actorID]],
function (actorID) {
const { require } = ChromeUtils.importESModule(
"resource://devtools/shared/loader/Loader.sys.mjs"
);
const {
DevToolsServer,
} = require("resource://devtools/server/devtools-server.js");
const {
DocumentWalker,
} = require("resource://devtools/server/actors/inspector/document-walker.js");
// Convert actorID to current compartment string otherwise
// searchAllConnectionsForActor is confused and won't find the actor.
actorID = String(actorID);
const serverWalker = DevToolsServer.searchAllConnectionsForActor(actorID);
function sortOwnershipChildrenContentScript(children) {
return children.sort((a, b) => a.name.localeCompare(b.name));
}
function serverOwnershipSubtree(walker, node) {
const actor = walker.getNode(node);
if (!actor) {
return undefined;
}
const children = [];
const docwalker = new DocumentWalker(node, content);
let child = docwalker.firstChild();
while (child) {
const item = serverOwnershipSubtree(walker, child);
if (item) {
children.push(item);
}
child = docwalker.nextSibling();
}
return {
name: actor.actorID,
children: sortOwnershipChildrenContentScript(children),
};
}
return {
root: serverOwnershipSubtree(serverWalker, serverWalker.rootDoc),
orphaned: [...serverWalker._orphaned].map(o =>
serverOwnershipSubtree(serverWalker, o.rawNode)
),
retained: [...serverWalker._retainedOrphans].map(o =>
serverOwnershipSubtree(serverWalker, o.rawNode)
),
};
}
);
}
function sortOwnershipChildren(children) {
return children.sort((a, b) => a.name.localeCompare(b.name));
}
function clientOwnershipSubtree(node) {
return {
name: node.actorID,
children: sortOwnershipChildren(
node.treeChildren().map(child => clientOwnershipSubtree(child))
),
};
}
function clientOwnershipTree(walker) {
return {
root: clientOwnershipSubtree(walker.rootNode),
orphaned: [...walker._orphaned].map(o => clientOwnershipSubtree(o)),
retained: [...walker._retainedOrphans].map(o => clientOwnershipSubtree(o)),
};
}
function ownershipTreeSize(tree) {
let size = 1;
for (const child of tree.children) {
size += ownershipTreeSize(child);
}
return size;
}
async function assertOwnershipTrees(walker) {
const serverTree = await serverOwnershipTree(walker);
const clientTree = clientOwnershipTree(walker);
is(
JSON.stringify(clientTree, null, " "),
JSON.stringify(serverTree, null, " "),
"Server and client ownership trees should match."
);
return ownershipTreeSize(clientTree.root);
}
// Verify that an actorID is inaccessible both from the client library and the server.
function checkMissing({ client }, actorID) {
return new Promise(resolve => {
const front = client.getFrontByID(actorID);
ok(
!front,
"Front shouldn't be accessible from the client for actorID: " + actorID
);
client
.request(
{
to: actorID,
type: "request",
},
response => {
is(
response.error,
"noSuchActor",
"node list actor should no longer be contactable."
);
resolve(undefined);
}
)
.catch(() => {});
});
}
// Load mutations aren't predictable, so keep accumulating mutations until
// the one we're looking for shows up.
function waitForMutation(walker, test, mutations = []) {
return new Promise(resolve => {
for (const change of mutations) {
if (test(change)) {
resolve(mutations);
}
}
walker.once("mutations", newMutations => {
waitForMutation(walker, test, mutations.concat(newMutations)).then(
finalMutations => {
resolve(finalMutations);
}
);
});
});
}
function isSrcChange(change) {
return change.type === "attributes" && change.attributeName === "src";
}
function isUnretained(change) {
return change.type === "unretained";
}
function isChildList(change) {
return change.type === "childList";
}
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