Source code

Revision control

Copy as Markdown

Other Tools

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const ResourceCommand = require("resource://devtools/shared/commands/resource/resource-command.js");
module.exports = async function ({
targetCommand,
targetFront,
onAvailableArray,
}) {
// Allow the top level target unconditionnally.
// Also allow frame, but only in content toolbox, i.e. still ignore them in
// the context of the browser toolbox as we inspect messages via the process
// targets
const listenForFrames = targetCommand.descriptorFront.isTabDescriptor;
// Allow workers when messages aren't dispatched to the main thread.
const listenForWorkers =
!targetCommand.rootFront.traits
.workerConsoleApiMessagesDispatchedToMainThread;
const acceptTarget =
targetFront.isTopLevel ||
targetFront.targetType === targetCommand.TYPES.PROCESS ||
(targetFront.targetType === targetCommand.TYPES.FRAME && listenForFrames) ||
(targetFront.targetType === targetCommand.TYPES.WORKER && listenForWorkers);
if (!acceptTarget) {
return;
}
const webConsoleFront = await targetFront.getFront("console");
if (webConsoleFront.isDestroyed()) {
return;
}
// Request notifying about new messages
await webConsoleFront.startListeners(["ConsoleAPI"]);
// Fetch already existing messages
// /!\ The actor implementation requires to call startListeners(ConsoleAPI) first /!\
const { messages } = await webConsoleFront.getCachedMessages(["ConsoleAPI"]);
onAvailableArray([[ResourceCommand.TYPES.CONSOLE_MESSAGE, messages]]);
// Forward new message events
webConsoleFront.on("consoleAPICall", message => {
// Ignore console messages that are cloned from the content process
// (they aren't relevant to toolboxes still using legacy listeners)
if (message.clonedFromContentProcess) {
return;
}
onAvailableArray([[ResourceCommand.TYPES.CONSOLE_MESSAGE, [message]]]);
});
};