diff options
Diffstat (limited to 'devtools/shared/commands/resource/legacy-listeners/error-messages.js')
-rw-r--r-- | devtools/shared/commands/resource/legacy-listeners/error-messages.js | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/devtools/shared/commands/resource/legacy-listeners/error-messages.js b/devtools/shared/commands/resource/legacy-listeners/error-messages.js new file mode 100644 index 0000000000..5ba898c917 --- /dev/null +++ b/devtools/shared/commands/resource/legacy-listeners/error-messages.js @@ -0,0 +1,62 @@ +/* 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"); +const { MESSAGE_CATEGORY } = require("resource://devtools/shared/constants.js"); + +module.exports = async function ({ targetCommand, targetFront, onAvailable }) { + // 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 + // Also ignore workers as they are not supported yet. (see bug 1592584) + const listenForFrames = targetCommand.descriptorFront.isTabDescriptor; + const isAllowed = + targetFront.isTopLevel || + targetFront.targetType === targetCommand.TYPES.PROCESS || + (targetFront.targetType === targetCommand.TYPES.FRAME && listenForFrames); + + if (!isAllowed) { + return; + } + + const webConsoleFront = await targetFront.getFront("console"); + if (webConsoleFront.isDestroyed()) { + return; + } + + // Request notifying about new messages. Here the "PageError" type start listening for + // both actual PageErrors (emitted as "pageError" events) as well as LogMessages ( + // emitted as "logMessage" events). This function only set up the listener on the + // webConsoleFront for "pageError". + await webConsoleFront.startListeners(["PageError"]); + + // Fetch already existing messages + // /!\ The actor implementation requires to call startListeners("PageError") first /!\ + let { messages } = await webConsoleFront.getCachedMessages(["PageError"]); + + // On server < v79, we're also getting CSS Messages that we need to filter out. + messages = messages.filter( + message => message.pageError.category !== MESSAGE_CATEGORY.CSS_PARSER + ); + + messages.forEach(message => { + message.resourceType = ResourceCommand.TYPES.ERROR_MESSAGE; + }); + // Cached messages don't have the same shape as live messages, + // so we need to transform them. + onAvailable(messages); + + webConsoleFront.on("pageError", message => { + // On server < v79, we're getting CSS Messages that we need to filter out. + if (message.pageError.category === MESSAGE_CATEGORY.CSS_PARSER) { + return; + } + + message.resourceType = ResourceCommand.TYPES.ERROR_MESSAGE; + onAvailable([message]); + }); +}; |