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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js')
-rw-r--r-- | devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js b/devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js new file mode 100644 index 0000000000..e0c5b18d51 --- /dev/null +++ b/devtools/shared/commands/target/legacy-target-watchers/legacy-processes-watcher.js @@ -0,0 +1,72 @@ +/* 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"; + +class LegacyProcessesWatcher { + constructor(targetCommand, onTargetAvailable, onTargetDestroyed) { + this.targetCommand = targetCommand; + this.rootFront = targetCommand.rootFront; + + this.onTargetAvailable = onTargetAvailable; + this.onTargetDestroyed = onTargetDestroyed; + + this.descriptors = new Set(); + this._processListChanged = this._processListChanged.bind(this); + } + + async _processListChanged() { + if (this.targetCommand.isDestroyed()) { + return; + } + + const processes = await this.rootFront.listProcesses(); + // Process the new list to detect the ones being destroyed + // Force destroyed the descriptor as well as the target + for (const descriptor of this.descriptors) { + if (!processes.includes(descriptor)) { + // Manually call onTargetDestroyed listeners in order to + // ensure calling them *before* destroying the descriptor. + // Otherwise the descriptor will automatically destroy the target + // and may not fire the contentProcessTarget's destroy event. + const target = descriptor.getCachedTarget(); + if (target) { + this.onTargetDestroyed(target); + } + + descriptor.destroy(); + this.descriptors.delete(descriptor); + } + } + + const promises = processes + .filter(descriptor => !this.descriptors.has(descriptor)) + .map(async descriptor => { + // Add the new process descriptors to the local list + this.descriptors.add(descriptor); + const target = await descriptor.getTarget(); + if (!target) { + console.error( + "Wasn't able to retrieve the target for", + descriptor.actorID + ); + return; + } + await this.onTargetAvailable(target); + }); + + await Promise.all(promises); + } + + async listen() { + this.rootFront.on("processListChanged", this._processListChanged); + await this._processListChanged(); + } + + unlisten() { + this.rootFront.off("processListChanged", this._processListChanged); + } +} + +module.exports = LegacyProcessesWatcher; |