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Explainer https://github.com/WICG/serial/blob/main/EXPLAINER_BLUETOOTH.md Specification https://wicg.github.io/serial/#serialport-interface Summary This feature adds a boolean SerialPort.connected attribute. The attribute is true if the serial port is logically connected. For wired serial ports, a port is logically connected if the port is physically attached to the system. For wireless serial ports, a port is logically connected if the device hosting the port has any open connections to the host. Previously, only wired serial ports dispatched connect and disconnect events. With this feature, Bluetooth RFCOMM serial ports will dispatch these events when the port becomes logically connected or disconnected. This feature is intended to allow applications to detect when a Bluetooth RFCOMM serial port is available without opening the port. Blink component Blink>Serial <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ESerial> Motivation A wireless serial port opened by an application is closed when the wireless device moves out of range of the host. In this scenario, the application that opened the wireless serial port may attempt to re-open it. However, if the wireless device was disconnected intentionally (for instance, if the user disconnected the device from the system control panel) then the application should avoid re-opening the port in order to prevent reconnecting to the device. Exposing the logical connection state of the device hosting the wireless serial port enables applications to distinguish these cases and avoid reconnecting when the device was disconnected intentionally. Initial public proposal https://github.com/WICG/serial/pull/197 Search tags serial <https://chromestatus.com/features#tags:serial>, rfcomm <https://chromestatus.com/features#tags:rfcomm>, bluetooth <https://chromestatus.com/features#tags:bluetooth>, connect <https://chromestatus.com/features#tags:connect> TAG review No TAG review is planned for this minor API change. Bluetooth RFCOMM support was previously reviewed: https://github.com/w3ctag/design-reviews/issues/854 Risks Interoperability and Compatibility Web Serial has not yet been adopted by other browser engines which makes this incremental change a low interoperability risk. Gecko: Neutral (https://mozilla.github.io/standards-positions/#webserial) Deferring to the Web Serial (Add-On Gated) position. Mozilla has not commented on this specific feature. WebKit: Negative (https://webkit.org/tracking-prevention) Apple is opposed to Web Serial API, we assume they also oppose any extensions to the API. Web developers: Positive (requested by an internal partner) Other signals: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? Web Serial API is not implemented for Android WebView. Debuggability None Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ? No. Web Serial tests that were previously in web-platform-tests have been temporarily moved to Chrome's wpt_internal. We plan to upstream them again after specifying a test API. Flag name on chrome://flags None Finch feature name EnableBluetoothSerialPortProfileInSerialApi Requires code in //chrome? False Tracking bug https://crbug.com/1488031 Launch bug https://launch.corp.google.com/4297948 Estimated milestones No milestones specified Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5118102654418944 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAHB%2BDAiJmnJTvQdiMezidfK4vu7r6_nLxyYfjg1n%2B8%2BAcEEyZQ%40mail.gmail.com.
