diff options
| author | Po Lu <luangruo@yahoo.com> | 2022-02-15 09:19:12 +0800 |
|---|---|---|
| committer | Po Lu <luangruo@yahoo.com> | 2022-02-15 09:19:12 +0800 |
| commit | bb33446f2a4a2540fe3fcbc07d9fadacb024f963 (patch) | |
| tree | 59d5a0b03d28db27b69071280bcf21edf9b328f0 /src | |
| parent | d43ca3855608752d26f3d615424339cd522322f4 (diff) | |
Better handle devices being enabled on XI2
* src/xterm.c (handle_one_xevent): Don't abort on DeviceChanged
if the device couldn't be found, instead regenerating the device
hierarchy to see if it was enabled.
Diffstat (limited to 'src')
| -rw-r--r-- | src/xterm.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/xterm.c b/src/xterm.c index cff4b07c6ea..9c24a074e3d 100644 --- a/src/xterm.c +++ b/src/xterm.c @@ -581,6 +581,11 @@ x_free_xi_devices (struct x_display_info *dpyinfo) /* Setup valuator tracking for XI2 master devices on DPYINFO->display. */ +/* This function's name is a misnomer: these days, it keeps a + client-side record of all devices, which includes basic information + about the device and also touchscreen tracking information, instead + of just scroll valuators. */ + static void x_init_master_valuators (struct x_display_info *dpyinfo) { @@ -11906,7 +11911,18 @@ handle_one_xevent (struct x_display_info *dpyinfo, device = xi_device_from_id (dpyinfo, device_changed->deviceid); if (!device) - emacs_abort (); + { + /* An existing device might have been enabled. */ + x_init_master_valuators (dpyinfo); + + /* Now try to find the device again, in case it was + just enabled. */ + device = xi_device_from_id (dpyinfo, device_changed->deviceid); + } + + /* If it wasn't enabled, then stop handling this event. */ + if (!device) + goto XI_OTHER; /* Free data that we will regenerate from new information. */ |