diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2016-03-04 11:25:15 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-03-08 12:20:11 +0100 |
| commit | 46d921bebe4d0767a343ac81469ded6230e2defb (patch) | |
| tree | 3e3a53f3fce6e56ad72da89ba2712662aa9f0075 | |
| parent | e0d2bd5195fdc032c8da566027a35a97aaa0394b (diff) | |
input-linux: add option to toggle grab on all devices
Maintain a list of all input devices. Add an option to make grab
work across all devices (so toggling grab on the keybard can switch
over the mouse too).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1457087116-4379-3-git-send-email-kraxel@redhat.com
| -rw-r--r-- | ui/input-linux.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/ui/input-linux.c b/ui/input-linux.c index 5374a2e8e5..ad43963bd3 100644 --- a/ui/input-linux.c +++ b/ui/input-linux.c @@ -134,14 +134,19 @@ struct InputLinux { int fd; bool grab_request; bool grab_active; + bool grab_all; bool keydown[KEY_CNT]; int keycount; int wheel; + QTAILQ_ENTRY(InputLinux) next; }; +static QTAILQ_HEAD(, InputLinux) inputs = QTAILQ_HEAD_INITIALIZER(inputs); + static void input_linux_toggle_grab(InputLinux *il) { intptr_t request = !il->grab_active; + InputLinux *item; int rc; rc = ioctl(il->fd, EVIOCGRAB, request); @@ -149,6 +154,19 @@ static void input_linux_toggle_grab(InputLinux *il) return; } il->grab_active = !il->grab_active; + + if (!il->grab_all) { + return; + } + QTAILQ_FOREACH(item, &inputs, next) { + if (item == il || item->grab_all) { + /* avoid endless loops */ + continue; + } + if (item->grab_active != il->grab_active) { + input_linux_toggle_grab(item); + } + } } static void input_linux_event_keyboard(void *opaque) @@ -238,6 +256,11 @@ static void input_linux_event_mouse(void *opaque) break; } + /* only send event to guest when grab is active */ + if (!il->grab_active) { + continue; + } + switch (event.type) { case EV_KEY: switch (event.code) { @@ -292,6 +315,8 @@ int input_linux_init(void *opaque, QemuOpts *opts, Error **errp) int rc, ver; il->evdev = qemu_opt_get(opts, "evdev"); + il->grab_all = qemu_opt_get_bool(opts, "grab-all", false); + if (!il->evdev) { error_setg(errp, "no input device specified"); goto err_free; @@ -328,6 +353,7 @@ int input_linux_init(void *opaque, QemuOpts *opts, Error **errp) goto err_close; } input_linux_toggle_grab(il); + QTAILQ_INSERT_TAIL(&inputs, il, next); return 0; err_close: @@ -345,6 +371,9 @@ static QemuOptsList qemu_input_linux_opts = { { .name = "evdev", .type = QEMU_OPT_STRING, + },{ + .name = "grab-all", + .type = QEMU_OPT_BOOL, }, { /* end of list */ } }, |