dix: split out core state and event state setting into helper functions

no functional changes.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/dix/inpututils.c b/dix/inpututils.c
index 60f9fa0a8..5844daf9c 100644
--- a/dix/inpututils.c
+++ b/dix/inpututils.c
@@ -657,6 +657,45 @@ void init_device_event(DeviceEvent *event, DeviceIntPtr dev, Time ms)
     event->sourceid = dev->id;
 }
 
+int event_get_corestate(DeviceIntPtr mouse, DeviceIntPtr kbd)
+{
+    int corestate;
+    /* core state needs to be assembled BEFORE the device is updated. */
+    corestate = (kbd && kbd->key) ? XkbStateFieldFromRec(&kbd->key->xkbInfo->state) : 0;
+    corestate |= (mouse && mouse->button) ? (mouse->button->state) : 0;
+    return corestate;
+}
+
+void event_set_state(DeviceIntPtr mouse, DeviceIntPtr kbd, DeviceEvent *event)
+{
+    int i;
+
+    for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
+        if (BitIsOn(mouse->button->down, i))
+            SetBit(event->buttons, i);
+
+    if (kbd && kbd->key)
+    {
+        XkbStatePtr state;
+        /* we need the state before the event happens */
+        if (event->type == ET_KeyPress || event->type == ET_KeyRelease)
+            state = &kbd->key->xkbInfo->prev_state;
+        else
+            state = &kbd->key->xkbInfo->state;
+
+        event->mods.base = state->base_mods;
+        event->mods.latched = state->latched_mods;
+        event->mods.locked = state->locked_mods;
+        event->mods.effective = state->mods;
+
+        event->group.base = state->base_group;
+        event->group.latched = state->latched_group;
+        event->group.locked = state->locked_group;
+        event->group.effective = state->group;
+    }
+}
+
+
 Bool
 point_on_screen(ScreenPtr pScreen, int x, int y)
 {