diff options
Diffstat (limited to 'xorg-server/Xi/exevents.c')
| -rw-r--r-- | xorg-server/Xi/exevents.c | 951 |
1 files changed, 933 insertions, 18 deletions
diff --git a/xorg-server/Xi/exevents.c b/xorg-server/Xi/exevents.c index 1c8633a8f..6363192b2 100644 --- a/xorg-server/Xi/exevents.c +++ b/xorg-server/Xi/exevents.c @@ -44,6 +44,32 @@ SOFTWARE. ********************************************************/ +/* + * Copyright © 2010 Collabora Ltd. + * Copyright © 2011 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Daniel Stone <daniel@fooishbar.org> + */ + /******************************************************************** * * Routines to register and initialize extension input devices. @@ -80,6 +106,7 @@ SOFTWARE. #include "eventconvert.h" #include "eventstr.h" #include "inpututils.h" +#include "mi.h" #include <X11/extensions/XKBproto.h> #include "xkbsrv.h" @@ -130,6 +157,21 @@ IsPointerEvent(InternalEvent* event) return FALSE; } +Bool +IsTouchEvent(InternalEvent* event) +{ + switch(event->any.type) + { + case ET_TouchBegin: + case ET_TouchUpdate: + case ET_TouchEnd: + return TRUE; + default: + break; + } + return FALSE; +} + /** * @return the device matching the deviceid of the device set in the event, or * NULL if the event is not an XInput event. @@ -494,6 +536,8 @@ DeepCopyKeyboardClasses(DeviceIntPtr from, DeviceIntPtr to) } +/* FIXME: this should really be shared with the InitValuatorAxisClassRec and + * similar */ static void DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to) { @@ -626,6 +670,41 @@ DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to) classes->proximity = to->proximity; to->proximity = NULL; } + + if (from->touch) + { + TouchPointInfoPtr tmp; + if (!to->touch) + { + classes = to->unused_classes; + to->touch = classes->touch; + if (!to->touch) + { + int i; + to->touch = calloc(1, sizeof(TouchClassRec)); + if (!to->touch) + FatalError("[Xi] no memory for class shift.\n"); + to->touch->num_touches = from->touch->num_touches; + to->touch->touches = calloc(to->touch->num_touches, + sizeof(TouchPointInfoRec)); + for (i = 0; i < to->touch->num_touches; i++) + TouchInitTouchPoint(to->touch, to->valuator, i); + if (!to->touch) + FatalError("[Xi] no memory for class shift.\n"); + } else + classes->touch = NULL; + } + tmp = to->touch->touches; + memcpy(to->touch, from->touch, sizeof(TouchClassRec)); + to->touch->touches = tmp; + to->touch->sourceid = from->id; + } else if (to->touch) + { + ClassesPtr classes; + classes = to->unused_classes; + classes->touch = to->touch; + to->touch = NULL; + } } /** @@ -773,6 +852,7 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event) KeyClassPtr k = NULL; ButtonClassPtr b = NULL; ValuatorClassPtr v = NULL; + TouchClassPtr t = NULL; /* This event is always the first we get, before the actual events with * the data. However, the way how the DDX is set up, "device" will @@ -790,6 +870,9 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event) case ET_KeyRelease: case ET_ProximityIn: case ET_ProximityOut: + case ET_TouchBegin: + case ET_TouchUpdate: + case ET_TouchEnd: break; default: /* other events don't update the device */ @@ -799,6 +882,7 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event) k = device->key; v = device->valuator; b = device->button; + t = device->touch; key = event->detail.key; @@ -900,17 +984,602 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event) device->proximity->in_proximity = TRUE; else if (event->type == ET_ProximityOut) device->proximity->in_proximity = FALSE; + else if (event->type == ET_TouchBegin) { + BUG_WARN(!b || !v); + BUG_WARN(!t); + + if (!b || !t || !b->map[key]) + return DONT_PROCESS; + + if (!(event->flags & TOUCH_POINTER_EMULATED) || + (event->flags & TOUCH_REPLAYING)) + return DONT_PROCESS; + + IncreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, &t->state); + UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask); + } else if (event->type == ET_TouchEnd) { + BUG_WARN(!b || !v); + BUG_WARN(!t); + + if (!b || !t || t->buttonsDown <= 0 || !b->map[key]) + return DONT_PROCESS; + + if (!(event->flags & TOUCH_POINTER_EMULATED)) + return DONT_PROCESS; + if (!(event->flags & TOUCH_END)) + return DONT_PROCESS; + + DecreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, &t->state); + UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask); + } return DEFAULT; } /** - * Main device event processing function. - * Called from when processing the events from the event queue. + * A client that does not have the TouchOwnership mask set may not receive a + * TouchBegin event if there is at least one grab active. * + * @return TRUE if the client selected for ownership events on the given + * window for this device, FALSE otherwise */ -void -ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device) +static inline Bool +TouchClientWantsOwnershipEvents(ClientPtr client, DeviceIntPtr dev, WindowPtr win) +{ + InputClients *iclient; + + nt_list_for_each_entry(iclient, wOtherInputMasks(win)->inputClients, next) + { + if (rClient(iclient) != client) + continue; + + return xi2mask_isset(iclient->xi2mask, dev, XI_TouchOwnership); + } + + return FALSE; +} + +static void +TouchSendOwnershipEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, int reason, XID resource) +{ + int nev, i; + InternalEvent *tel = InitEventList(GetMaximumEventsNum()); + + nev = GetTouchOwnershipEvents(tel, dev, ti, reason, resource, 0); + for (i = 0; i < nev; i++) + mieqProcessDeviceEvent(dev, tel + i, NULL); + + FreeEventList(tel, GetMaximumEventsNum()); +} + +/** + * Attempts to deliver a touch event to the given client. + */ +static Bool +DeliverOneTouchEvent(ClientPtr client, DeviceIntPtr dev, TouchPointInfoPtr ti, + GrabPtr grab, WindowPtr win, InternalEvent *ev) +{ + int err; + xEvent *xi2; + Mask filter; + Window child = DeepestSpriteWin(&ti->sprite)->drawable.id; + + /* FIXME: owner event handling */ + + /* If the client does not have the ownership mask set and is not + * the current owner of the touch, only pretend we delivered */ + if (!grab && ti->num_grabs != 0 && + !TouchClientWantsOwnershipEvents(client, dev,win)) + return TRUE; + + /* If we fail here, we're going to leave a client hanging. */ + err = EventToXI2(ev, &xi2); + if (err != Success) + FatalError("[Xi] %s: XI2 conversion failed in %s" + " (%d)\n", dev->name, __func__, err); + + FixUpEventFromWindow(&ti->sprite, xi2, win, child, FALSE); + filter = GetEventFilter(dev, xi2); + if (XaceHook(XACE_RECEIVE_ACCESS, client, win, xi2, 1) != Success) + return FALSE; + err = TryClientEvents(client, dev, xi2, 1, filter, filter, NullGrab); + free(xi2); + + /* Returning the value from TryClientEvents isn't useful, since all our + * resource-gone cleanups will update the delivery list anyway. */ + return TRUE; +} + +/** + * If the current owner has rejected the event, deliver the + * TouchOwnership/TouchBegin to the next item in the sprite stack. + */ +static void +TouchPuntToNextOwner(DeviceIntPtr dev, TouchPointInfoPtr ti, + TouchOwnershipEvent *ev) +{ + InternalEvent *tel = InitEventList(GetMaximumEventsNum()); + ValuatorMask *mask = valuator_mask_new(2); + int i, nev; + + /* Deliver the ownership */ + if (ti->listeners[0].state == LISTENER_AWAITING_OWNER) + DeliverTouchEvents(dev, ti, (InternalEvent*)ev, ti->listeners[0].listener); + else if (ti->listeners[0].state == LISTENER_AWAITING_BEGIN) + TouchEventHistoryReplay(ti, dev, ti->listeners[0].listener); + + /* If we've just removed the last grab and the touch has physically + * ended, send a TouchEnd event too and finalise the touch. */ + if (ti->num_listeners == 1 && ti->num_grabs == 0 && + ti->pending_finish) + { + int flags; + valuator_mask_set_double(mask, 0, + valuator_mask_get_double(ti->valuators, 0)); + valuator_mask_set_double(mask, 1, + valuator_mask_get_double(ti->valuators, 1)); + + flags = TOUCH_CLIENT_ID; + if (ti->emulate_pointer) + flags |= TOUCH_POINTER_EMULATED; + nev = GetTouchEvents(tel, dev, ti->client_id, XI_TouchEnd, flags, mask); + for (i = 0; i < nev; i++) + DeliverTouchEvents(dev, ti, tel + i, 0); + TouchEndTouch(dev, ti); + } + + valuator_mask_free(&mask); + FreeEventList(tel, GetMaximumEventsNum()); +} + +static void +TouchEventRejected(DeviceIntPtr sourcedev, TouchPointInfoPtr ti, + TouchOwnershipEvent *ev) +{ + InternalEvent *tel = InitEventList(GetMaximumEventsNum()); + ValuatorMask *mask = valuator_mask_new(2); + Bool was_owner = (ev->resource == ti->listeners[0].listener); + void *grab; + int nev, i; + + + /* Send a TouchEnd event to the resource being removed, but only if they + * haven't received one yet already */ + if (ti->listeners[0].state != LISTENER_HAS_END) + { + int flags; + valuator_mask_set_double(mask, 0, + valuator_mask_get_double(ti->valuators, 0)); + valuator_mask_set_double(mask, 1, + valuator_mask_get_double(ti->valuators, 1)); + + flags = TOUCH_CLIENT_ID|TOUCH_REJECT; + if (ti->emulate_pointer) + flags |= TOUCH_POINTER_EMULATED; + nev = GetTouchEvents(tel, sourcedev, ti->client_id, XI_TouchEnd, flags, mask); + for (i = 0; i < nev; i++) + DeliverTouchEvents(sourcedev, ti, tel + i, ev->resource); + } + + /* If there are no other listeners left, then don't bother sending an + * ownership change event to no-one; if the touchpoint is pending + * finish, then we can just kill it now. */ + if (ti->num_listeners == 1) + { + if (ti->pending_finish) + TouchEndTouch(sourcedev, ti); + goto out; + } + + /* Remove the resource from the listener list, updating + * ti->num_listeners, as well as ti->num_grabs if it was a grab. */ + if (TouchRemoveListener(ti, ev->resource)) + { + if (dixLookupResourceByType(&grab, ev->resource, RT_PASSIVEGRAB, + serverClient, DixGetAttrAccess) == Success) + ti->num_grabs--; + } + + /* If the current owner was removed, deliver the TouchOwnership or TouchBegin + event to the new owner. */ + if (was_owner) + TouchPuntToNextOwner(sourcedev, ti, ev); + +out: + FreeEventList(tel, GetMaximumEventsNum()); + valuator_mask_free(&mask); +} + +/** + * Processes a TouchOwnership event, indicating a grab has accepted the touch + * it currently owns, or a grab or selection has been removed. Will generate + * and send TouchEnd events to all clients removed from the delivery list, as + * well as possibly sending the new TouchOwnership event. May end the + * touchpoint if it is pending finish. + */ +static void +ProcessTouchOwnershipEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, + TouchOwnershipEvent *ev) +{ + + if (ev->reason == XIRejectTouch) + TouchEventRejected(dev, ti, ev); + else if (ev->reason == XIAcceptTouch) { + int flags; + int nev, i; + ValuatorMask *mask; + + InternalEvent *tel = InitEventList(GetMaximumEventsNum()); + + mask = valuator_mask_new(dev->valuator->numAxes); + valuator_mask_set_double(mask, 0, + valuator_mask_get_double(ti->valuators, 0)); + valuator_mask_set_double(mask, 1, + valuator_mask_get_double(ti->valuators, 1)); + + /* FIXME: what about early acceptance? a client may accept before it + * owns the touch. */ + + /* The touch owner has accepted the touch. Send TouchEnd events to + * everyone else, and truncate the list of listeners. */ + flags = TOUCH_ACCEPT|TOUCH_CLIENT_ID; + if (ti->emulate_pointer) + flags |= TOUCH_POINTER_EMULATED; + nev = GetTouchEvents(tel, dev, ti->client_id, XI_TouchEnd, + flags, mask); + for (i = 0; i < nev; i++) + DeliverTouchEvents(dev, ti, tel + i, 0); + + FreeEventList(tel, GetMaximumEventsNum()); + valuator_mask_free(&mask); + + while (ti->num_listeners > 1) + TouchRemoveListener(ti, ti->listeners[1].listener); + /* Owner accepted after receiving end */ + if (ti->listeners[0].state == LISTENER_HAS_END) + TouchEndTouch(dev, ti); + } else { /* this is the very first ownership event for a grab */ + DeliverTouchEvents(dev, ti, (InternalEvent*)ev, ev->resource); + } +} + +/** + * Copy the event's valuator information into the touchpoint, we may need + * this for emulated TouchEnd events. + */ +static void +TouchCopyValuatorData(DeviceEvent *ev, TouchPointInfoPtr ti) +{ + int i; + for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++) + if (BitIsOn(ev->valuators.mask, i)) + valuator_mask_set_double(ti->valuators, i, ev->valuators.data[i]); +} + +/** + * Given a touch event and a potential listener, retrieve info needed for + * processing the event. + * + * @param dev The device generating the touch event. + * @param ti The touch point info record for the touch event. + * @param ev The touch event to process. + * @param listener The touch event listener that may receive the touch event. + * @param[out] client The client that should receive the touch event. + * @param[out] win The window to deliver the event on. + * @param[out] grab The grab to deliver the event through, if any. + * @param[out] mask The XI 2.x event mask of the grab or selection, if any. + * @return TRUE if an event should be delivered to the listener, FALSE + * otherwise. + */ +static Bool +RetrieveTouchDeliveryData(DeviceIntPtr dev, TouchPointInfoPtr ti, + InternalEvent *ev, TouchListener *listener, + ClientPtr *client, WindowPtr *win, GrabPtr *grab, + XI2Mask **mask) +{ + int rc; + InputClients *iclients = NULL; + + if (listener->type == LISTENER_GRAB || + listener->type == LISTENER_POINTER_GRAB) + { + rc = dixLookupResourceByType((pointer*)grab, listener->listener, + RT_PASSIVEGRAB, + serverClient, DixSendAccess); + if (rc != Success) + { + /* the grab doesn't exist but we have a grabbing listener - this + * is an implicit/active grab */ + rc = dixLookupClient(client, listener->listener, serverClient, DixSendAccess); + if (rc != Success) + return FALSE; + + *grab = dev->deviceGrab.grab; + if (!*grab) + return FALSE; + } + + *client = rClient(*grab); + *win = (*grab)->window; + *mask = (*grab)->xi2mask; + } else { + if (listener->level == CORE) + rc = dixLookupWindow(win, listener->listener, + serverClient, DixSendAccess); + else + rc = dixLookupResourceByType((pointer*)win, listener->listener, + RT_INPUTCLIENT, + serverClient, DixSendAccess); + if (rc != Success) + return FALSE; + + + if (listener->level == XI2) + { + int evtype; + if (ti->emulate_pointer && listener->type == LISTENER_POINTER_REGULAR) + evtype = GetXI2Type(TouchGetPointerEventType(ev)); + else + evtype = GetXI2Type(ev->any.type); + + nt_list_for_each_entry(iclients, wOtherInputMasks(*win)->inputClients, next) + if (xi2mask_isset(iclients->xi2mask, dev, evtype)) + break; + BUG_WARN(!iclients); + if (!iclients) + return FALSE; + } else if (listener->level == XI) + { + int xi_type = GetXIType(TouchGetPointerEventType(ev)); + Mask xi_filter = event_get_filter_from_type(dev, xi_type); + nt_list_for_each_entry(iclients, wOtherInputMasks(*win)->inputClients, next) + if (iclients->mask[dev->id] & xi_filter) + break; + BUG_WARN(!iclients); + if (!iclients) + return FALSE; + } else + { + int coretype = GetCoreType(TouchGetPointerEventType(ev)); + Mask core_filter = event_get_filter_from_type(dev, coretype); + + /* all others */ + nt_list_for_each_entry(iclients, (InputClients*)wOtherClients(*win), next) + if (iclients->mask[XIAllDevices] & core_filter) + break; + /* if owner selected, iclients is NULL */ + } + + *client = iclients ? rClient(iclients) : wClient(*win); + *mask = iclients ? iclients->xi2mask : NULL; + *grab = NULL; + } + + return TRUE; +} + +static int +DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, + TouchListener *listener, ClientPtr client, + WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) +{ + InternalEvent motion, button; + InternalEvent *ptrev = &motion; + int nevents; + DeviceIntPtr kbd; + + /* We don't deliver pointer events to non-owners */ + if (!TouchResourceIsOwner(ti, listener->listener)) + return Success; + + nevents = TouchConvertToPointerEvent(ev, &motion, &button); + BUG_WARN(nevents == 0); + if (nevents == 0) + return BadValue; + + if (nevents > 1) + ptrev = &button; + + kbd = GetMaster(dev, KEYBOARD_OR_FLOAT); + event_set_state(dev, kbd, &ptrev->device_event); + ptrev->device_event.corestate = event_get_corestate(dev, kbd); + + if (grab) + { + /* this side-steps the usual activation mechansims, but... */ + if (ev->any.type == ET_TouchBegin && !dev->deviceGrab.grab) + ActivatePassiveGrab(dev, grab, ptrev, ev); /* also delivers the event */ + else { + int deliveries = 0; + /* 'grab' is the passive grab, but if the grab isn't active, + * don't deliver */ + if (!dev->deviceGrab.grab) + return Success; + + if (grab->ownerEvents) + { + WindowPtr focus = NullWindow; + WindowPtr win = dev->spriteInfo->sprite->win; + deliveries = DeliverDeviceEvents(win, ptrev, grab, focus, dev); + } + + if (!deliveries) + DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype); + + if (ev->any.type == ET_TouchEnd && + !dev->button->buttonsDown && + dev->deviceGrab.fromPassiveGrab && + GrabIsPointerGrab(grab)) + (*dev->deviceGrab.DeactivateGrab)(dev); + } + } else + { + GrabPtr devgrab = dev->deviceGrab.grab; + + DeliverDeviceEvents(win, ptrev, grab, win, dev); + /* FIXME: bad hack + * Implicit passive grab activated in response to this event. Store + * the event. + */ + if (!devgrab && dev->deviceGrab.grab && dev->deviceGrab.implicitGrab) + { + TouchListener *listener; + + devgrab = dev->deviceGrab.grab; + + *dev->deviceGrab.sync.event = ev->device_event; + + /* The listener array has a sequence of grabs and then one event + * selection. Implicit grab activation occurs through delivering an + * event selection. Thus, we update the last listener in the array. + */ + listener = &ti->listeners[ti->num_listeners - 1]; + listener->listener = devgrab->resource; + + if (devgrab->grabtype != XI2 || + devgrab->type != XI_TouchBegin) + listener->type = LISTENER_POINTER_GRAB; + else + listener->type = LISTENER_GRAB; + } + + } + if (ev->any.type == ET_TouchBegin) + listener->state = LISTENER_IS_OWNER; + else if (ev->any.type == ET_TouchEnd) + listener->state = LISTENER_HAS_END; + + return Success; +} + + + + +static void +DeliverEmulatedMotionEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, + InternalEvent *ev) +{ + InternalEvent motion; + + if (ti->num_listeners) + { + ClientPtr client; + WindowPtr win; + GrabPtr grab; + XI2Mask *mask; + + if (ti->listeners[0].type != LISTENER_POINTER_REGULAR || + ti->listeners[0].type != LISTENER_POINTER_GRAB) + return; + + motion = *ev; + motion.any.type = ET_TouchUpdate; + motion.device_event.detail.button = 0; + + if (!RetrieveTouchDeliveryData(dev, ti, &motion, + &ti->listeners[0], &client, &win, &grab, + &mask)) + return; + + /* There may be a pointer grab on the device */ + if (!grab) + { + grab = dev->deviceGrab.grab; + if (grab) + { + win = grab->window; + mask = grab->xi2mask; + client = rClient(grab); + } + } + + DeliverTouchEmulatedEvent(dev, ti, &motion, &ti->listeners[0], client, win, grab, mask); + } else { + InternalEvent button; + int converted; + converted = TouchConvertToPointerEvent(ev, &motion, &button); + + BUG_WARN(converted == 0); + if (converted) + ProcessOtherEvent(&motion, dev); + } +} + +/** + * Processes and delivers a TouchBegin, TouchUpdate, or a + * TouchEnd event. + * + * Due to having rather different delivery semantics (see the Xi 2.2 protocol + * spec for more information), this implements its own grab and event-selection + * delivery logic. + */ +static void +ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev) +{ + TouchClassPtr t = dev->touch; + TouchPointInfoPtr ti; + uint32_t touchid; + int type = ev->any.type; + int emulate_pointer = !!(ev->device_event.flags & TOUCH_POINTER_EMULATED); + + if (!t) + return; + + if (ev->any.type == ET_TouchOwnership) + touchid = ev->touch_ownership_event.touchid; + else + touchid = ev->device_event.touchid; + + if (type == ET_TouchBegin) { + ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid, + emulate_pointer); + } else + ti = TouchFindByClientID(dev, touchid); + + if (!ti) + { + DebugF("[Xi] %s: Failed to get event %d for touchpoint %d\n", + dev->name, type, touchid); + return; + } + + + /* if emulate_pointer is set, emulate the motion event right + * here, so we can ignore it for button event emulation. TouchUpdate + * events which _only_ emulate motion just work normally */ + if (emulate_pointer && ev->any.type != ET_TouchUpdate) + DeliverEmulatedMotionEvent(dev, ti, ev); + if (emulate_pointer && IsMaster(dev)) + CheckMotion(&ev->device_event, dev); + + /* Make sure we have a valid window trace for event delivery; must be + * called after event type mutation. */ + /* FIXME: check this */ + if (!TouchEnsureSprite(dev, ti, ev)) + return; + + /* TouchOwnership events are handled separately from the rest, as they + * have more complex semantics. */ + if (ev->any.type == ET_TouchOwnership) + ProcessTouchOwnershipEvent(dev, ti, &ev->touch_ownership_event); + else + { + TouchCopyValuatorData(&ev->device_event, ti); + /* WARNING: the event type may change to TouchUpdate in + * DeliverTouchEvents if a TouchEnd was delivered to a grabbing + * owner */ + DeliverTouchEvents(dev, ti, (InternalEvent *) ev, 0); + if (ev->any.type == ET_TouchEnd) + TouchEndTouch(dev, ti); + } +} + + +/** + * Process DeviceEvents and DeviceChangedEvents. + */ +static void +ProcessDeviceEvent(InternalEvent *ev, DeviceIntPtr device) { GrabPtr grab; Bool deactivateDeviceGrab = FALSE; @@ -921,18 +1590,6 @@ ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device) DeviceIntPtr mouse = NULL, kbd = NULL; DeviceEvent *event = &ev->device_event; - verify_internal_event(ev); - - if (ev->any.type == ET_RawKeyPress || - ev->any.type == ET_RawKeyRelease || - ev->any.type == ET_RawButtonPress || - ev->any.type == ET_RawButtonRelease || - ev->any.type == ET_RawMotion) - { - DeliverRawEvent(&ev->raw_event, device); - return; - } - if (IsPointerDevice(device)) { kbd = GetMaster(device, KEYBOARD_OR_FLOAT); @@ -1046,6 +1703,204 @@ ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device) event->detail.key = key; } +/** + * Main device event processing function. + * Called from when processing the events from the event queue. + * + */ +void +ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device) +{ + verify_internal_event(ev); + + switch(ev->any.type) + { + case ET_RawKeyPress: + case ET_RawKeyRelease: + case ET_RawButtonPress: + case ET_RawButtonRelease: + case ET_RawMotion: + case ET_RawTouchBegin: + case ET_RawTouchUpdate: + case ET_RawTouchEnd: + DeliverRawEvent(&ev->raw_event, device); + break; + case ET_TouchBegin: + case ET_TouchUpdate: + case ET_TouchOwnership: + case ET_TouchEnd: + ProcessTouchEvent(ev, device); + break; + default: + ProcessDeviceEvent(ev, device); + break; + } +} + +static int +DeliverTouchBeginEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, + TouchListener *listener, ClientPtr client, + WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) +{ + enum TouchListenerState state; + int rc = Success; + Bool has_ownershipmask; + + if (listener->type == LISTENER_POINTER_REGULAR || + listener->type == LISTENER_POINTER_GRAB) + { + rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, + grab, xi2mask); + goto out; + } + + + has_ownershipmask = xi2mask_isset(xi2mask, dev, XI_TouchOwnership); + + if (TouchResourceIsOwner(ti, listener->listener) || has_ownershipmask) + rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); + if (!TouchResourceIsOwner(ti, listener->listener)) + { + if (has_ownershipmask) + state = LISTENER_AWAITING_OWNER; + else + state = LISTENER_AWAITING_BEGIN; + } else + { + if (has_ownershipmask) + TouchSendOwnershipEvent(dev, ti, 0, listener->listener); + state = LISTENER_IS_OWNER; + } + listener->state = state; + +out: + return rc; +} + +static int +DeliverTouchEndEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, + TouchListener *listener, ClientPtr client, + WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) +{ + int rc = Success; + + if (listener->type == LISTENER_POINTER_REGULAR || + listener->type == LISTENER_POINTER_GRAB) + { + rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, + grab, xi2mask); + goto out; + } + + /* Event in response to reject */ + if (ev->device_event.flags & TOUCH_REJECT) + { + if (listener->state != LISTENER_HAS_END) + rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); + listener->state = LISTENER_HAS_END; + } else if (TouchResourceIsOwner(ti, listener->listener)) + { + /* FIXME: what about early acceptance */ + if (!(ev->device_event.flags & TOUCH_ACCEPT)) + { + if (listener->state != LISTENER_HAS_END) + rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); + listener->state = LISTENER_HAS_END; + } + if (ti->num_listeners > 1 && + (ev->device_event.flags & (TOUCH_ACCEPT|TOUCH_REJECT)) == 0) + { + ev->any.type = ET_TouchUpdate; + ev->device_event.flags |= TOUCH_PENDING_END; + ti->pending_finish = TRUE; + } + } + +out: + return rc; +} + +static int +DeliverTouchEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, + TouchListener *listener, ClientPtr client, + WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) +{ + Bool has_ownershipmask = FALSE; + int rc = Success; + + if (xi2mask) + has_ownershipmask = xi2mask_isset(xi2mask, dev, XI_TouchOwnership); + + if (ev->any.type == ET_TouchOwnership) + { + ev->touch_ownership_event.deviceid = dev->id; + if (!TouchResourceIsOwner(ti, listener->listener)) + goto out; + rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); + listener->state = LISTENER_IS_OWNER; + } else + ev->device_event.deviceid = dev->id; + + if (ev->any.type == ET_TouchBegin) + { + rc = DeliverTouchBeginEvent(dev, ti, ev, listener, client, win, grab, xi2mask); + } else if (ev->any.type == ET_TouchUpdate) + { + if (listener->type == LISTENER_POINTER_REGULAR || + listener->type == LISTENER_POINTER_GRAB) + DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, grab, xi2mask); + else if (TouchResourceIsOwner(ti, listener->listener) || has_ownershipmask) + rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); + } else if (ev->any.type == ET_TouchEnd) + rc = DeliverTouchEndEvent(dev, ti, ev, listener, client, win, grab, xi2mask); + +out: + return rc; +} + +/** + * Delivers a touch events to all interested clients. For TouchBegin events, + * will update ti->listeners, ti->num_listeners, and ti->num_grabs. + * May also mutate ev (type and flags) upon successful delivery. If + * @resource is non-zero, will only attempt delivery to the owner of that + * resource. + * + * @return TRUE if the event was delivered at least once, FALSE otherwise + */ +void +DeliverTouchEvents(DeviceIntPtr dev, TouchPointInfoPtr ti, + InternalEvent *ev, XID resource) +{ + int i; + + if (ev->any.type == ET_TouchBegin && + !(ev->device_event.flags & (TOUCH_CLIENT_ID|TOUCH_REPLAYING))) + TouchSetupListeners(dev, ti, ev); + + TouchEventHistoryPush(ti, &ev->device_event); + + for (i = 0; i < ti->num_listeners; i++) + { + GrabPtr grab = NULL; + ClientPtr client; + WindowPtr win; + XI2Mask *mask; + TouchListener *listener = &ti->listeners[i]; + + if (resource && listener->listener != resource) + continue; + + if (!RetrieveTouchDeliveryData(dev, ti, ev, listener, &client, &win, + &grab, &mask)) + continue; + + DeliverTouchEvent(dev, ti, ev, listener, client, win, grab, mask); + } + + if (ti->emulate_pointer) + UpdateDeviceState(dev, &ev->device_event); +} + int InitProximityClassDeviceStruct(DeviceIntPtr dev) { @@ -1402,12 +2257,14 @@ CheckGrabValues(ClientPtr client, GrabParameters* param) } if ((param->this_device_mode != GrabModeSync) && - (param->this_device_mode != GrabModeAsync)) { + (param->this_device_mode != GrabModeAsync) && + (param->this_device_mode != XIGrabModeTouch)) { client->errorValue = param->this_device_mode; return BadValue; } if ((param->other_devices_mode != GrabModeSync) && - (param->other_devices_mode != GrabModeAsync)) { + (param->other_devices_mode != GrabModeAsync) && + (param->other_devices_mode != XIGrabModeTouch)) { client->errorValue = param->other_devices_mode; return BadValue; } @@ -1572,6 +2429,34 @@ GrabWindow(ClientPtr client, DeviceIntPtr dev, int type, return AddPassiveGrabToList(client, grab); } +/* Touch grab */ +int +GrabTouch(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr mod_dev, + GrabParameters *param, GrabMask *mask) +{ + WindowPtr pWin; + GrabPtr grab; + int rc; + + rc = CheckGrabValues(client, param); + if (rc != Success) + return rc; + + rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess); + if (rc != Success) + return rc; + rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixGrabAccess); + if (rc != Success) + return rc; + + grab = CreateGrab(client->index, dev, mod_dev, pWin, XI2, + mask, param, XI_TouchBegin, 0, NullWindow, NullCursor); + if (!grab) + return BadAlloc; + + return AddPassiveGrabToList(client, grab); +} + int SelectForWindow(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client, Mask mask, Mask exclusivemasks) @@ -1781,6 +2666,36 @@ InputClientGone(WindowPtr pWin, XID id) FatalError("client not on device event list"); } +/** + * Search for window in each touch trace for each device. Remove the window + * and all its subwindows from the trace when found. The initial window + * order is preserved. + */ +void WindowGone(WindowPtr win) +{ + DeviceIntPtr dev; + + for (dev = inputInfo.devices; dev; dev = dev->next) { + TouchClassPtr t = dev->touch; + int i; + + if (!t) + continue; + + for (i = 0; i < t->num_touches; i++) { + SpritePtr sprite = &t->touches[i].sprite; + int j; + + for (j = 0; j < sprite->spriteTraceGood; j++) { + if (sprite->spriteTrace[j] == win) { + sprite->spriteTraceGood = j; + break; + } + } + } + } +} + int SendEvent(ClientPtr client, DeviceIntPtr d, Window dest, Bool propagate, xEvent * ev, Mask mask, int count) |