247 lines
8.7 KiB
C
247 lines
8.7 KiB
C
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/*
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* Copyright © 2009 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef EVENTSTR_H
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#define EVENTSTR_H
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#include <events.h>
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/**
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* @file events.h
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* This file describes the event structures used internally by the X
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* server during event generation and event processing.
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*
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* When are internal events used?
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* Events from input devices are stored as internal events in the EQ and
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* processed as internal events until late in the processing cycle. Only then
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* do they switch to their respective wire events.
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*/
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/**
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* Event types. Used exclusively internal to the server, not visible on the
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* protocol.
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*
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* Note: Keep KeyPress to Motion aligned with the core events.
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* Keep ET_Raw* in the same order as KeyPress - Motion
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*/
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enum EventType {
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ET_KeyPress = 2,
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ET_KeyRelease,
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ET_ButtonPress,
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ET_ButtonRelease,
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ET_Motion,
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ET_Enter,
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ET_Leave,
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ET_FocusIn,
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ET_FocusOut,
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ET_ProximityIn,
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ET_ProximityOut,
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ET_DeviceChanged,
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ET_Hierarchy,
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ET_DGAEvent,
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ET_RawKeyPress,
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ET_RawKeyRelease,
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ET_RawButtonPress,
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ET_RawButtonRelease,
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ET_RawMotion,
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ET_XQuartz,
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ET_Internal = 0xFF /* First byte */
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};
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#define CHECKEVENT(ev) if (ev && ((InternalEvent*)(ev))->any.header != 0xFF) \
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FatalError("Wrong event type %d.\n", \
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((InternalEvent*)(ev))->any.header);
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/**
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* Used for ALL input device events internal in the server until
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* copied into the matching protocol event.
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*
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* Note: We only use the device id because the DeviceIntPtr may become invalid while
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* the event is in the EQ.
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*/
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struct _DeviceEvent
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{
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< One of EventType */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms */
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int deviceid; /**< Device to post this event for */
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int sourceid; /**< The physical source device */
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union {
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uint32_t button; /**< Button number */
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uint32_t key; /**< Key code */
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} detail;
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int16_t root_x; /**< Pos relative to root window in integral data */
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float root_x_frac; /**< Pos relative to root window in frac part */
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int16_t root_y; /**< Pos relative to root window in integral part */
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float root_y_frac; /**< Pos relative to root window in frac part */
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uint8_t buttons[(MAX_BUTTONS + 7)/8]; /**< Button mask */
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struct {
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uint8_t mask[(MAX_VALUATORS + 7)/8]; /**< Valuator mask */
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uint8_t mode[(MAX_VALUATORS + 7)/8]; /**< Valuator mode (Abs or Rel)*/
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uint32_t data[MAX_VALUATORS]; /**< Valuator data */
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int32_t data_frac[MAX_VALUATORS]; /**< Fractional part for data */
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} valuators;
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struct {
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uint32_t base; /**< XKB base modifiers */
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uint32_t latched; /**< XKB latched modifiers */
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uint32_t locked; /**< XKB locked modifiers */
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uint32_t effective;/**< XKB effective modifiers */
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} mods;
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struct {
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uint8_t base; /**< XKB base group */
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uint8_t latched; /**< XKB latched group */
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uint8_t locked; /**< XKB locked group */
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uint8_t effective;/**< XKB effective group */
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} group;
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Window root; /**< Root window of the event */
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int corestate; /**< Core key/button state BEFORE the event */
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int key_repeat; /**< Internally-generated key repeat event */
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};
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/* Flags used in DeviceChangedEvent to signal if the slave has changed */
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#define DEVCHANGE_SLAVE_SWITCH 0x2
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/* Flags used in DeviceChangedEvent to signal whether the event was a
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* pointer event or a keyboard event */
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#define DEVCHANGE_POINTER_EVENT 0x4
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#define DEVCHANGE_KEYBOARD_EVENT 0x8
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/* device capabilities changed */
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#define DEVCHANGE_DEVICE_CHANGE 0x10
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/**
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* Sent whenever a device's capabilities have changed.
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*/
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struct _DeviceChangedEvent
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{
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< ET_DeviceChanged */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms */
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int deviceid; /**< Device whose capabilities have changed */
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int flags; /**< Mask of ::HAS_NEW_SLAVE,
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::POINTER_EVENT, ::KEYBOARD_EVENT */
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int masterid; /**< MD when event was generated */
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int sourceid; /**< The device that caused the change */
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struct {
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int num_buttons; /**< Number of buttons */
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Atom names[MAX_BUTTONS];/**< Button names */
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} buttons;
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int num_valuators; /**< Number of axes */
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struct {
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uint32_t min; /**< Minimum value */
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uint32_t max; /**< Maximum value */
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/* FIXME: frac parts of min/max */
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uint32_t resolution; /**< Resolution counts/m */
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uint8_t mode; /**< Relative or Absolute */
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Atom name; /**< Axis name */
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} valuators[MAX_VALUATORS];
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struct {
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int min_keycode;
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int max_keycode;
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} keys;
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};
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#if XFreeXDGA
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/**
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* DGAEvent, used by DGA to intercept and emulate input events.
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*/
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struct _DGAEvent
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{
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< ET_DGAEvent */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms */
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int subtype; /**< KeyPress, KeyRelease, ButtonPress,
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ButtonRelease, MotionNotify */
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int detail; /**< Relative x coordinate */
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int dx; /**< Relative x coordinate */
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int dy; /**< Relative y coordinate */
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int screen; /**< Screen number this event applies to */
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uint16_t state; /**< Core modifier/button state */
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};
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#endif
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/**
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* Raw event, contains the data as posted by the device.
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*/
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struct _RawDeviceEvent
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{
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< ET_Raw */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms */
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int deviceid; /**< Device to post this event for */
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int sourceid; /**< The physical source device */
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union {
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uint32_t button; /**< Button number */
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uint32_t key; /**< Key code */
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} detail;
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struct {
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uint8_t mask[(MAX_VALUATORS + 7)/8]; /**< Valuator mask */
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int32_t data[MAX_VALUATORS]; /**< Valuator data */
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int32_t data_frac[MAX_VALUATORS]; /**< Fractional part for data */
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int32_t data_raw[MAX_VALUATORS]; /**< Valuator data as posted */
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int32_t data_raw_frac[MAX_VALUATORS];/**< Fractional part for data_raw */
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} valuators;
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};
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#ifdef XQUARTZ
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#define XQUARTZ_EVENT_MAXARGS 5
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struct _XQuartzEvent {
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< Always ET_XQuartz */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms. */
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int subtype; /**< Subtype defined by XQuartz DDX */
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uint32_t data[XQUARTZ_EVENT_MAXARGS]; /**< Up to 5 32bit values passed to handler */
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};
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#endif
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/**
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* Event type used inside the X server for input event
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* processing.
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*/
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union _InternalEvent {
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struct {
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unsigned char header; /**< Always ET_Internal */
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enum EventType type; /**< One of ET_* */
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int length; /**< Length in bytes */
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Time time; /**< Time in ms. */
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} any;
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DeviceEvent device_event;
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DeviceChangedEvent changed_event;
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#if XFreeXDGA
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DGAEvent dga_event;
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#endif
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RawDeviceEvent raw_event;
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#ifdef XQUARTZ
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XQuartzEvent xquartz_event;
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#endif
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};
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#endif
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