1 /*
2 * Copyright 2007-2008 Peter Hutterer
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Peter Hutterer, University of South Australia, NICTA
24 */
25
26 /***********************************************************************
27 *
28 * Request to Warp the pointer location of an extension input device.
29 *
30 */
31
32 #ifdef HAVE_DIX_CONFIG_H
33 #include <dix-config.h>
34 #endif
35
36 #include <X11/X.h> /* for inputstr.h */
37 #include <X11/Xproto.h> /* Request macro */
38 #include "inputstr.h" /* DeviceIntPtr */
39 #include "windowstr.h" /* window structure */
40 #include "scrnintstr.h" /* screen structure */
41 #include <X11/extensions/XI.h>
42 #include <X11/extensions/XI2proto.h>
43 #include "extnsionst.h"
44 #include "exevents.h"
45 #include "exglobals.h"
46 #include "mipointer.h" /* for miPointerUpdateSprite */
47
48 #include "xiwarppointer.h"
49 /***********************************************************************
50 *
51 * This procedure allows a client to warp the pointer of a device.
52 *
53 */
54
55 int _X_COLD
SProcXIWarpPointer(ClientPtr client)56 SProcXIWarpPointer(ClientPtr client)
57 {
58 REQUEST(xXIWarpPointerReq);
59 REQUEST_SIZE_MATCH(xXIWarpPointerReq);
60
61 swaps(&stuff->length);
62 swapl(&stuff->src_win);
63 swapl(&stuff->dst_win);
64 swapl(&stuff->src_x);
65 swapl(&stuff->src_y);
66 swaps(&stuff->src_width);
67 swaps(&stuff->src_height);
68 swapl(&stuff->dst_x);
69 swapl(&stuff->dst_y);
70 swaps(&stuff->deviceid);
71 return (ProcXIWarpPointer(client));
72 }
73
74 int
ProcXIWarpPointer(ClientPtr client)75 ProcXIWarpPointer(ClientPtr client)
76 {
77 int rc;
78 int x, y;
79 WindowPtr dest = NULL;
80 DeviceIntPtr pDev;
81 SpritePtr pSprite;
82 ScreenPtr newScreen;
83 int src_x, src_y;
84 int dst_x, dst_y;
85
86 REQUEST(xXIWarpPointerReq);
87 REQUEST_SIZE_MATCH(xXIWarpPointerReq);
88
89 /* FIXME: panoramix stuff is missing, look at ProcWarpPointer */
90
91 rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixWriteAccess);
92
93 if (rc != Success) {
94 client->errorValue = stuff->deviceid;
95 return rc;
96 }
97
98 if ((!IsMaster(pDev) && !IsFloating(pDev)) ||
99 (IsMaster(pDev) && !IsPointerDevice(pDev))) {
100 client->errorValue = stuff->deviceid;
101 return BadDevice;
102 }
103
104 if (stuff->dst_win != None) {
105 rc = dixLookupWindow(&dest, stuff->dst_win, client, DixGetAttrAccess);
106 if (rc != Success) {
107 client->errorValue = stuff->dst_win;
108 return rc;
109 }
110 }
111
112 pSprite = pDev->spriteInfo->sprite;
113 x = pSprite->hotPhys.x;
114 y = pSprite->hotPhys.y;
115
116 src_x = stuff->src_x / (double) (1 << 16);
117 src_y = stuff->src_y / (double) (1 << 16);
118 dst_x = stuff->dst_x / (double) (1 << 16);
119 dst_y = stuff->dst_y / (double) (1 << 16);
120
121 if (stuff->src_win != None) {
122 int winX, winY;
123 WindowPtr src;
124
125 rc = dixLookupWindow(&src, stuff->src_win, client, DixGetAttrAccess);
126 if (rc != Success) {
127 client->errorValue = stuff->src_win;
128 return rc;
129 }
130
131 winX = src->drawable.x;
132 winY = src->drawable.y;
133 if (src->drawable.pScreen != pSprite->hotPhys.pScreen ||
134 x < winX + src_x ||
135 y < winY + src_y ||
136 (stuff->src_width != 0 &&
137 winX + src_x + (int) stuff->src_width < 0) ||
138 (stuff->src_height != 0 &&
139 winY + src_y + (int) stuff->src_height < y) ||
140 !PointInWindowIsVisible(src, x, y))
141 return Success;
142 }
143
144 if (dest) {
145 x = dest->drawable.x;
146 y = dest->drawable.y;
147 newScreen = dest->drawable.pScreen;
148 }
149 else
150 newScreen = pSprite->hotPhys.pScreen;
151
152 x += dst_x;
153 y += dst_y;
154
155 if (x < 0)
156 x = 0;
157 else if (x > newScreen->width)
158 x = newScreen->width - 1;
159
160 if (y < 0)
161 y = 0;
162 else if (y > newScreen->height)
163 y = newScreen->height - 1;
164
165 if (newScreen == pSprite->hotPhys.pScreen) {
166 if (x < pSprite->physLimits.x1)
167 x = pSprite->physLimits.x1;
168 else if (x >= pSprite->physLimits.x2)
169 x = pSprite->physLimits.x2 - 1;
170
171 if (y < pSprite->physLimits.y1)
172 y = pSprite->physLimits.y1;
173 else if (y >= pSprite->physLimits.y2)
174 y = pSprite->physLimits.y2 - 1;
175
176 if (pSprite->hotShape)
177 ConfineToShape(pDev, pSprite->hotShape, &x, &y);
178 (*newScreen->SetCursorPosition) (pDev, newScreen, x, y, TRUE);
179 }
180 else if (!PointerConfinedToScreen(pDev)) {
181 NewCurrentScreen(pDev, newScreen, x, y);
182 }
183
184 /* if we don't update the device, we get a jump next time it moves */
185 pDev->last.valuators[0] = x;
186 pDev->last.valuators[1] = y;
187 miPointerUpdateSprite(pDev);
188
189 if (*newScreen->CursorWarpedTo)
190 (*newScreen->CursorWarpedTo) (pDev, newScreen, client,
191 dest, pSprite, x, y);
192
193 /* FIXME: XWarpPointer is supposed to generate an event. It doesn't do it
194 here though. */
195 return Success;
196 }
197