Annotation of libwww/Library/src/HTAlert.c, revision 2.48
2.18 frystyk 1: /* HTAlert.c
2.39 frystyk 2: ** DIALOG MANAGER
2.18 frystyk 3: **
2.23 frystyk 4: ** (c) COPYRIGHT MIT 1995.
2.18 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
1.1 timbl 6: **
7: ** REPLACE THIS MODULE with a GUI version in a GUI environment!
8: **
9: ** History:
10: ** Jun 92 Created May 1992 By C.T. Barker
11: ** Feb 93 Simplified, portablised TBL
2.8 luotonen 12: ** Sep 93 Corrected 3 bugs in HTConfirm() :-( AL
2.39 frystyk 13: ** Nov 95 Rewritten using callbacks HFN
1.1 timbl 14: */
15:
2.20 frystyk 16: /* Library include files */
2.29 frystyk 17: #include "WWWLib.h"
2.21 frystyk 18: #include "HTError.h" /* Implemented here */
19: #include "HTAlert.h" /* Implemented here */
1.1 timbl 20:
2.39 frystyk 21: typedef struct _HTAlert {
22: HTAlertCallback * cbf;
23: HTAlertOpcode opcode;
24: } HTAlert;
25:
26: struct _HTAlertPar {
27: char * message;
28: char * secret;
29: void * output;
30: };
2.28 frystyk 31:
2.25 frystyk 32: PRIVATE BOOL HTInteractive=YES; /* Any prompts from the Library? */
1.1 timbl 33:
2.39 frystyk 34: PRIVATE HTList * HTMessages = NULL; /* Global list of alert functions */
35:
2.21 frystyk 36: /* ------------------------------------------------------------------------- */
2.25 frystyk 37:
2.39 frystyk 38: /*
39: ** All messaging can be turned on or off as you like
40: */
41: PUBLIC void HTAlert_setInteractive (BOOL interactive)
2.25 frystyk 42: {
43: HTInteractive = interactive;
44: }
45:
2.39 frystyk 46: PUBLIC BOOL HTAlert_interactive (void)
2.25 frystyk 47: {
48: return HTInteractive;
49: }
2.21 frystyk 50:
2.39 frystyk 51: /* HTAlertCall_add
52: ** ---------------
53: ** Register a call back function that is to be called when generating
54: ** messages, dialog, prompts, progress reports etc.
55: **
56: ** The opcode signifies which call back function to call depending of the
57: ** type of the message. Opcode can be one of the enumerations defined
58: ** by HTAlertOpcode.
59: */
60: PUBLIC BOOL HTAlertCall_add (HTList * list, HTAlertCallback * cbf,
61: HTAlertOpcode opcode)
62: {
63: if (WWWTRACE)
2.45 eric 64: HTTrace("Alert Add... HTAlertCallback %p\n", (void *) cbf);
2.39 frystyk 65: if (list && cbf) {
2.44 frystyk 66: HTAlert *me;
67: if ((me = (HTAlert *) HT_CALLOC(1, sizeof(HTAlert))) == NULL)
68: HT_OUTOFMEM("HTAlertCall_add");
2.39 frystyk 69: me->cbf = cbf;
70: me->opcode = opcode;
71: return HTList_addObject(list, (void *) me);
72: }
73: return NO;
74: }
75:
76: /* HTAlertCall_delete
77: ** ------------------
78: ** Unregister a call back function from a list
79: */
80: PUBLIC BOOL HTAlertCall_delete (HTList * list, HTAlertCallback *cbf)
81: {
82: if (WWWTRACE)
2.45 eric 83: HTTrace("Call delete HTAlertCallback %p\n", (void *) cbf);
2.39 frystyk 84: if (list && cbf) {
85: HTList *cur = list;
86: HTAlert *pres;
87: while ((pres = (HTAlert *) HTList_nextObject(cur))) {
88: if (pres->cbf == cbf) {
89: HTList_removeObject(list, (void *) pres);
2.44 frystyk 90: HT_FREE(pres);
2.39 frystyk 91: return YES;
92: }
93: }
94: }
95: return NO;
96: }
2.28 frystyk 97:
2.39 frystyk 98: /* HTAlertCall_deleteAll
99: ** ---------------------
100: ** Unregisters all call back functions
101: */
102: PUBLIC BOOL HTAlertCall_deleteAll (HTList * list)
103: {
104: if (WWWTRACE)
2.45 eric 105: HTTrace("Call delete All callback functions\n");
2.39 frystyk 106: if (list) {
107: HTList *cur = list;
108: HTAlert *pres;
109: while ((pres = (HTAlert *) HTList_nextObject(cur))) {
110: HTList_removeObject(list, (void *) pres);
2.44 frystyk 111: HT_FREE(pres);
2.39 frystyk 112: }
113: HTList_delete(list);
114: return YES;
2.28 frystyk 115: }
2.39 frystyk 116: return NO;
117: }
118:
119: /* HTAlertCall_find
120: ** ----------------
121: ** Finds a callback function corresponding to the opcode. If none has
122: ** been registered then NULL is returned.
123: */
124: PUBLIC HTAlertCallback * HTAlertCall_find (HTList * list, HTAlertOpcode opcode)
125: {
126: if (list && HTInteractive) {
127: HTAlert * pres;
128: while ((pres = (HTAlert *) HTList_nextObject(list)) != NULL) {
129: if (pres->opcode & opcode)
130: return pres->cbf;
2.28 frystyk 131: }
2.39 frystyk 132: if (WWWTRACE)
2.45 eric 133: HTTrace("Alert Find.. No entry found for opcode %d\n",opcode);
2.28 frystyk 134: }
2.39 frystyk 135: return NULL;
2.21 frystyk 136: }
137:
2.39 frystyk 138: /*
139: ** Global List of Alert functions. list can be NULL
140: */
141: PUBLIC void HTAlert_setGlobal (HTList * list)
142: {
143: HTMessages = list;
144: }
2.21 frystyk 145:
2.39 frystyk 146: PUBLIC HTList * HTAlert_global (void)
1.1 timbl 147: {
2.39 frystyk 148: return HTMessages;
1.1 timbl 149: }
150:
2.39 frystyk 151: PUBLIC BOOL HTAlert_add (HTAlertCallback * cbf, HTAlertOpcode opcode)
1.1 timbl 152: {
2.39 frystyk 153: if (!HTMessages) HTMessages = HTList_new();
154: return HTAlertCall_add(HTMessages, cbf, opcode);
1.1 timbl 155: }
156:
2.42 frystyk 157: PUBLIC BOOL HTAlert_delete (HTAlertCallback * cbf)
158: {
159: if (!HTMessages) HTMessages = HTList_new();
160: return HTAlertCall_delete(HTMessages, cbf);
161: }
162:
2.39 frystyk 163: /* HTAlert_find
164: ** ------------
165: ** Finds a global callback function corresponding to the opcode
1.1 timbl 166: */
2.39 frystyk 167: PUBLIC HTAlertCallback * HTAlert_find (HTAlertOpcode opcode)
1.1 timbl 168: {
2.39 frystyk 169: return HTAlertCall_find(HTMessages, opcode);
1.1 timbl 170: }
2.8 luotonen 171:
2.39 frystyk 172: PUBLIC HTAlertPar * HTAlert_newReply (void)
173: {
2.44 frystyk 174: HTAlertPar * me;
175: if ((me = (HTAlertPar *) HT_CALLOC(1, sizeof(HTAlertPar))) == NULL)
176: HT_OUTOFMEM("HTAlert_newReply");
2.39 frystyk 177: return me;
178: }
2.8 luotonen 179:
2.39 frystyk 180: /* HTAlert_deleteReply
181: ** -------------------
182: ** Delete reply structure but don't touch the replies themselves.
2.8 luotonen 183: */
2.39 frystyk 184: PUBLIC void HTAlert_deleteReply (HTAlertPar * old)
2.8 luotonen 185: {
2.48 ! frystyk 186: HT_FREE(old);
2.11 luotonen 187: }
188:
2.39 frystyk 189: PUBLIC char * HTAlert_replyMessage (HTAlertPar * me)
190: {
191: return me ? me->message : NULL;
192: }
2.11 luotonen 193:
2.47 frystyk 194: PUBLIC BOOL HTAlert_setReplyMessage (HTAlertPar * me, const char * message)
2.11 luotonen 195: {
2.39 frystyk 196: if (me && message) {
197: StrAllocCopy(me->message, message);
198: return YES;
199: }
200: return NO;
2.8 luotonen 201: }
202:
2.43 frystyk 203: PUBLIC BOOL HTAlert_assignReplyMessage (HTAlertPar * me, char * message)
204: {
205: if (me) me->message = message;
206: return YES;
207: }
208:
2.39 frystyk 209: PUBLIC char * HTAlert_replySecret (HTAlertPar * me)
210: {
211: return me ? me->secret : NULL;
212: }
2.21 frystyk 213:
2.47 frystyk 214: PUBLIC BOOL HTAlert_setReplySecret (HTAlertPar * me, const char * secret)
2.21 frystyk 215: {
2.39 frystyk 216: if (me && secret) {
217: StrAllocCopy(me->secret, secret);
218: return YES;
219: }
220: return NO;
221: }
2.21 frystyk 222:
2.39 frystyk 223: PUBLIC void * HTAlert_replyOutput (HTAlertPar * me)
224: {
225: return me ? me->output : NULL;
226: }
2.21 frystyk 227:
2.39 frystyk 228: PUBLIC BOOL HTAlert_setReplyOutput (HTAlertPar * me, void * output)
229: {
230: if (me) {
231: me->output = output;
232: return YES;
2.21 frystyk 233: }
2.39 frystyk 234: return NO;
2.21 frystyk 235: }
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