Annotation of libwww/Library/src/HTIcons.c, revision 2.7
2.6 frystyk 1: /* HTIcon.c
2: ** ICON MANAGEMENT
3: **
4: ** (c) COPYRIGHT CERN 1994.
5: ** Please first read the full copyright statement in the file COPYRIGH.
2.1 frystyk 6: **
7: ** This module contains the functions for initializing, adding
8: ** and selecting the icon for local directory listings, FTP and Gopher.
9: **
10: ** History:
11: ** Mar 94 Written by Ari Luotonen, luotonen@ptsun00.cern.ch
12: **
13: */
14:
2.7 ! roeber 15: #include "sysdep.h"
! 16:
2.1 frystyk 17: /* Library include files */
18: #include "HTMLPDTD.h"
19: #include "HTUtils.h"
20: #include "HTAnchor.h"
21: #include "HTParse.h"
22: #include "HTFile.h"
23: #include "HTFormat.h"
24: #include "HTChunk.h"
25: #include "HTIcons.h" /* Implemented here */
2.5 duns 26:
2.1 frystyk 27: /* Globals */
28: PUBLIC BOOL HTDirShowBrackets = YES;
29: PUBLIC HTIconNode * icon_unknown = NULL; /* Unknown file type */
30: PUBLIC HTIconNode * icon_blank = NULL; /* Blank icon in heading */
31: PUBLIC HTIconNode * icon_parent = NULL; /* Parent directory icon */
32: PUBLIC HTIconNode * icon_dir = NULL; /* Directory icon */
33:
34: /* Type definitions and global variables etc. local to this module */
35: PRIVATE HTList * icons = NULL;
36: PRIVATE int alt_len = 0; /* Longest ALT text */
37:
2.2 luotonen 38: /*
39: * Global variable for the AddHref nodes
40: * AddHref URL suff1 suff2 ...
41: */
42: PRIVATE HTList * hrefs = NULL;
43:
44:
2.1 frystyk 45: /* ------------------------------------------------------------------------- */
46:
47: PRIVATE void alt_resize ARGS1(char *, alt)
48: {
49: if (alt) {
50: int len = strlen(alt);
51: if (len > alt_len) alt_len = len;
52: }
53: }
54:
55:
56: PUBLIC char * HTIcon_alt_string ARGS2(char *, alt,
57: BOOL, brackets)
58: {
59: static char * ret = NULL;
60: char * p = NULL;
61: int len = alt ? strlen(alt) : 0;
62:
63: if (ret) free(ret); /* From previous call */
64: p = ret = (char*)malloc(alt_len + 3);
65: if (!ret) outofmem(__FILE__, "HTIcon_alt_string");
66:
67: if (HTDirShowBrackets)
68: *p++ = brackets ? '[' : ' ';
69: if (alt) strcpy(p,alt);
70: p += len;
71: while (len++ < alt_len) *p++=' ';
72: if (HTDirShowBrackets)
73: *p++ = brackets ? ']' : ' ';
74: *p = 0;
75:
76: return ret;
77: }
78:
79:
80: /*
81: ** HTAddIcon(url, alt, type_templ) adds icon:
82: **
83: ** <IMG SRC="url" ALT="[alt]">
84: **
85: ** for files for which content-type or content-encoding matches
86: ** type_templ. If type_templ contains a slash, it is taken to be
87: ** a content-type template. Otherwise, it is a content-encoding
88: ** template.
89: */
90: PUBLIC void HTAddIcon ARGS3(char *, url,
91: char *, alt,
92: char *, type_templ)
93: {
94: HTIconNode * node;
95:
96: if (!url || !type_templ) return;
97:
98: node = (HTIconNode*)calloc(1,sizeof(HTIconNode));
99: if (!node) outofmem(__FILE__, "HTAddIcon");
100:
101: if (url) StrAllocCopy(node->icon_url, url);
102: if (alt) StrAllocCopy(node->icon_alt, alt);
103: if (type_templ) StrAllocCopy(node->type_templ, type_templ);
104:
105: if (!icons) icons = HTList_new();
106: HTList_addObject(icons, (void*)node);
107: alt_resize(alt);
108: CTRACE(stderr,
109: "AddIcon..... %s => SRC=\"%s\" ALT=\"%s\"\n",type_templ,url,
110: alt ? alt : "");
111: }
112:
113:
114: /*
2.2 luotonen 115: * Put the AddHrefs in a list. It can be used for indexing to
116: * present special filetypes through a CGI.
117: */
118: PUBLIC void HTAddHref ARGS2(char *, url,
119: char *, type_templ)
120: {
121: HTHrefNode * node;
122:
123: if (!url || !type_templ) return;
124:
125: node = (HTHrefNode*)calloc(1,sizeof(HTHrefNode));
126: if (!node) outofmem(__FILE__, "HTAddHref");
127:
128: if (url) StrAllocCopy(node->href_url, url);
129: if (type_templ) StrAllocCopy(node->type_templ, type_templ);
130:
131: if (!hrefs) hrefs = HTList_new();
132: HTList_addObject(hrefs, (void*)node);
133: CTRACE(stderr,
134: "AddHref..... %s => URL=\"%s\" \n",type_templ,url);
135: }
136:
137:
138:
139: /*
2.1 frystyk 140: ** HTAddUnknownIcon(url,alt) adds the icon used for files for which
141: ** no other icon seems appropriate (unknown type).
142: */
143: PUBLIC void HTAddUnknownIcon ARGS2(char *, url,
144: char *, alt)
145: {
146: icon_unknown = (HTIconNode*)calloc(1,sizeof(HTIconNode));
147: if (!icon_unknown) outofmem(__FILE__, "HTAddUnknownIcon");
148:
149: if (url) StrAllocCopy(icon_unknown->icon_url, url);
150: if (alt) StrAllocCopy(icon_unknown->icon_alt, alt);
151: alt_resize(alt);
152: CTRACE(stderr,"AddIcon..... UNKNOWN => SRC=\"%s\" ALT=\"%s\"\n",url,
153: alt ? alt : "");
154:
155: }
156:
157:
158: /*
159: ** HTAddBlankIcon(url,alt) adds the blank icon used in the
160: ** heading of the listing.
161: */
162: PUBLIC void HTAddBlankIcon ARGS2(char *, url,
163: char *, alt)
164: {
165: icon_blank = (HTIconNode*)calloc(1,sizeof(HTIconNode));
166: if (!icon_blank) outofmem(__FILE__, "HTAddBlankIcon");
167:
168: if (url) StrAllocCopy(icon_blank->icon_url, url);
169: if (alt) StrAllocCopy(icon_blank->icon_alt, alt);
170: alt_resize(alt);
171: CTRACE(stderr,"AddIcon..... BLANK => SRC=\"%s\" ALT=\"%s\"\n",url,
172: alt ? alt : "");
173: }
174:
175:
176: /*
177: ** HTAddParentIcon(url,alt) adds the parent directory icon.
178: */
179: PUBLIC void HTAddParentIcon ARGS2(char *, url,
180: char *, alt)
181: {
182: icon_parent = (HTIconNode*)calloc(1,sizeof(HTIconNode));
183: if (!icon_parent) outofmem(__FILE__, "HTAddBlankIcon");
184:
185: if (url) StrAllocCopy(icon_parent->icon_url, url);
186: if (alt) StrAllocCopy(icon_parent->icon_alt, alt);
187: alt_resize(alt);
188: CTRACE(stderr,"AddIcon..... PARENT => SRC=\"%s\" ALT=\"%s\"\n",url,
189: alt ? alt : "");
190: }
191:
192:
193: /*
194: ** HTAddDirIcon(url,alt) adds the directory icon.
195: */
196: PUBLIC void HTAddDirIcon ARGS2(char *, url,
197: char *, alt)
198: {
199: icon_dir = (HTIconNode*)calloc(1,sizeof(HTIconNode));
200: if (!icon_dir) outofmem(__FILE__, "HTAddBlankIcon");
201:
202: if (url) StrAllocCopy(icon_dir->icon_url, url);
203: if (alt) StrAllocCopy(icon_dir->icon_alt, alt);
204: alt_resize(alt);
205: CTRACE(stderr,
206: "AddIcon..... DIRECTORY => SRC=\"%s\" ALT=\"%s\"\n",url,
207: alt ? alt : "");
208: }
209:
210:
211: PRIVATE BOOL match ARGS2(char *, templ,
212: char *, actual)
213: {
214: static char * c1 = NULL;
215: static char * c2 = NULL;
216: char * slash1;
217: char * slash2;
218:
219: StrAllocCopy(c1,templ);
220: StrAllocCopy(c2,actual);
221:
222: slash1 = strchr(c1,'/');
223: slash2 = strchr(c2,'/');
224:
225: if (slash1 && slash2) {
226: *slash1++ = 0;
227: *slash2++ = 0;
228: return HTAA_templateMatch(c1,c2) && HTAA_templateMatch(slash1,slash2);
229: }
230: else if (!slash1 && !slash2)
231: return HTAA_templateMatch(c1,c2);
232: else
233: return NO;
234: }
235:
236:
2.4 frystyk 237: PRIVATE char * prefixed ARGS2(CONST char *, prefix,
238: char *, name)
2.1 frystyk 239: {
240: static char * ret = NULL;
241: FREE(ret); /* From previous call */
242:
243: ret = (char *)malloc(strlen(prefix) + strlen(name) + 2);
244: if (!ret) outofmem(__FILE__, "prefixed");
245:
246: strcpy(ret,prefix);
247: if (*prefix && prefix[strlen(prefix)-1] != '/')
248: strcat(ret,"/");
249: strcat(ret,name);
250: return ret;
251: }
252:
253:
2.3 timbl 254: PUBLIC void HTStdIconInit ARGS1(CONST char *, url_prefix)
2.1 frystyk 255: {
2.4 frystyk 256: CONST char * p = url_prefix ? url_prefix : "/internal-icon/";
2.1 frystyk 257:
258: HTAddBlankIcon (prefixed(p,"blank.xbm"), NULL );
259: HTAddDirIcon (prefixed(p,"directory.xbm"),"DIR" );
260: HTAddParentIcon (prefixed(p,"back.xbm"), "UP" );
261: HTAddUnknownIcon(prefixed(p,"unknown.xbm"), NULL );
262: HTAddIcon(prefixed(p,"unknown.xbm"), NULL, "*/*");
263: HTAddIcon(prefixed(p,"binary.xbm"), "BIN", "binary");
264: HTAddIcon(prefixed(p,"unknown.xbm"), NULL, "www/unknown");
265: HTAddIcon(prefixed(p,"text.xbm"), "TXT", "text/*");
266: HTAddIcon(prefixed(p,"image.xbm"), "IMG", "image/*");
267: HTAddIcon(prefixed(p,"movie.xbm"), "MOV", "video/*");
268: HTAddIcon(prefixed(p,"sound.xbm"), "AU", "audio/*");
269: HTAddIcon(prefixed(p,"tar.xbm"), "TAR", "multipart/x-tar");
270: HTAddIcon(prefixed(p,"tar.xbm"), "TAR", "multipart/x-gtar");
271: HTAddIcon(prefixed(p,"compressed.xbm"), "CMP", "x-compress");
272: HTAddIcon(prefixed(p,"compressed.xbm"), "GZP", "x-gzip");
273: HTAddIcon(prefixed(p,"index.xbm"), "IDX", "application/x-gopher-index");
274: HTAddIcon(prefixed(p,"index2.xbm"), "CSO", "application/x-gopher-cso");
275: HTAddIcon(prefixed(p,"telnet.xbm"), "TEL", "application/x-gopher-telnet");
276: HTAddIcon(prefixed(p,"unknown.xbm"), "DUP", "application/x-gopher-duplicate");
277: HTAddIcon(prefixed(p,"unknown.xbm"), "TN", "application/x-gopher-tn3270");
278: }
279:
280:
281: /* HTGetIcon()
282: ** returns the icon corresponding to content_type or content_encoding.
283: */
284: PUBLIC HTIconNode * HTGetIcon ARGS3(mode_t, mode,
285: HTFormat, content_type,
286: HTFormat, content_encoding)
287: {
288: if (!icon_unknown) icon_unknown = icon_blank;
289:
290: if ((mode & S_IFMT) == S_IFREG) {
291: char * ct = content_type ? HTAtom_name(content_type) : NULL;
292: char * ce = content_encoding ? HTAtom_name(content_encoding) : NULL;
293: HTList * cur = icons;
294: HTIconNode * node;
295:
296: while ((node = (HTIconNode*)HTList_nextObject(cur))) {
297: char * slash = strchr(node->type_templ,'/');
298: if ((ct && slash && match(node->type_templ,ct)) ||
299: (ce && !slash && HTAA_templateMatch(node->type_templ,ce))) {
300: return node;
301: }
302: }
303: } else if ((mode & S_IFMT) == S_IFDIR) {
304: return icon_dir ? icon_dir : icon_unknown;
305: } else if ((mode & S_IFMT) == S_IFLNK) {
306: return icon_dir ? icon_dir : icon_unknown; /* @@ */
307: }
308:
309: return icon_unknown;
2.2 luotonen 310: }
311:
312:
313: /*
314: * Find the URL for a given type. Called from HTDirBrw.c
315: */
316: PUBLIC HTHrefNode * HTGetHref ARGS1( char *, filename)
317: {
318: HTHrefNode * node;
319: char *c;
320:
321: HTList * cur = hrefs;
322:
323: c = strrchr(filename, '.');
324: if (c) {
325: while ((node = (HTHrefNode*)HTList_nextObject(cur))) {
326: if ((!strcmp(node->type_templ,c)) ) {
327: return node;
328: }
329: }
330: }
331: return NULL;
2.1 frystyk 332: }
333:
334: /* END OF MODULE */
335:
336:
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