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