Annotation of libwww/Library/src/HTIcons.c, revision 2.1
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:
! 33: /* ------------------------------------------------------------------------- */
! 34:
! 35: PRIVATE void alt_resize ARGS1(char *, alt)
! 36: {
! 37: if (alt) {
! 38: int len = strlen(alt);
! 39: if (len > alt_len) alt_len = len;
! 40: }
! 41: }
! 42:
! 43:
! 44: PUBLIC char * HTIcon_alt_string ARGS2(char *, alt,
! 45: BOOL, brackets)
! 46: {
! 47: static char * ret = NULL;
! 48: char * p = NULL;
! 49: int len = alt ? strlen(alt) : 0;
! 50:
! 51: if (ret) free(ret); /* From previous call */
! 52: p = ret = (char*)malloc(alt_len + 3);
! 53: if (!ret) outofmem(__FILE__, "HTIcon_alt_string");
! 54:
! 55: if (HTDirShowBrackets)
! 56: *p++ = brackets ? '[' : ' ';
! 57: if (alt) strcpy(p,alt);
! 58: p += len;
! 59: while (len++ < alt_len) *p++=' ';
! 60: if (HTDirShowBrackets)
! 61: *p++ = brackets ? ']' : ' ';
! 62: *p = 0;
! 63:
! 64: return ret;
! 65: }
! 66:
! 67:
! 68: /*
! 69: ** HTAddIcon(url, alt, type_templ) adds icon:
! 70: **
! 71: ** <IMG SRC="url" ALT="[alt]">
! 72: **
! 73: ** for files for which content-type or content-encoding matches
! 74: ** type_templ. If type_templ contains a slash, it is taken to be
! 75: ** a content-type template. Otherwise, it is a content-encoding
! 76: ** template.
! 77: */
! 78: PUBLIC void HTAddIcon ARGS3(char *, url,
! 79: char *, alt,
! 80: char *, type_templ)
! 81: {
! 82: HTIconNode * node;
! 83:
! 84: if (!url || !type_templ) return;
! 85:
! 86: node = (HTIconNode*)calloc(1,sizeof(HTIconNode));
! 87: if (!node) outofmem(__FILE__, "HTAddIcon");
! 88:
! 89: if (url) StrAllocCopy(node->icon_url, url);
! 90: if (alt) StrAllocCopy(node->icon_alt, alt);
! 91: if (type_templ) StrAllocCopy(node->type_templ, type_templ);
! 92:
! 93: if (!icons) icons = HTList_new();
! 94: HTList_addObject(icons, (void*)node);
! 95: alt_resize(alt);
! 96: CTRACE(stderr,
! 97: "AddIcon..... %s => SRC=\"%s\" ALT=\"%s\"\n",type_templ,url,
! 98: alt ? alt : "");
! 99: }
! 100:
! 101:
! 102: /*
! 103: ** HTAddUnknownIcon(url,alt) adds the icon used for files for which
! 104: ** no other icon seems appropriate (unknown type).
! 105: */
! 106: PUBLIC void HTAddUnknownIcon ARGS2(char *, url,
! 107: char *, alt)
! 108: {
! 109: icon_unknown = (HTIconNode*)calloc(1,sizeof(HTIconNode));
! 110: if (!icon_unknown) outofmem(__FILE__, "HTAddUnknownIcon");
! 111:
! 112: if (url) StrAllocCopy(icon_unknown->icon_url, url);
! 113: if (alt) StrAllocCopy(icon_unknown->icon_alt, alt);
! 114: alt_resize(alt);
! 115: CTRACE(stderr,"AddIcon..... UNKNOWN => SRC=\"%s\" ALT=\"%s\"\n",url,
! 116: alt ? alt : "");
! 117:
! 118: }
! 119:
! 120:
! 121: /*
! 122: ** HTAddBlankIcon(url,alt) adds the blank icon used in the
! 123: ** heading of the listing.
! 124: */
! 125: PUBLIC void HTAddBlankIcon ARGS2(char *, url,
! 126: char *, alt)
! 127: {
! 128: icon_blank = (HTIconNode*)calloc(1,sizeof(HTIconNode));
! 129: if (!icon_blank) outofmem(__FILE__, "HTAddBlankIcon");
! 130:
! 131: if (url) StrAllocCopy(icon_blank->icon_url, url);
! 132: if (alt) StrAllocCopy(icon_blank->icon_alt, alt);
! 133: alt_resize(alt);
! 134: CTRACE(stderr,"AddIcon..... BLANK => SRC=\"%s\" ALT=\"%s\"\n",url,
! 135: alt ? alt : "");
! 136: }
! 137:
! 138:
! 139: /*
! 140: ** HTAddParentIcon(url,alt) adds the parent directory icon.
! 141: */
! 142: PUBLIC void HTAddParentIcon ARGS2(char *, url,
! 143: char *, alt)
! 144: {
! 145: icon_parent = (HTIconNode*)calloc(1,sizeof(HTIconNode));
! 146: if (!icon_parent) outofmem(__FILE__, "HTAddBlankIcon");
! 147:
! 148: if (url) StrAllocCopy(icon_parent->icon_url, url);
! 149: if (alt) StrAllocCopy(icon_parent->icon_alt, alt);
! 150: alt_resize(alt);
! 151: CTRACE(stderr,"AddIcon..... PARENT => SRC=\"%s\" ALT=\"%s\"\n",url,
! 152: alt ? alt : "");
! 153: }
! 154:
! 155:
! 156: /*
! 157: ** HTAddDirIcon(url,alt) adds the directory icon.
! 158: */
! 159: PUBLIC void HTAddDirIcon ARGS2(char *, url,
! 160: char *, alt)
! 161: {
! 162: icon_dir = (HTIconNode*)calloc(1,sizeof(HTIconNode));
! 163: if (!icon_dir) outofmem(__FILE__, "HTAddBlankIcon");
! 164:
! 165: if (url) StrAllocCopy(icon_dir->icon_url, url);
! 166: if (alt) StrAllocCopy(icon_dir->icon_alt, alt);
! 167: alt_resize(alt);
! 168: CTRACE(stderr,
! 169: "AddIcon..... DIRECTORY => SRC=\"%s\" ALT=\"%s\"\n",url,
! 170: alt ? alt : "");
! 171: }
! 172:
! 173:
! 174: PRIVATE BOOL match ARGS2(char *, templ,
! 175: char *, actual)
! 176: {
! 177: static char * c1 = NULL;
! 178: static char * c2 = NULL;
! 179: char * slash1;
! 180: char * slash2;
! 181:
! 182: StrAllocCopy(c1,templ);
! 183: StrAllocCopy(c2,actual);
! 184:
! 185: slash1 = strchr(c1,'/');
! 186: slash2 = strchr(c2,'/');
! 187:
! 188: if (slash1 && slash2) {
! 189: *slash1++ = 0;
! 190: *slash2++ = 0;
! 191: return HTAA_templateMatch(c1,c2) && HTAA_templateMatch(slash1,slash2);
! 192: }
! 193: else if (!slash1 && !slash2)
! 194: return HTAA_templateMatch(c1,c2);
! 195: else
! 196: return NO;
! 197: }
! 198:
! 199:
! 200: PRIVATE char * prefixed ARGS2(char *, prefix,
! 201: char *, name)
! 202: {
! 203: static char * ret = NULL;
! 204: FREE(ret); /* From previous call */
! 205:
! 206: ret = (char *)malloc(strlen(prefix) + strlen(name) + 2);
! 207: if (!ret) outofmem(__FILE__, "prefixed");
! 208:
! 209: strcpy(ret,prefix);
! 210: if (*prefix && prefix[strlen(prefix)-1] != '/')
! 211: strcat(ret,"/");
! 212: strcat(ret,name);
! 213: return ret;
! 214: }
! 215:
! 216:
! 217: PUBLIC void HTStdIconInit ARGS1(char *, url_prefix)
! 218: {
! 219: char * p = url_prefix ? url_prefix : "/internal-icon/";
! 220:
! 221: HTAddBlankIcon (prefixed(p,"blank.xbm"), NULL );
! 222: HTAddDirIcon (prefixed(p,"directory.xbm"),"DIR" );
! 223: HTAddParentIcon (prefixed(p,"back.xbm"), "UP" );
! 224: HTAddUnknownIcon(prefixed(p,"unknown.xbm"), NULL );
! 225: HTAddIcon(prefixed(p,"unknown.xbm"), NULL, "*/*");
! 226: HTAddIcon(prefixed(p,"binary.xbm"), "BIN", "binary");
! 227: HTAddIcon(prefixed(p,"unknown.xbm"), NULL, "www/unknown");
! 228: HTAddIcon(prefixed(p,"text.xbm"), "TXT", "text/*");
! 229: HTAddIcon(prefixed(p,"image.xbm"), "IMG", "image/*");
! 230: HTAddIcon(prefixed(p,"movie.xbm"), "MOV", "video/*");
! 231: HTAddIcon(prefixed(p,"sound.xbm"), "AU", "audio/*");
! 232: HTAddIcon(prefixed(p,"tar.xbm"), "TAR", "multipart/x-tar");
! 233: HTAddIcon(prefixed(p,"tar.xbm"), "TAR", "multipart/x-gtar");
! 234: HTAddIcon(prefixed(p,"compressed.xbm"), "CMP", "x-compress");
! 235: HTAddIcon(prefixed(p,"compressed.xbm"), "GZP", "x-gzip");
! 236: HTAddIcon(prefixed(p,"index.xbm"), "IDX", "application/x-gopher-index");
! 237: HTAddIcon(prefixed(p,"index2.xbm"), "CSO", "application/x-gopher-cso");
! 238: HTAddIcon(prefixed(p,"telnet.xbm"), "TEL", "application/x-gopher-telnet");
! 239: HTAddIcon(prefixed(p,"unknown.xbm"), "DUP", "application/x-gopher-duplicate");
! 240: HTAddIcon(prefixed(p,"unknown.xbm"), "TN", "application/x-gopher-tn3270");
! 241: }
! 242:
! 243:
! 244: /* HTGetIcon()
! 245: ** returns the icon corresponding to content_type or content_encoding.
! 246: */
! 247: PUBLIC HTIconNode * HTGetIcon ARGS3(mode_t, mode,
! 248: HTFormat, content_type,
! 249: HTFormat, content_encoding)
! 250: {
! 251: if (!icon_unknown) icon_unknown = icon_blank;
! 252:
! 253: if ((mode & S_IFMT) == S_IFREG) {
! 254: char * ct = content_type ? HTAtom_name(content_type) : NULL;
! 255: char * ce = content_encoding ? HTAtom_name(content_encoding) : NULL;
! 256: HTList * cur = icons;
! 257: HTIconNode * node;
! 258:
! 259: while ((node = (HTIconNode*)HTList_nextObject(cur))) {
! 260: char * slash = strchr(node->type_templ,'/');
! 261: if ((ct && slash && match(node->type_templ,ct)) ||
! 262: (ce && !slash && HTAA_templateMatch(node->type_templ,ce))) {
! 263: return node;
! 264: }
! 265: }
! 266: } else if ((mode & S_IFMT) == S_IFDIR) {
! 267: return icon_dir ? icon_dir : icon_unknown;
! 268: } else if ((mode & S_IFMT) == S_IFLNK) {
! 269: return icon_dir ? icon_dir : icon_unknown; /* @@ */
! 270: }
! 271:
! 272: return icon_unknown;
! 273: }
! 274:
! 275: /* END OF MODULE */
! 276:
! 277:
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