1 | /**********************************************************************
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2 | *
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3 | * vlistbrowserclass.cpp --
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 | #include "vlistbrowserclass.h"
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27 | #include <assert.h>
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28 | #include "OIDtools.h"
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29 |
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30 | vlistbrowserclass::vlistbrowserclass () {
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31 | }
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32 |
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33 | vlistbrowserclass::~vlistbrowserclass () {
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34 | }
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35 |
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36 | // returns the name that specifies the browserclass type
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37 | text_t vlistbrowserclass::get_browser_name () {
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38 | return "VList";
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39 | }
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40 |
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41 | void vlistbrowserclass::load_metadata_defaults (text_tset &metadata) {
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42 | metadata.insert ("haschildren");
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43 | metadata.insert ("doctype");
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44 | }
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45 |
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46 | text_t vlistbrowserclass::get_default_formatstring () {
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47 | return "<td valign=top>[link][icon][/link]</td>"
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48 | "<td valign=top>[srclink][srcicon][/srclink]</td>"
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49 | "<td valign=top>[highlight]{Or}{[Title],Untitled}[/highlight]"
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50 | "{If}{[Source],<br><i>([Source])</i>}</td>";
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51 | }
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52 |
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53 | int vlistbrowserclass::output_section_group (ResultDocInfo_t §ion, cgiargsclass &args,
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54 | const text_t &collection, int colnumber,
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55 | format_t *formatlistptr, bool use_table,
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56 | text_tset &/*metadata*/, bool &/*getParents*/,
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57 | recptproto * collectproto, displayclass &disp,
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58 | outconvertclass &outconvert, ostream &textout,
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59 | ostream& logout) {
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60 |
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61 | text_t link, icon;
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62 |
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63 | text_t collink = collection;
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64 | if (!collink.empty()) collink = "&c=" + collink;
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65 |
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66 | get_link_icon (section, args, collink, link, icon);
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67 | bool highlight = false;
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68 | if (!args["d"].empty()) {
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69 | if (args["d"] == section.OID) highlight = true;
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70 | } else
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71 | if (args["cl"] == section.OID) highlight = true;
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72 |
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73 |
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74 | if (use_table || colnumber > 0) {
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75 | textout << "<table><tr valign=top>";
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76 | // get tab size
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77 | text_t tab; int itab;
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78 | disp.expandstring ("Global", "_tabwidth_", tab);
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79 | itab = tab.getint();
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80 | if (colnumber > 0) textout << outconvert << disp
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81 | << "<td><img src=\"_httpimg_/space.gif\" width="
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82 | << (itab*colnumber) << "></td>";
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83 | }
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84 |
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85 | textout << outconvert << disp
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86 | << get_formatted_string (collection, collectproto,
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87 | section, disp, formatlistptr,
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88 | link, icon, highlight, logout);
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89 |
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90 | if (use_table || colnumber > 0) textout << "</tr></table>\n";
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91 |
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92 | return 1;
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93 | }
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94 |
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95 | int vlistbrowserclass::output_section_group (FilterResponse_t §ions, cgiargsclass &args,
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96 | const text_t &collection, int colnumber,
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97 | format_t *formatlistptr, bool use_table,
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98 | text_tset &/*metadata*/, bool &/*getParents*/,
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99 | recptproto * collectproto, displayclass &disp,
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100 | outconvertclass &outconvert, ostream &textout,
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101 | ostream& logout) {
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102 |
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103 | text_t link, icon;
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104 | text_t &arg_d = args["d"];
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105 | text_t &arg_cl = args["cl"];
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106 |
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107 | text_t collink = collection;
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108 | if (!collink.empty()) collink = "&c=" + collink;
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109 |
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110 | if (colnumber > 0) {
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111 | textout << "<table><tr valign=top>";
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112 | // get tab size
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113 | text_t tab; int itab;
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114 | disp.expandstring ("Global", "_tabwidth_", tab);
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115 | itab = tab.getint();
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116 | if (colnumber > 0) textout << outconvert << disp
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117 | << "<td><img src=\"_httpimg_/space.gif\" width="
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118 | << (itab*colnumber) << "></td>";
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119 | textout << "<td>";
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120 | }
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121 | if (use_table) textout << "<table>\n";
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122 |
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123 | ResultDocInfo_tarray::iterator thissection = sections.docInfo.begin();
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124 | ResultDocInfo_tarray::iterator endsection = sections.docInfo.end();
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125 |
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126 | // ** here lies Alan's hack to get 4 results per table row
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127 | int item = 0, perline;; // set perline to 1 normally
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128 | text_t fstring;
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129 | if ( thissection != endsection ) { // only if there are results (else corrupts display)
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130 | fstring =
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131 | get_formatted_string (collection, collectproto,
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132 | *thissection, disp, formatlistptr, link, icon, false, logout);
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133 | // if format string
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134 | // has <td><t (e.g. <td><table>) then
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135 | // we assume it is an image and put it in 4 columns
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136 | if (fstring[5] == 't')
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137 | perline = 4;
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138 | else
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139 | perline = 1;
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140 | }
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141 |
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142 | while (thissection != endsection) {
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143 | item++;
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144 | get_link_icon (*thissection, args, collink, link, icon);
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145 | bool highlight = false;
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146 | if (!arg_d.empty()) {
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147 | if (arg_d == (*thissection).OID) highlight = true;
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148 | } else
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149 | if (arg_cl == (*thissection).OID) highlight = true;
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150 |
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151 | if ((item == 1 && use_table) || colnumber > 0 )
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152 | textout << "<tr valign=top>\n";
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153 |
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154 | textout << outconvert << disp
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155 | << " " << get_formatted_string (collection, collectproto,
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156 | *thissection, disp, formatlistptr, link, icon, false, logout);
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157 |
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158 | if ((item >= perline && use_table) || colnumber > 0) {
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159 | textout << "\n</tr>";
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160 | item = 0;
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161 | }
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162 | textout << "\n";
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163 | thissection ++;
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164 | }
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165 |
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166 | if (use_table) textout << "</table>\n";
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167 | if (colnumber > 0) textout << "</table></td></tr></table>\n";
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168 |
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169 | return 1;
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170 | }
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171 |
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172 |
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173 | // get_link_icon attempts to work out what type of icon should be displayed for
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174 | // the given section and what it should link to.
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175 | void vlistbrowserclass::get_link_icon (ResultDocInfo_t §ion, cgiargsclass &args,
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176 | const text_t &collink, text_t &link, text_t &icon) {
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177 |
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178 | link = "<a href=\"_httpdocument_" + collink;
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179 | icon = "_document:icontext_";
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180 | int haschildren = 0;
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181 |
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182 | if (section.metadata.count("haschildren")>0)
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183 | haschildren = section.metadata["haschildren"].values[0].getint();
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184 |
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185 | text_t doctype;
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186 | if (section.metadata.count("doctype")>0)
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187 | doctype = section.metadata["doctype"].values[0];
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188 |
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189 | text_t &arg_d = args["d"];
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190 | text_t &arg_cl = args["cl"];
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191 |
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192 | if (args["a"] == "q") {
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193 | // query results
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194 | if ((is_top (section.OID)) && (haschildren == 1)) icon = "_document:iconclosedbook_";
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195 | else if (haschildren == 1) icon = "_document:iconclosedfolder_";
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196 | link += "&cl=search&d=" + section.OID + "\">";
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197 |
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198 | } else if (!arg_d.empty()) {
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199 | // document level
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200 | if (is_top(section.OID)) {
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201 | icon = "_document:iconopenbook_";
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202 | if (arg_cl == "search") link = "<a href=\"_httpquery_\">";
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203 | else link += "&cl=" + arg_cl + "\">";
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204 |
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205 | } else if (haschildren == 1) {
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206 | if ((args["gc"] == "1") ||
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207 | (is_child_of (section.OID, arg_d)) ||
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208 | (section.OID == arg_d)) {
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209 | icon = "_document:iconopenfolder_";
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210 | link += "&cl=" + arg_cl + "&d=" + section.OID + ".pr\">";
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211 | } else {
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212 | icon = "_document:iconclosedfolder_";
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213 | link += "&cl=" + arg_cl + "&d=" + section.OID + "\">";
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214 | }
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215 | } else link += "&cl=" + arg_cl + "&d=" + section.OID + "\">";
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216 |
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217 | } else {
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218 | // classification level
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219 | if (haschildren == 1) {
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220 | if (doctype == "classify") {
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221 | if ((args["gc"] == "1") ||
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222 | (is_child_of (section.OID, arg_cl)) ||
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223 | (section.OID == arg_cl)) {
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224 | icon = "_document:iconopenbookshelf_";
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225 | link += "&cl=" + section.OID + ".pr\">";
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226 | } else {
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227 | icon = "_document:iconclosedbookshelf_";
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228 | link += "&cl=" + section.OID + "\">";
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229 | }
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230 | } else {
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231 | icon = "_document:iconclosedbook_";
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232 | link += "&cl=" + arg_cl + "&d=" + section.OID + "\">";
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233 | }
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234 | } else {
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235 | if (doctype == "classify") link = "";
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236 | else link += "&cl=" + arg_cl + "&d=" + section.OID + "\">";
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237 | }
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238 | }
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239 | }
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