Evergreen/staff_client/chrome/content/evergreen/main/paged_tree.js

   1 sdump('D_TRACE','Loading paged_tree.js\n');
   2
   3 function paged_tree_init(p) {
   4         sdump('D_PAGED_TREE',"TESTING: paged_tree.js: " + mw.G['main_test_variable'] + '\n');
   5         sdump('D_TRACE_ENTER',arg_dump(arguments));
   6
   7         p.w.current_idx = 0;
   8
   9         p.w.results_label = get_widget( p.w.document, p.nav_results );
  10         p.w.range_label = get_widget( p.w.document, p.nav_range );
  11
  12         p.w.hits_per_page_menu = get_widget( p.w.document, p.nav_hits_per_page );
  13         if (p.hits_per_page)
  14                 p.w.display_count = parseInt( p.hits_per_page );
  15         else
  16                 p.w.display_count = parseInt( p.w.hits_per_page_menu.getAttribute('value') );
  17
  18         p.w.next_button = get_widget( p.w.document, p.nav_next );
  19         p.w.prev_button = get_widget( p.w.document, p.nav_prev );
  20
  21         p.w.nav_bar = get_widget( p.w.document, p.nav_bar );
  22         if (p.hide_nav) p.w.nav_bar.hidden = p.hide_nav;
  23
  24         /*
  25         // Doesn't work for some reason
  26         var cmd_set_hits_per_page = get_widget( p.w.document, 'cmd_set_hits_per_page' );
  27         cmd_set_hits_per_page.addEventListener(
  28                 'command',
  29                 function (ev) {
  30                         sdump('D_TRACE','In set_hits handler\n');
  31                         alert('testing123');
  32                         try {
  33                                 p.w.display_count = parseInt( p.w.hits_per_page_menu.getAttribute('value') );
  34                                 paged_tree_update_visibility( p );
  35                                 paged_tree_update_nav( p );
  36                                 paged_tree_flesh_records( p );
  37                         } catch(E) {
  38                                 sdump('D_ERROR',js2JSON(E)+'\n');
  39                         }
  40                         sdump('D_TRACE','Leaving set_hits handler\n');
  41                 },
  42                 false
  43         );
  44         */
  45
  46         p.w.set_hits_per_page = function () {
  47                 try {
  48                         p.w.display_count = parseInt( p.w.hits_per_page_menu.getAttribute('value') );
  49                         paged_tree_update_visibility( p );
  50                         paged_tree_update_nav( p );
  51                         paged_tree_flesh_records( p );
  52                 } catch(E) {
  53                         sdump('D_ERROR',js2JSON(E)+'\n');
  54                 }
  55         }
  56
  57         var cmd_next = get_widget( p.w.document, 'cmd_next' );
  58         cmd_next.addEventListener(
  59                 'command',
  60                 function (ev) {
  61                         var backup_select_callback = p.w._select_callback;
  62                         p.w._select_callback = function (ev) {};
  63                         var result = paged_tree_nav_next(p);
  64                         p.w._select_callback = backup_select_callback;
  65                         return result;
  66                 },
  67                 false
  68         );
  69
  70         var cmd_prev = get_widget( p.w.document, 'cmd_prev' );
  71         cmd_prev.addEventListener(
  72                 'command',
  73                 function (ev) {
  74                         var backup_select_callback = p.w._select_callback;
  75                         p.w._select_callback = function (ev) {};
  76                         var result = paged_tree_nav_prev(p);
  77                         p.w._select_callback = backup_select_callback;
  78                         return result;
  79                 },
  80                 false
  81         );
  82
  83         p.w.tree = get_widget(p.w.document,p.paged_tree);
  84         p.w.popup = get_widget(p.w.document,p.popup);
  85         p.w.treecols = p.w.tree.firstChild;
  86         p.w.tc = p.w.tree.lastChild;
  87
  88         p.w._context_function = function (ev) {};
  89         p.w.popup.addEventListener('popupshowing',function (ev) { return p.w._context_function(ev); },false);
  90
  91         p.w._select_callback = function (ev) {};
  92         p.w.tree.addEventListener('select',function (ev) { return p.w._select_callback(ev); },false);
  93
  94         paged_tree_make_columns( p, p.w.treecols, p.cols )
  95
  96         p.w.clear_tree = function () {
  97                 empty_widget( p.w.document, p.w.tc );
  98                 p.w.current_idx = 0;
  99                 return paged_tree_update_nav(p);
 100         }
 101
 102         p.w.add_rows = function (ids) {
 103                 return paged_tree_add_rows(p,p.w.tc,ids);
 104         }
 105
 106         p.w.register_flesh_row_function = function (f) {
 107                 return p.w._flesh_row_function = f;
 108         }
 109
 110         p.w.register_select_callback = function (f) {
 111                 return p.w._select_callback = f;
 112         }
 113
 114         p.w.register_context_builder = function (f) {
 115                 return p.w._context_function = f;
 116         }
 117
 118         p.w.map_cols_to_treeitem = map_array_to_treecells_via_treeitem;
 119
 120         setTimeout(
 121                 function() {
 122                         sdump('D_TIMEOUT','***** timeout occured paged_tree.js');
 123                         if (p.onload) {
 124                                 try {
 125                                         sdump('D_TRACE','trying psuedo-onload: ' + p.onload + '\n');
 126                                         p.onload(p.w);
 127                                 } catch(E) {
 128                                         sdump('D_ERROR', js2JSON(E) + '\n' );
 129                                 }
 130                         }
 131                 }, 0
 132         );
 133         sdump('D_TRACE_EXIT',arg_dump(arguments));
 134         return;
 135 }
 136
 137 function paged_tree_make_columns( p, treecols, cols ) {
 138         sdump('D_PAGED_TREE',arg_dump(arguments,{2:'.length'}));
 139         sdump('D_TRACE_ENTER',arg_dump(arguments));
 140         var d = p.w.document;
 141         // cols[ idx ] = { 'id':???, 'label':???, 'primary':???, 'flex':??? }
 142         for (var i = 0; i < cols.length; i++) {
 143                 var col = cols[i];
 144                 sdump('D_PAGED_TREE','Col ' + i + ' : ' + js2JSON( col ) + '\n');
 145                 var treecol = d.createElement( 'treecol' );
 146                 treecols.appendChild( treecol );
 147                 for (var j in col) {
 148                         treecol.setAttribute( j, col[j] );
 149                 }
 150                 var splitter = d.createElement( 'splitter' );
 151                 treecols.appendChild(splitter);
 152                 splitter.setAttribute('class','tree-splitter');
 153         }
 154         sdump('D_TRACE_EXIT',arg_dump(arguments));
 155         return treecols;
 156 }
 157
 158 function paged_tree_add_rows( p, tc, ids ) {
 159         sdump('D_PAGED_TREE',arg_dump(arguments,{2:'.length'}));
 160         sdump('D_TRACE_ENTER',arg_dump(arguments));
 161         var d = p.w.document;
 162         var offset = 0;
 163         if (tc.childNodes.length > 0) { offset = tc.lastChild.id; }
 164         for (var i = 0; i < ids.length; i++) {
 165                 var id = ids[i];
 166
 167                 var treeitem = d.createElement( 'treeitem' );
 168                 treeitem.setAttribute( 'id', i+offset+1 );
 169                 treeitem.setAttribute( 'record_id', id );
 170                 treeitem.setAttribute( 'retrieved', 'false' );
 171                 if ( (i+offset) < (p.w.display_count + p.w.current_idx) ) {
 172                         treeitem.setAttribute( 'hidden', 'false' );
 173                 } else {
 174                         treeitem.setAttribute( 'hidden', 'true' );
 175                 }
 176                 tc.appendChild( treeitem );
 177
 178                 var treerow = d.createElement( 'treerow' );
 179                 treeitem.appendChild( treerow );
 180
 181                 for (var j = 0; j < p.w.treecols.childNodes.length; j++) {
 182                         var treecell = d.createElement( 'treecell' );
 183                         if (j == 0)
 184                                 treecell.setAttribute('label', getString('retrieving.record') );
 185                         else
 186                                 treecell.setAttribute('label', '' );
 187                         treerow.appendChild( treecell );
 188                 }
 189         }
 190         paged_tree_update_visibility( p );
 191         paged_tree_update_nav( p );
 192         paged_tree_flesh_records( p );
 193         sdump('D_TRACE_EXIT',arg_dump(arguments));
 194 }
 195
 196 function paged_tree_flesh_record(p,treeitem) {
 197         sdump('D_TRACE_ENTER',arg_dump(arguments));
 198         treeitem.setAttribute('retrieved','true');
 199         if (p.w._flesh_row_function) {
 200                 p.w._flesh_row_function( treeitem );
 201         }
 202         sdump('D_TRACE_EXIT',arg_dump(arguments));
 203 }
 204
 205 function paged_tree_flesh_records(p) {
 206         sdump('D_TRACE_ENTER',arg_dump(arguments));
 207         for (var i = 0; i < p.w.tc.childNodes.length; i++) {
 208                 var treeitem = p.w.tc.childNodes[i];
 209                 if ( (treeitem.hidden == false) && (treeitem.getAttribute('retrieved')=='false') ) {
 210                         paged_tree_flesh_record(p,treeitem);
 211                 }
 212         }
 213         sdump('D_TRACE_EXIT',arg_dump(arguments));
 214 }
 215
 216 function paged_tree_update_nav(p) {
 217         sdump('D_TRACE_ENTER',arg_dump(arguments));
 218         if (p.w.results_label)
 219                 p.w.results_label.setAttribute('value', p.w.tc.childNodes.length );
 220
 221         var min = p.w.current_idx + 1;
 222         var max = p.w.current_idx + p.w.display_count;
 223         if (max > p.w.tc.childNodes.length)
 224                 max = p.w.tc.childNodes.length;
 225         if (p.w.range_label) {
 226                 if (max > 0)
 227                         p.w.range_label.setAttribute('value', min + ' - ' + max );
 228                 else
 229                         p.w.range_label.setAttribute('value', '0 - 0' );
 230         }
 231
 232         if (p.w.next_button) {
 233                 if (max < p.w.tc.childNodes.length)
 234                         p.w.next_button.disabled = false;
 235                 else
 236                         p.w.next_button.disabled = true;
 237         }
 238
 239         if (p.w.prev_button) {
 240                 if (min == 1)
 241                         p.w.prev_button.disabled = true;
 242                 else
 243                         p.w.prev_button.disabled = false;
 244         }
 245         sdump('D_TRACE_EXIT',arg_dump(arguments));
 246 }
 247
 248 function paged_tree_update_visibility(p) {
 249         sdump('D_TRACE_ENTER',arg_dump(arguments));
 250         for (var i = 0; i < p.w.tc.childNodes.length; i++) {
 251                 var treeitem = p.w.tc.childNodes[i];
 252                 if ( (i >= p.w.current_idx) && (i < (p.w.current_idx+p.w.display_count)) )
 253                         treeitem.hidden = false;
 254                 else
 255                         treeitem.hidden = true;
 256         }
 257         sdump('D_TRACE_EXIT',arg_dump(arguments));
 258 }
 259
 260 function paged_tree_nav_next(p) {
 261         sdump('D_TRACE_ENTER',arg_dump(arguments));
 262         var proposed_idx = p.w.current_idx + p.w.display_count;
 263         if (proposed_idx >= p.w.tc.childNodes.length)
 264                 proposed_idx = p.w.tc.childNodes.length - 1;
 265         p.w.current_idx = proposed_idx;
 266         paged_tree_update_visibility(p);
 267         paged_tree_update_nav(p);
 268         paged_tree_flesh_records(p);
 269         sdump('D_TRACE_EXIT',arg_dump(arguments));
 270 }
 271
 272 function paged_tree_nav_prev(p) {
 273         sdump('D_TRACE_ENTER',arg_dump(arguments));
 274         var proposed_idx = p.w.current_idx - p.w.display_count;
 275         if (proposed_idx < 0)
 276                 proposed_idx = 0;
 277         p.w.current_idx = proposed_idx;
 278         paged_tree_update_visibility(p);
 279         paged_tree_update_nav(p);
 280         paged_tree_flesh_records(p);
 281         sdump('D_TRACE_EXIT',arg_dump(arguments));
 282 }
 283