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.display_count = 10;
   8         p.w.current_idx = 0;
   9
  10         p.w.results_label = get_widget( p.w.document, p.nav_results );
  11         p.w.range_label = get_widget( p.w.document, p.nav_range );
  12         p.w.next_button = get_widget( p.w.document, p.nav_next );
  13         p.w.prev_button = get_widget( p.w.document, p.nav_prev );
  14
  15         var cmd_next = get_widget( p.w.document, 'cmd_next' );
  16         cmd_next.addEventListener(
  17                 'command',
  18                 function (ev) {
  19                         sdump('D_TRACE_ENTER',arg_dump(arguments));
  20                         sdump('D_TRACE_EXIT',arg_dump(arguments));
  21                         return paged_tree_nav_next(p);
  22                 },
  23                 false
  24         );
  25
  26         var cmd_prev = get_widget( p.w.document, 'cmd_prev' );
  27         cmd_prev.addEventListener(
  28                 'command',
  29                 function (ev) {
  30                         sdump('D_TRACE_ENTER',arg_dump(arguments));
  31                         sdump('D_TRACE_EXIT',arg_dump(arguments));
  32                         return paged_tree_nav_prev(p);
  33                 },
  34                 false
  35         );
  36
  37         p.w.tree = get_widget(p.w.document,p.paged_tree);
  38         p.w.treecols = p.w.tree.firstChild;
  39         p.w.tc = p.w.tree.lastChild;
  40
  41         paged_tree_make_columns( p, p.w.treecols, p.cols )
  42
  43         p.w.clear_tree = function () {
  44                 empty_widget( p.w.document, p.w.tc );
  45                 p.w.current_idx = 0;
  46                 paged_tree_update_nav(p);
  47         }
  48
  49         p.w.add_rows = function (ids) {
  50                 sdump('D_TRACE_ENTER',arg_dump(arguments));
  51                 sdump('D_TRACE_EXIT',arg_dump(arguments));
  52                 return paged_tree_add_rows(p,p.w.tc,ids);
  53         }
  54
  55         p.w.register_flesh_row_function = function (f) {
  56                 sdump('D_PAGED_TREE',arg_dump(arguments));
  57                 sdump('D_TRACE_ENTER',arg_dump(arguments));
  58                 p.w._flesh_row_function = f;
  59                 sdump('D_TRACE_EXIT',arg_dump(arguments));
  60         }
  61
  62         p.w.register_select_callback = function (f) {
  63                 sdump('D_PAGED_TREE',arg_dump(arguments));
  64                 sdump('D_TRACE_ENTER',arg_dump(arguments));
  65                 p.w._select_callback = f;
  66                 sdump('D_TRACE_EXIT',arg_dump(arguments));
  67         }
  68
  69         p.w.map_cols_to_treeitem = map_array_to_treecells_via_treeitem;
  70
  71         if (p.onload) {
  72                 try {
  73                         sdump('D_TRACE','trying psuedo-onload: ' + p.onload + '\n');
  74                         p.onload(p.w);
  75                 } catch(E) {
  76                         sdump('D_ERROR', js2JSON(E) + '\n' );
  77                 }
  78         }
  79         sdump('D_TRACE_EXIT',arg_dump(arguments));
  80         return;
  81 }
  82
  83 function paged_tree_make_columns( p, treecols, cols ) {
  84         sdump('D_PAGED_TREE',arg_dump(arguments,{2:'.length'}));
  85         sdump('D_TRACE_ENTER',arg_dump(arguments));
  86         var d = p.w.document;
  87         // cols[ idx ] = { 'id':???, 'label':???, 'primary':???, 'flex':??? }
  88         for (var i = 0; i < cols.length; i++) {
  89                 var col = cols[i];
  90                 sdump('D_PAGED_TREE','Col ' + i + ' : ' + js2JSON( col ) + '\n');
  91                 var treecol = d.createElement( 'treecol' );
  92                 treecols.appendChild( treecol );
  93                 for (var j in col) {
  94                         treecol.setAttribute( j, col[j] );
  95                 }
  96         }
  97         sdump('D_TRACE_EXIT',arg_dump(arguments));
  98         return treecols;
  99 }
 100
 101 function paged_tree_add_rows( p, tc, ids ) {
 102         sdump('D_PAGED_TREE',arg_dump(arguments,{2:'.length'}));
 103         sdump('D_TRACE_ENTER',arg_dump(arguments));
 104         var d = p.w.document;
 105         var offset = 0;
 106         if (tc.childNodes.length > 0) { offset = tc.lastChild.id; }
 107         for (var i = 0; i < ids.length; i++) {
 108                 var id = ids[i];
 109
 110                 var treeitem = d.createElement( 'treeitem' );
 111                 treeitem.setAttribute( 'id', i+offset+1 );
 112                 treeitem.setAttribute( 'record_id', id );
 113                 treeitem.setAttribute( 'retrieved', 'false' );
 114                 if ( (i+offset) < (p.w.display_count + p.w.current_idx) ) {
 115                         treeitem.setAttribute( 'hidden', 'false' );
 116                 } else {
 117                         treeitem.setAttribute( 'hidden', 'true' );
 118                 }
 119                 tc.appendChild( treeitem );
 120
 121                 var treerow = d.createElement( 'treerow' );
 122                 treeitem.appendChild( treerow );
 123
 124                 for (var j = 0; j < p.w.treecols.childNodes.length; j++) {
 125                         var treecell = d.createElement( 'treecell' );
 126                         if (j == 0)
 127                                 treecell.setAttribute('label', getString('retrieving.record') );
 128                         else
 129                                 treecell.setAttribute('label', '' );
 130                         treerow.appendChild( treecell );
 131                 }
 132         }
 133         paged_tree_update_visibility( p );
 134         paged_tree_update_nav( p );
 135         paged_tree_flesh_records( p );
 136         sdump('D_TRACE_EXIT',arg_dump(arguments));
 137 }
 138
 139 function paged_tree_flesh_record(p,treeitem) {
 140         sdump('D_TRACE_ENTER',arg_dump(arguments));
 141         treeitem.setAttribute('retrieved','true');
 142         if (p.w._flesh_row_function) {
 143                 p.w._flesh_row_function( treeitem );
 144         }
 145         sdump('D_TRACE_EXIT',arg_dump(arguments));
 146 }
 147
 148 function paged_tree_flesh_records(p) {
 149         sdump('D_TRACE_ENTER',arg_dump(arguments));
 150         for (var i = 0; i < p.w.tc.childNodes.length; i++) {
 151                 var treeitem = p.w.tc.childNodes[i];
 152                 if ( (treeitem.hidden == false) && (treeitem.getAttribute('retrieved')=='false') ) {
 153                         paged_tree_flesh_record(p,treeitem);
 154                 }
 155         }
 156         sdump('D_TRACE_EXIT',arg_dump(arguments));
 157 }
 158
 159 function paged_tree_update_nav(p) {
 160         sdump('D_TRACE_ENTER',arg_dump(arguments));
 161         if (p.w.results_label)
 162                 p.w.results_label.setAttribute('value', p.w.tc.childNodes.length );
 163
 164         var min = p.w.current_idx + 1;
 165         var max = p.w.current_idx + p.w.display_count;
 166         if (max > p.w.tc.childNodes.length)
 167                 max = p.w.tc.childNodes.length;
 168         if (p.w.range_label)
 169                 p.w.range_label.setAttribute('value', min + ' - ' + max );
 170
 171         if (p.w.next_button) {
 172                 if (max < p.w.tc.childNodes.length)
 173                         p.w.next_button.disabled = false;
 174                 else
 175                         p.w.next_button.disabled = true;
 176         }
 177
 178         if (p.w.prev_button) {
 179                 if (min == 1)
 180                         p.w.prev_button.disabled = true;
 181                 else
 182                         p.w.prev_button.disabled = false;
 183         }
 184         sdump('D_TRACE_EXIT',arg_dump(arguments));
 185 }
 186
 187 function paged_tree_update_visibility(p) {
 188         sdump('D_TRACE_ENTER',arg_dump(arguments));
 189         for (var i = 0; i < p.w.tc.childNodes.length; i++) {
 190                 var treeitem = p.w.tc.childNodes[i];
 191                 if ( (i >= p.w.current_idx) && (i < (p.w.current_idx+p.w.display_count)) )
 192                         treeitem.hidden = false;
 193                 else
 194                         treeitem.hidden = true;
 195         }
 196         sdump('D_TRACE_EXIT',arg_dump(arguments));
 197 }
 198
 199 function paged_tree_nav_next(p) {
 200         sdump('D_TRACE_ENTER',arg_dump(arguments));
 201         var proposed_idx = p.w.current_idx + p.w.display_count;
 202         if (proposed_idx >= p.w.tc.childNodes.length)
 203                 proposed_idx = p.w.tc.childNodes.length - 1;
 204         p.w.current_idx = proposed_idx;
 205         paged_tree_update_visibility(p);
 206         paged_tree_update_nav(p);
 207         paged_tree_flesh_records(p);
 208         sdump('D_TRACE_EXIT',arg_dump(arguments));
 209 }
 210
 211 function paged_tree_nav_prev(p) {
 212         sdump('D_TRACE_ENTER',arg_dump(arguments));
 213         var proposed_idx = p.w.current_idx - p.w.display_count;
 214         if (proposed_idx < 0)
 215                 proposed_idx = 0;
 216         p.w.current_idx = proposed_idx;
 217         paged_tree_update_visibility(p);
 218         paged_tree_update_nav(p);
 219         paged_tree_flesh_records(p);
 220         sdump('D_TRACE_EXIT',arg_dump(arguments));
 221 }
 222