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