Open-ILS/xul/staff_client/chrome/content/util/widgets.js

   1 dump('entering util/widgets.js\n');
   2
   3 if (typeof util == 'undefined') var util = {};
   4 util.widgets = {};
   5
   6 util.widgets.EXPORT_OK  = [
   7         'get_list_from_tree_selection',
   8         'disable_accesskeys_in_node_and_children',
   9         'enable_accesskeys_in_node_and_children',
  10         'remove_children',
  11         'make_grid',
  12         'make_menulist',
  13         'insertAfter',
  14         'apply_vertical_tab_on_enter_handler',
  15         'vertical_tab',
  16 ];
  17 util.widgets.EXPORT_TAGS        = { ':all' : util.widgets.EXPORT_OK };
  18
  19 util.widgets.make_menulist = function( items ) {
  20         var menulist = document.createElement('menulist');
  21         var menupopup = document.createElement('menupopup'); menulist.appendChild(menupopup);
  22         for (var i = 0; i < items.length; i++) {
  23                 var menuitem = document.createElement('menuitem'); menupopup.appendChild(menuitem);
  24                 menuitem.setAttribute('label',items[i][0]);
  25                 menuitem.setAttribute('value',items[i][1]);
  26         }
  27         return menulist;
  28 }
  29
  30 util.widgets.make_grid = function( cols ) {
  31         var grid = document.createElement('grid');
  32         var columns = document.createElement('columns'); grid.appendChild(columns);
  33         for (var i = 0; i < cols.length; i++) {
  34                 var column = document.createElement('column'); columns.appendChild(column);
  35                 for (var j in cols[i]) {
  36                         column.setAttribute(j,cols[i][j]);
  37                 }
  38         }
  39         var rows = document.createElement('rows'); grid.appendChild(rows);
  40         return grid;
  41 }
  42
  43 util.widgets.get_list_from_tree_selection = function(tree_w) {
  44         var hitlist;
  45         if (typeof(tree_w) != 'object') {
  46                 tree = document.getElementById(tree_w);
  47         } else {
  48                 tree = tree_w;
  49         }
  50         var list = [];
  51         var start = new Object();
  52         var end = new Object();
  53         var numRanges = tree.view.selection.getRangeCount();
  54         for (var t=0; t<numRanges; t++){
  55                 tree.view.selection.getRangeAt(t,start,end);
  56                 for (var v=start.value; v<=end.value; v++){
  57                         var i = tree.contentView.getItemAtIndex(v);
  58                         list.push( i );
  59                 }
  60         }
  61         return list;
  62 }
  63
  64 util.widgets.remove_children = function(w) {
  65         if (typeof w != 'object') w = document.getElementById(w);
  66         while(w.lastChild) w.removeChild( w.lastChild );
  67 }
  68
  69 util.widgets.disable_accesskeys_in_node_and_children = function( node ) {
  70         if (node.getAttribute('accesskey')) {
  71                 node.setAttribute('oldaccesskey', node.getAttribute('accesskey'));
  72                 node.setAttribute('accesskey',''); node.accessKey = '';
  73         }
  74         for (var i = 0; i < node.childNodes.length; i++) {
  75                 util.widgets.disable_accesskeys_in_node_and_children( node.childNodes[i] );
  76         }
  77         dump('- node = <' + node.id + '> accesskey = <' + node.accessKey + '> accesskey = <' + node.getAttribute('accesskey') + '> oldaccesskey = <' + node.getAttribute('oldaccesskey') + '>\n');
  78 }
  79
  80 util.widgets.enable_accesskeys_in_node_and_children = function( node ) {
  81         if (node.getAttribute('oldaccesskey')) {
  82                 node.setAttribute('accesskey', node.getAttribute('oldaccesskey'));
  83                 node.accessKey = node.getAttribute('oldaccesskey');
  84                 node.setAttribute('oldaccesskey','');
  85         }
  86         for (var i = 0; i < node.childNodes.length; i++) {
  87                 util.widgets.enable_accesskeys_in_node_and_children( node.childNodes[i] );
  88         }
  89         dump('+ node = <' + node.id + '> accesskey = <' + node.accessKey + '> accesskey = <' + node.getAttribute('accesskey') + '> oldaccesskey = <' + node.getAttribute('oldaccesskey') + '>\n');
  90 }
  91
  92 util.widgets.insertAfter = function(parent_node,new_node,sibling_node) {
  93         sibling_node = sibling_node.nextSibling;
  94         if (sibling_node) {
  95                 parent_node.insertBefore(new_node,sibling_node);
  96         } else {
  97                 parent_node.appendChild(new_node);
  98         }
  99 }
 100
 101 util.widgets.apply_vertical_tab_on_enter_handler = function(node) {
 102         try {
 103                 node.addEventListener(
 104                         'keypress',
 105                         function(ev) {
 106                                 dump('keypress: ev.target.tagName = ' + ev.target.tagName
 107                                         + ' ev.target.nodeName = ' + ev.target.nodeName
 108                                         + ' ev.keyCode = ' + ev.keyCode
 109                                         + ' ev.charCode = ' + ev.charCode + '\n');
 110                                 if (ev.keyCode == 13) {
 111                                         dump('trying vertical tab\n');
 112                                         util.widgets.vertical_tab(ev.target);
 113                                         ev.preventDefault(); ev.stopPropagation();
 114                                         return true;
 115                                 }
 116                         },
 117                         false
 118                 );
 119         } catch(E) {
 120                 alert(E);
 121         }
 122 }
 123
 124 util.widgets.vertical_tab = function(node) {
 125         try {
 126                 var rel_vert_pos = node.getAttribute('rel_vert_pos') || 0;
 127                 dump('vertical_tab -> node = ' + node.nodeName + ' rel_vert_pos = ' + rel_vert_pos + '\n');
 128
 129                 var nl = document.getElementsByTagName( node.nodeName );
 130
 131                 var found_self = false; var next_node; var max_rel_vert_pos = 0;
 132                 for (var i = 0; i < nl.length; i++) {
 133
 134                         var candidate_node = nl[i];
 135                         var test_rel_vert_pos = candidate_node.getAttribute('rel_vert_pos') || 0;
 136
 137                         if (found_self && !next_node && (test_rel_vert_pos == rel_vert_pos) && !candidate_node.disabled) {
 138
 139                                 next_node = candidate_node;
 140
 141                         }
 142                         if (candidate_node == node) found_self = true;
 143
 144                         if (test_rel_vert_pos > max_rel_vert_pos) max_rel_vert_pos = test_rel_vert_pos;
 145                 }
 146
 147                 dump('intermediate: next_node = ' + next_node + ' max_rel_vert_pos = ' + max_rel_vert_pos + '\n');
 148
 149                 if (!next_node) {
 150
 151                         found_self = false;
 152                         for (var next_pos = rel_vert_pos; next_pos <= max_rel_vert_pos; next_pos++) {
 153
 154                                 for (var i = 0; i < nl.length; i++) {
 155                                         var candidate_node = nl[i];
 156                                         var test_rel_vert_pos = candidate_node.getAttribute('rel_vert_pos') || 0;
 157
 158                                         if (found_self && !next_node && (test_rel_vert_pos == next_pos) && !candidate_node.disabled ) {
 159                                                 next_node = candidate_node;
 160                                         }
 161
 162                                         if (candidate_node == node) found_self = true;
 163                                 }
 164
 165                         }
 166
 167                 }
 168
 169                 if (next_node) {
 170                         dump('focusing\n');
 171                         next_node.focus();
 172                 }
 173         } catch(E) {
 174                 alert(E);
 175         }
 176 }
 177
 178
 179 dump('exiting util/widgets.js\n');