src/tree/Column.js

   1 /*
   2
   3 This file is part of Ext JS 4
   4
   5 Copyright (c) 2011 Sencha Inc
   6
   7 Contact:  http://www.sencha.com/contact
   8
   9 GNU General Public License Usage
  10 This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file.  Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
  11
  12 If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
  13
  14 */
  15 /**
  16  * @class Ext.tree.Column
  17  * @extends Ext.grid.column.Column
  18  *
  19  * Provides indentation and folder structure markup for a Tree taking into account
  20  * depth and position within the tree hierarchy.
  21  *
  22  * @private
  23  */
  24 Ext.define('Ext.tree.Column', {
  25     extend: 'Ext.grid.column.Column',
  26     alias: 'widget.treecolumn',
  27
  28     initComponent: function() {
  29         var origRenderer = this.renderer || this.defaultRenderer,
  30             origScope    = this.scope || window;
  31
  32         this.renderer = function(value, metaData, record, rowIdx, colIdx, store, view) {
  33             var buf   = [],
  34                 format = Ext.String.format,
  35                 depth = record.getDepth(),
  36                 treePrefix  = Ext.baseCSSPrefix + 'tree-',
  37                 elbowPrefix = treePrefix + 'elbow-',
  38                 expanderCls = treePrefix + 'expander',
  39                 imgText     = '<img src="{1}" class="{0}" />',
  40                 checkboxText= '<input type="button" role="checkbox" class="{0}" {1} />',
  41                 formattedValue = origRenderer.apply(origScope, arguments),
  42                 href = record.get('href'),
  43                 target = record.get('hrefTarget'),
  44                 cls = record.get('cls');
  45
  46             while (record) {
  47                 if (!record.isRoot() || (record.isRoot() && view.rootVisible)) {
  48                     if (record.getDepth() === depth) {
  49                         buf.unshift(format(imgText,
  50                             treePrefix + 'icon ' +
  51                             treePrefix + 'icon' + (record.get('icon') ? '-inline ' : (record.isLeaf() ? '-leaf ' : '-parent ')) +
  52                             (record.get('iconCls') || ''),
  53                             record.get('icon') || Ext.BLANK_IMAGE_URL
  54                         ));
  55                         if (record.get('checked') !== null) {
  56                             buf.unshift(format(
  57                                 checkboxText,
  58                                 (treePrefix + 'checkbox') + (record.get('checked') ? ' ' + treePrefix + 'checkbox-checked' : ''),
  59                                 record.get('checked') ? 'aria-checked="true"' : ''
  60                             ));
  61                             if (record.get('checked')) {
  62                                 metaData.tdCls += (' ' + treePrefix + 'checked');
  63                             }
  64                         }
  65                         if (record.isLast()) {
  66                             if (record.isExpandable()) {
  67                                 buf.unshift(format(imgText, (elbowPrefix + 'end-plus ' + expanderCls), Ext.BLANK_IMAGE_URL));
  68                             } else {
  69                                 buf.unshift(format(imgText, (elbowPrefix + 'end'), Ext.BLANK_IMAGE_URL));
  70                             }
  71
  72                         } else {
  73                             if (record.isExpandable()) {
  74                                 buf.unshift(format(imgText, (elbowPrefix + 'plus ' + expanderCls), Ext.BLANK_IMAGE_URL));
  75                             } else {
  76                                 buf.unshift(format(imgText, (treePrefix + 'elbow'), Ext.BLANK_IMAGE_URL));
  77                             }
  78                         }
  79                     } else {
  80                         if (record.isLast() || record.getDepth() === 0) {
  81                             buf.unshift(format(imgText, (elbowPrefix + 'empty'), Ext.BLANK_IMAGE_URL));
  82                         } else if (record.getDepth() !== 0) {
  83                             buf.unshift(format(imgText, (elbowPrefix + 'line'), Ext.BLANK_IMAGE_URL));
  84                         }
  85                     }
  86                 }
  87                 record = record.parentNode;
  88             }
  89             if (href) {
  90                 buf.push('<a href="', href, '" target="', target, '">', formattedValue, '</a>');
  91             } else {
  92                 buf.push(formattedValue);
  93             }
  94             if (cls) {
  95                 metaData.tdCls += ' ' + cls;
  96             }
  97             return buf.join('');
  98         };
  99         this.callParent(arguments);
 100     },
 101
 102     defaultRenderer: function(value) {
 103         return value;
 104     }
 105 });