1 | /* |
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2 | * FCKeditor - The text editor for internet |
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3 | * Copyright (C) 2003-2006 Frederico Caldeira Knabben |
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4 | * |
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5 | * Licensed under the terms of the GNU Lesser General Public License: |
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6 | * http://www.opensource.org/licenses/lgpl-license.php |
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7 | * |
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8 | * For further information visit: |
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9 | * http://www.fckeditor.net/ |
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10 | * |
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11 | * "Support Open Source software. What about a donation today?" |
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12 | * |
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13 | * File Name: fcktablehandler.js |
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14 | * Manage table operations. |
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15 | * |
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16 | * File Authors: |
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17 | * Frederico Caldeira Knabben (fredck@fckeditor.net) |
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18 | */ |
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19 | |
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20 | var FCKTableHandler = new Object() ; |
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21 | |
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22 | FCKTableHandler.InsertRow = function() |
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23 | { |
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24 | // Get the row where the selection is placed in. |
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25 | var oRow = FCKSelection.MoveToAncestorNode("TR") ; |
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26 | if ( !oRow ) return ; |
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27 | |
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28 | // Create a clone of the row. |
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29 | var oNewRow = oRow.cloneNode( true ) ; |
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30 | |
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31 | // Insert the new row (copy) before of it. |
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32 | oRow.parentNode.insertBefore( oNewRow, oRow ) ; |
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33 | |
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34 | // Clean the row (it seems that the new row has been added after it). |
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35 | FCKTableHandler.ClearRow( oRow ) ; |
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36 | } |
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37 | |
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38 | FCKTableHandler.DeleteRows = function( row ) |
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39 | { |
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40 | // If no row has been passed as a parameer, |
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41 | // then get the row where the selection is placed in. |
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42 | if ( !row ) |
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43 | row = FCKSelection.MoveToAncestorNode("TR") ; |
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44 | if ( !row ) return ; |
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45 | |
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46 | // Get the row's table. |
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47 | var oTable = FCKTools.GetElementAscensor( row, 'TABLE' ) ; |
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48 | |
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49 | // If just one row is available then delete the entire table. |
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50 | if ( oTable.rows.length == 1 ) |
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51 | { |
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52 | FCKTableHandler.DeleteTable( oTable ) ; |
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53 | return ; |
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54 | } |
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55 | |
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56 | // Delete the row. |
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57 | row.parentNode.removeChild( row ) ; |
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58 | } |
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59 | |
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60 | FCKTableHandler.DeleteTable = function( table ) |
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61 | { |
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62 | // If no table has been passed as a parameer, |
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63 | // then get the table where the selection is placed in. |
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64 | if ( !table ) |
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65 | { |
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66 | var table = FCKSelection.GetSelectedElement() ; |
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67 | if ( !table || table.tagName != 'TABLE' ) |
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68 | table = FCKSelection.MoveToAncestorNode("TABLE") ; |
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69 | } |
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70 | if ( !table ) return ; |
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71 | |
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72 | // Delete the table. |
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73 | FCKSelection.SelectNode( table ) ; |
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74 | FCKSelection.Collapse(); |
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75 | table.parentNode.removeChild( table ) ; |
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76 | } |
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77 | |
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78 | FCKTableHandler.InsertColumn = function() |
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79 | { |
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80 | // Get the cell where the selection is placed in. |
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81 | var oCell = FCKSelection.MoveToAncestorNode("TD") ; |
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82 | if ( !oCell ) |
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83 | oCell = FCKSelection.MoveToAncestorNode("TH") ; |
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84 | |
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85 | if ( !oCell ) return ; |
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86 | |
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87 | // Get the cell's table. |
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88 | var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ; |
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89 | |
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90 | // Get the index of the column to be created (based on the cell). |
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91 | var iIndex = oCell.cellIndex + 1 ; |
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92 | |
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93 | // Loop throw all rows available in the table. |
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94 | for ( var i = 0 ; i < oTable.rows.length ; i++ ) |
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95 | { |
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96 | // Get the row. |
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97 | var oRow = oTable.rows[i] ; |
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98 | |
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99 | // If the row doens't have enought cells, ignore it. |
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100 | if ( oRow.cells.length < iIndex ) |
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101 | continue ; |
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102 | |
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103 | oCell = oRow.cells[iIndex-1].cloneNode(false) ; |
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104 | |
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105 | if ( FCKBrowserInfo.IsGecko ) |
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106 | oCell.innerHTML = GECKO_BOGUS ; |
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107 | |
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108 | // Get the cell that is placed in the new cell place. |
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109 | var oBaseCell = oRow.cells[iIndex] ; |
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110 | |
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111 | // If the cell is available (we are not in the last cell of the row). |
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112 | if ( oBaseCell ) |
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113 | oRow.insertBefore( oCell, oBaseCell ) ; // Insert the new cell just before of it. |
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114 | else |
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115 | oRow.appendChild( oCell ) ; // Append the cell at the end of the row. |
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116 | } |
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117 | } |
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118 | |
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119 | FCKTableHandler.DeleteColumns = function() |
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120 | { |
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121 | // Get the cell where the selection is placed in. |
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122 | var oCell = FCKSelection.MoveToAncestorNode('TD') || FCKSelection.MoveToAncestorNode('TH') ; |
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123 | |
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124 | if ( !oCell ) return ; |
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125 | |
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126 | // Get the cell's table. |
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127 | var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ; |
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128 | |
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129 | // Get the cell index. |
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130 | var iIndex = oCell.cellIndex ; |
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131 | |
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132 | // Loop throw all rows (from down to up, because it's possible that some |
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133 | // rows will be deleted). |
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134 | for ( var i = oTable.rows.length - 1 ; i >= 0 ; i-- ) |
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135 | { |
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136 | // Get the row. |
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137 | var oRow = oTable.rows[i] ; |
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138 | |
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139 | // If the cell to be removed is the first one and the row has just one cell. |
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140 | if ( iIndex == 0 && oRow.cells.length == 1 ) |
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141 | { |
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142 | // Remove the entire row. |
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143 | FCKTableHandler.DeleteRows( oRow ) ; |
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144 | continue ; |
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145 | } |
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146 | |
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147 | // If the cell to be removed exists the delete it. |
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148 | if ( oRow.cells[iIndex] ) |
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149 | oRow.removeChild( oRow.cells[iIndex] ) ; |
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150 | } |
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151 | } |
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152 | |
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153 | FCKTableHandler.InsertCell = function( cell ) |
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154 | { |
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155 | // Get the cell where the selection is placed in. |
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156 | var oCell = cell ? cell : FCKSelection.MoveToAncestorNode("TD") ; |
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157 | if ( !oCell ) return ; |
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158 | |
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159 | // Create the new cell element to be added. |
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160 | var oNewCell = FCK.EditorDocument.createElement("TD"); |
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161 | if ( FCKBrowserInfo.IsGecko ) |
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162 | oNewCell.innerHTML = GECKO_BOGUS ; |
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163 | // oNewCell.innerHTML = " " ; |
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164 | |
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165 | // If it is the last cell in the row. |
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166 | if ( oCell.cellIndex == oCell.parentNode.cells.length - 1 ) |
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167 | { |
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168 | // Add the new cell at the end of the row. |
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169 | oCell.parentNode.appendChild( oNewCell ) ; |
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170 | } |
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171 | else |
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172 | { |
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173 | // Add the new cell before the next cell (after the active one). |
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174 | oCell.parentNode.insertBefore( oNewCell, oCell.nextSibling ) ; |
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175 | } |
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176 | |
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177 | return oNewCell ; |
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178 | } |
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179 | |
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180 | FCKTableHandler.DeleteCell = function( cell ) |
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181 | { |
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182 | // If this is the last cell in the row. |
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183 | if ( cell.parentNode.cells.length == 1 ) |
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184 | { |
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185 | // Delete the entire row. |
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186 | FCKTableHandler.DeleteRows( FCKTools.GetElementAscensor( cell, 'TR' ) ) ; |
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187 | return ; |
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188 | } |
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189 | |
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190 | // Delete the cell from the row. |
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191 | cell.parentNode.removeChild( cell ) ; |
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192 | } |
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193 | |
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194 | FCKTableHandler.DeleteCells = function() |
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195 | { |
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196 | var aCells = FCKTableHandler.GetSelectedCells() ; |
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197 | |
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198 | for ( var i = aCells.length - 1 ; i >= 0 ; i-- ) |
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199 | { |
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200 | FCKTableHandler.DeleteCell( aCells[i] ) ; |
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201 | } |
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202 | } |
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203 | |
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204 | FCKTableHandler.MergeCells = function() |
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205 | { |
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206 | // Get all selected cells. |
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207 | var aCells = FCKTableHandler.GetSelectedCells() ; |
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208 | |
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209 | // At least 2 cells must be selected. |
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210 | if ( aCells.length < 2 ) |
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211 | return ; |
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212 | |
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213 | // The merge can occour only if the selected cells are from the same row. |
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214 | if ( aCells[0].parentNode != aCells[aCells.length-1].parentNode ) |
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215 | return ; |
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216 | |
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217 | // Calculate the new colSpan for the first cell. |
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218 | var iColSpan = isNaN( aCells[0].colSpan ) ? 1 : aCells[0].colSpan ; |
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219 | |
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220 | var sHtml = '' ; |
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221 | var oCellsContents = FCK.EditorDocument.createDocumentFragment() ; |
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222 | |
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223 | for ( var i = aCells.length - 1 ; i >= 0 ; i-- ) |
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224 | { |
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225 | var eCell = aCells[i] ; |
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226 | |
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227 | // Move its contents to the document fragment. |
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228 | for ( var c = eCell.childNodes.length - 1 ; c >= 0 ; c-- ) |
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229 | { |
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230 | var eChild = eCell.removeChild( eCell.childNodes[c] ) ; |
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231 | |
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232 | if ( ( eChild.hasAttribute && eChild.hasAttribute('_moz_editor_bogus_node') ) || ( eChild.getAttribute && eChild.getAttribute( 'type', 2 ) == '_moz' ) ) |
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233 | continue ; |
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234 | |
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235 | oCellsContents.insertBefore( eChild, oCellsContents.firstChild ) ; |
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236 | } |
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237 | |
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238 | if ( i > 0 ) |
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239 | { |
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240 | // Accumulate the colspan of the cell. |
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241 | iColSpan += isNaN( eCell.colSpan ) ? 1 : eCell.colSpan ; |
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242 | |
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243 | // Delete the cell. |
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244 | FCKTableHandler.DeleteCell( eCell ) ; |
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245 | } |
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246 | } |
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247 | |
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248 | // Set the innerHTML of the remaining cell (the first one). |
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249 | aCells[0].colSpan = iColSpan ; |
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250 | |
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251 | if ( FCKBrowserInfo.IsGecko && oCellsContents.childNodes.length == 0 ) |
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252 | aCells[0].innerHTML = GECKO_BOGUS ; |
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253 | else |
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254 | aCells[0].appendChild( oCellsContents ) ; |
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255 | } |
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256 | |
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257 | FCKTableHandler.SplitCell = function() |
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258 | { |
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259 | // Check that just one cell is selected, otherwise return. |
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260 | var aCells = FCKTableHandler.GetSelectedCells() ; |
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261 | if ( aCells.length != 1 ) |
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262 | return ; |
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263 | |
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264 | var aMap = this._CreateTableMap( aCells[0].parentNode.parentNode ) ; |
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265 | var iCellIndex = FCKTableHandler._GetCellIndexSpan( aMap, aCells[0].parentNode.rowIndex , aCells[0] ) ; |
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266 | |
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267 | var aCollCells = this._GetCollumnCells( aMap, iCellIndex ) ; |
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268 | |
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269 | for ( var i = 0 ; i < aCollCells.length ; i++ ) |
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270 | { |
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271 | if ( aCollCells[i] == aCells[0] ) |
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272 | { |
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273 | var oNewCell = this.InsertCell( aCells[0] ) ; |
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274 | if ( !isNaN( aCells[0].rowSpan ) && aCells[0].rowSpan > 1 ) |
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275 | oNewCell.rowSpan = aCells[0].rowSpan ; |
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276 | } |
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277 | else |
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278 | { |
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279 | if ( isNaN( aCollCells[i].colSpan ) ) |
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280 | aCollCells[i].colSpan = 2 ; |
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281 | else |
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282 | aCollCells[i].colSpan += 1 ; |
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283 | } |
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284 | } |
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285 | } |
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286 | |
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287 | // Get the cell index from a TableMap. |
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288 | FCKTableHandler._GetCellIndexSpan = function( tableMap, rowIndex, cell ) |
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289 | { |
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290 | if ( tableMap.length < rowIndex + 1 ) |
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291 | return null ; |
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292 | |
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293 | var oRow = tableMap[ rowIndex ] ; |
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294 | |
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295 | for ( var c = 0 ; c < oRow.length ; c++ ) |
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296 | { |
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297 | if ( oRow[c] == cell ) |
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298 | return c ; |
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299 | } |
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300 | |
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301 | return null ; |
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302 | } |
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303 | |
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304 | // Get the cells available in a collumn of a TableMap. |
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305 | FCKTableHandler._GetCollumnCells = function( tableMap, collumnIndex ) |
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306 | { |
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307 | var aCollCells = new Array() ; |
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308 | |
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309 | for ( var r = 0 ; r < tableMap.length ; r++ ) |
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310 | { |
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311 | var oCell = tableMap[r][collumnIndex] ; |
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312 | if ( oCell && ( aCollCells.length == 0 || aCollCells[ aCollCells.length - 1 ] != oCell ) ) |
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313 | aCollCells[ aCollCells.length ] = oCell ; |
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314 | } |
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315 | |
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316 | return aCollCells ; |
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317 | } |
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318 | |
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319 | // This function is quite hard to explain. It creates a matrix representing all cells in a table. |
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320 | // The difference here is that the "spanned" cells (colSpan and rowSpan) are duplicated on the matrix |
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321 | // cells that are "spanned". For example, a row with 3 cells where the second cell has colSpan=2 and rowSpan=3 |
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322 | // will produce a bi-dimensional matrix with the following values (representing the cells): |
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323 | // Cell1, Cell2, Cell2, Cell 3 |
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324 | // Cell4, Cell2, Cell2, Cell 5 |
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325 | FCKTableHandler._CreateTableMap = function( table ) |
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326 | { |
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327 | var aRows = table.rows ; |
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328 | |
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329 | // Row and Collumn counters. |
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330 | var r = -1 ; |
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331 | |
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332 | var aMap = new Array() ; |
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333 | |
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334 | for ( var i = 0 ; i < aRows.length ; i++ ) |
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335 | { |
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336 | r++ ; |
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337 | if ( !aMap[r] ) |
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338 | aMap[r] = new Array() ; |
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339 | |
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340 | var c = -1 ; |
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341 | |
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342 | for ( var j = 0 ; j < aRows[i].cells.length ; j++ ) |
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343 | { |
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344 | var oCell = aRows[i].cells[j] ; |
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345 | |
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346 | c++ ; |
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347 | while ( aMap[r][c] ) |
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348 | c++ ; |
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349 | |
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350 | var iColSpan = isNaN( oCell.colSpan ) ? 1 : oCell.colSpan ; |
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351 | var iRowSpan = isNaN( oCell.rowSpan ) ? 1 : oCell.rowSpan ; |
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352 | |
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353 | for ( var rs = 0 ; rs < iRowSpan ; rs++ ) |
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354 | { |
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355 | if ( !aMap[r + rs] ) |
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356 | aMap[r + rs] = new Array() ; |
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357 | |
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358 | for ( var cs = 0 ; cs < iColSpan ; cs++ ) |
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359 | { |
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360 | aMap[r + rs][c + cs] = aRows[i].cells[j] ; |
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361 | } |
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362 | } |
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363 | |
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364 | c += iColSpan - 1 ; |
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365 | } |
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366 | } |
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367 | return aMap ; |
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368 | } |
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369 | |
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370 | FCKTableHandler.ClearRow = function( tr ) |
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371 | { |
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372 | // Get the array of row's cells. |
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373 | var aCells = tr.cells ; |
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374 | |
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375 | // Replace the contents of each cell with "nothing". |
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376 | for ( var i = 0 ; i < aCells.length ; i++ ) |
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377 | { |
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378 | if ( FCKBrowserInfo.IsGecko ) |
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379 | aCells[i].innerHTML = GECKO_BOGUS ; |
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380 | else |
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381 | aCells[i].innerHTML = '' ; |
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382 | } |
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383 | } |
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