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398
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1 /* Copyright (C) 2003,2004 IT-Group MPIWG, WTWG Uni Bern and others
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2
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3 This program is free software; you can redistribute it and/or
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4 modify it under the terms of the GNU General Public License
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5 as published by the Free Software Foundation; either version 2
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6 of the License, or (at your option) any later version.
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7
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8 This program is distributed in the hope that it will be useful,
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program; if not, write to the Free Software
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15 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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16
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17 Authors:
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18 Christian Luginbuehl, 01.05.2003 (first version)
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19 DW 24.03.2004 (Changed for digiLib in Zope)
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20 Robert Casties, 2.11.2004
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407
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21 Martin Raspe, 12.12.2005 (changes for Digilib NG)
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398
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22
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23 */
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24
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407
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25 // was: function base_init() {
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433
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26 baseLibVersion = "2.006";
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407
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27 browserType = getBrowserType();
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398
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28
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29
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30 function getInt(n) {
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31 // returns always an integer
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32 n = parseInt(n);
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33 if (isNaN(n)) return 0;
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34 return n;
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35 }
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36
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37 function defined(x) {
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38 // returns if x is defined
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39 return (typeof arguments[0] != "undefined");
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40 }
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41
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42 function cropFloat(x) {
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43 // auxiliary function to crop senseless precision
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407
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44 return parseInt(10000 * x) / 10000;
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398
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45 }
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46
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47 function getBrowserType() {
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48 // browser sniffer
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49 var bt = Object();
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50 bt.doDHTML = false;
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51 bt.versIE = 0;
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52
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53 if ((! document.cssonly && document.layers) || document.all || document.getElementById) {
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54 var vers = navigator.appVersion.split('MSIE ');
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55 vers = vers[vers.length - 1];
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56 bt.versIE = getInt(vers);
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57 bt.isIE = navigator.userAgent.indexOf('MSIE') >= 0;
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58 bt.isMac = navigator.platform.indexOf('Mac') >= 0;
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59 bt.isWin = navigator.platform.indexOf('Win') >= 0;
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60 bt.isN4 = (navigator.userAgent.indexOf('Mozilla/4.') >= 0) && ! bt.isIE;
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61 bt.isIEWin = bt.versIE > 0 && bt.isWin;
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62 if (navigator.appVersion.indexOf('MSIE') < 0 || ! bt.isMac || bt.versIE >= 5) {
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63 bt.doDHTML = true;
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64 bt.isOpera = navigator.userAgent.indexOf(' Opera ') >= 0;
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65 bt.isKonq = navigator.userAgent.indexOf(' Konqueror') >= 0;
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66 }
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67 }
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68 return bt;
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69 }
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70
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71 // fixes for javascript < 1.2
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72 if (! Array.prototype.push) {
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73 Array.prototype.push = function(val) {
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74 this[this.length] = val;
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75 return this.length;
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76 }
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77 Array.prototype.pop = function() {
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78 var val = this[this.length-1];
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79 this.length -= 1;
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80 return val;
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81 }
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82 }
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83
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84
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85 /* **********************************************
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86 * geometry classes
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87 * ******************************************** */
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88
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89 /*
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90 * Size class
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91 */
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92 function Size(w, h) {
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93 this.width = parseFloat(w);
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94 this.height = parseFloat(h);
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95 return this;
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96 }
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97 Size.prototype.toString = function() {
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98 return this.width + "x" + this.height;
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99 }
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426
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100 Size.prototype.equals = function(other) {
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101 return (this.width == other.width
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102 && this.height == other.height)
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103 }
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398
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104
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105 /*
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106 * Position class
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107 */
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108 function Position(x, y) {
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109 this.x = parseFloat(x);
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110 this.y = parseFloat(y);
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111 return this;
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112 }
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113 Position.prototype.toString = function() {
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114 return this.x + "," + this.y;
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115 }
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426
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116 Position.prototype.equals = function(other) {
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117 return (this.x == other.x
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118 && this.y == other.y)
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119 }
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398
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120 /*
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121 * Rectangle class
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122 */
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123 function Rectangle(x, y, w, h) {
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124 this.x = parseFloat(x);
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125 this.y = parseFloat(y);
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126 this.width = parseFloat(w);
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127 this.height = parseFloat(h);
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128 return this;
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129 }
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130 Rectangle.prototype.toString = function() {
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131 return this.width+"x"+this.height+"@"+this.x+","+this.y;
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132 }
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133 Rectangle.prototype.copy = function() {
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134 // returns a copy of this Rectangle
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135 return new Rectangle(this.x, this.y, this.width, this.height);
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136 }
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137 Rectangle.prototype.getPosition = function() {
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138 // returns the position of this Rectangle
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139 return new Position(this.x, this.y);
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140 }
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433
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141 Rectangle.prototype.getPt1 = Rectangle.prototype.getPosition;
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142
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143 Rectangle.prototype.getPt2 = function() {
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144 // returns the second point position of this Rectangle
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145 return new Position(this.x + this.width, this.y + this.height);
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146 }
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147 Rectangle.prototype.setPt1 = function(pos) {
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148 // sets the first point to position pos
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149 this.x = pos.x;
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150 this.y = pos.y;
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151 return this;
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152 }
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153 Rectangle.prototype.setPt2 = function(pos) {
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154 // sets the second point to position pos
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155 this.width = pos.x - this.x;
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156 this.height = pos.y - this.y;
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157 return this;
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158 }
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159 Rectangle.prototype.getCenter = function() {
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160 // returns the center position of this Rectangle
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161 return new Position(this.x + this.width / 2, this.y + this.height / 2);
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162 }
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163 Rectangle.prototype.setCenter = function(pos) {
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164 // moves this Rectangle's center to position pos
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165 this.x = pos.x - this.width / 2;
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166 this.y = pos.y - this.height / 2;
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167 return this;
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168 }
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398
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169 Rectangle.prototype.getSize = function() {
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170 // returns the size of this Rectangle
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171 return new Size(this.width, this.height);
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172 }
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426
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173 Rectangle.prototype.equals = function(other) {
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174 // equal props
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175 return (this.getPosition().equals(other.getPosition())
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176 && this.getSize().equals(other.getSize())
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177 );
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178 }
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398
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179 Rectangle.prototype.getArea = function() {
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180 // returns the area of this Rectangle
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181 return (this.width * this.height);
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182 }
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433
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183 Rectangle.prototype.normalize = function() {
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184 // eliminates negative width and height
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185 var p = this.getPt2();
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186 this.x = Math.min(this.x, p.x);
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187 this.y = Math.min(this.y, p.y);
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188 this.width = Math.abs(this.width);
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189 this.height = Math.abs(this.height);
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190 return this;
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191 }
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398
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192 Rectangle.prototype.containsPosition = function(pos) {
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412
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193 // returns if Position "pos" lies inside of this rectangle
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194 return ((pos.x >= this.x)
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195 && (pos.y >= this.y)
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196 && (pos.x <= this.x + this.width)
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197 && (pos.y <= this.y + this.width)
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198 );
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199 }
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200 Rectangle.prototype.containsRect = function(rect) {
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201 // returns if rectangle "rect" is contained in this rectangle
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202 return (this.containsPosition(rect)
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203 && this.containsPosition(new Position(
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204 rect.x + rect.width,
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205 rect.y + rect.height
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206 )));
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207 }
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208 Rectangle.prototype.stayInside = function(rect) {
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209 // changes this rectangle's x/y values so it stays inside of rectangle rect
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433
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210 // keeping the proportions
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412
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211 if (this.x < rect.x) this.x = rect.x;
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212 if (this.y < rect.y) this.y = rect.y;
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213 if (this.x + this.width > rect.x + rect.width)
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214 this.x = rect.x + rect.width - this.width;
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215 if (this.y + this.height > rect.y + rect.height)
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216 this.y = rect.y + rect.height - this.height;
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217 return this;
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398
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218 }
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433
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219 Rectangle.prototype.clipTo = function(rect) {
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220 // clips this rectangle so it stays inside of rectangle rect
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221 p1 = rect.getPt1();
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222 p2 = rect.getPt2();
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223 this2 = this.getPt2();
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224 this.setPt1(new Position(Math.max(this.x, p1.x), Math.max(this.y, p1.y)));
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225 this.setPt2(new Position(Math.min(this2.x, p2.x), Math.min(this2.y, p2.y)));
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226 return this;
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227 }
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398
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228 Rectangle.prototype.intersect = function(rect) {
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229 // returns the intersection of the given Rectangle and this one
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412
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230 // FIX ME: not really, it should return null if there is no overlap
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398
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231 var sec = rect.copy();
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232 if (sec.x < this.x) {
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233 sec.width = sec.width - (this.x - sec.x);
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234 sec.x = this.x;
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235 }
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236 if (sec.y < this.y) {
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237 sec.height = sec.height - (this.y - sec.y);
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238 sec.y = this.y;
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239 }
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240 if (sec.x + sec.width > this.x + this.width) {
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241 sec.width = (this.x + this.width) - sec.x;
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242 }
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243 if (sec.y + sec.height > this.y + this.height) {
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244 sec.height = (this.y + this.height) - sec.y;
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245 }
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246 return sec;
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247 }
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248 Rectangle.prototype.fit = function(rect) {
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249 // returns a Rectangle that fits into this one (by moving first)
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250 var sec = rect.copy();
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251 sec.x = Math.max(sec.x, this.x);
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426
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252 sec.y = Math.max(sec.y, this.x);
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398
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253 if (sec.x + sec.width > this.x + this.width) {
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254 sec.x = this.x + this.width - sec.width;
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255 }
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256 if (sec.y + sec.height > this.y + this.height) {
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257 sec.y = this.y + this.height - sec.height;
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258 }
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259 return sec.intersect(this);
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260 }
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261
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262 /*
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263 * Transform class
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264 *
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265 * defines a class of affine transformations
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266 */
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267 function Transform() {
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268 this.m00 = 1.0;
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269 this.m01 = 0.0;
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270 this.m02 = 0.0;
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271 this.m10 = 0.0;
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272 this.m11 = 1.0;
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273 this.m12 = 0.0;
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274 this.m20 = 0.0;
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275 this.m21 = 0.0;
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276 this.m22 = 1.0;
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277 return this;
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278 }
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279 Transform.prototype.concat = function(traf) {
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280 // add Transform traf to this Transform
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281 for (var i = 0; i < 3; i++) {
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282 for (var j = 0; j < 3; j++) {
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283 var c = 0.0;
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284 for (var k = 0; k < 3; k++) {
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285 c += traf["m"+i+k] * this["m"+k+j];
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286 }
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287 this["m"+i+j] = c;
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288 }
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289 }
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290 return this;
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291 }
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292 Transform.prototype.transform = function(rect) {
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293 // returns transformed Rectangle or Position with this Transform applied
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294 var x = this.m00 * rect.x + this.m01 * rect.y + this.m02;
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295 var y = this.m10 * rect.x + this.m11 * rect.y + this.m12;
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296 if (rect.width) {
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297 var width = this.m00 * rect.width + this.m01 * rect.height;
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298 var height = this.m10 * rect.width + this.m11 * rect.height;
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299 return new Rectangle(x, y, width, height);
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300 }
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301 return new Position(x, y);
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302 }
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303 Transform.prototype.invtransform = function(pos) {
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304 // returns transformed Position pos with the inverse of this Transform applied
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305 var det = this.m00 * this.m11 - this.m01 * this.m10;
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306 var x = (this.m11 * pos.x - this.m01 * pos.y - this.m11 * this.m02 + this.m01 * this.m12) / det;
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307 var y = (- this.m10 * pos.x + this.m00 * pos.y + this.m10 * this.m02 - this.m00 * this.m12) / det;
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308 return new Position(x, y);
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309 }
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310 function getRotation(angle, pos) {
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311 // returns a Transform that is a rotation by angle degrees around [pos.x, pos.y]
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312 var traf = new Transform();
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313 if (angle != 0) {
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314 var t = 2.0 * Math.PI * parseFloat(angle) / 360.0;
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315 traf.m00 = Math.cos(t);
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316 traf.m01 = - Math.sin(t);
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317 traf.m10 = Math.sin(t);
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318 traf.m11 = Math.cos(t);
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319 traf.m02 = pos.x - pos.x * Math.cos(t) + pos.y * Math.sin(t);
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320 traf.m12 = pos.y - pos.x * Math.sin(t) - pos.y * Math.cos(t);
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321 }
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322 return traf;
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323 }
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324 function getTranslation(pos) {
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325 // returns a Transform that is a translation by [pos.x, pos,y]
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326 var traf = new Transform();
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327 traf.m02 = pos.x;
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328 traf.m12 = pos.y;
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329 return traf;
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330 }
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331 function getScale(size) {
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332 // returns a Transform that is a scale by [size.width, size.height]
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333 var traf = new Transform();
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334 traf.m00 = size.width;
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335 traf.m11 = size.height;
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336 return traf;
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337 }
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338
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339
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340 /* **********************************************
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341 * parameter routines
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342 * ******************************************** */
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407
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343 dlParams = new Object();
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398
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344
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345 function newParameter(name, defaultValue, detail) {
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346 // create a new parameter with a name and a default value
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347 if (!defined(dlParams[name])) dlParams[name] = new Object(); // no error condition
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348 //alert("Fatal: An object with name '" + name + "' already exists - cannot recreate!");
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349 //return false;
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350 dlParams[name].defaultValue = defaultValue;
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351 dlParams[name].hasValue = false;
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352 dlParams[name].value = defaultValue;
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353 dlParams[name].detail = detail;
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354 return dlParams[name];
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355 }
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356
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412
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357 function resetParameter(name) {
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358 // resets the given parameter to its default value
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359 if (!defined(dlParams[name])) {
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360 alert("Could not reset non-existing parameter '" + name + "'");
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361 return false;
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362 }
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363 dlParams[name].hasValue = false;
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364 dlParams[name].value = defaultValue;
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365 return dlParams[name];
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366 }
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367
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368 function deleteParameter(name) {
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369 // create a new parameter with a name and a default value
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370 if (!defined(dlParams[name])) return false;
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371 delete dlParams[name];
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372 return true;
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373 }
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374
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398
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375 function getParameter(name) {
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376 // returns the named parameter value or its default value
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407
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377 if (!defined(dlParams[name])) return null;
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378 if (dlParams[name].hasValue)
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412
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379 return dlParams[name].value;
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407
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380 else
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398
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381 return dlParams[name].defaultValue;
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382 }
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383
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384 function setParameter(name, value, relative) {
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385 // sets parameter value (relative values with +/- unless literal)
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412
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386 if (!defined(dlParams[name])) return null;
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387 var p = dlParams[name];
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388 if (relative && value.slice) {
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389 var sign = value.slice(0, 1);
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390 if (sign == '+') {
|
|
|
391 p.value = parseFloat(p.value) + parseFloat(value.slice(1));
|
|
|
392 } else if (sign == '-') {
|
|
|
393 p.value = parseFloat(p.value) - parseFloat(value.slice(1));
|
|
|
394 } else {
|
|
|
395 p.value = value;
|
|
|
396 }
|
|
|
397 } else p.value = value;
|
|
|
398 p.hasValue = true;
|
|
|
399 return p.value;
|
|
|
400 }
|
|
398
|
401
|
|
|
402 function hasParameter(name) {
|
|
412
|
403 // returns if the parameter's value has been set
|
|
|
404 if (!defined(dlParams[name])) return null;
|
|
|
405 return dlParams[name].hasValue;
|
|
|
406 }
|
|
398
|
407
|
|
|
408 function getAllParameters(detail) {
|
|
|
409 // returns a string of all parameters in query format
|
|
|
410 if (! detail) {
|
|
|
411 detail = 255;
|
|
|
412 }
|
|
|
413 var params = new Array();
|
|
|
414 for (param in dlParams) {
|
|
435
|
415 if (((dlParams[param].detail & detail) > 0)
|
|
|
416 && (dlParams[param].hasValue)) {
|
|
398
|
417 var val = getParameter(param);
|
|
|
418 if (val != "") {
|
|
|
419 params.push(param + "=" + val);
|
|
|
420 }
|
|
|
421 }
|
|
|
422 }
|
|
|
423 return params.join("&");
|
|
|
424 }
|
|
|
425
|
|
|
426 function parseParameters(query) {
|
|
|
427 // gets parameter values from query format string
|
|
|
428 var params = query.split("&");
|
|
|
429 for (var i = 0; i < params.length; i++) {
|
|
|
430 var keyval = params[i].split("=");
|
|
|
431 if (keyval.length == 2) {
|
|
|
432 setParameter(keyval[0], keyval[1]);
|
|
|
433 }
|
|
|
434 }
|
|
|
435 }
|
|
|
436
|
|
407
|
437 getQueryString = getAllParameters;
|
|
398
|
438
|
|
|
439 /* **********************************************
|
|
|
440 * HTML/DOM routines
|
|
|
441 * ******************************************** */
|
|
|
442
|
|
|
443 function getElement(tagid, quiet) {
|
|
|
444 // returns the element object with the id tagid
|
|
|
445 var e;
|
|
|
446 if (document.getElementById) {
|
|
|
447 e = document.getElementById(tagid);
|
|
|
448 } else if (document.all) {
|
|
|
449 alert("document.all!");
|
|
|
450 e = document.all[tagid];
|
|
|
451 } else if (document.layers) {
|
|
|
452 e = document.layers[tagid];
|
|
|
453 }
|
|
|
454 if (e) {
|
|
|
455 return e;
|
|
|
456 } else {
|
|
|
457 if (! quiet) {
|
|
|
458 alert("unable to find element: "+tagid);
|
|
|
459 }
|
|
|
460 return null;
|
|
|
461 }
|
|
|
462 }
|
|
|
463
|
|
|
464 function getElementPosition(elem) {
|
|
|
465 // returns a Position with the position of the element
|
|
|
466 var x = 0;
|
|
|
467 var y = 0;
|
|
|
468 if (defined(elem.offsetLeft)) {
|
|
|
469 var e = elem;
|
|
|
470 while (e) {
|
|
|
471 if (defined(e.clientLeft)) {
|
|
|
472 // special for IE
|
|
|
473 if (browserType.isMac) {
|
|
|
474 if (e.offsetParent.tagName == "BODY") {
|
|
|
475 // IE for Mac extraspecial
|
|
|
476 x += e.clientLeft;
|
|
|
477 y += e.clientTop;
|
|
|
478 break;
|
|
|
479 }
|
|
|
480 } else {
|
|
|
481 if ((e.tagName != "TABLE") && (e.tagName != "BODY")) {
|
|
|
482 x += e.clientLeft;
|
|
|
483 y += e.clientTop;
|
|
|
484 }
|
|
|
485 }
|
|
|
486 }
|
|
|
487 x += e.offsetLeft;
|
|
|
488 y += e.offsetTop;
|
|
|
489 e = e.offsetParent;
|
|
|
490 }
|
|
|
491 } else if (defined(elem.x)) {
|
|
|
492 x = elem.x;
|
|
|
493 y = elem.y;
|
|
|
494 } else if (defined(elem.pageX)) {
|
|
|
495 x = elem.pageX;
|
|
|
496 y = elem.pageY;
|
|
|
497 } else {
|
|
|
498 alert("unable to get position of "+elem+" (id:"+elem.id+")");
|
|
|
499 }
|
|
|
500 return new Position(getInt(x), getInt(y));
|
|
|
501 }
|
|
|
502
|
|
|
503 function getElementSize(elem) {
|
|
|
504 // returns a Rectangle with the size of the element
|
|
|
505 var width = 0;
|
|
|
506 var height = 0;
|
|
|
507 if (defined(elem.offsetWidth)) {
|
|
|
508 width = elem.offsetWidth;
|
|
|
509 height = elem.offsetHeight;
|
|
|
510 } else if (defined(elem.width)) {
|
|
|
511 width = elem.width;
|
|
|
512 height = elem.height;
|
|
|
513 } else if (defined(elem.clip.width)) {
|
|
|
514 width = elem.clip.width;
|
|
|
515 height = elem.clip.height;
|
|
|
516 } else {
|
|
|
517 alert("unable to get size of "+elem+" (id:"+elem.id+")");
|
|
|
518 }
|
|
|
519 return new Size(getInt(width), getInt(height));
|
|
|
520 }
|
|
|
521
|
|
|
522 function getElementRect(elem) {
|
|
|
523 // returns a Rectangle with the size and position of the element
|
|
412
|
524 // FIX ME: what about borders?
|
|
398
|
525 var pos = getElementPosition(elem);
|
|
|
526 var size = getElementSize(elem);
|
|
|
527 return new Rectangle(pos.x, pos.y, size.width, size.height);
|
|
|
528 }
|
|
|
529
|
|
|
530 function moveElement(elem, rect) {
|
|
|
531 // moves and sizes the element
|
|
|
532 if (elem.style) {
|
|
|
533 if (defined(rect.x)) {
|
|
|
534 elem.style.left = Math.round(rect.x) + "px";
|
|
|
535 elem.style.top = Math.round(rect.y) + "px";
|
|
|
536 }
|
|
|
537 if (defined(rect.width)) {
|
|
|
538 elem.style.width = Math.round(rect.width) + "px";
|
|
|
539 elem.style.height = Math.round(rect.height) + "px";
|
|
|
540 }
|
|
|
541 } else if (document.layers) {
|
|
|
542 if (defined(rect.x)) {
|
|
|
543 elem.pageX = getInt(rect.x);
|
|
|
544 elem.pageY = getInt(rect.y);
|
|
|
545 }
|
|
|
546 if (defined(rect.width)) {
|
|
|
547 elem.clip.width = getInt(rect.width);
|
|
|
548 elem.clip.height = getInt(rect.height);
|
|
|
549 }
|
|
|
550 } else {
|
|
|
551 alert("moveelement: no style nor layer property!");
|
|
|
552 return false;
|
|
|
553 }
|
|
|
554 return true;
|
|
|
555 }
|
|
|
556
|
|
|
557 function showElement(elem, show) {
|
|
|
558 // shows or hides the element
|
|
435
|
559 if (elem.style)
|
|
|
560 elem.style.visibility = show ? "visible" : "hidden";
|
|
|
561 } else if (defined(elem.visibility))
|
|
|
562 elem.visibility = show ? "show" : "hide";
|
|
|
563 } else
|
|
|
564 alert("showElement(): element has no style or layer property!");
|
|
398
|
565 return true;
|
|
|
566 }
|
|
|
567
|
|
|
568 function evtPosition(evt) {
|
|
|
569 // returns the on-screen Position of the Event
|
|
|
570 var x;
|
|
|
571 var y;
|
|
|
572 evt = (evt) ? evt : window.event;
|
|
|
573 if (!evt) {
|
|
435
|
574 alert("no event found! " + evt);
|
|
398
|
575 return;
|
|
435
|
576 }
|
|
398
|
577 if (defined(evt.pageX)) {
|
|
|
578 x = parseInt(evt.pageX);
|
|
|
579 y = parseInt(evt.pageY);
|
|
|
580 } else if (defined(evt.clientX)) {
|
|
435
|
581 x = parseInt(document.body.scrollLeft + evt.clientX);
|
|
|
582 y = parseInt(document.body.scrollTop + evt.clientY);
|
|
398
|
583 } else {
|
|
435
|
584 alert("evtPosition(): don't know how to deal with " + evt);
|
|
|
585 }
|
|
398
|
586 return new Position(x, y);
|
|
|
587 }
|
|
|
588
|
|
|
589 function registerEvent(type, elem, handler) {
|
|
412
|
590 // register the given event handler on the indicated element
|
|
|
591 if (elem.addEventListener) {
|
|
|
592 elem.addEventListener(type, handler, false); // bubble
|
|
|
593 }
|
|
|
594 else if (elem.attachEvent) {
|
|
|
595 elem.attachEvent("on" + type, handler);
|
|
|
596 }
|
|
|
597 else if (elem.captureEvents) {
|
|
|
598 if (Event) {
|
|
|
599 t = type.toUpperCase();
|
|
|
600 elem.captureEvents(Event[t]);
|
|
|
601 elem[ "on" + t ] = handler;
|
|
|
602 }
|
|
|
603 }
|
|
|
604 else {
|
|
|
605 alert("Could not register event of type " + type);
|
|
|
606 return false;
|
|
|
607 }
|
|
|
608 return true;
|
|
|
609 }
|
|
|
610
|
|
407
|
611 function unregisterEvent(type, elem, handler) {
|
|
412
|
612 // unregister the given event handler from the indicated element
|
|
|
613 if (elem.removeEventListener) {
|
|
|
614 elem.removeEventListener(type, handler, false);
|
|
|
615 }
|
|
|
616 else if (elem.detachEvent) {
|
|
|
617 elem.detachEvent('on' + type, handler);
|
|
|
618 }
|
|
|
619 else if (elem.releaseEvents) {
|
|
|
620 if (Event) {
|
|
|
621 t = type.toUpperCase();
|
|
|
622 elem.releaseEvents(Event[t]);
|
|
|
623 elem[ "on" + t ] = null;
|
|
|
624 }
|
|
|
625 }
|
|
|
626 else {
|
|
|
627 alert("Could not register event of type " + type);
|
|
|
628 return false;
|
|
|
629 }
|
|
|
630 return true;
|
|
398
|
631 }
|
|
|
632
|
|
407
|
633 function registerEventById(type, id, handler) {
|
|
412
|
634 registerEvent(type, document.getElementById(id), handler);
|
|
|
635 }
|
|
407
|
636
|
|
|
637 function unregisterEventById(type, id, handler) {
|
|
412
|
638 unregisterEvent(type, document.getElementById(id), handler);
|
|
|
639 }
|
|
407
|
640
|
|
|
641 function stopEvent(e) {
|
|
412
|
642 if (!e) var e = window.event;
|
|
|
643 e.cancelBubble = true;
|
|
|
644 if (e.stopPropagation) e.stopPropagation();
|
|
|
645 return false;
|
|
398
|
646 }
|
|
|
647
|
|
407
|
648 function getEventSrc(e) {
|
|
412
|
649 if (e.target) return e.target;
|
|
|
650 if (e.srcElement) return e.srcElement;
|
|
407
|
651 }
|
|
398
|
652
|
|
|
653 // old registerXXYY API for compatibility
|
|
|
654 function registerMouseDown(elem, handler) {
|
|
|
655 return registerEvent("mousedown", elem, handler);
|
|
|
656 }
|
|
|
657 function unregisterMouseDown(elem, handler) {
|
|
|
658 return unregisterEvent("mousedown", elem, handler);
|
|
|
659 }
|
|
|
660 function registerMouseMove(elem, handler) {
|
|
|
661 return registerEvent("mousemove", elem, handler);
|
|
|
662 }
|
|
|
663 function unregisterMouseMove(elem, handler) {
|
|
|
664 return unregisterEvent("mousemove", elem, handler);
|
|
|
665 }
|
|
|
666 function registerKeyDown(handler) {
|
|
|
667 return registerEvent("keypress", elem, handler);
|
|
|
668 }
|
|
|
669
|
|
|
670
|
|
|
671 function getWinSize() {
|
|
|
672 // returns a Size with the current window size (mostly from www.quirksmode.org)
|
|
|
673 var wsize = new Size(100, 100);
|
|
|
674 if (defined(self.innerHeight)) {
|
|
|
675 // all except Explorer
|
|
|
676 if ((self.innerWidth == 0)||(self.innerHeight == 0)) {
|
|
|
677 // Safari 1.2 bug
|
|
|
678 if (parent) {
|
|
|
679 parent.innerHeight;
|
|
|
680 parent.innerWidth;
|
|
|
681 }
|
|
|
682 }
|
|
|
683 wsize.width = self.innerWidth;
|
|
|
684 wsize.height = self.innerHeight;
|
|
|
685 } else if (document.documentElement && document.documentElement.clientHeight) {
|
|
|
686 // Explorer 6 Strict Mode
|
|
|
687 wsize.width = document.documentElement.clientWidth;
|
|
|
688 wsize.height = document.documentElement.clientHeight;
|
|
|
689 } else if (document.body) {
|
|
|
690 // other Explorers
|
|
|
691 wsize.width = document.body.clientWidth;
|
|
|
692 wsize.height = document.body.clientHeight;
|
|
|
693 }
|
|
|
694 return wsize;
|
|
|
695 }
|
|
|
696
|
|
433
|
697 function getWinRect() {
|
|
|
698 var size = getWinSize();
|
|
|
699 return new Rectangle(0, 0, size.width, size.height);
|
|
|
700 }
|
|
|
701
|
|
398
|
702 function openWin(url, name, params) {
|
|
|
703 // open browser window
|
|
|
704 var ow = window.open(url, name, params);
|
|
|
705 ow.focus();
|
|
|
706 }
|
|
433
|
707
|
|
|
708 /* **********************************************
|
|
|
709 * cookie class
|
|
|
710 * ******************************************** */
|
|
|
711
|
|
|
712 function Cookie() {
|
|
|
713 return this.read();
|
|
|
714 }
|
|
|
715
|
|
|
716 Cookie.prototype.read = function() {
|
|
|
717 var s = document.cookie;
|
|
435
|
718 var lines = s.split("; "); // semicolon and space for all browsers?
|
|
433
|
719 for (var i in lines) {
|
|
|
720 var line = lines[i];
|
|
|
721 var sep = line.indexOf("=");
|
|
|
722 if (sep != -1) this.add(
|
|
|
723 line.substr(0, sep),
|
|
|
724 line.substr(sep + 1)
|
|
|
725 );
|
|
|
726 }
|
|
|
727 return this;
|
|
|
728 }
|
|
|
729
|
|
|
730 Cookie.prototype.store = function() {
|
|
|
731 var lines = new Array();
|
|
|
732 for (var i in this) {
|
|
|
733 var item = this[i];
|
|
|
734 if (typeof(item) == typeof(lines)) // Array
|
|
|
735 lines.push(i + "=" + item.join(","));
|
|
|
736 else if (typeof(item) != "function") // single item
|
|
|
737 lines.push(i + "=" + item);
|
|
|
738 }
|
|
|
739 // var s = lines.join(";")
|
|
|
740 for (line in lines) document.cookie = lines[line];
|
|
|
741 return this;
|
|
|
742 }
|
|
|
743
|
|
|
744 Cookie.prototype.add = function(key, value) {
|
|
|
745 if (value.indexOf(",") == -1)
|
|
|
746 this[key] = value; // single value
|
|
|
747 else
|
|
|
748 this[key] = value.split(","); // list of values
|
|
|
749 return this[key];
|
|
|
750 }
|
|
|
751
|
|
|
752 Cookie.prototype.get = function(key) {
|
|
|
753 return this[key];
|
|
|
754 }
|
|
|
755
|
|
|
756 Cookie.prototype.addbool = function(key, value) {
|
|
|
757 this[key] = Boolean(value).toString();
|
|
|
758 return this[key];
|
|
|
759 }
|
|
|
760
|
|
|
761 Cookie.prototype.getbool = function(key) {
|
|
|
762 var val = this[key];
|
|
|
763 return (val > "") && (val != "0") && (val != "false");
|
|
|
764 }
|
|
|
765
|
|
|
766 Cookie.prototype.remove = function(key) {
|
|
|
767 delete this[key];
|
|
|
768 }
|
|
|
769
|
|
|
770 // :tabSize=4:indentSize=4:noTabs=true:
|
|
|
771
|
