1 | /* |
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2 | * Ext JS Library 2.2.1 |
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3 | * Copyright(c) 2006-2009, Ext JS, LLC. |
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4 | * licensing@extjs.com |
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5 | * |
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6 | * http://extjs.com/license |
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7 | */ |
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8 | |
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9 | /** |
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10 | * @class Ext.WindowGroup |
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11 | * An object that represents a group of {@link Ext.Window} instances and provides z-order management |
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12 | * and window activation behavior. |
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13 | * @constructor |
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14 | */ |
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15 | Ext.WindowGroup = function(){ |
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16 | var list = {}; |
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17 | var accessList = []; |
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18 | var front = null; |
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19 | |
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20 | // private |
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21 | var sortWindows = function(d1, d2){ |
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22 | return (!d1._lastAccess || d1._lastAccess < d2._lastAccess) ? -1 : 1; |
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23 | }; |
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24 | |
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25 | // private |
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26 | var orderWindows = function(){ |
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27 | var a = accessList, len = a.length; |
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28 | if(len > 0){ |
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29 | a.sort(sortWindows); |
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30 | var seed = a[0].manager.zseed; |
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31 | for(var i = 0; i < len; i++){ |
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32 | var win = a[i]; |
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33 | if(win && !win.hidden){ |
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34 | win.setZIndex(seed + (i*10)); |
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35 | } |
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36 | } |
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37 | } |
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38 | activateLast(); |
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39 | }; |
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40 | |
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41 | // private |
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42 | var setActiveWin = function(win){ |
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43 | if(win != front){ |
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44 | if(front){ |
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45 | front.setActive(false); |
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46 | } |
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47 | front = win; |
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48 | if(win){ |
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49 | win.setActive(true); |
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50 | } |
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51 | } |
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52 | }; |
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53 | |
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54 | // private |
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55 | var activateLast = function(){ |
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56 | for(var i = accessList.length-1; i >=0; --i) { |
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57 | if(!accessList[i].hidden){ |
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58 | setActiveWin(accessList[i]); |
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59 | return; |
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60 | } |
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61 | } |
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62 | // none to activate |
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63 | setActiveWin(null); |
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64 | }; |
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65 | |
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66 | return { |
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67 | /** |
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68 | * The starting z-index for windows (defaults to 9000) |
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69 | * @type Number The z-index value |
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70 | */ |
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71 | zseed : 9000, |
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72 | |
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73 | // private |
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74 | register : function(win){ |
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75 | list[win.id] = win; |
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76 | accessList.push(win); |
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77 | win.on('hide', activateLast); |
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78 | }, |
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79 | |
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80 | // private |
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81 | unregister : function(win){ |
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82 | delete list[win.id]; |
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83 | win.un('hide', activateLast); |
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84 | accessList.remove(win); |
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85 | }, |
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86 | |
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87 | /** |
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88 | * Gets a registered window by id. |
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89 | * @param {String/Object} id The id of the window or a {@link Ext.Window} instance |
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90 | * @return {Ext.Window} |
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91 | */ |
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92 | get : function(id){ |
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93 | return typeof id == "object" ? id : list[id]; |
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94 | }, |
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95 | |
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96 | /** |
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97 | * Brings the specified window to the front of any other active windows. |
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98 | * @param {String/Object} win The id of the window or a {@link Ext.Window} instance |
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99 | * @return {Boolean} True if the dialog was brought to the front, else false |
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100 | * if it was already in front |
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101 | */ |
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102 | bringToFront : function(win){ |
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103 | win = this.get(win); |
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104 | if(win != front){ |
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105 | win._lastAccess = new Date().getTime(); |
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106 | orderWindows(); |
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107 | return true; |
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108 | } |
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109 | return false; |
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110 | }, |
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111 | |
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112 | /** |
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113 | * Sends the specified window to the back of other active windows. |
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114 | * @param {String/Object} win The id of the window or a {@link Ext.Window} instance |
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115 | * @return {Ext.Window} The window |
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116 | */ |
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117 | sendToBack : function(win){ |
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118 | win = this.get(win); |
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119 | win._lastAccess = -(new Date().getTime()); |
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120 | orderWindows(); |
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121 | return win; |
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122 | }, |
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123 | |
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124 | /** |
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125 | * Hides all windows in the group. |
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126 | */ |
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127 | hideAll : function(){ |
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128 | for(var id in list){ |
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129 | if(list[id] && typeof list[id] != "function" && list[id].isVisible()){ |
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130 | list[id].hide(); |
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131 | } |
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132 | } |
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133 | }, |
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134 | |
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135 | /** |
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136 | * Gets the currently-active window in the group. |
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137 | * @return {Ext.Window} The active window |
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138 | */ |
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139 | getActive : function(){ |
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140 | return front; |
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141 | }, |
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142 | |
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143 | /** |
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144 | * Returns zero or more windows in the group using the custom search function passed to this method. |
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145 | * The function should accept a single {@link Ext.Window} reference as its only argument and should |
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146 | * return true if the window matches the search criteria, otherwise it should return false. |
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147 | * @param {Function} fn The search function |
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148 | * @param {Object} scope (optional) The scope in which to execute the function (defaults to the window |
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149 | * that gets passed to the function if not specified) |
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150 | * @return {Array} An array of zero or more matching windows |
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151 | */ |
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152 | getBy : function(fn, scope){ |
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153 | var r = []; |
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154 | for(var i = accessList.length-1; i >=0; --i) { |
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155 | var win = accessList[i]; |
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156 | if(fn.call(scope||win, win) !== false){ |
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157 | r.push(win); |
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158 | } |
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159 | } |
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160 | return r; |
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161 | }, |
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162 | |
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163 | /** |
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164 | * Executes the specified function once for every window in the group, passing each |
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165 | * window as the only parameter. Returning false from the function will stop the iteration. |
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166 | * @param {Function} fn The function to execute for each item |
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167 | * @param {Object} scope (optional) The scope in which to execute the function |
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168 | */ |
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169 | each : function(fn, scope){ |
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170 | for(var id in list){ |
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171 | if(list[id] && typeof list[id] != "function"){ |
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172 | if(fn.call(scope || list[id], list[id]) === false){ |
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173 | return; |
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174 | } |
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175 | } |
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176 | } |
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177 | } |
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178 | }; |
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179 | }; |
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180 | |
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181 | |
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182 | /** |
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183 | * @class Ext.WindowMgr |
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184 | * @extends Ext.WindowGroup |
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185 | * The default global window group that is available automatically. To have more than one group of windows |
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186 | * with separate z-order stacks, create additional instances of {@link Ext.WindowGroup} as needed. |
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187 | * @singleton |
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188 | */ |
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189 | Ext.WindowMgr = new Ext.WindowGroup(); |
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