1 | define([ |
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2 | "dojo/_base/declare", |
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3 | "dojo/_base/sniff", |
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4 | "dojo/dom-class" |
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5 | ], function(declare, has, domClass){ |
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6 | |
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7 | return declare('dojox.grid._ViewManager', null, { |
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8 | // summary: |
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9 | // A collection of grid views. Owned by grid and used internally for managing grid views. |
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10 | // description: |
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11 | // Grid creates views automatically based on grid's layout structure. |
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12 | // Users should typically not need to access individual views or the views collection directly. |
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13 | constructor: function(inGrid){ |
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14 | this.grid = inGrid; |
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15 | }, |
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16 | |
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17 | defaultWidth: 200, |
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18 | |
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19 | views: [], |
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20 | |
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21 | // operations |
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22 | resize: function(){ |
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23 | this.onEach("resize"); |
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24 | }, |
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25 | |
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26 | render: function(){ |
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27 | this.onEach("render"); |
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28 | }, |
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29 | |
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30 | // views |
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31 | addView: function(inView){ |
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32 | inView.idx = this.views.length; |
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33 | this.views.push(inView); |
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34 | }, |
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35 | |
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36 | destroyViews: function(){ |
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37 | for(var i=0, v; v=this.views[i]; i++){ |
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38 | v.destroy(); |
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39 | } |
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40 | this.views = []; |
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41 | }, |
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42 | |
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43 | getContentNodes: function(){ |
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44 | var nodes = []; |
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45 | for(var i=0, v; v=this.views[i]; i++){ |
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46 | nodes.push(v.contentNode); |
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47 | } |
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48 | return nodes; |
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49 | }, |
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50 | |
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51 | forEach: function(inCallback){ |
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52 | for(var i=0, v; v=this.views[i]; i++){ |
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53 | inCallback(v, i); |
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54 | } |
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55 | }, |
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56 | |
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57 | onEach: function(inMethod, inArgs){ |
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58 | inArgs = inArgs || []; |
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59 | for(var i=0, v; v=this.views[i]; i++){ |
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60 | if(inMethod in v){ |
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61 | v[inMethod].apply(v, inArgs); |
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62 | } |
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63 | } |
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64 | }, |
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65 | |
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66 | // layout |
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67 | normalizeHeaderNodeHeight: function(){ |
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68 | var rowNodes = []; |
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69 | for(var i=0, v; (v=this.views[i]); i++){ |
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70 | if(v.headerContentNode.firstChild){ |
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71 | rowNodes.push(v.headerContentNode); |
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72 | } |
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73 | } |
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74 | this.normalizeRowNodeHeights(rowNodes); |
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75 | }, |
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76 | |
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77 | normalizeRowNodeHeights: function(inRowNodes){ |
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78 | var h = 0; |
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79 | var currHeights = []; |
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80 | if(this.grid.rowHeight){ |
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81 | h = this.grid.rowHeight; |
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82 | }else{ |
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83 | if(inRowNodes.length <= 1){ |
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84 | // no need to normalize if we are the only one... |
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85 | return; |
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86 | } |
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87 | for(var i=0, n; (n=inRowNodes[i]); i++){ |
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88 | // We only care about the height - so don't use marginBox. This |
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89 | // depends on the container not having any margin (which it shouldn't) |
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90 | // Also - we only look up the height if the cell doesn't have the |
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91 | // dojoxGridNonNormalizedCell class (like for row selectors) |
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92 | if(!domClass.contains(n, "dojoxGridNonNormalizedCell")){ |
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93 | currHeights[i] = n.firstChild.offsetHeight; |
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94 | h = Math.max(h, currHeights[i]); |
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95 | } |
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96 | } |
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97 | h = (h >= 0 ? h : 0); |
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98 | |
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99 | //Work around odd FF3 rendering bug: #8864. |
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100 | //A one px increase fixes FireFox 3's rounding bug for fractional font sizes. |
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101 | if((has('mozilla') || has('ie') > 8 ) && h){h++;} |
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102 | } |
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103 | for(i=0; (n=inRowNodes[i]); i++){ |
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104 | if(currHeights[i] != h){ |
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105 | n.firstChild.style.height = h + "px"; |
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106 | } |
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107 | } |
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108 | }, |
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109 | |
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110 | resetHeaderNodeHeight: function(){ |
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111 | for(var i=0, v, n; (v=this.views[i]); i++){ |
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112 | n = v.headerContentNode.firstChild; |
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113 | if(n){ |
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114 | n.style.height = ""; |
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115 | } |
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116 | } |
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117 | }, |
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118 | |
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119 | renormalizeRow: function(inRowIndex){ |
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120 | var rowNodes = []; |
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121 | for(var i=0, v, n; (v=this.views[i])&&(n=v.getRowNode(inRowIndex)); i++){ |
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122 | n.firstChild.style.height = ''; |
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123 | rowNodes.push(n); |
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124 | } |
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125 | this.normalizeRowNodeHeights(rowNodes); |
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126 | }, |
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127 | |
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128 | getViewWidth: function(inIndex){ |
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129 | return this.views[inIndex].getWidth() || this.defaultWidth; |
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130 | }, |
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131 | |
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132 | // must be called after view widths are properly set or height can be miscalculated |
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133 | // if there are flex columns |
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134 | measureHeader: function(){ |
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135 | // need to reset view header heights so they are properly measured. |
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136 | this.resetHeaderNodeHeight(); |
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137 | this.forEach(function(inView){ |
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138 | inView.headerContentNode.style.height = ''; |
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139 | }); |
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140 | var h = 0; |
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141 | // calculate maximum view header height |
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142 | this.forEach(function(inView){ |
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143 | h = Math.max(inView.headerNode.offsetHeight, h); |
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144 | }); |
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145 | return h; |
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146 | }, |
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147 | |
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148 | measureContent: function(){ |
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149 | var h = 0; |
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150 | this.forEach(function(inView){ |
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151 | h = Math.max(inView.domNode.offsetHeight, h); |
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152 | }); |
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153 | return h; |
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154 | }, |
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155 | |
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156 | findClient: function(inAutoWidth){ |
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157 | // try to use user defined client |
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158 | var c = this.grid.elasticView || -1; |
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159 | // attempt to find implicit client |
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160 | if(c < 0){ |
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161 | for(var i=1, v; (v=this.views[i]); i++){ |
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162 | if(v.viewWidth){ |
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163 | for(i=1; (v=this.views[i]); i++){ |
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164 | if(!v.viewWidth){ |
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165 | c = i; |
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166 | break; |
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167 | } |
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168 | } |
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169 | break; |
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170 | } |
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171 | } |
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172 | } |
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173 | // client is in the middle by default |
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174 | if(c < 0){ |
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175 | c = Math.floor(this.views.length / 2); |
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176 | } |
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177 | return c; |
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178 | }, |
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179 | |
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180 | arrange: function(l, w){ |
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181 | var i, v, vw, len = this.views.length, self = this; |
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182 | // find the client |
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183 | var c = (w <= 0 ? len : this.findClient()); |
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184 | // layout views |
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185 | var setPosition = function(v, l){ |
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186 | var ds = v.domNode.style; |
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187 | var hs = v.headerNode.style; |
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188 | |
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189 | if(!self.grid.isLeftToRight()){ |
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190 | ds.right = l + 'px'; |
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191 | // fixed rtl, the scrollbar is on the right side in FF < 4 |
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192 | if(has('ff') < 4){ |
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193 | hs.right = l + v.getScrollbarWidth() + 'px'; |
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194 | }else{ |
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195 | hs.right = l + 'px'; |
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196 | } |
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197 | if(!has('webkit') && hs.width != 'auto'){ |
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198 | hs.width = parseInt(hs.width, 10) - v.getScrollbarWidth() + 'px'; |
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199 | } |
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200 | }else{ |
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201 | ds.left = l + 'px'; |
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202 | hs.left = l + 'px'; |
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203 | } |
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204 | ds.top = 0 + 'px'; |
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205 | hs.top = 0; |
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206 | }; |
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207 | // for views left of the client |
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208 | //BiDi TODO: The left and right should not appear in BIDI environment. Should be replaced with |
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209 | //leading and tailing concept. |
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210 | for(i=0; (v=this.views[i])&&(i<c); i++){ |
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211 | // get width |
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212 | vw = this.getViewWidth(i); |
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213 | // process boxes |
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214 | v.setSize(vw, 0); |
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215 | setPosition(v, l); |
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216 | if(v.headerContentNode && v.headerContentNode.firstChild){ |
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217 | vw = v.getColumnsWidth()+v.getScrollbarWidth(); |
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218 | }else{ |
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219 | vw = v.domNode.offsetWidth; |
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220 | } |
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221 | // update position |
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222 | l += vw; |
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223 | } |
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224 | // next view (is the client, i++ == c) |
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225 | i++; |
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226 | // start from the right edge |
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227 | var r = w; |
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228 | // for views right of the client (iterated from the right) |
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229 | for(var j=len-1; (v=this.views[j])&&(i<=j); j--){ |
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230 | // get width |
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231 | vw = this.getViewWidth(j); |
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232 | // set size |
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233 | v.setSize(vw, 0); |
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234 | // measure in pixels |
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235 | vw = v.domNode.offsetWidth; |
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236 | // update position |
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237 | r -= vw; |
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238 | // set position |
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239 | setPosition(v, r); |
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240 | } |
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241 | if(c<len){ |
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242 | v = this.views[c]; |
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243 | // position the client box between left and right boxes |
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244 | vw = Math.max(1, r-l); |
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245 | // set size |
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246 | v.setSize(vw + 'px', 0); |
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247 | setPosition(v, l); |
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248 | } |
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249 | return l; |
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250 | }, |
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251 | |
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252 | // rendering |
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253 | renderRow: function(inRowIndex, inNodes, skipRenorm){ |
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254 | var rowNodes = []; |
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255 | for(var i=0, v, n, rowNode; (v=this.views[i])&&(n=inNodes[i]); i++){ |
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256 | rowNode = v.renderRow(inRowIndex); |
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257 | n.appendChild(rowNode); |
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258 | rowNodes.push(rowNode); |
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259 | } |
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260 | if(!skipRenorm){ |
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261 | this.normalizeRowNodeHeights(rowNodes); |
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262 | } |
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263 | }, |
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264 | |
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265 | rowRemoved: function(inRowIndex){ |
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266 | this.onEach("rowRemoved", [ inRowIndex ]); |
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267 | }, |
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268 | |
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269 | // updating |
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270 | updateRow: function(inRowIndex, skipRenorm){ |
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271 | for(var i=0, v; v=this.views[i]; i++){ |
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272 | v.updateRow(inRowIndex); |
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273 | } |
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274 | if(!skipRenorm){ |
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275 | this.renormalizeRow(inRowIndex); |
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276 | } |
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277 | }, |
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278 | |
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279 | updateRowStyles: function(inRowIndex){ |
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280 | this.onEach("updateRowStyles", [ inRowIndex ]); |
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281 | }, |
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282 | |
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283 | // scrolling |
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284 | setScrollTop: function(inTop){ |
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285 | var top = inTop; |
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286 | for(var i=0, v; v=this.views[i]; i++){ |
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287 | top = v.setScrollTop(inTop); |
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288 | // Work around IE not firing scroll events that cause header offset |
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289 | // issues to occur. |
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290 | if(has('ie') && v.headerNode && v.scrollboxNode){ |
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291 | v.headerNode.scrollLeft = v.scrollboxNode.scrollLeft; |
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292 | } |
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293 | } |
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294 | return top; |
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295 | //this.onEach("setScrollTop", [ inTop ]); |
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296 | }, |
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297 | |
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298 | getFirstScrollingView: function(){ |
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299 | // summary: |
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300 | // Returns the first grid view with a scroll bar |
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301 | for(var i=0, v; (v=this.views[i]); i++){ |
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302 | if(v.hasHScrollbar() || v.hasVScrollbar()){ |
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303 | return v; |
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304 | } |
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305 | } |
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306 | return null; |
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307 | } |
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308 | }); |
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309 | }); |
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