1 | define([ |
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2 | "dojo/_base/array", |
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3 | "dojo/_base/config", |
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4 | "dojo/_base/connect", |
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5 | "dojo/_base/event", |
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6 | "dojo/_base/lang", |
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7 | "dojo/_base/window", |
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8 | "dojo/dom-class", |
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9 | "dojo/dom-construct", |
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10 | "dojo/dom-style", |
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11 | "./sniff" |
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12 | ], function(array, config, connect, event, lang, win, domClass, domConstruct, domStyle, has){ |
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13 | |
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14 | var dm = lang.getObject("dojox.mobile", true); |
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15 | |
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16 | // module: |
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17 | // dojox/mobile/iconUtils |
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18 | |
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19 | var IconUtils = function(){ |
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20 | // summary: |
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21 | // Utilities to create an icon (image, CSS sprite image, or DOM Button). |
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22 | |
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23 | this.setupSpriteIcon = function(/*DomNode*/iconNode, /*String*/iconPos){ |
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24 | // summary: |
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25 | // Sets up CSS sprite for a foreground image. |
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26 | if(iconNode && iconPos){ |
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27 | var arr = array.map(iconPos.split(/[ ,]/),function(item){return item-0}); |
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28 | var t = arr[0]; // top |
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29 | var r = arr[1] + arr[2]; // right |
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30 | var b = arr[0] + arr[3]; // bottom |
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31 | var l = arr[1]; // left |
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32 | domStyle.set(iconNode, { |
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33 | position: "absolute", |
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34 | clip: "rect("+t+"px "+r+"px "+b+"px "+l+"px)", |
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35 | top: (iconNode.parentNode ? domStyle.get(iconNode, "top") : 0) - t + "px", |
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36 | left: -l + "px" |
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37 | }); |
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38 | domClass.add(iconNode, "mblSpriteIcon"); |
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39 | } |
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40 | }; |
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41 | |
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42 | this.createDomButton = function(/*DomNode*/refNode, /*Object?*/style, /*DomNode?*/toNode){ |
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43 | // summary: |
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44 | // Creates a DOM button. |
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45 | // description: |
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46 | // DOM button is a simple graphical object that consists of one or |
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47 | // more nested DIV elements with some CSS styling. It can be used |
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48 | // in place of an icon image on ListItem, IconItem, and so on. |
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49 | // The kind of DOM button to create is given as a class name of |
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50 | // refNode. The number of DIVs to create is searched from the style |
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51 | // sheets in the page. However, if the class name has a suffix that |
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52 | // starts with an underscore, like mblDomButtonGoldStar_5, then the |
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53 | // suffixed number is used instead. A class name for DOM button |
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54 | // must starts with 'mblDomButton'. |
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55 | // refNode: |
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56 | // A node that has a DOM button class name. |
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57 | // style: |
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58 | // A hash object to set styles to the node. |
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59 | // toNode: |
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60 | // A root node to create a DOM button. If omitted, refNode is used. |
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61 | |
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62 | if(!this._domButtons){ |
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63 | if(has("webkit")){ |
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64 | var findDomButtons = function(sheet, dic){ |
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65 | // summary: |
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66 | // Searches the style sheets for DOM buttons. |
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67 | // description: |
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68 | // Returns a key-value pair object whose keys are DOM |
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69 | // button class names and values are the number of DOM |
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70 | // elements they need. |
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71 | var i, j; |
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72 | if(!sheet){ |
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73 | var _dic = {}; |
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74 | var ss = win.doc.styleSheets; |
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75 | for (i = 0; i < ss.length; i++){ |
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76 | ss[i] && findDomButtons(ss[i], _dic); |
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77 | } |
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78 | return _dic; |
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79 | } |
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80 | var rules = sheet.cssRules || []; |
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81 | for (i = 0; i < rules.length; i++){ |
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82 | var rule = rules[i]; |
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83 | if(rule.href && rule.styleSheet){ |
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84 | findDomButtons(rule.styleSheet, dic); |
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85 | }else if(rule.selectorText){ |
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86 | var sels = rule.selectorText.split(/,/); |
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87 | for (j = 0; j < sels.length; j++){ |
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88 | var sel = sels[j]; |
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89 | var n = sel.split(/>/).length - 1; |
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90 | if(sel.match(/(mblDomButton\w+)/)){ |
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91 | var cls = RegExp.$1; |
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92 | if(!dic[cls] || n > dic[cls]){ |
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93 | dic[cls] = n; |
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94 | } |
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95 | } |
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96 | } |
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97 | } |
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98 | } |
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99 | return dic; |
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100 | } |
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101 | this._domButtons = findDomButtons(); |
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102 | }else{ |
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103 | this._domButtons = {}; |
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104 | } |
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105 | } |
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106 | |
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107 | var s = refNode.className; |
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108 | var node = toNode || refNode; |
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109 | if(s.match(/(mblDomButton\w+)/) && s.indexOf("/") === -1){ |
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110 | var btnClass = RegExp.$1; |
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111 | var nDiv = 4; |
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112 | if(s.match(/(mblDomButton\w+_(\d+))/)){ |
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113 | nDiv = RegExp.$2 - 0; |
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114 | }else if(this._domButtons[btnClass] !== undefined){ |
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115 | nDiv = this._domButtons[btnClass]; |
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116 | } |
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117 | var props = null; |
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118 | if(has("bb") && config["mblBBBoxShadowWorkaround"] !== false){ |
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119 | // Removes box-shadow because BlackBerry incorrectly renders it. |
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120 | props = {style:"-webkit-box-shadow:none"}; |
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121 | } |
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122 | for(var i = 0, p = node; i < nDiv; i++){ |
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123 | p = p.firstChild || domConstruct.create("div", props, p); |
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124 | } |
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125 | if(toNode){ |
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126 | setTimeout(function(){ |
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127 | domClass.remove(refNode, btnClass); |
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128 | }, 0); |
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129 | domClass.add(toNode, btnClass); |
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130 | } |
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131 | }else if(s.indexOf(".") !== -1){ // file name |
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132 | domConstruct.create("img", {src:s}, node); |
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133 | }else{ |
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134 | return null; |
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135 | } |
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136 | domClass.add(node, "mblDomButton"); |
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137 | !!style && domStyle.set(node, style); |
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138 | return node; |
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139 | }; |
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140 | |
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141 | this.createIcon = function(/*String*/icon, /*String?*/iconPos, /*DomNode?*/node, /*String?*/title, /*DomNode?*/parent, /*DomNode?*/refNode, /*String?*/pos){ |
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142 | // summary: |
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143 | // Creates or updates an icon node |
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144 | // description: |
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145 | // If node exists, updates the existing node. Otherwise, creates a new one. |
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146 | // icon: |
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147 | // Path for an image, or DOM button class name. |
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148 | title = title || ""; |
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149 | if(icon && icon.indexOf("mblDomButton") === 0){ |
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150 | // DOM button |
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151 | if(!node){ |
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152 | node = domConstruct.create("div", null, refNode || parent, pos); |
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153 | }else{ |
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154 | if(node.className.match(/(mblDomButton\w+)/)){ |
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155 | domClass.remove(node, RegExp.$1); |
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156 | } |
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157 | } |
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158 | node.title = title; |
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159 | domClass.add(node, icon); |
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160 | this.createDomButton(node); |
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161 | }else if(icon && icon !== "none"){ |
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162 | // Image |
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163 | if(!node || node.nodeName !== "IMG"){ |
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164 | node = domConstruct.create("img", { |
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165 | alt: title |
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166 | }, refNode || parent, pos); |
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167 | } |
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168 | node.src = (icon || "").replace("${theme}", dm.currentTheme); |
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169 | this.setupSpriteIcon(node, iconPos); |
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170 | if(iconPos && parent){ |
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171 | var arr = iconPos.split(/[ ,]/); |
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172 | domStyle.set(parent, { |
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173 | position: "relative", |
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174 | width: arr[2] + "px", |
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175 | height: arr[3] + "px" |
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176 | }); |
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177 | domClass.add(parent, "mblSpriteIconParent"); |
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178 | } |
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179 | connect.connect(node, "ondragstart", event, "stop"); |
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180 | } |
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181 | return node; |
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182 | }; |
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183 | |
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184 | this.iconWrapper = false; |
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185 | this.setIcon = function(/*String*/icon, /*String*/iconPos, /*DomNode*/iconNode, /*String?*/alt, /*DomNode*/parent, /*DomNode?*/refNode, /*String?*/pos){ |
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186 | // summary: |
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187 | // A setter function to set an icon. |
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188 | // description: |
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189 | // This function is intended to be used by icon setters (e.g. _setIconAttr) |
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190 | // icon: |
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191 | // An icon path or a DOM button class name. |
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192 | // iconPos: |
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193 | // The position of an aggregated icon. IconPos is comma separated |
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194 | // values like top,left,width,height (ex. "0,0,29,29"). |
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195 | // iconNode: |
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196 | // An icon node. |
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197 | // alt: |
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198 | // An alt text for the icon image. |
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199 | // parent: |
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200 | // Parent node of the icon. |
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201 | // refNode: |
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202 | // A node reference to place the icon. |
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203 | // pos: |
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204 | // The position of the icon relative to refNode. |
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205 | if(!parent || !icon && !iconNode){ return null; } |
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206 | if(icon && icon !== "none"){ // create or update an icon |
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207 | if(!this.iconWrapper && icon.indexOf("mblDomButton") !== 0 && !iconPos){ // image |
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208 | if(iconNode && iconNode.tagName === "DIV"){ |
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209 | domConstruct.destroy(iconNode); |
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210 | iconNode = null; |
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211 | } |
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212 | iconNode = this.createIcon(icon, null, iconNode, alt, parent, refNode, pos); |
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213 | domClass.add(iconNode, "mblImageIcon"); |
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214 | }else{ // sprite or DOM button |
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215 | if(iconNode && iconNode.tagName === "IMG"){ |
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216 | domConstruct.destroy(iconNode); |
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217 | iconNode = null; |
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218 | } |
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219 | iconNode && domConstruct.empty(iconNode); |
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220 | if(!iconNode){ |
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221 | iconNode = domConstruct.create("div", null, refNode || parent, pos); |
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222 | } |
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223 | this.createIcon(icon, iconPos, null, null, iconNode); |
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224 | if(alt){ |
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225 | iconNode.title = alt; |
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226 | } |
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227 | } |
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228 | domClass.remove(parent, "mblNoIcon"); |
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229 | return iconNode; |
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230 | }else{ // clear the icon |
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231 | domConstruct.destroy(iconNode); |
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232 | domClass.add(parent, "mblNoIcon"); |
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233 | return null; |
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234 | } |
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235 | }; |
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236 | }; |
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237 | |
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238 | // Return singleton. (TODO: can we replace IconUtils class and singleton w/a simple hash of functions?) |
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239 | return new IconUtils(); |
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240 | }); |
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