| 1 | |
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| 2 | /** |
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| 3 | * General use custom tags. |
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| 4 | * Some are taken from http://www.grails.org/Contribute+a+Tag#checkBoxList |
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| 5 | */ |
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| 6 | class CustomTagLib { |
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| 7 | static namespace = 'custom' |
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| 8 | |
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| 9 | def resources = { attrs -> |
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| 10 | ///@todo: should include our javascript and do setup here. |
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| 11 | } |
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| 12 | |
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| 13 | /** |
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| 14 | * Checkbox list that can be used as a more user-friendly alternative to a multiselect list box. |
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| 15 | * Usage: |
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| 16 | * To map the selected ids to corresponding domain objects, |
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| 17 | * an additional set method is required in the containing domain class: |
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| 18 | * // This additional setter is used to convert the checkBoxList string |
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| 19 | * // of ids selected to the corresponding domain objects. |
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| 20 | * public void setAssetSubItemsFromCheckBoxList(ids) { |
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| 21 | * def idList = [] |
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| 22 | * ids.each() { |
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| 23 | * if(it.isInteger()) |
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| 24 | * idList << it.toInteger() |
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| 25 | * } |
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| 26 | * this.assetSubItems = idList.collect { AssetSubItem.get( it ) } |
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| 27 | * } |
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| 28 | * Then a line in the controller: |
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| 29 | * assetInstance.setAssetSubItemsFromCheckBoxList(params.assetSubItems) |
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| 30 | */ |
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| 31 | def checkBoxList = {attrs, body -> |
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| 32 | |
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| 33 | def from = attrs.from |
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| 34 | def value = attrs.value |
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| 35 | def cname = attrs.name |
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| 36 | def isChecked, ht, wd, style, html |
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| 37 | |
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| 38 | // sets the style to override height and/or width if either of them |
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| 39 | // is specified, else the default from the CSS is taken |
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| 40 | style = "style='" |
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| 41 | if(attrs.height) |
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| 42 | style += "height:${attrs.height};" |
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| 43 | if(attrs.width) |
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| 44 | style += "width:${attrs.width};" |
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| 45 | if(style.length() == "style='".length()) |
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| 46 | style = "" |
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| 47 | else |
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| 48 | style += "'" // closing single quote |
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| 49 | |
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| 50 | html = "<ul class='CheckBoxList' " + style + ">" |
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| 51 | |
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| 52 | out << html |
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| 53 | |
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| 54 | from.each { obj -> |
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| 55 | |
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| 56 | // if we wanted to select the checkbox using a click anywhere on the label (also hover effect) |
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| 57 | // but grails does not recognize index suffix in the name as an array: |
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| 58 | // cname = "${attrs.name}[${idx++}]" |
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| 59 | // and put this inside the li: <label for='$cname'>...</label> |
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| 60 | |
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| 61 | isChecked = (value?.contains(obj."${attrs.optionKey}"))? true: false |
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| 62 | |
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| 63 | out << "<li>" << checkBox(name:cname, value:obj."${attrs.optionKey}", checked: isChecked) << " ${obj.id} - ${obj.name}" << "</li>" |
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| 64 | } |
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| 65 | |
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| 66 | out << "</ul>" |
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| 67 | |
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| 68 | } // checkBoxList |
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| 69 | |
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| 70 | } // end class |
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