Code source wiki de Tag Cloud
Modifié par Jean-Vincent Drean le 2010/01/07 13:56
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| author | version | line-number | content |
|---|---|---|---|
| 1 | {{velocity}} | ||
| 2 | ## | ||
| 3 | ## Tag cloud. | ||
| 4 | ## | ||
| 5 | ## @param tagCloudSpace - the space to display the tag cloud for. If blank, display cloud for the whole wiki. Default is blank. | ||
| 6 | ## | ||
| 7 | ## Configurable popularity levels. You must an even number of levels. Default: 6. | ||
| 8 | ## | ||
| 9 | #set ($popularityLevels = ["notPopular", "notVeryPopular", "somewhatPopular", "popular", "veryPopular", "ultraPopular"]) | ||
| 10 | $xwiki.ssx.use("XWiki.TagCloud") | ||
| 11 | ## | ||
| 12 | ## Get tag count map. Key: tag, value: number of occurrences. | ||
| 13 | ## Store the minimum number of occurrences for a tag. | ||
| 14 | ## Store the maximum number of occurrences for a tag. | ||
| 15 | ## | ||
| 16 | #set ($tagCount = $xwiki.tag.getTagCount("$!tagCloudSpace")) | ||
| 17 | #set ($sortedTagCounts = $sorttool.sort($tagCount.values())) | ||
| 18 | #set ($maxIndex = $sortedTagCounts.size() - 1) | ||
| 19 | #set ($minCount = $listtool.get($sortedTagCounts, 0)) | ||
| 20 | #set ($maxCount = $listtool.get($sortedTagCounts, $maxIndex)) | ||
| 21 | ## | ||
| 22 | ## Calculate the total number of tags in the wiki. | ||
| 23 | ## | ||
| 24 | #set ($totalTagNumber = 0) | ||
| 25 | #foreach ($currentTagCount in $sortedTagCounts) | ||
| 26 | #set ($totalTagNumber = $totalTagNumber + $currentTagCount) | ||
| 27 | #end | ||
| 28 | ## | ||
| 29 | ## Build popularity map using the difference between minimum maximum tag occurrences counts | ||
| 30 | ## and the average tag occurences count. | ||
| 31 | ## | ||
| 32 | #set ($countAverage = $mathtool.div($totalTagNumber, $tagCount.size())) | ||
| 33 | #set ($levelsHalf = $popularityLevels.size() / 2) | ||
| 34 | #set ($firstHalfCountDelta = $mathtool.sub($countAverage, $minCount)) | ||
| 35 | #set ($secondHalfCountDelta = $mathtool.sub($maxCount, $countAverage)) | ||
| 36 | #set ($popularityMap = $util.getHashMap()) | ||
| 37 | #set ($firstHalfIntervalSize = $mathtool.div($firstHalfCountDelta, $levelsHalf)) | ||
| 38 | #set ($secondHalfIntervalSize = $mathtool.div($secondHalfCountDelta, $levelsHalf)) | ||
| 39 | #set ($previousPopularityMax = $minCount) | ||
| 40 | #set ($intervalSize = $firstHalfIntervalSize) | ||
| 41 | #set ($halfPassed = false) | ||
| 42 | #foreach ($popularityLevel in $popularityLevels) | ||
| 43 | #if ($velocityCount > $levelsHalf && !$halfPassed) | ||
| 44 | #set ($intervalSize = $secondHalfIntervalSize) | ||
| 45 | #set ($halfPassed = true) | ||
| 46 | #end | ||
| 47 | #set ($currentPopularityMax = $mathtool.add($previousPopularityMax, $intervalSize)) | ||
| 48 | #set ($discard = $popularityMap.put($currentPopularityMax, $popularityLevel)) | ||
| 49 | #set ($previousPopularityMax = $currentPopularityMax) | ||
| 50 | #end | ||
| 51 | ## | ||
| 52 | ## Display tag cloud. | ||
| 53 | ## | ||
| 54 | {{html}} | ||
| 55 | #if ($tagCount.size() > 0) | ||
| 56 | <ol class="tagCloud"> | ||
| 57 | #foreach($tag in $tagCount.keySet()) | ||
| 58 | ## This hackish loop could be made simpler with #break (introduced in velocity 1.6) | ||
| 59 | #set($classSet = false) | ||
| 60 | #foreach($popularityMax in $sorttool.sort($popularityMap.keySet())) | ||
| 61 | #if($tagCount.get($tag) > $popularityMax) | ||
| 62 | ## Tag already processed | ||
| 63 | #elseif(!$classSet) | ||
| 64 | #set($liClass = $popularityMap.get($popularityMax)) | ||
| 65 | #set($classSet = true) | ||
| 66 | #end | ||
| 67 | #end | ||
| 68 | <li class="$liClass"><a class="tag" href="$xwiki.getURL("Main.Tags", "view", "do=viewTag&tag=$tag")" title="$msg.get("xe.tag.tooltip", ["${tagCount.get($tag)}"])">$tag</a></li> | ||
| 69 | #end | ||
| 70 | </ol> | ||
| 71 | #else | ||
| 72 | #if("$!tagCloudSpace" == "") | ||
| 73 | $msg.get("xe.tag.notags") | ||
| 74 | #else | ||
| 75 | $msg.get("xe.tag.notagsforspace", ["$tagCloudSpace"]) | ||
| 76 | #end | ||
| 77 | #end | ||
| 78 | {{/html}} | ||
| 79 | {{/velocity}} |