gitweb: make actual changeset entries have backgrounds on /graph This patch removes a separate container for backgrounds only and puts backgrounds on changeset elements themselves. This makes it so that JS code doesn't need to create background elements separately anymore. There's a bit of manipulating positions of elements: every changeset entry has a "fg" element that gets a higher z-index than <canvas> element. This prioritizes text information, so that even if it somehow gets close to the graph drawn on <canvas> (which has z-index of 5), it'll still be on top of it. This can happen if commit message has a long first line and browser window is narrow, for example.

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<li class="parity{parity}" data-node="{node|short}">

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 <div class="fg">

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  <span class="desc">

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   <a class="list" href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}"><b>{desc|strip|firstline|escape|nonempty}</b></a>

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  </span>

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  {alltags}

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  <div class="info">{date|age}, by {author|person}</div>

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 </div>

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</li>