On-Demand loading and some of its side-effects #311
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added 9 commits
November 21, 2013 17:46
…ot not occupy space in the thumbnails-list. Otherwise with "thumbnails: lazy" and thumbs loaded at the beginning and the end of the container, the length of the "thumbnails"-container will be too short and the last thumbnails get pushed to the next line.
The option `thumbnails: 'ondemand'` can be set in order to load thumbnails when needed: * Thumbnails that are in the visible range of the thumbnails-view are loaded * Thumbnails, that are adjacent to the visible range (one carousel-width before or after) are loaded. * As the carousel moves, more thumbnails are loaded.
Conflicts: README.rst
…rection, even though too few images are displayed.
…e in the desired direction, even if to few images fit into it."
…y thumbnails This is a fix for commit "5ed3ca89748aa6302cd294f207696e2abb521266". This commit made sure that lazy loaded images are displayed "position:absolute" until they are loaded, in order to make sure they do not occupy space in the thumbscontainer. The side-effect was (in IE 10) that images where displayed for a short time in the left corner of the container after loading, until the position was set to "relative" in "_carousel.update()". This commit also uses the width of not-yet-loaded image containers for computing the total with of the thumbs-container and makes sure that these images get maximal height so that following images really have the expected position.
…" was configured. Bugfix: In some rare cases, updateCarousel() is called before any thumbs are loaded. In such a case, the load method lwas loading the previous images and images ahead, but the the current (i.e. the first) image.
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Hello,
we have implemented an on-demand loading scheme for thumbnails, which loads thumbnails visible in the thumbnails-list and one page ahead and back (in case the user intiially clicks on the to-the-left-button). Details are written in the README.
There was one issue with the lazy thumbnails occupying space before being ready (5ed3ca8) that had to be resolved for this to work properly.
I have only tested the 'ondemand'-feature with the classic theme, it should probably be marked as experimental in the documentation. However, for large image collections, it should reduce downloads from the server.