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author | Brett Profitt <brett.profitt@gmail.com> | 2011-10-23 11:49:27 -0700 |
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committer | Brett Profitt <brett.profitt@gmail.com> | 2011-10-23 11:49:27 -0700 |
commit | 1b179e3dd38c98959dd95ee42af14d1a32ab2481 (patch) | |
tree | 03b01479a9cf2ca87563f6d14c08dfb3026bdb6e /js/lib/avatar_cropper.js | |
parent | 75f971f3f4dc2517cf4ec18fe29f12f3d3e8d30a (diff) | |
download | elgg-1b179e3dd38c98959dd95ee42af14d1a32ab2481.tar.gz elgg-1b179e3dd38c98959dd95ee42af14d1a32ab2481.tar.bz2 |
Fixes #3914. Pulled avatar code out into its own library.
Diffstat (limited to 'js/lib/avatar_cropper.js')
-rw-r--r-- | js/lib/avatar_cropper.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/lib/avatar_cropper.js b/js/lib/avatar_cropper.js new file mode 100644 index 000000000..bfd76225b --- /dev/null +++ b/js/lib/avatar_cropper.js @@ -0,0 +1,50 @@ +/** + * Avatar cropping + */ + +elgg.provide('elgg.avatarCropper'); + +/** + * Register the avatar cropper. + */ +elgg.avatarCropper.init = function() { + $('#user-avatar-cropper').imgAreaSelect({ + selectionOpacity: 0, + aspectRatio: '1:1', + onSelectEnd: elgg.avatarCropper.selectChange, + onSelectChange: elgg.avatarCropper.preview + }); +} + +/** + * Handler for changing select area. + */ +elgg.avatarCropper.preview = function(img, selection) { + // catch for the first click on the image + if (selection.width == 0 || selection.height == 0) { + return; + } + + var origWidth = $("#user-avatar-cropper").width(); + var origHeight = $("#user-avatar-cropper").height(); + var scaleX = 100 / selection.width; + var scaleY = 100 / selection.height; + $('#user-avatar-preview > img').css({ + width: Math.round(scaleX * origWidth) + 'px', + height: Math.round(scaleY * origHeight) + 'px', + marginLeft: '-' + Math.round(scaleX * selection.x1) + 'px', + marginTop: '-' + Math.round(scaleY * selection.y1) + 'px' + }); +} + +/** + * Handler for updating the form inputs after select ends + */ +elgg.avatarCropper.selectChange = function(img, selection) { + $('input[name=x1]').val(selection.x1); + $('input[name=x2]').val(selection.x2); + $('input[name=y1]').val(selection.y1); + $('input[name=y2]').val(selection.y2); +} + +elgg.register_hook_handler('init', 'system', elgg.avatarCropper.init);
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