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author | Sem <sembrestels@riseup.net> | 2011-11-18 07:32:27 +0100 |
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committer | Sem <sembrestels@riseup.net> | 2011-11-18 07:32:27 +0100 |
commit | e53d410129701ea1c9d19529afa493f11b5f5b70 (patch) | |
tree | d9963b24bf8932654b4a47e36602c75975e50dba /js/lib/ui.avatar_cropper.js | |
parent | 377da25d2965c64941f83baae119fc970ec60982 (diff) | |
parent | 08a962c98e2923724f8013d6eaae89101243752a (diff) | |
download | elgg-e53d410129701ea1c9d19529afa493f11b5f5b70.tar.gz elgg-e53d410129701ea1c9d19529afa493f11b5f5b70.tar.bz2 |
Merge github.com:Elgg/Elgg
Conflicts:
engine/lib/input.php
Diffstat (limited to 'js/lib/ui.avatar_cropper.js')
-rw-r--r-- | js/lib/ui.avatar_cropper.js | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/js/lib/ui.avatar_cropper.js b/js/lib/ui.avatar_cropper.js new file mode 100644 index 000000000..fc32a0832 --- /dev/null +++ b/js/lib/ui.avatar_cropper.js @@ -0,0 +1,76 @@ +/** + * Avatar cropping + */ + +elgg.provide('elgg.avatarCropper'); + +/** + * Register the avatar cropper. + * + * If the hidden inputs have the coordinates from a previous cropping, begin + * the selection and preview with that displayed. + */ +elgg.avatarCropper.init = function() { + var params = { + selectionOpacity: 0, + aspectRatio: '1:1', + onSelectEnd: elgg.avatarCropper.selectChange, + onSelectChange: elgg.avatarCropper.preview + }; + + if ($('input[name=x2]').val()) { + params.x1 = $('input[name=x1]').val(); + params.x2 = $('input[name=x2]').val(); + params.y1 = $('input[name=y1]').val(); + params.y2 = $('input[name=y2]').val(); + } + + $('#user-avatar-cropper').imgAreaSelect(params); + + if ($('input[name=x2]').val()) { + var ias = $('#user-avatar-cropper').imgAreaSelect({instance: true}); + var selection = ias.getSelection(); + elgg.avatarCropper.preview($('#user-avatar-cropper'), selection); + } +}; + +/** + * Handler for changing select area. + * + * @param {Object} reference to the image + * @param {Object} imgareaselect selection object + * @return void + */ +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 + * + * @param {Object} reference to the image + * @param {Object} imgareaselect selection object + * @return void + */ +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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