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deform.js
194 lines | 7.0 KiB | application/javascript | JavascriptLexer
/*
* Register a top-level callback to the deform.load() function
* this will be called when the DOM has finished loading. No need
* to include the call at the end of the page.
*/
$(document).ready(function(){
deform.load();
});
var deform_loaded = false;
var deform = {
callbacks: [],
addCallback: function (oid, callback) {
deform.callbacks.push([oid, callback]);
},
clearCallbacks: function () {
deform.callbacks = [];
},
load: function() {
$(function() {
if (!deform_loaded) {
deform.processCallbacks();
deform.focusFirstInput();
deform_loaded = true;
}});
},
processCallbacks: function () {
$(deform.callbacks).each(function(num, item) {
var oid = item[0];
var callback = item[1];
callback(oid);
}
);
deform.clearCallbacks();
},
addSequenceItem: function (protonode, before) {
// - Clone the prototype node and add it before the "before" node.
// Also ensure any callbacks are run for the widget.
// In order to avoid breaking accessibility:
//
// - Find each tag within the prototype node with an id
// that has the string ``deformField(\d+)`` within it, and modify
// its id to have a random component.
// - For each label referencing an change id, change the label's
// for attribute to the new id.
var fieldmatch = /deformField(\d+)/;
var namematch = /(.+)?-[#]{3}/;
var code = protonode.attr('prototype');
var html = decodeURIComponent(code);
var $htmlnode = $(html);
var $idnodes = $htmlnode.find('[id]');
var $namednodes = $htmlnode.find('[name]');
var genid = deform.randomString(6);
var idmap = {};
// replace ids containing ``deformField`` and associated label for=
// items which point at them
$idnodes.each(function(idx, node) {
var $node = $(node);
var oldid = $node.attr('id');
var newid = oldid.replace(fieldmatch, "deformField$1-" + genid);
$node.attr('id', newid);
idmap[oldid] = newid;
var labelselector = 'label[for=' + oldid + ']';
var $fornodes = $htmlnode.find(labelselector);
$fornodes.attr('for', newid);
});
// replace names a containing ```deformField`` like we do for ids
$namednodes.each(function(idx, node) {
var $node = $(node);
var oldname = $node.attr('name');
var newname = oldname.replace(fieldmatch, "deformField$1-" + genid);
$node.attr('name', newname);
});
$htmlnode.insertBefore(before);
$(deform.callbacks).each(function(num, item) {
var oid = item[0];
var callback = item[1];
var newid = idmap[oid];
if (newid) {
callback(newid);
}
});
deform.clearCallbacks();
var old_len = parseInt(before.attr('now_len')||'0', 10);
before.attr('now_len', old_len + 1);
// we added something to the dom, trigger a change event
var e = jQuery.Event("change");
$('#deform').trigger(e);
},
appendSequenceItem: function(node) {
var $oid_node = $(node).closest('.deform-seq');
var $proto_node = $oid_node.find('.deform-proto').first();
var $before_node = $oid_node.find('.deform-insert-before').last();
var min_len = parseInt($before_node.attr('min_len')||'0', 10);
var max_len = parseInt($before_node.attr('max_len')||'9999', 10);
var now_len = parseInt($before_node.attr('now_len')||'0', 10);
var orderable = parseInt($before_node.attr('orderable')||'0', 10);
if (now_len < max_len) {
deform.addSequenceItem($proto_node, $before_node);
deform.processSequenceButtons($oid_node, min_len, max_len,
now_len + 1, orderable);
}
return false;
},
removeSequenceItem: function(clicked) {
var $item_node = $(clicked).closest('.deform-seq-item');
var $oid_node = $item_node.closest('.deform-seq');
var $before_node = $oid_node.find('.deform-insert-before').last();
var min_len = parseInt($before_node.attr('min_len')||'0', 10);
var max_len = parseInt($before_node.attr('max_len')||'9999', 10);
var now_len = parseInt($before_node.attr('now_len')||'0', 10);
var orderable = parseInt($before_node.attr('orderable')||'0', 10);
if (now_len > min_len) {
$before_node.attr('now_len', now_len - 1);
$item_node.remove();
deform.processSequenceButtons($oid_node, min_len, max_len,
now_len-1, orderable);
}
// we removed something from the dom, trigger a change event
var e = jQuery.Event("change");
$('#deform').trigger(e);
return false;
},
processSequenceButtons: function(oid_node, min_len, max_len, now_len,
orderable) {
orderable = !!orderable; // convert to bool
var has_multiple = now_len > 1;
var $ul = oid_node.find('.deform-seq-container').not(oid_node.find('.deform-seq-container .deform-seq-container'));
var $lis = $ul.find('.deform-seq-item').not($ul.find('.deform-seq-container .deform-seq-item'));
var show_closebutton = now_len > min_len;
var show_addbutton = now_len < max_len;
$lis.find('.deform-close-button').not($lis.find('.deform-seq-container .deform-close-button')).toggle(show_closebutton);
oid_node.find('.deform-seq-add').not(oid_node.find('.deform-seq-container .deform-seq-add')).toggle(show_addbutton);
$lis.find('.deform-order-button').not($lis.find('.deform-seq-container .deform-order-button')).toggle(orderable && has_multiple);
},
focusFirstInput: function (el) {
el = el || document.body;
var input = $(el).find(':input')
.filter('[id ^= deformField]')
.filter('[type != hidden]')
.first();
if (input) {
var raw = input.get(0);
if (raw) {
if (raw.type === 'text' || raw.type === 'file' ||
raw.type == 'password' || raw.type == 'text' ||
raw.type == 'textarea') {
if (!input.hasClass("hasDatepicker")) {
input.focus();
}
}
}
}
},
randomString: function (length) {
var chr='0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz';
chr = chr.split('');
if (! length) {
length = Math.floor(Math.random() * chr.length);
}
var str = '';
for (var i = 0; i < length; i++) {
str += chr[Math.floor(Math.random() * chr.length)];
}
return str;
}
};