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Ability to specify blocks for initialisation #665

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Ability to specify blocks for initialisation #665

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38 changes: 31 additions & 7 deletions blocks-common/i-bem/__dom/i-bem__dom.js
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,17 @@ var win = $(window),
* @private
* @param {jQuery} domElem DOM element
* @param {String} uniqInitId ID of the "initialization wave"
* @param {Array} [blocksForInit] Specify subset of blocks for initialization
*/
function init(domElem, uniqInitId) {
function init(domElem, uniqInitId, blocksForInit) {

blocksForInit && (blocksForInit = blocksForInit.reduce(function(res, blockName) {
res[blockName] = blockName;
return res;
}, {}));

var domNode = domElem[0];

$.each(getParams(domNode), function(blockName, params) {
processParams(params, domNode, blockName, uniqInitId);
var block = uniqIdToBlock[params.uniqId];
Expand All @@ -74,7 +81,8 @@ function init(domElem, uniqInitId) {
$.extend(block._params, params);
}
} else {
initBlock(blockName, domElem, params);
(!blocksForInit || blocksForInit.hasOwnProperty(blockName))
&& initBlock(blockName, domElem, params);
}
});

Expand Down Expand Up @@ -1050,19 +1058,35 @@ var DOM = BEM.DOM = BEM.decl('i-bem__dom', {
* @static
* @protected
* @param {jQuery} [ctx=document] Root DOM node
* @param {Array} [blocksForInit] Specify subset of blocks for initialization
* @param {Function} [callback] Callback
* @param {Object} [callbackCtx] Callback context
* @returns {jQuery} ctx Initialization context
*/
init : function(ctx, callback, callbackCtx) {
init : function(ctx, blocksForInit, callback, callbackCtx) {

if(!ctx || $.isFunction(ctx) || Array.isArray(ctx)) {
if(Array.isArray(ctx)) {
callbackCtx = callback;
callback = blocksForInit;
blocksForInit = ctx;
} else if($.isFunction(ctx)) {
callback = ctx;
callbackCtx = blocksForInit;
blocksForInit = undefined;
}
ctx = doc;
}

if(!ctx || $.isFunction(ctx)) {
if($.isFunction(blocksForInit)) {
callbackCtx = callback;
callback = ctx;
ctx = doc;
callback = blocksForInit;
blocksForInit = undefined;
}

var uniqInitId = $.identify();
findDomElem(ctx, '.i-bem').each(function() {
init($(this), uniqInitId);
init($(this), uniqInitId, blocksForInit);
});

callback && this.afterCurrentEvent(
Expand Down