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This commit is contained in:
Murod Khaydarov 2017-12-28 21:41:47 +03:00
commit cfef2bb7e2
3 changed files with 88 additions and 80 deletions
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87
src/components/dom.js
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@ -174,6 +174,49 @@ export default class Dom {
}
/**
* Checks node if it is empty
* It must be node without childNodes
* @param {Node} node
*
* @return {Boolean} true if it is empty
*/
static checkNodeEmpty(node) {
if ( this.isElement(node) && this.isNativeInput(node) ) {
node = node.value;
if ( node.trim() ) {
return false;
}
} else {
node = node.textContent.replace('\u200B', '');
if ( node.trim() ) {
return false;
}
}
return true;
}
/**
* breadth-first search
*
* Pushes to stack all DOM leafs and checks for emptiness
* @param {Node} node
* @return {boolean}
*/
static isEmpty(node) {
let treeWalker = [],
@ -214,49 +257,7 @@ export default class Dom {
}
let isEmpty = true;
stack.forEach( (node) => {
if ( this.isElement(node) ) {
if ( this.isNativeInput(node) ) {
node = node.value;
if ( node.trim() ) {
isEmpty = false;
}
} else {
node = node.textContent.replace('\u200B', '');
if ( node.trim() ) {
isEmpty = false;
}
}
} else {
node = node.textContent.replace('\u200B', '');
if ( node.trim() ) {
isEmpty = false;
}
}
});
return isEmpty;
return stack.every( this.checkNodeEmpty );
}