08-27-周三_17-09-29

node_modules/CSSselect/browser_functions.js

@@ -0,0 +1,67 @@
+function isTag(elem){
+	return elem.nodeType === 1;
+}
+function getChildren(elem){
+	return Array.prototype.slice.call(elem.childNodes, 0);
+}
+function getParent(elem){
+	return elem.parentElement;
+}
+
+module.exports = {
+	isTag: isTag,
+	getSiblings: function(elem){
+		var parent = getParent(elem);
+		return parent && getChildren(parent);
+	},
+	getChildren: getChildren,
+	getParent: getParent,
+	getAttributeValue: function(elem, name){
+		return elem.attributes[name].value;
+	},
+	hasAttrib: function(elem, name){
+		return name in elem.attributes;
+	},
+	getName: function(elem){
+		return elem.tagName.toLowerCase();
+	},
+	findOne: function findOne(test, arr){
+		var elem = null;
+
+		for(var i = 0, l = arr.length; i < l && !elem; i++){
+			if(test(arr[i])){
+				elem = arr[i];
+			} else {
+				var childs = getChildren(arr[i]);
+				if(childs && childs.length > 0){
+					elem = findOne(test, childs);
+				}
+			}
+		}
+
+		return elem;
+	},
+	findAll: function findAll(test, elems){
+		var result = [];
+		for(var i = 0, j = elems.length; i < j; i++){
+			if(!isTag(elems[i])) continue;
+			if(test(elems[i])) result.push(elems[i]);
+			var childs = getChildren(elems[i]);
+			if(childs) result = result.concat(findAll(test, childs));
+		}
+		return result;
+	},
+	//https://github.com/ded/qwery/blob/master/pseudos/qwery-pseudos.js#L47-54
+	getText: function getText(elem) {
+		var str = "",
+		    childs = getChildren(elem);
+
+		if(!childs) return str;
+
+		for(var i = 0; i < childs.length; i++){
+			if(isTag(childs[i])) str += elem.textContent || elem.innerText || getText(childs[i]);
+		}
+
+		return str;
+	}
+};