我使用一个插件使用这个语句块来显示菜单，现在我在角度js中使用它。
(function(window) {
'use strict';
var support = { animations : Modernizr.cssanimations },
animEndEventNames = { 'WebkitAnimation' : 'webkitAnimationEnd', 'OAnimation' : 'oAnimationEnd', 'msAnimation' : 'MSAnimationEnd', 'animation' : 'animationend' },
animEndEventName = animEndEventNames[ Modernizr.prefixed( 'animation' ) ],
onEndAnimation = function( el, callback ) {
var onEndCallbackFn = function( ev ) {
if( support.animations ) {
if( ev.target != this ) return;
this.removeEventListener( animEndEventName, onEndCallbackFn );
}
if( callback && typeof callback === 'function' ) { callback.call(); }
};
if( support.animations ) {
el.addEventListener( animEndEventName, onEndCallbackFn );
}
else {
onEndCallbackFn();
}
};
function extend( a, b ) {
for( var key in b ) {
if( b.hasOwnProperty( key ) ) {
a[key] = b[key];
}
}
return a;
}
function MLMenu(el, options) {
this.el = el;
this.options = extend( {}, this.options );
extend( this.options, options );
// the menus (<ul>´s)
this.menus = [].slice.call(this.el.querySelectorAll('.menu__level'));
// index of current menu
this.current = 0;
this._init();
}
MLMenu.prototype.options = {
// show breadcrumbs
breadcrumbsCtrl : true,
// initial breadcrumb text
initialBreadcrumb : 'all',
// show back button
backCtrl : true,
// delay between each menu item sliding animation
itemsDelayInterval : 60,
// direction
direction : 'r2l',
// callback: item that doesn´t have a submenu gets clicked
// onItemClick([event], [inner HTML of the clicked item])
onItemClick : function(ev, itemName) { return false; }
};
MLMenu.prototype._init = function() {
// iterate the existing menus and create an array of menus, more specifically an array of objects where each one holds the info of each menu element and its menu items
this.menusArr = [];
var self = this;
this.menus.forEach(function(menuEl, pos) {
var menu = {menuEl : menuEl, menuItems : [].slice.call(menuEl.querySelectorAll('.menu__item'))};
self.menusArr.push(menu);
// set current menu class
if( pos === self.current ) {
classie.add(menuEl, 'menu__level--current');
}
});
// create back button
if( this.options.backCtrl ) {
this.backCtrl = document.createElement('button');
this.backCtrl.className = 'menu__back menu__back--hidden';
this.backCtrl.setAttribute('aria-label', 'Go back');
this.backCtrl.innerHTML = '<span class="icon icon--arrow-left"></span>';
this.el.insertBefore(this.backCtrl, this.el.firstChild);
}
// create breadcrumbs
if( self.options.breadcrumbsCtrl ) {
this.breadcrumbsCtrl = document.createElement('nav');
this.breadcrumbsCtrl.className = 'menu__breadcrumbs';
this.el.insertBefore(this.breadcrumbsCtrl, this.el.firstChild);
// add initial breadcrumb
this._addBreadcrumb(0);
}
// event binding
this._initEvents();
};
MLMenu.prototype._initEvents = function() {
var self = this;
for(var i = 0, len = this.menusArr.length; i < len; ++i) {
this.menusArr[i].menuItems.forEach(function(item, pos) {
item.querySelector('a').addEventListener('click', function(ev) {
var submenu = ev.target.getAttribute('data-submenu'),
itemName = ev.target.innerHTML,
subMenuEl = self.el.querySelector('ul[data-menu="' + submenu + '"]');
// check if there's a sub menu for this item
if( submenu && subMenuEl ) {
ev.preventDefault();
// open it
self._openSubMenu(subMenuEl, pos, itemName);
}
else {
// add class current
var currentlink = self.el.querySelector('.menu__link--current');
if( currentlink ) {
classie.remove(self.el.querySelector('.menu__link--current'), 'menu__link--current');
}
classie.add(ev.target, 'menu__link--current');
// callback
self.options.onItemClick(ev, itemName);
}
});
});
}
// back navigation
if( this.options.backCtrl ) {
this.backCtrl.addEventListener('click', function() {
self._back();
});
}
};
MLMenu.prototype._openSubMenu = function(subMenuEl, clickPosition, subMenuName) {
if( this.isAnimating ) {
return false;
}
this.isAnimating = true;
// save "parent" menu index for back navigation
this.menusArr[this.menus.indexOf(subMenuEl)].backIdx = this.current;
// save "parent" menu´s name
this.menusArr[this.menus.indexOf(subMenuEl)].name = subMenuName;
// current menu slides out
this._menuOut(clickPosition);
// next menu (submenu) slides in
this._menuIn(subMenuEl, clickPosition);
};
MLMenu.prototype._back = function() {
if( this.isAnimating ) {
return false;
}
this.isAnimating = true;
// current menu slides out
this._menuOut();
// next menu (previous menu) slides in
var backMenu = this.menusArr[this.menusArr[this.current].backIdx].menuEl;
this._menuIn(backMenu);
// remove last breadcrumb
if( this.options.breadcrumbsCtrl ) {
this.breadcrumbsCtrl.removeChild(this.breadcrumbsCtrl.lastElementChild);
}
};
MLMenu.prototype._menuOut = function(clickPosition) {
// the current menu
var self = this,
currentMenu = this.menusArr[this.current].menuEl,
isBackNavigation = typeof clickPosition == 'undefined' ? true : false;
// slide out current menu items - first, set the delays for the items
this.menusArr[this.current].menuItems.forEach(function(item, pos) {
item.style.WebkitAnimationDelay = item.style.animationDelay = isBackNavigation ? parseInt(pos * self.options.itemsDelayInterval) + 'ms' : parseInt(Math.abs(clickPosition - pos) * self.options.itemsDelayInterval) + 'ms';
});
// animation class
if( this.options.direction === 'r2l' ) {
classie.add(currentMenu, !isBackNavigation ? 'animate-outToLeft' : 'animate-outToRight');
}
else {
classie.add(currentMenu, isBackNavigation ? 'animate-outToLeft' : 'animate-outToRight');
}
};
MLMenu.prototype._menuIn = function(nextMenuEl, clickPosition) {
var self = this,
// the current menu
currentMenu = this.menusArr[this.current].menuEl,
isBackNavigation = typeof clickPosition == 'undefined' ? true : false,
// index of the nextMenuEl
nextMenuIdx = this.menus.indexOf(nextMenuEl),
nextMenuItems = this.menusArr[nextMenuIdx].menuItems,
nextMenuItemsTotal = nextMenuItems.length;
// slide in next menu items - first, set the delays for the items
nextMenuItems.forEach(function(item, pos) {
item.style.WebkitAnimationDelay = item.style.animationDelay = isBackNavigation ? parseInt(pos * self.options.itemsDelayInterval) + 'ms' : parseInt(Math.abs(clickPosition - pos) * self.options.itemsDelayInterval) + 'ms';
// we need to reset the classes once the last item animates in
// the "last item" is the farthest from the clicked item
// let's calculate the index of the farthest item
var farthestIdx = clickPosition <= nextMenuItemsTotal/2 || isBackNavigation ? nextMenuItemsTotal - 1 : 0;
if( pos === farthestIdx ) {
onEndAnimation(item, function() {
// reset classes
if( self.options.direction === 'r2l' ) {
classie.remove(currentMenu, !isBackNavigation ? 'animate-outToLeft' : 'animate-outToRight');
classie.remove(nextMenuEl, !isBackNavigation ? 'animate-inFromRight' : 'animate-inFromLeft');
}
else {
classie.remove(currentMenu, isBackNavigation ? 'animate-outToLeft' : 'animate-outToRight');
classie.remove(nextMenuEl, isBackNavigation ? 'animate-inFromRight' : 'animate-inFromLeft');
}
classie.remove(currentMenu, 'menu__level--current');
classie.add(nextMenuEl, 'menu__level--current');
//reset current
self.current = nextMenuIdx;
// control back button and breadcrumbs navigation elements
if( !isBackNavigation ) {
// show back button
if( self.options.backCtrl ) {
classie.remove(self.backCtrl, 'menu__back--hidden');
}
// add breadcrumb
self._addBreadcrumb(nextMenuIdx);
}
else if( self.current === 0 && self.options.backCtrl ) {
// hide back button
classie.add(self.backCtrl, 'menu__back--hidden');
}
// we can navigate again..
self.isAnimating = false;
});
}
});
// animation class
if( this.options.direction === 'r2l' ) {
classie.add(nextMenuEl, !isBackNavigation ? 'animate-inFromRight' : 'animate-inFromLeft');
}
else {
classie.add(nextMenuEl, isBackNavigation ? 'animate-inFromRight' : 'animate-inFromLeft');
}
};
MLMenu.prototype._addBreadcrumb = function(idx) {
if( !this.options.breadcrumbsCtrl ) {
return false;
}
var bc = document.createElement('a');
bc.innerHTML = idx ? this.menusArr[idx].name : this.options.initialBreadcrumb;
this.breadcrumbsCtrl.appendChild(bc);
var self = this;
bc.addEventListener('click', function(ev) {
ev.preventDefault();
// do nothing if this breadcrumb is the last one in the list of breadcrumbs
if( !bc.nextSibling || self.isAnimating ) {
return false;
}
self.isAnimating = true;
// current menu slides out
self._menuOut();
// next menu slides in
var nextMenu = self.menusArr[idx].menuEl;
self._menuIn(nextMenu);
// remove breadcrumbs that are ahead
var siblingNode;
while (siblingNode = bc.nextSibling) {
self.breadcrumbsCtrl.removeChild(siblingNode);
}
});
};
window.MLMenu = MLMenu;
})(window);
和自定义的java脚本：
(function() {
var menuEl = document.getElementById('ml-menu');
mlmenu = new MLMenu(menuEl, {
// breadcrumbsCtrl : true, // show breadcrumbs
// initialBreadcrumb : 'all', // initial breadcrumb text
backCtrl : false, // show back button
// itemsDelayInterval : 60, // delay between each menu item sliding animation
onItemClick: loadDummyData // callback: item that doesn´t have a submenu gets clicked - onItemClick([event], [inner HTML of the clicked item])
});
//mobile menu toggle
var openMenuCtrl = document.querySelector('.action--open'),
closeMenuCtrl = document.querySelector('.action--close');
openMenuCtrl.addEventListener('click', openMenu);
closeMenuCtrl.addEventListener('click', closeMenu);
function openMenu() {
classie.add(menuEl, 'menu--open');
}
function closeMenu() {
classie.remove(menuEl, 'menu--open');
}
// simulate grid content loading
var gridWrapper = document.querySelector('.content');
function loadDummyData(ev, itemName) {
ev.preventDefault();
closeMenu();
gridWrapper.innerHTML = '';
classie.add(gridWrapper, 'content--loading');
setTimeout(function() {
classie.remove(gridWrapper, 'content--loading');
gridWrapper.innerHTML = '<ul class="products">' + dummyData[itemName] + '<ul>';
}, 700);
}
})();
我希望将以下自定义脚本的一部分转换为角度js。
mlmenu = new MLMenu(menuEl, {
// breadcrumbsCtrl : true, // show breadcrumbs
// initialBreadcrumb : 'all', // initial breadcrumb text
backCtrl : false, // show back button
// itemsDelayInterval : 60, // delay between each menu item sliding animation
onItemClick: loadDummyData // callback: item that doesn´t have a submenu gets clicked - onItemClick([event], [inner HTML of the clicked item])
});
我在角度使用它，但它有错误。
$scope.menuEl = document.getElementById('ml-menu');
var menuEl = document.getElementById('ml-menu'),
mlmenu = new MLMenu(menuEl, {
// breadcrumbsCtrl : true, // show breadcrumbs
// initialBreadcrumb : 'all', // initial breadcrumb text
backCtrl: false, // show back button
// itemsDelayInterval : 60, // delay between each menu item sliding animation
onItemClick: $scope.loadDummyData // callback: item that doesn´t have a submenu gets clicked - onItemClick([event], [inner HTML of the clicked item])
});
我该怎么做？
答案 0 :(得分：0)
我认为你应该用AngularJS指令https://docs.angularjs.org/guide/directive
包装你的插件即。 create指令，使用你的插件并在标记的DOM上初始化它。
angular.module('yourModule')
.directive('mlMenu', function() {
return {
restrict: 'A',
link: function (scope, element) {
var mlmenu = new MLMenu(element,
...
}
};
});
比HTML
<div data-ml-menu></div>
如果要在插件监听器中修改范围，请不要忘记使用scope.$apply()包装器。