AngularJS imitates Apple sliding screen deletion control_AngularJS

AngularJs is used to develop single-page applications (SPA). AJAX calls are used to cooperate with partial refresh of the page, which can reduce page jumps and obtain a better user experience. Angular's ngView and its corresponding powerful routing mechanism are the core modules for implementing SPA applications. The page switching mentioned in this article refers to this routing mechanism, which displays different views according to different URLs.

In front-end development, in order to perform quick operations on list items, sometimes it is simple to add a button. However, sometimes you find that the buttons affect the aesthetics and even the layout of the list rows. After a little search on the Internet to no avail, I wrote this imitation Apple sliding screen delete control.

Dependencies: angularJS, jQuery

Test browsers: Chrome, IE11, mobile browsers

Original list item code:

<div class="row-class" ng-repeat="item in list">
这是整行显示的内容
</div>

Development goals:

<div class="row-class" ng-repeat="item in list" slide-delete text="删除" ondelete="ondelete(item)">
这是整行显示的内容
</div>

First, write an angular command:

myapp.directive('slideDelete', function() {
return {
restrict: 'AE',
scope: {
text: "@",
ondelete: "&"
},
link: function (scope, element, attrs) {
var w = $(element).outerWidth ();//应显示的宽度
var h = $(element).outerHeight();//应显示的高度
//按钮宽度
var btn_w = 60;
//设计按钮：
scope.btn = $('<div style="position:absolute;z-index:5998;right:0;top:0;width:'+btn_w+'px;height:'+h+'px;color:#fff;background-color:#900;text-align:center;padding-top:10px">'+(scope.text||'删除')+'</div>');
//改造行,用一个绝对定位div将内容包裹起来
$(element).contents().wrapAll('<div new_box style="position:absolute;z-index:5999;left:0;top:0;width:'+w+'px;height:'+h+'px;background-color:#fff;"></div>');
//添加按钮：
$(element).css({overflow:"hidden", position:"relative", "z-index":5999}).append(scope.btn)
//滑屏功能
.slideable({
getLeft: function(self){return self.children(":first-child").position().left;},
setLeft: function(self, x){ self.children(":first-child").css({left: x<-btn_w && -btn_w || x<0 && x || 0});},
onslide: function(self, x){
scope.open = x < -btn_w / 2;
self.css("z-index", scope.open && 6001 || 5999);
//背景，点击收起
var bk = $.fixedBackground(6000, scope.open);
scope.open && bk.data("self", self).click(function(){
var self = bk.data("self");
$.fixedBackground(6000, false);
self && self.css("z-index", 5999).children(":first-child").animate({left: 0},100);
});
self.children(":first-child").animate({left: scope.open &#63; -btn_w : 0},100);
}
})
//按钮事件
scope.btn.click(function(){
scope.ondelete && scope.ondelete();
$.fixedBackground(6000, 1).click();//关闭背景
});
}
};
});

Write another sliding event class, of course it must be compatible with the mouse

(function($){
$.fn.slideable = function(options){
var self = this;
self.options = options;
self.left = 0;
self.down = 0;
self.pressed = false;
self.bindobj = options.bindobj || self;
self.bindobj.bind("mousedown",function(event){ onmousedown(self, event); })
self.bindobj.bind("mousemove",function(event){ onmousemove(self, event); })
self.bindobj.bind("mouseup" ,function(event){ onmouseup (self, event); })
self.bindobj[0].addEventListener('touchstart', function(event) { onmousedown(self, {screenX: event.changedTouches[0].pageX}); })
self.bindobj[0].addEventListener('touchmove' , function(event) { onmousemove(self, {screenX: event.changedTouches[0].pageX}); })
self.bindobj[0].addEventListener('touchend' , function(event) { onmouseup (self, {screenX: event.changedTouches[0].pageX}); })
return this;
}
function onmousedown(self, event){
self.down = event.screenX;
self.options.onmousedown && self.options.onmousedown(self);
self.left = self.options.getLeft && self.options.getLeft(self) || 0;
self.pressed = true;
}
function onmousemove(self, event){
self.pressed && self.options.setLeft && self.options.setLeft(self, self.left + event.screenX - self.down);
}
function onmouseup(self, event){
self.pressed = false;
self.left += event.screenX - self.down;
self.options.onslide && self.options.onslide(self, self.left);
}
//背景功能
$.fixedBackground = function(z_index, b_show){
var bk = $('#fixed-background-'+z_index+'');
if(!b_show)return bk && bk.remove();
if(!(bk && bk.length>0)){
bk = $('<div id="fixed-background-'+z_index+'" style="position:fixed;z-index:'+z_index+';left:0;top:0;right:0;bottom:0;background-color:rgba(0,0,0,0)">');
$("body").append(bk);
}
return bk;
}
})(jQuery);

Regarding the AngularJS imitation Apple sliding screen deletion control code introduced above, it has been tested by the editor and can be used safely.