我用 jQuery 创建了一个动画,附在这个问题上。问题是动画在以下浏览器中看起来与预期不同(见下图):
- 火狐 49.0
- Safari 10.0
我还尝试了其他一些浏览器,动画看起来符合预期(见下图):
- Chrome 版本 53.0.2785.143
- 歌剧 40.0.0.230817323
jQuery 似乎为元素提供了略微不同的位置(M1、M2、..)。如果您查看代码段中的 js
代码,我会在那里计算从起点到例如M1盒子。此信息存储在 pathsFromStartToMachines
数组中。例如,如果我将计算出的航路点记录到 M1 框中,我将根据浏览器获得略有不同的结果。
- 火狐
-
[0] 左:140px 上:143px
-[1] 左:225px 上:143px
- Chrome
-
[0] 左:140px 上:143px
-[1] 左:228px 上:143px
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.machineWidth = Number($('.machine').css('width').replace(/px/, ""));
$scope.machineHeight = Number($('.machine').css('height').replace(/px/, ""));
//regex transform string like '343px solid rgb(47,79,79)' into '343'
$scope.machineBorder = Number($('.machine').css('border').replace(/px\s\w+\s\w+\S\d+\S\s*\d+\S\s*\d+\S/, ""));
$scope.machineTotalHeight = Number($scope.machineHeight + 2 * $scope.machineBorder);
$scope.machineTotalWidth = Number($scope.machineWidth + 2 * $scope.machineBorder);
$scope.middleLineWidth = Number($('#middleLine').css("width").replace(/px/, ""));
$scope.middleLineTop = Number($('#middleLine').css("top").replace(/px/, ""));
$scope.middleLineLeft = Number($('#middleLine').css("left").replace(/px/, ""));
$scope.thicknessHorizontalLine = Number($('.horizontal').css('border-bottom').replace(/px\s\w+\s\w+\S\d+\S\s*\d+\S\s*\d+\S/, ""));
$scope.palletHeight = 10;
$scope.palletWidth = 30;
$scope.startPositionMiddleLine = {
top: $scope.middleLineTop - $scope.palletHeight,
left: $scope.middleLineLeft
};
$scope.machines = [];
$('.machine').each(function(index) {
var id = $(this).attr("id");
var top = Number($(this).css("top").replace(/px/, ""));
var left = Number($(this).css("left").replace(/px/, ""));
$scope.machines.push({
id: id,
top: top,
left: left
});
});
//calculate paths from start to each machine
var pathsFromStartToMachines = [];
for (var i = 0; i < $scope.machines.length; i++) {
var id = $scope.machines[i].id;
var top = undefined;
if ($("#" + id).hasClass('first-machine-line')) {
top = $scope.machines[i].top + $scope.machineTotalHeight;
} else {
top = $scope.machines[i].top - $scope.palletHeight;
}
var left = $scope.machines[i].left + $scope.machineTotalWidth / 2;
var waypoints = [];
waypoints.push($scope.startPositionMiddleLine); //starting point middleLine
waypoints.push({
top: $scope.middleLineTop - $scope.palletHeight,
left: left - $scope.palletWidth / 2
}); //waypoint on middleLine
waypoints.push({
top: top,
left: left - $scope.palletWidth / 2
});
var path = {
id: id,
waypoints: waypoints
};
pathsFromStartToMachines.push(path)
}
$scope.pallets = [];
$scope.createNewPallet = function(type, position) {
//generate random unique id
var id = "pallet" + generateId();
//check if id is not already in use
while ($scope.pallets.indexOf(id) !== -1) {
id = "pallet" + generateId();
}
//add pallet to DOM
$('#mainContainer').append('<div class="pallet" id="' + id + '" style="display:none; top:' + position.top + 'px; left:' + position.left + 'px;"></div>');
$scope.pallets.push(id);
//pallet fade in
$('#' + id).fadeIn("50000");
return id;
};
$scope.movePallet = function(palletId, destinationId) {
//query path to machine. Notice that $.grep returns an array
var path = $.grep(pathsFromStartToMachines, function(obj) {
return obj.id === destinationId;
});
for (var i = 0; i < path[0].waypoints.length; i++) {
var waypoint = path[0].waypoints[i];
$('#' + palletId).animate({
left: waypoint.left + 'px',
top: waypoint.top + 'px'
}, "slow"); //instead of slow you can use e.g. {duration: 2000}
}
$('#' + palletId).fadeOut("slow", function() {
$('#' + palletId).remove();
});
};
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m1");
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m5");
}, 1500);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m2");
}, 3000);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m4");
}, 4500);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m3");
}, 6000);
function generateId() {
//generates a random number between 1 and 10000
return Math.floor((Math.random() * 10000) + 1);
}
});
#mainContainer > div {
position: absolute;
}
#mainContainer {
position: relative;
width: 700px;
height: 400px;
border: 3px solid slategrey;
background-color: whitesmoke;
}
div.machine {
width: 60px;
height: 60px;
border: 3px solid darkslategray;
border-radius: 12px;
text-align: center;
vertical-align: middle;
line-height: 60px;
background-color: lightslategray;
color: whitesmoke;
font-family: Verdana, Helvetica, sans-serif;
}
.first-machine-line {
top: 10%;
}
.second-machine-line {
top: 50%;
}
#m1 {
left: 30%;
}
#m2 {
left: 50%;
}
#m3 {
left: 70%;
}
#m4 {
left: 30%;
}
#m5 {
left: 50%;
}
.line {
border: 0;
background: lightgrey;
}
.horizontal {
border-bottom: 2px dashed dimgrey;
}
.vertical {
border-left: 2px dashed dimgrey;
}
#middleLine {
width: 70%;
top: calc((50% - 10% - 66px) / 2 + 10% + 66px);
left: 20%;
}
.vertical-line {
height: calc((50% - 10% - 66px) / 2);
}
.vertical-line-first-machine-line {
top: calc(10% + 66px);
}
.vertical-line-second-machine-line {
top: calc(10% + 66px + (50% - 10% - 66px) / 2);
}
#M1toMiddle {
left: calc(30% + 66px / 2);
}
#M2toMiddle {
left: calc(50% + 66px / 2);
}
#M3toMiddle {
left: calc(70% + 66px / 2);
}
#M4toMiddle {
left: calc(30% + 66px / 2);
}
#M5toMiddle {
left: calc(50% + 66px / 2);
}
.pallet {
width: 30px;
height: 10px;
background-color: dimgrey;
border-radius: 2px;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body ng-app="myApp" ng-controller="myCtrl">
<div id="mainContainer" class="relative">
<div class="machine first-machine-line" id="m1">M1</div>
<div class="machine first-machine-line" id="m2">M2</div>
<div class="machine first-machine-line" id="m3">M3</div>
<div class="machine second-machine-line" id="m4">M4</div>
<div class="machine second-machine-line" id="m5">M5</div>
<div class="line horizontal" id="middleLine"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M1toMiddle"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M2toMiddle"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M3toMiddle"></div>
<div class="line vertical vertical-line vertical-line-second-machine-line" id="M4toMiddle"></div>
<div class="line vertical vertical-line vertical-line-second-machine-line" id="M5toMiddle"></div>
</div>
</body>
最佳答案
“机器”div 的边框宽度在 Firefox 中未正确报告。你应该替换:
$scope.machineBorder = Number($('.machine').css('border').replace(/px\s\w+\s\w+\S\d+\S\s*\d+\S\s*\d+\S/, ""));
与
$scope.machineBorder = Number($('.machine').css('borderTopWidth').replace(/px/, ""));
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.machineWidth = Number($('.machine').css('width').replace(/px/, ""));
$scope.machineHeight = Number($('.machine').css('height').replace(/px/, ""));
//regex transform string like '343px solid rgb(47,79,79)' into '343'
$scope.machineBorder = Number($('.machine').css('borderTopWidth').replace(/px/, ""));
$scope.machineTotalHeight = Number($scope.machineHeight + 2 * $scope.machineBorder);
$scope.machineTotalWidth = Number($scope.machineWidth + 2 * $scope.machineBorder);
console.log($scope.machineBorder);
$scope.middleLineWidth = Number($('#middleLine').css("width").replace(/px/, ""));
$scope.middleLineTop = Number($('#middleLine').css("top").replace(/px/, ""));
$scope.middleLineLeft = Number($('#middleLine').css("left").replace(/px/, ""));
$scope.thicknessHorizontalLine = Number($('.horizontal').css('border-bottom').replace(/px\s\w+\s\w+\S\d+\S\s*\d+\S\s*\d+\S/, ""));
$scope.palletHeight = 10;
$scope.palletWidth = 30;
$scope.startPositionMiddleLine = {
top: $scope.middleLineTop - $scope.palletHeight,
left: $scope.middleLineLeft
};
$scope.machines = [];
$('.machine').each(function(index) {
var id = $(this).attr("id");
var top = Number($(this).css("top").replace(/px/, ""));
var left = Number($(this).css("left").replace(/px/, ""));
$scope.machines.push({
id: id,
top: top,
left: left
});
});
//calculate paths from start to each machine
var pathsFromStartToMachines = [];
for (var i = 0; i < $scope.machines.length; i++) {
var id = $scope.machines[i].id;
var top = undefined;
if ($("#" + id).hasClass('first-machine-line')) {
top = $scope.machines[i].top + $scope.machineTotalHeight;
} else {
top = $scope.machines[i].top - $scope.palletHeight;
}
var left = $scope.machines[i].left + $scope.machineTotalWidth / 2;
var waypoints = [];
waypoints.push($scope.startPositionMiddleLine); //starting point middleLine
waypoints.push({
top: $scope.middleLineTop - $scope.palletHeight,
left: left - $scope.palletWidth / 2
}); //waypoint on middleLine
waypoints.push({
top: top,
left: left - $scope.palletWidth / 2
});
var path = {
id: id,
waypoints: waypoints
};
pathsFromStartToMachines.push(path)
}
$scope.pallets = [];
$scope.createNewPallet = function(type, position) {
//generate random unique id
var id = "pallet" + generateId();
//check if id is not already in use
while ($scope.pallets.indexOf(id) !== -1) {
id = "pallet" + generateId();
}
//add pallet to DOM
$('#mainContainer').append('<div class="pallet" id="' + id + '" style="display:none; top:' + position.top + 'px; left:' + position.left + 'px;"></div>');
$scope.pallets.push(id);
//pallet fade in
$('#' + id).fadeIn("50000");
return id;
};
$scope.movePallet = function(palletId, destinationId) {
//query path to machine. Notice that $.grep returns an array
var path = $.grep(pathsFromStartToMachines, function(obj) {
return obj.id === destinationId;
});
for (var i = 0; i < path[0].waypoints.length; i++) {
var waypoint = path[0].waypoints[i];
$('#' + palletId).animate({
left: waypoint.left + 'px',
top: waypoint.top + 'px'
}, "slow"); //instead of slow you can use e.g. {duration: 2000}
}
$('#' + palletId).fadeOut("slow", function() {
$('#' + palletId).remove();
});
};
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m1");
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m5");
}, 1500);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m2");
}, 3000);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m4");
}, 4500);
setTimeout(function() {
$scope.movePallet($scope.createNewPallet(1, $scope.startPositionMiddleLine), "m3");
}, 6000);
function generateId() {
//generates a random number between 1 and 10000
return Math.floor((Math.random() * 10000) + 1);
}
});
#mainContainer > div {
position: absolute;
}
#mainContainer {
position: relative;
width: 700px;
height: 400px;
border: 3px solid slategrey;
background-color: whitesmoke;
}
div.machine {
width: 60px;
height: 60px;
border: 3px solid darkslategray;
border-radius: 12px;
text-align: center;
vertical-align: middle;
line-height: 60px;
background-color: lightslategray;
color: whitesmoke;
font-family: Verdana, Helvetica, sans-serif;
}
.first-machine-line {
top: 10%;
}
.second-machine-line {
top: 50%;
}
#m1 {
left: 30%;
}
#m2 {
left: 50%;
}
#m3 {
left: 70%;
}
#m4 {
left: 30%;
}
#m5 {
left: 50%;
}
.line {
border: 0;
background: lightgrey;
}
.horizontal {
border-bottom: 2px dashed dimgrey;
}
.vertical {
border-left: 2px dashed dimgrey;
}
#middleLine {
width: 70%;
top: calc((50% - 10% - 66px) / 2 + 10% + 66px);
left: 20%;
}
.vertical-line {
height: calc((50% - 10% - 66px) / 2);
}
.vertical-line-first-machine-line {
top: calc(10% + 66px);
}
.vertical-line-second-machine-line {
top: calc(10% + 66px + (50% - 10% - 66px) / 2);
}
#M1toMiddle {
left: calc(30% + 66px / 2);
}
#M2toMiddle {
left: calc(50% + 66px / 2);
}
#M3toMiddle {
left: calc(70% + 66px / 2);
}
#M4toMiddle {
left: calc(30% + 66px / 2);
}
#M5toMiddle {
left: calc(50% + 66px / 2);
}
.pallet {
width: 30px;
height: 10px;
background-color: dimgrey;
border-radius: 2px;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body ng-app="myApp" ng-controller="myCtrl">
<div id="mainContainer" class="relative">
<div class="machine first-machine-line" id="m1">M1</div>
<div class="machine first-machine-line" id="m2">M2</div>
<div class="machine first-machine-line" id="m3">M3</div>
<div class="machine second-machine-line" id="m4">M4</div>
<div class="machine second-machine-line" id="m5">M5</div>
<div class="line horizontal" id="middleLine"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M1toMiddle"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M2toMiddle"></div>
<div class="line vertical vertical-line vertical-line-first-machine-line" id="M3toMiddle"></div>
<div class="line vertical vertical-line vertical-line-second-machine-line" id="M4toMiddle"></div>
<div class="line vertical vertical-line vertical-line-second-machine-line" id="M5toMiddle"></div>
</div>
</body>
在 Safari 中测试时,线条定位不正确,托盘的起始位置位于窗口顶部。通过用 CSS 中的简单值替换
calc(...)
表达式,我获得了预期的布局和行为。结果可见this jsfiddle .例如这个样式类:
#middleLine {
width: 70%;
top: calc((50% - 10% - 66px) / 2 + 10% + 66px);
left: 20%;
}
替换为:
#middleLine {
width: 70%;
top: 38.5%;
left: 20%;
}
如果需要更精细的计算,另一种方法是计算代码中的值并使用 css
jQuery 方法设置位置样式属性。
关于jQuery 根据浏览器返回不同的顶部和左侧值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40081526/