我在拖动SVG时尝试更改光标但光标更改仅在释放鼠标按钮时触发。但是，在Firefox中完美运行。
我使用的是Chrome版本50.0.2661.102 m。
这是我使用的jQuery：
$('#map')
.mousedown(function(){
$(this).css( 'cursor', 'move' );
})
.mouseup(function(){
$(this).css( 'cursor', 'auto' );
});
但是我在下面添加的代码段实际上可以正常工作，但the fiddle I created doesn't，我在网站上的实际代码也没有建立。
我如何以不同的方式为Chrome执行此操作，以便始终有效？
var graph = {
"nodes":[
{"name":"1","rating":90,"id":2951},
{"name":"2","rating":80,"id":654654},
{"name":"3","rating":80,"id":6546544},
{"name":"4","rating":1,"id":68987978},
{"name":"5","rating":1,"id":9878933},
{"name":"6","rating":1,"id":6161},
{"name":"7","rating":1,"id":64654},
{"name":"8","rating":20,"id":354654},
{"name":"9","rating":50,"id":8494},
{"name":"10","rating":1,"id":6846874},
{"name":"11","rating":1,"id":5487},
{"name":"12","rating":80,"id":"parfum_kenzo"},
{"name":"13","rating":1,"id":65465465},
{"name":"14","rating":90,"id":"jungle_de_kenzo"},
{"name":"15","rating":20,"id":313514},
{"name":"16","rating":40,"id":36543614},
{"name":"17","rating":100,"id":"Yann_YA645"},
{"name":"18","rating":1,"id":97413},
{"name":"19","rating":1,"id":97414},
{"name":"20","rating":100,"id":976431231},
{"name":"21","rating":1,"id":9416},
{"name":"22","rating":1,"id":998949},
{"name":"23","rating":100,"id":984941},
{"name":"24","rating":100,"id":"99843"},
{"name":"25","rating":1,"id":94915},
{"name":"26","rating":1,"id":913134},
{"name":"27","rating":1,"id":9134371}
],
"links":[
{"source":6,"target":5,"value":6, "label":"publishedOn"},
{"source":8,"target":5,"value":6, "label":"publishedOn"},
{"source":7,"target":1,"value":4, "label":"containsKeyword"},
{"source":8,"target":10,"value":3, "label":"containsKeyword"},
{"source":7,"target":14,"value":4, "label":"publishedBy"},
{"source":8,"target":15,"value":6, "label":"publishedBy"},
{"source":9,"target":1,"value":6, "label":"depicts"},
{"source":10,"target":1,"value":6, "label":"depicts"},
{"source":16,"target":1,"value":6, "label":"manageWebsite"},
{"source":16,"target":2,"value":5, "label":"manageWebsite"},
{"source":16,"target":3,"value":6, "label":"manageWebsite"},
{"source":16,"target":4,"value":6, "label":"manageWebsite"},
{"source":19,"target":18,"value":2, "label":"postedOn"},
{"source":18,"target":1,"value":6, "label":"childOf"},
{"source":17,"target":19,"value":8, "label":"describes"},
{"source":18,"target":11,"value":6, "label":"containsKeyword"},
{"source":17,"target":13,"value":3, "label":"containsKeyword"},
{"source":20,"target":13,"value":3, "label":"containsKeyword"},
{"source":20,"target":21,"value":3, "label":"postedOn"},
{"source":22,"target":20,"value":3, "label":"postedOn"},
{"source":23,"target":21,"value":3, "label":"manageWebsite"},
{"source":23,"target":24,"value":3, "label":"manageWebsite"},
{"source":23,"target":25,"value":3, "label":"manageWebsite"},
{"source":23,"target":26,"value":3, "label":"manageWebsite"}
]
}
var margin = {top: -5, right: -5, bottom: -5, left: -5};
var width = 500 - margin.left - margin.right,
height = 400- margin.top - margin.bottom;
var color = d3.scale.category20();
var force = d3.layout.force()
.charge(-200)
.linkDistance(50)
.size([width + margin.left + margin.right, height + margin.top + margin.bottom]);
var zoom = d3.behavior.zoom()
.scaleExtent([1, 10])
.on("zoom", zoomed);
var drag = d3.behavior.drag()
.origin(function(d) { return d; })
.on("dragstart", dragstarted)
.on("drag", dragged)
.on("dragend", dragended);
var svg = d3.select("#map").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.attr("id", "svg")
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.right + ")")
.call(zoom);
var rect = svg.append("rect")
.attr("width", width)
.attr("height", height)
.style("fill", "none")
.style("pointer-events", "all");
var container = svg.append("g");
//d3.json('http://blt909.free.fr/wd/map2.json', function(error, graph) {
force
.nodes(graph.nodes)
.links(graph.links)
.start();
var link = container.append("g")
.attr("class", "links")
.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.sqrt(d.value); });
var node = container.append("g")
.attr("class", "nodes")
.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.call(drag);
node.append("circle")
.attr("r", function(d) { return d.weight * 2+ 12; })
.style("fill", function(d) { return color(1/d.rating); });
force.on("tick", function() {
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
});
var linkedByIndex = {};
graph.links.forEach(function(d) {
linkedByIndex[d.source.index + "," + d.target.index] = 1;
});
function isConnected(a, b) {
return linkedByIndex[a.index + "," + b.index] || linkedByIndex[b.index + "," + a.index];
}
node.on("mouseover", function(d){
node.classed("node-active", function(o) {
thisOpacity = isConnected(d, o) ? true : false;
this.setAttribute('fill-opacity', thisOpacity);
return thisOpacity;
});
link.classed("link-active", function(o) {
return o.source === d || o.target === d ? true : false;
});
d3.select(this).classed("node-active", true);
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", (d.weight * 2+ 12)*1.5);
})
.on("mouseout", function(d){
node.classed("node-active", false);
link.classed("link-active", false);
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", d.weight * 2+ 12);
});
function dottype(d) {
d.x = +d.x;
d.y = +d.y;
return d;
}
function zoomed() {
container.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
}
function dragstarted(d) {
d3.event.sourceEvent.stopPropagation();
d3.select(this).classed("dragging", true);
force.start();
}
function dragged(d) {
d3.select(this).attr("cx", d.x = d3.event.x).attr("cy", d.y = d3.event.y);
}
function dragended(d) {
d3.select(this).classed("dragging", false);
}
$('#map')
.mousedown(function(){
$(this).css( 'cursor', 'move' );
})
.mouseup(function(){
$(this).css( 'cursor', 'auto' );
});.node {
stroke: #fff;
stroke-width: 1.5px;
}
.node-active{
stroke: #555;
stroke-width: 1.5px;
}
.link {
stroke: #555;
stroke-opacity: .3;
}
.link-active {
stroke-opacity: 1;
}
.overlay {
fill: none;
pointer-events: all;
}
#map{
border: 2px #555 dashed;
width:500px;
height:400px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<body>
<div id="map"></div>
</body>
（从http://jsfiddle.net/JSDavi/qvco2Ljy/借来的样本SVG代码）
答案 0 :(得分：1)
如果有人反对这一点......这就是我的情景：
如果您打开了Chrome检查器，这就是导致其失败的原因，如果您关闭了您正在创建此效果的页面的检查器，它就会完美运行。
答案 1 :(得分：0)
你有：
function dragstarted(d) {
d3.event.sourceEvent.stopPropagation();
d3.select(this).classed("dragging", true);
force.start();
}
对stopPropagation的调用似乎可以防止鼠标停止事件。不幸的是，将其更改为preventDefault会改变拖放的工作方式（它会移动整个图形，而不是移动单个节点）。
如果只需要更改光标，为什么不使用CSS呢？您似乎已将节点类更改为dragging，因此您应该能够简单地使用以下CSS：
.node.dragging {
cursor: move;
}
如果您希望在拖动整个图表时也更改光标，您也可以将dragged类添加到#map：
function dragstarted(d) {
d3.event.sourceEvent.stopPropagation();
$("#map").addClass("dragging");
d3.select(this).classed("dragging", true);
force.start();
}
// ...
function dragended(d) {
$("#map").removeClass("dragging");
d3.select(this).classed("dragging", false);
}
然后为其添加CSS：
#map.dragging {
cursor: move;
}
var graph = {
"nodes":[
{"name":"1","rating":90,"id":2951},
{"name":"2","rating":80,"id":654654},
{"name":"3","rating":80,"id":6546544},
{"name":"4","rating":1,"id":68987978},
{"name":"5","rating":1,"id":9878933},
{"name":"6","rating":1,"id":6161},
{"name":"7","rating":1,"id":64654},
{"name":"8","rating":20,"id":354654},
{"name":"9","rating":50,"id":8494},
{"name":"10","rating":1,"id":6846874},
{"name":"11","rating":1,"id":5487},
{"name":"12","rating":80,"id":"parfum_kenzo"},
{"name":"13","rating":1,"id":65465465},
{"name":"14","rating":90,"id":"jungle_de_kenzo"},
{"name":"15","rating":20,"id":313514},
{"name":"16","rating":40,"id":36543614},
{"name":"17","rating":100,"id":"Yann_YA645"},
{"name":"18","rating":1,"id":97413},
{"name":"19","rating":1,"id":97414},
{"name":"20","rating":100,"id":976431231},
{"name":"21","rating":1,"id":9416},
{"name":"22","rating":1,"id":998949},
{"name":"23","rating":100,"id":984941},
{"name":"24","rating":100,"id":"99843"},
{"name":"25","rating":1,"id":94915},
{"name":"26","rating":1,"id":913134},
{"name":"27","rating":1,"id":9134371}
],
"links":[
{"source":6,"target":5,"value":6, "label":"publishedOn"},
{"source":8,"target":5,"value":6, "label":"publishedOn"},
{"source":7,"target":1,"value":4, "label":"containsKeyword"},
{"source":8,"target":10,"value":3, "label":"containsKeyword"},
{"source":7,"target":14,"value":4, "label":"publishedBy"},
{"source":8,"target":15,"value":6, "label":"publishedBy"},
{"source":9,"target":1,"value":6, "label":"depicts"},
{"source":10,"target":1,"value":6, "label":"depicts"},
{"source":16,"target":1,"value":6, "label":"manageWebsite"},
{"source":16,"target":2,"value":5, "label":"manageWebsite"},
{"source":16,"target":3,"value":6, "label":"manageWebsite"},
{"source":16,"target":4,"value":6, "label":"manageWebsite"},
{"source":19,"target":18,"value":2, "label":"postedOn"},
{"source":18,"target":1,"value":6, "label":"childOf"},
{"source":17,"target":19,"value":8, "label":"describes"},
{"source":18,"target":11,"value":6, "label":"containsKeyword"},
{"source":17,"target":13,"value":3, "label":"containsKeyword"},
{"source":20,"target":13,"value":3, "label":"containsKeyword"},
{"source":20,"target":21,"value":3, "label":"postedOn"},
{"source":22,"target":20,"value":3, "label":"postedOn"},
{"source":23,"target":21,"value":3, "label":"manageWebsite"},
{"source":23,"target":24,"value":3, "label":"manageWebsite"},
{"source":23,"target":25,"value":3, "label":"manageWebsite"},
{"source":23,"target":26,"value":3, "label":"manageWebsite"}
]
}
var margin = {top: -5, right: -5, bottom: -5, left: -5};
var width = 500 - margin.left - margin.right,
height = 400- margin.top - margin.bottom;
var color = d3.scale.category20();
var force = d3.layout.force()
.charge(-200)
.linkDistance(50)
.size([width + margin.left + margin.right, height + margin.top + margin.bottom]);
var zoom = d3.behavior.zoom()
.scaleExtent([1, 10])
.on("zoom", zoomed);
var drag = d3.behavior.drag()
.origin(function(d) { return d; })
.on("dragstart", dragstarted)
.on("drag", dragged)
.on("dragend", dragended);
var svg = d3.select("#map").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.attr("id", "svg")
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.right + ")")
.call(zoom);
var rect = svg.append("rect")
.attr("width", width)
.attr("height", height)
.style("fill", "none")
.style("pointer-events", "all");
var container = svg.append("g");
//d3.json('http://blt909.free.fr/wd/map2.json', function(error, graph) {
force
.nodes(graph.nodes)
.links(graph.links)
.start();
var link = container.append("g")
.attr("class", "links")
.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.sqrt(d.value); });
var node = container.append("g")
.attr("class", "nodes")
.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.call(drag);
node.append("circle")
.attr("r", function(d) { return d.weight * 2+ 12; })
.style("fill", function(d) { return color(1/d.rating); });
force.on("tick", function() {
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
});
var linkedByIndex = {};
graph.links.forEach(function(d) {
linkedByIndex[d.source.index + "," + d.target.index] = 1;
});
function isConnected(a, b) {
return linkedByIndex[a.index + "," + b.index] || linkedByIndex[b.index + "," + a.index];
}
node.on("mouseover", function(d){
node.classed("node-active", function(o) {
thisOpacity = isConnected(d, o) ? true : false;
this.setAttribute('fill-opacity', thisOpacity);
return thisOpacity;
});
link.classed("link-active", function(o) {
return o.source === d || o.target === d ? true : false;
});
d3.select(this).classed("node-active", true);
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", (d.weight * 2+ 12)*1.5);
})
.on("mouseout", function(d){
node.classed("node-active", false);
link.classed("link-active", false);
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", d.weight * 2+ 12);
});
function dottype(d) {
d.x = +d.x;
d.y = +d.y;
return d;
}
function zoomed() {
container.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
}
function dragstarted(d) {
d3.event.sourceEvent.stopPropagation();
$("#map").addClass("dragging");
d3.select(this).classed("dragging", true);
force.start();
}
function dragged(d) {
d3.select(this).attr("cx", d.x = d3.event.x).attr("cy", d.y = d3.event.y);
}
function dragended(d) {
$("#map").removeClass("dragging");
d3.select(this).classed("dragging", false);
}.node {
stroke: #fff;
stroke-width: 1.5px;
}
.node.dragging,
#map.dragging {
cursor: move;
}
.node-active{
stroke: #555;
stroke-width: 1.5px;
}
.link {
stroke: #555;
stroke-opacity: .3;
}
.link-active {
stroke-opacity: 1;
}
.overlay {
fill: none;
pointer-events: all;
}
#map{
border: 2px #555 dashed;
width:500px;
height:400px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<body>
<div id="map"></div>
</body>