根据主题,我试图向 d3 树上的每个节点添加一个小的 iFrame。我的目标是,当用户单击树中的某个节点文本时,附加到该节点的 iframe 将加载与该节点关联的页面。迄今为止,我设法在屏幕上获得了一个 iframe(使用下面的代码(index.aspx)),但不是在每个节点上,我还获得了可点击节点文本部分以及返回 iframe 源的 URL。希望我已经足够清楚地解释了我的问题。
谢谢。
function update(source) {
// Compute the new tree layout.
var nodes = tree.nodes(root).reverse(),
links = tree.links(nodes);
// Normalize for fixed-depth.
nodes.forEach(function (d) { d.y = d.depth * 180; });
// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function (d) { return d.id || (d.id = ++i); });
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function (d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
;
nodeEnter.append("circle")
.attr("r", 1e-6)
.style("fill", function (d) { return d._children ? "lightsteelblue" : "#fff"; })
.on("click", click)
;
nodeEnter.append("text")
.attr("x", function (d) { return d.children || d._children ? -10 : 10; })
.attr("dy", ".35em")
.attr("text-anchor", function (d) { return d.children || d._children ? "end" : "start"; })
.text(function (d) { return d.name; })
.style("fill-opacity", 1e-6);
nodeEnter
.append("a")
.attr("xlink:href", function (d) { return d.SiteUrl; })
.append("rect")
.attr("class", "clickable")
.attr("y", -6)
.attr("x", function (d) { return d.children || d._children ? -60 : 10; })
.attr("width", 50) //2*4.5)
.attr("height", 12)
.style("fill", "lightsteelblue")
.style("fill-opacity", 1e-6) // set to .3 to make visible
//On mouse hover, page description
.append("title").text(function (d) { return d.Description; })
;
//iFrame per node
nodeEnter.append("iframe")
.attr("src", function(d) {
return d.SiteUrl; //src for each frame
})
.attr("width", 50)
.attr("height", 50);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function (d) { return "translate(" + d.y + "," + d.x + ")"; });
nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function (d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeUpdate.select("text")
.style("fill-opacity", 1);
// Transition exiting nodes to the parent's new position.
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function (d) { return "translate(" + source.y + "," + source.x + ")"; })
.remove();
nodeExit.select("circle")
.attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
var link = svg.selectAll("path.link")
.data(links, function (d) { return d.target.id; });
// Enter any new links at the parent's previous position.
link.enter().insert("path", "g")
.attr("class", "link")
.attr("d", function (d) {
var o = { x: source.x0, y: source.y0 };
return diagonal({ source: o, target: o });
});
// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);
// Transition exiting nodes to the parent's new position.
link.exit().transition()
.duration(duration)
.attr("d", function (d) {
var o = { x: source.x, y: source.y };
return diagonal({ source: o, target: o });
})
.remove();
// Stash the old positions for transition.
nodes.forEach(function (d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}