Cytoscape.js复合子节点addClass不显示样式

问题描述 投票:2回答:1

Cytoscape 3.5.0-升级到Cytoscape 3.11.0-不变

复合子节点样式未显示在addClass上,但父节点显示了

我在onClick事件期间已成功将其他类添加到选定的Node元素:

 cy.on('click', 'node', (evt) => (...  

但是,当我单击父样式时,我只会看到样式更改,而看不到子样式。当我单击子节点时,我发现它已在console.log输出中添加了类,与对父节点的添​​加过程相同,但是在子图中未看到预期的样式更改就像我为父母所做的一样。

我已经进行了大量的实验,没有成功地阅读文档和示例,但是令人困惑的是,父样式会随addClass发生变化,而子样式不会发生变化。

我很茫然。谢谢您对此提供的任何帮助。

控制台日志:

(2) ["controller", "selectedNode"]
0: "controller"
1: "selectedNode"
length: 2
__proto__: Array(0)

CY Onclick事件:

cy.on('click', 'node',  (evt) => {
            cy.elements().removeClass('selectedNode');
            let selectedNode = cy.$('#'+evt.target.id());
            selectedNode.addClass('selectedNode');
            console.log(selectedNode.classes());
        });

选择器类:

{
        selector: '.controller',
        style: {
            'background-color': 'lightgrey',
            'color': '#737373',
            'font-weight': 'bold',
            'background-opacity': 0.115,
            'content': 'data(label)',
            'text-valign': 'bottom',
            'text-wrap': 'wrap',
            'shape': 'roundrectangle',
            'border-width': .001,
            'border-color': 'lightgrey',
            'font-size': 24,
            "height": 46,
            "width": 85,
            'background-image': '/networkdiagram/controller.svg',
            "background-fit": "cover cover",
        }
},
{
        selector: '.selectedNode',
        style: {
                // 'color': 'black',
                'border-width': 8,
                'border-color': '#5da963',
        }
}
javascript css cytoscape.js
1个回答
0
投票

这里似乎没有太多错误,您可以使用evt.target(直接在没有任何查询的情况下)更轻松地访问目标节点,并且我倾向于使用unbind(只是为了确保我不调用事件处理程序多次):

var cy = (window.cy = cytoscape({
  container: document.getElementById("cy"),
  style: [{
      selector: "node",
      css: {
        content: "data(id)",
        "text-valign": "center",
        "text-halign": "center",
        height: "60px",
        width: "60px"
      }
    },
    {
      selector: "edge",
      css: {
        label: "\u2B24",
        "curve-style": "bezier",
        "target-arrow-shape": "data(arrow)"
      }
    },
    {
      selector: ".selectedNode",
      style: {
        "border-width": 8,
        "border-color": "#5da963"
      }
    }
  ],

  elements: {
    nodes: [{
        data: {
          id: "n0",
          parent: "n4"
        }
      },
      {
        data: {
          id: "n1",
          parent: "n5"
        }
      },
      {
        data: {
          id: "n2",
          parent: "n5"
        }
      },
      {
        data: {
          id: "n3",
          parent: "n5"
        }
      },
      {
        data: {
          id: "n4",
          parent: "n5"
        }
      },
      {
        data: {
          id: "n5"
        }
      }
    ],
    edges: [{
        data: {
          source: "n0",
          target: "n1",
          arrow: "triangle"
        }
      },
      {
        data: {
          source: "n1",
          target: "n2",
          arrow: "triangle"
        }
      },
      {
        data: {
          source: "n1",
          target: "n3",
          arrow: "triangle"
        }
      }
    ]
  },

  layout: {
    name: "concentric",
    minNodeSpacing: 140
  }
}));

cy.unbind("click");
cy.bind("click", "node", evt => {
  cy.elements().removeClass("selectedNode");
  evt.target.addClass("selectedNode");
});
body {
  font: 14px helvetica neue, helvetica, arial, sans-serif;
}

#cy {
  height: 100%;
  width: 100%;
  left: 0;
  top: 0;
  float: left;
  position: absolute;
}

.cxtmenu-disabled {
  opacity: 0.333;
}
<html>

<head>
  <meta charset=utf-8 />
  <meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/cytoscape.min.js"></script>
</head>

<body>
  <div id="cy"></div>
</body>

</html>
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