mapContextMenu.vue
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<template>
<div
id="context-menu"
v-if="showContextMenu"
:style="{ left: menuX + 'px', top: menuY + 'px' }"
>
<ul>
<li v-show="showNodeMenu" @click="handleMenuItemClick('delete')">
删除节点
</li>
<li v-show="showNodeMenu" @click="handleMenuItemClick('edit')">
编辑属性
</li>
<li v-show="showNodeMenu" @click="handleMenuItemClick('control')">
管制区域
</li>
<li v-show="showCanvasMenu" @click="handleMenuItemClick('reset')">
地图复位
</li>
<!-- <li v-show="showCanvasMenu" @click="handleMenuItemClick('import')">导入</li>
<li v-show="showCanvasMenu" @click="handleMenuItemClick('export')">导出</li> -->
<li v-show="showCanvasMenu" @click="handleMenuItemClick('clear')">
清空画布
</li>
</ul>
</div>
</template>
<script>
import { formatTime, openConfirm, showMsg } from "@/utils/index.js";
export default {
name: "mapContextMenu",
props: {},
data() {
return {
//画布
graph: null,
menuX: 0,
menuY: 0,
showContextMenu: false,
showNodeMenu: false,
showCanvasMenu: false,
selectedNode: null,
isRight: false,
};
},
mounted() {},
methods: {
//显示菜单
showMenu(point, menuType, node) {
if (node != null) {
if (this.isRight) {
if (this.selectedNode) {
this.graph.unselect(this.selectedNode);
}
}
this.graph.select(node);
this.isRight = true;
} else {
let isselect = this.graph.getSelectedCells();
isselect.forEach((i) => {
this.graph.unselect(i);
});
}
this.selectedNode = node;
this.menuX = point.x;
this.menuY = point.y;
this.showContextMenu = true;
this.showCanvasMenu = false;
this.showNodeMenu = false;
if (menuType == 0) {
this.showCanvasMenu = true;
} else if (menuType == 1) {
this.showNodeMenu = true;
}
// console.log("进来了");
},
//隐藏菜单
hideMenu() {
this.isRight = false;
this.showContextMenu = false;
this.showCanvasMenu = false;
this.showNodeMenu = false;
},
//右键菜单
handleMenuItemClick(action) {
// if (this.selectedNode) {
switch (action) {
case "delete":
// if (this.selectedNode) {
// this.graph.removeNode(this.selectedNode.id);
// }
let isselect = this.graph.getSelectedCells();
isselect.forEach((i) => {
this.graph.removeNode(i.id);
});
break;
case "edit":
// console.log("编辑节点:", this.selectedNode);
// this.attributeEdit(this.selectedNode);
if (this.selectedNode) {
this.$emit("attribute", this.selectedNode);
}
break;
case "control":
this.$emit("control");
break;
case "clear":
// 获取所有节点并移除
openConfirm(this, "是否进行清屏操作？", () => {
this.graph.clearCells();
});
break;
case "reset":
this.reset();
break;
case "import":
this.clickSave();
break;
case "export":
this.save();
break;
}
// }
this.showContextMenu = false;
},
clickSave() {
document.getElementById("files").click();
},
//导入
savetemplate(e) {
const file = event.target.files[0];
const reader = new FileReader();
reader.readAsText(file, "UTF-8");
reader.onload = (evt) => {
const fileContent = JSON.parse(evt.target.result);
sessionStorage.setItem("mapData", evt.target.result);
this.graph.fromJSON(fileContent);
};
},
//导出
save() {
// // console.log(data.cells,'datadatadatadata')
// let str = new Blob([data.cells], {type: 'text/plain;charset=utf-8'});
// // 注意这里要手动写上文件的后缀名
// saveAs(str, `组件json.txt`);
sessionStorage.setItem("mapData", JSON.stringify(this.graph.toJSON()));
const blob = new Blob([JSON.stringify(this.graph.toJSON())], {
type: "text/plain",
});
const url = URL.createObjectURL(blob);
const a = document.createElement("a");
a.href = url;
a.download = "组件json.text";
document.body.appendChild(a);
a.style.display = "none";
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
},
//复位
reset() {
// 恢复初始缩放比例
this.graph.scale(1, 1);
// 恢复初始位置
this.graph.translate(0, 0);
},
},
};
</script>
<style lang="scss" scoped>
/* ... 原有样式 ... */
#context-menu {
position: absolute;
background: white;
border: 1px solid #ccc;
box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
z-index: 1000;
font-size: 14px;
color: #606266;
}
#context-menu ul {
list-style-type: none;
padding: 0;
margin: 0;
}
#context-menu li {
padding: 8px 16px;
cursor: pointer;
}
#context-menu li:hover {
background: #f0f0f0;
}
</style>