自定义上下文菜单

const loadDitaFile = (filePath, uuid) =>{
  return $.ajax({
    type: 'POST',
    url: '/bin/referencelistener',
    data: {
        operation: 'getdita',
        path: filePath,
        type: uuid ? 'UUID' : 'PATH',
        cache: false,
    },
  })
}

const fileOptions = {
    id: "file_options",
    contextMenuWidget: "repository_panel",
    view: {
            items: [
                {
                    component: "div",
                    target: {
                        key:"displayName",value: "Delete",
                        viewState: VIEW_STATE.REPLACE
                    }
                },
                {
                    component: "div",
                    target: {
                        key:"displayName",value: "Edit",
                        viewState: VIEW_STATE.REPLACE
                    }
                },
                {
                    "displayName": "Download",
                    "data": {
                      "eventid": "downloadFile"
                    },
                    "icon": "downloadFromCloud",
                    "class": "menu-separator",
                    target: {
                        key:"displayName",value: "Duplicate",
                        viewState: VIEW_STATE.REPLACE
                    }
                },
            ]

    },

    controller: {
        downloadFile(){
            const path  = this.getValue('selectedItems')[0].path
            loadDitaFile(path).then((file) => {
              function download_file(name, contents) {
                const mime_type = "text/plain";

                const blob = new Blob([contents], {type: mime_type});

                const dlink = document.createElement('a');
                dlink.download = name;
                dlink.href = window.URL.createObjectURL(blob);
                dlink.onclick = function() {
                    // revokeObjectURL needs a delay to work properly
                    const that = this;
                    setTimeout(function() {
                        window.URL.revokeObjectURL(that.href);
                    }, 1500);
                };

                dlink.click();
                dlink.remove();
            }
            download_file(path,file.xml)
            });
          }
    }
}