js文档图片选择器插件

使用方法

    var checkedData = [];
    // 生成项
    function createItem(data,i) {
      let div = document.createElement("div");
      let icon = document.createElement("i");
      let icon_select = document.createElement("i");
      let p = document.createElement("p");

      // 附上内容
      div.className = "item";
      icon.className = "icon";
      icon_select.className = "icon-file";
      icon_select.style.backgroundImage = "url('" + data.src + "')";
      p.innerHTML = data.name;

      div.onclick = function (e) {
        let icon = div.getElementsByTagName('i')[1];
        if(icon.className.indexOf('checked') !== -1){
          icon.className = "icon-file";
          checkedData[i] = null;
        }else{
          icon.className = "icon-file checked";
          checkedData[i] = data;
        }

        console.log(checkedData.filter(Boolean))
      };

      icon.appendChild(icon_select);
      div.appendChild(icon);
      div.appendChild(p);
      return div;
    }

    for (i = 0; i < 20; i++) {
      let data = {
        src: i > 15 ? "file.png" : "folder.png",
        name: "文件" + i,
      };
      document.getElementById("contents").appendChild(createItem(data,i));
    }