layui.define(["jquery", "element"], function (exports) {
  var $ = layui.jquery;
  var defer = $.Deferred();
  var fullScreen = new (function () {
    this.func = null;

    this.onFullchange = function (func) {
      this.func = func;
      var evts = [
        "fullscreenchange",
        "webkitfullscreenchange",
        "mozfullscreenchange",
        "MSFullscreenChange",
      ];
      for (var i = 0; i < evts.length && func; i++) {
        window.addEventListener(evts[i], this.func);
      }
    };

    this.fullScreen = function (dom) {
      var docElm =
        (dom && document.querySelector(dom)) || document.documentElement;
      if (docElm.requestFullscreen) {
        docElm.requestFullscreen();
      } else if (docElm.mozRequestFullScreen) {
        docElm.mozRequestFullScreen();
      } else if (docElm.webkitRequestFullScreen) {
        docElm.webkitRequestFullScreen();
      } else if (docElm.msRequestFullscreen) {
        docElm.msRequestFullscreen();
      } else {
        defer.reject("");
      }
      defer.resolve("返回值");
      return defer.promise();
    };

    this.fullClose = function () {
      if (this.isFullscreen()) {
        if (document.exitFullscreen) {
          document.exitFullscreen();
        } else if (document.mozCancelFullScreen) {
          document.mozCancelFullScreen();
        } else if (document.webkitCancelFullScreen) {
          document.webkitCancelFullScreen();
        } else if (document.msExitFullscreen) {
          document.msExitFullscreen();
        }
      }
      defer.resolve("返回值");
      return defer.promise();
    };

    this.isFullscreen = function () {
      return (
        document.fullscreenElement ||
        document.msFullscreenElement ||
        document.mozFullScreenElement ||
        document.webkitFullscreenElement ||
        false
      );
    };
  })();
  exports("fullscreen", fullScreen);
});