/**
 * power
 * @author luoyifan
 * 2018-11-30 22:45:00
 */
(function ($) {
  "use strict";

  $.extend($.yvan, {
    showDialog: function ($sender, param) {
      //克隆参数
      if ($.type(param) === 'string') {
        param = {dialogId: param};
      }

      if (!param.hasOwnProperty('dialogId')) {
        console.error('请指定 showDialog.dialogId');
        return;
      }

      $sender = $($sender);

      //对话框渲染位置
      var $target = $sender.closest('.bizWindow');

      //沿路线上找对话框的定义
      var $power = $sender;
      var dialogOptions;
      while (true) {
        $power = $power.up('power');
        if ($power.length <= 0) {
          break;
        }
        if (!$power.data('power').hasOwnProperty('options')) {
          $power = $power.parent();
          continue;
        }
        var options = $power.data('power').options;
        if (options.hasOwnProperty('dialogs') && options.dialogs.hasOwnProperty(param.dialogId)) {
          dialogOptions = options.dialogs[param.dialogId];
          break;
        } else {
          $power = $power.parent();
          continue;
        }
      }

      //填充缺省参数,并复制 dialogOptions
      dialogOptions = $.extend(true, {}, $.fn.power.dialogs.defaults, dialogOptions, param);

      //解决底部按钮，需要 onBeforeRender 进行按需加载的问题
      if ($.type(dialogOptions.buttons) === 'array') {
        for (var i = dialogOptions.buttons.length - 1; i >= 0; i--) {
          var b = dialogOptions.buttons[i];
          if ($.type(b.onBeforeRender) === 'function') {
            if (b.onBeforeRender.call(dialogOptions) === false) {
              dialogOptions.buttons.splice(i, 1);
            }
          }
        }
      }

      //dialog 内容是函数，则调用函数，并获取结果
      if ($.type(dialogOptions) === 'function') {
        dialogOptions = dialogOptions.call(this, param);
      }

      //对话框定义中没有 center 的定义
      if (!dialogOptions.hasOwnProperty('center')) {
        console.error('dialog ' + param.dialogId + ' not exists!');
        return;
      }

      if (dialogOptions.hasOwnProperty('$target')) {
        $target = dialogOptions.$target;
      }

      //记录旧的 focus 控件
      var oldFocus = document.activeElement;

      //target 下面构建一个 window , window 下构建一个 power
      var $window = $('<div></div>');
      $.yvan.fillCommonProperties($window, dialogOptions);
      $window.attr('xtype', 'dialog');
      $window.attr('id', param.dialogId);
      var $power = $('<div></div>');
      $window.append($power);
      $target.append($window);
      $power.progress();

      $window.power('processToolbar', {
        $target: $window,
        item: dialogOptions,
        context: param
      });
      $window.power('processFooter', {
        $target: $window,
        item: dialogOptions,
        context: param
      });

      $window.dialog($.extend({}, dialogOptions, {
        onOpen: function () {
          //计算窗口位置
          var $w = $(this).parent();

          var iframeWidth = $w.parent().width();
          var iframeHeight = $w.parent().height();

          var windowWidth = $w.width();
          var windowHeight = $w.height();

          var setWidth = (iframeWidth - windowWidth) / 2;
          var setHeight = (iframeHeight - windowHeight) / 2;
          if (iframeHeight < windowHeight || setHeight < 0) {
            setHeight = 0;
          }
          if (iframeWidth < windowWidth || setWidth < 0) {
            setWidth = 0;
          }
          $w.css({left: setWidth, top: setHeight});

          //注册快捷键，存放焦点
          if (window.hasOwnProperty('shortcut')) {
            shortcut.createContainer($power, dialogOptions);
            shortcut.registe($power, 'esc', function () {
              $window.window('close');
            });
          }
          //不能随意改变focus，searchbox 的 widgetTmpValue 会被无理由触发
          //setTimeout(function () {
          //  $power[0].focus();
          //}, 10);
          $power.power($.yvan.props(dialogOptions, ['north', 'center', 'west', 'east', 'south']), dialogOptions);

          if (dialogOptions.onOpen) {
            return dialogOptions.onOpen.apply(this, arguments);
          }

          $power.progress('close');
        },
        onClose: function () {
          if (dialogOptions.onClose) {
            var ss = dialogOptions.onClose.apply(this, arguments);
            //删除元素，否则有多个
            $("#" + param.dialogId).remove();
            return ss;
          }

          $power.remove();
          $window.window('destroy');

          //还原旧焦点
          if (oldFocus) {
            setTimeout(function () {
              oldFocus.focus();
            }, 10);
          }

          $("#" + param.dialogId).remove();
        },
        onMove: function (left, top) {
          //防止越界
          var $w = $(this);
          if (left < 0) {
            $w.window("move", {left: 0});
          }
          if (top < 0) {
            $w.window("move", {top: 0});
          }
          if (dialogOptions.onMove) {
            return dialogOptions.onMove.apply(this, arguments);
          }
        }
      }));

      //实时拖动
      $window.window('window').draggable({
        onStartDrag: function () {
        },
        onDrag: function (e) {
          $window.window('move', {
            left: e.data.left,
            top: e.data.top
          });
        },
        onStopDrag: function (e) {
          $window.window('move', {
            left: e.data.left,
            top: e.data.top
          });
        }
      });
      return $window;
    }
  });
})(jQuery);