chenhaodong / mew-iview

  import Notification from '../base/notification';
  
  const prefixCls = 'ivu-message';
  const iconPrefixCls = 'ivu-icon';

  const prefixKey = 'ivu_message_key_';

  
  let defaultDuration = 1.5;

  let top;
  let messageInstance;

  let key = 1;

  
  const iconTypes = {
      'info': 'information-circled',
      'success': 'checkmark-circled',
      'warning': 'android-alert',
      'error': 'close-circled',
      'loading': 'load-c'
  };
  
  function getMessageInstance () {
      messageInstance = messageInstance || Notification.newInstance({
          prefixCls: prefixCls,

          style: {
              top: `${top}px`
          }
      });
  
      return messageInstance;
  }
  
  function notice (content, duration = defaultDuration, type, onClose) {
      if (!onClose) {
          onClose = function () {
  
          }
      }

      const iconType = iconTypes[type];

  
      // if loading
      const loadCls = type === 'loading' ? ' ivu-load-loop' : '';
  
      let instance = getMessageInstance();
  
      instance.notice({

          key: `${prefixKey}${key}`,

          duration: duration,
          style: {},

          transitionName: 'move-up',

          content: `
              <div class="${prefixCls}-custom-content ${prefixCls}-${type}">
                  <i class="${iconPrefixCls} ${iconPrefixCls}-${iconType}${loadCls}"></i>
                  <span>${content}</span>
              </div>
          `,
          onClose: onClose
      });

  
      // 用于手动消除
      return (function () {
          let target = key++;
  
          return function () {
              instance.remove(`${prefixKey}${target}`);
          }
      })();

  }
  
  export default {
      info (content, duration, onClose) {
          return notice(content, duration, 'info', onClose);
      },
      success (content, duration, onClose) {
          return notice(content, duration, 'success', onClose);
      },
      warning (content, duration, onClose) {
          return notice(content, duration, 'warning', onClose);
      },
      error (content, duration, onClose) {
          return notice(content, duration, 'error', onClose);
      },
      loading (content, duration, onClose) {
          return notice(content, duration, 'loading', onClose);
      },
      config (options) {
          if (options.top) {
              top = options.top;
          }
          if (options.duration) {
              defaultDuration = options.duration;
          }

      },
      destroy () {
          let instance = getMessageInstance();
          messageInstance = null;
          instance.destroy();

      }
  }