ant-design-pro/src/models/setting.ts

import { message } from 'antd';
import { Reducer } from 'redux';
import defaultSettings, { DefaultSettings } from '../../config/defaultSettings';

export interface SettingModelType {
  namespace: 'settings';
  state: DefaultSettings;
  reducers: {
    getSetting: Reducer<DefaultSettings>;
    changeSetting: Reducer<DefaultSettings>;
  };
}
let lessNodesAppended: boolean;

const updateTheme: (primaryColor?: string) => void = primaryColor => {
  // Don't compile less in production!
  // preview.pro.ant.design only do not use in your production;
  // preview.pro.ant.design 专用环境变量，请不要在你的项目中使用它。
  if (ANT_DESIGN_PRO_ONLY_DO_NOT_USE_IN_YOUR_PRODUCTION !== 'site') {
    return;
  }
  // Determine if the component is remounted
  if (!primaryColor) {
    return;
  }
  const hideMessage = message.loading('正在编译主题！', 0);
  function buildIt() {
    if (!(window as any).less) {
      // tslint:disable-next-line no-console
      return console.log('no less');
    }
    setTimeout(() => {
      (window as any).less
        .modifyVars({
          '@primary-color': primaryColor,
        })
        .then(() => {
          hideMessage();
        })
        .catch(() => {
          message.error('Failed to update theme');
          hideMessage();
        });
    }, 200);
  }
  if (!lessNodesAppended) {
    // insert less.js and color.less
    const lessStyleNode = document.createElement('link');
    const lessConfigNode = document.createElement('script');
    const lessScriptNode = document.createElement('script');
    lessStyleNode.setAttribute('rel', 'stylesheet/less');
    lessStyleNode.setAttribute('href', '/color.less');
    lessConfigNode.innerHTML = `
      window.less = {
        async: true,
        env: 'production',
        javascriptEnabled: true
      };
    `;
    lessScriptNode.src = 'https://gw.alipayobjects.com/os/lib/less.js/3.8.1/less.min.js';
    lessScriptNode.async = true;
    lessScriptNode.onload = () => {
      buildIt();
      lessScriptNode.onload = null;
    };
    document.body.appendChild(lessStyleNode);
    document.body.appendChild(lessConfigNode);
    document.body.appendChild(lessScriptNode);
    lessNodesAppended = true;
  } else {
    buildIt();
  }
};

const updateColorWeak: (colorWeak: boolean) => void = colorWeak => {
  const root = document.getElementById('root');
  if (root) {
    root.className = colorWeak ? 'colorWeak' : '';
  }
};

const SettingModel: SettingModelType = {
  namespace: 'settings',
  state: defaultSettings,
  reducers: {
    getSetting(state = defaultSettings) {
      const setting: Partial<DefaultSettings> = {};
      const urlParams = new URL(window.location.href);
      Object.keys(state).forEach(key => {
        if (urlParams.searchParams.has(key)) {
          const value = urlParams.searchParams.get(key);
          setting[key] = value === '1' ? true : value;
        }
      });
      const { primaryColor, colorWeak } = setting;

      if (state.primaryColor !== primaryColor) {
        updateTheme(primaryColor);
      }
      updateColorWeak(!!colorWeak);
      return {
        ...state,
        ...setting,
      };
    },
    changeSetting(state = defaultSettings, { payload }) {
      const urlParams = new URL(window.location.href);
      Object.keys(defaultSettings).forEach(key => {
        if (urlParams.searchParams.has(key)) {
          urlParams.searchParams.delete(key);
        }
      });
      Object.keys(payload).forEach(key => {
        if (key === 'collapse') {
          return;
        }
        let value = payload[key];
        if (value === true) {
          value = 1;
        }
        if (defaultSettings[key] !== value) {
          urlParams.searchParams.set(key, value);
        }
      });
      const { primaryColor, colorWeak, contentWidth } = payload;
      if (state.primaryColor !== primaryColor) {
        updateTheme(primaryColor);
      }
      if (state.contentWidth !== contentWidth && window.dispatchEvent) {
        window.dispatchEvent(new Event('resize'));
      }
      updateColorWeak(colorWeak);
      window.history.replaceState(null, 'setting', urlParams.href);
      return {
        ...state,
        ...payload,
      };
    },
  },
};
export default SettingModel;