fineui/src/core/platform/web/config.js

// 工程配置
BI.prepares.push(function () {
    // 注册布局
    var _isSupprtFlex;
    var isSupportFlex = function () {
        if(_isSupprtFlex == null) {
            _isSupprtFlex = !!(BI.isSupportCss3 && BI.isSupportCss3("flex"));
        }
        return _isSupprtFlex;
    };
    BI.Plugin.registerWidget("bi.horizontal", function (ob) {
        if (!BI.isIE() && isSupportFlex()) {
            return BI.extend(ob, {type: "bi.flex_horizontal"});
        }
        return ob;
    });
    BI.Plugin.registerWidget("bi.center_adapt", function (ob) {
        if (!BI.isIE() && isSupportFlex() && ob.items && ob.items.length <= 1) {
            // 有滚动条的情况下需要用到flex_wrapper_center布局
            if (ob.scrollable === true || ob.scrollx === true || ob.scrolly === true) {
                // 不是IE用flex_wrapper_center布局
                return BI.extend(ob, {type: "bi.flex_wrapper_center"});
            }
            return BI.extend(ob, {type: "bi.flex_center"});
        }
        return ob;
    });
    BI.Plugin.registerWidget("bi.vertical_adapt", function (ob) {
        if (!BI.isIE() && isSupportFlex()) {
            // 有滚动条的情况下需要用到flex_wrapper_center布局
            if (ob.scrollable === true || ob.scrollx === true || ob.scrolly === true) {
                // 不是IE用flex_wrapper_center布局
                return BI.extend({}, ob, {type: "bi.flex_wrapper_vertical_center"});
            }
            return BI.extend(ob, {type: "bi.flex_vertical_center"});
        }
        return ob;
    });
    BI.Plugin.registerWidget("bi.float_center_adapt", function (ob) {
        if (!BI.isIE() && isSupportFlex()) {
            // 有滚动条的情况下需要用到flex_wrapper_center布局
            if (ob.scrollable === true || ob.scrollx === true || ob.scrolly === true) {
                // 不是IE用flex_wrapper_center布局
                return BI.extend({}, ob, {type: "bi.flex_wrapper_center"});
            }
            return BI.extend(ob, {type: "bi.flex_center"});
        }
        return ob;
    });
});