/**
 * Created by GUY on 2016/12/2.
 *
 * @class BI.FlexVerticalLayout
 * @extends BI.Layout
 */
BI.FlexVerticalLayout = BI.inherit(BI.Layout, {
    props: function () {
        return BI.extend(BI.FlexVerticalLayout.superclass.props.apply(this, arguments), {
            baseCls: "bi-f-v",
            horizontalAlign: BI.HorizontalAlign.Left,
            verticalAlign: BI.VerticalAlign.Top,
            rowSize: [],
            scrolly: true,
            hgap: 0,
            vgap: 0,
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0
        });
    },
    render: function () {
        BI.FlexVerticalLayout.superclass.render.apply(this, arguments);
        var o = this.options;
        this.element.addClass("h-" + o.horizontalAlign).addClass("v-" + o.verticalAlign);
        if (o.scrollable === true || o.scrollx === true) {
            this.element.addClass("f-scroll-x");
        }
        if (o.scrollable === true || o.scrolly === true) {
            this.element.addClass("f-scroll-y");
        }
        this.populate(this.options.items);
    },

    _hasFill: function () {
        var o = this.options;
        if (o.rowSize.length > 0) {
            return o.rowSize.indexOf("fill") >= 0;
        }
        return BI.some(o.items, function (i, item) {
            if (item.height === "fill") {
                return true;
            }
        });
    },

    _addElement: function (i, item) {
        var o = this.options;
        var w = BI.FlexVerticalLayout.superclass._addElement.apply(this, arguments);
        var rowSize = o.rowSize.length > 0 ? o.rowSize[i] : item.height >= 1 ? null : item.height;
        if (o.rowSize.length > 0) {
            if (item.height >= 1 && o.rowSize[i] >= 1 && o.rowSize[i] !== item.height) {
                rowSize = null;
            }
        }
        w.element.css({
            position: "relative"
        });
        if (rowSize !== "auto") {
            if (rowSize === "fill" || rowSize === "") {
                if (o.verticalAlign !== BI.VerticalAlign.Stretch) {
                    if (o.scrollable === true || o.scrolly === true) {
                        w.element.addClass("f-s-n");
                    }
                }
                // 当既有动态宽度和自适应宽度的时候只压缩自适应
                if (rowSize === "" && this._hasFill()) {
                    w.element.addClass("f-s-n");
                }
            } else {
                w.element.addClass("f-s-n");
            }
        }
        if (rowSize > 0) {
            w.element.height(rowSize < 1 ? ((rowSize * 100).toFixed(1) + "%") : (rowSize / BI.pixRatio + BI.pixUnit));
        }
        if (rowSize === "fill") {
            w.element.addClass("f-f");
        }
        w.element.addClass("c-e");
        if (i === 0) {
            w.element.addClass("f-c");
        }
        if (i === o.items.length - 1) {
            w.element.addClass("l-c");
        }
        this._handleGap(w, item, null, i);
        return w;
    },

    populate: function (items) {
        BI.FlexVerticalLayout.superclass.populate.apply(this, arguments);
        this._mount();
    }
});
BI.shortcut("bi.flex_vertical", BI.FlexVerticalLayout);