rc-dock/es/DockBox.js

dock layout for react component

import * as React from "react";
import { DockContextType } from "./DockData";
import { Divider } from "./Divider";
import { DockPanel } from "./DockPanel";
export class DockBox extends React.PureComponent {
    constructor() {
        super(...arguments);
        this.getRef = (r) => {
            this._ref = r;
        };
        this.getDividerData = (idx) => {
            if (!this._ref) {
                return null;
            }
            let { children, mode } = this.props.boxData;
            let nodes = this._ref.childNodes;
            if (nodes.length !== children.length * 2 - 1) {
                return;
            }
            let dividerChildren = [];
            for (let i = 0; i < children.length; ++i) {
                if (mode === 'vertical') {
                    dividerChildren.push({ size: nodes[i * 2].offsetHeight, minSize: children[i].minHeight });
                }
                else {
                    dividerChildren.push({ size: nodes[i * 2].offsetWidth, minSize: children[i].minWidth });
                }
            }
            return {
                element: this._ref,
                beforeDivider: dividerChildren.slice(0, idx),
                afterDivider: dividerChildren.slice(idx)
            };
        };
        this.changeSizes = (sizes) => {
            let { children } = this.props.boxData;
            if (children.length !== sizes.length) {
                return;
            }
            for (let i = 0; i < children.length; ++i) {
                children[i].size = sizes[i];
            }
            this.forceUpdate();
        };
        this.onDragEnd = () => {
            this.context.onSilentChange(null, 'move');
        };
    }
    render() {
        let { boxData } = this.props;
        let { minWidth, minHeight, size, children, mode, id, widthFlex, heightFlex } = boxData;
        let isVertical = mode === 'vertical';
        let childrenRender = [];
        for (let i = 0; i < children.length; ++i) {
            if (i > 0) {
                childrenRender.push(React.createElement(Divider, { idx: i, key: i, isVertical: isVertical, onDragEnd: this.onDragEnd, getDividerData: this.getDividerData, changeSizes: this.changeSizes }));
            }
            let child = children[i];
            if ('tabs' in child) {
                childrenRender.push(React.createElement(DockPanel, { size: child.size, panelData: child, key: child.id }));
                // render DockPanel
            }
            else if ('children' in child) {
                childrenRender.push(React.createElement(DockBox, { size: child.size, boxData: child, key: child.id }));
            }
        }
        let cls;
        let flex = 1;
        if (mode === 'vertical') {
            cls = 'dock-box dock-vbox';
            if (widthFlex != null) {
                flex = widthFlex;
            }
        }
        else {
            // since special boxes dont reuse this render function, this can only be horizontal box
            cls = 'dock-box dock-hbox';
            if (heightFlex != null) {
                flex = heightFlex;
            }
        }
        let flexGrow = flex * size;
        let flexShrink = flex * 1000000;
        if (flexShrink < 1) {
            flexShrink = 1;
        }
        return (React.createElement("div", { ref: this.getRef, className: cls, "data-dockid": id, style: { minWidth, minHeight, flex: `${flexGrow} ${flexShrink} ${size}px` } }, childrenRender));
    }
}
DockBox.contextType = DockContextType;