radare/radare2-webui

import {BaseWidget} from './BaseWidget';
import {Hexdump} from '../modules/hexdump/Hexdump';
import {r2Wrapper, R2Actions} from '../core/R2Wrapper';

export class HexdumpWidget extends BaseWidget {
    constructor() {
        super('Hexdump', 'dark');
    }

    init() {
        r2.cmd('e cfg.bigendian', b => { this.isBigEndian = (b === 'true'); });
        this.firstTime = true;
    }

    draw() {
        if (this.firstTime) {
            this.firstTime = false;
            this.hexdump = new Hexdump(this.node, 16, this.isBigEndian);
            this.hexdump.setOnChangeCallback(function (offset, before, after) {
                console.log('changed');
            });
            r2Wrapper.registerListener(R2Actions.SEEK, () => {
                if (!this.displayed) {
                    return;
                }
                this.hexdump.refreshInitialOffset();
                this.hexdump.resetContainer(this.node);
                this.hexdump.draw();
            });
        } else {
            this.hexdump.resetContainer(this.node);
        }

        this.hexdump.draw();
    }
}