@simplenodeorm/simplenodereport/src/components/DesignCanvas.js

Simple Node Report is a React report designer for the simplenodeorm. Simple Node Report allows the user to create, save and run WYSIWYG style HTML reports in simplenodeorm. To use the report designer call the application with the desired simplenodeorm c

/*
 * Copyright (c) 2019 simplenodeorm.org
 */

import React from 'react';
import "../app/App.css";

const loadChildren = (data) => {
    return data.map((component) => {
        return component;
    });
};

class DesignCanvas extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            error: '',
            marginLeft: this.props.marginLeft,
            marginTop: this.props.marginTop,
            height: this.props.height,
            width: this.props.width
        };
        
        this.mountedReportObjects = [];
        this.reportObjectConfigurations = [];
        this.getRect = this.getRect.bind(this);
        this.setMountedComponent = this.setMountedComponent.bind(this);
        this.getSelectedReportObjects = this.getSelectedReportObjects.bind(this);
    }

    componentDidMount () {
        const curobj = this;
        const canvas = this.myCanvas;
        
        this.contextMenu = function(e) { 
            if (e.target === canvas) { 
                e.preventDefault();
                curobj.props.showPopup(e, curobj.props.location);
                return false;
            }
        };
    }
    
    componentWillReceiveProps(nextProps) {
        this.setState({
            height: nextProps.height,
            width: nextProps.width, 
            marginLeft: nextProps.marginLeft, 
            marginTop: nextProps.marginTop});

    }
    
    getReportObjectConfigurations() {
        return this.reportObjectConfigurations;
    }
    
    removeSelectedReportObjects() {
        if (this.reportObjectConfigurations) {
            for (let i = 0; i < this.reportObjectConfigurations.length; ++i) {
                if (this.reportObjectConfigurations[i].props.config.selected) {
                    this.reportObjectConfigurations[i].props.config.objectType = 'deleted';
                    this.mountedReportObjects[i].remove();
                }
            }
            this.setState(this.state);
        }
    }
    
    getSelectedReportObjects() {
        let retval = [];
        if (this.reportObjectConfigurations) {
            for (let i = 0; i < this.reportObjectConfigurations.length; ++i) {
                if (this.reportObjectConfigurations[i].props.config.selected) {
                    this.reportObjectConfigurations[i].props.config.myIndex = i;
                    retval.push(this.reportObjectConfigurations[i].props.config);
                }
            }
        }
        return retval;
    }
    
    removeAllReportObjects() {
        if (this.reportObjectConfigurations) {
            for (let i = 0; i < this.reportObjectConfigurations.length; ++i) {
               this.mountedReportObjects[i].remove();
            }
            this.setState(this.state);
        }
    }

    render() {
        const {height, width, marginLeft, marginTop} = this.state;
        
        const canvasStyle = {
            height: (height-1) + 'px',
            width: width + 'px',
            marginLeft: (marginLeft-1) + 'px',
            marginTop: (marginTop-1) + 'px',
        };
        
        return <div className="designCanvas"
                    onKeyUp={this.onKeyUp}
            ref={(c) => {this.myCanvas = c;}}
                    style={canvasStyle}>
            {(this.reportObjectConfigurations.length > 0)
                && loadChildren(this.reportObjectConfigurations)}</div>
    }
    
    getRect() {
        const {height, width} = this.state;
        return {
            left: 0,
            top: 0,
            width: Math.round(width),
            height: Math.round(height)
        };
    }
    
    setMountedComponent(comp) {
        this.mountedReportObjects[comp.props.index] = comp;
    }
}

    
export {DesignCanvas};