Products

Spreadsheet toolbar

In this section, you can find information about all the methods, settings, and events related to the data grid toolbar. Additionally, you can explore customizations and other essential settings for the toolbars.

Toolbar icons The use of Material icons style sheet is required for utilizing the toolbar.

Documentation

Methods

You can use the methods below to display, conceal or customize the toolbar.

Method Description
getToolbar Get the toolbar's current settings.
getToolbar(settings: Object) : Object
setToolbar Redefine the toolbar settings.
@param {Object} - Toolbar object, the allowed options are described in the table below.
setToolbar(settings: Object) : void
showToolbar Show the toolbar using the current settings.
showToolbar() : void
hideToolbar Hide the toolbar.
hideToolbar() : void
refreshToolbar Refresh the toolbar.
refreshToolbar(worksheet: Object) : void

Settings

It is possible to customize the toolbar items though the initialization using the following properties.

Property
toolbar?: boolean | 'extended' | function | object

Toolbar Object

It is possible to customize the toolbar items though the initialization using the following properties.

Property Description
Toolbar general properties
container: boolean Show the toolbar container border.
badge: boolean Add a badge container for each toolbar element.
title: boolean Show title below the icons.
responsive: boolean Responsive toolbar. Default: false
items: Items[] Items for the toolbar.
Toolbar item properties
type: string Element type: icon | divisor | label | select
content: string Content of the toolbar element
title: boolean Tooltip for the toolbar element
width: number Toolbar element width
active: boolean Initial state for the toolbar element
class: string CSS Class for each toolbar element
value: number The initially selected option for the type: select
render: method Render method parser for the elements in the dropdown when type: select
onclick: method When an item is clicked
onchange: method When a new item is selected. Valid for the type: select.
updateState: Function Create the item state controller.
updateState: function(toolbarElement: HTMLElement, toolbarInstance: Object, toolbarItem: HTMLElement, worksheet: Object) => void

Examples

Toolbar visibility

The example below demonstrates how to enable the default toolbar and programmatically show or hide it after initialization.

<html>
<script src="https://jspreadsheet.com/v10/jspreadsheet.js"></script>
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jspreadsheet.com/v10/jspreadsheet.css" type="text/css" />
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />

<div id="spreadsheet"></div>

<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Create the spreadsheet
let grid = jspreadsheet(document.getElementById('spreadsheet'), {
    worksheets: [
        { minDimensions: [8,5] },
    ],
    toolbar: true,
});

document.getElementById("showbtn").onclick = () => grid[0].parent.showToolbar();
document.getElementById("hidebtn").onclick = () => grid[0].parent.hideToolbar();
</script>

<input type='button' value='Show Toolbar' id="showbtn">
<input type='button' value='Hide Toolbar' id="hidebtn">
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet } from "@jspreadsheet/react";

const license = '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';

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();
    // Render component
    return (
        <>
            <Spreadsheet ref={spreadsheet} license={license} toolbar>
                <Worksheet minDimensions={[8,5]} />
            </Spreadsheet>
            <input type='button' value='Show Toolbar' onClick={() => spreadsheet.current[0].showToolbar()} />
            <input type='button' value='Hide Toolbar' onClick={() => spreadsheet.current[0].hideToolbar()} />
        </>
    );
}

<template>
    <Spreadsheet ref="spreadsheet" :license="license" toolbar>
        <Worksheet :minDimensions="[8,5]" />
    </Spreadsheet>
    <input type="button" value="Show Toolbar" @click="showToolbar" />
    <input type="button" value="Hide Toolbar" @click="hideToolbar" />
</template>

<script>
import { Spreadsheet, Worksheet } from "@jspreadsheet/vue";

const license = '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';

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    methods: {
        showToolbar() {
            this.$refs.spreadsheet.current[0].showToolbar();
        },
        hideToolbar() {
            this.$refs.spreadsheet.current[0].hideToolbar();
        },
    },
    data() {
        return {
            license,
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";

import "jspreadsheet/dist/jspreadsheet.css"
import "jsuites/dist/jsuites.css"

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('NTlkMmFkZTJkM2Q2ODFhMzRiYjQwNmMwNmI5Y2M2NjMyODNiYjgyY2ZmZjkyZTBiODNjMGZhYzQ1MGVlMjBmY2ZhYjFjMGI4YTEzNDZhMDY4NzZkOWYxYmYwZTEyMmU3ZjhjZjdhYzUzODEyODJhNzU3M2ZhYzEwNGQxZWUzZTUsZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpNME9EWTRORGd6TENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0ozWldJaUxDSnNiMk5oYkdodmMzUWlYU3dpY0d4aGJpSTZJak0wSWl3aWMyTnZjR1VpT2xzaWRqY2lMQ0oyT0NJc0luWTVJaXdpZGpFd0lpd2lkakV4SWl3aVkyaGhjblJ6SWl3aVptOXliWE1pTENKbWIzSnRkV3hoSWl3aWNHRnljMlZ5SWl3aWNtVnVaR1Z5SWl3aVkyOXRiV1Z1ZEhNaUxDSnBiWEJ2Y25SbGNpSXNJbUpoY2lJc0luWmhiR2xrWVhScGIyNXpJaXdpYzJWaGNtTm9JaXdpY0hKcGJuUWlMQ0p6YUdWbGRITWlMQ0pqYkdsbGJuUWlMQ0p6WlhKMlpYSWlMQ0p6YUdGd1pYTWlYU3dpWkdWdGJ5STZkSEoxWlgwPQ==');

@Component({
    selector: "app-root",
    template: `
        <div #spreadsheet></div>
        <input type="button" value="Add new validation" (click)="this.worksheets[0].showToolbar();" />
        <input type="button" value="Remove validation" (click)="this.worksheets[0].hideToolbar();" />`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];
    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            worksheets: [
                { minDimensions: [8,5] },
            ],
            toolbar: true
        });
    }
}

Custom toolbar method handler

The toolbar property can be set as a function, which allows for the addition of a new custom item to the default toolbar without the need to create a new toolbar from scratch. See the example below.

<html>
<script src="https://jspreadsheet.com/v10/jspreadsheet.js"></script>
<link rel="stylesheet" href="https://jspreadsheet.com/v10/jspreadsheet.css" type="text/css" />
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />

<div id="spreadsheet"></div>

<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Create the spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
    toolbar: function(toolbar) {
        // Add a new custom item in the end of my toolbar
        toolbar.items.push({
            tooltip: 'My custom item',
            content: 'share',
            onclick: function() {
                alert('Custom click');
            }
        });

        return toolbar;
    },
    worksheets: [{
        minDimensions: [8,10],
    }]
});
</script>
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet } from "@jspreadsheet/react";

const license = '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';

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();
    // Toolbar handler
    const toolbar = (toolbar) => {
        // Add a new custom item in the end of my toolbar
        toolbar.items.push({
            tooltip: 'My custom item',
            content: 'share',
            onclick: function() {
                alert('Custom click');
            }
        });
        return toolbar;
    }

    // Render component
    return (
        <Spreadsheet ref={spreadsheet} license={license} toolbar={toolbar}>
            <Worksheet minDimensions={[8,10]} />
        </Spreadsheet>
    );
}

<template>
    <Spreadsheet ref="spreadsheet" :license="license" toolbar>
        <Worksheet :minDimensions="[8,10]" />
    </Spreadsheet>
</template>

<script>
import { Spreadsheet, Worksheet } from "@jspreadsheet/vue";

const license = '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';

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    methods: {
        // Toolbar handler
        toolbar(toolbar) {
            // Add a new custom item in the end of my toolbar
            toolbar.items.push({
                tooltip: 'My custom item',
                content: 'share',
                onclick: function() {
                    alert('Custom click');
                }
            });
            return toolbar;
        }
    },
    data() {
        return {
            license,
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";

import "jspreadsheet/dist/jspreadsheet.css"
import "jsuites/dist/jsuites.css"

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

@Component({
    selector: "app-root",
    template: `<div #spreadsheet></div>`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];
    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            toolbar: function(toolbar) {
                // Add a new custom item in the end of my toolbar
                toolbar.items.push({
                    tooltip: 'My custom item',
                    content: 'share',
                    onclick: function() {
                        alert('Custom click');
                    }
                });

                return toolbar;
            },
            worksheets: [{
                minDimensions: [8,10],
            }]
        });
    }
}

Custom toolbar object

The toolbar property can be utilized to customize the items present in the spreadsheet toolbar.

<html>
<script src="https://jspreadsheet.com/v10/jspreadsheet.js"></script>
<link rel="stylesheet" href="https://jspreadsheet.com/v10/jspreadsheet.css" type="text/css" />
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />

<div id="spreadsheet"></div>

<script>
let customToolbar = {
    items: [
        {
            content: 'save',
            onclick: function () {
                jspreadsheet.current.download();
            }
        },
        {
            type:'divisor',
        },
        {
            type:'select',
            width: '160px',
            options: [ 'Verdana', 'Arial', 'Courier New' ],
            render: function(e) {
                return '<span style="font-family:' + e + '">' + e + '</span>';
            },
            onchange: function(a,b,c,d) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-family', d);
            }
        },
        {
            type: 'i',
            content: 'format_bold',
            onclick: function(a,b,c) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-weight', 'bold');
            }
        },
        {
            type: 'i',
            content: 'format_italic',
            onclick: function(a,b,c) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-style', 'italic');
            }
        },
        {
            content: 'search',
            onclick: function(a,b,c) {
                if (c.children[0].innerText == 'search') {
                    jspreadsheet.current.showSearch();
                    c.children[0].innerText = 'search_off';
                } else {
                    jspreadsheet.current.hideSearch();
                    c.children[0].innerText = 'search';
                }
            },
            tooltip: 'Toggle Search',
            updateState: function(a,b,c,worksheet) {
                // Call this one when the worksheet is opened and on the selection of any cells
                if (worksheet.options.search == true) {
                    c.children[0].innerText = 'search_off';
                } else {
                    c.children[0].innerText = 'search';
                }
            }
        }
    ]
}

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Create the spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
    worksheets: [{
        worksheetName: 'Toolbar example',
        minDimensions: [6,5],
    }],
    toolbar: customToolbar
});
</script>
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet } from "@jspreadsheet/react";

const license = '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';

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();
    // Toolbar handler
    const toolbar = {
        items: [{
                content: 'save',
                onclick: function () {
                    spreadsheet.current.download();
                }
            },
            {
                type:'divisor',
            },
            {
                type:'select',
                width: '160px',
                options: [ 'Verdana', 'Arial', 'Courier New' ],
                render: function(e) {
                    return '<span style="font-family:' + e + '">' + e + '</span>';
                },
                onchange: function(a,b,c,d) {
                    spreadsheet.current.setStyle(spreadsheet.current.getSelected(), 'font-family', d);
                }
            },
            {
                type: 'i',
                content: 'format_bold',
                onclick: function(a,b,c) {
                    spreadsheet.current.setStyle(spreadsheet.current.getSelected(), 'font-weight', 'bold');
                }
            },
            {
                type: 'i',
                content: 'format_italic',
                onclick: function(a,b,c) {
                    spreadsheet.current.setStyle(spreadsheet.current.getSelected(), 'font-style', 'italic');
                }
            },
            {
                content: 'search',
                onclick: function(a,b,c) {
                    if (c.children[0].innerText == 'search') {
                        spreadsheet.current.showSearch();
                        c.children[0].innerText = 'search_off';
                    } else {
                        spreadsheet.current.hideSearch();
                        c.children[0].innerText = 'search';
                    }
                },
                tooltip: 'Toggle Search',
                updateState: function(a,b,c,worksheet) {
                    // Call this one when the worksheet is opened and on the selection of any cells
                    if (worksheet.options.search == true) {
                        c.children[0].innerText = 'search_off';
                    } else {
                        c.children[0].innerText = 'search';
                    }
                }
            }
        ]
    }

    // Render component
    return (
        <Spreadsheet ref={spreadsheet} license={license} toolbar={toolbar}>
            <Worksheet minDimensions={[6,5]} worksheetName="Toolbar example" />
        </Spreadsheet>
    );
}

<template>
    <Spreadsheet ref="spreadsheet" :license="license" toolbar>
        <Worksheet :minDimensions="[6,5]" worksheetName="Toolbar example" />
    </Spreadsheet>
</template>

<script>
import { Spreadsheet, Worksheet } from "@jspreadsheet/vue";

const license = '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';

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Toolbar handler
        const toolbar = {
            items: [{
                    content: 'save',
                    onclick: function () {
                        jspreadsheet.current.download();
                    }
                },
                {
                    type:'divisor',
                },
                {
                    type:'select',
                    width: '160px',
                    options: [ 'Verdana', 'Arial', 'Courier New' ],
                    render: function(e) {
                        return '<span style="font-family:' + e + '">' + e + '</span>';
                    },
                    onchange: function(a,b,c,d) {
                        jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-family', d);
                    }
                },
                {
                    type: 'i',
                    content: 'format_bold',
                    onclick: function(a,b,c) {
                        jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-weight', 'bold');
                    }
                },
                {
                    type: 'i',
                    content: 'format_italic',
                    onclick: function(a,b,c) {
                        jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-style', 'italic');
                    }
                },
                {
                    content: 'search',
                    onclick: function(a,b,c) {
                        if (c.children[0].innerText == 'search') {
                            jspreadsheet.current.showSearch();
                            c.children[0].innerText = 'search_off';
                        } else {
                            jspreadsheet.current.hideSearch();
                            c.children[0].innerText = 'search';
                        }
                    },
                    tooltip: 'Toggle Search',
                    updateState: function(a,b,c,worksheet) {
                        // Call this one when the worksheet is opened and on the selection of any cells
                        if (worksheet.options.search == true) {
                            c.children[0].innerText = 'search_off';
                        } else {
                            c.children[0].innerText = 'search';
                        }
                    }
                }
            ]
        }

        return {
            toolbar,
            license,
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";

import "jspreadsheet/dist/jspreadsheet.css"
import "jsuites/dist/jsuites.css"

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Custom toolbar definitions
let customToolbar = {
    items: [
        {
            content: 'save',
            onclick: function () {
                jspreadsheet.current.download();
            }
        },
        {
            type:'divisor',
        },
        {
            type:'select',
            width: '160px',
            options: [ 'Verdana', 'Arial', 'Courier New' ],
            render: function(e) {
                return '<span style="font-family:' + e + '">' + e + '</span>';
            },
            onchange: function(a,b,c,d) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-family', d);
            }
        },
        {
            type: 'i',
            content: 'format_bold',
            onclick: function(a,b,c) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-weight', 'bold');
            }
        },
        {
            type: 'i',
            content: 'format_italic',
            onclick: function(a,b,c) {
                jspreadsheet.current.setStyle(jspreadsheet.current.getSelected(), 'font-style', 'italic');
            }
        },
        {
            content: 'search',
            onclick: function(a,b,c) {
                if (c.children[0].innerText == 'search') {
                    jspreadsheet.current.showSearch();
                    c.children[0].innerText = 'search_off';
                } else {
                    jspreadsheet.current.hideSearch();
                    c.children[0].innerText = 'search';
                }
            },
            tooltip: 'Toggle Search',
            updateState: function(a,b,c,worksheet) {
                // Call this one when the worksheet is opened and on the selection of any cells
                if (worksheet.options.search == true) {
                    c.children[0].innerText = 'search_off';
                } else {
                    c.children[0].innerText = 'search';
                }
            }
        }
    ]
}

@Component({
    selector: "app-root",
    template: `<div #spreadsheet></div>`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];
    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            worksheets: [{
                worksheetName: 'Toolbar example',
                minDimensions: [6,5],
            }]
            toolbar: customToolbar
        });
    }
}

Default toolbar code

const J = jspreadsheet;

const getDefault = function(toolbar) {
    let items = [];

    items.push({
        content: 'undo',
        onclick: function() {
            if (J.current) {
                J.current.undo();
            }
        }
    });

    items.push({
        content: 'redo',
        onclick: function() {
            if (J.current) {
                J.current.redo();
            }
        }
    });

    items.push({
        content: 'save',
        onclick: function () {
            if (J.current) {
                J.current.download();
            }
        }
    });

    items.push({
        type:'divisor',
    });

    items.push({
        type:'select',
        width: '120px',
        options: [ 'Verdana', 'Arial', 'Courier New' ],
        render: function(e) {
            return '<span style="font-family:' + e + '">' + e + '</span>';
        },
        onchange: function(a,b,c,d) {
            if (J.current) {
                J.current.setStyle(J.current.getSelected(false, true), 'font-family', d);
            }
        }
    });

    items.push({
        type: 'select',
        width: '48px',
        content: 'format_size',
        options: ['x-small','small','medium','large','x-large'],
        render: function(e) {
            return '<span style="font-size:' + e + '">' + e + '</span>';
        },
        onchange: function(a,b,c,d) {
            if (J.current) {
                J.current.setStyle(J.current.getSelected(false, true), 'font-size', d);
            }
        }
    });

    items.push({
        type: 'select',
        options: ['format_align_left','format_align_center','format_align_right','format_align_justify'],
        render: function(e) {
            return '<i class="material-icons">' + e + '</i>';
        },
        onchange: function(a,b,c,d) {
            if (J.current) {
                J.current.setStyle(J.current.getSelected(false, true), 'text-align', d.split('_')[2]);
            }
        },
        updateState: function(a,b,c,d) {
            let cell = d.selectedCell;
            if (cell && cell.length) {
                if (d.records[cell[1]][cell[0]].element) {
                    let value = 'format_align_' + (d.records[cell[1]][cell[0]].element.style.textAlign || d.options.defaultColAlign || 'center');
                    let index = this.picker.options.data.indexOf(value);
                    c.picker.setValue(index);
                }
            }
        }
    });
    items.push({
        type: 'i',
        content: 'format_bold',
        k: 'font-weight',
        v: 'bold'
    });

    items.push({
        type: 'color',
        content: 'format_color_text',
        k: 'color'
    });

    items.push({
        type: 'color',
        content: 'format_color_fill',
        k: 'background-color'
    });

    if (toolbar === 'extended' || typeof(toolbar) === 'function') {
        let verticalAlign = ['top','middle','bottom'];

        items.push({
            type: 'select',
            options: ['vertical_align_top','vertical_align_center','vertical_align_bottom'],
            render: function(e) {
                return '<i class="material-icons">' + e + '</i>';
            },
            value:  1,
            onchange: function(a,b,c,d,e) {
                if (J.current) {
                    J.current.setStyle(J.current.getSelected(false, true), 'vertical-align', verticalAlign[e]);
                }
            },
            updateState: function(a,b,c,d) {
                let cell = d.selectedCell;
                if (cell && cell.length) {
                    if (d.records[cell[1]][cell[0]].element) {
                        let value = d.records[cell[1]][cell[0]].element.style.verticalAlign || 'middle';
                        let index = verticalAlign.indexOf(value);
                        c.picker.setValue(index);
                    }
                }
            }
        });

        items.push({
            content: 'web',
            onclick: function(a,b,c) {
                if (J.current) {
                    let h = J.current.getHighlighted();
                    if (h && h.length) {
                        let cell = J.helpers.getColumnNameFromCoords(h[0], h[1]);
                        if (J.current.records[h[1]][h[0]].merged) {
                            J.current.removeMerge(cell);
                        } else {
                            let colspan = h[2] - h[0] + 1;
                            let rowspan = h[3] - h[1] + 1;
                            J.current.setMerge(cell, colspan, rowspan);
                        }
                    }
                }
            },
            tooltip: T('Merge the selected cells'),
        });
    }

    items.push({
        type: 'select',
        data: [ 'border_all', 'border_outer', 'border_inner', 'border_horizontal', 'border_vertical', 'border_left', 'border_top', 'border_right', 'border_bottom', 'border_clear' ],
        columns: 5,
        render: function(e) {
            return '<i class="material-icons">' + e + '</i>';
        },
        right: true,
        onchange: function(a,b,c,d,e) {
            let selected = J.current.getHighlighted();
            let type = d;

            if (selected) {
                // Default options
                let thickness = b.thickness || 1;
                let color = b.color || 'black';
                let style = {};

                // Matrix
                let px = selected[0];
                let py = selected[1];
                let ux = selected[2];
                let uy = selected[3];

                for (let j = selected[1]; j <= selected[3]; j++) { // Row - py - uy
                    for (let i = selected[0]; i <= selected[2]; i++) { // Col - px - ux
                        let columnName = Helpers.getColumnNameFromCoords(i, j);

                        if (! style[columnName]) {
                            style[columnName] = '';
                        }

                        if ((type == 'border_left' || type == 'border_outer') && i == px) {
                            style[columnName] += 'border-left: ' + thickness + 'px solid ' + color + '; ';
                        } else if ((type == 'border_inner' || type == 'border_vertical') && i > px) {
                            style[columnName] += 'border-left: ' + thickness + 'px solid ' + color + '; ';
                        } else if (type == 'border_all') {
                            style[columnName] += 'border-left: ' + thickness + 'px solid ' + color + '; ';
                        } else {
                            style[columnName] += 'border-left: ; ';
                        }

                        if ((type == 'border_all' || type == 'border_right' || type == 'border_outer') && i == ux) {
                            style[columnName] += 'border-right: ' + thickness + 'px solid ' + color + '; ';
                        } else {
                            style[columnName] += 'border-right: ; ';
                        }

                        if ((type == 'border_top' || type == 'border_outer') && j == py) {
                            style[columnName] += 'border-top: ' + thickness + 'px solid ' + color + '; ';
                        } else if ((type == 'border_inner' || type == 'border_horizontal') && j > py) {
                            style[columnName] += 'border-top: ' + thickness + 'px solid ' + color + '; ';
                        } else if (type == 'border_all') {
                            style[columnName] += 'border-top: ' + thickness + 'px solid ' + color + '; ';
                        } else {
                            style[columnName] += 'border-top: ; ';
                        }

                        if ((type == 'border_all' || type == 'border_bottom' || type == 'border_outer') && j == uy) {
                            style[columnName] += 'border-bottom: ' + thickness + 'px solid ' + color + '; ';
                        } else {
                            style[columnName] += 'border-bottom: ; ';
                        }
                    }
                }

                if (Object.keys(style)) {
                    J.current.setStyle(style, null, null, true);
                }
            }
        },
        onload: function(a, b) {
            // Border color
            let container = document.createElement('div');
            let div = document.createElement('div');
            let i = document.createElement('i');

            let colorPicker = jSuites.color(div, {
                closeOnChange: false,
                onchange: function(o, v) {
                    o.parentNode.children[1].style.color = v;
                    b.color = v;
                },
            });

            i.classList.add('material-icons');
            i.innerHTML = 'color_lens';
            i.onclick = function() {
                colorPicker.open();
            }

            container.appendChild(div);
            container.appendChild(i);
            a.children[1].appendChild(container);

            div = document.createElement('div');
            jSuites.picker(div, {
                type: 'select',
                data: [ 1, 2, 3, 4, 5 ],
                render: function(e) {
                    return '<div style="height: ' + e + 'px; width: 50px; background-color: black;"></div>';
                },
                onchange: function(a, k, c, d) {
                    b.thickness = d;
                },
                width: '80px',
            });
            a.children[1].appendChild(div);

            div = document.createElement('div');
            div.style.flex = '1'
            a.children[1].appendChild(div);
        }
    });

    items.push({
        type:'divisor',
    });

    items.push({
        content: 'fullscreen',
        onclick: function(a,b,c) {
            if (c.children[0].innerText == 'fullscreen') {
                J.current.fullscreen(true);
                c.children[0].innerText = 'fullscreen_exit';
            } else {
                J.current.fullscreen(false);
                c.children[0].innerText = 'fullscreen';
            }
        },
        tooltip: 'Toggle Fullscreen',
        updateState: function(a,b,c,d) {
            if (d.parent.config.fullscreen == true) {
                c.children[0].innerText = 'fullscreen_exit';
            } else {
                c.children[0].innerText = 'fullscreen';
            }
        }
    });

    items.push({
        content: 'search',
        onclick: function(a,b,c) {
            if (c.children[0].innerText == 'search') {
                Search.show.call(J.current);
                c.children[0].innerText = 'search_off';
            } else {
                Search.hide.call(J.current);
                c.children[0].innerText = 'search';
            }
        },
        tooltip: 'Toggle Search',
        updateState: function(a,b,c,d) {
            if (d.options.search == true) {
                c.children[0].innerText = 'search_off';
            } else {
                c.children[0].innerText = 'search';
            }
        }
    });

    return items;
}

Edit this page on GitHub