trilium/src/public/javascripts/widgets/title_bar_buttons.js

import BasicWidget from "./basic_widget.js";
import options from "../services/options.js";
import utils from "../services/utils.js";

const TPL = `
<div class="title-bar-buttons">
    <style>
    .title-bar-buttons {
        margin-top: 4px;
        min-width: 100px;
        display: none;
    }
    </style>

    <button class="btn icon-action bx bx-minus minimize-btn"></button>
    <button class="btn icon-action bx bx-checkbox maximize-btn"></button>
    <button class="btn icon-action bx bx-x close-btn"></button>
</div>`;

export default class TitleBarButtonsWidget extends BasicWidget {
    doRender() {
        if (!options.is('nativeTitleBarVisible')) {
            this.$widget = $(TPL);
            this.$widget.show();

            const $minimizeBtn = this.$widget.find(".minimize-btn");
            const $maximizeBtn = this.$widget.find(".maximize-btn");
            const $closeBtn = this.$widget.find(".close-btn");

            $minimizeBtn.on('click', () => {
                $minimizeBtn.trigger('blur');
                const {remote} = require('electron');
                remote.BrowserWindow.getFocusedWindow().minimize();
            });

            $maximizeBtn.on('click', () => {
                $maximizeBtn.trigger('blur');
                const {remote} = require('electron');
                const focusedWindow = remote.BrowserWindow.getFocusedWindow();

                if (focusedWindow.isMaximized()) {
                    focusedWindow.unmaximize();
                } else {
                    focusedWindow.maximize();
                }
            });

            $closeBtn.on('click', () => {
                $closeBtn.trigger('blur');
                const {remote} = require('electron');
                remote.BrowserWindow.getFocusedWindow().close();
            });
        }
        else {
            this.$widget = $('<div>');
        }

        return this.$widget;
    }
}