diff --git a/examples/device/webusb_serial/website/application.js b/examples/device/webusb_serial/website/application.js index 5be082ca2..e9528a2ba 100644 --- a/examples/device/webusb_serial/website/application.js +++ b/examples/device/webusb_serial/website/application.js @@ -2,6 +2,9 @@ (async () => { // bind to the html + const uiBody = document.body; + const uiToggleThemeBtn = document.getElementById('theme-toggle'); + const uiConnectWebUsbSerialBtn = document.getElementById('connect_webusb_serial_btn'); const uiConnectSerialBtn = document.getElementById('connect_serial_btn'); const uiDisconnectBtn = document.getElementById('disconnect_btn'); @@ -27,7 +30,9 @@ const uiNearTheBottomThreshold = 100; // pixels from the bottom to trigger scroll const maxCommandHistoryLength = 123; // max number of command history entries - const maxReceivedDataLength = 8192/8; // max number of received data entries + const maxReceivedDataLength = 8192 / 8; // max number of received data entries + + const THEME_STATES = ['auto', 'light', 'dark']; class CommandHistoryEntry { constructor(text) { @@ -59,6 +64,16 @@ this.receivedData = []; // bind the UI elements + uiToggleThemeBtn.addEventListener('click', () => this.toggleTheme()); + // Listener for OS Theme Changes + window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => { + const currentPreference = localStorage.getItem('theme') || 'auto'; + // Only act if the user is in automatic mode + if (currentPreference === 'auto') { + this.setTheme('auto'); + } + }); + uiConnectWebUsbSerialBtn.addEventListener('click', () => this.connectWebUsbSerialPort()); uiConnectSerialBtn.addEventListener('click', () => this.connectSerialPort()); uiDisconnectBtn.addEventListener('click', () => this.disconnectPort()); @@ -88,6 +103,12 @@ } restoreState() { + // Restore theme choice + const savedTheme = localStorage.getItem('theme'); + if (savedTheme) { + this.setTheme(savedTheme); + } + // Restore command history let savedCommandHistory = JSON.parse(localStorage.getItem('commandHistory') || '[]'); for (const cmd of savedCommandHistory) { @@ -112,6 +133,38 @@ } } + setTheme(theme) { + const modeName = theme.charAt(0).toUpperCase() + theme.slice(1); + uiToggleThemeBtn.textContent = `Theme: ${modeName}`; + + if (theme === 'auto') { + // In auto mode, we rely on the OS preference. + // We check the media query and add/remove the class accordingly. + const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches; + if (prefersDark) { + uiBody.classList.add('dark-mode'); + } else { + uiBody.classList.remove('dark-mode'); + } + } else if (theme === 'light') { + // Force light mode by removing the class. + uiBody.classList.remove('dark-mode'); + } else if (theme === 'dark') { + // Force dark mode by adding the class. + uiBody.classList.add('dark-mode'); + } + + // Save the theme to localStorage + localStorage.setItem('theme', theme); + } + + toggleTheme() { + const currentTheme = localStorage.getItem('theme') || 'auto'; + const nextThemeIndex = (THEME_STATES.indexOf(currentTheme) + 1) % THEME_STATES.length; + const nextTheme = THEME_STATES[nextThemeIndex]; + this.setTheme(nextTheme); + } + appendCommandToHistory(commandHistoryEntry) { const wasNearBottom = uiCommandHistoryScrollbox.scrollHeight - uiCommandHistoryScrollbox.scrollTop <= uiCommandHistoryScrollbox.clientHeight + uiNearTheBottomThreshold; diff --git a/examples/device/webusb_serial/website/index.html b/examples/device/webusb_serial/website/index.html index 87fcfd6aa..bf02d0294 100644 --- a/examples/device/webusb_serial/website/index.html +++ b/examples/device/webusb_serial/website/index.html @@ -13,7 +13,8 @@