mirror of
https://github.com/wailsapp/wails.git
synced 2025-05-05 00:49:29 +08:00
346 lines
9.0 KiB
Go
346 lines
9.0 KiB
Go
//go:build windows
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package application
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import (
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"fmt"
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"github.com/wailsapp/go-webview2/webviewloader"
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"github.com/wailsapp/wails/v3/internal/operatingsystem"
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"golang.org/x/sys/windows"
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"os"
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"strconv"
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"sync"
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"syscall"
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"unsafe"
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"github.com/wailsapp/wails/v3/pkg/events"
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"github.com/wailsapp/wails/v3/pkg/w32"
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"github.com/samber/lo"
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)
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var windowClassName = lo.Must(syscall.UTF16PtrFromString("WailsWebviewWindow"))
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type windowsApp struct {
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parent *App
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windowClass w32.WNDCLASSEX
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instance w32.HINSTANCE
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windowMap map[w32.HWND]*windowsWebviewWindow
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windowMapLock sync.RWMutex
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systrayMap map[w32.HMENU]*windowsSystemTray
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systrayMapLock sync.RWMutex
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mainThreadID w32.HANDLE
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mainThreadWindowHWND w32.HWND
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// Windows hidden by application.Hide()
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hiddenWindows []*windowsWebviewWindow
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focusedWindow w32.HWND
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// system theme
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isCurrentlyDarkMode bool
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currentWindowID uint
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}
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func (m *windowsApp) isDarkMode() bool {
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return w32.IsCurrentlyDarkMode()
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}
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func (m *windowsApp) isOnMainThread() bool {
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return m.mainThreadID == w32.GetCurrentThreadId()
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}
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func (m *windowsApp) GetFlags(options Options) map[string]any {
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if options.Flags == nil {
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options.Flags = make(map[string]any)
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}
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options.Flags["system"] = map[string]any{
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"resizeHandleWidth": w32.GetSystemMetrics(w32.SM_CXSIZEFRAME),
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"resizeHandleHeight": w32.GetSystemMetrics(w32.SM_CYSIZEFRAME),
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}
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return options.Flags
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}
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func (m *windowsApp) getWindowForHWND(hwnd w32.HWND) *windowsWebviewWindow {
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m.windowMapLock.RLock()
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defer m.windowMapLock.RUnlock()
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return m.windowMap[hwnd]
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}
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func getNativeApplication() *windowsApp {
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return globalApplication.impl.(*windowsApp)
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}
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func (m *windowsApp) getPrimaryScreen() (*Screen, error) {
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screens, err := m.getScreens()
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if err != nil {
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return nil, err
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}
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for _, screen := range screens {
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if screen.IsPrimary {
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return screen, nil
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}
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}
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return nil, fmt.Errorf("no primary screen found")
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}
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func (m *windowsApp) getScreens() ([]*Screen, error) {
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allScreens, err := w32.GetAllScreens()
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if err != nil {
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return nil, err
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}
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// Convert result to []*Screen
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screens := make([]*Screen, len(allScreens))
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for id, screen := range allScreens {
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x := int(screen.MONITORINFOEX.RcMonitor.Left)
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y := int(screen.MONITORINFOEX.RcMonitor.Top)
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right := int(screen.MONITORINFOEX.RcMonitor.Right)
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bottom := int(screen.MONITORINFOEX.RcMonitor.Bottom)
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width := right - x
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height := bottom - y
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screens[id] = &Screen{
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ID: strconv.Itoa(id),
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Name: windows.UTF16ToString(screen.MONITORINFOEX.SzDevice[:]),
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X: x,
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Y: y,
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Size: Size{Width: width, Height: height},
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Bounds: Rect{X: x, Y: y, Width: width, Height: height},
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WorkArea: Rect{
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X: int(screen.MONITORINFOEX.RcWork.Left),
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Y: int(screen.MONITORINFOEX.RcWork.Top),
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Width: int(screen.MONITORINFOEX.RcWork.Right - screen.MONITORINFOEX.RcWork.Left),
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Height: int(screen.MONITORINFOEX.RcWork.Bottom - screen.MONITORINFOEX.RcWork.Top),
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},
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IsPrimary: screen.IsPrimary,
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Scale: screen.Scale,
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Rotation: 0,
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}
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}
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return screens, nil
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}
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func (m *windowsApp) hide() {
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// Get the current focussed window
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m.focusedWindow = w32.GetForegroundWindow()
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// Iterate over all windows and hide them if they aren't already hidden
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for _, window := range m.windowMap {
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if window.isVisible() {
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// Add to hidden windows
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m.hiddenWindows = append(m.hiddenWindows, window)
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window.hide()
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}
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}
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// Switch focus to the next application
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hwndNext := w32.GetWindow(m.mainThreadWindowHWND, w32.GW_HWNDNEXT)
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w32.SetForegroundWindow(hwndNext)
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}
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func (m *windowsApp) show() {
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// Iterate over all windows and show them if they were previously hidden
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for _, window := range m.hiddenWindows {
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window.show()
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}
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// Show the foreground window
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w32.SetForegroundWindow(m.focusedWindow)
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}
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func (m *windowsApp) on(eventID uint) {
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//C.registerListener(C.uint(eventID))
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}
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func (m *windowsApp) setIcon(icon []byte) {
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//C.setApplicationIcon(unsafe.Pointer(&icon[0]), C.int(len(icon)))
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}
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func (m *windowsApp) name() string {
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//appName := C.getAppName()
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//defer C.free(unsafe.Pointer(appName))
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//return C.GoString(appName)
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return ""
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}
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func (m *windowsApp) getCurrentWindowID() uint {
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return m.currentWindowID
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}
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func (m *windowsApp) setApplicationMenu(menu *Menu) {
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if menu == nil {
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// Create a default menu for windows
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menu = defaultApplicationMenu()
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}
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menu.Update()
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m.parent.ApplicationMenu = menu
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}
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func (m *windowsApp) run() error {
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m.setupCommonEvents()
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for eventID := range m.parent.applicationEventListeners {
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m.on(eventID)
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}
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_ = m.runMainLoop()
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return nil
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}
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func (m *windowsApp) destroy() {
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// Post a quit message to the main thread
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w32.PostQuitMessage(0)
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}
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func (m *windowsApp) init() {
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// Register the window class
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icon := w32.LoadIconWithResourceID(m.instance, w32.IDI_APPLICATION)
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m.windowClass.Size = uint32(unsafe.Sizeof(m.windowClass))
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m.windowClass.Style = w32.CS_HREDRAW | w32.CS_VREDRAW
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m.windowClass.WndProc = syscall.NewCallback(m.wndProc)
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m.windowClass.Instance = m.instance
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m.windowClass.Background = w32.COLOR_BTNFACE + 1
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m.windowClass.Icon = icon
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m.windowClass.Cursor = w32.LoadCursorWithResourceID(0, w32.IDC_ARROW)
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m.windowClass.ClassName = windowClassName
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m.windowClass.MenuName = nil
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m.windowClass.IconSm = icon
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if ret := w32.RegisterClassEx(&m.windowClass); ret == 0 {
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panic(syscall.GetLastError())
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}
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m.isCurrentlyDarkMode = w32.IsCurrentlyDarkMode()
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}
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func (m *windowsApp) wndProc(hwnd w32.HWND, msg uint32, wParam, lParam uintptr) uintptr {
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// Handle the invoke callback
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if msg == wmInvokeCallback {
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m.invokeCallback(wParam, lParam)
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return 0
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}
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// If the WndProcInterceptor is set in options, pass the message on
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if m.parent.options.Windows.WndProcInterceptor != nil {
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returnValue, shouldReturn := m.parent.options.Windows.WndProcInterceptor(hwnd, msg, wParam, lParam)
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if shouldReturn {
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return returnValue
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}
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}
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switch msg {
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case w32.WM_SETTINGCHANGE:
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settingChanged := w32.UTF16PtrToString((*uint16)(unsafe.Pointer(lParam)))
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if settingChanged == "ImmersiveColorSet" {
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isDarkMode := w32.IsCurrentlyDarkMode()
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if isDarkMode != m.isCurrentlyDarkMode {
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eventContext := newApplicationEventContext()
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eventContext.setIsDarkMode(isDarkMode)
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applicationEvents <- &Event{
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Id: uint(events.Windows.SystemThemeChanged),
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ctx: eventContext,
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}
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m.isCurrentlyDarkMode = isDarkMode
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}
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}
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return 0
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case w32.WM_POWERBROADCAST:
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switch wParam {
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case w32.PBT_APMPOWERSTATUSCHANGE:
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applicationEvents <- newApplicationEvent(int(events.Windows.APMPowerStatusChange))
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case w32.PBT_APMSUSPEND:
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applicationEvents <- newApplicationEvent(int(events.Windows.APMSuspend))
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case w32.PBT_APMRESUMEAUTOMATIC:
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applicationEvents <- newApplicationEvent(int(events.Windows.APMResumeAutomatic))
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case w32.PBT_APMRESUMESUSPEND:
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applicationEvents <- newApplicationEvent(int(events.Windows.APMResumeSuspend))
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case w32.PBT_POWERSETTINGCHANGE:
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applicationEvents <- newApplicationEvent(int(events.Windows.APMPowerSettingChange))
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}
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return 0
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}
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if window, ok := m.windowMap[hwnd]; ok {
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return window.WndProc(msg, wParam, lParam)
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}
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m.systrayMapLock.Lock()
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systray, ok := m.systrayMap[hwnd]
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m.systrayMapLock.Unlock()
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if ok {
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return systray.wndProc(msg, wParam, lParam)
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}
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// Dispatch the message to the appropriate window
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return w32.DefWindowProc(hwnd, msg, wParam, lParam)
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}
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func (m *windowsApp) registerWindow(result *windowsWebviewWindow) {
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m.windowMapLock.Lock()
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m.windowMap[result.hwnd] = result
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m.windowMapLock.Unlock()
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}
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func (m *windowsApp) registerSystemTray(result *windowsSystemTray) {
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m.systrayMapLock.Lock()
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defer m.systrayMapLock.Unlock()
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m.systrayMap[result.hwnd] = result
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}
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func (m *windowsApp) unregisterSystemTray(result *windowsSystemTray) {
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m.systrayMapLock.Lock()
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defer m.systrayMapLock.Unlock()
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delete(m.systrayMap, result.hwnd)
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}
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func (m *windowsApp) unregisterWindow(w *windowsWebviewWindow) {
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m.windowMapLock.Lock()
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delete(m.windowMap, w.hwnd)
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m.windowMapLock.Unlock()
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// If this was the last window...
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if len(m.windowMap) == 0 && !m.parent.options.Windows.DisableQuitOnLastWindowClosed {
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w32.PostQuitMessage(0)
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}
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}
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func newPlatformApp(app *App) *windowsApp {
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err := w32.SetProcessDPIAware()
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if err != nil {
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globalApplication.fatal("Fatal error in application initialisation: ", err.Error())
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os.Exit(1)
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}
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result := &windowsApp{
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parent: app,
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instance: w32.GetModuleHandle(""),
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windowMap: make(map[w32.HWND]*windowsWebviewWindow),
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systrayMap: make(map[w32.HWND]*windowsSystemTray),
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}
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result.init()
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result.initMainLoop()
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return result
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}
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func (a *App) logPlatformInfo() {
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var args []any
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args = append(args, "Go-WebView2Loader", webviewloader.UsingGoWebview2Loader)
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webviewVersion, err := webviewloader.GetAvailableCoreWebView2BrowserVersionString(a.options.Windows.WebviewBrowserPath)
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if err != nil {
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args = append(args, "WebView2", "Error: "+err.Error())
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} else {
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args = append(args, "WebView2", webviewVersion)
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}
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osInfo, _ := operatingsystem.Info()
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args = append(args, osInfo.AsLogSlice()...)
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a.info("Platform Info:", args...)
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}
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