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wails/v3/pkg/application/webview_window_linux.go
Lea Anthony 05b16f1d63 Improve Linux application events and refactor app method receivers
This commit includes the addition of common events for the Linux platform. Refactored and standardized the method receivers for the application from 'm' to 'l'. Also, the application startup events in the window example have been updated according to the new naming scheme.
2024-03-06 11:42:19 -06:00

493 lines
12 KiB
Go

//go:build linux
package application
import (
"fmt"
"github.com/wailsapp/wails/v3/internal/assetserver"
"github.com/wailsapp/wails/v3/internal/capabilities"
"github.com/wailsapp/wails/v3/internal/runtime"
"github.com/wailsapp/wails/v3/pkg/events"
)
var showDevTools = func(window pointer) {}
type dragInfo struct {
XRoot int
YRoot int
DragTime uint32
MouseButton uint
}
type linuxWebviewWindow struct {
id uint
application pointer
window pointer
webview pointer
parent *WebviewWindow
menubar pointer
vbox pointer
menu *Menu
accels pointer
lastWidth int
lastHeight int
drag dragInfo
}
var (
registered bool = false // avoid 'already registered message' about 'wails://'
)
func (w *linuxWebviewWindow) startDrag() error {
windowStartDrag(w.window, w.drag.MouseButton, w.drag.XRoot, w.drag.YRoot, w.drag.DragTime)
return nil
}
func (w *linuxWebviewWindow) endDrag(button uint, x, y int) {
w.drag.XRoot = 0.0
w.drag.YRoot = 0.0
w.drag.DragTime = 0
}
func (w *linuxWebviewWindow) enableDND() {
windowEnableDND(w.parent.id, w.webview)
}
func (w *linuxWebviewWindow) connectSignals() {
cb := func(e events.WindowEventType) {
w.parent.emit(e)
}
windowSetupSignalHandlers(w.parent.id, w.window, w.webview, cb)
}
func (w *linuxWebviewWindow) openContextMenu(menu *Menu, data *ContextMenuData) {
// Create the menu manually because we don't want a gtk_menu_bar
// as the top-level item
ctxMenu := &linuxMenu{
menu: menu,
}
if menu.impl == nil {
ctxMenu.update()
}
native := ctxMenu.menu.impl.(*linuxMenu).native
contextMenuShow(w.window, native, data)
}
func (w *linuxWebviewWindow) getZoom() float64 {
return windowZoom(w.webview)
}
func (w *linuxWebviewWindow) setZoom(zoom float64) {
windowZoomSet(w.webview, zoom)
}
func (w *linuxWebviewWindow) setFrameless(frameless bool) {
windowSetFrameless(w.window, frameless)
}
func (w *linuxWebviewWindow) getScreen() (*Screen, error) {
mx, my, width, height, scale := windowGetCurrentMonitorGeometry(w.window)
return &Screen{
ID: fmt.Sprintf("%d", w.id), // A unique identifier for the display
Name: w.parent.Name(), // The name of the display
Scale: float32(scale), // The scale factor of the display
X: mx, // The x-coordinate of the top-left corner of the rectangle
Y: my, // The y-coordinate of the top-left corner of the rectangle
Size: Size{Width: width, Height: height}, // The size of the display
Bounds: Rect{}, // The bounds of the display
WorkArea: Rect{}, // The work area of the display
IsPrimary: false, // Whether this is the primary display
Rotation: 0.0, // The rotation of the display
}, nil
}
func (w *linuxWebviewWindow) focus() {
windowPresent(w.window)
}
func (w *linuxWebviewWindow) show() {
windowShow(w.window)
}
func (w *linuxWebviewWindow) hide() {
windowHide(w.window)
}
func (w *linuxWebviewWindow) isNormal() bool {
return !w.isMinimised() && !w.isMaximised() && !w.isFullscreen()
}
func (w *linuxWebviewWindow) isVisible() bool {
return windowIsVisible(w.window)
}
func (w *linuxWebviewWindow) setFullscreenButtonEnabled(enabled bool) {
// C.setFullscreenButtonEnabled(w.nsWindow, C.bool(enabled))
fmt.Println("setFullscreenButtonEnabled - not implemented")
}
func (w *linuxWebviewWindow) disableSizeConstraints() {
x, y, width, height, scale := windowGetCurrentMonitorGeometry(w.window)
w.setMinMaxSize(x, y, width*scale, height*scale)
}
func (w *linuxWebviewWindow) unfullscreen() {
windowUnfullscreen(w.window)
w.unmaximise()
}
func (w *linuxWebviewWindow) fullscreen() {
w.maximise()
w.lastWidth, w.lastHeight = w.size()
x, y, width, height, scale := windowGetCurrentMonitorGeometry(w.window)
if x == -1 && y == -1 && width == -1 && height == -1 {
return
}
w.setMinMaxSize(0, 0, width*scale, height*scale)
w.setSize(width*scale, height*scale)
windowFullscreen(w.window)
w.setRelativePosition(0, 0)
}
func (w *linuxWebviewWindow) unminimise() {
windowPresent(w.window)
}
func (w *linuxWebviewWindow) unmaximise() {
windowUnmaximize(w.window)
}
func (w *linuxWebviewWindow) maximise() {
windowMaximize(w.window)
}
func (w *linuxWebviewWindow) minimise() {
windowMinimize(w.window)
}
func (w *linuxWebviewWindow) flash(enabled bool) {
// Not supported on linux
}
func (w *linuxWebviewWindow) on(eventID uint) {
// Don't think this is correct!
// GTK Events are strings
fmt.Println("on()", eventID)
//C.registerListener(C.uint(eventID))
}
func (w *linuxWebviewWindow) zoom() {
w.zoomIn()
}
func (w *linuxWebviewWindow) windowZoom() {
w.zoom() // FIXME> This should be removed
}
func (w *linuxWebviewWindow) close() {
windowClose(w.window)
}
func (w *linuxWebviewWindow) zoomIn() {
windowZoomIn(w.webview)
}
func (w *linuxWebviewWindow) zoomOut() {
windowZoomOut(w.webview)
}
func (w *linuxWebviewWindow) zoomReset() {
windowZoomSet(w.webview, 1.0)
}
func (w *linuxWebviewWindow) reload() {
windowReload(w.webview, "wails://")
}
func (w *linuxWebviewWindow) forceReload() {
w.reload()
}
func (w *linuxWebviewWindow) center() {
x, y, width, height, _ := windowGetCurrentMonitorGeometry(w.window)
if x == -1 && y == -1 && width == -1 && height == -1 {
return
}
windowWidth, windowHeight := windowGetSize(w.window)
newX := ((width - int(windowWidth)) / 2) + x
newY := ((height - int(windowHeight)) / 2) + y
// Place the window at the center of the monitor
windowMove(w.window, newX, newY)
}
func (w *linuxWebviewWindow) isMinimised() bool {
return windowIsMinimized(w.window)
}
func (w *linuxWebviewWindow) isMaximised() bool {
return windowIsMaximized(w.window)
}
func (w *linuxWebviewWindow) isFocused() bool {
return windowIsFocused(w.window)
}
func (w *linuxWebviewWindow) isFullscreen() bool {
return windowIsFullscreen(w.window)
}
func (w *linuxWebviewWindow) restore() {
// restore window to normal size
// FIXME: never called! - remove from webviewImpl interface
}
func (w *linuxWebviewWindow) execJS(js string) {
windowExecJS(w.webview, js)
}
func (w *linuxWebviewWindow) setURL(uri string) {
windowSetURL(w.webview, uri)
}
func (w *linuxWebviewWindow) setAlwaysOnTop(alwaysOnTop bool) {
windowSetKeepAbove(w.window, alwaysOnTop)
}
func newWindowImpl(parent *WebviewWindow) *linuxWebviewWindow {
// (*C.struct__GtkWidget)(m.native)
//var menubar *C.struct__GtkWidget
result := &linuxWebviewWindow{
application: getNativeApplication().application,
parent: parent,
// menubar: menubar,
}
return result
}
func (w *linuxWebviewWindow) setTitle(title string) {
if !w.parent.options.Frameless {
windowSetTitle(w.window, title)
}
}
func (w *linuxWebviewWindow) setSize(width, height int) {
windowResize(w.window, width, height)
}
func (w *linuxWebviewWindow) setMinMaxSize(minWidth, minHeight, maxWidth, maxHeight int) {
if minWidth == 0 {
minWidth = -1
}
if minHeight == 0 {
minHeight = -1
}
if maxWidth == 0 {
maxWidth = -1
}
if maxHeight == 0 {
maxHeight = -1
}
windowSetGeometryHints(w.window, minWidth, minHeight, maxWidth, maxHeight)
}
func (w *linuxWebviewWindow) setMinSize(width, height int) {
w.setMinMaxSize(width, height, w.parent.options.MaxWidth, w.parent.options.MaxHeight)
}
func (w *linuxWebviewWindow) setMaxSize(width, height int) {
w.setMinMaxSize(w.parent.options.MinWidth, w.parent.options.MinHeight, width, height)
}
func (w *linuxWebviewWindow) setResizable(resizable bool) {
windowSetResizable(w.window, resizable)
}
func (w *linuxWebviewWindow) showDevTools() {
windowShowDevTools(w.webview)
}
func (w *linuxWebviewWindow) toggleDevTools() {
showDevTools(w.webview)
}
func (w *linuxWebviewWindow) size() (int, int) {
return windowGetSize(w.window)
}
func (w *linuxWebviewWindow) setRelativePosition(x, y int) {
mx, my, _, _, _ := windowGetCurrentMonitorGeometry(w.window)
windowMove(w.window, x+mx, y+my)
}
func (w *linuxWebviewWindow) width() int {
width, _ := w.size()
return width
}
func (w *linuxWebviewWindow) height() int {
_, height := w.size()
return height
}
func (w *linuxWebviewWindow) setAbsolutePosition(x int, y int) {
// Set the window's absolute position
windowMove(w.window, x, y)
}
func (w *linuxWebviewWindow) absolutePosition() (int, int) {
var x, y int
x, y = windowGetAbsolutePosition(w.window)
return x, y
}
func (w *linuxWebviewWindow) run() {
for eventId := range w.parent.eventListeners {
w.on(eventId)
}
// Register the capabilities
globalApplication.capabilities = capabilities.NewCapabilities()
app := getNativeApplication()
menu := app.getApplicationMenu()
w.window, w.webview, w.vbox = windowNew(app.application, menu, w.parent.id, 1)
app.registerWindow(w.window, w.parent.id) // record our mapping
w.connectSignals()
if w.parent.options.EnableDragAndDrop {
w.enableDND()
}
w.setTitle(w.parent.options.Title)
w.setAlwaysOnTop(w.parent.options.AlwaysOnTop)
w.setResizable(!w.parent.options.DisableResize)
// only set min/max size if actually set
if w.parent.options.MinWidth != 0 &&
w.parent.options.MinHeight != 0 &&
w.parent.options.MaxWidth != 0 &&
w.parent.options.MaxHeight != 0 {
w.setMinMaxSize(
w.parent.options.MinWidth,
w.parent.options.MinHeight,
w.parent.options.MaxWidth,
w.parent.options.MaxHeight,
)
}
w.setSize(w.parent.options.Width, w.parent.options.Height)
w.setZoom(w.parent.options.Zoom)
if w.parent.options.BackgroundType != BackgroundTypeSolid {
w.setTransparent()
w.setBackgroundColour(w.parent.options.BackgroundColour)
}
w.setFrameless(w.parent.options.Frameless)
if w.parent.options.X != 0 || w.parent.options.Y != 0 {
w.setRelativePosition(w.parent.options.X, w.parent.options.Y)
} else {
fmt.Println("attempting to set in the center")
w.center()
}
switch w.parent.options.StartState {
case WindowStateMaximised:
w.maximise()
case WindowStateMinimised:
w.minimise()
case WindowStateFullscreen:
w.fullscreen()
case WindowStateNormal:
}
startURL, err := assetserver.GetStartURL(w.parent.options.URL)
if err != nil {
globalApplication.fatal(err.Error())
}
w.setURL(startURL)
w.parent.On(events.Linux.WindowLoadChanged, func(_ *WindowEvent) {
if w.parent.options.JS != "" {
w.execJS(w.parent.options.JS)
}
if w.parent.options.CSS != "" {
js := fmt.Sprintf("(function() { var style = document.createElement('style'); style.appendChild(document.createTextNode('%s')); document.head.appendChild(style); })();", w.parent.options.CSS)
w.execJS(js)
}
})
w.parent.On(events.Linux.WindowDeleteEvent, func(e *WindowEvent) {
w.parent.emit(events.Common.WindowClosing)
})
w.parent.RegisterHook(events.Linux.WindowLoadChanged, func(e *WindowEvent) {
w.execJS(runtime.Core())
})
if w.parent.options.HTML != "" {
w.setHTML(w.parent.options.HTML)
}
if !w.parent.options.Hidden {
w.show()
if w.parent.options.X != 0 || w.parent.options.Y != 0 {
w.setRelativePosition(w.parent.options.X, w.parent.options.Y)
} else {
w.center() // needs to be queued until after GTK starts up!
}
}
if w.parent.options.DevToolsEnabled || globalApplication.isDebugMode {
w.toggleDevTools()
if w.parent.options.OpenInspectorOnStartup {
w.showDevTools()
}
}
}
func (w *linuxWebviewWindow) setTransparent() {
windowSetTransparent(w.window)
}
func (w *linuxWebviewWindow) setBackgroundColour(colour RGBA) {
windowSetBackgroundColour(w.vbox, w.webview, colour)
}
func (w *linuxWebviewWindow) relativePosition() (int, int) {
var x, y int
x, y = windowGetRelativePosition(w.window)
return x, y
}
func (w *linuxWebviewWindow) destroy() {
w.parent.markAsDestroyed()
windowDestroy(w.window)
}
func (w *linuxWebviewWindow) setEnabled(enabled bool) {
widgetSetSensitive(w.window, enabled)
}
func (w *linuxWebviewWindow) setHTML(html string) {
windowSetHTML(w.webview, html)
}
func (w *linuxWebviewWindow) startResize(border string) error {
// FIXME: what do we need to do here?
return nil
}
func (w *linuxWebviewWindow) nativeWindowHandle() uintptr {
return uintptr(w.window)
}
func (w *linuxWebviewWindow) print() error {
w.execJS("window.print();")
return nil
}
func (w *linuxWebviewWindow) handleKeyEvent(acceleratorString string) {
// Parse acceleratorString
// accelerator, err := parseAccelerator(acceleratorString)
// if err != nil {
// globalApplication.error("unable to parse accelerator: %s", err.Error())
// return
// }
w.parent.processKeyBinding(acceleratorString)
}