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https://github.com/wailsapp/wails.git
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419 lines
11 KiB
Go
419 lines
11 KiB
Go
//go:build linux
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package application
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import (
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"fmt"
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"time"
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"github.com/bep/debounce"
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"github.com/wailsapp/wails/v3/internal/assetserver"
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"github.com/wailsapp/wails/v3/internal/capabilities"
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"github.com/wailsapp/wails/v3/internal/runtime"
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"github.com/wailsapp/wails/v3/pkg/events"
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)
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type dragInfo struct {
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XRoot int
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YRoot int
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DragTime uint32
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MouseButton uint
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}
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type linuxWebviewWindow struct {
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id uint
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application pointer
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window pointer
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webview pointer
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parent *WebviewWindow
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menubar pointer
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vbox pointer
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accels pointer
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lastWidth int
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lastHeight int
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drag dragInfo
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lastX, lastY int
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gtkmenu pointer
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ctxMenuOpened bool
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moveDebouncer func(func())
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resizeDebouncer func(func())
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ignoreMouseEvents bool
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}
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var (
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registered bool = false // avoid 'already registered message' about 'wails://'
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)
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func (w *linuxWebviewWindow) endDrag(button uint, x, y int) {
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w.drag.XRoot = 0.0
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w.drag.YRoot = 0.0
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w.drag.DragTime = 0
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}
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func (w *linuxWebviewWindow) connectSignals() {
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cb := func(e events.WindowEventType) {
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w.parent.emit(e)
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}
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w.setupSignalHandlers(cb)
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}
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func (w *linuxWebviewWindow) openContextMenu(menu *Menu, data *ContextMenuData) {
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// Create the menu manually because we don't want a gtk_menu_bar
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// as the top-level item
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ctxMenu := &linuxMenu{
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menu: menu,
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}
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if menu.impl == nil {
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ctxMenu.update()
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native := ctxMenu.menu.impl.(*linuxMenu).native
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w.contextMenuSignals(native)
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}
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native := ctxMenu.menu.impl.(*linuxMenu).native
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w.contextMenuShow(native, data)
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}
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func (w *linuxWebviewWindow) focus() {
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w.present()
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}
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func (w *linuxWebviewWindow) isNormal() bool {
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return !w.isMinimised() && !w.isMaximised() && !w.isFullscreen()
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}
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func (w *linuxWebviewWindow) setCloseButtonEnabled(enabled bool) {
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// C.enableCloseButton(w.nsWindow, C.bool(enabled))
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}
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func (w *linuxWebviewWindow) setFullscreenButtonEnabled(enabled bool) {
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// Not implemented
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}
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func (w *linuxWebviewWindow) setMinimiseButtonEnabled(enabled bool) {
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//C.enableMinimiseButton(w.nsWindow, C.bool(enabled))
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}
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func (w *linuxWebviewWindow) setMaximiseButtonEnabled(enabled bool) {
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//C.enableMaximiseButton(w.nsWindow, C.bool(enabled))
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}
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func (w *linuxWebviewWindow) disableSizeConstraints() {
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x, y, width, height, scaleFactor := w.getCurrentMonitorGeometry()
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w.setMinMaxSize(x, y, width*scaleFactor, height*scaleFactor)
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}
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func (w *linuxWebviewWindow) unminimise() {
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w.present()
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}
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func (w *linuxWebviewWindow) on(eventID uint) {
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// TODO: Test register/unregister listener for linux events
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//C.registerListener(C.uint(eventID))
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}
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func (w *linuxWebviewWindow) zoom() {
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w.zoomIn()
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}
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func (w *linuxWebviewWindow) windowZoom() {
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w.zoom() // FIXME> This should be removed
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}
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func (w *linuxWebviewWindow) forceReload() {
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w.reload()
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}
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func (w *linuxWebviewWindow) center() {
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x, y, width, height, _ := w.getCurrentMonitorGeometry()
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if x == -1 && y == -1 && width == -1 && height == -1 {
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return
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}
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windowWidth, windowHeight := w.size()
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newX := ((width - windowWidth) / 2) + x
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newY := ((height - windowHeight) / 2) + y
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// Place the window at the center of the monitor
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w.move(newX, newY)
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}
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func (w *linuxWebviewWindow) restore() {
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// restore window to normal size
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// FIXME: never called! - remove from webviewImpl interface
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}
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func newWindowImpl(parent *WebviewWindow) *linuxWebviewWindow {
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// (*C.struct__GtkWidget)(m.native)
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//var menubar *C.struct__GtkWidget
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result := &linuxWebviewWindow{
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application: getNativeApplication().application,
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parent: parent,
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// menubar: menubar,
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}
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return result
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}
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func (w *linuxWebviewWindow) setMinMaxSize(minWidth, minHeight, maxWidth, maxHeight int) {
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// Get current screen for window
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_, _, monitorwidth, monitorheight, _ := w.getCurrentMonitorGeometry()
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if monitorwidth == -1 {
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monitorwidth = 1920
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}
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if monitorheight == -1 {
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monitorheight = 1080
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}
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if maxWidth == 0 {
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maxWidth = monitorwidth
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}
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if maxHeight == 0 {
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maxHeight = monitorheight
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}
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windowSetGeometryHints(w.window, minWidth, minHeight, maxWidth, maxHeight)
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}
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func (w *linuxWebviewWindow) setMinSize(width, height int) {
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w.setMinMaxSize(width, height, w.parent.options.MaxWidth, w.parent.options.MaxHeight)
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}
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func (w *linuxWebviewWindow) getBorderSizes() *LRTB {
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return &LRTB{}
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}
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func (w *linuxWebviewWindow) setMaxSize(width, height int) {
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w.setMinMaxSize(w.parent.options.MinWidth, w.parent.options.MinHeight, width, height)
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}
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func (w *linuxWebviewWindow) setRelativePosition(x, y int) {
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mx, my, _, _, _ := w.getCurrentMonitorGeometry()
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w.move(x+mx, y+my)
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}
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func (w *linuxWebviewWindow) width() int {
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width, _ := w.size()
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return width
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}
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func (w *linuxWebviewWindow) height() int {
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_, height := w.size()
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return height
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}
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func (w *linuxWebviewWindow) setPosition(x int, y int) {
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// Set the window's absolute position
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w.move(x, y)
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}
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func (w *linuxWebviewWindow) bounds() Rect {
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// DOTO: do it in a single step + proper DPI scaling
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x, y := w.position()
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width, height := w.size()
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return Rect{
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X: x,
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Y: y,
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Width: width,
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Height: height,
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}
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}
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func (w *linuxWebviewWindow) setBounds(bounds Rect) {
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// DOTO: do it in a single step + proper DPI scaling
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w.move(bounds.X, bounds.Y)
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w.setSize(bounds.Width, bounds.Height)
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}
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func (w *linuxWebviewWindow) physicalBounds() Rect {
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// TODO: proper DPI scaling
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return w.bounds()
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}
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func (w *linuxWebviewWindow) setPhysicalBounds(physicalBounds Rect) {
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// TODO: proper DPI scaling
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w.setBounds(physicalBounds)
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}
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func (w *linuxWebviewWindow) setMenu(menu *Menu) {
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if menu == nil {
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w.gtkmenu = nil
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return
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}
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w.parent.options.Linux.Menu = menu
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w.gtkmenu = (menu.impl).(*linuxMenu).native
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}
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func (w *linuxWebviewWindow) run() {
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for eventId := range w.parent.eventListeners {
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w.on(eventId)
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}
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if w.moveDebouncer == nil {
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debounceMS := w.parent.options.Linux.WindowDidMoveDebounceMS
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if debounceMS == 0 {
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debounceMS = 50 // Default value
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}
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w.moveDebouncer = debounce.New(time.Duration(debounceMS) * time.Millisecond)
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}
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if w.resizeDebouncer == nil {
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debounceMS := w.parent.options.Linux.WindowDidMoveDebounceMS
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if debounceMS == 0 {
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debounceMS = 50 // Default value
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}
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w.resizeDebouncer = debounce.New(time.Duration(debounceMS) * time.Millisecond)
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}
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// Register the capabilities
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globalApplication.capabilities = capabilities.NewCapabilities()
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app := getNativeApplication()
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var menu = w.parent.options.Linux.Menu
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if menu != nil {
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InvokeSync(func() {
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menu.Update()
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})
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w.gtkmenu = (menu.impl).(*linuxMenu).native
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}
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w.window, w.webview, w.vbox = windowNew(app.application, w.gtkmenu, w.parent.id, w.parent.options.Linux.WebviewGpuPolicy)
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app.registerWindow(w.window, w.parent.id) // record our mapping
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w.connectSignals()
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if w.parent.options.EnableDragAndDrop {
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w.enableDND()
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}
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w.setTitle(w.parent.options.Title)
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w.setIcon(app.icon)
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w.setAlwaysOnTop(w.parent.options.AlwaysOnTop)
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w.setResizable(!w.parent.options.DisableResize)
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// Set min/max size with defaults
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// Default min: 1x1 (smallest possible)
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// Default max: 0x0 (uses screen size)
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minWidth := w.parent.options.MinWidth
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if minWidth == 0 {
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minWidth = 1
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}
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minHeight := w.parent.options.MinHeight
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if minHeight == 0 {
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minHeight = 1
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}
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maxWidth := w.parent.options.MaxWidth
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maxHeight := w.parent.options.MaxHeight
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w.setMinMaxSize(minWidth, minHeight, maxWidth, maxHeight)
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w.setDefaultSize(w.parent.options.Width, w.parent.options.Height)
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w.setSize(w.parent.options.Width, w.parent.options.Height)
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w.setZoom(w.parent.options.Zoom)
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if w.parent.options.BackgroundType != BackgroundTypeSolid {
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w.setTransparent()
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w.setBackgroundColour(w.parent.options.BackgroundColour)
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}
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w.setFrameless(w.parent.options.Frameless)
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if w.parent.options.InitialPosition == WindowCentered {
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w.center()
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} else {
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w.setPosition(w.parent.options.X, w.parent.options.Y)
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}
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switch w.parent.options.StartState {
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case WindowStateMaximised:
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w.maximise()
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case WindowStateMinimised:
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w.minimise()
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case WindowStateFullscreen:
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w.fullscreen()
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case WindowStateNormal:
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}
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// Ignore mouse events if requested
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w.setIgnoreMouseEvents(w.parent.options.IgnoreMouseEvents)
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startURL, err := assetserver.GetStartURL(w.parent.options.URL)
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if err != nil {
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globalApplication.handleFatalError(err)
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}
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w.setURL(startURL)
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w.parent.OnWindowEvent(events.Linux.WindowLoadChanged, func(_ *WindowEvent) {
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InvokeAsync(func() {
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if w.parent.options.JS != "" {
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w.execJS(w.parent.options.JS)
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}
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if w.parent.options.CSS != "" {
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js := fmt.Sprintf("(function() { var style = document.createElement('style'); style.appendChild(document.createTextNode('%s')); document.head.appendChild(style); })();", w.parent.options.CSS)
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w.execJS(js)
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}
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})
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})
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w.parent.RegisterHook(events.Linux.WindowLoadChanged, func(e *WindowEvent) {
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w.execJS(runtime.Core())
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})
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if w.parent.options.HTML != "" {
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w.setHTML(w.parent.options.HTML)
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}
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if !w.parent.options.Hidden {
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w.show()
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if w.parent.options.InitialPosition == WindowCentered {
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w.center()
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} else {
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w.setRelativePosition(w.parent.options.X, w.parent.options.Y)
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}
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}
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if w.parent.options.DevToolsEnabled || globalApplication.isDebugMode {
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w.enableDevTools()
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if w.parent.options.OpenInspectorOnStartup {
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w.openDevTools()
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}
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}
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}
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func (w *linuxWebviewWindow) startResize(border string) error {
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// FIXME: what do we need to do here?
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return nil
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}
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func (w *linuxWebviewWindow) nativeWindowHandle() uintptr {
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return uintptr(w.window)
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}
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func (w *linuxWebviewWindow) print() error {
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w.execJS("window.print();")
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return nil
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}
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func (w *linuxWebviewWindow) handleKeyEvent(acceleratorString string) {
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// Parse acceleratorString
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// accelerator, err := parseAccelerator(acceleratorString)
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// if err != nil {
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// globalApplication.error("unable to parse accelerator: %w", err)
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// return
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// }
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w.parent.processKeyBinding(acceleratorString)
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}
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// SetMinimiseButtonState is unsupported on Linux
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func (w *linuxWebviewWindow) setMinimiseButtonState(state ButtonState) {}
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// SetMaximiseButtonState is unsupported on Linux
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func (w *linuxWebviewWindow) setMaximiseButtonState(state ButtonState) {}
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// SetCloseButtonState is unsupported on Linux
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func (w *linuxWebviewWindow) setCloseButtonState(state ButtonState) {}
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func (w *linuxWebviewWindow) isIgnoreMouseEvents() bool {
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return w.ignoreMouseEvents
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}
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func (w *linuxWebviewWindow) setIgnoreMouseEvents(ignore bool) {
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w.ignoreMouse(w.ignoreMouseEvents)
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}
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func (w *linuxWebviewWindow) showMenuBar() {}
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func (w *linuxWebviewWindow) hideMenuBar() {}
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func (w *linuxWebviewWindow) toggleMenuBar() {}
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func (w *linuxWebviewWindow) setContentProtection(enabled bool) {}
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