mirror of
https://git.sr.ht/~eliasnaur/gio
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Elias Naur
3879921b80
All platforms already allow the omission of the call to Main and running Windows on the main goroutine. This change just gets rid of Main, and documents the special requirement on Window.Event. Signed-off-by: Elias Naur <mail@eliasnaur.com>
114 lines
3.4 KiB
Go
114 lines
3.4 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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//go:build (linux && !android) || freebsd || openbsd
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// +build linux,!android freebsd openbsd
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package app
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import (
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"errors"
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"unsafe"
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"gioui.org/io/event"
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"gioui.org/io/pointer"
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)
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type X11ViewEvent struct {
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// Display is a pointer to the X11 Display created by XOpenDisplay.
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Display unsafe.Pointer
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// Window is the X11 window ID as returned by XCreateWindow.
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Window uintptr
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}
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func (X11ViewEvent) implementsViewEvent() {}
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func (X11ViewEvent) ImplementsEvent() {}
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type WaylandViewEvent struct {
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// Display is the *wl_display returned by wl_display_connect.
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Display unsafe.Pointer
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// Surface is the *wl_surface returned by wl_compositor_create_surface.
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Surface unsafe.Pointer
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}
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func (WaylandViewEvent) implementsViewEvent() {}
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func (WaylandViewEvent) ImplementsEvent() {}
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type windowDriver func(*callbacks, []Option) error
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// Instead of creating files with build tags for each combination of wayland +/- x11
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// let each driver initialize these variables with their own version of createWindow.
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var wlDriver, x11Driver windowDriver
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func newWindow(window *callbacks, options []Option) {
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var errFirst error
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for _, d := range []windowDriver{wlDriver, x11Driver} {
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if d == nil {
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continue
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}
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err := d(window, options)
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if err == nil {
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return
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}
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if errFirst == nil {
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errFirst = err
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}
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}
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window.SetDriver(&dummyDriver{
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win: window,
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wakeups: make(chan event.Event, 1),
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})
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if errFirst == nil {
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errFirst = errors.New("app: no window driver available")
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}
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window.ProcessEvent(DestroyEvent{Err: errFirst})
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}
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type dummyDriver struct {
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win *callbacks
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wakeups chan event.Event
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}
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func (d *dummyDriver) Event() event.Event {
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if e, ok := d.win.nextEvent(); ok {
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return e
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}
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return <-d.wakeups
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}
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func (d *dummyDriver) Invalidate() {
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select {
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case d.wakeups <- wakeupEvent{}:
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default:
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}
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}
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// xCursor contains mapping from pointer.Cursor to XCursor.
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var xCursor = [...]string{
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pointer.CursorDefault: "left_ptr",
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pointer.CursorNone: "",
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pointer.CursorText: "xterm",
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pointer.CursorVerticalText: "vertical-text",
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pointer.CursorPointer: "hand2",
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pointer.CursorCrosshair: "crosshair",
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pointer.CursorAllScroll: "fleur",
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pointer.CursorColResize: "sb_h_double_arrow",
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pointer.CursorRowResize: "sb_v_double_arrow",
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pointer.CursorGrab: "hand1",
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pointer.CursorGrabbing: "move",
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pointer.CursorNotAllowed: "crossed_circle",
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pointer.CursorWait: "watch",
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pointer.CursorProgress: "left_ptr_watch",
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pointer.CursorNorthWestResize: "top_left_corner",
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pointer.CursorNorthEastResize: "top_right_corner",
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pointer.CursorSouthWestResize: "bottom_left_corner",
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pointer.CursorSouthEastResize: "bottom_right_corner",
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pointer.CursorNorthSouthResize: "sb_v_double_arrow",
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pointer.CursorEastWestResize: "sb_h_double_arrow",
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pointer.CursorWestResize: "left_side",
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pointer.CursorEastResize: "right_side",
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pointer.CursorNorthResize: "top_side",
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pointer.CursorSouthResize: "bottom_side",
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pointer.CursorNorthEastSouthWestResize: "fd_double_arrow",
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pointer.CursorNorthWestSouthEastResize: "bd_double_arrow",
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}
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