package zenity import ( "syscall" "unsafe" "github.com/ncruces/zenity/internal/win" ) func entry(text string, opts options) (string, error) { if opts.title == nil { opts.title = stringPtr("") } if opts.okLabel == nil { opts.okLabel = stringPtr("OK") } if opts.cancelLabel == nil { opts.cancelLabel = stringPtr("Cancel") } dlg := &entryDialog{} return dlg.setup(text, opts) } type entryDialog struct { out string err error wnd win.HWND textCtl win.HWND editCtl win.HWND okBtn win.HWND cancelBtn win.HWND extraBtn win.HWND font font } func (dlg *entryDialog) setup(text string, opts options) (string, error) { owner, _ := opts.attach.(win.HWND) defer setup(owner)() dlg.font = getFont() defer dlg.font.delete() icon, _ := getIcon(opts.windowIcon) defer icon.delete() if opts.ctx != nil && opts.ctx.Err() != nil { return "", opts.ctx.Err() } instance, err := win.GetModuleHandle(nil) if err != nil { return "", err } cls, err := registerClass(instance, icon.handle, syscall.NewCallback(entryProc)) if err != nil { return "", err } defer win.UnregisterClass(cls, instance) dlg.wnd, _ = win.CreateWindowEx(_WS_EX_ZEN_DIALOG, cls, strptr(*opts.title), _WS_ZEN_DIALOG, win.CW_USEDEFAULT, win.CW_USEDEFAULT, 281, 141, owner, 0, instance, unsafe.Pointer(dlg)) dlg.textCtl, _ = win.CreateWindowEx(0, strptr("STATIC"), strptr(text), _WS_ZEN_LABEL, 12, 10, 241, 16, dlg.wnd, 0, instance, nil) var flags uint32 = _WS_ZEN_CONTROL | win.ES_AUTOHSCROLL if opts.hideText { flags |= win.ES_PASSWORD } dlg.editCtl, _ = win.CreateWindowEx(win.WS_EX_CLIENTEDGE, strptr("EDIT"), strptr(opts.entryText), flags, 12, 30, 241, 24, dlg.wnd, 0, instance, nil) dlg.okBtn, _ = win.CreateWindowEx(0, strptr("BUTTON"), strptr(*opts.okLabel), _WS_ZEN_BUTTON|win.BS_DEFPUSHBUTTON, 12, 66, 75, 24, dlg.wnd, win.IDOK, instance, nil) dlg.cancelBtn, _ = win.CreateWindowEx(0, strptr("BUTTON"), strptr(*opts.cancelLabel), _WS_ZEN_BUTTON, 12, 66, 75, 24, dlg.wnd, win.IDCANCEL, instance, nil) if opts.extraButton != nil { dlg.extraBtn, _ = win.CreateWindowEx(0, strptr("BUTTON"), strptr(*opts.extraButton), _WS_ZEN_BUTTON, 12, 66, 75, 24, dlg.wnd, win.IDNO, instance, nil) } dlg.layout(getDPI(dlg.wnd)) centerWindow(dlg.wnd) win.SetFocus(dlg.editCtl) win.ShowWindow(dlg.wnd, win.SW_NORMAL) win.SendMessage(dlg.editCtl, win.EM_SETSEL, 0, intptr(-1)) if opts.ctx != nil { wait := make(chan struct{}) defer close(wait) go func() { select { case <-opts.ctx.Done(): win.SendMessage(dlg.wnd, win.WM_SYSCOMMAND, win.SC_CLOSE, 0) case <-wait: } }() } if err := win.MessageLoop(win.HWND(dlg.wnd)); err != nil { return "", err } if opts.ctx != nil && opts.ctx.Err() != nil { return "", opts.ctx.Err() } return dlg.out, dlg.err } func (dlg *entryDialog) layout(dpi dpi) { font := dlg.font.forDPI(dpi) win.SendMessage(dlg.textCtl, win.WM_SETFONT, font, 1) win.SendMessage(dlg.editCtl, win.WM_SETFONT, font, 1) win.SendMessage(dlg.okBtn, win.WM_SETFONT, font, 1) win.SendMessage(dlg.cancelBtn, win.WM_SETFONT, font, 1) win.SendMessage(dlg.extraBtn, win.WM_SETFONT, font, 1) win.SetWindowPos(dlg.wnd, 0, 0, 0, dpi.scale(281), dpi.scale(141), win.SWP_NOMOVE|win.SWP_NOZORDER) win.SetWindowPos(dlg.textCtl, 0, dpi.scale(12), dpi.scale(10), dpi.scale(241), dpi.scale(16), win.SWP_NOZORDER) win.SetWindowPos(dlg.editCtl, 0, dpi.scale(12), dpi.scale(30), dpi.scale(241), dpi.scale(24), win.SWP_NOZORDER) if dlg.extraBtn == 0 { win.SetWindowPos(dlg.okBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), win.SWP_NOZORDER) win.SetWindowPos(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), win.SWP_NOZORDER) } else { win.SetWindowPos(dlg.okBtn, 0, dpi.scale(12), dpi.scale(66), dpi.scale(75), dpi.scale(24), win.SWP_NOZORDER) win.SetWindowPos(dlg.extraBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), win.SWP_NOZORDER) win.SetWindowPos(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), win.SWP_NOZORDER) } } func entryProc(wnd win.HWND, msg uint32, wparam uintptr, lparam *unsafe.Pointer) uintptr { var dlg *entryDialog switch msg { case win.WM_NCCREATE: saveBackRef(uintptr(wnd), *lparam) dlg = (*entryDialog)(*lparam) case win.WM_NCDESTROY: deleteBackRef(uintptr(wnd)) default: dlg = (*entryDialog)(loadBackRef(uintptr(wnd))) } switch msg { case win.WM_DESTROY: win.PostQuitMessage(0) case win.WM_CLOSE: dlg.err = ErrCanceled win.DestroyWindow(wnd) case win.WM_COMMAND: switch wparam { default: return 1 case win.IDOK, win.IDYES: dlg.out = win.GetWindowText(dlg.editCtl) case win.IDCANCEL: dlg.err = ErrCanceled case win.IDNO: dlg.err = ErrExtraButton } win.DestroyWindow(wnd) case win.WM_DPICHANGED: dlg.layout(dpi(uint32(wparam) >> 16)) default: return win.DefWindowProc(wnd, msg, wparam, unsafe.Pointer(lparam)) } return 0 }