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 uintptr textCtl uintptr editCtl uintptr okBtn uintptr cancelBtn uintptr extraBtn uintptr font font } func (dlg *entryDialog) setup(text string, opts options) (string, error) { defer setup()() 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 := getModuleHandle.Call(0) if instance == 0 { return "", err } cls, err := registerClass(instance, icon.handle, syscall.NewCallback(entryProc)) if cls == 0 { return "", err } defer unregisterClass.Call(cls, instance) owner, _ := opts.attach.(win.HWND) dlg.wnd, _, _ = createWindowEx.Call(_WS_EX_CONTROLPARENT|_WS_EX_WINDOWEDGE|_WS_EX_DLGMODALFRAME, cls, strptr(*opts.title), _WS_POPUPWINDOW|_WS_CLIPSIBLINGS|_WS_DLGFRAME, _CW_USEDEFAULT, _CW_USEDEFAULT, 281, 141, uintptr(owner), 0, instance, uintptr(unsafe.Pointer(dlg))) dlg.textCtl, _, _ = createWindowEx.Call(0, strptr("STATIC"), strptr(text), _WS_CHILD|_WS_VISIBLE|_WS_GROUP|_SS_WORDELLIPSIS|_SS_EDITCONTROL|_SS_NOPREFIX, 12, 10, 241, 16, dlg.wnd, 0, instance, 0) var flags uintptr = _WS_CHILD | _WS_VISIBLE | _WS_GROUP | _WS_TABSTOP | _ES_AUTOHSCROLL if opts.hideText { flags |= _ES_PASSWORD } dlg.editCtl, _, _ = createWindowEx.Call(_WS_EX_CLIENTEDGE, strptr("EDIT"), strptr(opts.entryText), flags, 12, 30, 241, 24, dlg.wnd, 0, instance, 0) dlg.okBtn, _, _ = createWindowEx.Call(0, strptr("BUTTON"), strptr(*opts.okLabel), _WS_CHILD|_WS_VISIBLE|_WS_GROUP|_WS_TABSTOP|_BS_DEFPUSHBUTTON, 12, 66, 75, 24, dlg.wnd, win.IDOK, instance, 0) dlg.cancelBtn, _, _ = createWindowEx.Call(0, strptr("BUTTON"), strptr(*opts.cancelLabel), _WS_CHILD|_WS_VISIBLE|_WS_GROUP|_WS_TABSTOP, 12, 66, 75, 24, dlg.wnd, win.IDCANCEL, instance, 0) if opts.extraButton != nil { dlg.extraBtn, _, _ = createWindowEx.Call(0, strptr("BUTTON"), strptr(*opts.extraButton), _WS_CHILD|_WS_VISIBLE|_WS_GROUP|_WS_TABSTOP, 12, 66, 75, 24, dlg.wnd, win.IDNO, instance, 0) } dlg.layout(getDPI(dlg.wnd)) centerWindow(dlg.wnd) setFocus.Call(dlg.editCtl) showWindow.Call(dlg.wnd, _SW_NORMAL, 0) sendMessage.Call(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(): sendMessage.Call(dlg.wnd, win.WM_SYSCOMMAND, _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) sendMessage.Call(dlg.textCtl, win.WM_SETFONT, font, 1) sendMessage.Call(dlg.editCtl, win.WM_SETFONT, font, 1) sendMessage.Call(dlg.okBtn, win.WM_SETFONT, font, 1) sendMessage.Call(dlg.cancelBtn, win.WM_SETFONT, font, 1) sendMessage.Call(dlg.extraBtn, win.WM_SETFONT, font, 1) setWindowPos.Call(dlg.wnd, 0, 0, 0, dpi.scale(281), dpi.scale(141), _SWP_NOZORDER|_SWP_NOMOVE) setWindowPos.Call(dlg.textCtl, 0, dpi.scale(12), dpi.scale(10), dpi.scale(241), dpi.scale(16), _SWP_NOZORDER) setWindowPos.Call(dlg.editCtl, 0, dpi.scale(12), dpi.scale(30), dpi.scale(241), dpi.scale(24), _SWP_NOZORDER) if dlg.extraBtn == 0 { setWindowPos.Call(dlg.okBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), _SWP_NOZORDER) setWindowPos.Call(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), _SWP_NOZORDER) } else { setWindowPos.Call(dlg.okBtn, 0, dpi.scale(12), dpi.scale(66), dpi.scale(75), dpi.scale(24), _SWP_NOZORDER) setWindowPos.Call(dlg.extraBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), _SWP_NOZORDER) setWindowPos.Call(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), _SWP_NOZORDER) } } func entryProc(wnd uintptr, msg uint32, wparam uintptr, lparam *unsafe.Pointer) uintptr { var dlg *entryDialog switch msg { case win.WM_NCCREATE: saveBackRef(wnd, *lparam) dlg = (*entryDialog)(*lparam) case win.WM_NCDESTROY: deleteBackRef(wnd) default: dlg = (*entryDialog)(loadBackRef(wnd)) } switch msg { case win.WM_DESTROY: postQuitMessage.Call(0) case win.WM_CLOSE: dlg.err = ErrCanceled destroyWindow.Call(wnd) case win.WM_COMMAND: switch wparam { default: return 1 case win.IDOK, win.IDYES: dlg.out = getWindowString(dlg.editCtl) case win.IDCANCEL: dlg.err = ErrCanceled case win.IDNO: dlg.err = ErrExtraButton } destroyWindow.Call(wnd) case win.WM_DPICHANGED: dlg.layout(dpi(uint32(wparam) >> 16)) default: res, _, _ := defWindowProc.Call(wnd, uintptr(msg), wparam, uintptr(unsafe.Pointer(lparam))) return res } return 0 }