2021-03-07 19:57:16 -05:00
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package zenity
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2018-01-25 10:37:06 -05:00
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import (
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"syscall"
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"unsafe"
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2018-01-25 10:37:06 -05:00
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)
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2022-03-23 09:59:00 -04:00
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func entry(text string, opts options) (string, error) {
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if opts.title == nil {
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opts.title = stringPtr("")
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}
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if opts.okLabel == nil {
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opts.okLabel = stringPtr("OK")
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}
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if opts.cancelLabel == nil {
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opts.cancelLabel = stringPtr("Cancel")
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}
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2021-03-29 14:07:44 -04:00
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2022-03-24 08:51:28 -04:00
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dlg := &entryDialog{}
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return dlg.setup(text, opts)
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}
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type entryDialog struct {
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out string
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err error
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wnd uintptr
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textCtl uintptr
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editCtl uintptr
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okBtn uintptr
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cancelBtn uintptr
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extraBtn uintptr
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font font
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}
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func (dlg *entryDialog) setup(text string, opts options) (string, error) {
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defer setup()()
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dlg.font = getFont()
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defer dlg.font.delete()
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if opts.ctx != nil && opts.ctx.Err() != nil {
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return "", opts.ctx.Err()
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}
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2021-03-27 19:50:48 -04:00
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instance, _, err := getModuleHandle.Call(0)
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if instance == 0 {
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return "", err
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}
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cls, err := registerClass(instance, syscall.NewCallback(entryProc))
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if cls == 0 {
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return "", err
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}
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defer unregisterClass.Call(cls, instance)
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dlg.wnd, _, _ = createWindowEx.Call(0x10101, // WS_EX_CONTROLPARENT|WS_EX_WINDOWEDGE|WS_EX_DLGMODALFRAME
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cls, strptr(*opts.title),
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0x84c80000, // WS_POPUPWINDOW|WS_CLIPSIBLINGS|WS_DLGFRAME
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0x80000000, // CW_USEDEFAULT
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0x80000000, // CW_USEDEFAULT
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281, 141, 0, 0, instance, uintptr(unsafe.Pointer(dlg)))
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dlg.textCtl, _, _ = createWindowEx.Call(0,
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strptr("STATIC"), strptr(text),
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0x5002e080, // WS_CHILD|WS_VISIBLE|WS_GROUP|SS_WORDELLIPSIS|SS_EDITCONTROL|SS_NOPREFIX
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12, 10, 241, 16, dlg.wnd, 0, instance, 0)
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var flags uintptr = 0x50030080 // WS_CHILD|WS_VISIBLE|WS_GROUP|WS_TABSTOP|ES_AUTOHSCROLL
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if opts.hideText {
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flags |= 0x20 // ES_PASSWORD
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}
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dlg.editCtl, _, _ = createWindowEx.Call(0x200, // WS_EX_CLIENTEDGE
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strptr("EDIT"), strptr(opts.entryText),
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flags,
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12, 30, 241, 24, dlg.wnd, 0, instance, 0)
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dlg.okBtn, _, _ = createWindowEx.Call(0,
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strptr("BUTTON"), strptr(*opts.okLabel),
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0x50030001, // WS_CHILD|WS_VISIBLE|WS_GROUP|WS_TABSTOP|BS_DEFPUSHBUTTON
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12, 66, 75, 24, dlg.wnd, 1 /* IDOK */, instance, 0)
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dlg.cancelBtn, _, _ = createWindowEx.Call(0,
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strptr("BUTTON"), strptr(*opts.cancelLabel),
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0x50010000, // WS_CHILD|WS_VISIBLE|WS_GROUP|WS_TABSTOP
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12, 66, 75, 24, dlg.wnd, 2 /* IDCANCEL */, instance, 0)
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if opts.extraButton != nil {
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dlg.extraBtn, _, _ = createWindowEx.Call(0,
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strptr("BUTTON"), strptr(*opts.extraButton),
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0x50010000, // WS_CHILD|WS_VISIBLE|WS_GROUP|WS_TABSTOP
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12, 66, 75, 24, dlg.wnd, 7 /* IDNO */, instance, 0)
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}
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dlg.layout(getDPI(dlg.wnd))
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centerWindow(dlg.wnd)
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setFocus.Call(dlg.editCtl)
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showWindow.Call(dlg.wnd, 1 /* SW_SHOWNORMAL */, 0)
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sendMessage.Call(dlg.editCtl, 0xb1 /* EM_SETSEL */, 0, intptr(-1))
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if opts.ctx != nil {
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wait := make(chan struct{})
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defer close(wait)
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go func() {
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select {
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case <-opts.ctx.Done():
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sendMessage.Call(dlg.wnd, 0x0112 /* WM_SYSCOMMAND */, 0xf060 /* SC_CLOSE */, 0)
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case <-wait:
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}
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}()
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}
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if err := messageLoop(dlg.wnd); err != nil {
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return "", err
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}
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if opts.ctx != nil && opts.ctx.Err() != nil {
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return "", opts.ctx.Err()
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}
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return dlg.out, dlg.err
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}
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func (dlg *entryDialog) layout(dpi dpi) {
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font := dlg.font.forDPI(dpi)
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sendMessage.Call(dlg.textCtl, 0x0030 /* WM_SETFONT */, font, 1)
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sendMessage.Call(dlg.editCtl, 0x0030 /* WM_SETFONT */, font, 1)
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sendMessage.Call(dlg.okBtn, 0x0030 /* WM_SETFONT */, font, 1)
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sendMessage.Call(dlg.cancelBtn, 0x0030 /* WM_SETFONT */, font, 1)
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sendMessage.Call(dlg.extraBtn, 0x0030 /* WM_SETFONT */, font, 1)
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setWindowPos.Call(dlg.wnd, 0, 0, 0, dpi.scale(281), dpi.scale(141), 0x6) // SWP_NOZORDER|SWP_NOMOVE
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setWindowPos.Call(dlg.textCtl, 0, dpi.scale(12), dpi.scale(10), dpi.scale(241), dpi.scale(16), 0x4) // SWP_NOZORDER
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setWindowPos.Call(dlg.editCtl, 0, dpi.scale(12), dpi.scale(30), dpi.scale(241), dpi.scale(24), 0x4) // SWP_NOZORDER
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if dlg.extraBtn == 0 {
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setWindowPos.Call(dlg.okBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), 0x4) // SWP_NOZORDER
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setWindowPos.Call(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), 0x4) // SWP_NOZORDER
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} else {
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setWindowPos.Call(dlg.okBtn, 0, dpi.scale(12), dpi.scale(66), dpi.scale(75), dpi.scale(24), 0x4) // SWP_NOZORDER
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setWindowPos.Call(dlg.extraBtn, 0, dpi.scale(95), dpi.scale(66), dpi.scale(75), dpi.scale(24), 0x4) // SWP_NOZORDER
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setWindowPos.Call(dlg.cancelBtn, 0, dpi.scale(178), dpi.scale(66), dpi.scale(75), dpi.scale(24), 0x4) // SWP_NOZORDER
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}
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}
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func entryProc(wnd uintptr, msg uint32, wparam uintptr, lparam *unsafe.Pointer) uintptr {
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var dlg *entryDialog
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switch msg {
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case 0x0081: // WM_NCCREATE
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saveBackRef(wnd, *lparam)
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dlg = (*entryDialog)(*lparam)
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case 0x0082: // WM_NCDESTROY
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deleteBackRef(wnd)
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default:
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dlg = (*entryDialog)(loadBackRef(wnd))
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}
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switch msg {
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case 0x0002: // WM_DESTROY
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postQuitMessage.Call(0)
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case 0x0010: // WM_CLOSE
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dlg.err = ErrCanceled
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destroyWindow.Call(wnd)
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case 0x0111: // WM_COMMAND
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switch wparam {
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default:
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return 1
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case 1, 6: // IDOK, IDYES
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dlg.out = getWindowString(dlg.editCtl)
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case 2: // IDCANCEL
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dlg.err = ErrCanceled
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case 7: // IDNO
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dlg.err = ErrExtraButton
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}
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destroyWindow.Call(wnd)
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case 0x02e0: // WM_DPICHANGED
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dlg.layout(dpi(uint32(wparam) >> 16))
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default:
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res, _, _ := defWindowProc.Call(wnd, uintptr(msg), wparam, uintptr(unsafe.Pointer(lparam)))
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return res
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}
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return 0
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2018-01-25 10:37:06 -05:00
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}
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