zenity/entry_windows.go

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package zenity
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import (
"syscall"
)
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func entry(text string, opts options) (out string, ok bool, err error) {
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var title string
if opts.title != nil {
title = *opts.title
}
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if opts.okLabel == nil {
opts.okLabel = stringPtr("OK")
}
if opts.cancelLabel == nil {
opts.cancelLabel = stringPtr("Cancel")
}
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return entryDlg(title, text, opts)
}
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func entryDlg(title, text string, opts options) (out string, ok bool, err error) {
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defer setup()()
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font := getFont()
defer font.Delete()
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defWindowProc := defWindowProc.Addr()
var wnd, textCtl, editCtl uintptr
var okBtn, cancelBtn, extraBtn uintptr
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layout := func(dpi dpi) {
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hfont := font.ForDPI(dpi)
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sendMessage.Call(textCtl, 0x0030 /* WM_SETFONT */, hfont, 1)
sendMessage.Call(editCtl, 0x0030 /* WM_SETFONT */, hfont, 1)
sendMessage.Call(okBtn, 0x0030 /* WM_SETFONT */, hfont, 1)
sendMessage.Call(cancelBtn, 0x0030 /* WM_SETFONT */, hfont, 1)
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setWindowPos.Call(wnd, 0, 0, 0, dpi.Scale(281), dpi.Scale(141), 0x6) // SWP_NOZORDER|SWP_NOMOVE
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setWindowPos.Call(textCtl, 0, dpi.Scale(12), dpi.Scale(10), dpi.Scale(241), dpi.Scale(16), 0x4) // SWP_NOZORDER
setWindowPos.Call(editCtl, 0, dpi.Scale(12), dpi.Scale(30), dpi.Scale(241), dpi.Scale(24), 0x4) // SWP_NOZORDER
if extraBtn == 0 {
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setWindowPos.Call(okBtn, 0, dpi.Scale(95), dpi.Scale(66), dpi.Scale(75), dpi.Scale(24), 0x4) // SWP_NOZORDER
setWindowPos.Call(cancelBtn, 0, dpi.Scale(178), dpi.Scale(66), dpi.Scale(75), dpi.Scale(24), 0x4) // SWP_NOZORDER
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} else {
sendMessage.Call(extraBtn, 0x0030 /* WM_SETFONT */, hfont, 1)
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setWindowPos.Call(okBtn, 0, dpi.Scale(12), dpi.Scale(66), dpi.Scale(75), dpi.Scale(24), 0x4) // SWP_NOZORDER
setWindowPos.Call(extraBtn, 0, dpi.Scale(95), dpi.Scale(66), dpi.Scale(75), dpi.Scale(24), 0x4) // SWP_NOZORDER
setWindowPos.Call(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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proc := func(wnd uintptr, msg uint32, wparam, lparam uintptr) uintptr {
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switch msg {
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case 0x0002: // WM_DESTROY
postQuitMessage.Call(0)
case 0x0010: // WM_CLOSE
destroyWindow.Call(wnd)
case 0x0111: // WM_COMMAND
switch wparam {
default:
return 1
case 1, 6: // IDOK, IDYES
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out = getWindowString(editCtl)
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ok = true
case 2: // IDCANCEL
case 7: // IDNO
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err = ErrExtraButton
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}
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destroyWindow.Call(wnd)
case 0x02e0: // WM_DPICHANGED
layout(dpi(uint32(wparam) >> 16))
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default:
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ret, _, _ := syscall.Syscall6(defWindowProc, 4, wnd, uintptr(msg), wparam, lparam, 0, 0)
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return ret
}
return 0
}
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if opts.ctx != nil && opts.ctx.Err() != nil {
return "", false, opts.ctx.Err()
}
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instance, _, err := getModuleHandle.Call(0)
if instance == 0 {
return "", false, err
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}
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cls, err := registerClass(instance, syscall.NewCallback(proc))
if cls == 0 {
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return "", false, err
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}
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defer unregisterClass.Call(cls, instance)
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wnd, _, _ = createWindowEx.Call(0x10101, // WS_EX_CONTROLPARENT|WS_EX_WINDOWEDGE|WS_EX_DLGMODALFRAME
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cls, strptr(title),
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0x84c80000, // WS_POPUPWINDOW|WS_CLIPSIBLINGS|WS_DLGFRAME
0x80000000, // CW_USEDEFAULT
0x80000000, // CW_USEDEFAULT
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281, 141, 0, 0, instance)
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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
12, 10, 241, 16, wnd, 0, instance)
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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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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, wnd, 0, instance)
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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, wnd, 1 /* IDOK */, instance)
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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, wnd, 2 /* IDCANCEL */, instance)
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if opts.extraButton != nil {
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, wnd, 7 /* IDNO */, instance)
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}
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layout(getDPI(wnd))
centerWindow(wnd)
setFocus.Call(editCtl)
showWindow.Call(wnd, 1 /* SW_SHOWNORMAL */, 0)
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sendMessage.Call(editCtl, 0xb1 /* EM_SETSEL */, 0, intptr(-1))
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if opts.ctx != nil {
wait := make(chan struct{})
defer close(wait)
go func() {
select {
case <-opts.ctx.Done():
sendMessage.Call(wnd, 0x0112 /* WM_SYSCOMMAND */, 0xf060 /* SC_CLOSE */, 0)
case <-wait:
}
}()
}
// set default values
out, ok, err = "", false, nil
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if err := messageLoop(wnd); err != nil {
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return "", false, err
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}
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if opts.ctx != nil && opts.ctx.Err() != nil {
return "", false, opts.ctx.Err()
}
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return out, ok, err
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}