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riched20: Call ME_UpdateRepaint instead of editor_ensure_visible in set_selection.

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To prevent cases where ME_WrapMarkedParagraphs has not been called causing a NULL
pointer when editor_ensure_visible tries to get the row from the cursor.
This commit is contained in:
Santino Mazza 2023-06-08 16:32:42 -03:00 • committed by Alexandre Julliard
parent f76d8ba6c6
commit c5daf6a30f
2 changed files with 55 additions and 2 deletions
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2
dlls/riched20/editor.c
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@ -2150,7 +2150,7 @@ int set_selection( ME_TextEditor *editor, int to, int from )
if (!editor->bHideSelection) ME_InvalidateSelection( editor );
end = set_selection_cursors( editor, to, from );
editor_ensure_visible( editor, &editor->pCursors[0] );
ME_UpdateRepaint( editor, FALSE );
if (!editor->bHideSelection) ME_InvalidateSelection( editor );
update_caret( editor );
ME_SendSelChange( editor );

55
dlls/riched20/tests/txtsrv.c
View file

@ -38,6 +38,27 @@
#include <oleauto.h>
#include <limits.h>
#define DEFINE_EXPECT(func) \
static UINT called_count_ ## func = 0
#define INCREASE_CALL_COUNTER(func) \
do { \
called_count_ ## func++; \
}while(0)
#define CHECK_CALLED(func) \
do { \
ok(called_count_ ## func, "expected " #func "\n"); \
}while(0)
#define CHECK_NOT_CALLED(func) \
do { \
ok(!called_count_ ## func, "unexpected " #func "\n"); \
}while(0)
#define CLEAR_COUNTER(func) \
called_count_ ## func = 0
static HMODULE hmoduleRichEdit;
static IID *pIID_ITextServices;
static IID *pIID_ITextHost;
@ -81,6 +102,8 @@ static ITextServicesVtbl itextServicesStdcallVtbl;
/************************************************************************/
/* ITextHost implementation for conformance testing. */
DEFINE_EXPECT(ITextHostImpl_TxViewChange);
typedef struct ITextHostTestImpl
{
ITextHost ITextHost_iface;
@ -198,6 +221,7 @@ static void __thiscall ITextHostImpl_TxViewChange(ITextHost *iface, BOOL fUpdate
ITextHostTestImpl *This = impl_from_ITextHost(iface);
TRACECALL("Call to TxViewChange(%p, fUpdate=%d)\n",
This, fUpdate);
INCREASE_CALL_COUNTER(ITextHostImpl_TxViewChange);
}
static BOOL __thiscall ITextHostImpl_TxCreateCaret(ITextHost *iface, HBITMAP hbmp, INT xWidth, INT yHeight)
@ -620,7 +644,7 @@ static BOOL init_texthost(ITextServices **txtserv, ITextHost **ret)
memset(&dummyTextHost->char_format, 0, sizeof(dummyTextHost->char_format));
dummyTextHost->char_format.cbSize = sizeof(dummyTextHost->char_format);
dummyTextHost->char_format.dwMask = CFM_ALL2;
dummyTextHost->scrollbars = 0;
dummyTextHost->scrollbars = ES_AUTOVSCROLL;
dummyTextHost->props = 0;
hf = GetStockObject(DEFAULT_GUI_FONT);
hf_to_cf(hf, &dummyTextHost->char_format);
@ -1240,6 +1264,34 @@ static void test_notifications( void )
ITextHost_Release( host );
}
static void test_set_selection_message( void )
{
ITextServices *txtserv;
ITextHost *host;
LRESULT result;
HRESULT hr;
if (!init_texthost(&txtserv, &host))
return;
CLEAR_COUNTER(ITextHostImpl_TxViewChange);
hr = ITextServices_TxSendMessage(txtserv, EM_SETSEL, 0, 20, &result);
ok( hr == S_OK, "got %08lx\n", hr );
CHECK_CALLED(ITextHostImpl_TxViewChange);
CLEAR_COUNTER(ITextHostImpl_TxViewChange);
ITextServices_TxSetText(txtserv, lorem);
CHECK_CALLED(ITextHostImpl_TxViewChange);
CLEAR_COUNTER(ITextHostImpl_TxViewChange);
hr = ITextServices_TxSendMessage(txtserv, EM_SETSEL, 0, 20, &result);
ok( hr == S_OK, "got %08lx\n", hr );
CHECK_CALLED(ITextHostImpl_TxViewChange);
ITextServices_Release( txtserv );
ITextHost_Release( host );
}
START_TEST( txtsrv )
{
ITextServices *txtserv;
@ -1273,6 +1325,7 @@ START_TEST( txtsrv )
test_default_format();
test_TxGetScroll();
test_notifications();
test_set_selection_message();
}
if (wrapperCodeMem) VirtualFree(wrapperCodeMem, 0, MEM_RELEASE);
}