Jinoh Kang : riched20: Don't call wrap_marked_paras_dc() before the editor is fully initialized.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 548d7179e3b2b9961321a4df50644c9b3874a295
URL:    https://gitlab.winehq.org/wine/wine/-/commit/548d7179e3b2b9961321a4df50644c9...

Author: Jinoh Kang 
Date:   Thu Jul 13 20:50:27 2023 +0900

riched20: Don't call wrap_marked_paras_dc() before the editor is fully initialized.

Today, CreateTextServices() sometimes triggers an assertion failure in
select_style().

When ME_MakeEditor() calls ME_MakeFirstParagraph(), the editor
(ME_TextEditor) is not in a fully initialized state.  For example, the
font cache (pFontCache) is not fully initialized, which sometimes makes
select_style() believe that the cache slots are fully occupied.

Fix this by delaying the call to wrap_marked_paras_dc() until the editor
is fully initialized.

Also, delay the call to ITextHost::TxReleaseDC() until after
wrap_marked_paras_dc(), since we need the device context a bit longer.

Fixes: b70eb32c5f3e506181d9e1e9fbef62e9baf3674d

---

dlls/riched20/editor.c | 4 +++-
 dlls/riched20/para.c   | 1 -
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index d1819482b28..2b0d6533659 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -2961,7 +2961,6 @@ ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)

hdc = ITextHost_TxGetDC( ed->texthost );
   ME_MakeFirstParagraph( ed, hdc );
-  ITextHost_TxReleaseDC( ed->texthost, hdc );
   /* The four cursors are for:
    * 0 - The position where the caret is shown
    * 1 - The anchored end of the selection (for normal selection)
@@ -3061,6 +3060,9 @@ ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
   list_init( &ed->reobj_list );
   OleInitialize(NULL);

+  wrap_marked_paras_dc( ed, hdc, FALSE );
+  ITextHost_TxReleaseDC( ed->texthost, hdc );
+
   return ed;
 }

diff --git a/dlls/riched20/para.c b/dlls/riched20/para.c
index 50a1073397a..a380f45e556 100644
--- a/dlls/riched20/para.c
+++ b/dlls/riched20/para.c
@@ -221,7 +221,6 @@ void ME_MakeFirstParagraph(ME_TextEditor *editor, HDC hdc)
   wine_rb_init( &editor->marked_paras, para_mark_compare );
   para_mark_add( editor, para );
   ME_DestroyContext(&c);
-  wrap_marked_paras_dc( editor, hdc, FALSE );
 }

static void para_mark_rewrap_paras( ME_TextEditor *editor, ME_Paragraph *first, const ME_Paragraph *end )