Move Configure Paths help inside dialog.

This allows us to switch back to a standard modal dialog (instead of
quasi-modal, which has problems with Ctrl-V in a search box inside a
standard file dialog -- such as when picking a path).

Fixes https://gitlab.com/kicad/code/kicad/issues/9473

common/dialogs/dialog_configure_paths.cpp

@@ -62,7 +62,8 @@ DIALOG_CONFIGURE_PATHS::DIALOG_CONFIGURE_PATHS( wxWindow* aParent, FILENAME_RESO
     m_resolver( aResolver ),
     m_gridWidth( 0 ),
     m_gridWidthsDirty( true ),
-    m_helpDialog( nullptr )
+    m_helpBox( nullptr ),
+    m_heightBeforeHelp( 400 )
 {
     m_btnAddEnvVar->SetBitmap( KiBitmap( BITMAPS::small_plus ) );
     m_btnDeleteEnvVar->SetBitmap( KiBitmap( BITMAPS::small_trash ) );
@@ -128,9 +129,6 @@ DIALOG_CONFIGURE_PATHS::~DIALOG_CONFIGURE_PATHS()
     m_SearchPaths->PopEventHandler( true );
     m_EnvVars->PopEventHandler( true );
 
-    if( m_helpDialog )
-        m_helpDialog->Destroy();
-
     m_EnvVars->Disconnect( wxEVT_GRID_CELL_CHANGING,
                            wxGridEventHandler( DIALOG_CONFIGURE_PATHS::OnGridCellChanging ),
                            nullptr, this );
@@ -594,14 +592,12 @@ void DIALOG_CONFIGURE_PATHS::OnUpdateUI( wxUpdateUIEvent& event )
         m_gridWidthsDirty = false;
     }
 
-    // Handle a grid error.  This is delayed to OnUpdateUI so that we can change focus
+    // Handle a grid error.  This is delayed to OnUpdateUI so that we can change focus even when
-    // even when the original validation was triggered from a killFocus event (and for
+    // the original validation was triggered from a killFocus event.
-    // dialog with notebooks, so that the corresponding notebook page can be shown in
-    // the background when triggered from an OK).
     if( m_errorGrid )
     {
-        // We will re-enter this routine when the error dialog is displayed, so make
+        // We will re-enter this routine when the error dialog is displayed, so make sure we don't
-        // sure we don't keep putting up more dialogs.
+        // keep putting up more dialogs.
         wxGrid* grid = m_errorGrid;
         m_errorGrid = nullptr;
 
@@ -628,11 +624,12 @@ void DIALOG_CONFIGURE_PATHS::OnGridSize( wxSizeEvent& event )
 
 void DIALOG_CONFIGURE_PATHS::OnHelp( wxCommandEvent& event )
 {
-    if( m_helpDialog )
+    wxSizer* sizerMain = GetSizer();
+
+    if( !m_helpBox )
     {
-        m_helpDialog->ShowModeless();
+        m_helpBox = new HTML_WINDOW( this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
-        return;
+                                     wxHW_SCROLLBAR_AUTO );
-    }
 
         wxString msg = _( "Enter the name and value for each environment variable.  Grey entries "
                           "are names that have been defined externally at the system or user "
@@ -644,7 +641,7 @@ void DIALOG_CONFIGURE_PATHS::OnHelp( wxCommandEvent& event )
                   "will only accept upper case letters, digits, and the underscore characters." );
         msg << "</b>";
 
-    for( const auto& var : ENV_VAR::GetPredefinedEnvVars() )
+        for( const wxString& var : ENV_VAR::GetPredefinedEnvVars() )
         {
             msg << "<br><br><b>" << var << "</b>";
 
@@ -655,11 +652,27 @@ void DIALOG_CONFIGURE_PATHS::OnHelp( wxCommandEvent& event )
 
         }
 
-    m_helpDialog = new HTML_MESSAGE_BOX( nullptr, _( "Environment Variable Help" ) );
+        m_helpBox->SetPage( msg );
-    m_helpDialog->SetDialogSizeInDU( 400, 250 );
+        m_helpBox->Show( false );
 
-    m_helpDialog->AddHTML_Text( msg );
+        sizerMain->Insert( sizerMain->GetItemCount() - 1, m_helpBox, 1, wxALL|wxEXPAND, 10 );
-    m_helpDialog->ShowModeless();
+    }
 
-    // m_helpDialog will be destroyed when closing the dialog
+    if( m_helpBox->IsShown() )
+    {
+        m_helpBox->Show( false );
+        SetClientSize( wxSize( GetClientSize().x, m_heightBeforeHelp ) );
+    }
+    else
+    {
+        m_helpBox->Show( true );
+        m_heightBeforeHelp = GetClientSize().y;
+
+        int minHelpBoxHeight = GetTextExtent( wxT( "T" ) ).y * 20;
+
+        if( GetClientSize().y < minHelpBoxHeight * 2 )
+            SetClientSize( wxSize( GetClientSize().x, GetClientSize().y + minHelpBoxHeight ) );
+    }
+
+    Layout();
 }

common/tool/common_control.cpp

@@ -113,8 +113,7 @@ int COMMON_CONTROL::ConfigurePaths( const TOOL_EVENT& aEvent )
     {
         DIALOG_CONFIGURE_PATHS dlg( m_frame, nullptr );
 
-        // Use QuasiModal so that HTML help window will work
+        if( dlg.ShowModal() == wxID_OK )
-        if( dlg.ShowQuasiModal() == wxID_OK )
             m_frame->Kiway().CommonSettingsChanged( true, false );
     }
 

include/dialogs/dialog_configure_paths.h

@@ -32,7 +32,7 @@
 
 
 class FILENAME_RESOLVER;
-class HTML_MESSAGE_BOX;
+class HTML_WINDOW;
 
 
 class DIALOG_CONFIGURE_PATHS: public DIALOG_CONFIGURE_PATHS_BASE
@@ -74,7 +74,8 @@ private:
     int                 m_gridWidth;
     bool                m_gridWidthsDirty;
 
-    HTML_MESSAGE_BOX*   m_helpDialog;
+    HTML_WINDOW*        m_helpBox;
+    int                 m_heightBeforeHelp;
 };
 
 #endif    // _DIALOG_CONFIGURE_PATHS_H_