X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/14f355c2b5c71fc7c3d680aea366582d2ac60f7b..a305d600e2b4b233c9263abacc39e6da88c0171e:/src/gtk1/clipbrd.cpp diff --git a/src/gtk1/clipbrd.cpp b/src/gtk1/clipbrd.cpp index 6f316b16ee..7f02601153 100644 --- a/src/gtk1/clipbrd.cpp +++ b/src/gtk1/clipbrd.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: gtk/clipbrd.cpp +// Name: src/gtk1/clipbrd.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ @@ -7,38 +7,30 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "clipbrd.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#include "wx/clipbrd.h" - #if wxUSE_CLIPBOARD -#include "wx/dataobj.h" -#include "wx/utils.h" -#include "wx/log.h" +#include "wx/clipbrd.h" + +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/dataobj.h" +#endif #include #include #include -//----------------------------------------------------------------------------- -// thread system -//----------------------------------------------------------------------------- - -#if wxUSE_THREADS -#endif - //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- GdkAtom g_clipboardAtom = 0; GdkAtom g_targetsAtom = 0; +GdkAtom g_timestampAtom = 0; // the trace mask we use with wxLogTrace() - call // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here @@ -74,6 +66,7 @@ struct _GtkSelectionData // "selection_received" for targets //----------------------------------------------------------------------------- +extern "C" { static void targets_selection_received( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, @@ -86,14 +79,17 @@ targets_selection_received( GtkWidget *WXUNUSED(widget), GdkAtom type = selection_data->type; if ( type != GDK_SELECTION_TYPE_ATOM ) { - if ( strcmp(gdk_atom_name(type), "TARGETS") ) + gchar* atom_name = gdk_atom_name(type); + if ( strcmp(atom_name, "TARGETS") ) { wxLogTrace( TRACE_CLIPBOARD, _T("got unsupported clipboard target") ); - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; + g_free(atom_name); return; } + g_free(atom_name); } #ifdef __WXDEBUG__ @@ -114,26 +110,28 @@ targets_selection_received( GtkWidget *WXUNUSED(widget), wxT("selection received for targets, format %s"), format.GetId().c_str() ); -// printf( "format %s requested %s\n", +// printf( "format %s requested %s\n", // gdk_atom_name( atoms[i] ), // gdk_atom_name( clipboard->m_targetRequested ) ); if (format == clipboard->m_targetRequested) { - clipboard->m_waiting = FALSE; - clipboard->m_formatSupported = TRUE; + clipboard->m_waiting = false; + clipboard->m_formatSupported = true; return; } } } - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; +} } //----------------------------------------------------------------------------- // "selection_received" for the actual data //----------------------------------------------------------------------------- +extern "C" { static void selection_received( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, @@ -142,7 +140,7 @@ selection_received( GtkWidget *WXUNUSED(widget), { if (!wxTheClipboard) { - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; return; } @@ -150,13 +148,13 @@ selection_received( GtkWidget *WXUNUSED(widget), if (!data_object) { - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; return; } if (selection_data->length <= 0) { - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; return; } @@ -165,28 +163,33 @@ selection_received( GtkWidget *WXUNUSED(widget), // make sure we got the data in the correct format if (!data_object->IsSupportedFormat( format ) ) { - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; return; } - /* make sure we got the data in the correct form (selection type). - if so, copy data to target object */ +#if 0 + This seems to cause problems somehow + // make sure we got the data in the correct form (selection type). + // if so, copy data to target object if (selection_data->type != GDK_SELECTION_TYPE_STRING) { - clipboard->m_waiting = FALSE; + clipboard->m_waiting = false; return; } +#endif data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data ); - wxTheClipboard->m_formatSupported = TRUE; - clipboard->m_waiting = FALSE; + wxTheClipboard->m_formatSupported = true; + clipboard->m_waiting = false; +} } //----------------------------------------------------------------------------- // "selection_clear" //----------------------------------------------------------------------------- +extern "C" { static gint selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) { @@ -194,16 +197,16 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) if (event->selection == GDK_SELECTION_PRIMARY) { - wxTheClipboard->m_ownsPrimarySelection = FALSE; + wxTheClipboard->m_ownsPrimarySelection = false; } else if (event->selection == g_clipboardAtom) { - wxTheClipboard->m_ownsClipboard = FALSE; + wxTheClipboard->m_ownsClipboard = false; } else { - wxTheClipboard->m_waiting = FALSE; + wxTheClipboard->m_waiting = false; return FALSE; } @@ -220,20 +223,22 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) } } - wxTheClipboard->m_waiting = FALSE; + wxTheClipboard->m_waiting = false; return TRUE; } +} //----------------------------------------------------------------------------- // selection handler for supplying data //----------------------------------------------------------------------------- +extern "C" { static void selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, guint WXUNUSED(info), guint WXUNUSED(time), - gpointer WXUNUSED(data) ) + gpointer signal_data ) { if (!wxTheClipboard) return; @@ -241,8 +246,37 @@ selection_handler( GtkWidget *WXUNUSED(widget), wxDataObject *data = wxTheClipboard->m_data; + // ICCCM says that TIMESTAMP is a required atom. + // In particular, it satisfies Klipper, which polls + // TIMESTAMP to see if the clipboards content has changed. + // It shall return the time which was used to set the data. + if (selection_data->target == g_timestampAtom) + { + guint timestamp = GPOINTER_TO_UINT (signal_data); + gtk_selection_data_set(selection_data, + GDK_SELECTION_TYPE_INTEGER, + 32, + (guchar*)&(timestamp), + sizeof(timestamp)); + wxLogTrace(TRACE_CLIPBOARD, + _T("Clipboard TIMESTAMP requested, returning timestamp=%u"), + timestamp); + return; + } + wxDataFormat format( selection_data->target ); +#ifdef __WXDEBUG__ + wxLogTrace(TRACE_CLIPBOARD, + _T("clipboard data in format %s, GtkSelectionData is target=%s type=%s selection=%s timestamp=%u"), + format.GetId().c_str(), + wxString::FromAscii(gdk_atom_name(selection_data->target)).c_str(), + wxString::FromAscii(gdk_atom_name(selection_data->type)).c_str(), + wxString::FromAscii(gdk_atom_name(selection_data->selection)).c_str(), + GPOINTER_TO_UINT( signal_data ) + ); +#endif + if (!data->IsSupportedFormat( format )) return; int size = data->GetDataSize( format ); @@ -255,14 +289,15 @@ selection_handler( GtkWidget *WXUNUSED(widget), data->GetDataHere( selection_data->target, d ); gtk_selection_data_set( - selection_data, - GDK_SELECTION_TYPE_STRING, - 8*sizeof(gchar), - (unsigned char*) d, - size ); + selection_data, + GDK_SELECTION_TYPE_STRING, + 8 * sizeof(gchar), + (unsigned char*) d, + size ); free(d); } +} //----------------------------------------------------------------------------- // wxClipboard @@ -272,10 +307,11 @@ IMPLEMENT_DYNAMIC_CLASS(wxClipboard,wxObject) wxClipboard::wxClipboard() { - m_open = FALSE; + m_open = false; + m_waiting = false; - m_ownsClipboard = FALSE; - m_ownsPrimarySelection = FALSE; + m_ownsClipboard = false; + m_ownsPrimarySelection = false; m_data = (wxDataObject*) NULL; m_receivedData = (wxDataObject*) NULL; @@ -307,11 +343,12 @@ wxClipboard::wxClipboard() if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE ); if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE); + if (!g_timestampAtom) g_timestampAtom = gdk_atom_intern ("TIMESTAMP", FALSE); - m_formatSupported = FALSE; + m_formatSupported = false; m_targetRequested = 0; - m_usePrimary = FALSE; + m_usePrimary = false; } wxClipboard::~wxClipboard() @@ -334,7 +371,7 @@ void wxClipboard::Clear() // it, clear_selection is called which will set m_data to zero if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window) { - m_waiting = TRUE; + m_waiting = true; gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, (guint32) GDK_CURRENT_TIME ); @@ -344,7 +381,7 @@ void wxClipboard::Clear() if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window) { - m_waiting = TRUE; + m_waiting = true; gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, (guint32) GDK_CURRENT_TIME ); @@ -364,23 +401,23 @@ void wxClipboard::Clear() } m_targetRequested = 0; - m_formatSupported = FALSE; + m_formatSupported = false; } bool wxClipboard::Open() { - wxCHECK_MSG( !m_open, FALSE, wxT("clipboard already open") ); + wxCHECK_MSG( !m_open, false, wxT("clipboard already open") ); - m_open = TRUE; + m_open = true; - return TRUE; + return true; } bool wxClipboard::SetData( wxDataObject *data ) { - wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); + wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); - wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); + wxCHECK_MSG( data, false, wxT("data is invalid") ); Clear(); @@ -389,9 +426,9 @@ bool wxClipboard::SetData( wxDataObject *data ) bool wxClipboard::AddData( wxDataObject *data ) { - wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); + wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); - wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); + wxCHECK_MSG( data, false, wxT("data is invalid") ); // we can only store one wxDataObject Clear(); @@ -406,6 +443,11 @@ bool wxClipboard::AddData( wxDataObject *data ) GdkAtom clipboard = m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY : g_clipboardAtom; + // by default provide TIMESTAMP as a target + gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), + clipboard, + g_timestampAtom, + 0 ); for (size_t i = 0; i < m_data->GetFormatCount(); i++) { @@ -413,9 +455,9 @@ bool wxClipboard::AddData( wxDataObject *data ) wxT("wxClipboard now supports atom %s"), array[i].GetId().c_str() ); -// printf( "added %s\n", +// printf( "added %s\n", // gdk_atom_name( array[i].GetFormatId() ) ); - + gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), clipboard, array[i], @@ -427,7 +469,7 @@ bool wxClipboard::AddData( wxDataObject *data ) gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), "selection_get", GTK_SIGNAL_FUNC(selection_handler), - (gpointer) NULL ); + GUINT_TO_POINTER( gdk_event_get_time(gtk_get_current_event()) ) ); #if wxUSE_THREADS /* disable GUI threads */ @@ -454,7 +496,7 @@ void wxClipboard::Close() { wxCHECK_RET( m_open, wxT("clipboard not open") ); - m_open = FALSE; + m_open = false; } bool wxClipboard::IsOpened() const @@ -465,30 +507,28 @@ bool wxClipboard::IsOpened() const bool wxClipboard::IsSupported( const wxDataFormat& format ) { /* reentrance problems */ - if (m_waiting) return FALSE; + if (m_waiting) return false; /* store requested format to be asked for by callbacks */ m_targetRequested = format; -#if 0 wxLogTrace( TRACE_CLIPBOARD, wxT("wxClipboard:IsSupported: requested format: %s"), format.GetId().c_str() ); -#endif - wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") ); + wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); - m_formatSupported = FALSE; + m_formatSupported = false; /* perform query. this will set m_formatSupported to - TRUE if m_targetRequested is supported. + true if m_targetRequested is supported. also, we have to wait for the "answer" from the clipboard owner which is an asynchronous process. - therefore we set m_waiting = TRUE here and wait + therefore we set m_waiting = true here and wait until the callback "targets_selection_received" - sets it to FALSE */ + sets it to false */ - m_waiting = TRUE; + m_waiting = true; gtk_selection_convert( m_targetsWidget, m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY @@ -498,14 +538,12 @@ bool wxClipboard::IsSupported( const wxDataFormat& format ) while (m_waiting) gtk_main_iteration(); - if (!m_formatSupported) return FALSE; - - return TRUE; + return m_formatSupported; } bool wxClipboard::GetData( wxDataObject& data ) { - wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); + wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); /* get formats from wxDataObjects */ wxDataFormat *array = new wxDataFormat[ data.GetFormatCount() ]; @@ -524,19 +562,19 @@ bool wxClipboard::GetData( wxDataObject& data ) /* store requested format to be asked for by callbacks */ m_targetRequested = format; - wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") ); + wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); - m_formatSupported = FALSE; + m_formatSupported = false; /* perform query. this will set m_formatSupported to - TRUE if m_targetRequested is supported. + true if m_targetRequested is supported. also, we have to wait for the "answer" from the clipboard owner which is an asynchronous process. - therefore we set m_waiting = TRUE here and wait + therefore we set m_waiting = true here and wait until the callback "targets_selection_received" - sets it to FALSE */ + sets it to false */ - m_waiting = TRUE; + m_waiting = true; gtk_selection_convert( m_targetsWidget, m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY @@ -554,21 +592,21 @@ bool wxClipboard::GetData( wxDataObject& data ) /* store requested format to be asked for by callbacks */ m_targetRequested = format; - wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") ); + wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); /* start query */ - m_formatSupported = FALSE; + m_formatSupported = false; /* ask for clipboard contents. this will set - m_formatSupported to TRUE if m_targetRequested + m_formatSupported to true if m_targetRequested is supported. also, we have to wait for the "answer" from the clipboard owner which is an asynchronous process. - therefore we set m_waiting = TRUE here and wait + therefore we set m_waiting = true here and wait until the callback "targets_selection_received" - sets it to FALSE */ + sets it to false */ - m_waiting = TRUE; + m_waiting = true; wxLogTrace( TRACE_CLIPBOARD, wxT("wxClipboard::GetData: format found, start convert") ); @@ -582,11 +620,11 @@ bool wxClipboard::GetData( wxDataObject& data ) while (m_waiting) gtk_main_iteration(); /* this is a true error as we checked for the presence of such data before */ - wxCHECK_MSG( m_formatSupported, FALSE, wxT("error retrieving data from clipboard") ); + wxCHECK_MSG( m_formatSupported, false, wxT("error retrieving data from clipboard") ); /* return success */ delete[] array; - return TRUE; + return true; } wxLogTrace( TRACE_CLIPBOARD, @@ -594,9 +632,8 @@ bool wxClipboard::GetData( wxDataObject& data ) /* return failure */ delete[] array; - return FALSE; + return false; } #endif // wxUSE_CLIPBOARD -