X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8b53e5a2261d192bce49d40f0019f52f73b1557a..2a29700ecf3d6862db16c5f5c9086a698a7ff247:/src/gtk/clipbrd.cpp diff --git a/src/gtk/clipbrd.cpp b/src/gtk/clipbrd.cpp index 253a7157a7..99ce0ac8b8 100644 --- a/src/gtk/clipbrd.cpp +++ b/src/gtk/clipbrd.cpp @@ -13,6 +13,12 @@ #include "wx/clipbrd.h" +#if wxUSE_CLIPBOARD + +#include "glib.h" +#include "gdk/gdk.h" +#include "gtk/gtk.h" + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- @@ -98,12 +104,12 @@ selection_received( GtkWidget *WXUNUSED(widget), // make sure we got the data in the correct format - if (data_object->m_formatAtom != selection_data->target) return; + if (data_object->GetFormat().GetAtom() != selection_data->target) return; // make sure we got the data in the correct form (selection type). // if so, copy data to target object - switch (data_object->GetFormat()) + switch (data_object->GetFormat().GetType()) { case wxDF_TEXT: { @@ -152,14 +158,35 @@ selection_received( GtkWidget *WXUNUSED(widget), //----------------------------------------------------------------------------- static gint -selection_clear( GtkWidget *WXUNUSED(widget), GdkEventSelection *WXUNUSED(event) ) +selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) { if (!wxTheClipboard) return TRUE; - - // the clipboard is no longer in our hands. we have to delete the - // clipboard data. - wxTheClipboard->m_dataObjects.Clear(); + if (event->selection == GDK_SELECTION_PRIMARY) + { + wxTheClipboard->m_ownsPrimarySelection = FALSE; + } + else + if (event->selection == g_clipboardAtom) + { + wxTheClipboard->m_ownsClipboard = FALSE; + } + else + { + return FALSE; + } + + if ((!wxTheClipboard->m_ownsPrimarySelection) && + (!wxTheClipboard->m_ownsClipboard)) + { + /* the clipboard is no longer in our hands. we can the clipboard data. */ + + if (wxTheClipboard->m_dataBroker) + { + delete wxTheClipboard->m_dataBroker; + wxTheClipboard->m_dataBroker = (wxDataBroker*) NULL; + } + } return TRUE; } @@ -173,19 +200,21 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data { if (!wxTheClipboard) return; - wxNode *node = wxTheClipboard->m_dataObjects.First(); + if (!wxTheClipboard->m_dataBroker) return; + + wxNode *node = wxTheClipboard->m_dataBroker->m_dataObjects.First(); while (node) { wxDataObject *data_object = (wxDataObject *)node->Data(); - if (data_object->m_formatAtom != selection_data->target) + if (data_object->GetFormat().GetAtom() != selection_data->target) { node = node->Next(); break; } - switch (data_object->GetFormat()) + switch (data_object->GetFormat().GetType()) { case wxDF_TEXT: { @@ -219,14 +248,14 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data { wxPrivateDataObject *private_object = (wxPrivateDataObject*) data_object; - if (private_object->GetDataSize() == 0) return; + if (private_object->GetSize() == 0) return; gtk_selection_data_set( selection_data, GDK_SELECTION_TYPE_STRING, 8*sizeof(gchar), (unsigned char*) private_object->GetData(), - (int) private_object->GetDataSize() ); + (int) private_object->GetSize() ); } default: @@ -247,7 +276,10 @@ wxClipboard::wxClipboard() { m_open = FALSE; - m_dataObjects.DeleteContents( TRUE ); + m_ownsClipboard = FALSE; + m_ownsPrimarySelection = FALSE; + + m_dataBroker = (wxDataBroker*) NULL; m_receivedData = (wxDataObject*) NULL; @@ -256,7 +288,7 @@ wxClipboard::wxClipboard() gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), "selection_clear_event", - GTK_SIGNAL_FUNC( selection_clear ), + GTK_SIGNAL_FUNC( selection_clear_clip ), (gpointer) NULL ); if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE ); @@ -276,17 +308,26 @@ wxClipboard::~wxClipboard() void wxClipboard::Clear() { - if (m_dataObjects.GetCount()) + if (m_dataBroker) { /* As we have data we also own the clipboard. Once we no longer own it, clear_selection is called which will set m_data to zero */ - if (gdk_selection_owner_get( g_clipboardAtom) == m_clipboardWidget->window) + if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window) { gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, GDK_CURRENT_TIME ); } - m_dataObjects.Clear(); + if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window) + { + gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME ); + } + + if (m_dataBroker) + { + delete m_dataBroker; + m_dataBroker = (wxDataBroker*) NULL; + } } m_targetRequested = 0; @@ -305,34 +346,55 @@ bool wxClipboard::Open() bool wxClipboard::SetData( wxDataObject *data ) { - wxCHECK_MSG( data, FALSE, "data is invalid" ); + wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); - m_dataObjects.Append( data ); + wxCHECK_MSG( data, FALSE, "data is invalid" ); + Clear(); + + return AddData( data ); +} + +bool wxClipboard::AddData( wxDataObject *data ) +{ wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); - if (data->GetFormat() == wxDF_PRIVATE) - { - wxPrivateDataObject* pd = (wxPrivateDataObject*) data; - - wxCHECK_MSG( !pd->GetId().IsEmpty(), FALSE, "private clipboard format requires ID string" ); + wxCHECK_MSG( data, FALSE, "data is invalid" ); + + /* if clipboard has been cleared before, create new data broker */ + + if (!m_dataBroker) m_dataBroker = new wxDataBroker(); + + /* add new data to list of offered data objects */ + + m_dataBroker->Add( data ); + + /* get native format id of new data object */ + + GdkAtom format = data->GetFormat().GetAtom(); - data->m_formatAtom = GetTargetAtom( data->GetFormat(), pd->GetId() ); - } - else - { - data->m_formatAtom = GetTargetAtom( data->GetFormat() ); - } + wxCHECK_MSG( format, FALSE, "data has invalid format" ); + + /* This should happen automatically, but to be on the safe side */ - // Add handlers if someone requests data + m_ownsClipboard = FALSE; + m_ownsPrimarySelection = FALSE; + + /* Add handlers if someone requests data */ gtk_selection_add_handler( m_clipboardWidget, g_clipboardAtom, - data->m_formatAtom, + format, + selection_handler, + (gpointer) NULL ); + + gtk_selection_add_handler( m_clipboardWidget, + GDK_SELECTION_PRIMARY, + format, selection_handler, - NULL ); + (gpointer) NULL ); - // Tell the world we offer clipboard data + /* Tell the world we offer clipboard data */ if (!gtk_selection_owner_set( m_clipboardWidget, g_clipboardAtom, @@ -340,7 +402,16 @@ bool wxClipboard::SetData( wxDataObject *data ) { return FALSE; } - + m_ownsClipboard = TRUE; + + if (!gtk_selection_owner_set( m_clipboardWidget, + GDK_SELECTION_PRIMARY, + GDK_CURRENT_TIME )) + { + return FALSE; + } + m_ownsPrimarySelection = TRUE; + return TRUE; } @@ -351,13 +422,17 @@ void wxClipboard::Close() m_open = FALSE; } -bool wxClipboard::IsSupportedFormat( wxDataFormat format, const wxString &id ) +bool wxClipboard::IsSupported( wxDataObject &data ) { - m_targetRequested = GetTargetAtom( format, id ); + wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); + + /* store requested format to be asked for by callbacks */ + + m_targetRequested = data.GetFormat().GetAtom(); - if (m_targetRequested == 0) return FALSE; + wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" ); - // add handler for target (= format) query + /* add handler for target (= format) query */ gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), "selection_received", @@ -366,8 +441,8 @@ bool wxClipboard::IsSupportedFormat( wxDataFormat format, const wxString &id ) m_formatSupported = FALSE; - // perform query. this will set m_formatSupported to - // TRUE if m_targetRequested is supported + /* perform query. this will set m_formatSupported to + * TRUE if m_targetRequested is supported */ gtk_selection_convert( m_clipboardWidget, g_clipboardAtom, @@ -379,35 +454,30 @@ bool wxClipboard::IsSupportedFormat( wxDataFormat format, const wxString &id ) (gpointer) this ); if (!m_formatSupported) return FALSE; - + return TRUE; -} - -bool wxClipboard::GetData( wxDataObject *data ) +} + +bool wxClipboard::GetData( wxDataObject &data ) { wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); - m_receivedData = data; + /* is data supported by clipboard ? */ - wxCHECK_MSG( m_receivedData, FALSE, "invalid data object" ); + if (!IsSupported( data )) return FALSE; - if (m_receivedData->GetFormat() == wxDF_PRIVATE) - { - wxPrivateDataObject* pd = (wxPrivateDataObject*) m_receivedData; - - wxCHECK_MSG( !pd->GetId().IsEmpty(), FALSE, "private clipboard format requires ID string" ); - - m_targetRequested = GetTargetAtom( m_receivedData->GetFormat(), pd->GetId() ); - } - else - { - m_targetRequested = GetTargetAtom( m_receivedData->GetFormat() ); - } + /* store pointer to data object to be filled up by callbacks */ - data->m_formatAtom = m_targetRequested; - - wxCHECK_MSG( m_targetRequested, FALSE, "unsupported clipboard format" ); + m_receivedData = &data; + + /* store requested format to be asked for by callbacks */ + + m_targetRequested = data.GetFormat().GetAtom(); + wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" ); + + /* start query */ + m_formatSupported = FALSE; gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), @@ -415,6 +485,8 @@ bool wxClipboard::GetData( wxDataObject *data ) GTK_SIGNAL_FUNC( selection_received ), (gpointer) this ); + /* ask for clipboard contents */ + gtk_selection_convert( m_clipboardWidget, g_clipboardAtom, m_targetRequested, @@ -424,45 +496,13 @@ bool wxClipboard::GetData( wxDataObject *data ) GTK_SIGNAL_FUNC( selection_received ), (gpointer) this ); + /* this is a true error as we checked for the presence of such data before */ + wxCHECK_MSG( m_formatSupported, FALSE, "error retrieving data from clipboard" ); return TRUE; } -GdkAtom wxClipboard::GetTargetAtom( wxDataFormat format, const wxString &id ) -{ - // What is X representation of that format? - - switch (format) - { - case wxDF_TEXT: - { - return GDK_TARGET_STRING; - // g_textAtom - } - - case wxDF_BITMAP: - { - return GDK_TARGET_BITMAP; - break; - } - - case wxDF_PRIVATE: - { - // we create our own X representation - - return gdk_atom_intern( WXSTRINGCAST( id ), FALSE ); - } - - default: - { - return (GdkAtom) 0; - } - } - - return (GdkAtom) 0; -} - //----------------------------------------------------------------------------- // wxClipboardModule //----------------------------------------------------------------------------- @@ -481,3 +521,8 @@ void wxClipboardModule::OnExit() if (wxTheClipboard) delete wxTheClipboard; wxTheClipboard = (wxClipboard*) NULL; } + +#endif + + // wxUSE_CLIPBOARD +