-/////////////////////////////////////////////////////////////////////////////
-// Name: taskbar.cpp
-// Purpose: wxTaskBarIcon OSX Implementation
+///////////////////////////////////////////////////////////////////////////////
+// Name: src/mac/carbon/taskbar.cpp
+// Purpose: wxTaskBarIcon
// Author: Ryan Norton
// Modified by:
// Created: 09/25/2004
// RCS-ID: $Id$
// Copyright: (c) 2004 Ryan Norton
// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
#include "wx/wxprec.h"
-#include "wx/defs.h"
-
#ifdef wxHAS_TASK_BAR_ICON
#include "wx/mac/private.h"
#include "wx/taskbar.h"
#include "wx/menu.h"
#include "wx/icon.h"
+#include "wx/dcmemory.h"
+
+
+class wxTaskBarIconImpl
+{
+public:
+ wxTaskBarIconImpl(wxTaskBarIcon* parent);
+ virtual ~wxTaskBarIconImpl();
+
+ virtual bool IsIconInstalled() const = 0;
+ virtual bool SetIcon(const wxIcon& icon, const wxString& tooltip) = 0;
+ virtual bool RemoveIcon() = 0;
+ virtual bool PopupMenu(wxMenu *menu) = 0;
+ wxMenu * CreatePopupMenu()
+ { return m_parent->CreatePopupMenu(); }
+
+ wxTaskBarIcon *m_parent;
+ class wxTaskBarIconWindow *m_menuEventWindow;
+
+ DECLARE_NO_COPY_CLASS(wxTaskBarIconImpl)
+};
+
+//-----------------------------------------------------------------------------
//
-//TODO: Implement Apple Software Guidelines - show the top window it it's not shown,
-//and force it to be unminimized - and all unminimized windows should be brought to
-//the front
+// wxTaskBarIconWindow
//
-//TODO:
-IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
+// Event handler for menus
+// NB: Since wxWindows in Mac HAVE to have parents we need this to be
+// a top level window...
+//-----------------------------------------------------------------------------
-pascal OSStatus wxDockEventHandler( EventHandlerCallRef inHandlerCallRef,
- EventRef inEvent, void* pData)
+class wxTaskBarIconWindow : public wxTopLevelWindow
{
- wxTaskBarIcon*& pTB = (wxTaskBarIcon*&) pData;
-
- const UInt32 eventClass = GetEventClass(inEvent);
- const UInt32 eventKind = GetEventKind(inEvent);
-
- if (eventClass == kEventClassCommand && eventKind == kEventCommandProcess)
+public:
+ wxTaskBarIconWindow(wxTaskBarIconImpl *impl)
+ : wxTopLevelWindow(NULL, -1, wxT("")), m_impl(impl)
{
- //TODO:
- //TODO: This is a complete copy of
- //static pascal OSStatus wxMacAppCommandEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
- //FIND A WAY TO EXTERN THIS AND USE THAT HERE INSTEAD!!
- //TODO:
- MenuRef hMenu = MAC_WXHMENU(pTB->GetCurrentMenu()->GetHMenu());
- OSStatus result = eventNotHandledErr ;
-
- HICommand command ;
- OSErr err;
-
- err = GetEventParameter(inEvent, kEventParamDirectObject, typeHICommand,
- NULL, sizeof(HICommand), NULL, &command);
- wxASSERT(err == noErr);
-
- MenuItemIndex menuItemIndex;
- err = GetIndMenuItemWithCommandID(hMenu, command.commandID, 1, NULL, &menuItemIndex);
- wxASSERT(err == noErr);
-
-
- MenuCommand id = command.commandID ;
- wxMenuItem* item = NULL;
- // for items we don't really control
- if ( id == kHICommandPreferences )
+ Connect(
+ -1, wxEVT_COMMAND_MENU_SELECTED,
+ wxCommandEventHandler(wxTaskBarIconWindow::OnMenuEvent) );
+ }
+
+ void OnMenuEvent(wxCommandEvent& event)
{
- id = wxApp::s_macPreferencesMenuItemId ;
-
- wxMenuBar* mbar = wxMenuBar::MacGetInstalledMenuBar() ;
- if ( mbar )
- {
- wxMenu* menu = NULL ;
- item = mbar->FindItem( id , &menu ) ;
- }
+ m_impl->m_parent->ProcessEvent(event);
}
- else if (id != 0)
- GetMenuItemRefCon( hMenu , menuItemIndex , (UInt32*) &item ) ;
- if ( item )
+private:
+ wxTaskBarIconImpl *m_impl;
+};
+
+class wxDockTaskBarIcon : public wxTaskBarIconImpl
+{
+public:
+ wxDockTaskBarIcon(wxTaskBarIcon* parent);
+ virtual ~wxDockTaskBarIcon();
+
+ virtual bool IsIconInstalled() const;
+ virtual bool SetIcon(const wxIcon& icon, const wxString& tooltip);
+ virtual bool RemoveIcon();
+ virtual bool PopupMenu(wxMenu *menu);
+
+ wxMenu* DoCreatePopupMenu();
+
+ EventHandlerRef m_eventHandlerRef;
+ EventHandlerUPP m_eventupp;
+ wxWindow *m_eventWindow;
+ wxMenu *m_pMenu;
+ MenuRef m_theLastMenu;
+ bool m_iconAdded;
+};
+
+// Forward declarations for utility functions for dock implementation
+pascal OSStatus wxDockEventHandler(
+ EventHandlerCallRef inHandlerCallRef,
+ EventRef inEvent, void* pData );
+wxMenu * wxDeepCopyMenu( wxMenu *menu );
+
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+// wxTaskBarIconImpl
+//
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+wxTaskBarIconImpl::wxTaskBarIconImpl(wxTaskBarIcon* parent)
+ : m_parent(parent), m_menuEventWindow(new wxTaskBarIconWindow(this))
+{
+}
+
+wxTaskBarIconImpl::~wxTaskBarIconImpl()
+{
+ delete m_menuEventWindow;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+// wxDockTaskBarIcon
+//
+// OS X Dock implementation of wxTaskBarIcon using Carbon
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+//-----------------------------------------------------------------------------
+// wxDockEventHandler
+//
+// This is the global Mac/Carbon event handler for the dock.
+// We need this for two reasons:
+// 1) To handle wxTaskBarIcon menu events (see below for why)
+// 2) To handle events from the dock when it requests a menu
+//-----------------------------------------------------------------------------
+pascal OSStatus wxDockEventHandler( EventHandlerCallRef inHandlerCallRef,
+ EventRef inEvent, void *pData )
+{
+ // Get the parameters we want from the event
+ wxDockTaskBarIcon* pTB = (wxDockTaskBarIcon*) pData;
+ const UInt32 eventClass = GetEventClass(inEvent);
+ const UInt32 eventKind = GetEventKind(inEvent);
+
+ // Handle wxTaskBar menu events (note that this is a global event handler
+ // so it will actually get called by all commands/menus)
+ if ((eventClass == kEventClassCommand) && (eventKind == kEventCommandProcess))
{
- if (item->IsCheckable())
+ // if we have no taskbar menu quickly pass it back to wxApp
+ if (pTB->m_pMenu == NULL)
+ return eventNotHandledErr;
+
+ // This is the real reason why we need this. Normally menus
+ // get handled in wxMacAppEventHandler
+ //
+ // pascal OSStatus wxMacAppEventHandler(EventHandlerCallRef handler,
+ // EventRef event, void *data)
+ //
+ // However, in the case of a taskbar menu call
+ // command.menu.menuRef IS NULL!
+ // Which causes the wxApp handler just to skip it.
+ MenuRef taskbarMenuRef = MAC_WXHMENU(pTB->m_pMenu->GetHMenu());
+ OSStatus err;
+
+ // get the HICommand from the event
+ HICommand command;
+ err = GetEventParameter(
+ inEvent, kEventParamDirectObject,
+ typeHICommand, NULL,
+ sizeof(HICommand), NULL, &command );
+ if (err == noErr)
{
- item->Check( !item->IsChecked() ) ;
- }
-
- item->GetMenu()->SendEvent( id , item->IsCheckable() ? item->IsChecked() : -1 ) ;
- result = noErr ;
- }
- return result ;
+ // Obtain the REAL menuRef and the menuItemIndex in the real menuRef
+ //
+ // NOTE: menuRef is generally used here for submenus, as
+ // GetMenuItemRefCon could give an incorrect wxMenuItem if we pass
+ // just the top level wxTaskBar menu
+ MenuItemIndex menuItemIndex;
+ MenuRef menuRef;
+
+ err = GetIndMenuItemWithCommandID(
+ taskbarMenuRef,
+ command.commandID,
+ 1, &menuRef, &menuItemIndex );
+ if (err == noErr)
+ {
+ MenuCommand id = command.commandID;
+ wxMenuItem *item = NULL;
+
+ if (id != 0) // get the wxMenuItem reference from the MenuRef
+ GetMenuItemRefCon( menuRef, menuItemIndex, (UInt32*) &item );
+
+ if (item)
+ {
+ // Handle items that are checkable
+ // FIXME: Doesn't work (at least on 10.2)!
+ if (item->IsCheckable())
+ item->Check( !item->IsChecked() );
+
+ // send the wxEvent to the wxMenu
+ item->GetMenu()->SendEvent( id, item->IsCheckable() ? item->IsChecked() : -1 );
+
+ // successfully handled the event
+ err = noErr;
+ }
+ }
+ } //end if noErr on getting HICommand from event
+
+ // return whether we handled the event or not
+ return err;
}
-
- wxASSERT(eventClass == kEventClassApplication && eventKind == kEventAppGetDockTileMenu);
-
- //process the right click event
- wxTaskBarIconEvent evt(wxEVT_TASKBAR_RIGHT_UP,NULL);
- pTB->ProcessEvent(evt);
-
- //create popup menu
+
+ // We better have a kEventClassApplication/kEventAppGetDockTileMenu combo here,
+ // otherwise something is truly funky
+ wxASSERT(eventClass == kEventClassApplication &&
+ eventKind == kEventAppGetDockTileMenu);
+
+ // process the right click events
+ // NB: This may result in double or even triple-creation of the menus
+ // We need to do this for 2.4 compat, however
+ wxTaskBarIconEvent downevt(wxEVT_TASKBAR_RIGHT_DOWN, NULL);
+ pTB->m_parent->ProcessEvent(downevt);
+
+ wxTaskBarIconEvent upevt(wxEVT_TASKBAR_RIGHT_UP, NULL);
+ pTB->m_parent->ProcessEvent(upevt);
+
+ // create popup menu
wxMenu* menu = pTB->DoCreatePopupMenu();
-
- OSStatus err = noErr;
- if(menu)
+ OSStatus err = eventNotHandledErr;
+
+ if (menu != NULL)
{
- //note to self - a MenuRef IS A MenuHandle
+ // note to self - a MenuRef *is* a MenuHandle
MenuRef hMenu = MAC_WXHMENU(menu->GetHMenu());
- //When we call SetEventParameter it will decrement
- //the reference count of the menu - we need to make
- //sure it stays around in the wxMenu class here
+ // When SetEventParameter is called it will decrement
+ // the reference count of the menu - we need to make
+ // sure it stays around in the wxMenu class here
RetainMenu(hMenu);
- //set the actual dock menu
- err = SetEventParameter((EventRef) inEvent, kEventParamMenuRef,
- typeMenuRef, sizeof(MenuRef),
- &hMenu);
- wxASSERT(err == 0);
+ // set the actual dock menu
+ err = SetEventParameter(
+ inEvent, kEventParamMenuRef,
+ typeMenuRef, sizeof(MenuRef), &hMenu );
+ verify_noerr( err );
}
return err;
}
-DEFINE_ONE_SHOT_HANDLER_GETTER( wxDockEventHandler );
-
-wxTaskBarIcon::wxTaskBarIcon(const wxTaskBarIconType& nType)
- : m_nType(nType), m_pEventHandlerRef(NULL), m_pMenu(NULL), m_iconAdded(false)
-{
- //Register the events that will return the dock menu
- EventTypeSpec tbEventList[] = { { kEventClassCommand, kEventProcessCommand },
- { kEventClassApplication, kEventAppGetDockTileMenu } };
-
-#ifdef __WXDEBUG__
- OSStatus err =
-#endif
- InstallApplicationEventHandler(
- GetwxDockEventHandlerUPP(),
- GetEventTypeCount(tbEventList), tbEventList,
- this, (&(EventHandlerRef&)m_pEventHandlerRef));
-
- wxASSERT(err == noErr);
+//-----------------------------------------------------------------------------
+// wxDeepCopyMenu
+//
+// Performs a top-to-bottom copy of the input menu and all of its
+// submenus.
+//
+// This is mostly needed for 2.4 compatability. However wxPython and others
+// still use this way of setting the taskbarmenu.
+//-----------------------------------------------------------------------------
+wxMenu * wxDeepCopyMenu( wxMenu *menu )
+{
+ if (menu == NULL)
+ return NULL;
+
+ // NB: Here we have to perform a deep copy of the menu,
+ // copying each and every menu item from menu to m_pMenu.
+ // Other implementations use wxWindow::PopupMenu here,
+ // which idle execution until the user selects something,
+ // but since the Mac handles this internally, we can't -
+ // and have no way at all to idle it while the dock menu
+ // is being shown before menu goes out of scope (it may
+ // not be on the heap, and may expire right after this function
+ // is done - we need it to last until the carbon event is triggered -
+ // that's when the user right clicks).
+ //
+ // Also, since there is no equal (assignment) operator
+ // on either wxMenu or wxMenuItem, we have to do all the
+ // dirty work ourselves.
+
+ // perform a deep copy of the menu
+ wxMenuItemList& theList = menu->GetMenuItems();
+ wxMenuItemList::compatibility_iterator theNode = theList.GetFirst();
+
+ // create the main menu
+ wxMenu *m_pMenu = new wxMenu(menu->GetTitle());
+
+ while (theNode != NULL)
+ {
+ wxMenuItem* theItem = theNode->GetData();
+ m_pMenu->Append(
+ new wxMenuItem(
+ m_pMenu, // parent menu
+ theItem->GetId(), // id
+ theItem->GetText(), // text label
+ theItem->GetHelp(), // status bar help string
+ theItem->GetKind(), // menu flags - checkable, separator, etc.
+ wxDeepCopyMenu(theItem->GetSubMenu()) )); // submenu
+
+ theNode = theNode->GetNext();
+ }
+
+ return m_pMenu;
}
-wxTaskBarIcon::~wxTaskBarIcon()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon ctor
+//
+// Initializes the dock implementation of wxTaskBarIcon.
+//
+// Here we create some Mac-specific event handlers and UPPs.
+//-----------------------------------------------------------------------------
+wxDockTaskBarIcon::wxDockTaskBarIcon(wxTaskBarIcon* parent)
+ : wxTaskBarIconImpl(parent),
+ m_eventHandlerRef(NULL), m_pMenu(NULL),
+ m_theLastMenu(GetApplicationDockTileMenu()), m_iconAdded(false)
{
- RemoveEventHandler((EventHandlerRef&)m_pEventHandlerRef);
+ // register the events that will return the dock menu
+ EventTypeSpec tbEventList[] =
+ {
+ { kEventClassCommand, kEventProcessCommand },
+ { kEventClassApplication, kEventAppGetDockTileMenu }
+ };
+
+ m_eventupp = NewEventHandlerUPP(wxDockEventHandler);
+ wxASSERT(m_eventupp != NULL);
+
+ OSStatus err = InstallApplicationEventHandler(
+ m_eventupp,
+ GetEventTypeCount(tbEventList), tbEventList,
+ this, &m_eventHandlerRef);
+ verify_noerr( err );
}
-wxMenu* wxTaskBarIcon::GetCurrentMenu()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon Destructor
+//
+// Cleans up mac events and restores the old icon to the dock
+//-----------------------------------------------------------------------------
+wxDockTaskBarIcon::~wxDockTaskBarIcon()
{
- return m_pMenu;
+ // clean up event handler and event UPP
+ RemoveEventHandler(m_eventHandlerRef);
+ DisposeEventHandlerUPP(m_eventupp);
+
+ // restore old icon and menu to the dock
+ RemoveIcon();
}
-wxMenu* wxTaskBarIcon::DoCreatePopupMenu()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::DoCreatePopupMenu
+//
+// Helper function that handles a request from the dock event handler
+// to get the menu for the dock
+//-----------------------------------------------------------------------------
+wxMenu * wxDockTaskBarIcon::DoCreatePopupMenu()
{
- if (m_pMenu)
- delete m_pMenu;
+ // get the menu from the parent
+ wxMenu* theNewMenu = CreatePopupMenu();
- m_pMenu = CreatePopupMenu();
-
- if (m_pMenu)
- m_pMenu->SetEventHandler(this);
-
+ if (theNewMenu)
+ {
+ if (m_pMenu)
+ delete m_pMenu;
+ m_pMenu = theNewMenu;
+ m_pMenu->SetInvokingWindow(m_menuEventWindow);
+ }
+
+ // the return here can be one of three things
+ // (in order of priority):
+ // 1) User passed a menu from CreatePopupMenu override
+ // 2) menu sent to and copied from PopupMenu
+ // 3) If neither (1) or (2), then NULL
+ //
return m_pMenu;
}
-// Operations:
-bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::IsIconInstalled
+//
+// Returns whether or not the dock is not using the default image
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::IsIconInstalled() const
{
- wxMask* mask = icon.GetMask();
- if (!mask)
- {
- // Make a mask with no transparent pixels
- wxBitmap bmp(icon.GetWidth(), icon.GetHeight());
- wxMemoryDC dc;
- dc.SelectObject(bmp);
- dc.SetBackground(*wxBLACK_BRUSH);
- dc.Clear();
- dc.SelectObject(wxNullBitmap);
- mask = new wxMask(bmp, *wxWHITE);
- }
-
- CGImageRef pImage;
-
- //create the icon from the bitmap and mask bitmap contained within
- OSStatus err = CreateCGImageFromPixMaps(
- GetGWorldPixMap(MAC_WXHBITMAP(icon.GetHBITMAP())),
- GetGWorldPixMap(MAC_WXHBITMAP(mask->GetMaskBitmap())),
- &pImage
- );
-
- wxASSERT(err == 0);
-
- err = SetApplicationDockTileImage(pImage);
-
- wxASSERT(err == 0);
-
+ return m_iconAdded;
+}
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::SetIcon
+//
+// Sets the icon for the dock CGImage functions and SetApplicationDockTileImage
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+{
+ // convert the wxIcon into a wxBitmap so we can perform some
+ // wxBitmap operations with it
+ wxBitmap bmp( icon );
+ wxASSERT( bmp.Ok() );
+
+ // get the CGImageRef for the wxBitmap:
+ // OSX builds only, but then the dock only exists in OSX
+ CGImageRef pImage = (CGImageRef) bmp.CGImageCreate();
+ wxASSERT( pImage != NULL );
+
+ // actually set the dock image
+ OSStatus err = SetApplicationDockTileImage( pImage );
+ verify_noerr( err );
+
+ // free the CGImage, now that it's referenced by the dock
if (pImage != NULL)
- CGImageRelease(pImage);
+ CGImageRelease( pImage );
+
+ bool success = (err == noErr);
+ m_iconAdded = success;
- if (!icon.GetMask())
- delete mask;
-
- return m_iconAdded = err == noErr;
+ return success;
}
-
-bool wxTaskBarIcon::RemoveIcon()
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::RemoveIcon
+//
+// Restores the old image for the dock via RestoreApplicationDockTileImage
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::RemoveIcon()
{
+ if (m_pMenu)
+ {
+ delete m_pMenu;
+ m_pMenu = NULL;
+ }
+
+ // restore old icon to the dock
OSStatus err = RestoreApplicationDockTileImage();
- wxASSERT(err == 0);
+ verify_noerr( err );
- return !(m_iconAdded = !(err == noErr));
+ // restore the old menu to the dock
+ SetApplicationDockTileMenu( m_theLastMenu );
+
+ bool success = (err == noErr);
+ m_iconAdded = !success;
+
+ return success;
}
-
-bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::PopupMenu
+//
+// 2.4 and wxPython method that "pops of the menu in the taskbar".
+//
+// In reality because of the way the dock menu works in carbon
+// we just save the menu, and if the user didn't override CreatePopupMenu
+// return the menu passed here, thus sort of getting the same effect.
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::PopupMenu(wxMenu *menu)
{
+ wxASSERT(menu != NULL);
+
if (m_pMenu)
delete m_pMenu;
-
- m_pMenu = menu;
-
- wxASSERT(menu);
- m_pMenu->SetEventHandler(this);
-
- return SetApplicationDockTileMenu(MAC_WXHMENU(menu->GetHMenu()));
+
+ // start copy of menu
+ m_pMenu = wxDeepCopyMenu(menu);
+
+ // finish up
+ m_pMenu->SetInvokingWindow(m_menuEventWindow);
+
+ return true;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+// wxTaskBarIcon
+//
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
+
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon Constructor
+//
+// Creates the backend
+//
+// Note that we only support DOCK currently as others require cocoa and
+// also some require hacks and other such things. (MenuExtras are
+// actually seperate programs that also require a special undocumented id
+// hack and other such fun stuff).
+//-----------------------------------------------------------------------------
+wxTaskBarIcon::wxTaskBarIcon(wxTaskBarIconType nType)
+{
+ wxASSERT_MSG(
+ nType == DOCK,
+ wxT("Only the DOCK implementation of wxTaskBarIcon on Mac-Carbon is currently supported!") );
+
+ m_impl = new wxDockTaskBarIcon(this);
+}
+
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon Destructor
+//
+// Destroys the backend
+//-----------------------------------------------------------------------------
+wxTaskBarIcon::~wxTaskBarIcon()
+{
+ delete m_impl;
}
-#endif //wxHAS_TASK_BAR_ICON
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon::SetIcon
+// wxTaskBarIcon::RemoveIcon
+// wxTaskBarIcon::PopupMenu
+//
+// Just calls the backend version of the said function.
+//-----------------------------------------------------------------------------
+bool wxTaskBarIcon::IsIconInstalled() const
+{ return m_impl->IsIconInstalled(); }
+
+bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+{ return m_impl->SetIcon(icon, tooltip); }
+
+bool wxTaskBarIcon::RemoveIcon()
+{ return m_impl->RemoveIcon(); }
+
+bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
+{ return m_impl->PopupMenu(menu); }
+
+#endif // wxHAS_TASK_BAR_ICON
projects / wxWidgets.git / blobdiff