dialogs.cpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * dialogs.cpp
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: dialogs.cpp 8524 2004-08-25 21:32:15Z ipkiss $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teuli鑢e <ipkiss@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #include "dialogs.hpp"
- #include "../commands/async_queue.hpp"
- #include "../commands/cmd_change_skin.hpp"
- #include "../commands/cmd_quit.hpp"
- #include "../commands/cmd_playlist.hpp"
- /// Callback called when a new skin is chosen
- void Dialogs::showChangeSkinCB( intf_dialog_args_t *pArg )
- {
- intf_thread_t *pIntf = (intf_thread_t *)pArg->p_arg;
- if( pArg->i_results )
- {
- if( pArg->psz_results[0] )
- {
- // Create a change skin command
- CmdChangeSkin *pCmd =
- new CmdChangeSkin( pIntf, pArg->psz_results[0] );
- // Push the command in the asynchronous command queue
- AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
- pQueue->remove( "change skin" );
- pQueue->push( CmdGenericPtr( pCmd ) );
- }
- }
- else if( !pIntf->p_sys->p_theme )
- {
- // If no theme is already loaded, it's time to quit!
- CmdQuit *pCmd = new CmdQuit( pIntf );
- AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
- pQueue->push( CmdGenericPtr( pCmd ) );
- }
- }
- void Dialogs::showPlaylistLoadCB( intf_dialog_args_t *pArg )
- {
- intf_thread_t *pIntf = (intf_thread_t *)pArg->p_arg;
- if( pArg->i_results && pArg->psz_results[0] )
- {
- // Create a Playlist Load command
- CmdPlaylistLoad *pCmd =
- new CmdPlaylistLoad( pIntf, pArg->psz_results[0] );
- // Push the command in the asynchronous command queue
- AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
- pQueue->remove( "load playlist" );
- pQueue->push( CmdGenericPtr( pCmd ) );
- }
- }
- void Dialogs::showPlaylistSaveCB( intf_dialog_args_t *pArg )
- {
- intf_thread_t *pIntf = (intf_thread_t *)pArg->p_arg;
- if( pArg->i_results && pArg->psz_results[0] )
- {
- // Create a Playlist Save command
- CmdPlaylistSave *pCmd =
- new CmdPlaylistSave( pIntf, pArg->psz_results[0] );
- // Push the command in the asynchronous command queue
- AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
- pQueue->remove( "load playlist" );
- pQueue->push( CmdGenericPtr( pCmd ) );
- }
- }
- /// Callback called when the popup menu is requested
- static int PopupMenuCB( vlc_object_t *p_this, const char *psz_variable,
- vlc_value_t old_val, vlc_value_t new_val, void *param )
- {
- Dialogs *p_dialogs = (Dialogs *)param;
- p_dialogs->showPopupMenu( new_val.b_bool );
- return VLC_SUCCESS;
- }
- Dialogs::Dialogs( intf_thread_t *pIntf ):
- SkinObject( pIntf ), m_pProvider( NULL ), m_pModule( NULL )
- {
- }
- Dialogs::~Dialogs()
- {
- if( m_pProvider && m_pModule )
- {
- // Detach the dialogs provider from its parent interface
- vlc_object_detach( m_pProvider );
- module_Unneed( m_pProvider, m_pModule );
- vlc_object_destroy( m_pProvider );
- }
- /* Unregister callbacks */
- var_DelCallback( getIntf()->p_sys->p_playlist, "intf-popupmenu",
- PopupMenuCB, this );
- }
- Dialogs *Dialogs::instance( intf_thread_t *pIntf )
- {
- if( ! pIntf->p_sys->p_dialogs )
- {
- Dialogs *pDialogs = new Dialogs( pIntf );
- if( pDialogs->init() )
- {
- // Initialization succeeded
- pIntf->p_sys->p_dialogs = pDialogs;
- }
- else
- {
- // Initialization failed
- delete pDialogs;
- }
- }
- return pIntf->p_sys->p_dialogs;
- }
- void Dialogs::destroy( intf_thread_t *pIntf )
- {
- if( pIntf->p_sys->p_dialogs )
- {
- delete pIntf->p_sys->p_dialogs;
- pIntf->p_sys->p_dialogs = NULL;
- }
- }
- bool Dialogs::init()
- {
- // Allocate descriptor
- m_pProvider = (intf_thread_t *)vlc_object_create( getIntf(),
- VLC_OBJECT_DIALOGS );
- if( m_pProvider == NULL )
- {
- msg_Err( getIntf(), "out of memory" );
- return false;
- }
- m_pModule = module_Need( m_pProvider, "dialogs provider", NULL, 0 );
- if( m_pModule == NULL )
- {
- msg_Err( getIntf(), "No suitable dialogs provider found" );
- vlc_object_destroy( m_pProvider );
- m_pProvider = NULL;
- return false;
- }
- // Attach the dialogs provider to its parent interface
- vlc_object_attach( m_pProvider, getIntf() );
- // Initialize dialogs provider
- // (returns as soon as initialization is done)
- if( m_pProvider->pf_run )
- {
- m_pProvider->pf_run( m_pProvider );
- }
- /* Register callback for the intf-popupmenu variable */
- var_AddCallback( getIntf()->p_sys->p_playlist, "intf-popupmenu",
- PopupMenuCB, this );
- return true;
- }
- void Dialogs::showFileGeneric( const string &rTitle, const string &rExtensions,
- DlgCallback callback, int flags )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- intf_dialog_args_t *p_arg =
- (intf_dialog_args_t *)malloc( sizeof(intf_dialog_args_t) );
- memset( p_arg, 0, sizeof(intf_dialog_args_t) );
- p_arg->psz_title = strdup( rTitle.c_str() );
- p_arg->psz_extensions = strdup( rExtensions.c_str() );
- p_arg->b_save = flags & kSAVE;
- p_arg->b_multiple = flags & kMULTIPLE;
- p_arg->p_arg = getIntf();
- p_arg->pf_callback = callback;
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_FILE_GENERIC,
- 0, p_arg );
- }
- }
- void Dialogs::showChangeSkin()
- {
- showFileGeneric( _("Open a skin file"),
- _("Skin files (*.vlt)|*.vlt|Skin files (*.xml)|*.xml|"),
- showChangeSkinCB, kOPEN );
- }
- void Dialogs::showPlaylistLoad()
- {
- showFileGeneric( _("Open playlist"),
- _("All playlists|*.pls;*.m3u;*.asx;*.b4s|M3U files|*.m3u"),
- showPlaylistLoadCB, kOPEN );
- }
- void Dialogs::showPlaylistSave()
- {
- showFileGeneric( _("Save playlist"), _("M3U file|*.m3u"),
- showPlaylistSaveCB, kSAVE );
- }
- void Dialogs::showFileSimple( bool play )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_FILE_SIMPLE,
- (int)play, 0 );
- }
- }
- void Dialogs::showFile( bool play )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_FILE,
- (int)play, 0 );
- }
- }
- void Dialogs::showDisc( bool play )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_DISC,
- (int)play, 0 );
- }
- }
- void Dialogs::showNet( bool play )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_NET,
- (int)play, 0 );
- }
- }
- void Dialogs::showMessages()
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_MESSAGES, 0, 0 );
- }
- }
- void Dialogs::showPrefs()
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_PREFS, 0, 0 );
- }
- }
- void Dialogs::showFileInfo()
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_FILEINFO, 0, 0 );
- }
- }
- void Dialogs::showPopupMenu( bool bShow )
- {
- if( m_pProvider && m_pProvider->pf_show_dialog )
- {
- m_pProvider->pf_show_dialog( m_pProvider, INTF_DIALOG_POPUPMENU,
- (int)bShow, 0 );
- }
- }