krbookmarkhandler.cpp

LINUX 下, 以 QT/KDE 写的档案管理员

		int id = menu->insertItem(QIconSet(krLoader->loadIcon(bm->icon(), KIcon::Small)),
									bm->text(), newMenu, -1 /* dummy id */, -1 /* end of list */);
		
		if( !_bookmarkIDTable.find( menu ) )
			_bookmarkIDTable.insert( menu, new QMap<int, KrBookmark *> );
		(*_bookmarkIDTable[ menu ])[ id ] = bm;
		
		++inSecondaryMenu;
		buildMenu(bm, newMenu);
		--inSecondaryMenu;
	}
	for (KrBookmark *bm = parent->children().first(); bm; bm = parent->children().next()) {
		if (bm->isFolder()) continue;
		if (bm->isSeparator() ) {
			menu->insertSeparator();
			continue;
		}
		int itemIndex = bm->plug(menu, -1 /* end of list */);
		CONNECT_BM(bm);
		
		int id = bm->itemId( itemIndex );
		if( !_bookmarkIDTable.find( menu ) )
			_bookmarkIDTable.insert( menu, new QMap<int, KrBookmark *> );
		(*_bookmarkIDTable[ menu ])[ id ] = bm;
	}

	if (!inSecondaryMenu) {
		krConfig->setGroup( "Private" );
		bool hasPopularURLs = krConfig->readBoolEntry( "BM Popular URLs", true );
		bool hasDevices     = krConfig->readBoolEntry( "BM Devices",      true );
		bool hasLan         = krConfig->readBoolEntry( "BM Lan",          true );
		bool hasVirtualFS   = krConfig->readBoolEntry( "BM Virtual FS",   true );
		bool hasJumpback    = krConfig->readBoolEntry( "BM Jumpback",     true );
		
		int itemIndex;
		
		if( hasPopularURLs ) {
			menu->insertSeparator();
			
			// add the popular links submenu
			KPopupMenu *newMenu = new KPopupMenu(menu);
			itemIndex = menu->insertItem(QIconSet(krLoader->loadIcon("bookmark_folder", KIcon::Small)),
										i18n("Popular URLs"), newMenu, -1 /* dummy id */, -1 /* end of list */);
			_specialBookmarkIDs.append( itemIndex );
			// add the top 15 urls
			#define MAX 15
			KURL::List list = krApp->popularUrls->getMostPopularUrls(MAX);
			KURL::List::Iterator it;
			for (it = list.begin(); it != list.end(); ++it) {
				QString name;
				if ((*it).isLocalFile()) name = (*it).path();
				else name = (*it).prettyURL();
				// note: these bookmark are put into the private collection
				// as to not spam the general collection
				KrBookmark *bm = KrBookmark::getExistingBookmark(name, _privateCollection);
				if (!bm)
					bm = new KrBookmark(name, *it, _privateCollection);
				bm->plug(newMenu);
				CONNECT_BM(bm);
			}
			
			newMenu->insertSeparator();
			krPopularUrls->plug(newMenu);
			newMenu->installEventFilter(this);
		}
		
		// do we need to add special bookmarks?
		if (SPECIAL_BOOKMARKS) {
			if( hasDevices || hasLan || hasVirtualFS || hasJumpback )
				menu->insertSeparator();
			
			KrBookmark *bm;
			
			// note: special bookmarks are not kept inside the _bookmarks list and added ad-hoc
			if( hasDevices ) {
				bm = KrBookmark::devices(_collection);
				itemIndex = bm->plug(menu);
				_specialBookmarkIDs.append( bm->itemId( itemIndex ) );
				CONNECT_BM(bm);
			}
			
			if( hasLan ) {
				bm = KrBookmark::lan(_collection);
				itemIndex = bm->plug(menu);
				_specialBookmarkIDs.append( bm->itemId( itemIndex ) );
				CONNECT_BM(bm);
			}
			
			if( hasVirtualFS ) {
				bm = KrBookmark::virt(_collection);
				itemIndex = bm->plug(menu);
				_specialBookmarkIDs.append( bm->itemId( itemIndex ) );
				CONNECT_BM(bm);
			}
			
			if( hasJumpback ) {
				// add the jump-back button
				itemIndex = krJumpBack->plug(menu);
				_specialBookmarkIDs.append( krJumpBack->itemId( itemIndex ) );
				menu->insertSeparator();
				itemIndex = krSetJumpBack->plug(menu);
				_specialBookmarkIDs.append( krSetJumpBack->itemId( itemIndex ) );
			}
		} 
		
		if( !hasJumpback )
			menu->insertSeparator();
		
		itemIndex = menu->insertItem(krLoader->loadIcon("bookmark_add", KIcon::Small),
			i18n("Bookmark Current"), BookmarkCurrent);
		_specialBookmarkIDs.append( itemIndex );
		itemIndex = menu->insertItem(krLoader->loadIcon("bookmark", KIcon::Small),
			i18n("Manage Bookmarks"), ManageBookmarks);
		_specialBookmarkIDs.append( itemIndex );
	
		// make sure the menu is connected to us
		disconnect(menu, SIGNAL(activated(int)), 0, 0);
		connect(menu, SIGNAL(activated(int)), this, SLOT(menuOperation(int)));
	}

	menu->installEventFilter(this);
}

void KrBookmarkHandler::clearBookmarks(KrBookmark *root) {
	KrBookmark *bm = root->children().first();
	while (bm) {	
		if (bm->isFolder())
			clearBookmarks(bm);
		else {
			bm->unplugAll();
			delete bm;
		}

		bm = root->children().next();
	}
	root->children().clear();
}

void KrBookmarkHandler::bookmarksChanged(const QString&, const QString&) {
	importFromFile();
}

bool KrBookmarkHandler::eventFilter( QObject *obj, QEvent *ev ) {
	if (ev->type() == QEvent::MouseButtonRelease) {
		switch (static_cast<QMouseEvent*>(ev)->button()) {
			case RightButton:
				_middleClick = false;
				if( obj->inherits( "QPopupMenu" ) ) {
					int id = static_cast<QPopupMenu*>(obj)->idAt( static_cast<QMouseEvent*>(ev)->pos() );
					
					if( obj == _mainBookmarkPopup && _specialBookmarkIDs.contains( id ) ) {
						rightClickOnSpecialBookmark();
						return true;
					}
					
					if( _bookmarkIDTable.find( obj ) ) {
						QMap<int, KrBookmark*> * table = _bookmarkIDTable[ obj ];
						if( table && table->count( id ) ) {
							KrBookmark *bm = (*table)[ id ];
							rightClicked( static_cast<QPopupMenu*>(obj), id, bm );
							return true;
						}
					}
				}
			case LeftButton:
				_middleClick = false;
				break;
			case MidButton:
				_middleClick = true;
				break;
			default:
				break;
		}
	}
	return QObject::eventFilter(obj, ev);
}

#define POPULAR_URLS_ID        100100
#define DEVICES_ID             100101
#define LAN_ID                 100103
#define VIRTUAL_FS_ID          100102
#define JUMP_BACK_ID           100104

void KrBookmarkHandler::rightClickOnSpecialBookmark() {
	krConfig->setGroup( "Private" );
	bool hasPopularURLs = krConfig->readBoolEntry( "BM Popular URLs", true );
	bool hasDevices     = krConfig->readBoolEntry( "BM Devices",      true );
	bool hasLan         = krConfig->readBoolEntry( "BM Lan",          true );
	bool hasVirtualFS   = krConfig->readBoolEntry( "BM Virtual FS",   true );
	bool hasJumpback    = krConfig->readBoolEntry( "BM Jumpback",     true );
	
	QPopupMenu menu( _mainBookmarkPopup );
	menu.setCaption( i18n( "Enable special bookmarks" ) );
	menu.setCheckable( true );
	
	menu.insertItem( i18n( "Popular URLs" ), POPULAR_URLS_ID );
	menu.setItemChecked( POPULAR_URLS_ID, hasPopularURLs );
	menu.insertItem( i18n( "Devices" ), DEVICES_ID );
	menu.setItemChecked( DEVICES_ID, hasDevices );
	menu.insertItem( i18n( "Local Network" ), LAN_ID );
	menu.setItemChecked( LAN_ID, hasLan );
	menu.insertItem( i18n( "Virtual Filesystem" ), VIRTUAL_FS_ID );
	menu.setItemChecked( VIRTUAL_FS_ID, hasVirtualFS );
	menu.insertItem( i18n( "Jump back" ), JUMP_BACK_ID );
	menu.setItemChecked( JUMP_BACK_ID, hasJumpback );
	
	connect( _mainBookmarkPopup, SIGNAL( highlighted( int ) ), &menu, SLOT( close() ) );
	connect( _mainBookmarkPopup, SIGNAL( activated( int ) ), &menu, SLOT( close() ) );
	
	int result = menu.exec( QCursor::pos() );
	bool doCloseMain = true;
	
	krConfig->setGroup( "Private" );
	
	switch( result ) {
	case POPULAR_URLS_ID:
		krConfig->writeEntry( "BM Popular URLs", !hasPopularURLs );
		break;
	case DEVICES_ID:
		krConfig->writeEntry( "BM Devices", !hasDevices );
		break;
	case LAN_ID:
		krConfig->writeEntry( "BM Lan", !hasLan );
		break;
	case VIRTUAL_FS_ID:
		krConfig->writeEntry( "BM Virtual FS", !hasVirtualFS );
		break;
	case JUMP_BACK_ID:
		krConfig->writeEntry( "BM Jumpback", !hasJumpback );
		break;
	default:
		doCloseMain = false;
		break;
	}
	
	menu.close();
	
	if( doCloseMain && _mainBookmarkPopup )
		_mainBookmarkPopup->close();
}

#define OPEN_ID           100200
#define OPEN_NEW_TAB_ID   100201
#define DELETE_ID         100202

void KrBookmarkHandler::rightClicked( QPopupMenu *menu, int /*id*/, KrBookmark * bm ) {
	QPopupMenu popup( _mainBookmarkPopup );
	
	popup.insertItem( krLoader->loadIcon( "fileopen", KIcon::Panel ), i18n( "Open" ), OPEN_ID );
	popup.insertItem( krLoader->loadIcon( "tab_new", KIcon::Panel ), i18n( "Open in a new tab" ), OPEN_NEW_TAB_ID );
	popup.insertSeparator();
	popup.insertItem( krLoader->loadIcon( "editdelete", KIcon::Panel ), i18n( "Delete" ), DELETE_ID );
	
	connect( menu, SIGNAL( highlighted( int ) ), &popup, SLOT( close() ) );
	connect( menu, SIGNAL( activated( int ) ), &popup, SLOT( close() ) );
	
	int result = popup.exec( QCursor::pos() );
	
	popup.close();
	if( _mainBookmarkPopup && result >= OPEN_ID && result <= DELETE_ID ) {
		_mainBookmarkPopup->close();
	}
	
	switch( result ) {
	case OPEN_ID:
		SLOTS->refresh( bm->url() );
		break;
	case OPEN_NEW_TAB_ID:
		SLOTS->newTab( bm->url() );
		break;
	case DELETE_ID:
		deleteBookmark( bm );
		break;
	}
}

// used to monitor middle clicks. if mid is found, then the
// bookmark is opened in a new tab. ugly, but easier than overloading
// KAction and KActionCollection.
void KrBookmarkHandler::slotActivated(const KURL& url) {
	if (_middleClick)
		SLOTS->newTab(url);
	else SLOTS->refresh(url);
}


#include "krbookmarkhandler.moc"