Source code of Windows XP (NT5)
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// mediabar.h : Declaration of the CMediaBand
#ifndef __MEDIABAND_H_
#define __MEDIABAND_H_
#include "dpa.h"
#include "bands.h"
#include "player.h"
#include "mediautil.h"
#include "mbutil.h"
#include "mbBehave.h"
#include "iface.h"
#define ERROREXIT(hr) if(FAILED(hr)){hr = E_FAIL; goto done;}
enum
{
MW_PLAY = 0,
MW_STOP,
MW_BACK,
MW_NEXT,
MW_MUTE,
MW_VOLUME,
MW_OPTIONS,
MW_POP,
MW_SEEK,
MW_NUMBER
};
#define WM_MB_DEFERRED_NAVIGATE (WM_USER + 700) // lParam: hwnd of window sending this message (used for reflection)
class CMediaBand : public CToolBand,
public IMediaBar,
public IWinEventHandler,
public INamespaceWalkCB,
public IElementBehaviorFactory,
public IBrowserBand,
public IBandNavigate,
public IMediaHost,
public IDispatchImpl<DWebBrowserEvents2, &DIID_DWebBrowserEvents2, &LIBID_SHDocVw>,
public CMediaBarUtil
{
public:
CMediaBand();
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj);
STDMETHODIMP_(ULONG) AddRef(void) { return CToolBand::AddRef(); };
STDMETHODIMP_(ULONG) Release(void) { return CToolBand::Release(); };
// IOleCommandTarget
STDMETHODIMP Exec(const GUID *pguidCmdGroup,
DWORD nCmdID,
DWORD nCmdexecopt,
VARIANTARG *pvarargIn,
VARIANTARG *pvarargOut);
// IOleWindow
// (overriding CNSCBand implementation
STDMETHODIMP GetWindow(HWND *phwnd);
// IServiceProvider
STDMETHODIMP QueryService(REFGUID guidService, REFIID riid, VOID ** ppvObj);
// IInputObject
// (overriding CNSCBand/CToolBand's implementation)
STDMETHODIMP TranslateAcceleratorIO(LPMSG lpMsg);
STDMETHODIMP UIActivateIO(BOOL fActivate, LPMSG lpMsg);
STDMETHODIMP HasFocusIO();
// IDockingWindow
STDMETHODIMP ShowDW(BOOL fShow);
STDMETHODIMP CloseDW(DWORD dwReserved);
// IElementBehaviorFactory
STDMETHODIMP FindBehavior(BSTR bstrBehavior, BSTR bstrBehaviorUrl, IElementBehaviorSite* pSite, IElementBehavior** ppBehavior);
// IBrowserBand
STDMETHOD(GetObjectBB)(THIS_ REFIID riid, LPVOID *ppv);
STDMETHODIMP SetBrowserBandInfo(THIS_ DWORD dwMask, PBROWSERBANDINFO pbbi) { ASSERT(FALSE); return E_NOTIMPL; }
STDMETHODIMP GetBrowserBandInfo(THIS_ DWORD dwMask, PBROWSERBANDINFO pbbi) { ASSERT(FALSE); return E_NOTIMPL; }
// IBandNavigate
STDMETHOD(Select)(LPCITEMIDLIST pidl);
// IMediaHost
STDMETHOD(getMediaPlayer)(IUnknown **ppPlayer);
STDMETHOD(playURL)(BSTR bstrURL, BSTR bstrMIME);
STDMETHOD(addProxy)(IUnknown *pProxy);
STDMETHOD(removeProxy)(IUnknown *pProxy);
// IMediaHost2
STDMETHOD(OnDisableUIChanged)(BOOL fDisabled);
// IObjectWithSite
STDMETHODIMP SetSite(IUnknown* punkSite);
// IWinEventHandler
STDMETHODIMP OnWinEvent(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *plres);
STDMETHODIMP IsWindowOwner(HWND hwnd);
// IMediaBar
STDMETHOD(Notify)(long lReason);
STDMETHOD(OnMediaError)(int iErrCode);
// IDeskBand
STDMETHODIMP GetBandInfo(DWORD dwBandID, DWORD fViewMode,
DESKBANDINFO* pdbi);
// IPersistStream
STDMETHODIMP GetClassID(CLSID *pClassID);
STDMETHODIMP Load(IStream *pStm);
STDMETHODIMP Save(IStream *pStm, BOOL fClearDirty);
// IDispatch
STDMETHODIMP Invoke(
/* [in] */ DISPID dispIdMember,
/* [in] */ REFIID riid,
/* [in] */ LCID lcid,
/* [in] */ WORD wFlags,
/* [out][in] */ DISPPARAMS *pDispParams,
/* [out] */ VARIANT *pVarResult,
/* [out] */ EXCEPINFO *pExcepInfo,
/* [out] */ UINT *puArgErr);
// INamespaceWalkCB
STDMETHODIMP FoundItem(IShellFolder *psf, LPCITEMIDLIST pidl);
STDMETHODIMP EnterFolder(IShellFolder *psf, LPCITEMIDLIST pidl) { return S_OK; }
STDMETHODIMP LeaveFolder(IShellFolder *psf, LPCITEMIDLIST pidl) { return S_OK; }
STDMETHODIMP InitializeProgressDialog(LPWSTR *ppszTitle, LPWSTR *ppszCancel);
private:
~CMediaBand();
LRESULT _OnVolumeCustomDraw(LPNMCUSTOMDRAW pnm);
LRESULT _OnSeekBarCustomDraw(LPNMCUSTOMDRAW pnm);
BOOL EnsurePlayer();
BOOL CreatePlayer();
VOID DestroyPlayer();
STDMETHOD(_TogglePause)();
STDMETHOD(_PutUrl)(LPWSTR pstrUrl, LPWSTR pstrMime);
STDMETHOD(_EnumPlayItems)(VOID);
HRESULT CreateControls();
HRESULT CreateSeekBar();
HRESULT CreateVolumeControl();
HRESULT CreateParentPane();
HRESULT CreateLayoutPane();
HRESULT _NavigateMainWindow(LPCTSTR lpstrUrl, bool fSuppressFirstAutoPlay = false);
HRESULT InitPlayerPopup();
HWND GetBrowserWindow();
VOID _ResizeChildWindows(HWND hwnd, LONG width, LONG height, BOOL fRepaint);
HRESULT _InitializeMediaUI();
VOID _ResizeVideo(LONG* lWidth, LONG* lHeight);
VOID AdjustLayout(LONG_PTR lWidth=0,LONG_PTR lHeight=0);
VOID DrawBackground(HDC hdc, HWND hwnd);
LPTSTR GetUrlForStatusBarToolTip();
HRESULT _OpenInDefaultPlayer(BSTR bstrUrl);
VOID _ShowAllWindows(BOOL fShow);
HRESULT ShowPlayListMenu(HWND hwnd,RECTL* rc);
HRESULT ShowGenericMenu(HWND hwnd, RECTL* rc);
HRESULT HandleMenuTasks(INT iTask);
VOID ComputeMinMax(MINMAXINFO *pMinMax);
VOID DockMediaPlayer();
static INT_PTR CALLBACK s_PopupDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK s_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK s_LayoutWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK s_SeekWndSubClassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK s_VolumeWndSubClassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
static INT_PTR CALLBACK s_PromptMimeDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
HRESULT GetTrackTitle (BSTR* pbstrTitle);
VOID GetToolbarSize(HWND hwndTB, SIZE* pSize);
float GetSeekPos() ;
VOID SetSeekPos(float fPosition) ;
HRESULT Seek(double dblProgress);
VOID SetStatusText(LPWSTR lpwStatusInfo);
VOID ShowPlayingStatus(BOOL fInitial=FALSE);
VOID AdjustVideoHeight(BOOL fForceResize=FALSE);
VOID TogglePlayPause();
VOID ToggleMute();
LONG GetLayoutHeight(LONG lWidth=0);
LONG GetVideoHeight(LONG lWidth=0, BOOL fNewVideo=FALSE);
LONG GetControlsHeight();
// Menu helpers
HRESULT AddToFavorites(BSTR bstrUrl, BSTR bstrTitle);
HRESULT ResetMimePreferences();
BOOL PromptSettings(UINT IDPROMPT);
// Handler for property change notifications
VOID _OnTitleChange();
// Navigation timeout helpers
VOID _OnNavigationTimeOut();
VOID _UpdateTimeOutCounter(double dblCurrBufProgress, double dblCurrPlayProgress);
VOID _EndTimeOutCounter();
VOID _BeginTimeOutCounter(BOOL fClear = TRUE);
// per mime type checking stuff
VOID _HandleAutoPlay(VARIANTARG *pvarargMime, VARIANTARG *pvarargUrl);
STDMETHODIMP ProfferService(IUnknown *punkSite,
REFGUID sidWhat,
IServiceProvider *pService,
DWORD *pdwCookie);
public:
// mediabar behavior
// non-COM public calls
private:
HRESULT _AddProxyToList(IUnknown *punkProxy);
void _AttachPlayerToProxies(BOOL fAttach);
void _DetachProxies();
BOOL _isUIDisabled();
BOOL _isProxiesNextEnabled();
void _OnUserOverrideDisableUI();
void _FireEventToProxies(enum contentProxyEvent event);
void _CleanupStopTimer();
BOOL _IsProxyRunning(void) { return (_apContentProxies && (_apContentProxies.GetPtrCount() > 0)); }
HRESULT _EnsureWMPInstalled(BOOL fShowErrorMsg = TRUE);
BOOL _fAttached;
UINT_PTR _idStopTimer;
private:
double _dblMediaDur; // natural length of the media
int _iCurTrack;
PTSTR _pszStatus;
HWND _hwndVolume;
HWND _hwndSeek;
HWND _hwndPopup;
HWND _hwndVideo ;
HWND _hwndLayout;
HMENU _hPlayListMenu;
IMediaBarPlayer *_pMediaPlayer;
DWORD _dwCookieServiceMediaBar;
// navigation timeout
DWORD _dwStartTime;
LONG _lTickCount;
double _dblLastBufProgress;
double _dblLastPlayProgress;
SIZE _sizeLayout;
SIZE _sizeVideo ;
BOOL _fPlayButton:1 ;
BOOL _fSeeking:1; // We are seeking, so don't update the seekbar position while we seek.
BOOL _fIsVideo:1;
BOOL _fMuted:1;
BOOL _fVideoAdjust:1;
BOOL _fPlaying:1;
BOOL _fPlayEnabled:1;
BOOL _fInitialized:1;
BOOL _fHiColour:1;
BOOL _fUserPaused:1;
BOOL _fHighDPI:1;
float _scaleX, _scaleY;
CMediaWidget* _pmw[MW_NUMBER];
HIMAGELIST _himlGripper;
HBITMAP _hbmpBackground;
HIMAGELIST _himlVolumeBack, _himlVolumeFill;
HIMAGELIST _himlSeekBack, _himlSeekFill;
HBRUSH _hbrSeekBrush;
VOID Resize(HWND hwnd, LONG lWidth, LONG lHeight);
LONG GetPopoutHeight(BOOL fVideo=FALSE, LONG lWidth=0);
LONG GetMinPopoutWidth();
BOOL ResetPlayer();
HRESULT PlayLocalTrack(INT iTrackNum);
HRESULT PlayNextTrack();
BOOL SetPlayerControl(UINT ui, BOOL fState);
BOOL UpdateBackForwardControls();
VOID UpdateMenuItems(HMENU hmenu);
LPTSTR _szToolTipUrl;
BOOL OnNotify(LPNMHDR pnm, LRESULT* plres);
VOID SetPlayPause(BOOL fState);
VOID SwitchBitmaps(BOOL fNewSetting);
HRESULT _GetMusicFromFolder();
void _ClearFolderItems();
LPITEMIDLIST *_ppidls;
UINT _cidls;
INT _iElement;
double _dblVol;
TCHAR _szConnecting[MAX_PATH];
INT _iOptionsWidth;
CComBSTR _strLastUrl;
CComBSTR _strLastMime;
BOOL _fLastUrlIsAutoPlay;
// Content pane
HWND _hwndContent;
DWORD _dwcpCookie;
CComPtr<IWebBrowser2> _spBrowser;
CComBSTR _strDeferredURL;
CComBSTR _strCurrentContentUrl;
CComPtr<IOleInPlaceActiveObject> _poipao;
BOOL _fContentInFocus;
VOID InitContentPane();
HRESULT NavigateContentPane(BSTR bstrUrl);
HRESULT NavigateContentPane(LPCITEMIDLIST pidl);
VOID NavigateMoreMedia();
HRESULT _NavigateContentToDefaultURL(void);
HRESULT _ConnectToCP(BOOL fConnect);
HRESULT _BuildPageURLWithParam(LPCTSTR pszURL, LPCTSTR pszParam, OUT LPTSTR pszBuffer, UINT uiBufSize);
BOOL _DeferredNavigate(LPCTSTR pszURL);
HRESULT _ContentActivateIO(BOOL fActivate, PMSG pMsg);
LRESULT _OnNotify(LPNMHDR pnm);
BOOL _fSavedPopoutState;
WINDOWPLACEMENT _wpPopout;
BOOL _fPopoutHasFocus;
void ActivatePopout(BOOL fState);
HKEY _hkeyWMP;
BOOL _fShow;
// mediaBehavior
CDPA<IContentProxy> _apContentProxies;
};
#define _pmwPlay ((CMediaWidgetButton*)_pmw[MW_PLAY])
#define _pmwStop ((CMediaWidgetButton*)_pmw[MW_STOP])
#define _pmwBack ((CMediaWidgetButton*)_pmw[MW_BACK])
#define _pmwNext ((CMediaWidgetButton*)_pmw[MW_NEXT])
#define _pmwMute ((CMediaWidgetToggle*)_pmw[MW_MUTE])
#define _pmwVolume ((CMediaWidgetVolume*)_pmw[MW_VOLUME])
#define _pmwOptions ((CMediaWidgetOptions*)_pmw[MW_OPTIONS])
#define _pmwPop ((CMediaWidgetButton*)_pmw[MW_POP])
#define _pmwSeek ((CMediaWidgetSeek*)_pmw[MW_SEEK])
#define ISVALIDWIDGET(x) (x && x->_hwnd)
#endif // __MEDIABAND_H_