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|
{player service}
unit srv_player;
interface
uses windows,common,wat_api;
// init/free procedures
function ProcessPlayerLink:integer;
procedure ClearPlayers;
// miranda-style function for new player registering
function ServicePlayer(wParam:WPARAM;lParam:LPARAM):int_ptr;cdecl;
// next 2 functions are public coz in watrack they going with GetAddonFileName funcion
// which uses some miranda things
function SetPlayerIcons(fname:pAnsiChar):integer;
function LoadFromFile(fname:PAnsiChar):integer;
function SendCommand(wParam:WPARAM;lParam:LPARAM;flags:integer):int_ptr;
// options procedures
procedure DefFillPlayerList (hwndList:HWND);
procedure DefCheckPlayerList(hwndList:HWND);
type
MusEnumProc = function(param:PAnsiChar;lParam:LPARAM):bool;stdcall;
function EnumPlayers(param:MusEnumProc;lParam:LPARAM):bool;
function GetPlayerNote(name:PAnsiChar):pWideChar;
function CheckAllPlayers(flags:integer;var status:integer; var PlayerChanged:bool):HWND;
function GetActivePlayer:pPlayerCell;
type
pTmplCell = ^tTmplCell;
tTmplCell = record
p_class,
p_text :PAnsiChar;
p_class1,
p_text1 :PAnsiChar;
p_file :PAnsiChar;
p_prefix :pWideChar;
p_postfix:pWideChar;
end;
type
pwPlayer = ^twPlayer;
twPlayer = record
This:pPlayerCell;
Next:pwPlayer;
end;
const
PlayerLink:pwPlayer=nil;
implementation
uses
CommCtrl, shellapi,
appcmdapi,winampapi,memini,syswin;
type
pPlyArray = ^tPlyArray;
tPlyArray = array [0..10] of tPlayerCell;
const
StartSize = 32;
Step = 8;
buflen = 2048;
const
plyLink:pPlyArray=nil;
PlyNum:integer=0;
PlyMax:integer=0;
//----- Support functions -----
procedure PreProcess; // BASS to start
var
i:integer;
tmp:tPlayerCell;
begin
i:=1;
while i<(PlyNum-1) do
begin
if (plyLink^[i].flags and WAT_OPT_FIRST)<>0 then
begin
tmp:=plyLink^[i];
move(plyLink^[0],plyLink^[1],SizeOf(tPlayerCell)*i);
plyLink^[0]:=tmp;
break;
end;
inc(i);
end;
if (plyLink^[0].flags and WAT_OPT_LAST)<>0 then
begin
tmp:=plyLink^[0];
move(plyLink^[1],plyLink^[0],SizeOf(tPlayerCell)*(PlyNum-1));
plyLink^[PlyNum-1]:=tmp;
end;
end;
procedure PostProcess; // Winamp clone to the end
var
i,j:integer;
tmp:tPlayerCell;
begin
i:=1;
j:=PlyNum-1;
while i<j do
begin
if (plyLink^[i].flags and WAT_OPT_LAST)<>0 then
begin
tmp:=plyLink^[i];
move(plyLink^[i+1],plyLink^[i],SizeOf(tPlayerCell)*(PlyNum-i-1));
plyLink^[PlyNum-1]:=tmp;
i:=1;
dec(j);
continue;
end;
inc(i);
end;
end;
function FindPlayer(desc:PAnsiChar):integer;
var
i:integer;
begin
if (desc<>nil) and (desc^<>#0) then
begin
i:=0;
while i<PlyNum do
begin
if lstrcmpia(plyLink^[i].Desc,desc)=0 then
begin
result:=i;
exit;
end;
inc(i);
end;
end;
result:=WAT_RES_NOTFOUND;
end;
//----- public functions -----
function GetActivePlayer:pPlayerCell;
begin
result:=@plyLink^[0];
end;
function EnumPlayers(param:MusEnumProc;lParam:LPARAM):bool;
var
tmp:pPlyArray;
i,j:integer;
begin
if (PlyNum>0) and (@param<>nil) then
begin
GetMem(tmp,PlyNum*SizeOf(tPlayerCell));
move(PlyLink^,tmp^,PlyNum*SizeOf(tPlayerCell));
i:=0;
j:=PlyNum;
repeat
if not param(tmp^[i].Desc,lParam) then break;
inc(i);
until i=j;
FreeMem(tmp);
result:=true;
end
else
result:=false;
end;
function GetPlayerNote(name:PAnsiChar):pWideChar;
var
i:integer;
begin
i:=FindPlayer(name);
if i>=0 then
result:=plyLink^[i].Notes
else
result:=nil;
end;
//----- Init/free -----
procedure ClearTemplate(tmpl:pTmplCell);
begin
with tmpl^ do
begin
mFreeMem(p_class);
mFreeMem(p_text);
mFreeMem(p_class1);
mFreeMem(p_text1);
mFreeMem(p_file);
mFreeMem(p_prefix);
mFreeMem(p_postfix);
end;
FreeMem(tmpl);
end;
function ServicePlayer(wParam:WPARAM;lParam:LPARAM):int_ptr;cdecl;
var
p:integer;
i:integer;
nl:pPlyArray;
tmp:tPlayerCell;
begin
result:=WAT_RES_ERROR;
if LoWord(wParam)=WAT_ACT_REGISTER then
begin
if pPlayerCell(lParam)^.Check=nil then
exit;
p:=FindPlayer(pPlayerCell(lParam)^.Desc);
if (p=WAT_RES_NOTFOUND) or ((wParam and WAT_ACT_REPLACE)<>0) then
begin
if (p<>WAT_RES_NOTFOUND) and ((plyLink^[p].flags and WAT_OPT_ONLYONE)<>0) then
exit;
if p=WAT_RES_NOTFOUND then
begin
p:=PlyNum;
result:=WAT_RES_OK;
if PlyNum=PlyMax then // expand array when append
begin
if PlyMax=0 then
PlyMax:=StartSize
else
inc(PlyMax,Step);
GetMem(nl,PlyMax*SizeOf(tPlayerCell));
if plyLink<>nil then
begin
move(plyLink^,nl^,PlyNum*SizeOf(tPlayerCell));
FreeMem(plyLink);
end;
plyLink:=nl;
end;
FillChar(plyLink^[p],SizeOf(tPlayerCell),0);
// doubling notes
if (pPlayerCell(lParam)^.Notes<>nil) and
((pPlayerCell(lParam)^.flags and WAT_OPT_TEMPLATE)=0) then
begin
i:=(StrLenW(pPlayerCell(lParam)^.Notes)+1)*SizeOf(WideChar);
GetMem(plyLink^[p].Notes,i);
move(pPlayerCell(lParam)^.Notes^,plyLink^[p].Notes^,i);
end
else
plyLink^[p].Notes:=pPlayerCell(lParam)^.Notes;
// doubling description
i:=StrLen(pPlayerCell(lParam)^.Desc)+1;
GetMem(plyLink^[p].Desc,i);
move(pPlayerCell(lParam)^.Desc^,plyLink^[p].Desc^,i);
// doubling url
if pPlayerCell(lParam)^.URL<>nil then
begin
with plyLink^[p] do
begin
i:=StrLen(pPlayerCell(lParam)^.URL)+1;
GetMem(URL,i);
move(pPlayerCell(lParam)^.URL^,URL^,i);
end;
end
else
plyLink^[p].URL:=nil;
inc(PlyNum);
end
else // existing player
begin
if (plyLink^[p].flags and WAT_OPT_TEMPLATE)=0 then
result:=int_ptr(plyLink^[p].Check)
else
begin // remove any info from templates
result:=WAT_RES_OK;
ClearTemplate(pTmplCell(plyLink^[p].Check));
end;
end;
// fill info
with plyLink^[p] do
begin
flags:=pPlayerCell(lParam)^.flags;
if URL<>nil then
flags:=flags or WAT_OPT_HASURL;
if pPlayerCell(lParam)^.Icon<>0 then
begin
if icon<>0 then
DestroyIcon(icon);
icon:=CopyIcon(pPlayerCell(lParam)^.Icon);
end;
Init :=pPlayerCell(lParam)^.Init;
DeInit :=pPlayerCell(lParam)^.DeInit;
Check :=pPlayerCell(lParam)^.Check;
GetStatus:=pPlayerCell(lParam)^.GetStatus;
GetName :=pPlayerCell(lParam)^.GetName;
GetInfo :=pPlayerCell(lParam)^.GetInfo;
Command :=pPlayerCell(lParam)^.Command;
if Init<>nil then
tInitProc(Init);
end;
// PreProcess;
PostProcess;
end;
end
else
begin
p:=FindPlayer(PAnsiChar(lParam));
if p<>WAT_RES_NOTFOUND then
case LoWord(wParam) of
WAT_ACT_UNREGISTER: begin
dec(PlyNum);
if plyLink^[p].DeInit<>nil then
tDeInitProc(plyLink^[p].DeInit);
FreeMem(plyLink^[p].Desc);
if (plyLink^[p].flags and WAT_OPT_TEMPLATE)<>0 then
ClearTemplate(pTmplCell(plyLink^[p].Check));
if p<PlyNum then // not last
Move(plyLink^[p+1],plyLink^[p],SizeOf(tPlayerCell)*(PlyNum-p));
result:=WAT_RES_OK;
end;
WAT_ACT_DISABLE: begin
plyLink^[p].flags:=plyLink^[p].flags or WAT_OPT_DISABLED;
result:=WAT_RES_DISABLED;
end;
WAT_ACT_ENABLE: begin
plyLink^[p].flags:=plyLink^[p].flags and not WAT_OPT_DISABLED;
result:=WAT_RES_ENABLED;
end;
WAT_ACT_GETSTATUS: begin
if (plyLink^[p].flags and WAT_OPT_DISABLED)<>0 then
result:=WAT_RES_DISABLED
else
result:=WAT_RES_ENABLED;
end;
WAT_ACT_SETACTIVE: begin
if p>0 then
begin
tmp:=plyLink^[p];
move(plyLink^[0],plyLink^[1],SizeOf(tPlayerCell)*p);
plyLink^[0]:=tmp;
end;
// PreProcess;
// PostProcess;
end;
end;
end;
end;
function ProcessPlayerLink:integer;
var
ptr:pwPlayer;
begin
ptr:=PlayerLink;
result:=0;
while ptr<>nil do
begin
ServicePlayer(WAT_ACT_REGISTER,lparam(ptr.This));
ptr:=ptr^.Next;
inc(result);
end;
end;
procedure ClearPlayers;
begin
if PlyNum>0 then
begin
repeat
dec(PlyNum);
with plyLink^[PlyNum] do
begin
if DeInit<>nil then
tDeInitProc(DeInit);
FreeMem(Desc);
if URL<>nil then
FreeMem(URL);
if icon<>0 then
DestroyIcon(icon);
if (flags and WAT_OPT_TEMPLATE)<>0 then
begin
ClearTemplate(pTmplCell(Check));
mFreeMem(Notes);
end
else if Notes<>nil then
FreeMem(Notes);
end;
until PlyNum=0;
FreeMem(plyLink);
end;
end;
function LoadFromFile(fname:PAnsiChar):integer;
var
buf:pAnsiChar;
ptr:PAnsiChar;
NumPlayers:integer;
pcell:pTmplCell;
rec:tPlayerCell;
st,sec:pointer;
begin
result:=0;
st:=OpenStorage(fname);
if st=nil then exit;
buf:=GetSectionList(st);
ptr:=buf;
NumPlayers:=0;
while ptr^<>#0 do
begin
sec:=SearchSection(st,ptr);
FillChar(rec,SizeOf(rec),0);
GetMem(pcell,SizeOf(tTmplCell));
StrDup(pcell^.p_class ,GetParamSectionStr(sec,'class' ));
StrDup(pcell^.p_text ,GetParamSectionStr(sec,'text' ));
StrDup(pcell^.p_class1,GetParamSectionStr(sec,'class1'));
StrDup(pcell^.p_text1 ,GetParamSectionStr(sec,'text1' ));
StrDup(pcell^.p_file ,GetParamSectionStr(sec,'file' ));
AnsiToWide(GetParamSectionStr(sec,'prefix' ),pcell^.p_prefix );
AnsiToWide(GetParamSectionStr(sec,'postfix'),pcell^.p_postfix);
rec.URL :=GetParamSectionStr(sec,'url');
rec.Desc :=ptr;
rec.flags:=GetParamSectionInt(sec,'flags') or WAT_OPT_TEMPLATE;
rec.Check:=pointer(pcell);
UTF8ToWide(GetParamSectionStr(sec,'notes'),rec.Notes);
if ServicePlayer(WAT_ACT_REGISTER,lparam(@rec))=WAT_RES_ERROR then
begin
ClearTemplate(pcell);
// mFreeMem(rec.URL);
mFreeMem(rec.Notes);
end
else
inc(NumPlayers);
while ptr^<>#0 do inc(ptr);
inc(ptr);
end;
FreeSectionList(buf);
CloseStorage(st);
result:=NumPlayers;
end;
function SetPlayerIcons(fname:pAnsiChar):integer;
var
i,j:integer;
buf:array [0..255] of AnsiChar;
p,pp:pAnsiChar;
lhIcon:HICON;
begin
result:=LoadLibraryA(fname);
if result<>0 then
begin
p:=StrCopyE(buf,'Player_');
i:=0;
while i<PlyNum do
begin
with plyLink^[i] do
begin
pp:=p;
for j:=0 to StrLen(Desc)-1 do
begin
if Desc[j] in sLatWord then
pp^:=UpCase(Desc[j])
else
pp^:='_';
inc(pp);
end;
pp^:=#0;
lhIcon:=LoadImageA(result,buf,IMAGE_ICON,16,16,0);
if lhIcon>0 then
begin
if Icon<>0 then
DestroyIcon(Icon);
Icon:=lhIcon;
end;
end;
inc(i);
end;
FreeLibrary(result);
end;
end;
//----- options procedures -----
procedure DefFillPlayerList(hwndList:HWND);
var
item:LV_ITEMA;
lvc:TLVCOLUMN;
i,newItem:integer;
il:HIMAGELIST; //!!
begin
FillChar(item,SizeOf(item),0);
FillChar(lvc,SizeOf(lvc),0);
ListView_SetExtendedListViewStyle(hwndList, LVS_EX_CHECKBOXES);
lvc.mask:=LVCF_FMT or LVCF_WIDTH;
lvc.fmt:=LVCFMT_LEFT;
lvc.cx:=160;
ListView_InsertColumn(hwndList,0,lvc);
item.mask:=LVIF_TEXT or LVIF_IMAGE; //!!
i:=0;
il:=ImageList_Create(16,16,ILC_COLOR32 or ILC_MASK,0,1); //!!
while i<PlyNum do
begin
item.iImage:=ImageList_AddIcon(il,plyLink^[i].Icon);
item.iItem:=i;
item.pszText:=plyLink^[i].Desc;
newItem:=SendMessageA(hwndList,LVM_INSERTITEMA,0,lparam(@item));
if newItem>=0 then
begin
if (plyLink^[i].flags and WAT_OPT_DISABLED)=0 then
ListView_SetCheckState(hwndList,newItem,TRUE);
end;
inc(i);
end;
ImageList_Destroy(SendMessage(hwndList,LVM_SETIMAGELIST,LVSIL_SMALL,il)); //!!
// ListView_SetColumnWidth(hwndList,0,LVSCW_AUTOSIZE);
end;
procedure DefCheckPlayerList(hwndList:HWND);
var
i,j,k:integer;
item:LV_ITEMA;
szTemp:array [0..109] of AnsiChar;
p:pPlayerCell;
begin
FillChar(item,SizeOf(item),0);
item.mask :=LVIF_TEXT;
item.pszText :=@szTemp;
item.cchTextMax:=100;
k:=ListView_GetItemCount(hwndList)-1;
for i:=0 to k do
begin
item.iItem:=i;
SendMessageA(hwndList,LVM_GETITEMA,0,lparam(@item));
j:=FindPlayer(item.pszText);
if j<>WAT_RES_NOTFOUND then
begin
p:=@plyLink^[j];
if ListView_GetCheckState(hwndList,i)=0 then
p^.flags:=p^.flags or WAT_OPT_DISABLED
else
p^.flags:=p^.flags and not WAT_OPT_DISABLED;
end;
end;
end;
//----- Active player search -----
function CheckTmpl(lwnd:HWND;cell:pTmplCell;flags:integer):HWND;
var
tmp,EXEName:PAnsiChar;
lclass,ltext:PAnsiChar;
ltmp,lcycle:boolean;
begin
lclass:=cell.p_class;
ltext :=cell.p_text;
lcycle:=false;
repeat
result:=lwnd;
if (lclass<>nil) or (ltext<>nil) then
repeat
result:=FindWindowExA(0,result,lclass,ltext);
if result=0 then
break;
// check filename
if cell.p_file<>NIL then
begin
tmp:=Extract(GetEXEByWnd(result,EXEName),true);
mFreeMem(EXEName);
ltmp:=lstrcmpia(tmp,cell.p_file)=0;
mFreeMem(tmp);
if not ltmp then
continue;
end;
exit;
until false;
// repeat for alternative window
if lcycle then break;
lclass:=cell.p_class1;
ltext :=cell.p_text1;
if (lclass=nil) and (ltext=nil) then break;
lcycle:=not lcycle;
until false;
end;
// find active player
function CheckAllPlayers(flags:integer;var status:integer; var PlayerChanged:bool):HWND;
const
PrevPlayerName:PAnsiChar=nil;
var
wwnd,lwnd:HWND;
tmp:tPlayerCell;
fname:pWideChar;
stat,act,oldstat,i,j:integer;
begin
result:=HWND(WAT_RES_NOTFOUND);
i:=0;
PlayerChanged:=true;
PreProcess;
oldstat:=-1;
act:=-1;
// for case when no any player enabled/registered
stat:=WAT_PLS_UNKNOWN;
wwnd:=0;
while i<PlyNum do
begin
if (plyLink^[i].flags and WAT_OPT_DISABLED)=0 then
begin
lwnd:=0;
repeat
wwnd:=0;
stat:=WAT_PLS_UNKNOWN;
// template player
if (plyLink^[i].flags and WAT_OPT_TEMPLATE)<>0 then
begin
lwnd:=CheckTmpl(lwnd,plyLink^[i].Check,plyLink^[i].flags);
// find "Winamp" window
if (lwnd<>THANDLE(WAT_RES_NOTFOUND)) and (lwnd<>0) and
((plyLink^[i].flags and WAT_OPT_WINAMPAPI)<>0) then
begin
wwnd:=WinampFindWindow(lwnd);
if wwnd<>0 then
stat:=WinampGetStatus(wwnd);
end;
end
// separate processing
else
begin
with plyLink^[i] do
begin
lwnd:=tCheckProc(Check)(lwnd,flags);
if (lwnd<>THANDLE(WAT_RES_NOTFOUND)) and (lwnd<>0) and (GetStatus<>nil) then
stat:=tStatusProc(GetStatus)(lwnd);
end;
end;
// player window found
if (lwnd<>THANDLE(WAT_RES_NOTFOUND)) and (lwnd<>0) then
begin
if (stat=WAT_PLS_PLAYING) or ((flags and WAT_OPT_CHECKALL)=0) then
begin
act :=i;
result:=lwnd;
break;
end
else
begin
case stat of
WAT_PLS_STOPPED: j:=00;
WAT_PLS_UNKNOWN: j:=10;
WAT_PLS_PAUSED : j:=20;
else
j:=00;
end;
if oldstat<j then
begin
oldstat:=j;
act :=i;
result :=lwnd;
end;
end;
end
else
break;
if (plyLink^[i].flags and WAT_OPT_SINGLEINST)<>0 then
break;
until false;
if (result<>HWND(WAT_RES_NOTFOUND)) and (result<>0) and
((stat=WAT_PLS_PLAYING) or ((flags and WAT_OPT_CHECKALL)=0)) then
break;
end;
inc(i);
end;
// hmm, we found player
if act>=0 then
begin
if result=1 then result:=0 //!! for example, mradio
else if wwnd<>0 then
result:=wwnd;
if act>0 then // to first position
begin
tmp:=plyLink^[act];
move(plyLink^[0],plyLink^[1],SizeOf(tPlayerCell)*act);
plyLink^[0]:=tmp;
end;
if PrevPlayerName=plyLink^[0].Desc then
PlayerChanged:=false
else
begin
PrevPlayerName:=plyLink^[0].Desc;
// get player icon if didn't has it before
if (plyLink^[0].icon=0) and (result>0) then
begin
if GetEXEByWnd(result,fname)<>nil then
begin
plyLink^[0].icon:=ExtractIconW(hInstance,fname,0);
if plyLink^[0].icon=1 then
plyLink^[0].icon:=0;
mFreeMem(fname);
end;
end;
end;
status:=stat;
end
else
begin
PrevPlayerName:=nil;
status:=WAT_PLS_NOTFOUND;
end;
PostProcess;
end;
//----- Send command to player -----
function TranslateToApp(code:integer):integer;
begin
case code of
WAT_CTRL_PREV : result:=APPCOMMAND_MEDIA_PREVIOUSTRACK;
WAT_CTRL_PLAY : begin
if IsW2K then // Win2k+ only
result:=APPCOMMAND_MEDIA_PLAY_PAUSE
else
result:=APPCOMMAND_MEDIA_PLAY;
end;
WAT_CTRL_PAUSE: result:=APPCOMMAND_MEDIA_PLAY_PAUSE;
WAT_CTRL_STOP : result:=APPCOMMAND_MEDIA_STOP;
WAT_CTRL_NEXT : result:=APPCOMMAND_MEDIA_NEXTTRACK;
WAT_CTRL_VOLDN: result:=APPCOMMAND_VOLUME_DOWN;
WAT_CTRL_VOLUP: result:=APPCOMMAND_VOLUME_UP;
else
result:=-1;
end;
end;
function SendCommand(wParam:WPARAM;lParam:LPARAM;flags:integer):int_ptr;
var
dummy:bool;
wnd:HWND;
lstat:integer;
begin
result:=WAT_RES_ERROR;
wnd:=CheckAllPlayers(flags,lstat,dummy);
if wnd<>THANDLE(WAT_RES_NOTFOUND) then
if plyLink^[0].Command<>nil then
result:=tCommandProc(plyLink^[0].Command)(wnd,wParam,lParam)
else if (plyLink^[0].flags and WAT_OPT_WINAMPAPI)<>0 then
result:=WinampCommand(wnd,wParam+(lParam shl 16))
else if (flags and WAT_OPT_APPCOMMAND)<>0 then
begin
result:=TranslateToApp(wParam);
if result>=0 then
result:=SendMMCommand(wnd,result);
end;
end;
end.
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