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cwUi.cpp: Received 'value' messages are now automatically reflected to other Websock sessions.

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The idle message is now sent to the client only when no other message has been send for 'idle_delay_ms'.
Added createFromRsrc().
The resource object passed via create() is now duplicated and maintained for the life of the UI object.
This commit is contained in:
kevin 2022-12-13 16:53:10 -05:00
parent f0e6a56a60
commit 445c5d5076
2 changed files with 215 additions and 81 deletions
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157
cwUi.cpp
View File

@ -2,6 +2,7 @@
#include "cwLog.h"
#include "cwCommonImpl.h"
#include "cwMem.h"
#include "cwTime.h"
#include "cwFileSys.h"
#include "cwThread.h"
#include "cwObject.h"
@ -90,6 +91,7 @@ namespace cw
unsigned recvBufN;
unsigned recvBufIdx;
unsigned recvShiftN;
object_t* uiRsrc;
unsigned* sessA; // sessA[ sessN ] array of wsSessId's
unsigned sessN;
@ -141,6 +143,7 @@ namespace cw
rc_t rc = kOkRC;
// free each element
if( p->eleA != nullptr )
for(unsigned i=0; i<p->eleN; ++i)
_destroy_element( p->eleA[i] );
@ -159,6 +162,9 @@ namespace cw
mem::release(p->buf);
mem::release(p->recvBuf);
if( p->uiRsrc != nullptr )
p->uiRsrc->free();
mem::release(p);
return rc;
@ -605,7 +611,7 @@ namespace cw
rc = kOkRC;
else
{
rc = cwLogError(rc,"The UI element name could not be read.");
rc = cwLogError(rc,"The UI element 'name' could not be read.");
goto errLabel;
}
@ -978,13 +984,59 @@ namespace cw
if( snprintf(mbuf,mbufN,mFmt,opStr,uuId,vbuf) >= mbufN-1 )
return cwLogError(kBufTooSmallRC,"The msg buffer is too small.");
//p->sendCbFunc(p->sendCbArg,wsSessId,mbuf,strlen(mbuf));
_websockSend(p,wsSessId,mbuf);
}
return rc;
}
rc_t _sendValue( ui_t* p, unsigned wsSessId, unsigned uuId, const value_t& value )
{
rc_t rc = kOkRC;
switch( value.tid )
{
case kBoolTId:
rc = _sendValue<int>(p,wsSessId,uuId,"%i",value.u.b?1:0);
break;
case kIntTId:
rc = _sendValue<int>(p,wsSessId,uuId,"%i",value.u.i);
break;
case kUIntTId:
rc = _sendValue<unsigned>(p,wsSessId,uuId,"%i",value.u.u);
break;
case kFloatTId:
rc = _sendValue<float>(p,wsSessId,uuId,"%f",value.u.f);
break;
case kDoubleTId:
rc = _sendValue<double>(p,wsSessId,uuId,"%f",value.u.d);
break;
case kStringTId:
rc = _sendValue<const char*>(p,kInvalidId,uuId,"\"%s\"",value.u.s,"value",strlen(value.u.s)+10);
break;
default:
assert(0);
}
return rc;
}
void _reflect_value_msg( ui_t* p, unsigned wsSessId, ele_t* ele, const value_t& value )
{
// send a 'value' message to all sessions except 'wsSessId'.
for(unsigned i=0; i<p->sessN; ++i)
if( p->sessA[i] != wsSessId )
_sendValue(p,p->sessA[i],ele->uuId, value );
}
rc_t _onNewRemoteUi( ui_t* p, unsigned wsSessId )
{
rc_t rc = kOkRC;
@ -1138,6 +1190,7 @@ cw::rc_t cw::ui::create(
p->recvBufN = fmtBufByteN;
p->recvBufIdx = 0;
p->recvShiftN = 0;
p->uiRsrc = uiRsrc->duplicate();
// create the root element
if((ele = _createBaseEle(p, nullptr, kRootAppId, kInvalidId, "uiDivId" )) == nullptr || ele->uuId != kRootUuId )
@ -1151,9 +1204,13 @@ cw::rc_t cw::ui::create(
goto errLabel;
if( uiRsrc != nullptr )
if((rc = _createFromObj( p, uiRsrc, kInvalidId, kRootUuId, kInvalidId )) != kOkRC )
rc = cwLogError(rc,"Create from UI resource failed.");
{
const object_t* main_obj = nullptr;
if((main_obj = uiRsrc->find( "main")) != nullptr )
if((rc = _createFromObj( p, main_obj, kInvalidId, kRootUuId, kInvalidId )) != kOkRC )
rc = cwLogError(rc,"Create from UI resource failed.");
}
h.set(p);
@ -1238,6 +1295,7 @@ cw::rc_t cw::ui::onDisconnect( handle_t h, unsigned wsSessId )
return kOkRC;
}
cw::rc_t cw::ui::onReceive( handle_t h, unsigned wsSessId, const void* void_msg, unsigned msgByteN )
{
rc_t rc = kOkRC;
@ -1297,7 +1355,6 @@ cw::rc_t cw::ui::onReceive( handle_t h, unsigned wsSessId, const void* void_msg,
// parse the 'opId' from the message
opId = _labelToOpId(msg);
switch( opId )
{
case kInitOpId:
@ -1315,6 +1372,9 @@ cw::rc_t cw::ui::onReceive( handle_t h, unsigned wsSessId, const void* void_msg,
{
p->uiCbFunc( p->uiCbArg, wsSessId, opId, ele->logical_parent->appId, ele->uuId, ele->appId, ele->chanId, &value );
// reflect the UI element value state to other wsSessions
_reflect_value_msg( p, wsSessId, ele, value );
}
break;
@ -1367,6 +1427,8 @@ cw::rc_t cw::ui::onReceive( handle_t h, unsigned wsSessId, const void* void_msg,
} // switch opId
}
errLabel:
return rc;
}
@ -1520,6 +1582,22 @@ cw::rc_t cw::ui::createFromText( handle_t h, const char* text, unsigned parentU
return rc;
}
cw::rc_t cw::ui::createFromRsrc( handle_t h, const char* label, unsigned parentUuId, unsigned chanId)
{
ui_t* p = _handleToPtr(h);
rc_t rc = kOkRC;
if( p->uiRsrc == nullptr )
rc = cwLogError(kInvalidStateRC,"The UI resource '%s' was not found because the UI sub-system was not given a resource file.",cwStringNullGuard(label));
else
rc = createFromObject( h, p->uiRsrc, parentUuId, chanId, label );
return rc;
}
cw::rc_t cw::ui::createDiv( handle_t h, unsigned& uuIdRef, unsigned parentUuId, const char* eleName, unsigned appId, unsigned chanId, const char* clas, const char* title )
{ return _createOneEle( _handleToPtr(h), uuIdRef, "div", kInvalidId, parentUuId, eleName, appId, chanId, clas, title ); }
@ -1851,39 +1929,64 @@ cw::rc_t cw::ui::registerAppIdMap( handle_t h, const appIdMap_t* map, unsigned
cw::rc_t cw::ui::sendValueBool( handle_t h, unsigned uuId, bool value )
{
ui_t* p = _handleToPtr(h);
return _sendValue<int>(p,kInvalidId,uuId,"%i",value?1:0);
value_t v = { .tid=kBoolTId };
v.u.b = value;
return _sendValue(p,kInvalidId,uuId,v);
//return _sendValue<int>(p,kInvalidId,uuId,"%i",value?1:0);
}
cw::rc_t cw::ui::sendValueInt( handle_t h, unsigned uuId, int value )
{
ui_t* p = _handleToPtr(h);
return _sendValue<int>(p,kInvalidId,uuId,"%i",value);
value_t v = { .tid=kIntTId };
v.u.i = value;
return _sendValue(p,kInvalidId,uuId,v);
//return _sendValue<int>(p,kInvalidId,uuId,"%i",value);
}
cw::rc_t cw::ui::sendValueUInt( handle_t h, unsigned uuId, unsigned value )
{
ui_t* p = _handleToPtr(h);
return _sendValue<unsigned>(p,kInvalidId,uuId,"%i",value);
value_t v = { .tid=kUIntTId };
v.u.u = value;
return _sendValue(p,kInvalidId,uuId,v);
//return _sendValue<unsigned>(p,kInvalidId,uuId,"%i",value);
}
cw::rc_t cw::ui::sendValueFloat( handle_t h, unsigned uuId, float value )
{
ui_t* p = _handleToPtr(h);
return _sendValue<float>(p,kInvalidId,uuId,"%f",value);
value_t v = { .tid=kFloatTId };
v.u.f = value;
return _sendValue(p,kInvalidId,uuId,v);
//return _sendValue<float>(p,kInvalidId,uuId,"%f",value);
}
cw::rc_t cw::ui::sendValueDouble( handle_t h, unsigned uuId, double value )
{
ui_t* p = _handleToPtr(h);
return _sendValue<double>(p,kInvalidId,uuId,"%f",value);
value_t v = { .tid=kDoubleTId };
v.u.d = value;
return _sendValue(p,kInvalidId,uuId,v);
//return _sendValue<double>(p,kInvalidId,uuId,"%f",value);
}
cw::rc_t cw::ui::sendValueString( handle_t h, unsigned uuId, const char* value )
{
ui_t* p = _handleToPtr(h);
value_t v = { .tid=kStringTId };
v.u.s = value;
return _sendValue(p,kInvalidId,uuId,v);
// +10 allows for extra value buffer space for double quotes and slashed
return _sendValue<const char*>(p,kInvalidId,uuId,"\"%s\"",value,"value",strlen(value)+10);
//return _sendValue<const char*>(p,kInvalidId,uuId,"\"%s\"",value,"value",strlen(value)+10);
}
void cw::ui::report( handle_t h )
@ -1928,6 +2031,8 @@ namespace cw
uiCallback_t uiCbFunc;
websock::cbFunc_t wsCbFunc;
unsigned wsTimeOutMs;
unsigned idleMsgPeriodMs;
time::spec_t lastRecvMsgTimeStamp;
} ui_ws_t;
ui_ws_t* _handleToPtr( handle_t h )
@ -1969,12 +2074,15 @@ namespace cw
default:
cwLogError(kInvalidIdRC,"An invalid websock msgTypeId (%i) was encountered",msg_type);
}
time::get(p->lastRecvMsgTimeStamp);
}
rc_t _webSockSend( void* cbArg, unsigned wsSessId, const void* msg, unsigned msgByteN )
{
ui_ws_t* p = static_cast<ui_ws_t*>(cbArg);
return websock::send( p->wsH, kUiProtocolId, kInvalidId, msg, msgByteN );
return websock::send( p->wsH, kUiProtocolId, wsSessId, msg, msgByteN );
}
}
@ -1998,8 +2106,15 @@ cw::rc_t cw::ui::ws::parseArgs( const object_t& o, args_t& args, const char* ob
return cwLogError(kLabelNotFoundRC,"The ui configuration label '%s' was not found.", cwStringNullGuard(object_label));
if((rc = op->getv(
"physRootDir", args.physRootDir, "dfltPageFn", args.dfltPageFn, "port", args.port, "rcvBufByteN", args.rcvBufByteN,
"xmtBufByteN", args.xmtBufByteN, "fmtBufByteN", args.fmtBufByteN, "websockTimeOutMs", args.wsTimeOutMs, "uiCfgFn", uiCfgFn )) != kOkRC )
"physRootDir", args.physRootDir,
"dfltPageFn", args.dfltPageFn,
"port", args.port,
"rcvBufByteN", args.rcvBufByteN,
"xmtBufByteN", args.xmtBufByteN,
"fmtBufByteN", args.fmtBufByteN,
"websockTimeOutMs", args.wsTimeOutMs,
"idleMsgPeriodMs", args.idleMsgPeriodMs,
"uiCfgFn", uiCfgFn )) != kOkRC )
{
rc = cwLogError(rc,"'ui' cfg. parse failed.");
}
@ -2055,6 +2170,7 @@ cw::rc_t cw::ui::ws::create( handle_t& h,
wsCbFunc,
args.dfltPageFn,
args.wsTimeOutMs,
args.idleMsgPeriodMs,
args.rcvBufByteN,
args.xmtBufByteN,
args.fmtBufByteN );
@ -2072,6 +2188,7 @@ cw::rc_t cw::ui::ws::create( handle_t& h,
websock::cbFunc_t wsCbFunc,
const char* dfltPageFn,
unsigned websockTimeOutMs,
unsigned idleMsgPeriodMs,
unsigned rcvBufByteN,
unsigned xmtBufByteN,
unsigned fmtBufByteN )
@ -2111,6 +2228,9 @@ cw::rc_t cw::ui::ws::create( handle_t& h,
p->uiCbFunc = uiCbFunc;
p->wsCbFunc = wsCbFunc;
p->wsTimeOutMs = websockTimeOutMs;
p->idleMsgPeriodMs = idleMsgPeriodMs;
// initialize the last received msg
time::get(p->lastRecvMsgTimeStamp);
h.set(p);
@ -2144,12 +2264,19 @@ cw::rc_t cw::ui::ws::exec( handle_t h )
{
rc_t rc = kOkRC;
ui_ws_t* p = _handleToPtr(h);
time::spec_t t;
if((rc = websock::exec( p->wsH, p->wsTimeOutMs )) != kOkRC)
cwLogError(rc,"The UI websock execution failed.");
// make the idle callback
time::get(t);
if( time::elapsedMs(p->lastRecvMsgTimeStamp,t) > p->idleMsgPeriodMs )
{
ui::onReceive( p->uiH, kInvalidId, "idle", strlen("idle")+1 );
p->lastRecvMsgTimeStamp = t;
}
return rc;
}
@ -2158,6 +2285,8 @@ cw::rc_t cw::ui::ws::onReceive( handle_t h, unsigned protocolId, unsigned sessio
{
ui_ws_t* p = _handleToPtr(h);
_webSockCb( p, protocolId, sessionId, msg_type, msg, byteN );
return kOkRC;
}

11
cwUi.h
View File

@ -66,10 +66,12 @@ namespace cw
// Create multiple UI elements from an object_t representation.
// The channel id of all elements created from the object will be assigned 'chanId'.
// The 'fieldName' string identifies
rc_t createFromObject( handle_t h, const object_t* o, unsigned parentUuId=kInvalidId, unsigned chanId=kInvalidId, const char* cfgFieldName=nullptr);
// The 'label' string identifies a child wihtin the outer object (e.g. o,fn,text, create( ... uiRsrc, ...)) which should be used to create the element.
rc_t createFromObject( handle_t h, const object_t* o, unsigned parentUuId=kInvalidId, unsigned chanId=kInvalidId, const char* label=nullptr);
rc_t createFromFile( handle_t h, const char* fn, unsigned parentUuId=kInvalidId, unsigned chanId=kInvalidId);
rc_t createFromText( handle_t h, const char* text, unsigned parentUuId=kInvalidId, unsigned chanId=kInvalidId);
// This function uses 'label' to locate the child of the internal uiRsrc (passed to 'create()') as the element configuration resource.
rc_t createFromRsrc( handle_t h, const char* label, unsigned parentUuId=kInvalidId, unsigned chanId=kInvalidId);
//
// Create Sincgle UI elements on the UI instance identified by wsSessId.
@ -183,6 +185,7 @@ namespace cw
unsigned xmtBufByteN;
unsigned fmtBufByteN;
unsigned wsTimeOutMs;
unsigned idleMsgPeriodMs; // min period without messages before an idle message is generated
} args_t;
rc_t parseArgs( const object_t& o, args_t& args, const char* object_label="ui" );
@ -208,9 +211,11 @@ namespace cw
websock::cbFunc_t wsCbFunc = nullptr,
const char* dfltPageFn = "index.html",
unsigned websockTimeOutMs = 50,
unsigned idleMsgPeriodMs = 50,
unsigned rcvBufByteN = 1024,
unsigned xmtBufByteN = 1024,
unsigned fmtBufByteN = 4096 );
unsigned fmtBufByteN = 4096
);
rc_t destroy( handle_t& h );