channellist: simplify key_zaphistory/key_current_transponder handling

* Remove strange list of "zapable" channels while recording. Channellist
(RC_ok) has same feature ... not avalable channels are marked inactive.

* Add hint, when no zapping histoty is available to confirm user's keypress


Origin commit data
------------------
Branch: ni/coolstream
Commit: 9034fd3ea6
Author: vanhofen <vanhofen@gmx.de>
Date: 2018-03-21 (Wed, 21 Mar 2018)

Origin message was:
------------------
- channellist: simplify key_zaphistory/key_current_transponder handling

* Remove strange list of "zapable" channels while recording. Channellist
(RC_ok) has same feature ... not avalable channels are marked inactive.

* Add hint, when no zapping histoty is available to confirm user's keypress


------------------
This commit was generated by Migit

data/locale/deutsch.locale

@@ -292,6 +292,7 @@ channellist.foot_sort_sat Sortiert[sat]
 channellist.head Alle Kanäle
 channellist.history Verlauf
 channellist.history_clear Verlauf löschen
+channellist.history_empty Kein Verlauf verfügbar
 channellist.keep_numbers Dauerhafte Kanalnummern
 channellist.make_hdlist Erzeuge Bouquets mit HD- und UHD-Kanälen
 channellist.make_newlist Erzeuge Bouquet mit neuen Kanälen
@@ -1008,7 +1009,7 @@ keybindingmenu.video Video
 keybindingmenu.volume Lautstärke
 keybindingmenu.volumedown Leiser
 keybindingmenu.volumeup Lauter
-keybindingmenu.zaphistory Zapping-History Bouquet
+keybindingmenu.zaphistory Senderverlauf
 keychooser.head Neue Taste einstellen
 keychooser.text Neue Taste drücken.\nZum Abbrechen ein paar Sekunden warten ...
 keychoosermenu.currentkey Derzeitige Taste

data/locale/english.locale

@@ -292,6 +292,7 @@ channellist.foot_sort_sat Sorted[sat]
 channellist.head All services
 channellist.history History
 channellist.history_clear Clear history
+channellist.history_empty No history available
 channellist.keep_numbers Persistent channel numbers
 channellist.make_hdlist Create lists of HD and UHD channels
 channellist.make_newlist Create list of new channels
@@ -1008,7 +1009,7 @@ keybindingmenu.video Video
 keybindingmenu.volume Volume
 keybindingmenu.volumedown Decrease
 keybindingmenu.volumeup Increase
-keybindingmenu.zaphistory Zapping History Bouquet
+keybindingmenu.zaphistory Channel history
 keychooser.head Setup new key
 keychooser.text Press new key.\nWait a few seconds to abort ...
 keychoosermenu.currentkey current key

src/gui/channellist.cpp

@@ -1240,40 +1240,77 @@ void CChannelList::zapToChannel(CZapitChannel *channel, bool force)
 int CChannelList::numericZap(int key)
 {
 	int res = -1;
-	if(showEmptyError())
+	if (showEmptyError())
 		return res;
 
-	// -- quickzap "0" to last seen channel...
-	if (key == g_settings.key_lastchannel) {
+	/*
+	   TODO?
+	   Move handling of key_zaphistory and key_current_transponder
+	   into sepatate functions?
+	   These keys do not zap numeric. Pseudo bouquets are shown.
+	*/
+
+	// quickzap "0" to last seen channel
+	if (key == g_settings.key_lastchannel)
+	{
 		t_channel_id channel_id = lastChList.getlast(1);
-		if(channel_id && SameTP(channel_id)) {
+		if (channel_id && SameTP(channel_id))
+		{
 			lastChList.clear_storedelay(); // ignore store delay
 			int new_mode = lastChList.get_mode(channel_id);
-			if(new_mode >= 0)
+			if (new_mode >= 0)
 				CNeutrinoApp::getInstance()->SetChannelMode(new_mode);
 			zapTo_ChannelID(channel_id);
 			res = 0;
 		}
 		return res;
 	}
-	if ((key == g_settings.key_zaphistory) || (key == g_settings.key_current_transponder)) {
-		if((!autoshift && CNeutrinoApp::getInstance()->recordingstatus) || (key == g_settings.key_current_transponder)) {
+
+	// zap history bouquet
+	if (key == g_settings.key_zaphistory)
+	{
+		if (this->lastChList.size() > 1)
+		{
+			CChannelList * channelList = new CChannelList(g_Locale->getText(LOCALE_CHANNELLIST_HISTORY), true, true);
+
+			for (unsigned int i = 1; i < this->lastChList.size(); ++i)
+			{
+				t_channel_id channel_id = this->lastChList.getlast(i);
+				if (channel_id)
+				{
+					CZapitChannel* channel = getChannel(channel_id);
+					if (channel)
+						channelList->addChannel(channel);
+				}
+			}
+			if (!channelList->isEmpty())
+			{
+				this->frameBuffer->paintBackground();
+				res = channelList->exec();
+				CVFD::getInstance()->setMode(CVFD::MODE_TVRADIO);
+			}
+			delete channelList;
+		}
+		else
+			ShowHint(LOCALE_MESSAGEBOX_INFO, LOCALE_CHANNELLIST_HISTORY_EMPTY);
+
+		return res;
+	}
+
+	// current transponder bouquet
+	if (key == g_settings.key_current_transponder)
+	{
 		CChannelList * orgList = CNeutrinoApp::getInstance()->channelList;
 		CChannelList * channelList = new CChannelList(g_Locale->getText(LOCALE_CHANNELLIST_CURRENT_TP), false, true);
-
-			if(key == g_settings.key_current_transponder) {
 		t_channel_id recid = (*chanlist)[selected]->getChannelID() >> 16;
-				for ( unsigned int i = 0 ; i < (*orgList->chanlist).size(); i++) {
-					if(((*orgList->chanlist)[i]->getChannelID() >> 16) == recid)
+
+		for (unsigned int i = 0; i < (*orgList->chanlist).size(); i++)
+		{
+			if (((*orgList->chanlist)[i]->getChannelID() >> 16) == recid)
 				channelList->addChannel((*orgList->chanlist)[i]);
 		}
-			} else {
-				for ( unsigned int i = 0 ; i < (*orgList->chanlist).size(); i++) {
-					if(SameTP((*orgList->chanlist)[i]))
-						channelList->addChannel((*orgList->chanlist)[i]);
-				}
-			}
-			if ( !channelList->isEmpty()) {
+		if (!channelList->isEmpty())
+		{
 			channelList->adjustToChannelID(orgList->getActiveChannel_ChannelID());
 			this->frameBuffer->paintBackground();
 			res = channelList->exec();
@@ -1282,26 +1319,8 @@ int CChannelList::numericZap(int key)
 		delete channelList;
 		return res;
 	}
-		// -- zap history bouquet, similar to "0" quickzap, but shows a menue of last channels
-		if (this->lastChList.size() > 1) {
-			CChannelList * channelList = new CChannelList(g_Locale->getText(LOCALE_CHANNELLIST_HISTORY), true, true);
 
-			for(unsigned int i = 1; i < this->lastChList.size() ; ++i) {
-				t_channel_id channel_id = this->lastChList.getlast(i);
-				if(channel_id) {
-					CZapitChannel* channel = getChannel(channel_id);
-					if(channel) channelList->addChannel(channel);
-				}
-			}
-			if ( !channelList->isEmpty() ) {
-				this->frameBuffer->paintBackground();
-				res = channelList->exec();
-				CVFD::getInstance()->setMode(CVFD::MODE_TVRADIO);
-			}
-			delete channelList;
-		}
-		return res;
-	}
+	// real numeric zap
 	size_t maxchansize = MaxChanNr().size();
 	int fw = g_Font[SNeutrinoSettings::FONT_TYPE_CHANNEL_NUM_ZAP]->getMaxDigitWidth();
 	int fh = g_Font[SNeutrinoSettings::FONT_TYPE_CHANNEL_NUM_ZAP]->getHeight();

src/system/locals.h

@@ -319,6 +319,7 @@ typedef enum
 	LOCALE_CHANNELLIST_HEAD,
 	LOCALE_CHANNELLIST_HISTORY,
 	LOCALE_CHANNELLIST_HISTORY_CLEAR,
+	LOCALE_CHANNELLIST_HISTORY_EMPTY,
 	LOCALE_CHANNELLIST_KEEP_NUMBERS,
 	LOCALE_CHANNELLIST_MAKE_HDLIST,
 	LOCALE_CHANNELLIST_MAKE_NEWLIST,

src/system/locals_intern.h

@@ -319,6 +319,7 @@ const char * locale_real_names[] =
 	"channellist.head",
 	"channellist.history",
 	"channellist.history_clear",
+	"channellist.history_empty",
 	"channellist.keep_numbers",
 	"channellist.make_hdlist",
 	"channellist.make_newlist",