Add hidden tags option (#212)

* Add filter for hidden tags. (#207)

This commit adds the option to configure hidden tags. Articles tagged
with these hidden tags won't appear in the list of articles by default.
To see these articles the user must explicitly filter by those tags.

* Closes #211. Handling hidden tags in the lateral panel.

* Changelog.

app/src/main/res/values-af-rZA/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ar-rSA/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ca-rES/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Informes d\'error</string>
   <string name="pref_debug_debug_logs">Registre de depuració (s\'enviarà automàticament)</string>
   <string name="acra_login">Habilita el registre</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-cs-rCZ/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-da-rDK/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-de-rDE/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-el-rGR/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-es-rES/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Informe de fallos</string>
   <string name="pref_debug_debug_logs">Registro de depuración (éstos se enviarán sin diálogo)</string>
   <string name="acra_login">Habilitar el registro</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-fi-rFI/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-fr-rFR/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Rapport d\'erreur</string>
   <string name="pref_debug_debug_logs">Log de debug (seront envoyés automatiquement)</string>
   <string name="acra_login">Activer les logs</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-gl-rES/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Informes de erros</string>
   <string name="pref_debug_debug_logs">Rexistro de depuración (Estes enviaranse automáticamente)</string>
   <string name="acra_login">Habilitar o rexistro</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-hu-rHU/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-in-rID/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-it-rIT/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-iw-rIL/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ja-rJP/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ko-rKR/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-nl-rNL/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-no-rNO/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-pl-rPL/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-pt-rBR/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Relatório de erro</string>
   <string name="pref_debug_debug_logs">Log de depuração (Serão enviados sem uma caixa de diálogo)</string>
   <string name="acra_login">Ativar registro de erros</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-pt-rPT/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ro-rRO/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-ru-rRU/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-sr-rSP/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-sv-rSE/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-tr-rTR/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-uk-rUA/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-vi-rVN/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-zh-rCN/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values-zh-rTW/strings.xml

@@ -166,4 +166,5 @@
   <string name="pref_debug_crash_reports">Crash reports</string>
   <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
   <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -127,6 +127,7 @@
     <string name="self_signed_cert_warning">Due to security reasons, self signed certificates are not supported by default. By activating this, I\'ll not be responsible of any security problem you encounter.</string>
     <string name="pref_selfoss_category">Selfoss Api</string>
     <string name="pref_api_items_number_title">Loaded items number</string>
+    <string name="pref_hidden_tags">Hidden tags.</string>
     <string name="read_debug_title">Read articles appearing as unread ?</string>
     <string name="read_debug_off">No log when marking an item as read</string>
     <string name="read_debug_on">Api calls will be logged when marking an article as read</string>
@@ -169,4 +170,5 @@
     <string name="pref_debug_crash_reports">Crash reports</string>
     <string name="pref_debug_debug_logs">Debug logging (these will be sent without a dialog)</string>
     <string name="acra_login">Enable logging</string>
+    <string name="drawer_item_hidden_tags">Hidden Tags</string>
 </resources>

app/src/main/res/xml/pref_general.xml

@@ -12,6 +12,14 @@
         android:singleLine="true"
         android:title="@string/pref_api_items_number_title" />
 
+    <EditTextPreference
+        android:defaultValue=""
+        android:hint="@string/add_source_hint_tags"
+        android:key="hidden_tags"
+        android:selectAllOnFocus="true"
+        android:singleLine="true"
+        android:title="@string/pref_hidden_tags" />
+
     <SwitchPreference
         android:defaultValue="false"
         android:key="infinite_loading"