[welcome] Move get-the-show*Url code into Config

- Since this is configuration-loading, put it in the Config
  class; reduces code duplication between welcome and welcomeq.

src/modules/welcome/Config.cpp

@@ -245,3 +245,48 @@ Config::warningMessage() const
 {
     return m_warningMessage;
 }
+
+/** @brief Look up a URL for a button
+ *
+ * Looks up @p key in @p map; if it is a *boolean* value, then
+ * assume an old-style configuration, and fetch the string from
+ * the branding settings @p e. If it is a string, not a boolean,
+ * use it as-is. If not found, or a weird type, returns empty.
+ *
+ * This allows switching the showKnownIssuesUrl and similar settings
+ * in welcome.conf from a boolean (deferring to branding) to an
+ * actual string for immediate use. Empty strings, as well as
+ * "false" as a setting, will hide the buttons as before.
+ */
+static QString
+jobOrBrandingSetting( Calamares::Branding::StringEntry e, const QVariantMap& map, const QString& key )
+{
+    if ( !map.contains( key ) )
+    {
+        return QString();
+    }
+    auto v = map.value( key );
+    if ( v.type() == QVariant::Bool )
+    {
+        return v.toBool() ? ( Calamares::Branding::instance()->string( e ) ) : QString();
+    }
+    if ( v.type() == QVariant::String )
+    {
+        return v.toString();
+    }
+
+    return QString();
+}
+
+void
+Config::setConfigurationMap( const QVariantMap& configurationMap )
+{
+    using Calamares::Branding;
+
+    setSupportUrl( jobOrBrandingSetting( Branding::SupportUrl, configurationMap, "showSupportUrl" ) );
+    setKnownIssuesUrl(
+        jobOrBrandingSetting( Branding::KnownIssuesUrl, configurationMap, "showKnownIssuesUrl" ) );
+    setReleaseNotesUrl(
+        jobOrBrandingSetting( Branding::ReleaseNotesUrl, configurationMap, "showReleaseNotesUrl" ) );
+    setDonateUrl( jobOrBrandingSetting( Branding::DonateUrl, configurationMap, "showDonateUrl" ) );
+}

src/modules/welcome/Config.h

@@ -50,6 +50,8 @@ class Config : public QObject
 public:
     Config( QObject* parent = nullptr );
 
+    void setConfigurationMap( const QVariantMap& );
+
     Calamares::RequirementsModel& requirementsModel() const;
 
     void setCountryCode( const QString& countryCode );

src/modules/welcome/WelcomeViewStep.cpp

@@ -107,49 +107,10 @@ WelcomeViewStep::jobs() const
 }
 
 
-/** @brief Look up a URL for a button
- *
- * Looks up @p key in @p map; if it is a *boolean* value, then
- * assume an old-style configuration, and fetch the string from
- * the branding settings @p e. If it is a string, not a boolean,
- * use it as-is. If not found, or a weird type, returns empty.
- *
- * This allows switching the showKnownIssuesUrl and similar settings
- * in welcome.conf from a boolean (deferring to branding) to an
- * actual string for immediate use. Empty strings, as well as
- * "false" as a setting, will hide the buttons as before.
- */
-static QString
-jobOrBrandingSetting( Calamares::Branding::StringEntry e, const QVariantMap& map, const QString& key )
-{
-    if ( !map.contains( key ) )
-    {
-        return QString();
-    }
-    auto v = map.value( key );
-    if ( v.type() == QVariant::Bool )
-    {
-        return v.toBool() ? ( Calamares::Branding::instance()->string( e ) ) : QString();
-    }
-    if ( v.type() == QVariant::String )
-    {
-        return v.toString();
-    }
-
-    return QString();
-}
-
 void
 WelcomeViewStep::setConfigurationMap( const QVariantMap& configurationMap )
 {
-    using Calamares::Branding;
-
-    m_conf->setSupportUrl( jobOrBrandingSetting( Branding::SupportUrl, configurationMap, "showSupportUrl" ) );
-    m_conf->setKnownIssuesUrl(
-        jobOrBrandingSetting( Branding::KnownIssuesUrl, configurationMap, "showKnownIssuesUrl" ) );
-    m_conf->setReleaseNotesUrl(
-        jobOrBrandingSetting( Branding::ReleaseNotesUrl, configurationMap, "showReleaseNotesUrl" ) );
-    m_conf->setDonateUrl( CalamaresUtils::getString( configurationMap, "showDonateUrl" ) );
+    m_conf->setConfigurationMap( configurationMap );
 
     if ( configurationMap.contains( "requirements" )
          && configurationMap.value( "requirements" ).type() == QVariant::Map )

src/modules/welcomeq/WelcomeQmlViewStep.cpp

@@ -98,48 +98,10 @@ WelcomeQmlViewStep::jobs() const
 	return Calamares::JobList();
 }
 
-/** @brief Look up a URL for a button
- *
- * Looks up @p key in @p map; if it is a *boolean* value, then
- * assume an old-style configuration, and fetch the string from
- * the branding settings @p e. If it is a string, not a boolean,
- * use it as-is. If not found, or a weird type, returns empty.
- *
- * This allows switching the showKnownIssuesUrl and similar settings
- * in welcome.conf from a boolean (deferring to branding) to an
- * actual string for immediate use. Empty strings, as well as
- * "false" as a setting, will hide the buttons as before.
- */
-static QString
-jobOrBrandingSetting( Calamares::Branding::StringEntry e, const QVariantMap& map, const QString& key )
-{
-    if ( !map.contains( key ) )
-    {
-        return QString();
-    }
-    auto v = map.value( key );
-    if ( v.type() == QVariant::Bool )
-    {
-        return v.toBool() ? ( Calamares::Branding::instance()->string( e ) ) : QString();
-    }
-    if ( v.type() == QVariant::String )
-    {
-        return v.toString();
-    }
-
-    return QString();
-}
-
 void
 WelcomeQmlViewStep::setConfigurationMap( const QVariantMap& configurationMap )
 {
-	using Calamares::Branding;
-    m_config->setSupportUrl( jobOrBrandingSetting( Branding::SupportUrl, configurationMap, "showSupportUrl" ) );
-    m_config->setKnownIssuesUrl( jobOrBrandingSetting( Branding::KnownIssuesUrl, configurationMap, "showKnownIssuesUrl" ) );
-    m_config->setReleaseNotesUrl( jobOrBrandingSetting( Branding::ReleaseNotesUrl, configurationMap, "showReleaseNotesUrl" ) );
-    m_config->setDonateUrl( CalamaresUtils::getString( configurationMap, "showDonateUrl" ) );
-
-	// TODO: expand Config class and set the remaining fields // with the configurationMap all those properties can be accessed without having to declare a property, get and setter for each
+    m_config->setConfigurationMap( configurationMap );
 
 	// TODO: figure out how the requirements (held by ModuleManager) should be accessible
 	//          to QML as a model. //will be model as a qvariantmap containing a alert level and the message string