Allow for parallel development instance

This adds a configuration option in meson, if set it changes the
application ID allowing for stable and development version to be
run at the same time.

podcasts-gtk/resources/gtk/empty_view.ui

@@ -81,13 +81,12 @@ Tobias Bernard
     <property name="orientation">vertical</property>
     <property name="spacing">12</property>
     <child>
-      <object class="GtkImage">
+      <object class="GtkImage" id="image">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="halign">center</property>
         <property name="valign">center</property>
         <property name="pixel_size">256</property>
-        <property name="icon_name">org.gnome.Podcasts-symbolic</property>
         <style>
           <class name="dim-label"/>
         </style>

podcasts-gtk/resources/gtk/style.css

@@ -17,4 +17,16 @@ list, border {
 
 .player-show-label {
     font-size: smaller;
+}
+
+.devel headerbar {
+  background: transparent -gtk-icontheme("system-run-symbolic") 80% 0/128px 128px no-repeat,
+              linear-gradient(to left,
+                              mix(@theme_selected_bg_color, @theme_bg_color, 0.5) 8%,
+                              @theme_bg_color 25%);
+  color: alpha(@theme_fg_color, 0.1);
+}
+
+.devel headerbar label {
+  color: @theme_fg_color;
 }

podcasts-gtk/resources/icons/meson.build

@@ -1 +1,15 @@
-install_subdir('hicolor', install_dir: icondir)
+scalable_dir = join_paths('hicolor', 'scalable', 'apps')
+
+install_data(
+  join_paths(scalable_dir, 'org.gnome.Podcasts.svg'),
+  install_dir: join_paths(datadir, 'icons', scalable_dir),
+  rename: '@0@.svg'.format(application_id)
+)
+
+symbolic_dir = join_paths('hicolor', 'symbolic', 'apps')
+
+install_data(
+  join_paths(symbolic_dir, 'org.gnome.Podcasts-symbolic.svg'),
+  install_dir: join_paths(datadir, 'icons', symbolic_dir),
+  rename: '@0@-symbolic.svg'.format(application_id)
+)

podcasts-gtk/resources/meson.build

@@ -1,27 +1,41 @@
 subdir('icons')
 
+desktop_conf = configuration_data()
+desktop_conf.set('icon', application_id)
 i18n.merge_file ('desktop-file',
   type: 'desktop',
-  input: 'org.gnome.Podcasts.desktop.in',
-  output: 'org.gnome.Podcasts.desktop',
+  input: configure_file(
+    input: files('org.gnome.Podcasts.desktop.in.in'),
+    output: 'org.gnome.Podcasts.desktop.in',
+    configuration: desktop_conf
+  ),
+  output: '@0@.desktop'.format(application_id),
   po_dir: podir,
   install: true,
   install_dir: join_paths (datadir, 'applications')
 )
 
+appdata_conf = configuration_data()
+appdata_conf.set('appid', application_id)
 i18n.merge_file ('appdata-file',
-  input: 'org.gnome.Podcasts.appdata.xml.in',
-  output: 'org.gnome.Podcasts.appdata.xml',
+  input: configure_file(
+    input: files('org.gnome.Podcasts.appdata.xml.in.in'),
+    output: 'org.gnome.Podcasts.appdata.xml.in',
+    configuration: appdata_conf
+  ),
+  output: '@0@.appdata.xml'.format(application_id),
   po_dir: podir,
   install: true,
-  install_dir: join_paths (datadir, 'appdata')
+  install_dir: join_paths (datadir, 'metainfo')
 )
 
 install_data('org.gnome.Podcasts.gschema.xml', install_dir: join_paths(datadir, 'glib-2.0', 'schemas'))
 
-configure_file(input: 'org.gnome.Podcasts.service.in',
-               output: 'org.gnome.Podcasts.service',
-               configuration: podcasts_conf,
-               install_dir: join_paths([datadir,'dbus-1/services']))
+configure_file(
+  input: 'org.gnome.Podcasts.service.in',
+  output: '@0@.service'.format(application_id),
+  configuration: podcasts_conf,
+  install_dir: join_paths(datadir,'dbus-1', 'services')
+)
 
 meson.add_install_script('../../scripts/compile-gschema.py')

podcasts-gtk/resources/org.gnome.Podcasts.appdata.xml.in.in

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>org.gnome.Podcasts</id>
+  <id>@appid@</id>
   <name>Podcasts</name>
   <project_license>GPL-3.0</project_license>
   <metadata_license>CC0-1.0</metadata_license>

podcasts-gtk/resources/org.gnome.Podcasts.desktop.in.in

@@ -2,7 +2,7 @@
 Name=Podcasts
 Comment=Listen to your favorite podcasts, right from your desktop.
 # Translators: Do NOT translate or transliterate this text (this is an icon file name)!
-Icon=org.gnome.Podcasts
+Icon=@icon@
 Exec=gnome-podcasts
 Terminal=false
 Type=Application

podcasts-gtk/resources/org.gnome.Podcasts.service.in

@@ -1,3 +1,3 @@
 [D-BUS Service]
-Name=org.gnome.Podcasts
-Exec=@BINDIR@/gnome-podcasts --gapplication-service
+Name=@appid@
+Exec=@bindir@/gnome-podcasts --gapplication-service