background: install a default wallpaper

The image was donated by @erikvanhamme.

Author: ammen99

data/meson.build

@@ -1 +1,2 @@
 install_data('wayfire.png', install_dir: icon_dir)
+install_data('wallpaper.jpg', install_dir: resource_dir)

data/wallpaper.jpg

@@ -40,6 +40,7 @@ add_project_arguments('-DICONDIR="' + icon_dir + '"', language : 'cpp')
 add_project_arguments('-DMETADATA_DIR="' + metadata_dir + '"', language : 'cpp')
 add_project_arguments('-DSYSCONF_DIR="' + sysconf_dir + '"', language : 'cpp')
 
+resource_dir = join_paths(get_option('prefix'), 'share', 'wayfire')
 subdir('metadata')
 subdir('proto')
 subdir('data')

meson.build

@@ -5,7 +5,7 @@
 	<category>Shell</category>
 	<option name="image" type="string">
 		<_short>Background</_short>
-		<default>&lt;file or directory&gt;</default>
+		<default>@wallpaper@</default>
 		<hint>file</hint>
 		<hint>directory</hint>
 	</option>

metadata/background.xml metadata/background.xml.inmetadata/background.xml renamed to metadata/background.xml.in

@@ -1,3 +1,9 @@
-install_data('background.xml', install_dir: metadata_dir)
+configure_file(input: 'background.xml.in', output: 'background.xml',
+        configuration: {
+            'wallpaper': join_paths(resource_dir, 'wallpaper.jpg')
+        },
+        install: true,
+        install_dir: metadata_dir)
+
 install_data('dock.xml', install_dir: metadata_dir)
 install_data('panel.xml', install_dir: metadata_dir)

metadata/meson.build

@@ -2,7 +2,7 @@
 
 [background]
 # Full path to image or directory of images
-image = /home/ilex/Desktop/sea-tree.jpeg
+# image = /usr/share/wayfire/wallpaper.jpg
 # Whether to scale images or preserve background ratio
 preserve_aspect = 0
 # In the case of directory, timeout between changing backgrounds, in seconds