Add ui submodules to talk to external programs, editor in this case

src/ui/external/editor.rs

@@ -0,0 +1,53 @@
+use std::ops::Drop;
+
+use std::path::PathBuf;
+use std::fs::File;
+use std::error::Error;
+
+use runtime::Runtime;
+
+/*
+ * A Temporary file in /tmp where the editor is launched on, so we can grap the contents and put
+ * into the store
+ */
+pub struct TempFile {
+    path: Option<PathBuf>,
+    file: Option<File>,
+}
+
+impl TempFile {
+
+    pub fn new(rt: &Runtime) -> TempFile {
+        debug!("Building new TempFile");
+        unimplemented!()
+    }
+
+    pub fn edit(&mut self, editor: Option<String>) -> TempFile {
+        debug!("Editing TempFile");
+        unimplemented!()
+    }
+
+    pub fn content(&self) -> Result<String, TempFileError> {
+        debug!("Fetching content of TempFile");
+        unimplemented!()
+    }
+
+}
+
+/*
+ * Implement Drop, so we ensure to remove the tempfile
+ *
+ * (is this neccessary if we use a real tempfile)
+ */
+impl Drop for TempFile {
+
+    fn drop(&mut self) {
+        unimplemented!()
+    }
+
+}
+
+
+pub struct TempFileError {
+    cause: Option<Box<Error>>,
+}

src/ui/external/mod.rs

@@ -0,0 +1 @@
+pub mod editor;

src/ui/mod.rs

@@ -1 +1,2 @@
 pub mod file;
+pub mod external;