Vi-style editor and other editor improvements (#40)

* WIP VI wrapper for editor

* WIP: block cursor

* Create Edit trait, run CI on all feature options

* Add prints describing build steps to ci.sh

* Custom rendering for Vi editor

* Clippy fixes

* More clippy fixes

* Show clippy results in CI

* Fix for Redox

* Fix clippy lint

* Add vi feature to enable vi-style editor

* Add escape to libcosmic text box

src/font/fallback/macos.rs

@@ -36,7 +36,7 @@ fn han_unification(locale: &str) -> &'static [&'static str] {
 }
 
 // Fallbacks to use per script
-pub fn script_fallback(script: &Script, locale: &str) -> &'static [&'static str] {
+pub fn script_fallback(script: Script, locale: &str) -> &'static [&'static str] {
     //TODO: abstract style (sans/serif/monospaced)
     //TODO: pull more data from about:config font.name-list.sans-serif in Firefox
     match script {

src/font/fallback/mod.rs

@@ -108,7 +108,7 @@ impl<'a> Iterator for FontFallbackIter<'a> {
         while self.script_i.0 < self.scripts.len() {
             let script = self.scripts[self.script_i.0];
 
-            let script_families = script_fallback(&script, self.locale);
+            let script_families = script_fallback(script, self.locale);
             while self.script_i.1 < script_families.len() {
                 let script_family = script_families[self.script_i.1];
                 self.script_i.1 += 1;
@@ -133,7 +133,7 @@ impl<'a> Iterator for FontFallbackIter<'a> {
                     return Some(font);
                 }
             }
-            log::warn!("failed to find family '{}'", common_family)
+            log::warn!("failed to find family '{}'", common_family);
         }
 
         //TODO: do we need to do this?

src/font/fallback/other.rs

@@ -13,6 +13,6 @@ pub fn forbidden_fallback() -> &'static [&'static str] {
 }
 
 // Fallbacks to use per script
-pub fn script_fallback(script: &Script, locale: &str) -> &'static [&'static str] {
+pub fn script_fallback(_script: Script, _locale: &str) -> &'static [&'static str] {
     &[]
 }

src/font/fallback/unix.rs

@@ -44,7 +44,7 @@ fn han_unification(locale: &str) -> &'static [&'static str] {
 }
 
 // Fallbacks to use per script
-pub fn script_fallback(script: &Script, locale: &str) -> &'static [&'static str] {
+pub fn script_fallback(script: Script, locale: &str) -> &'static [&'static str] {
     //TODO: abstract style (sans/serif/monospaced)
     match script {
         Script::Adlam => &["Noto Sans Adlam", "Noto Sans Adlam Unjoined"],

src/font/fallback/windows.rs

@@ -36,7 +36,7 @@ fn han_unification(locale: &str) -> &'static [&'static str] {
 }
 
 // Fallbacks to use per script
-pub fn script_fallback(script: &Script, locale: &str) -> &'static [&'static str] {
+pub fn script_fallback(script: Script, locale: &str) -> &'static [&'static str] {
     //TODO: better match https://github.com/chromium/chromium/blob/master/third_party/blink/renderer/platform/fonts/win/font_fallback_win.cc#L99
     match script {
         Script::Adlam => &["Ebrima"],