1 files changed, 154 insertions, 0 deletions
diff --git a/src/bindings.rs b/src/bindings.rs
new file mode 100644
index 0000000..9907bdc
--- /dev/null
+++ b/src/bindings.rs
@@ -0,0 +1,154 @@
+use anyhow::Result;
+use cursive::Cursive;
+use cursive::Printer;
+use cursive::Rect;
+use cursive::View;
+use cursive::XY;
+use cursive::direction::Direction;
+use cursive::event::Callback;
+use cursive::event::Event;
+use cursive::event::EventResult;
+use cursive::event::Key;
+use cursive::view::Nameable;
+use cursive::view::Selector;
+use cursive::view::SizeConstraint;
+use cursive::views::NamedView;
+use cursive::views::ResizedView;
+
+use crate::main_view::MainView;
+
+pub fn get_bindings() -> Bindings {
+    Bindings(vec![
+        Binding {
+            chars: ["quit", "q"].iter().map(ToString::to_string).collect(),
+            callback: Callback::from_fn(|siv: &mut Cursive| {
+                trace!("Callback called: q");
+                let continue_running = siv.call_on_name(crate::main_view::MAIN_VIEW_NAME, |mv: &mut MainView| {
+                    if mv.tabs().tab_order().len() == 1 {
+                        false
+                    } else {
+                        if let Some(key) = mv.tabs().active_tab().cloned() {
+                            debug!("Removing tab: {}", key);
+                            if let Err(e) = mv.tabs_mut().remove_tab(&key) {
+                                error!("{:?}", e); // TODO do more than just logging
+                            }
+                            debug!("Remove tab");
+                        } else {
+                            debug!("No tab to remove found.");
+                        }
+                        true
+                    }
+                })
+                .unwrap_or(true);
+
+                if !continue_running {
+                    debug!("Byebye");
+                    siv.quit();
+                }
+            })
+        },
+
+        Binding {
+            chars: ["open", "o"].iter().map(ToString::to_string).collect(),
+            callback: Callback::from_fn(MainView::add_notmuch_query_layer),
+        }
+    ])
+}
+
+pub const BINDINGS_CALLER: &str = "BINDINGS_CALLER";
+
+#[derive(Clone)]
+pub struct Bindings(Vec<Binding>);
+
+impl Bindings {
+    pub fn new(bs: Vec<Binding>) -> Bindings {
+        Bindings(bs)
+    }
+
+    pub fn caller(&self) -> BindingCaller {
+        BindingCaller::new(self.clone())
+    }
+}
+
+#[derive(Clone)]
+pub struct Binding {
+    chars: Vec<String>,
+    callback: Callback,
+}
+
+impl Binding {
+    pub fn for_events(chars: Vec<String>, callback: Callback) -> Binding {
+        Binding { chars, callback }
+    }
+}
+
+pub struct BindingCaller {
+    configuration: Bindings,
+    state: Vec<char>
+}
+
+impl BindingCaller  {
+    pub fn new(configuration: Bindings) -> Self {
+        BindingCaller { configuration, state: Vec::new() }
+    }
+
+    pub fn process(&mut self, chr: char) {
+        debug!("Char = {}", chr);
+        self.state.push(chr);
+    }
+
+    pub fn finalize(&self) -> Option<Callback> {
+        self.configuration
+            .0
+            .iter()
+            .find(|binding| {
+                trace!("chars {:?} == state {:?}", binding.chars, self.state);
+                let state_str = self.state.iter().collect::<String>();
+                binding.chars.iter().any(|state| *state == state_str)
+            })
+            .map(|binding| {
+                trace!("Binding found");
+                binding.callback.clone()
+            })
+    }
+
+}
+
+impl View for BindingCaller {
+    fn draw(&self, printer: &Printer) {
+        trace!("Drawing with offset      = {:?}", printer.offset);
+        trace!("Drawing with output_size = {:?}", printer.output_size);
+        trace!("Drawing with size        = {:?}", printer.size);
+
+        {
+            let line = "-".repeat(printer.output_size.x);
+            let position = XY {
+                x: printer.offset.x,
+                y: printer.output_size.y - 3,
+            };
+            printer.print(position, &line)
+        }
+
+        {
+            let line = format!(":{}", self.state.iter().collect::<String>());
+            let position = XY {
+                x: printer.offset.x,
+                y: printer.output_size.y - 2,
+            };
+            printer.print(position, &line)
+        }
+    }
+
+    fn on_event(&mut self, e: Event) -> EventResult {
+        match e {
+            Event::Key(Key::Enter) => EventResult::Consumed(self.finalize()),
+            Event::Char(chr) => {
+                self.process(chr);
+                EventResult::Consumed(None)
+            },
+            _ => unimplemented!()
+        }
+    }
+
+}
+