Add action code for MultiCount, including Increment and Decrement

actions.

inquire/src/prompts/multicount/action.rs

@@ -0,0 +1,75 @@
+use crate::{ui::{Key, KeyModifiers}, InnerAction, InputAction};
+
+use super::config::MultiCountConfig;
+
+/// Set of actions for a MultiCountPrompt.
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum MultiCountPromptAction{
+    /// Action on the value text input handler.
+    FilterInput(InputAction),
+    /// Moves the cursor to the option above.
+    MoveUp,
+    /// Moves the cursor to the option below.
+    MoveDown,
+    /// Moves the cursor to the page above.
+    PageUp,
+    /// Moves the cursor to the page below.
+    PageDown,
+    /// Moves the cursor to the start of the list.
+    MoveToStart,
+    /// Moves the cursor to the end of the list.
+    MoveToEnd,
+    /// Toggles the selection of the current option.
+    SetCountCurrentOption(u32), 
+    /// Increments the current selection by one
+    Increment,
+    /// Decrements the current selection by one
+    Decrement,
+    /// Increments the current selection by the given amount
+    MultiIncrement(u32),
+    /// Decrements the current selection by the given amount
+    MultiDecrement(u32),
+    /// Clears counts for all options.
+    ClearSelections,
+}
+
+impl InnerAction for MultiCountPromptAction {
+    type Config = MultiCountConfig;
+
+    fn from_key(key: Key, config: &MultiCountConfig) -> Option<Self> {
+        if config.vim_mode {
+            let action = match key {
+                Key::Char('k', KeyModifiers::NONE) => Some(Self::MoveUp),
+                Key::Char('j', KeyModifiers::NONE) => Some(Self::MoveDown),
+                Key::Char('+', KeyModifiers::NONE) => Some(Self::Increment),
+                Key::Char('-', KeyModifiers::NONE) => Some(Self::Decrement),
+                _ => None,
+            };
+            if action.is_some() {
+                return action;
+            }
+        }
+
+
+        let action = match key {
+            Key::Up(KeyModifiers::NONE) | Key::Char('p', KeyModifiers::CONTROL) => Self::MoveUp,
+
+            Key::PageUp(_) => Self::PageUp,
+            Key::Home => Self::MoveToStart,
+
+            Key::Down(KeyModifiers::NONE) | Key::Char('n', KeyModifiers::CONTROL) => Self::MoveDown,
+            Key::PageDown(_) => Self::PageDown,
+            Key::End => Self::MoveToEnd,
+
+            Key::Right(KeyModifiers::NONE) => Self::Increment,
+            Key::Left(KeyModifiers::NONE) => Self::Decrement,
+            Key::Right(KeyModifiers::SHIFT) => Self::MultiIncrement(10),
+            Key::Left(KeyModifiers::SHIFT) => Self::MultiDecrement(10),
+            key => match InputAction::from_key(key, &()) {
+                Some(action) => Self::FilterInput(action),
+                None => return None,
+            },
+         };
+         Some(action)
+    }
+}