feat(core): wire up backspace_limit option

espanso/src/cli/worker/config.rs

@@ -129,9 +129,7 @@ impl<'a> super::engine::dispatch::executor::clipboard_injector::ClipboardParamsP
   }
 }
 
-impl<'a> super::engine::dispatch::executor::InjectParamsProvider
-  for ConfigManager<'a>
-{
+impl<'a> super::engine::dispatch::executor::InjectParamsProvider for ConfigManager<'a> {
   fn get(&self) -> super::engine::dispatch::executor::InjectParams {
     let active = self.active();
     super::engine::dispatch::executor::InjectParams {
@@ -141,3 +139,9 @@ impl<'a> super::engine::dispatch::executor::InjectParamsProvider
     }
   }
 }
+
+impl<'a> crate::engine::process::MatcherMiddlewareConfigProvider for ConfigManager<'a> {
+  fn max_history_size(&self) -> usize {
+    self.default().backspace_limit()
+  }
+}

espanso/src/cli/worker/engine/mod.rs

@@ -141,6 +141,7 @@ pub fn initialize_and_spawn(
         &sequencer,
         &path_provider,
         disable_options,
+        &config_manager,
       );
 
       let event_injector = EventInjectorAdapter::new(&*injector, &config_manager);

espanso/src/engine/process/default.rs

@@ -19,7 +19,7 @@
 
 use log::trace;
 
-use super::{DisableOptions, MatchFilter, MatchInfoProvider, MatchSelector, Matcher, Middleware, Multiplexer, PathProvider, Processor, Renderer, middleware::{
+use super::{DisableOptions, MatchFilter, MatchInfoProvider, MatchSelector, Matcher, MatcherMiddlewareConfigProvider, Middleware, Multiplexer, PathProvider, Processor, Renderer, middleware::{
     match_select::MatchSelectMiddleware, matcher::MatcherMiddleware, multiplex::MultiplexMiddleware,
     render::RenderMiddleware, action::{ActionMiddleware, EventSequenceProvider}, cursor_hint::CursorHintMiddleware, cause::CauseCompensateMiddleware,
     delay_modifiers::{DelayForModifierReleaseMiddleware, ModifierStatusProvider}, markdown::MarkdownMiddleware,
@@ -45,6 +45,7 @@ impl<'a> DefaultProcessor<'a> {
     event_sequence_provider: &'a dyn EventSequenceProvider,
     path_provider: &'a dyn PathProvider,
     disable_options: DisableOptions,
+    matcher_options_provider: &'a dyn MatcherMiddlewareConfigProvider,
   ) -> DefaultProcessor<'a> {
     Self {
       event_queue: VecDeque::new(),
@@ -52,7 +53,7 @@ impl<'a> DefaultProcessor<'a> {
         Box::new(PastEventsDiscardMiddleware::new()),
         Box::new(DisableMiddleware::new(disable_options)),
         Box::new(IconStatusMiddleware::new()),
-        Box::new(MatcherMiddleware::new(matchers)),
+        Box::new(MatcherMiddleware::new(matchers, matcher_options_provider)),
         Box::new(ContextMenuMiddleware::new()),
         Box::new(MatchSelectMiddleware::new(match_filter, match_selector)),
         Box::new(CauseCompensateMiddleware::new()),

espanso/src/engine/process/middleware/matcher.rs

@@ -30,19 +30,26 @@ use crate::engine::{
   process::{Matcher, MatcherEvent},
 };
 
-const MAX_HISTORY: usize = 3; // TODO: get as parameter
+pub trait MatcherMiddlewareConfigProvider {
+  fn max_history_size(&self) -> usize;
+}
 
 pub struct MatcherMiddleware<'a, State> {
   matchers: &'a [&'a dyn Matcher<'a, State>],
 
   matcher_states: RefCell<VecDeque<Vec<State>>>,
+
+  max_history_size: usize,
 }
 
 impl<'a, State> MatcherMiddleware<'a, State> {
-  pub fn new(matchers: &'a [&'a dyn Matcher<'a, State>]) -> Self {
+  pub fn new(matchers: &'a [&'a dyn Matcher<'a, State>], options_provider: &'a dyn MatcherMiddlewareConfigProvider) -> Self {
+    let max_history_size = options_provider.max_history_size();
+
     Self {
       matchers,
       matcher_states: RefCell::new(VecDeque::new()),
+      max_history_size,
     }
   }
 }
@@ -92,7 +99,7 @@ impl<'a, State> Middleware for MatcherMiddleware<'a, State> {
         }
 
         matcher_states.push_back(new_states);
-        if matcher_states.len() > MAX_HISTORY {
+        if matcher_states.len() > self.max_history_size {
           matcher_states.pop_front();
         }
 

espanso/src/engine/process/mod.rs

@@ -96,6 +96,7 @@ pub use middleware::action::{MatchInfoProvider, EventSequenceProvider};
 pub use middleware::delay_modifiers::ModifierStatusProvider;
 pub use middleware::image_resolve::PathProvider;
 pub use middleware::disable::DisableOptions;
+pub use middleware::matcher::MatcherMiddlewareConfigProvider;
 
 pub fn default<'a, MatcherState>(
   matchers: &'a [&'a dyn Matcher<'a, MatcherState>],
@@ -108,6 +109,7 @@ pub fn default<'a, MatcherState>(
   event_sequence_provider: &'a dyn EventSequenceProvider,
   path_provider: &'a dyn PathProvider,
   disable_options: DisableOptions,
+  matcher_options_provider: &'a dyn MatcherMiddlewareConfigProvider,
 ) -> impl Processor + 'a {
   default::DefaultProcessor::new(
     matchers,
@@ -120,5 +122,6 @@ pub fn default<'a, MatcherState>(
     event_sequence_provider,
     path_provider,
     disable_options,
+    matcher_options_provider,
   )
 }