1 files changed, 99 insertions, 0 deletions
diff --git a/src/tangara/input/input_hook.cpp b/src/tangara/input/input_hook.cpp
new file mode 100644
index 00000000..d346b863
--- /dev/null
+++ b/src/tangara/input/input_hook.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2024 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include "input/input_hook.hpp"
+
+#include <functional>
+#include <optional>
+
+#include "hal/lv_hal_indev.h"
+#include "lua.hpp"
+
+#include "input/input_trigger.hpp"
+
+namespace input {
+
+Hook::Hook(std::string name, std::optional<HookCallback> cb)
+    : name_(name), default_(cb), override_() {}
+
+auto Hook::invoke(lv_indev_data_t* d) -> void {
+  auto cb = callback();
+  if (cb) {
+    std::invoke(cb->fn, d);
+  }
+}
+
+auto Hook::override(std::optional<HookCallback> cb) -> void {
+  override_ = cb;
+}
+
+auto Hook::callback() -> std::optional<HookCallback> {
+  if (override_) {
+    return override_;
+  } else if (default_) {
+    return default_;
+  }
+  return {};
+}
+
+TriggerHooks::TriggerHooks(std::string name,
+                           std::optional<HookCallback> click,
+                           std::optional<HookCallback> double_click,
+                           std::optional<HookCallback> long_press,
+                           std::optional<HookCallback> repeat)
+    : name_(name),
+      click_("click", click),
+      double_click_("double_click", double_click),
+      long_press_("long_press", long_press),
+      repeat_("repeat", repeat) {}
+
+auto TriggerHooks::update(bool pressed, lv_indev_data_t* d) -> void {
+  switch (trigger_.update(pressed)) {
+    case Trigger::State::kClick:
+      click_.invoke(d);
+      break;
+    case Trigger::State::kDoubleClick:
+      double_click_.invoke(d);
+      break;
+    case Trigger::State::kLongPress:
+      long_press_.invoke(d);
+      break;
+    case Trigger::State::kRepeatPress:
+      repeat_.invoke(d);
+      break;
+    case Trigger::State::kNone:
+    default:
+      break;
+  }
+}
+
+auto TriggerHooks::override(Trigger::State s, std::optional<HookCallback> cb)
+    -> void {
+  switch (s) {
+    case Trigger::State::kClick:
+      click_.override(cb);
+      break;
+    case Trigger::State::kLongPress:
+      long_press_.override(cb);
+      break;
+    case Trigger::State::kRepeatPress:
+      repeat_.override(cb);
+      break;
+    case Trigger::State::kNone:
+    default:
+      break;
+  }
+}
+
+auto TriggerHooks::name() const -> const std::string& {
+  return name_;
+}
+
+auto TriggerHooks::hooks() -> std::vector<std::reference_wrapper<Hook>> {
+  return {click_, long_press_, repeat_};
+}
+
+}  // namespace input