event: refactor HookSystem into a typed event bus (#13333)

Refactors the old HookSystem into a typed event bus with clear
separation,
discovery and types.

4 files changed, 22 insertions, 26 deletions

diff --git a/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.cpp b/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.cpp
index 65533e71..6e9e822c 100644
--- a/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.cpp
+++ b/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.cpp
@@ -10,6 +10,7 @@
 #include "../../../../desktop/history/WindowHistoryTracker.hpp"
 #include "../../../../helpers/Monitor.hpp"
 #include "../../../../Compositor.hpp"
+#include "../../../../event/EventBus.hpp"
 
 #include <hyprutils/string/VarList2.hpp>
 #include <hyprutils/string/ConstVarList.hpp>
@@ -22,16 +23,14 @@ using namespace Layout::Tiled;
 
 CMonocleAlgorithm::CMonocleAlgorithm() {
     // hook into focus changes to bring focused window to front
-    m_focusCallback = g_pHookSystem->hookDynamic("activeWindow", [this](void* hk, SCallbackInfo& info, std::any param) {
-        const auto PWINDOW = std::any_cast<Desktop::View::SWindowActiveEvent>(param).window;
-
-        if (!PWINDOW)
+    m_focusCallback = Event::bus()->m_events.window.active.listen([this](PHLWINDOW pWindow, Desktop::eFocusReason reason) {
+        if (!pWindow)
             return;
 
-        if (!PWINDOW->m_workspace->isVisible())
+        if (!pWindow->m_workspace->isVisible())
             return;
 
-        const auto TARGET = PWINDOW->layoutTarget();
+        const auto TARGET = pWindow->layoutTarget();
         if (!TARGET)
             return;
 
diff --git a/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.hpp b/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.hpp
index e409b885..b23f85be 100644
--- a/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.hpp
+++ b/src/layout/algorithm/tiled/monocle/MonocleAlgorithm.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include "../../TiledAlgorithm.hpp"
-#include "../../../../managers/HookSystemManager.hpp"
+#include "../../../../helpers/signal/Signal.hpp"
 
 #include <vector>
 
@@ -38,7 +38,7 @@ namespace Layout::Tiled {
 
       private:
         std::vector<SP<SMonocleTargetData>> m_targetDatas;
-        SP<HOOK_CALLBACK_FN>                m_focusCallback;
+        CHyprSignalListener                 m_focusCallback;
 
         int                                 m_currentVisibleIndex = 0;
 
diff --git a/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.cpp b/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.cpp
index 74de48e4..5b696113 100644
--- a/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.cpp
+++ b/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.cpp
@@ -11,6 +11,7 @@
 #include "../../../../config/ConfigManager.hpp"
 #include "../../../../render/Renderer.hpp"
 #include "../../../../managers/input/InputManager.hpp"
+#include "../../../../event/EventBus.hpp"
 
 #include <hyprutils/string/VarList2.hpp>
 #include <hyprutils/string/ConstVarList.hpp>
@@ -477,7 +478,7 @@ CScrollingAlgorithm::CScrollingAlgorithm() {
             return SCROLL_DIR_RIGHT; // default
     };
 
-    m_configCallback = g_pHookSystem->hookDynamic("configReloaded", [this, parseDirection](void* hk, SCallbackInfo& info, std::any param) {
+    m_configCallback = Event::bus()->m_events.config.reloaded.listen([this, parseDirection] {
         static const auto PCONFDIRECTION = CConfigValue<Hyprlang::STRING>("scrolling:direction");
 
         m_config.configuredWidths.clear();
@@ -495,32 +496,28 @@ CScrollingAlgorithm::CScrollingAlgorithm() {
         m_scrollingData->controller->setDirection(parseDirection(*PCONFDIRECTION));
     });
 
-    m_mouseButtonCallback = g_pHookSystem->hookDynamic("mouseButton", [this](void* self, SCallbackInfo& info, std::any e) {
-        auto E = std::any_cast<IPointer::SButtonEvent>(e);
-        if (E.state == WL_POINTER_BUTTON_STATE_RELEASED && Desktop::focusState()->window())
+    m_mouseButtonCallback = Event::bus()->m_events.input.mouse.button.listen([this](IPointer::SButtonEvent e, Event::SCallbackInfo&) {
+        if (e.state == WL_POINTER_BUTTON_STATE_RELEASED && Desktop::focusState()->window())
             focusOnInput(Desktop::focusState()->window()->layoutTarget(), true);
     });
 
-    m_focusCallback = g_pHookSystem->hookDynamic("activeWindow", [this](void* hk, SCallbackInfo& info, std::any param) {
-        const auto E       = std::any_cast<Desktop::View::SWindowActiveEvent>(param);
-        const auto PWINDOW = E.window;
-
-        if (!PWINDOW)
+    m_focusCallback = Event::bus()->m_events.window.active.listen([this](PHLWINDOW pWindow, Desktop::eFocusReason reason) {
+        if (!pWindow)
             return;
 
         static const auto PFOLLOW_FOCUS = CConfigValue<Hyprlang::INT>("scrolling:follow_focus");
 
-        if (!*PFOLLOW_FOCUS && !Desktop::isHardInputFocusReason(E.reason))
+        if (!*PFOLLOW_FOCUS && !Desktop::isHardInputFocusReason(reason))
             return;
 
-        if (PWINDOW->m_workspace != m_parent->space()->workspace())
+        if (pWindow->m_workspace != m_parent->space()->workspace())
             return;
 
-        const auto TARGET = PWINDOW->layoutTarget();
+        const auto TARGET = pWindow->layoutTarget();
         if (!TARGET || TARGET->floating())
             return;
 
-        focusOnInput(TARGET, Desktop::isHardInputFocusReason(E.reason));
+        focusOnInput(TARGET, Desktop::isHardInputFocusReason(reason));
     });
 
     // Initialize default widths and direction
diff --git a/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.hpp b/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.hpp
index a2a9316e..109aa99e 100644
--- a/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.hpp
+++ b/src/layout/algorithm/tiled/scrolling/ScrollingAlgorithm.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
 #include "../../TiledAlgorithm.hpp"
-#include "../../../../managers/HookSystemManager.hpp"
 #include "../../../../helpers/math/Direction.hpp"
 #include "ScrollTapeController.hpp"
+#include "../../../../helpers/signal/Signal.hpp"
 
 #include <vector>
 
@@ -112,11 +112,11 @@ namespace Layout::Tiled {
         CBox                                     usableArea();
 
       private:
-        SP<SScrollingData>   m_scrollingData;
+        SP<SScrollingData>  m_scrollingData;
 
-        SP<HOOK_CALLBACK_FN> m_configCallback;
-        SP<HOOK_CALLBACK_FN> m_focusCallback;
-        SP<HOOK_CALLBACK_FN> m_mouseButtonCallback;
+        CHyprSignalListener m_configCallback;
+        CHyprSignalListener m_focusCallback;
+        CHyprSignalListener m_mouseButtonCallback;
 
         struct {
             std::vector<float> configuredWidths;