From fde24556042b76863bdec34dcc213cb7298f68f9 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 28 Oct 2020 16:17:20 +0800
Subject: ...

---
 src/ui/ShortcutHub.cpp | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

(limited to 'src/ui/ShortcutHub.cpp')

diff --git a/src/ui/ShortcutHub.cpp b/src/ui/ShortcutHub.cpp
index e5847f8c..145cfa87 100644
--- a/src/ui/ShortcutHub.cpp
+++ b/src/ui/ShortcutHub.cpp
@@ -1,5 +1,11 @@
 #include "cru/ui/ShortcutHub.hpp"
+
+#include "cru/common/Logger.hpp"
+#include "cru/ui/Control.hpp"
+#include "cru/ui/DebugFlags.hpp"
+
 #include <algorithm>
+#include <functional>
 #include <iterator>
 #include <optional>
 
@@ -55,4 +61,60 @@ const std::vector<ShortcutInfo>& ShortcutHub::GetShortcutByKeyBind(
   if (result != map_.cend()) return result->second;
   return empty_list_;
 }
+
+void ShortcutHub::Install(Control* control) {
+  if (!event_guard_.IsEmpty()) {
+    log::Error(u"Shortcut hub is already installed. Failed to install.");
+    return;
+  }
+
+  event_guard_ += control->KeyDownEvent()->Bubble()->AddHandler(
+      std::bind(&ShortcutHub::OnKeyDown, this, std::placeholders::_1));
+}
+
+void ShortcutHub::Uninstall() {
+  if (event_guard_.IsEmpty()) {
+    log::Warn(u"Shortcut hub is not installed. Failed to uninstall.");
+    return;
+  }
+
+  event_guard_.Clear();
+}
+
+void ShortcutHub::OnKeyDown(event::KeyEventArgs& event) {
+  ShortcutKeyBind key_bind(event.GetKeyCode(), event.GetKeyModifier());
+  const auto& shortcut_list = this->GetShortcutByKeyBind(key_bind);
+
+  if constexpr (debug_flags::shortcut) {
+    if (shortcut_list.empty()) {
+      log::Debug(u"No shortcut for key bind {}.", key_bind.ToString());
+    }
+    log::Debug(u"Begin to handle shortcut for key bind {}.",
+               key_bind.ToString());
+  }
+
+  for (const auto& shortcut : shortcut_list) {
+    auto is_handled = shortcut.handler();
+    if (is_handled) {
+      if constexpr (debug_flags::shortcut) {
+        log::Debug(u"Handle {} handled it.", shortcut.name);
+      }
+
+      event.SetHandled();
+
+      break;
+    } else {
+      if constexpr (debug_flags::shortcut) {
+        log::Debug(u"Handle {} disdn't handle it.", shortcut.name);
+      }
+    }
+  }
+
+  if constexpr (debug_flags::shortcut) {
+    if (!shortcut_list.empty()) {
+      log::Debug(u"End handling shortcut for key bind {}.",
+                 key_bind.ToString());
+    }
+  }
+}
 }  // namespace cru::ui
-- 
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