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1 files changed, 71 insertions, 0 deletions

diff --git a/src/ui/style/Condition.cpp b/src/ui/style/Condition.cpp
new file mode 100644
index 00000000..bc24e265
--- /dev/null
+++ b/src/ui/style/Condition.cpp
@@ -0,0 +1,71 @@
+#include "cru/ui/style/Condition.hpp"
+
+#include "cru/common/Event.hpp"
+#include "cru/ui/controls/Control.hpp"
+#include "cru/ui/controls/IClickableControl.hpp"
+#include "cru/ui/helper/ClickDetector.hpp"
+
+namespace cru::ui::style {
+CompoundCondition::CompoundCondition(std::vector<Condition*> conditions)
+    : conditions_(std::move(conditions)) {}
+
+std::vector<IBaseEvent*> CompoundCondition::ChangeOn(
+    controls::Control* control) const {
+  std::vector<IBaseEvent*> result;
+
+  for (auto condition : GetConditions()) {
+    for (auto e : condition->ChangeOn(control)) {
+      result.push_back(e);
+    }
+  }
+
+  return result;
+}
+
+bool AndCondition::Judge(controls::Control* control) const {
+  for (auto condition : GetConditions()) {
+    if (!condition->Judge(control)) return false;
+  }
+  return true;
+}
+
+bool OrCondition::Judge(controls::Control* control) const {
+  for (auto condition : GetConditions()) {
+    if (condition->Judge(control)) return true;
+  }
+  return false;
+}
+
+FocusCondition::FocusCondition(bool has_focus) : has_focus_(has_focus) {}
+
+std::vector<IBaseEvent*> FocusCondition::ChangeOn(
+    controls::Control* control) const {
+  return {control->GainFocusEvent()->Direct(),
+          control->LoseFocusEvent()->Direct()};
+}
+
+bool FocusCondition::Judge(controls::Control* control) const {
+  return control->HasFocus() == has_focus_;
+}
+
+ClickStateCondition::ClickStateCondition(helper::ClickState click_state)
+    : click_state_(click_state) {}
+
+std::vector<IBaseEvent*> ClickStateCondition::ChangeOn(
+    controls::Control* control) const {
+  auto clickable_control = dynamic_cast<controls::IClickableControl*>(control);
+  if (clickable_control) {
+    return {clickable_control->ClickStateChangeEvent()};
+  } else {
+    return {};
+  }
+}
+
+bool ClickStateCondition::Judge(controls::Control* control) const {
+  auto clickable_control = dynamic_cast<controls::IClickableControl*>(control);
+  if (clickable_control) {
+    return clickable_control->GetClickState() == click_state_;
+  }
+  return false;
+}
+}  // namespace cru::ui::style