...

7 files changed, 100 insertions, 4 deletions

diff --git a/include/cru/ui/components/Menu.hpp b/include/cru/ui/components/Menu.hpp
index 96b21173..a72c0313 100644
--- a/include/cru/ui/components/Menu.hpp
+++ b/include/cru/ui/components/Menu.hpp
@@ -7,6 +7,7 @@
 #include "cru/ui/controls/Popup.hpp"
 #include "cru/ui/controls/TextBlock.hpp"
 
+#include <functional>
 #include <vector>
 
 namespace cru::ui::components {
@@ -25,9 +26,14 @@ class MenuItem : public Component {
 
   void SetText(String text);
 
+  void SetOnClick(std::function<void()> on_click) {
+    on_click_ = std::move(on_click);
+  }
+
  private:
   controls::Button* container_;
   controls::TextBlock* text_;
+  std::function<void()> on_click_;
 };
 
 class Menu : public Component {
@@ -49,11 +55,13 @@ class Menu : public Component {
   void AddItem(Component* component) { AddItem(component, GetItemCount()); }
   void AddItem(Component* component, gsl::index index);
   Component* RemoveItem(gsl::index index);
+  void ClearItems();
 
-  void AddTextItem(String text) {
-    AddTextItem(std::move(text), GetItemCount());
+  void AddTextItem(String text, std::function<void()> on_click) {
+    AddTextItem(std::move(text), GetItemCount(), std::move(on_click));
   }
-  void AddTextItem(String text, gsl::index index);
+  void AddTextItem(String text, gsl::index index,
+                   std::function<void()> on_click);
 
  private:
   controls::FlexLayout* container_;
@@ -77,6 +85,7 @@ class PopupMenu : public Component {
 
   void SetPosition(const Point& position);
   void Show();
+  void Close();
 
  private:
   controls::Control* attached_control_;
diff --git a/include/cru/ui/controls/Button.hpp b/include/cru/ui/controls/Button.hpp
index 9e324c62..e0335a39 100644
--- a/include/cru/ui/controls/Button.hpp
+++ b/include/cru/ui/controls/Button.hpp
@@ -39,6 +39,10 @@ class Button : public ContentControl,
     return click_detector_.StateChangeEvent();
   }
 
+  IEvent<helper::ClickEventArgs>* ClickEvent() {
+    return click_detector_.ClickEvent();
+  }
+
   void ApplyBorderStyle(const style::ApplyBorderStyleInfo& style) override;
 
  private:
diff --git a/include/cru/ui/controls/LayoutControl.hpp b/include/cru/ui/controls/LayoutControl.hpp
index 106dd94d..381df1df 100644
--- a/include/cru/ui/controls/LayoutControl.hpp
+++ b/include/cru/ui/controls/LayoutControl.hpp
@@ -18,6 +18,8 @@ class LayoutControl : public Control {
   using Control::AddChild;
   using Control::RemoveChild;
 
+  void ClearChildren();
+
  protected:
   // If container render object is not null. Render object of added or removed
   // child control will automatically sync to the container render object.
diff --git a/include/cru/ui/controls/TextHostControlService.hpp b/include/cru/ui/controls/TextHostControlService.hpp
index 6ebe2a27..5216827b 100644
--- a/include/cru/ui/controls/TextHostControlService.hpp
+++ b/include/cru/ui/controls/TextHostControlService.hpp
@@ -15,6 +15,10 @@ class TextRenderObject;
 class ScrollRenderObject;
 }  // namespace cru::ui::render
 
+namespace cru::ui::components {
+class PopupMenu;
+}
+
 namespace cru::ui::controls {
 constexpr int k_default_caret_blink_duration = 500;
 
@@ -86,6 +90,9 @@ class TextHostControlService : public Object {
   bool IsEditable() { return this->editable_; }
   void SetEditable(bool editable);
 
+  bool IsContextMenuEnabled() { return this->context_menu_enabled_; }
+  void SetContextMenuEnabled(bool enabled);
+
   bool IsMultiLine() { return this->multi_line_; }
   // If text contains line feed characters, it will be converted to space.
   void SetMultiLine(bool multi_line);
@@ -169,6 +176,15 @@ class TextHostControlService : public Object {
 
   void SetUpShortcuts();
 
+  enum ContextMenuItem : unsigned {
+    kSelectAll = 0b1,
+    kCut = 0b10,
+    kCopy = 0b100,
+    kPaste = 0b1000
+  };
+
+  void OpenContextMenu(const Point& position, ContextMenuItem items);
+
  private:
   gsl::not_null<Control*> control_;
   gsl::not_null<ITextHostControl*> text_host_control_;
@@ -182,6 +198,7 @@ class TextHostControlService : public Object {
   bool enable_ = false;
   bool editable_ = false;
   bool multi_line_ = false;
+  bool context_menu_enabled_ = true;
 
   bool caret_visible_ = false;
   platform::gui::TimerAutoCanceler caret_timer_canceler_;
@@ -191,5 +208,8 @@ class TextHostControlService : public Object {
 
   // true if left mouse is down and selecting
   bool mouse_move_selecting_ = false;
+
+  bool context_menu_dirty_ = true;
+  std::unique_ptr<components::PopupMenu> context_menu_;
 };
 }  // namespace cru::ui::controls
diff --git a/src/ui/components/Menu.cpp b/src/ui/components/Menu.cpp
index c3359cf9..60364f13 100644
--- a/src/ui/components/Menu.cpp
+++ b/src/ui/components/Menu.cpp
@@ -1,10 +1,12 @@
 #include "cru/ui/components/Menu.hpp"
+#include <functional>
 #include "cru/platform/gui/Window.hpp"
 #include "cru/ui/UiManager.hpp"
 #include "cru/ui/controls/Button.hpp"
 #include "cru/ui/controls/Control.hpp"
 #include "cru/ui/controls/FlexLayout.hpp"
 #include "cru/ui/controls/TextBlock.hpp"
+#include "cru/ui/helper/ClickDetector.hpp"
 #include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/style/StyleRuleSet.hpp"
 
@@ -15,6 +17,9 @@ MenuItem::MenuItem() {
   container_->SetChild(text_);
   container_->GetStyleRuleSet()->SetParent(
       &UiManager::GetInstance()->GetThemeResources()->menu_item_style);
+  container_->ClickEvent()->AddHandler([this](const helper::ClickEventArgs&) {
+    if (this->on_click_) this->on_click_();
+  });
 }
 
 MenuItem::MenuItem(String text) : MenuItem() { SetText(std::move(text)); }
@@ -61,8 +66,20 @@ Component* Menu::RemoveItem(gsl::index index) {
   return item;
 }
 
-void Menu::AddTextItem(String text, gsl::index index) {
+void Menu::ClearItems() {
+  for (auto item : items_) {
+    delete item;
+  }
+
+  items_.clear();
+
+  container_->ClearChildren();
+}
+
+void Menu::AddTextItem(String text, gsl::index index,
+                       std::function<void()> on_click) {
   MenuItem* item = new MenuItem(std::move(text));
+  item->SetOnClick(std::move(on_click));
   AddItem(item, index);
 }
 
@@ -94,4 +111,6 @@ void PopupMenu::Show() {
   popup_->GetWindowHost()->GetNativeWindow()->SetVisibility(
       platform::gui::WindowVisibilityType::Show);
 }
+
+void PopupMenu::Close() { popup_->GetWindowHost()->GetNativeWindow()->Close(); }
 }  // namespace cru::ui::components
diff --git a/src/ui/controls/LayoutControl.cpp b/src/ui/controls/LayoutControl.cpp
index 5954853e..e5a38445 100644
--- a/src/ui/controls/LayoutControl.cpp
+++ b/src/ui/controls/LayoutControl.cpp
@@ -3,6 +3,12 @@
 #include "cru/ui/render/RenderObject.hpp"
 
 namespace cru::ui::controls {
+void LayoutControl::ClearChildren() {
+  while (GetChildren().size() > 0) {
+    RemoveChild(0);
+  }
+}
+
 void LayoutControl::OnAddChild(Control* child, Index position) {
   if (container_render_object_ != nullptr) {
     container_render_object_->AddChild(child->GetRenderObject(), position);
diff --git a/src/ui/controls/TextHostControlService.cpp b/src/ui/controls/TextHostControlService.cpp
index b250ccae..90896632 100644
--- a/src/ui/controls/TextHostControlService.cpp
+++ b/src/ui/controls/TextHostControlService.cpp
@@ -14,12 +14,15 @@
 #include "cru/platform/gui/Window.hpp"
 #include "cru/ui/Base.hpp"
 #include "cru/ui/DebugFlags.hpp"
+#include "cru/ui/components/Menu.hpp"
 #include "cru/ui/events/UiEvent.hpp"
 #include "cru/ui/helper/ShortcutHub.hpp"
 #include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/render/ScrollRenderObject.hpp"
 #include "cru/ui/render/TextRenderObject.hpp"
 
+#include <memory>
+
 namespace cru::ui::controls {
 TextControlMovePattern TextControlMovePattern::kLeft(
     helper::ShortcutKeyBind(platform::gui::KeyCode::Left),
@@ -119,6 +122,8 @@ std::vector<TextControlMovePattern> TextControlMovePattern::kDefaultPatterns = {
 TextHostControlService::TextHostControlService(gsl::not_null<Control*> control)
     : control_(control),
       text_host_control_(dynamic_cast<ITextHostControl*>(control.get())) {
+  context_menu_ = std::make_unique<components::PopupMenu>();
+
   SetUpShortcuts();
 
   SetupOneHandler(&Control::MouseMoveEvent,
@@ -152,6 +157,16 @@ void TextHostControlService::SetEnabled(bool enable) {
   }
 }
 
+void TextHostControlService::SetContextMenuEnabled(bool enabled) {
+  if (context_menu_enabled_ == enabled) return;
+
+  context_menu_enabled_ = enabled;
+
+  if (!context_menu_enabled_ && context_menu_) {
+    context_menu_->Close();
+  }
+}
+
 void TextHostControlService::SetEditable(bool editable) {
   this->editable_ = editable;
   if (!editable) CancelComposition();
@@ -594,4 +609,25 @@ void TextHostControlService::SetUpShortcuts() {
         });
   }
 }
+
+void TextHostControlService::OpenContextMenu(const Point& position,
+                                             ContextMenuItem items) {
+  context_menu_ = std::make_unique<components::PopupMenu>();
+  auto menu = context_menu_->GetMenu();
+  if (items & ContextMenuItem::kSelectAll) {
+    menu->AddTextItem(u"Select All", [this] { this->SelectAll(); });
+  }
+  if (items & ContextMenuItem::kCopy) {
+    menu->AddTextItem(u"Copy", [this] { this->Copy(); });
+  }
+  if (items & ContextMenuItem::kCut) {
+    menu->AddTextItem(u"Cut", [this] { this->Cut(); });
+  }
+  if (items & ContextMenuItem::kPaste) {
+    menu->AddTextItem(u"Paste", [this] { this->Paste(); });
+  }
+  context_menu_->SetPosition(position);
+  context_menu_->Show();
+}
+
 }  // namespace cru::ui::controls