From b0b86b6b9d6798d04a320060e90bd8497a7f50f9 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 20 Nov 2021 19:47:53 +0800
Subject: ...

---
 src/ui/controls/Popup.cpp       |  8 ++++++--
 src/ui/controls/RootControl.cpp | 17 +++++++++++++++++
 src/ui/controls/TextBox.cpp     |  2 +-
 3 files changed, 24 insertions(+), 3 deletions(-)

(limited to 'src/ui')

diff --git a/src/ui/controls/Popup.cpp b/src/ui/controls/Popup.cpp
index bc217bf5..515c7b31 100644
--- a/src/ui/controls/Popup.cpp
+++ b/src/ui/controls/Popup.cpp
@@ -8,15 +8,19 @@
 #include <memory>
 
 namespace cru::ui::controls {
-Popup::Popup(Control* attached_control) : RootControl(attached_control) {}
+Popup::Popup(Control* attached_control) : RootControl(attached_control) {
+  SetGainFocusOnCreateAndDestroyWhenLoseFocus(true);
+}
 
 Popup::~Popup() = default;
 
 gsl::not_null<platform::gui::INativeWindow*> Popup::CreateNativeWindow(
     gsl::not_null<host::WindowHost*> host,
     platform::gui::INativeWindow* parent) {
-  return host->CreateNativeWindow(
+  auto window = host->CreateNativeWindow(
       {parent, platform::gui::CreateWindowFlags::NoCaptionAndBorder});
+
+  return window;
 }
 
 }  // namespace cru::ui::controls
diff --git a/src/ui/controls/RootControl.cpp b/src/ui/controls/RootControl.cpp
index 015703c3..007a0ac1 100644
--- a/src/ui/controls/RootControl.cpp
+++ b/src/ui/controls/RootControl.cpp
@@ -2,6 +2,7 @@
 
 #include "cru/common/Base.hpp"
 #include "cru/platform/gui/Base.hpp"
+#include "cru/platform/gui/Window.hpp"
 #include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/render/Base.hpp"
 #include "cru/ui/render/StackLayoutRenderObject.hpp"
@@ -36,6 +37,9 @@ void RootControl::Show(bool create) {
   platform::gui::INativeWindow* native_window = GetNativeWindow(create);
   if (!native_window) return;
   native_window->SetVisible(true);
+  if (gain_focus_on_create_and_destroy_when_lose_focus_) {
+    native_window->RequestFocus();
+  }
 }
 
 platform::gui::INativeWindow* RootControl::GetNativeWindow(bool create) {
@@ -47,7 +51,20 @@ platform::gui::INativeWindow* RootControl::GetNativeWindow(bool create) {
         host, attached_control_
                   ? attached_control_->GetWindowHost()->GetNativeWindow()
                   : nullptr);
+
+    if (gain_focus_on_create_and_destroy_when_lose_focus_) {
+      native_window->FocusEvent()->AddHandler(
+          [native_window](platform::gui::FocusChangeType type) {
+            if (type == platform::gui::FocusChangeType::Lost) {
+              native_window->Close();
+            }
+          });
+    }
   }
   return native_window;
 }
+
+void RootControl::SetGainFocusOnCreateAndDestroyWhenLoseFocus(bool value) {
+  gain_focus_on_create_and_destroy_when_lose_focus_ = value;
+}
 }  // namespace cru::ui::controls
diff --git a/src/ui/controls/TextBox.cpp b/src/ui/controls/TextBox.cpp
index 622401c4..c4912307 100644
--- a/src/ui/controls/TextBox.cpp
+++ b/src/ui/controls/TextBox.cpp
@@ -28,7 +28,7 @@ TextBox::TextBox()
   border_render_object_->SetAttachedControl(this);
   scroll_render_object_->SetAttachedControl(this);
   text_render_object_->SetAttachedControl(this);
-  text_render_object_->SetMinSize(Size{100, 24});
+  text_render_object_->SetMinSize(Size{100, 0});
   text_render_object_->SetMeasureIncludingTrailingSpace(true);
 
   service_ = std::make_unique<TextHostControlService>(this);
-- 
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