Auto merge of #24013 - paulrouget:gestureCapture, r=jdm

[hololens] Gesture capture

I can't reproduce #24010 but I think this should fix it.

Fix #24010

Depends on #24008

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24013)
<!-- Reviewable:end -->

5 files changed, 68 insertions, 19 deletions

diff --git a/support/hololens/ServoApp/BrowserPage.cpp b/support/hololens/ServoApp/BrowserPage.cpp
index 0db7a055cec..617ef66e27d 100644
--- a/support/hololens/ServoApp/BrowserPage.cpp
+++ b/support/hololens/ServoApp/BrowserPage.cpp
@@ -35,6 +35,12 @@ void BrowserPage::BindServoEvents() {
     reloadButton().IsEnabled(true);
     stopButton().IsEnabled(false);
   });
+  servoControl().OnCaptureGesturesStarted([=] {
+    servoControl().Focus(FocusState::Programmatic);
+    navigationBar().IsHitTestVisible(false);
+  });
+  servoControl().OnCaptureGesturesEnded(
+      [=] { navigationBar().IsHitTestVisible(true); });
 }
 
 void BrowserPage::LoadServoURI(Uri uri) {
diff --git a/support/hololens/ServoApp/BrowserPage.xaml b/support/hololens/ServoApp/BrowserPage.xaml
index 5a99683e95d..50f5c7972ab 100644
--- a/support/hololens/ServoApp/BrowserPage.xaml
+++ b/support/hololens/ServoApp/BrowserPage.xaml
@@ -13,7 +13,7 @@
       <RowDefinition Height="auto"/>
       <RowDefinition Height="*"/>
     </Grid.RowDefinitions>
-    <Grid Grid.Row="0">
+    <Grid Grid.Row="0" x:Name="navigationBar">
       <Grid.ColumnDefinitions>
         <ColumnDefinition Width="auto"/>
         <ColumnDefinition Width="*"/>
diff --git a/support/hololens/ServoApp/ServoControl/ServoControl.cpp b/support/hololens/ServoApp/ServoControl/ServoControl.cpp
index d0fcde7681f..4c01dac15f8 100644
--- a/support/hololens/ServoApp/ServoControl/ServoControl.cpp
+++ b/support/hololens/ServoApp/ServoControl/ServoControl.cpp
@@ -32,9 +32,22 @@ void ServoControl::Shutdown() {
 }
 
 void ServoControl::OnLoaded(IInspectable const &, RoutedEventArgs const &) {
-  Panel().PointerReleased(
+  auto panel = Panel();
+  panel.PointerReleased(
       std::bind(&ServoControl::OnSurfaceClicked, this, _1, _2));
-  Panel().ManipulationDelta(
+  panel.ManipulationStarted(
+      [=](IInspectable const &,
+         Input::ManipulationStartedRoutedEventArgs const &e) {
+        mOnCaptureGesturesStartedEvent();
+        e.Handled(true);
+      });
+  panel.ManipulationCompleted(
+      [=](IInspectable const &,
+         Input::ManipulationCompletedRoutedEventArgs const &e) {
+        mOnCaptureGesturesEndedEvent();
+        e.Handled(true);
+      });
+  panel.ManipulationDelta(
       std::bind(&ServoControl::OnSurfaceManipulationDelta, this, _1, _2));
   InitializeConditionVariable(&mGLCondVar);
   InitializeCriticalSection(&mGLLock);
diff --git a/support/hololens/ServoApp/ServoControl/ServoControl.h b/support/hololens/ServoApp/ServoControl/ServoControl.h
index f8159ca8d6c..5d571830490 100644
--- a/support/hololens/ServoApp/ServoControl/ServoControl.h
+++ b/support/hololens/ServoApp/ServoControl/ServoControl.h
@@ -15,34 +15,59 @@ struct ServoControl : ServoControlT<ServoControl>, public servo::ServoDelegate {
   void Shutdown();
   Windows::Foundation::Uri LoadURIOrSearch(hstring);
 
-  void OnLoaded(IInspectable const &, Windows::UI::Xaml::RoutedEventArgs const &);
+  void OnLoaded(IInspectable const &,
+                Windows::UI::Xaml::RoutedEventArgs const &);
 
   winrt::event_token
-  OnURLChanged(Windows::Foundation::EventHandler<hstring> const &handler){
+  OnURLChanged(Windows::Foundation::EventHandler<hstring> const &handler) {
     return mOnURLChangedEvent.add(handler);
   };
-  void OnURLChanged(winrt::event_token const& token) noexcept { mOnURLChangedEvent.remove(token); }
+  void OnURLChanged(winrt::event_token const &token) noexcept {
+    mOnURLChangedEvent.remove(token);
+  }
 
   winrt::event_token
-  OnTitleChanged(Windows::Foundation::EventHandler<hstring> const &handler){
+  OnTitleChanged(Windows::Foundation::EventHandler<hstring> const &handler) {
     return mOnTitleChangedEvent.add(handler);
   };
-  void OnTitleChanged(winrt::event_token const& token) noexcept { mOnTitleChangedEvent.remove(token); }
+  void OnTitleChanged(winrt::event_token const &token) noexcept {
+    mOnTitleChangedEvent.remove(token);
+  }
 
-  winrt::event_token OnHistoryChanged(HistoryChangedDelegate const &handler){
+  winrt::event_token OnHistoryChanged(HistoryChangedDelegate const &handler) {
     return mOnHistoryChangedEvent.add(handler);
   };
-  void OnHistoryChanged(winrt::event_token const& token) noexcept { mOnHistoryChangedEvent.remove(token); }
+  void OnHistoryChanged(winrt::event_token const &token) noexcept {
+    mOnHistoryChangedEvent.remove(token);
+  }
 
-  winrt::event_token OnLoadStarted(LoadStatusChangedDelegate const &handler){
+  winrt::event_token OnLoadStarted(EventDelegate const &handler) {
     return mOnLoadStartedEvent.add(handler);
   };
-  void OnLoadStarted(winrt::event_token const& token) noexcept { mOnLoadStartedEvent.remove(token); }
+  void OnLoadStarted(winrt::event_token const &token) noexcept {
+    mOnLoadStartedEvent.remove(token);
+  }
 
-  winrt::event_token OnLoadEnded(LoadStatusChangedDelegate const &handler){
+  winrt::event_token OnLoadEnded(EventDelegate const &handler) {
     return mOnLoadEndedEvent.add(handler);
   };
-  void OnLoadEnded(winrt::event_token const& token) noexcept { mOnLoadEndedEvent.remove(token); }
+  void OnLoadEnded(winrt::event_token const &token) noexcept {
+    mOnLoadEndedEvent.remove(token);
+  }
+
+  winrt::event_token OnCaptureGesturesStarted(EventDelegate const &handler) {
+    return mOnCaptureGesturesStartedEvent.add(handler);
+  };
+  void OnCaptureGesturesStarted(winrt::event_token const &token) noexcept {
+    mOnCaptureGesturesStartedEvent.remove(token);
+  }
+
+    winrt::event_token OnCaptureGesturesEnded(EventDelegate const &handler) {
+    return mOnCaptureGesturesEndedEvent.add(handler);
+  };
+  void OnCaptureGesturesEnded(winrt::event_token const &token) noexcept {
+    mOnCaptureGesturesEndedEvent.remove(token);
+  }
 
   virtual void WakeUp();
   virtual void OnServoLoadStarted();
@@ -62,8 +87,11 @@ private:
   winrt::event<Windows::Foundation::EventHandler<hstring>> mOnURLChangedEvent;
   winrt::event<Windows::Foundation::EventHandler<hstring>> mOnTitleChangedEvent;
   winrt::event<HistoryChangedDelegate> mOnHistoryChangedEvent;
-  winrt::event<LoadStatusChangedDelegate> mOnLoadStartedEvent;
-  winrt::event<LoadStatusChangedDelegate> mOnLoadEndedEvent;
+  winrt::event<EventDelegate> mOnLoadStartedEvent;
+  winrt::event<EventDelegate> mOnLoadEndedEvent;
+  winrt::event<EventDelegate> mOnCaptureGesturesStartedEvent;
+  winrt::event<EventDelegate> mOnCaptureGesturesEndedEvent;
+
   hstring mInitialURL = L"https://servo.org";
 
   Windows::UI::Xaml::Controls::SwapChainPanel ServoControl::Panel();
diff --git a/support/hololens/ServoApp/ServoControl/ServoControl.idl b/support/hololens/ServoApp/ServoControl/ServoControl.idl
index dcdc9e051f3..f392b1fcbf8 100644
--- a/support/hololens/ServoApp/ServoControl/ServoControl.idl
+++ b/support/hololens/ServoApp/ServoControl/ServoControl.idl
@@ -1,6 +1,6 @@
 namespace ServoApp {
 
-  delegate void LoadStatusChangedDelegate();
+  delegate void EventDelegate();
   delegate void HistoryChangedDelegate(Boolean back, Boolean forward);
 
   runtimeclass ServoControl : Windows.UI.Xaml.Controls.Control {
@@ -11,8 +11,10 @@ namespace ServoApp {
       void Stop();
       Windows.Foundation.Uri LoadURIOrSearch(String url);
       void Shutdown();
-      event LoadStatusChangedDelegate OnLoadStarted;
-      event LoadStatusChangedDelegate OnLoadEnded;
+      event EventDelegate OnLoadStarted;
+      event EventDelegate OnLoadEnded;
+      event EventDelegate OnCaptureGesturesStarted;
+      event EventDelegate OnCaptureGesturesEnded;
       event HistoryChangedDelegate OnHistoryChanged;
       event Windows.Foundation.EventHandler<String> OnTitleChanged;
       event Windows.Foundation.EventHandler<String> OnURLChanged;