Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 182 insertions, 0 deletions

diff --git a/dom/base/UserActivation.h b/dom/base/UserActivation.h
new file mode 100644
index 0000000000..1ebdddccfa
--- /dev/null
+++ b/dom/base/UserActivation.h
@@ -0,0 +1,182 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_UserActivation_h
+#define mozilla_dom_UserActivation_h
+
+#include "mozilla/Assertions.h"
+#include "mozilla/EventForwards.h"
+#include "mozilla/TimeStamp.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsWrapperCache.h"
+#include "nsPIDOMWindow.h"
+
+namespace IPC {
+template <class P>
+struct ParamTraits;
+}  // namespace IPC
+
+namespace mozilla::dom {
+
+class UserActivation final : public nsISupports, public nsWrapperCache {
+ public:
+  // WebIDL UserActivation
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(UserActivation)
+
+  explicit UserActivation(nsPIDOMWindowInner* aWindow);
+
+  nsPIDOMWindowInner* GetParentObject() const { return mWindow; }
+  JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
+
+  bool HasBeenActive() const;
+  bool IsActive() const;
+
+  // End of WebIDL UserActivation
+
+  enum class State : uint8_t {
+    // Not activated.
+    None,
+    // It is considered as has-been-activated, but not transient-activated given
+    // that it is being consumed.
+    HasBeenActivated,
+    // It is considered as has-been-activated, and also transient-activated if
+    // haven't timed out.
+    FullActivated,
+    EndGuard_
+  };
+
+  class StateAndModifiers;
+
+  // Modifier keys held while the user activation.
+  class Modifiers {
+   public:
+    static constexpr uint8_t Shift = 0x10;
+    static constexpr uint8_t Meta = 0x20;
+    static constexpr uint8_t Control = 0x40;
+    static constexpr uint8_t Alt = 0x80;
+
+    static constexpr uint8_t Mask = 0xF0;
+
+    constexpr Modifiers() = default;
+    explicit constexpr Modifiers(uint8_t aModifiers) : mModifiers(aModifiers) {}
+
+    static constexpr Modifiers None() { return Modifiers(0); }
+
+    void SetShift() { mModifiers |= Shift; }
+    void SetMeta() { mModifiers |= Meta; }
+    void SetControl() { mModifiers |= Control; }
+    void SetAlt() { mModifiers |= Alt; }
+
+    bool IsShift() const { return mModifiers & Shift; }
+    bool IsMeta() const { return mModifiers & Meta; }
+    bool IsControl() const { return mModifiers & Control; }
+    bool IsAlt() const { return mModifiers & Alt; }
+
+   private:
+    uint8_t mModifiers = 0;
+
+    friend class StateAndModifiers;
+    template <class P>
+    friend struct IPC::ParamTraits;
+  };
+
+  // State and Modifiers encoded into single data, for WindowContext field.
+  class StateAndModifiers {
+   public:
+    using DataT = uint8_t;
+
+    constexpr StateAndModifiers() = default;
+    explicit constexpr StateAndModifiers(DataT aStateAndModifiers)
+        : mStateAndModifiers(aStateAndModifiers) {}
+
+    DataT GetRawData() const { return mStateAndModifiers; }
+
+    State GetState() const { return State(RawState()); }
+    void SetState(State aState) {
+      MOZ_ASSERT((uint8_t(aState) & Modifiers::Mask) == 0);
+      mStateAndModifiers = uint8_t(aState) | RawModifiers();
+    }
+
+    Modifiers GetModifiers() const { return Modifiers(RawModifiers()); }
+    void SetModifiers(Modifiers aModifiers) {
+      mStateAndModifiers = RawState() | aModifiers.mModifiers;
+    }
+
+   private:
+    uint8_t RawState() const { return mStateAndModifiers & ~Modifiers::Mask; }
+
+    uint8_t RawModifiers() const {
+      return mStateAndModifiers & Modifiers::Mask;
+    }
+
+    uint8_t mStateAndModifiers = 0;
+  };
+
+  /**
+   * Returns true if the current code is being executed as a result of
+   * user input or keyboard input.  The former includes anything that is
+   * initiated by user, with the exception of page load events or mouse
+   * over events.  And the latter returns true when one of the user inputs
+   * is an input from keyboard.  If these methods are called from asynchronously
+   * executed code, such as during layout reflows, it will return false.
+   */
+  static bool IsHandlingUserInput();
+  static bool IsHandlingKeyboardInput();
+
+  /**
+   * Returns true if the event is considered as user interaction event. I.e.,
+   * enough obvious input to allow to open popup, etc. Otherwise, returns false.
+   */
+  static bool IsUserInteractionEvent(const WidgetEvent* aEvent);
+
+  /**
+   * StartHandlingUserInput() is called when we start to handle a user input.
+   * StopHandlingUserInput() is called when we finish handling a user input.
+   * If the caller knows which input event caused that, it should set
+   * aMessage to the event message.  Otherwise, set eVoidEvent.
+   * Note that StopHandlingUserInput() caller should call it with exactly same
+   * event message as its corresponding StartHandlingUserInput() call because
+   * these methods may count the number of specific event message.
+   */
+  static void StartHandlingUserInput(EventMessage aMessage);
+  static void StopHandlingUserInput(EventMessage aMessage);
+
+  static TimeStamp GetHandlingInputStart();
+
+  /**
+   * Get the timestamp at which the latest user input was handled.
+   *
+   * Guaranteed to be monotonic. Until the first user input, return
+   * the epoch.
+   */
+  static TimeStamp LatestUserInputStart();
+
+ private:
+  ~UserActivation() = default;
+
+  nsCOMPtr<nsPIDOMWindowInner> mWindow;
+};
+
+/**
+ * This class is used while processing real user input. During this time, popups
+ * are allowed. For mousedown events, mouse capturing is also permitted.
+ */
+class MOZ_RAII AutoHandlingUserInputStatePusher final {
+ public:
+  explicit AutoHandlingUserInputStatePusher(bool aIsHandlingUserInput,
+                                            WidgetEvent* aEvent = nullptr);
+  ~AutoHandlingUserInputStatePusher();
+
+ protected:
+  EventMessage mMessage;
+  bool mIsHandlingUserInput;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_UserActivation_h