dom/base/nsDOMWindowUtils.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsDOMWindowUtils_h_
   8 #define nsDOMWindowUtils_h_
   9
  10 #include "nsWeakReference.h"
  11
  12 #include "nsIDOMWindowUtils.h"
  13 #include "mozilla/Attributes.h"
  14 #include "mozilla/BasicEvents.h"
  15 #include "mozilla/Result.h"
  16
  17 class nsGlobalWindowOuter;
  18 class nsIDocShell;
  19 class nsIWidget;
  20 class nsPresContext;
  21 class nsView;
  22 struct nsPoint;
  23
  24 namespace mozilla {
  25 class PresShell;
  26 namespace dom {
  27 class Document;
  28 class Element;
  29 }  // namespace dom
  30 namespace layers {
  31 class LayerTransactionChild;
  32 class WebRenderBridgeChild;
  33 }  // namespace layers
  34 }  // namespace mozilla
  35
  36 class nsTranslationNodeList final : public nsITranslationNodeList {
  37  public:
  38   nsTranslationNodeList() {
  39     mNodes.SetCapacity(1000);
  40     mNodeIsRoot.SetCapacity(1000);
  41     mLength = 0;
  42   }
  43
  44   NS_DECL_ISUPPORTS
  45   NS_DECL_NSITRANSLATIONNODELIST
  46
  47   void AppendElement(nsINode* aElement, bool aIsRoot) {
  48     mNodes.AppendElement(aElement);
  49     mNodeIsRoot.AppendElement(aIsRoot);
  50     mLength++;
  51   }
  52
  53  private:
  54   ~nsTranslationNodeList() = default;
  55
  56   nsTArray<nsCOMPtr<nsINode> > mNodes;
  57   nsTArray<bool> mNodeIsRoot;
  58   uint32_t mLength;
  59 };
  60
  61 class nsDOMWindowUtils final : public nsIDOMWindowUtils,
  62                                public nsSupportsWeakReference {
  63   using TextEventDispatcher = mozilla::widget::TextEventDispatcher;
  64
  65  public:
  66   explicit nsDOMWindowUtils(nsGlobalWindowOuter* aWindow);
  67   NS_DECL_ISUPPORTS
  68   NS_DECL_NSIDOMWINDOWUTILS
  69
  70  protected:
  71   ~nsDOMWindowUtils();
  72
  73   nsWeakPtr mWindow;
  74
  75   // If aOffset is non-null, it gets filled in with the offset of the root
  76   // frame of our window to the nearest widget in the app units of our window.
  77   // Add this offset to any event offset we're given to make it relative to the
  78   // widget returned by GetWidget.
  79   nsIWidget* GetWidget(nsPoint* aOffset = nullptr);
  80   nsIWidget* GetWidgetForElement(mozilla::dom::Element* aElement);
  81
  82   nsIDocShell* GetDocShell();
  83   mozilla::PresShell* GetPresShell();
  84   nsPresContext* GetPresContext();
  85   mozilla::dom::Document* GetDocument();
  86   mozilla::layers::WebRenderBridgeChild* GetWebRenderBridge();
  87   mozilla::layers::CompositorBridgeChild* GetCompositorBridge();
  88
  89   // Until callers are annotated.
  90   MOZ_CAN_RUN_SCRIPT
  91   NS_IMETHOD SendMouseEventCommon(
  92       const nsAString& aType, float aX, float aY, int32_t aButton,
  93       int32_t aClickCount, int32_t aModifiers, bool aIgnoreRootScrollFrame,
  94       float aPressure, unsigned short aInputSourceArg, uint32_t aIdentifier,
  95       bool aToWindow, bool* aPreventDefault, bool aIsDOMEventSynthesized,
  96       bool aIsWidgetEventSynthesized, int32_t aButtons);
  97
  98   MOZ_CAN_RUN_SCRIPT
  99   nsresult SendTouchEventCommon(
 100       const nsAString& aType, const nsTArray<uint32_t>& aIdentifiers,
 101       const nsTArray<int32_t>& aXs, const nsTArray<int32_t>& aYs,
 102       const nsTArray<uint32_t>& aRxs, const nsTArray<uint32_t>& aRys,
 103       const nsTArray<float>& aRotationAngles, const nsTArray<float>& aForces,
 104       const nsTArray<int32_t>& aTiltXs, const nsTArray<int32_t>& aTiltYs,
 105       const nsTArray<int32_t>& aTwists, int32_t aModifiers,
 106       bool aIgnoreRootScrollFrame, bool aIsPen, bool aToWindow,
 107       bool* aPreventDefault);
 108
 109   void ReportErrorMessageForWindow(const nsAString& aErrorMessage,
 110                                    const char* aClassification,
 111                                    bool aFromChrome);
 112
 113  private:
 114   enum class CoordsType {
 115     Screen,
 116     TopLevelWidget,
 117   };
 118   mozilla::Result<mozilla::LayoutDeviceRect, nsresult> ConvertTo(
 119       float aX, float aY, float aWidth, float aHeight, CoordsType);
 120 };
 121
 122 #endif