tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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MVMContext.h (2800B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 #ifndef MVMContext_h_
      6 #define MVMContext_h_
      7 
      8 #include "Units.h"
      9 #include "mozilla/Maybe.h"
     10 #include "mozilla/PresShellForwards.h"
     11 #include "nsISupportsImpl.h"
     12 #include "nsStringFwd.h"
     13 #include "nsViewportInfo.h"
     14 
     15 class nsIDOMEventListener;
     16 class nsIObserver;
     17 class nsISupports;
     18 
     19 namespace mozilla::dom {
     20 enum class InteractiveWidget : uint8_t;
     21 }  // namespace mozilla::dom
     22 
     23 namespace mozilla {
     24 
     25 /**
     26 * The interface MobileViewportManager uses to interface with its surroundings.
     27 * This mainly exists to facilitate testing MobileViewportManager in isolation
     28 * from the rest of Gecko.
     29 */
     30 class MVMContext {
     31  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MVMContext)
     32 protected:
     33  virtual ~MVMContext() {}
     34 
     35 public:
     36  virtual void AddEventListener(const nsAString& aType,
     37                                nsIDOMEventListener* aListener,
     38                                bool aUseCapture) = 0;
     39  virtual void RemoveEventListener(const nsAString& aType,
     40                                   nsIDOMEventListener* aListener,
     41                                   bool aUseCapture) = 0;
     42  virtual void AddObserver(nsIObserver* aObserver, const char* aTopic,
     43                           bool aOwnsWeak) = 0;
     44  virtual void RemoveObserver(nsIObserver* aObserver, const char* aTopic) = 0;
     45  virtual void Destroy() = 0;
     46 
     47  virtual nsViewportInfo GetViewportInfo(
     48      const ScreenIntSize& aDisplaySize) const = 0;
     49  virtual CSSToLayoutDeviceScale CSSToDevPixelScale() const = 0;
     50  virtual float GetResolution() const = 0;
     51  virtual bool SubjectMatchesDocument(nsISupports* aSubject) const = 0;
     52  virtual Maybe<CSSRect> CalculateScrollableRectForRSF() const = 0;
     53  virtual bool IsResolutionUpdatedByApz() const = 0;
     54  virtual LayoutDeviceMargin ScrollbarAreaToExcludeFromCompositionBounds()
     55      const = 0;
     56  virtual Maybe<LayoutDeviceIntSize> GetDocumentViewerSize() const = 0;
     57  virtual bool AllowZoomingForDocument() const = 0;
     58  virtual bool IsInReaderMode() const = 0;
     59  virtual bool IsDocumentLoading() const = 0;
     60  virtual bool IsDocumentFullscreen() const = 0;
     61 
     62  virtual void SetResolutionAndScaleTo(float aResolution,
     63                                       ResolutionChangeOrigin aOrigin) = 0;
     64  virtual void SetVisualViewportSize(const CSSSize& aSize) = 0;
     65  virtual void PostVisualViewportResizeEventByDynamicToolbar() = 0;
     66  virtual void UpdateDisplayPortMargins() = 0;
     67 
     68  virtual void Reflow(const CSSSize& aNewSize) = 0;
     69  virtual ScreenIntCoord GetDynamicToolbarOffset() = 0;
     70  virtual dom::InteractiveWidget GetInteractiveWidgetMode() const = 0;
     71 };
     72 
     73 }  // namespace mozilla
     74 
     75 #endif  // MVMContext_h_