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-rw-r--r--dom/media/TextTrackRegion.h172
1 files changed, 172 insertions, 0 deletions
diff --git a/dom/media/TextTrackRegion.h b/dom/media/TextTrackRegion.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 et tw=78: */
+/* 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_TextTrackRegion_h
+#define mozilla_dom_TextTrackRegion_h
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsString.h"
+#include "nsWrapperCache.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/TextTrack.h"
+#include "mozilla/Preferences.h"
+
+namespace mozilla {
+namespace dom {
+
+class GlobalObject;
+class TextTrack;
+
+class TextTrackRegion final : public nsISupports,
+ public nsWrapperCache
+{
+public:
+
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TextTrackRegion)
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ nsISupports* GetParentObject() const
+ {
+ return mParent;
+ }
+
+ explicit TextTrackRegion(nsISupports* aGlobal);
+
+ /** WebIDL Methods. */
+
+ static already_AddRefed<TextTrackRegion>
+ Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
+
+ double Lines() const
+ {
+ return mLines;
+ }
+
+ void SetLines(double aLines)
+ {
+ mLines = aLines;
+ }
+
+ double Width() const
+ {
+ return mWidth;
+ }
+
+ void SetWidth(double aWidth, ErrorResult& aRv)
+ {
+ if (!InvalidValue(aWidth, aRv)) {
+ mWidth = aWidth;
+ }
+ }
+
+ double RegionAnchorX() const
+ {
+ return mRegionAnchorX;
+ }
+
+ void SetRegionAnchorX(double aVal, ErrorResult& aRv)
+ {
+ if (!InvalidValue(aVal, aRv)) {
+ mRegionAnchorX = aVal;
+ }
+ }
+
+ double RegionAnchorY() const
+ {
+ return mRegionAnchorY;
+ }
+
+ void SetRegionAnchorY(double aVal, ErrorResult& aRv)
+ {
+ if (!InvalidValue(aVal, aRv)) {
+ mRegionAnchorY = aVal;
+ }
+ }
+
+ double ViewportAnchorX() const
+ {
+ return mViewportAnchorX;
+ }
+
+ void SetViewportAnchorX(double aVal, ErrorResult& aRv)
+ {
+ if (!InvalidValue(aVal, aRv)) {
+ mViewportAnchorX = aVal;
+ }
+ }
+
+ double ViewportAnchorY() const
+ {
+ return mViewportAnchorY;
+ }
+
+ void SetViewportAnchorY(double aVal, ErrorResult& aRv)
+ {
+ if (!InvalidValue(aVal, aRv)) {
+ mViewportAnchorY = aVal;
+ }
+ }
+
+ void GetScroll(nsAString& aScroll) const
+ {
+ aScroll = mScroll;
+ }
+
+ void SetScroll(const nsAString& aScroll, ErrorResult& aRv)
+ {
+ if (!aScroll.EqualsLiteral("") && !aScroll.EqualsLiteral("up")) {
+ aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
+ return;
+ }
+
+ mScroll = aScroll;
+ }
+
+ /** end WebIDL Methods. */
+
+
+ // Helper to aid copying of a given TextTrackRegion's width, lines,
+ // anchor, viewport and scroll values.
+ void CopyValues(TextTrackRegion& aRegion);
+
+ // -----helpers-------
+ const nsAString& Scroll() const
+ {
+ return mScroll;
+ }
+
+private:
+ ~TextTrackRegion() {}
+
+ nsCOMPtr<nsISupports> mParent;
+ double mWidth;
+ long mLines;
+ double mRegionAnchorX;
+ double mRegionAnchorY;
+ double mViewportAnchorX;
+ double mViewportAnchorY;
+ nsString mScroll;
+
+ // Helper to ensure new value is in the range: 0.0% - 100.0%; throws
+ // an IndexSizeError otherwise.
+ inline bool InvalidValue(double aValue, ErrorResult& aRv)
+ {
+ if(aValue < 0.0 || aValue > 100.0) {
+ aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
+ return true;
+ }
+
+ return false;
+ }
+
+};
+
+} //namespace dom
+} //namespace mozilla
+
+#endif //mozilla_dom_TextTrackRegion_h