• file
• revisions
• annotate
• diff
• comparison
• raw

content/media/TextTrackRegion.h@44a2da4a2ab2 (annotated)

content/media/TextTrackRegion.h

Fri, 16 Jan 2015 04:50:19 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 04:50:19 +0100

branch

TOR_BUG_9701

changeset 13

44a2da4a2ab2

permissions

-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* vim:set ts=2 sw=2 et tw=78: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#ifndef mozilla_dom_TextTrackRegion_h
michael@0	8	#define mozilla_dom_TextTrackRegion_h
michael@0	9
michael@0	10	#include "nsAutoPtr.h"
michael@0	11	#include "nsCycleCollectionParticipant.h"
michael@0	12	#include "nsString.h"
michael@0	13	#include "nsWrapperCache.h"
michael@0	14	#include "mozilla/ErrorResult.h"
michael@0	15	#include "mozilla/dom/TextTrack.h"
michael@0	16	#include "mozilla/Preferences.h"
michael@0	17
michael@0	18	namespace mozilla {
michael@0	19	namespace dom {
michael@0	20
michael@0	21	class GlobalObject;
michael@0	22	class TextTrack;
michael@0	23
michael@0	24	class TextTrackRegion MOZ_FINAL : public nsISupports,
michael@0	25	public nsWrapperCache
michael@0	26	{
michael@0	27	public:
michael@0	28
michael@0	29	NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0	30	NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TextTrackRegion)
michael@0	31
michael@0	32	static bool RegionsEnabled(JSContext* cx, JSObject* obj)
michael@0	33	{
michael@0	34	return Preferences::GetBool("media.webvtt.enabled") &&
michael@0	35	Preferences::GetBool("media.webvtt.regions.enabled");
michael@0	36	}
michael@0	37
michael@0	38	virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0	39
michael@0	40	nsISupports* GetParentObject() const
michael@0	41	{
michael@0	42	return mParent;
michael@0	43	}
michael@0	44
michael@0	45	TextTrackRegion(nsISupports* aGlobal);
michael@0	46
michael@0	47	/** WebIDL Methods. */
michael@0	48
michael@0	49	static already_AddRefed<TextTrackRegion>
michael@0	50	Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
michael@0	51
michael@0	52	double Lines() const
michael@0	53	{
michael@0	54	return mLines;
michael@0	55	}
michael@0	56
michael@0	57	void SetLines(double aLines)
michael@0	58	{
michael@0	59	mLines = aLines;
michael@0	60	}
michael@0	61
michael@0	62	double Width() const
michael@0	63	{
michael@0	64	return mWidth;
michael@0	65	}
michael@0	66
michael@0	67	void SetWidth(double aWidth, ErrorResult& aRv)
michael@0	68	{
michael@0	69	if (!InvalidValue(aWidth, aRv)) {
michael@0	70	mWidth = aWidth;
michael@0	71	}
michael@0	72	}
michael@0	73
michael@0	74	double RegionAnchorX() const
michael@0	75	{
michael@0	76	return mRegionAnchorX;
michael@0	77	}
michael@0	78
michael@0	79	void SetRegionAnchorX(double aVal, ErrorResult& aRv)
michael@0	80	{
michael@0	81	if (!InvalidValue(aVal, aRv)) {
michael@0	82	mRegionAnchorX = aVal;
michael@0	83	}
michael@0	84	}
michael@0	85
michael@0	86	double RegionAnchorY() const
michael@0	87	{
michael@0	88	return mRegionAnchorY;
michael@0	89	}
michael@0	90
michael@0	91	void SetRegionAnchorY(double aVal, ErrorResult& aRv)
michael@0	92	{
michael@0	93	if (!InvalidValue(aVal, aRv)) {
michael@0	94	mRegionAnchorY = aVal;
michael@0	95	}
michael@0	96	}
michael@0	97
michael@0	98	double ViewportAnchorX() const
michael@0	99	{
michael@0	100	return mViewportAnchorX;
michael@0	101	}
michael@0	102
michael@0	103	void SetViewportAnchorX(double aVal, ErrorResult& aRv)
michael@0	104	{
michael@0	105	if (!InvalidValue(aVal, aRv)) {
michael@0	106	mViewportAnchorX = aVal;
michael@0	107	}
michael@0	108	}
michael@0	109
michael@0	110	double ViewportAnchorY() const
michael@0	111	{
michael@0	112	return mViewportAnchorY;
michael@0	113	}
michael@0	114
michael@0	115	void SetViewportAnchorY(double aVal, ErrorResult& aRv)
michael@0	116	{
michael@0	117	if (!InvalidValue(aVal, aRv)) {
michael@0	118	mViewportAnchorY = aVal;
michael@0	119	}
michael@0	120	}
michael@0	121
michael@0	122	void GetScroll(nsAString& aScroll) const
michael@0	123	{
michael@0	124	aScroll = mScroll;
michael@0	125	}
michael@0	126
michael@0	127	void SetScroll(const nsAString& aScroll, ErrorResult& aRv)
michael@0	128	{
michael@0	129	if (!aScroll.EqualsLiteral("") && !aScroll.EqualsLiteral("up")) {
michael@0	130	aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
michael@0	131	return;
michael@0	132	}
michael@0	133
michael@0	134	mScroll = aScroll;
michael@0	135	}
michael@0	136
michael@0	137	/** end WebIDL Methods. */
michael@0	138
michael@0	139
michael@0	140	// Helper to aid copying of a given TextTrackRegion's width, lines,
michael@0	141	// anchor, viewport and scroll values.
michael@0	142	void CopyValues(TextTrackRegion& aRegion);
michael@0	143
michael@0	144	// -----helpers-------
michael@0	145	const nsAString& Scroll() const
michael@0	146	{
michael@0	147	return mScroll;
michael@0	148	}
michael@0	149
michael@0	150	private:
michael@0	151	nsCOMPtr<nsISupports> mParent;
michael@0	152	double mWidth;
michael@0	153	long mLines;
michael@0	154	double mRegionAnchorX;
michael@0	155	double mRegionAnchorY;
michael@0	156	double mViewportAnchorX;
michael@0	157	double mViewportAnchorY;
michael@0	158	nsString mScroll;
michael@0	159
michael@0	160	// Helper to ensure new value is in the range: 0.0% - 100.0%; throws
michael@0	161	// an IndexSizeError otherwise.
michael@0	162	inline bool InvalidValue(double aValue, ErrorResult& aRv)
michael@0	163	{
michael@0	164	if(aValue < 0.0 || aValue > 100.0) {
michael@0	165	aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
michael@0	166	return true;
michael@0	167	}
michael@0	168
michael@0	169	return false;
michael@0	170	}
michael@0	171
michael@0	172	};
michael@0	173
michael@0	174	} //namespace dom
michael@0	175	} //namespace mozilla
michael@0	176
michael@0	177	#endif //mozilla_dom_TextTrackRegion_h