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chrome/src/nsChromeRegistryChrome.h@97036ab72558 (annotated)

chrome/src/nsChromeRegistryChrome.h

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#ifndef nsChromeRegistryChrome_h
michael@0	7	#define nsChromeRegistryChrome_h
michael@0	8
michael@0	9	#include "nsCOMArray.h"
michael@0	10	#include "nsChromeRegistry.h"
michael@0	11	#include "nsVoidArray.h"
michael@0	12	#include "mozilla/Move.h"
michael@0	13
michael@0	14	namespace mozilla {
michael@0	15	namespace dom {
michael@0	16	class PContentParent;
michael@0	17	}
michael@0	18	}
michael@0	19
michael@0	20	class nsIPrefBranch;
michael@0	21
michael@0	22	class nsChromeRegistryChrome : public nsChromeRegistry
michael@0	23	{
michael@0	24	public:
michael@0	25	nsChromeRegistryChrome();
michael@0	26	~nsChromeRegistryChrome();
michael@0	27
michael@0	28	nsresult Init() MOZ_OVERRIDE;
michael@0	29
michael@0	30	NS_IMETHOD CheckForNewChrome() MOZ_OVERRIDE;
michael@0	31	NS_IMETHOD CheckForOSAccessibility() MOZ_OVERRIDE;
michael@0	32	NS_IMETHOD GetLocalesForPackage(const nsACString& aPackage,
michael@0	33	nsIUTF8StringEnumerator* *aResult) MOZ_OVERRIDE;
michael@0	34	NS_IMETHOD IsLocaleRTL(const nsACString& package,
michael@0	35	bool *aResult) MOZ_OVERRIDE;
michael@0	36	NS_IMETHOD GetSelectedLocale(const nsACString& aPackage,
michael@0	37	nsACString& aLocale) MOZ_OVERRIDE;
michael@0	38	NS_IMETHOD Observe(nsISupports *aSubject, const char *aTopic,
michael@0	39	const char16_t *someData) MOZ_OVERRIDE;
michael@0	40
michael@0	41	#ifdef MOZ_XUL
michael@0	42	NS_IMETHOD GetXULOverlays(nsIURI *aURI,
michael@0	43	nsISimpleEnumerator **_retval) MOZ_OVERRIDE;
michael@0	44	NS_IMETHOD GetStyleOverlays(nsIURI *aURI,
michael@0	45	nsISimpleEnumerator **_retval) MOZ_OVERRIDE;
michael@0	46	#endif
michael@0	47
michael@0	48	void SendRegisteredChrome(mozilla::dom::PContentParent* aChild);
michael@0	49
michael@0	50	private:
michael@0	51	static PLDHashOperator CollectPackages(PLDHashTable *table,
michael@0	52	PLDHashEntryHdr *entry,
michael@0	53	uint32_t number, void *arg);
michael@0	54
michael@0	55	nsresult OverrideLocalePackage(const nsACString& aPackage,
michael@0	56	nsACString& aOverride);
michael@0	57	nsresult SelectLocaleFromPref(nsIPrefBranch* prefs);
michael@0	58	nsresult UpdateSelectedLocale() MOZ_OVERRIDE;
michael@0	59	nsIURI* GetBaseURIFromPackage(const nsCString& aPackage,
michael@0	60	const nsCString& aProvider,
michael@0	61	const nsCString& aPath) MOZ_OVERRIDE;
michael@0	62	nsresult GetFlagsFromPackage(const nsCString& aPackage,
michael@0	63	uint32_t* aFlags) MOZ_OVERRIDE;
michael@0	64
michael@0	65	static const PLDHashTableOps kTableOps;
michael@0	66	static PLDHashNumber HashKey(PLDHashTable *table, const void *key);
michael@0	67	static bool MatchKey(PLDHashTable *table, const PLDHashEntryHdr *entry,
michael@0	68	const void *key);
michael@0	69	static void ClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry);
michael@0	70	static bool InitEntry(PLDHashTable *table, PLDHashEntryHdr *entry,
michael@0	71	const void *key);
michael@0	72
michael@0	73	struct ProviderEntry
michael@0	74	{
michael@0	75	ProviderEntry(const nsACString& aProvider, nsIURI* aBase) :
michael@0	76	provider(aProvider),
michael@0	77	baseURI(aBase) { }
michael@0	78
michael@0	79	nsCString provider;
michael@0	80	nsCOMPtr<nsIURI> baseURI;
michael@0	81	};
michael@0	82
michael@0	83	class nsProviderArray
michael@0	84	{
michael@0	85	public:
michael@0	86	nsProviderArray() :
michael@0	87	mArray(1) { }
michael@0	88	~nsProviderArray()
michael@0	89	{ Clear(); }
michael@0	90
michael@0	91	// When looking up locales and skins, the "selected" locale is not always
michael@0	92	// available. This enum identifies what kind of match is desired/found.
michael@0	93	enum MatchType {
michael@0	94	EXACT = 0,
michael@0	95	LOCALE = 1, // "en-GB" is selected, we found "en-US"
michael@0	96	ANY = 2
michael@0	97	};
michael@0	98
michael@0	99	nsIURI* GetBase(const nsACString& aPreferred, MatchType aType);
michael@0	100	const nsACString& GetSelected(const nsACString& aPreferred, MatchType aType);
michael@0	101	void SetBase(const nsACString& aProvider, nsIURI* base);
michael@0	102	void EnumerateToArray(nsTArray<nsCString> *a);
michael@0	103	void Clear();
michael@0	104
michael@0	105	private:
michael@0	106	ProviderEntry* GetProvider(const nsACString& aPreferred, MatchType aType);
michael@0	107
michael@0	108	nsVoidArray mArray;
michael@0	109	};
michael@0	110
michael@0	111	struct PackageEntry : public PLDHashEntryHdr
michael@0	112	{
michael@0	113	PackageEntry(const nsACString& package)
michael@0	114	: package(package), flags(0) { }
michael@0	115	~PackageEntry() { }
michael@0	116
michael@0	117	nsCString package;
michael@0	118	nsCOMPtr<nsIURI> baseURI;
michael@0	119	uint32_t flags;
michael@0	120	nsProviderArray locales;
michael@0	121	nsProviderArray skins;
michael@0	122	};
michael@0	123
michael@0	124	class OverlayListEntry : public nsURIHashKey
michael@0	125	{
michael@0	126	public:
michael@0	127	typedef nsURIHashKey::KeyType KeyType;
michael@0	128	typedef nsURIHashKey::KeyTypePointer KeyTypePointer;
michael@0	129
michael@0	130	OverlayListEntry(KeyTypePointer aKey) : nsURIHashKey(aKey) { }
michael@0	131	OverlayListEntry(OverlayListEntry&& toMove) : nsURIHashKey(mozilla::Move(toMove)),
michael@0	132	mArray(mozilla::Move(toMove.mArray)) { }
michael@0	133	~OverlayListEntry() { }
michael@0	134
michael@0	135	void AddURI(nsIURI* aURI);
michael@0	136
michael@0	137	nsCOMArray<nsIURI> mArray;
michael@0	138	};
michael@0	139
michael@0	140	class OverlayListHash
michael@0	141	{
michael@0	142	public:
michael@0	143	OverlayListHash() { }
michael@0	144	~OverlayListHash() { }
michael@0	145
michael@0	146	void Add(nsIURI* aBase, nsIURI* aOverlay);
michael@0	147	void Clear() { mTable.Clear(); }
michael@0	148	const nsCOMArray<nsIURI>* GetArray(nsIURI* aBase);
michael@0	149
michael@0	150	private:
michael@0	151	nsTHashtable<OverlayListEntry> mTable;
michael@0	152	};
michael@0	153
michael@0	154	// Hashes on the file to be overlaid (chrome://browser/content/browser.xul)
michael@0	155	// to a list of overlays/stylesheets
michael@0	156	OverlayListHash mOverlayHash;
michael@0	157	OverlayListHash mStyleHash;
michael@0	158
michael@0	159	bool mProfileLoaded;
michael@0	160
michael@0	161	nsCString mSelectedLocale;
michael@0	162	nsCString mSelectedSkin;
michael@0	163
michael@0	164	// Hash of package names ("global") to PackageEntry objects
michael@0	165	PLDHashTable mPackagesHash;
michael@0	166
michael@0	167	virtual void ManifestContent(ManifestProcessingContext& cx, int lineno,
michael@0	168	char *const * argv, bool platform,
michael@0	169	bool contentaccessible);
michael@0	170	virtual void ManifestLocale(ManifestProcessingContext& cx, int lineno,
michael@0	171	char *const * argv, bool platform,
michael@0	172	bool contentaccessible);
michael@0	173	virtual void ManifestSkin(ManifestProcessingContext& cx, int lineno,
michael@0	174	char *const * argv, bool platform,
michael@0	175	bool contentaccessible);
michael@0	176	virtual void ManifestOverlay(ManifestProcessingContext& cx, int lineno,
michael@0	177	char *const * argv, bool platform,
michael@0	178	bool contentaccessible);
michael@0	179	virtual void ManifestStyle(ManifestProcessingContext& cx, int lineno,
michael@0	180	char *const * argv, bool platform,
michael@0	181	bool contentaccessible);
michael@0	182	virtual void ManifestOverride(ManifestProcessingContext& cx, int lineno,
michael@0	183	char *const * argv, bool platform,
michael@0	184	bool contentaccessible);
michael@0	185	virtual void ManifestResource(ManifestProcessingContext& cx, int lineno,
michael@0	186	char *const * argv, bool platform,
michael@0	187	bool contentaccessible);
michael@0	188	};
michael@0	189
michael@0	190	#endif // nsChromeRegistryChrome_h