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-rw-r--r--dom/commandhandler/nsCommandParams.h166
1 files changed, 166 insertions, 0 deletions
diff --git a/dom/commandhandler/nsCommandParams.h b/dom/commandhandler/nsCommandParams.h
new file mode 100644
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+++ b/dom/commandhandler/nsCommandParams.h
@@ -0,0 +1,166 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 nsCommandParams_h
+#define nsCommandParams_h
+
+#include "mozilla/ErrorResult.h"
+#include "nsString.h"
+#include "nsICommandParams.h"
+#include "nsCOMPtr.h"
+#include "PLDHashTable.h"
+
+class nsCommandParams : public nsICommandParams {
+ using ErrorResult = mozilla::ErrorResult;
+ using IgnoredErrorResult = mozilla::IgnoredErrorResult;
+
+ public:
+ nsCommandParams();
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSICOMMANDPARAMS
+
+ bool GetBool(const char* aName, ErrorResult& aRv) const;
+ inline bool GetBool(const char* aName) const {
+ IgnoredErrorResult error;
+ return GetBool(aName, error);
+ }
+ int32_t GetInt(const char* aName, ErrorResult& aRv) const;
+ inline int32_t GetInt(const char* aName) const {
+ IgnoredErrorResult error;
+ return GetInt(aName, error);
+ }
+ double GetDouble(const char* aName, ErrorResult& aRv) const;
+ inline double GetDouble(const char* aName) const {
+ IgnoredErrorResult error;
+ return GetDouble(aName, error);
+ }
+ nsresult GetString(const char* aName, nsAString& aValue) const;
+ nsresult GetCString(const char* aName, nsACString& aValue) const;
+ already_AddRefed<nsISupports> GetISupports(const char* aName,
+ ErrorResult& aRv) const;
+ inline already_AddRefed<nsISupports> GetISupports(const char* aName) const {
+ IgnoredErrorResult error;
+ return GetISupports(aName, error);
+ }
+
+ nsresult SetBool(const char* aName, bool aValue);
+ nsresult SetInt(const char* aName, int32_t aValue);
+ nsresult SetDouble(const char* aName, double aValue);
+ nsresult SetString(const char* aName, const nsAString& aValue);
+ nsresult SetCString(const char* aName, const nsACString& aValue);
+ nsresult SetISupports(const char* aName, nsISupports* aValue);
+
+ protected:
+ virtual ~nsCommandParams();
+
+ struct HashEntry : public PLDHashEntryHdr {
+ nsCString mEntryName;
+
+ uint8_t mEntryType;
+ union {
+ bool mBoolean;
+ int32_t mLong;
+ double mDouble;
+ nsString* mString;
+ nsCString* mCString;
+ } mData;
+
+ nsCOMPtr<nsISupports> mISupports;
+
+ HashEntry(uint8_t aType, const char* aEntryName)
+ : mEntryName(aEntryName), mEntryType(aType), mData() {
+ Reset(mEntryType);
+ }
+
+ explicit HashEntry(const HashEntry& aRHS) : mEntryType(aRHS.mEntryType) {
+ Reset(mEntryType);
+ switch (mEntryType) {
+ case eBooleanType:
+ mData.mBoolean = aRHS.mData.mBoolean;
+ break;
+ case eLongType:
+ mData.mLong = aRHS.mData.mLong;
+ break;
+ case eDoubleType:
+ mData.mDouble = aRHS.mData.mDouble;
+ break;
+ case eWStringType:
+ NS_ASSERTION(aRHS.mData.mString, "Source entry has no string");
+ mData.mString = new nsString(*aRHS.mData.mString);
+ break;
+ case eStringType:
+ NS_ASSERTION(aRHS.mData.mCString, "Source entry has no string");
+ mData.mCString = new nsCString(*aRHS.mData.mCString);
+ break;
+ case eISupportsType:
+ mISupports = aRHS.mISupports.get();
+ break;
+ default:
+ NS_ERROR("Unknown type");
+ }
+ }
+
+ ~HashEntry() { Reset(eNoType); }
+
+ void Reset(uint8_t aNewType) {
+ switch (mEntryType) {
+ case eNoType:
+ break;
+ case eBooleanType:
+ mData.mBoolean = false;
+ break;
+ case eLongType:
+ mData.mLong = 0;
+ break;
+ case eDoubleType:
+ mData.mDouble = 0.0;
+ break;
+ case eWStringType:
+ delete mData.mString;
+ mData.mString = nullptr;
+ break;
+ case eISupportsType:
+ mISupports = nullptr;
+ break;
+ case eStringType:
+ delete mData.mCString;
+ mData.mCString = nullptr;
+ break;
+ default:
+ NS_ERROR("Unknown type");
+ }
+ mEntryType = aNewType;
+ }
+ };
+
+ HashEntry* GetNamedEntry(const char* aName) const;
+ HashEntry* GetOrMakeEntry(const char* aName, uint8_t aEntryType);
+
+ protected:
+ static PLDHashNumber HashKey(const void* aKey);
+
+ static bool HashMatchEntry(const PLDHashEntryHdr* aEntry, const void* aKey);
+
+ static void HashMoveEntry(PLDHashTable* aTable, const PLDHashEntryHdr* aFrom,
+ PLDHashEntryHdr* aTo);
+
+ static void HashClearEntry(PLDHashTable* aTable, PLDHashEntryHdr* aEntry);
+
+ PLDHashTable mValuesHash;
+
+ static const PLDHashTableOps sHashOps;
+};
+
+nsCommandParams* nsICommandParams::AsCommandParams() {
+ return static_cast<nsCommandParams*>(this);
+}
+
+const nsCommandParams* nsICommandParams::AsCommandParams() const {
+ return static_cast<const nsCommandParams*>(this);
+}
+
+#endif // nsCommandParams_h