Add m-esr52 at 52.6.0

1 files changed, 284 insertions, 0 deletions

diff --git a/xpcom/ds/nsHashPropertyBag.cpp b/xpcom/ds/nsHashPropertyBag.cpp
new file mode 100644
index 0000000000..6f9fc8dec3
--- /dev/null
+++ b/xpcom/ds/nsHashPropertyBag.cpp
@@ -0,0 +1,284 @@
+/* -*- 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/. */
+
+#include "nsHashPropertyBag.h"
+#include "nsArray.h"
+#include "nsArrayEnumerator.h"
+#include "nsIVariant.h"
+#include "nsIProperty.h"
+#include "nsVariant.h"
+#include "mozilla/Attributes.h"
+
+/*
+ * nsHashPropertyBagBase implementation.
+ */
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::HasKey(const nsAString& aName, bool* aResult)
+{
+  *aResult = mPropertyHash.Get(aName, nullptr);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::Get(const nsAString& aName, nsIVariant** aResult)
+{
+  if (!mPropertyHash.Get(aName, aResult)) {
+    *aResult = nullptr;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetProperty(const nsAString& aName, nsIVariant** aResult)
+{
+  bool isFound = mPropertyHash.Get(aName, aResult);
+  if (!isFound) {
+    return NS_ERROR_FAILURE;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::SetProperty(const nsAString& aName, nsIVariant* aValue)
+{
+  if (NS_WARN_IF(!aValue)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  mPropertyHash.Put(aName, aValue);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::DeleteProperty(const nsAString& aName)
+{
+  // is it too much to ask for ns*Hashtable to return
+  // a boolean indicating whether RemoveEntry succeeded
+  // or not?!?!
+  bool isFound = mPropertyHash.Get(aName, nullptr);
+  if (!isFound) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // then from the hash
+  mPropertyHash.Remove(aName);
+
+  return NS_OK;
+}
+
+
+//
+// nsSimpleProperty class and impl; used for GetEnumerator
+//
+
+class nsSimpleProperty final : public nsIProperty
+{
+  ~nsSimpleProperty() {}
+
+public:
+  nsSimpleProperty(const nsAString& aName, nsIVariant* aValue)
+    : mName(aName)
+    , mValue(aValue)
+  {
+  }
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIPROPERTY
+protected:
+  nsString mName;
+  nsCOMPtr<nsIVariant> mValue;
+};
+
+NS_IMPL_ISUPPORTS(nsSimpleProperty, nsIProperty)
+
+NS_IMETHODIMP
+nsSimpleProperty::GetName(nsAString& aName)
+{
+  aName.Assign(mName);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsSimpleProperty::GetValue(nsIVariant** aValue)
+{
+  NS_IF_ADDREF(*aValue = mValue);
+  return NS_OK;
+}
+
+// end nsSimpleProperty
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetEnumerator(nsISimpleEnumerator** aResult)
+{
+  nsCOMPtr<nsIMutableArray> propertyArray = nsArray::Create();
+  if (!propertyArray) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  for (auto iter = mPropertyHash.Iter(); !iter.Done(); iter.Next()) {
+    const nsAString& key = iter.Key();
+    nsIVariant* data = iter.UserData();
+    nsSimpleProperty* sprop = new nsSimpleProperty(key, data);
+    propertyArray->AppendElement(sprop, false);
+  }
+
+  return NS_NewArrayEnumerator(aResult, propertyArray);
+}
+
+#define IMPL_GETSETPROPERTY_AS(Name, Type) \
+NS_IMETHODIMP \
+nsHashPropertyBagBase::GetPropertyAs ## Name (const nsAString & prop, Type *_retval) \
+{ \
+    nsIVariant* v = mPropertyHash.GetWeak(prop); \
+    if (!v) \
+        return NS_ERROR_NOT_AVAILABLE; \
+    return v->GetAs ## Name(_retval); \
+} \
+\
+NS_IMETHODIMP \
+nsHashPropertyBagBase::SetPropertyAs ## Name (const nsAString & prop, Type value) \
+{ \
+    nsCOMPtr<nsIWritableVariant> var = new nsVariant(); \
+    var->SetAs ## Name(value); \
+    return SetProperty(prop, var); \
+}
+
+IMPL_GETSETPROPERTY_AS(Int32, int32_t)
+IMPL_GETSETPROPERTY_AS(Uint32, uint32_t)
+IMPL_GETSETPROPERTY_AS(Int64, int64_t)
+IMPL_GETSETPROPERTY_AS(Uint64, uint64_t)
+IMPL_GETSETPROPERTY_AS(Double, double)
+IMPL_GETSETPROPERTY_AS(Bool, bool)
+
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetPropertyAsAString(const nsAString& aProp,
+                                            nsAString& aResult)
+{
+  nsIVariant* v = mPropertyHash.GetWeak(aProp);
+  if (!v) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return v->GetAsAString(aResult);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetPropertyAsACString(const nsAString& aProp,
+                                             nsACString& aResult)
+{
+  nsIVariant* v = mPropertyHash.GetWeak(aProp);
+  if (!v) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return v->GetAsACString(aResult);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetPropertyAsAUTF8String(const nsAString& aProp,
+                                                nsACString& aResult)
+{
+  nsIVariant* v = mPropertyHash.GetWeak(aProp);
+  if (!v) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return v->GetAsAUTF8String(aResult);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::GetPropertyAsInterface(const nsAString& aProp,
+                                              const nsIID& aIID,
+                                              void** aResult)
+{
+  nsIVariant* v = mPropertyHash.GetWeak(aProp);
+  if (!v) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  nsCOMPtr<nsISupports> val;
+  nsresult rv = v->GetAsISupports(getter_AddRefs(val));
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  if (!val) {
+    // We have a value, but it's null
+    *aResult = nullptr;
+    return NS_OK;
+  }
+  return val->QueryInterface(aIID, aResult);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::SetPropertyAsAString(const nsAString& aProp,
+                                            const nsAString& aValue)
+{
+  nsCOMPtr<nsIWritableVariant> var = new nsVariant();
+  var->SetAsAString(aValue);
+  return SetProperty(aProp, var);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::SetPropertyAsACString(const nsAString& aProp,
+                                             const nsACString& aValue)
+{
+  nsCOMPtr<nsIWritableVariant> var = new nsVariant();
+  var->SetAsACString(aValue);
+  return SetProperty(aProp, var);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::SetPropertyAsAUTF8String(const nsAString& aProp,
+                                                const nsACString& aValue)
+{
+  nsCOMPtr<nsIWritableVariant> var = new nsVariant();
+  var->SetAsAUTF8String(aValue);
+  return SetProperty(aProp, var);
+}
+
+NS_IMETHODIMP
+nsHashPropertyBagBase::SetPropertyAsInterface(const nsAString& aProp,
+                                              nsISupports* aValue)
+{
+  nsCOMPtr<nsIWritableVariant> var = new nsVariant();
+  var->SetAsISupports(aValue);
+  return SetProperty(aProp, var);
+}
+
+
+/*
+ * nsHashPropertyBag implementation.
+ */
+
+NS_IMPL_ADDREF(nsHashPropertyBag)
+NS_IMPL_RELEASE(nsHashPropertyBag)
+
+NS_INTERFACE_MAP_BEGIN(nsHashPropertyBag)
+  NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIPropertyBag, nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY(nsIPropertyBag2)
+  NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag2)
+NS_INTERFACE_MAP_END
+
+
+/*
+ * nsHashPropertyBagCC implementation.
+ */
+
+NS_IMPL_CYCLE_COLLECTION(nsHashPropertyBagCC, mPropertyHash)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsHashPropertyBagCC)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsHashPropertyBagCC)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsHashPropertyBagCC)
+  NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIPropertyBag, nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWritablePropertyBag)
+  NS_INTERFACE_MAP_ENTRY(nsIPropertyBag2)
+  NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag2)
+NS_INTERFACE_MAP_END