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-rw-r--r--dom/url/URLSearchParams.cpp42
-rw-r--r--dom/url/URLSearchParams.h6
2 files changed, 47 insertions, 1 deletions
diff --git a/dom/url/URLSearchParams.cpp b/dom/url/URLSearchParams.cpp
index f762299f8..e2172ea0e 100644
--- a/dom/url/URLSearchParams.cpp
+++ b/dom/url/URLSearchParams.cpp
@@ -448,6 +448,15 @@ URLSearchParams::GetValueAtIndex(uint32_t aIndex) const
return mParams->GetValueAtIndex(aIndex);
}
+void
+URLSearchParams::Sort(ErrorResult& aRv)
+{
+ aRv = mParams->Sort();
+ if (!aRv.Failed()) {
+ NotifyObserver();
+ }
+}
+
// Helper functions for structured cloning
inline bool
ReadString(JSStructuredCloneReader* aReader, nsString& aString)
@@ -472,6 +481,39 @@ ReadString(JSStructuredCloneReader* aReader, nsString& aString)
return true;
}
+nsresult
+URLParams::Sort()
+{
+ // Unfortunately we cannot use nsTArray<>.Sort() because it doesn't keep the
+ // correct order of the values for equal keys.
+
+ // Let's sort the keys, without duplicates.
+ FallibleTArray<nsString> keys;
+ for (const Param& param : mParams) {
+ if (!keys.Contains(param.mKey) &&
+ !keys.InsertElementSorted(param.mKey, fallible)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ }
+
+ FallibleTArray<Param> params;
+
+ // Here we recreate the array starting from the sorted keys.
+ for (uint32_t keyId = 0, keysLength = keys.Length(); keyId < keysLength;
+ ++keyId) {
+ const nsString& key = keys[keyId];
+ for (const Param& param : mParams) {
+ if (param.mKey.Equals(key) &&
+ !params.AppendElement(param, fallible)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ }
+ }
+
+ mParams.SwapElements(params);
+ return NS_OK;
+}
+
inline bool
WriteString(JSStructuredCloneWriter* aWriter, const nsString& aString)
{
diff --git a/dom/url/URLSearchParams.h b/dom/url/URLSearchParams.h
index 9fefd78dd..e02c1179f 100644
--- a/dom/url/URLSearchParams.h
+++ b/dom/url/URLSearchParams.h
@@ -70,7 +70,7 @@ public:
void Get(const nsAString& aName, nsString& aRetval);
- void GetAll(const nsAString& aName, nsTArray<nsString >& aRetval);
+ void GetAll(const nsAString& aName, nsTArray<nsString>& aRetval);
void Set(const nsAString& aName, const nsAString& aValue);
@@ -103,6 +103,8 @@ public:
return mParams[aIndex].mValue;
}
+ nsresult Sort();
+
bool
ReadStructuredClone(JSStructuredCloneReader* aReader);
@@ -171,6 +173,8 @@ public:
const nsAString& GetKeyAtIndex(uint32_t aIndex) const;
const nsAString& GetValueAtIndex(uint32_t aIndex) const;
+ void Sort(ErrorResult& aRv);
+
void Stringify(nsString& aRetval) const
{
Serialize(aRetval);