1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xul/templates/src/nsResourceSet.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,108 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsResourceSet.h"
1.10 +
1.11 +nsResourceSet::nsResourceSet(const nsResourceSet& aResourceSet)
1.12 + : mResources(nullptr),
1.13 + mCount(0),
1.14 + mCapacity(0)
1.15 +{
1.16 + ConstIterator last = aResourceSet.Last();
1.17 + for (ConstIterator resource = aResourceSet.First(); resource != last; ++resource)
1.18 + Add(*resource);
1.19 +}
1.20 +
1.21 +
1.22 +nsResourceSet&
1.23 +nsResourceSet::operator=(const nsResourceSet& aResourceSet)
1.24 +{
1.25 + Clear();
1.26 + ConstIterator last = aResourceSet.Last();
1.27 + for (ConstIterator resource = aResourceSet.First(); resource != last; ++resource)
1.28 + Add(*resource);
1.29 + return *this;
1.30 +}
1.31 +
1.32 +nsResourceSet::~nsResourceSet()
1.33 +{
1.34 + MOZ_COUNT_DTOR(nsResourceSet);
1.35 + Clear();
1.36 + delete[] mResources;
1.37 +}
1.38 +
1.39 +nsresult
1.40 +nsResourceSet::Clear()
1.41 +{
1.42 + while (--mCount >= 0) {
1.43 + NS_RELEASE(mResources[mCount]);
1.44 + }
1.45 + mCount = 0;
1.46 + return NS_OK;
1.47 +}
1.48 +
1.49 +nsresult
1.50 +nsResourceSet::Add(nsIRDFResource* aResource)
1.51 +{
1.52 + NS_PRECONDITION(aResource != nullptr, "null ptr");
1.53 + if (! aResource)
1.54 + return NS_ERROR_NULL_POINTER;
1.55 +
1.56 + if (Contains(aResource))
1.57 + return NS_OK;
1.58 +
1.59 + if (mCount >= mCapacity) {
1.60 + int32_t capacity = mCapacity + 4;
1.61 + nsIRDFResource** resources = new nsIRDFResource*[capacity];
1.62 + if (! resources)
1.63 + return NS_ERROR_OUT_OF_MEMORY;
1.64 +
1.65 + for (int32_t i = mCount - 1; i >= 0; --i)
1.66 + resources[i] = mResources[i];
1.67 +
1.68 + delete[] mResources;
1.69 +
1.70 + mResources = resources;
1.71 + mCapacity = capacity;
1.72 + }
1.73 +
1.74 + mResources[mCount++] = aResource;
1.75 + NS_ADDREF(aResource);
1.76 + return NS_OK;
1.77 +}
1.78 +
1.79 +void
1.80 +nsResourceSet::Remove(nsIRDFResource* aProperty)
1.81 +{
1.82 + bool found = false;
1.83 +
1.84 + nsIRDFResource** res = mResources;
1.85 + nsIRDFResource** limit = mResources + mCount;
1.86 + while (res < limit) {
1.87 + if (found) {
1.88 + *(res - 1) = *res;
1.89 + }
1.90 + else if (*res == aProperty) {
1.91 + NS_RELEASE(*res);
1.92 + found = true;
1.93 + }
1.94 + ++res;
1.95 + }
1.96 +
1.97 + if (found)
1.98 + --mCount;
1.99 +}
1.100 +
1.101 +bool
1.102 +nsResourceSet::Contains(nsIRDFResource* aResource) const
1.103 +{
1.104 + for (int32_t i = mCount - 1; i >= 0; --i) {
1.105 + if (mResources[i] == aResource)
1.106 + return true;
1.107 + }
1.108 +
1.109 + return false;
1.110 +}
1.111 +
