Renamed various types to fit lower_case_with_underscores convention.

[videolink.git] / link_iterator.cpp

diff --git a/link_iterator.cpp b/link_iterator.cpp
new file mode 100644 (file)
index 0000000..20d4b4c
--- /dev/null
+++ b/link_iterator.cpp
@@ -0,0 +1,52 @@
+// Copyright 2005 Ben Hutchings <ben@decadentplace.org.uk>.
+// See the file "COPYING" for licence details.
+
+#include "link_iterator.hpp"
+
+#include <cassert>
+
+#include <nsIDOMHTMLCollection.h>
+#include <nsIDOMHTMLDocument.h>
+
+link_iterator::link_iterator()
+{}
+
+link_iterator::link_iterator(nsIDOMDocument * document)
+{
+    nsCOMPtr<nsIDOMHTMLDocument> htmlDoc(do_QueryInterface(document));
+    if (!htmlDoc)
+       return;
+
+    htmlDoc->GetLinks(getter_AddRefs(collection_));
+    assert(collection_);
+
+    index_ = 0;
+    length_ = 0;
+    collection_->GetLength(&length_);
+    if (length_ == 0)
+       collection_ = 0;
+}
+
+already_AddRefed<nsIDOMNode> link_iterator::operator*() const
+{
+    assert(collection_);
+    nsIDOMNode * result = 0;
+    collection_->Item(index_, &result);
+    assert(result);
+    return dont_AddRef(result);
+}
+
+link_iterator & link_iterator::operator++()
+{
+    assert(collection_);
+    ++index_;
+    if (index_ == length_)
+       collection_ = 0;
+    return *this;
+}
+
+bool link_iterator::operator==(const link_iterator & other) const
+{
+    return (collection_ == other.collection_
+           && (!collection_ || index_ == other.index_));
+}