Add autocomplete provider for "about:" URLs. Original patch by simonmorris@chromium.org (see http://codereview.chromium.org/6246016/ ), r=me.

BUG=6870
TEST=Typing "about:s" into the omnibox should result in a couple of "about:s..." URL entries in the dropdown even if you've never visited them.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@74451 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 59 insertions, 0 deletions

diff --git a/chrome/browser/autocomplete/builtin_provider.cc b/chrome/browser/autocomplete/builtin_provider.cc
new file mode 100644
index 0000000..bd2770e
--- /dev/null
+++ b/chrome/browser/autocomplete/builtin_provider.cc
@@ -0,0 +1,59 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/autocomplete/builtin_provider.h"
+
+#include "base/string_piece.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/autocomplete/autocomplete_match.h"
+#include "chrome/browser/browser_about_handler.h"
+#include "chrome/common/url_constants.h"
+
+const int BuiltinProvider::kRelevance = 575;
+
+BuiltinProvider::Builtin::Builtin(const string16& path, const GURL& url)
+    : path(path), url(url) {
+};
+
+BuiltinProvider::BuiltinProvider(ACProviderListener* listener,
+                                 Profile* profile)
+    : AutocompleteProvider(listener, profile, "Builtin") {
+  std::string about("about:");
+  std::vector<std::string> paths = AboutPaths();
+  for (std::vector<std::string>::const_iterator path = paths.begin();
+      path != paths.end(); ++path) {
+    builtins_.push_back(Builtin(UTF8ToUTF16(about + *path),
+                                AboutPathToURL(*path)));
+  }
+}
+
+void BuiltinProvider::Start(const AutocompleteInput& input,
+                            bool minimal_changes) {
+  matches_.clear();
+  if ((input.type() == AutocompleteInput::INVALID) ||
+      (input.type() == AutocompleteInput::FORCED_QUERY) ||
+      (input.type() == AutocompleteInput::QUERY))
+    return;
+  for (std::vector<Builtin>::const_iterator builtin = builtins_.begin();
+      (builtin != builtins_.end()) && (matches_.size() < kMaxMatches);
+      ++builtin) {
+    if (!builtin->path.compare(0, input.text().length(), input.text())) {
+      AutocompleteMatch match(this, kRelevance, false,
+                              AutocompleteMatch::NAVSUGGEST);
+      match.fill_into_edit = builtin->path;
+      match.destination_url = builtin->url;
+      match.contents = builtin->path;
+      match.contents_class.push_back(ACMatchClassification(0,
+          ACMatchClassification::MATCH | ACMatchClassification::URL));
+      if (match.contents.length() > input.text().length()) {
+        match.contents_class.push_back(
+            ACMatchClassification(input.text().length(),
+                                  ACMatchClassification::URL));
+      }
+      matches_.push_back(match);
+    }
+  }
+  for (size_t i = 0; i < matches_.size(); i++)
+    matches_[i].relevance = kRelevance + matches_.size() - (i + 1);
+}