1 files changed, 66 insertions, 0 deletions
diff --git a/chrome/common/geoposition.cc b/chrome/common/geoposition.cc
new file mode 100644
index 0000000..f8f087c
--- /dev/null
+++ b/chrome/common/geoposition.cc
@@ -0,0 +1,66 @@
+// Copyright (c) 2010 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/common/geoposition.h"
+
+namespace {
+// Sentinel values to mark invalid data. (WebKit carries companion is_valid
+// bools for this purpose; we may eventually follow that approach, but
+// sentinels worked OK in the gears code this is based on.)
+const double kBadLatitudeLongitude = 200;
+// Lowest point on land is at approximately -400 meters.
+const int kBadAltitude = -10000;
+const int kBadAccuracy = -1;  // Accuracy must be non-negative.
+const int64 kBadTimestamp = kint64min;
+const int kBadHeading = -1;  // Heading must be non-negative.
+const int kBadSpeed = -1;
+}
+
+Geoposition::Geoposition()
+    : latitude(kBadLatitudeLongitude),
+      longitude(kBadLatitudeLongitude),
+      altitude(kBadAltitude),
+      accuracy(kBadAccuracy),
+      altitude_accuracy(kBadAccuracy),
+      heading(kBadHeading),
+      speed(kBadSpeed),
+      error_code(ERROR_CODE_NONE) {
+}
+
+bool Geoposition::is_valid_latlong() const {
+  return latitude >= -90.0 && latitude <= 90.0 &&
+         longitude >= -180.0 && longitude <= 180.0;
+}
+
+bool Geoposition::is_valid_altitude() const {
+  return altitude > kBadAltitude;
+}
+
+bool Geoposition::is_valid_accuracy() const {
+  return accuracy >= 0.0;
+}
+
+bool Geoposition::is_valid_altitude_accuracy() const {
+  return altitude_accuracy >= 0.0;
+}
+
+bool Geoposition::is_valid_heading() const {
+  return heading >= 0 && heading <= 360;
+}
+
+bool Geoposition::is_valid_speed() const {
+  return speed >= 0;
+}
+
+bool Geoposition::is_valid_timestamp() const {
+  return !timestamp.is_null();
+}
+
+bool Geoposition::IsValidFix() const {
+  return is_valid_latlong() && is_valid_accuracy() && is_valid_timestamp();
+}
+
+bool Geoposition::IsInitialized() const {
+  return error_code != ERROR_CODE_NONE || IsValidFix();
+}