Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 139 insertions, 0 deletions

diff --git a/chrome/browser/page_state.cc b/chrome/browser/page_state.cc
new file mode 100644
index 0000000..2f996b4
--- /dev/null
+++ b/chrome/browser/page_state.cc
@@ -0,0 +1,139 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "chrome/browser/page_state.h"
+#include "chrome/common/json_value_serializer.h"
+#include "googleurl/src/gurl.h"
+#include "net/base/escape.h"
+
+void PageState::InitWithURL(const GURL& url) {
+  // Reset our state
+  state_.reset(new DictionaryValue);
+
+  std::string query_string = url.query();
+  if (query_string.empty())
+    return;
+
+  url_parse::Component queryComp, keyComp, valueComp;
+  queryComp.len = static_cast<int>(query_string.size());
+  while (url_parse::ExtractQueryKeyValue(query_string.c_str(), &queryComp,
+                                         &keyComp, &valueComp)) {
+    if (keyComp.is_nonempty()) {
+      std::string escaped = query_string.substr(valueComp.begin,
+                                                valueComp.len);
+      // We know that the query string is UTF-8 since it's an internal URL.
+      std::wstring value = UTF8ToWide(
+          UnescapeURLComponent(escaped, UnescapeRule::REPLACE_PLUS_WITH_SPACE));
+      state_->Set(UTF8ToWide(query_string.substr(keyComp.begin, keyComp.len)),
+                  new StringValue(value));
+    }
+  }
+}
+
+void PageState::InitWithBytes(const std::string& bytes) {
+  // Reset our state. We create a new empty one just in case
+  // deserialization fails
+  state_.reset(new DictionaryValue);
+
+  JSONStringValueSerializer serializer(bytes);
+  Value* root = NULL;
+
+  if (!serializer.Deserialize(&root))
+    NOTREACHED();
+
+  if (root != NULL && root->GetType() == Value::TYPE_DICTIONARY) {
+    state_.reset(static_cast<DictionaryValue*>(root));
+  } else if (root) {
+    delete root;
+  }
+}
+
+void PageState::GetByteRepresentation(std::string* out) const {
+  JSONStringValueSerializer serializer(out);
+  if (!serializer.Serialize(*state_))
+    NOTREACHED();
+}
+
+void PageState::SetProperty(const std::wstring& key,
+                                   const std::wstring& value) {
+  state_->Set(key, new StringValue(value));
+}
+
+bool PageState::GetProperty(const std::wstring& key, std::wstring* value) const {
+  if (state_->HasKey(key)) {
+    Value* v;
+    state_->Get(key, &v);
+    if (v->GetType() == Value::TYPE_STRING) {
+      StringValue* sv = reinterpret_cast<StringValue*>(v);
+      sv->GetAsString(value);
+      return true;
+    }
+  }
+  return false;
+}
+
+void PageState::SetInt64Property(const std::wstring& key, int64 value) {
+  wchar_t buff[64];
+  _i64tow_s(value, buff, arraysize(buff), 10);
+  SetProperty(key, buff);
+}
+
+bool PageState::GetInt64Property(const std::wstring& key, int64* value) const {
+  std::wstring v;
+  if (GetProperty(key, &v)) {
+    *value = _wtoi64(v.c_str());
+    return true;
+  }
+  return false;
+}
+
+void PageState::SetIntProperty(const std::wstring& key, int value) {
+  wchar_t buff[64];
+  _itow_s(value, buff, arraysize(buff), 10);
+  SetProperty(key, buff);
+}
+
+bool PageState::GetIntProperty(const std::wstring& key, int* value) const {
+  std::wstring v;
+  if (GetProperty(key, &v)) {
+    *value = _wtoi(v.c_str());
+    return true;
+  }
+  return false;
+}
+
+PageState* PageState::Copy() const {
+  PageState* copy = new PageState();
+  if (state_.get())
+    copy->state_.reset(static_cast<DictionaryValue*>(state_->DeepCopy()));
+  return copy;
+}