Extends DBusThreadManager to connect ibus-bus.

chromeos/dbus/ibus/ibus_util.cc

+// Copyright (c) 2012 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 "chromeos/dbus/ibus/ibus_util.h"
+
+#include "base/environment.h"
+#include "base/file_util.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/string_util.h"
+
+#include <string>
+#include <vector>
+
+namespace chromeos {
+
+namespace {
+const char kIBusAddressFileEnvKey[] = "IBUS_ADDRESS_FILE";
+const char kIBusAddressKey[] = "IBUS_ADDRESS";
+}  // namespace
+
+bool IBusUtil::GetIBusAddress(std::string* address) {
+  DCHECK(address);
+  scoped_ptr<base::Environment> env(base::Environment::Create());
+  std::string address_file_path;
+  if (!env->GetVar(kIBusAddressFileEnvKey, &address_file_path)) {
+    LOG(ERROR) << "Can not find " << kIBusAddressFileEnvKey
+               << " in environment variables.";
+    return false;
+  }
+
+  std::string address_file_contents;
+  if (!file_util::ReadFileToString(FilePath(address_file_path),

[satorux1, 2012/04/20 23:18:40]

Ugh, you cannot do this here. DBusThreadManager is created on UI thread, where
you cannot perform file IO...

[Seigo Nonaka, 2012/04/21 05:35:14]

I found a command line flag to specify opening address in ibus-daemon.
https://github.com/ibus/ibus/blob/master/bus/main.c#L64
And Chrome launches the ibus-daemon.
http://code.google.com/searchframe#OAMlx_jo-ck/src/chrome/browser/chromeos/in...

Thus we may be able to fix the address name.
I will try them.

On 2012/04/20 23:18:40, satorux1 wrote:

[Seigo Nonaka, 2012/04/23 23:03:21]

I made another CL for above.
http://codereview.chromium.org/10195001/

This CL will be submit after the CL is approved.

On 2012/04/21 05:35:14, nona1 wrote:

+                                   &address_file_contents)) {
+    LOG(ERROR) << "Can not read IBus address file:" << address_file_path;
+    return false;
+  }
+
+  std::vector<std::string> lines;
+  Tokenize(address_file_contents, "\r\n", &lines);

[satorux1, 2012/04/20 23:18:40]

Use SplitString instead? \r won't be used in the file, right?

[Seigo Nonaka, 2012/04/23 23:03:21]

Yes, but I removed this file.
Thanks
On 2012/04/20 23:18:40, satorux1 wrote:

+
+  // Prfix matching is enought for ibus address file parsing, because address
+  // file is generated by ibus with fixed format.
+  // https://github.com/ibus/ibus/blob/master/src/ibusshare.c#L234
+  const std::string address_entry_prefix = std::string(kIBusAddressKey)
+      + std::string("=");
+  for (std::vector<std::string>::const_iterator ite = lines.begin();
+       ite != lines.end(); ++ite) {

[satorux1, 2012/04/20 23:18:40]

matter of taste, but for (size_t i = 0; i < lines.zie(); ++i) is more succinct,
unless you are an iterator enthusiast. 

[Seigo Nonaka, 2012/04/23 23:03:21]

I have not strong policy about iterator:)
I will do in next time.

Thanks.
On 2012/04/20 23:18:40, satorux1 wrote:

+
+    if (!StartsWithASCII(*ite, address_entry_prefix, true)) {
+      continue;
+    }
+
+    address->assign(ite->substr(address_entry_prefix.size()));
+    return true;
+  }
+  LOG(ERROR) << "Can not find " << kIBusAddressKey << " entry.";
+  return false;
+}
+
+}  // namespace chromeos