[chromedriver] Remove unnecessary round trips to Chrome.

chrome/test/chromedriver/alert_commands.cc

+// Copyright (c) 2013 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/test/chromedriver/alert_commands.h"
+
+#include "base/values.h"
+#include "chrome/test/chromedriver/chrome/chrome.h"
+#include "chrome/test/chromedriver/chrome/devtools_client.h"
+#include "chrome/test/chromedriver/chrome/javascript_dialog_manager.h"
+#include "chrome/test/chromedriver/chrome/status.h"
+#include "chrome/test/chromedriver/chrome/web_view.h"
+#include "chrome/test/chromedriver/session.h"
+
+Status ExecuteAlertCommand(
+     const AlertCommand& alert_command,
+     Session* session,
+     const base::DictionaryValue& params,
+     scoped_ptr<base::Value>* value) {
+  WebView* web_view = NULL;
+  Status status = session->GetTargetWindow(&web_view);
+  if (status.IsError())
+    return status;
+
+  status = web_view->ConnectIfNecessary();
+  if (status.IsError())
+    return status;
+
+  status = web_view->GetDevToolsClient()->HandleReceivedEvents();
+  if (status.IsError())
+    return status;
+
+  status = web_view->WaitForPendingNavigations(session->GetCurrentFrameId());
+  if (status.IsError() && status.code() != kUnexpectedAlertOpen)
+    return status;
+
+  return alert_command.Run(session, web_view, params, value);
+}
+
+Status ExecuteGetAlert(
+    Session* session,
+    WebView* web_view,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  value->reset(base::Value::CreateBooleanValue(
+      web_view->GetJavaScriptDialogManager()->IsDialogOpen()));
+  return Status(kOk);
+}
+
+Status ExecuteGetAlertText(
+    Session* session,
+    WebView* web_view,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  std::string message;
+  Status status =
+      web_view->GetJavaScriptDialogManager()->GetDialogMessage(&message);
+  if (status.IsError())
+    return status;
+  value->reset(base::Value::CreateStringValue(message));
+  return Status(kOk);
+}
+
+Status ExecuteSetAlertValue(
+    Session* session,
+    WebView* web_view,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  std::string text;
+  if (!params.GetString("text", &text))
+    return Status(kUnknownError, "missing or invalid 'text'");
+
+  if (!web_view->GetJavaScriptDialogManager()->IsDialogOpen())
+    return Status(kNoAlertOpen);
+
+  session->prompt_text.reset(new std::string(text));
+  return Status(kOk);
+}
+
+Status ExecuteAcceptAlert(
+    Session* session,
+    WebView* web_view,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  Status status = web_view->GetJavaScriptDialogManager()
+      ->HandleDialog(true, session->prompt_text.get());
+  session->prompt_text.reset();
+  return status;
+}
+
+Status ExecuteDismissAlert(
+    Session* session,
+    WebView* web_view,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  Status status = web_view->GetJavaScriptDialogManager()
+      ->HandleDialog(false, session->prompt_text.get());
+  session->prompt_text.reset();
+  return status;
+}