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// 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/test/automation/javascript_execution_controller.h"
#include "base/json/string_escape.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/common/json_value_serializer.h"
using base::GetDoubleQuotedJson;
// JavaScriptObjectProxy methods
JavaScriptObjectProxy::JavaScriptObjectProxy(
JavaScriptExecutionController* executor, int handle)
: executor_(executor->AsWeakPtr()), handle_(handle) {}
JavaScriptObjectProxy::~JavaScriptObjectProxy() {
if (is_valid())
executor_->Remove(handle_);
}
std::string JavaScriptObjectProxy::GetReferenceJavaScript() {
return JavaScriptExecutionController::GetReferenceJavaScript(this);
}
// JavaScriptExecutionController methods
bool JavaScriptExecutionController::ExecuteJavaScript(
const std::string& script) {
std::string json;
return ExecuteJavaScript(script, &json);
}
// static
std::string JavaScriptExecutionController::GetReferenceJavaScript(
JavaScriptObjectProxy* object) {
return StringPrintf("domAutomation.getObject(%d)", object->handle());
}
// static
std::string JavaScriptExecutionController::Serialize(
const std::vector<std::string>& vector) {
std::string javascript = "[";
for (size_t i = 0; i < vector.size(); i++) {
javascript.append(GetDoubleQuotedJson(UTF8ToUTF16(vector[i])));
if (i < vector.size() - 1)
javascript.append(",");
}
javascript.append("]");
return javascript;
}
void JavaScriptExecutionController::Remove(int handle) {
ExecuteJavaScript(StringPrintf("domAutomation.removeObject(%d);", handle));
handle_to_object_.erase(handle);
if (handle_to_object_.empty())
LastObjectRemoved();
}
bool JavaScriptExecutionController::ExecuteJavaScript(
const std::string& original_script, std::string* json) {
std::string script =
"domAutomationController.setAutomationId(0);"
"domAutomation.evaluateJavaScript(";
script.append(GetDoubleQuotedJson(UTF8ToUTF16(original_script)));
script.append(");");
return ExecuteJavaScriptAndGetJSON(script, json);
}
bool JavaScriptExecutionController::ParseJSON(const std::string& json,
scoped_ptr<Value>* result) {
JSONStringValueSerializer parse(json);
std::string parsing_error;
scoped_ptr<Value> root_value(parse.Deserialize(&parsing_error));
if (!root_value.get()) {
if (parsing_error.length())
LOG(ERROR) << "Cannot parse JSON response: " << parsing_error;
else
LOG(ERROR) << "JSON response is empty";
return false;
}
// The response must be a list of 3 components:
// -success(boolean): whether the javascript was evaluated with no errors
// -error(string): the evaluation error message or the empty string if
// no error occurred
// -result(string): the result of the evaluation (in JSON), or the
// exact error if an error occurred (in JSON)
bool success;
std::string evaluation_error;
Value* evaluation_result_value;
if (!root_value->IsType(Value::TYPE_LIST)) {
LOG(ERROR) << "JSON response was not in correct format";
return false;
}
ListValue* list = static_cast<ListValue*>(root_value.get());
if (!list->GetBoolean(0, &success) ||
!list->GetString(1, &evaluation_error) ||
!list->Remove(2, &evaluation_result_value)) {
LOG(ERROR) << "JSON response was not in correct format";
return false;
}
if (!success) {
LOG(WARNING) << "JavaScript evaluation did not complete successfully."
<< evaluation_error;
return false;
}
result->reset(evaluation_result_value);
return true;
}
bool JavaScriptExecutionController::ConvertResponse(Value* value,
bool* result) {
return value->GetAsBoolean(result);
}
bool JavaScriptExecutionController::ConvertResponse(Value* value,
int* result) {
return value->GetAsInteger(result);
}
bool JavaScriptExecutionController::ConvertResponse(Value* value,
std::string* result) {
return value->GetAsString(result);
}
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