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// 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 <string>
#include "base/logging.h"
#include "base/stringprintf.h"
#include "chrome/browser/automation/automation_event_observers.h"
#include "chrome/browser/automation/automation_event_queue.h"
#include "chrome/browser/automation/automation_provider.h"
#include "chrome/browser/automation/automation_provider_json.h"
#include "content/public/browser/dom_operation_notification_details.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
const char* DomEventObserver::kSubstringReplaceWithObserverId = "$(id)";
AutomationEventObserver::AutomationEventObserver(
AutomationEventQueue* event_queue, bool recurring)
: event_queue_(event_queue),
recurring_(recurring),
observer_id_(-1),
event_count_(0) {
DCHECK(event_queue_ != NULL);
}
AutomationEventObserver::~AutomationEventObserver() {}
void AutomationEventObserver::NotifyEvent(DictionaryValue* value) {
if (event_queue_) {
if (!value)
value = new DictionaryValue;
value->SetInteger("observer_id", GetId());
event_queue_->NotifyEvent(
new AutomationEventQueue::AutomationEvent(
GetId(), value));
event_count_++;
} else if (value) {
delete value;
}
}
void AutomationEventObserver::Init(int observer_id) {
observer_id_ = observer_id;
}
int AutomationEventObserver::GetId() const {
return observer_id_;
}
void AutomationEventObserver::RemoveIfDone() {
if (!recurring_ && event_count_ > 0 && event_queue_) {
event_queue_->RemoveObserver(GetId());
}
}
DomEventObserver::DomEventObserver(
AutomationEventQueue* event_queue,
const std::string& event_name,
int automation_id,
bool recurring)
: AutomationEventObserver(event_queue, recurring),
event_name_(event_name),
event_name_base_(event_name),
automation_id_(automation_id) {
registrar_.Add(this, content::NOTIFICATION_DOM_OPERATION_RESPONSE,
content::NotificationService::AllSources());
}
DomEventObserver::~DomEventObserver() {}
void DomEventObserver::Init(int observer_id) {
AutomationEventObserver::Init(observer_id);
std::string id_string = base::StringPrintf("%d", observer_id);
event_name_ = event_name_base_;
int replace_pos =
event_name_.find(kSubstringReplaceWithObserverId);
if (replace_pos != (int)std::string::npos) {
event_name_.replace(replace_pos,
::strlen(kSubstringReplaceWithObserverId),
id_string);
}
}
void DomEventObserver::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
if (type == content::NOTIFICATION_DOM_OPERATION_RESPONSE) {
content::Details<content::DomOperationNotificationDetails> dom_op_details(
details);
if ((dom_op_details->automation_id == automation_id_ ||
automation_id_ == -1) &&
(event_name_.length() == 0 ||
event_name_.compare(dom_op_details->json) == 0)) {
DictionaryValue* dict = new DictionaryValue;
dict->SetString("type", "raised_event");
dict->SetString("name", dom_op_details->json);
NotifyEvent(dict);
}
}
// Nothing should happen after RemoveIfDone() as it may delete the object.
RemoveIfDone();
}
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