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// Copyright (c) 2009 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/browser/extensions/extension_browser_event_router.h"
#include "base/json_writer.h"
#include "base/values.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/extensions/extension.h"
#include "chrome/browser/extensions/extension_message_service.h"
#include "chrome/browser/extensions/extension_tabs_module.h"
#include "chrome/common/notification_service.h"
const char* kOnPageActionExecuted = "page-action-executed";
const char* kOnTabCreated = "tab-created";
const char* kOnTabMoved = "tab-moved";
const char* kOnTabSelectionChanged = "tab-selection-changed";
const char* kOnTabAttached = "tab-attached";
const char* kOnTabDetached = "tab-detached";
const char* kOnTabRemoved = "tab-removed";
const char* kOnWindowCreated = "window-created";
const char* kOnWindowRemoved = "window-removed";
const char* kOnWindowFocusedChanged = "window-focus-changed";
ExtensionBrowserEventRouter* ExtensionBrowserEventRouter::GetInstance() {
return Singleton<ExtensionBrowserEventRouter>::get();
}
static void DispatchEvent(Profile *profile,
const char* event_name,
const std::string json_args) {
ExtensionMessageService::GetInstance(profile->GetRequestContext())->
DispatchEventToRenderers(event_name, json_args);
}
static void DispatchSimpleBrowserEvent(Profile *profile, const int window_id,
const char* event_name) {
ListValue args;
args.Append(Value::CreateIntegerValue(window_id));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(profile, event_name, json_args);
}
void ExtensionBrowserEventRouter::Init() {
if (initialized_)
return;
BrowserList::AddObserver(this);
initialized_ = true;
}
ExtensionBrowserEventRouter::ExtensionBrowserEventRouter()
: initialized_(false) { }
void ExtensionBrowserEventRouter::OnBrowserAdded(const Browser* browser) {
// Start listening to TabStripModel events for this browser.
browser->tabstrip_model()->AddObserver(this);
DispatchSimpleBrowserEvent(browser->profile(),
ExtensionTabUtil::GetWindowId(browser),
kOnWindowCreated);
}
void ExtensionBrowserEventRouter::OnBrowserRemoving(const Browser* browser) {
// Stop listening to TabStripModel events for this browser.
browser->tabstrip_model()->RemoveObserver(this);
DispatchSimpleBrowserEvent(browser->profile(),
ExtensionTabUtil::GetWindowId(browser),
kOnWindowRemoved);
}
void ExtensionBrowserEventRouter::OnBrowserSetLastActive(
const Browser* browser) {
DispatchSimpleBrowserEvent(browser->profile(),
ExtensionTabUtil::GetWindowId(browser),
kOnWindowFocusedChanged);
}
void ExtensionBrowserEventRouter::TabCreatedAt(TabContents* contents,
int index,
bool foreground) {
ListValue args;
args.Append(ExtensionTabUtil::CreateTabValue(contents));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabCreated, json_args);
}
void ExtensionBrowserEventRouter::TabInsertedAt(TabContents* contents,
int index,
bool foreground) {
// If tab is new, send tab-created event.
int tab_id = ExtensionTabUtil::GetTabId(contents);
if (tab_ids_.find(tab_id) == tab_ids_.end()) {
tab_ids_.insert(tab_id);
TabCreatedAt(contents, index, foreground);
return;
}
ListValue args;
args.Append(Value::CreateIntegerValue(tab_id));
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"newWindowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"newPosition", Value::CreateIntegerValue(index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabAttached, json_args);
}
void ExtensionBrowserEventRouter::TabDetachedAt(TabContents* contents,
int index) {
int tab_id = ExtensionTabUtil::GetTabId(contents);
if (tab_ids_.find(tab_id) == tab_ids_.end()) {
// The tab was removed. Don't send detach event.
return;
}
ListValue args;
args.Append(Value::CreateIntegerValue(tab_id));
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"oldWindowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"oldPosition", Value::CreateIntegerValue(index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabDetached, json_args);
}
void ExtensionBrowserEventRouter::TabClosingAt(TabContents* contents,
int index) {
int tab_id = ExtensionTabUtil::GetTabId(contents);
ListValue args;
args.Append(Value::CreateIntegerValue(tab_id));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabRemoved, json_args);
int removed_count = tab_ids_.erase(tab_id);
DCHECK(removed_count > 0);
}
void ExtensionBrowserEventRouter::TabSelectedAt(TabContents* old_contents,
TabContents* new_contents,
int index,
bool user_gesture) {
ListValue args;
args.Append(Value::CreateIntegerValue(
ExtensionTabUtil::GetTabId(new_contents)));
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(new_contents)));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(new_contents->profile(), kOnTabSelectionChanged, json_args);
}
void ExtensionBrowserEventRouter::TabMoved(TabContents* contents,
int from_index,
int to_index) {
ListValue args;
args.Append(Value::CreateIntegerValue(ExtensionTabUtil::GetTabId(contents)));
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"fromIndex", Value::CreateIntegerValue(from_index));
object_args->Set(L"toIndex", Value::CreateIntegerValue(to_index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabMoved, json_args);
}
void ExtensionBrowserEventRouter::TabChangedAt(TabContents* contents,
int index,
bool loading_only) { }
void ExtensionBrowserEventRouter::TabStripEmpty() { }
void ExtensionBrowserEventRouter::PageActionExecuted(Profile *profile,
std::string page_action_id,
int tab_id,
std::string url) {
ListValue args;
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"pageActionId", Value::CreateStringValue(page_action_id));
DictionaryValue *data = new DictionaryValue();
data->Set(L"tabId", Value::CreateIntegerValue(tab_id));
data->Set(L"tabUrl", Value::CreateStringValue(url));
object_args->Set(L"data", data);
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(profile, kOnPageActionExecuted, json_args);
}
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