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// Copyright 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/browser/extensions/api/tabs/ash_panel_contents.h"
#include "apps/ui/native_app_window.h"
#include "base/values.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/api/tabs/tabs_constants.h"
#include "chrome/browser/extensions/api/tabs/tabs_windows_api.h"
#include "chrome/browser/extensions/api/tabs/windows_event_router.h"
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/browser/extensions/window_controller_list.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/session_tab_helper.h"
#include "chrome/common/extensions/extension_messages.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "extensions/common/extension.h"
#include "ui/gfx/image/image.h"
using apps::AppWindow;
using apps::NativeAppWindow;
// AshPanelWindowController ----------------------------------------------------
// This class enables an AppWindow instance to be accessed (to a limited
// extent) via the chrome.windows and chrome.tabs API. This is a temporary
// bridge to support instantiating AppWindows from v1 apps, specifically
// for creating Panels in Ash. See crbug.com/160645.
class AshPanelWindowController : public extensions::WindowController {
public:
AshPanelWindowController(AppWindow* window, Profile* profile);
virtual ~AshPanelWindowController();
void NativeWindowChanged();
// Overridden from extensions::WindowController.
virtual int GetWindowId() const OVERRIDE;
virtual std::string GetWindowTypeText() const OVERRIDE;
virtual base::DictionaryValue* CreateWindowValueWithTabs(
const extensions::Extension* extension) const OVERRIDE;
virtual base::DictionaryValue* CreateTabValue(
const extensions::Extension* extension, int tab_index) const OVERRIDE;
virtual bool CanClose(Reason* reason) const OVERRIDE;
virtual void SetFullscreenMode(bool is_fullscreen,
const GURL& extension_url) const OVERRIDE;
virtual bool IsVisibleToExtension(
const extensions::Extension* extension) const OVERRIDE;
private:
AppWindow* app_window_; // Weak pointer; this is owned by app_window_
bool is_active_;
DISALLOW_COPY_AND_ASSIGN(AshPanelWindowController);
};
AshPanelWindowController::AshPanelWindowController(AppWindow* app_window,
Profile* profile)
: extensions::WindowController(app_window->GetBaseWindow(), profile),
app_window_(app_window),
is_active_(app_window->GetBaseWindow()->IsActive()) {
extensions::WindowControllerList::GetInstance()->AddExtensionWindow(this);
}
AshPanelWindowController::~AshPanelWindowController() {
extensions::WindowControllerList::GetInstance()->RemoveExtensionWindow(this);
}
int AshPanelWindowController::GetWindowId() const {
return static_cast<int>(app_window_->session_id().id());
}
std::string AshPanelWindowController::GetWindowTypeText() const {
return extensions::tabs_constants::kWindowTypeValuePanel;
}
base::DictionaryValue* AshPanelWindowController::CreateWindowValueWithTabs(
const extensions::Extension* extension) const {
DCHECK(IsVisibleToExtension(extension));
base::DictionaryValue* result = CreateWindowValue();
base::DictionaryValue* tab_value = CreateTabValue(extension, 0);
if (tab_value) {
base::ListValue* tab_list = new base::ListValue();
tab_list->Append(tab_value);
result->Set(extensions::tabs_constants::kTabsKey, tab_list);
}
return result;
}
base::DictionaryValue* AshPanelWindowController::CreateTabValue(
const extensions::Extension* extension, int tab_index) const {
if ((extension && !IsVisibleToExtension(extension)) ||
(tab_index > 0)) {
return NULL;
}
content::WebContents* web_contents = app_window_->web_contents();
if (!web_contents)
return NULL;
base::DictionaryValue* tab_value = new base::DictionaryValue();
tab_value->SetInteger(extensions::tabs_constants::kIdKey,
SessionID::IdForTab(web_contents));
tab_value->SetInteger(extensions::tabs_constants::kIndexKey, 0);
const int window_id = GetWindowId();
tab_value->SetInteger(extensions::tabs_constants::kWindowIdKey, window_id);
tab_value->SetString(
extensions::tabs_constants::kUrlKey, web_contents->GetURL().spec());
tab_value->SetString(
extensions::tabs_constants::kStatusKey,
extensions::ExtensionTabUtil::GetTabStatusText(
web_contents->IsLoading()));
tab_value->SetBoolean(extensions::tabs_constants::kActiveKey,
app_window_->GetBaseWindow()->IsActive());
// AppWindow only ever contains one tab, so that tab is always effectively
// selcted and highlighted (for purposes of the chrome.tabs API).
tab_value->SetInteger(extensions::tabs_constants::kWindowIdKey, window_id);
tab_value->SetInteger(extensions::tabs_constants::kIdKey, window_id);
tab_value->SetBoolean(extensions::tabs_constants::kSelectedKey, true);
tab_value->SetBoolean(extensions::tabs_constants::kHighlightedKey, true);
tab_value->SetBoolean(extensions::tabs_constants::kPinnedKey, false);
tab_value->SetString(
extensions::tabs_constants::kTitleKey, web_contents->GetTitle());
tab_value->SetBoolean(
extensions::tabs_constants::kIncognitoKey,
web_contents->GetBrowserContext()->IsOffTheRecord());
return tab_value;
}
bool AshPanelWindowController::CanClose(Reason* reason) const {
return true;
}
void AshPanelWindowController::SetFullscreenMode(
bool is_fullscreen, const GURL& extension_url) const {
// Do nothing. Panels cannot be fullscreen.
}
bool AshPanelWindowController::IsVisibleToExtension(
const extensions::Extension* extension) const {
return app_window_->extension() &&
extension->id() == app_window_->extension()->id();
}
void AshPanelWindowController::NativeWindowChanged() {
bool active = app_window_->GetBaseWindow()->IsActive();
if (active == is_active_)
return;
is_active_ = active;
// Let the extension API know that the active window changed.
extensions::TabsWindowsAPI* tabs_windows_api =
extensions::TabsWindowsAPI::Get(profile());
if (!tabs_windows_api)
return;
tabs_windows_api->windows_event_router()->OnActiveWindowChanged(
active ? this : NULL);
}
// AshPanelContents -----------------------------------------------------
AshPanelContents::AshPanelContents(AppWindow* host) : host_(host) {}
AshPanelContents::~AshPanelContents() {
}
void AshPanelContents::Initialize(content::BrowserContext* context,
const GURL& url) {
url_ = url;
extension_function_dispatcher_.reset(
new ExtensionFunctionDispatcher(context, this));
web_contents_.reset(
content::WebContents::Create(content::WebContents::CreateParams(
context, content::SiteInstance::CreateForURL(context, url_))));
// Needed to give the web contents a Window ID. Extension APIs expect web
// contents to have a Window ID. Also required for FaviconTabHelper to
// correctly set the window icon and title.
SessionTabHelper::CreateForWebContents(web_contents_.get());
SessionTabHelper::FromWebContents(web_contents_.get())->SetWindowID(
host_->session_id());
// Responsible for loading favicons for the Launcher, which uses different
// logic than the FaviconTabHelper associated with web_contents_
// (instantiated in AppWindow::Init())
launcher_favicon_loader_.reset(
new LauncherFaviconLoader(this, web_contents_.get()));
content::WebContentsObserver::Observe(web_contents_.get());
}
void AshPanelContents::LoadContents(int32 creator_process_id) {
// This must be created after the native window has been created.
window_controller_.reset(new AshPanelWindowController(
host_, Profile::FromBrowserContext(host_->browser_context())));
web_contents_->GetController().LoadURL(
url_, content::Referrer(), content::PAGE_TRANSITION_LINK,
std::string());
}
void AshPanelContents::NativeWindowChanged(NativeAppWindow* native_app_window) {
if (window_controller_)
window_controller_->NativeWindowChanged();
}
void AshPanelContents::NativeWindowClosed() {
}
content::WebContents* AshPanelContents::GetWebContents() const {
return web_contents_.get();
}
void AshPanelContents::FaviconUpdated() {
gfx::Image new_image = gfx::Image::CreateFrom1xBitmap(
launcher_favicon_loader_->GetFavicon());
host_->UpdateAppIcon(new_image);
}
bool AshPanelContents::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(AshPanelContents, message)
IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
extensions::WindowController*
AshPanelContents::GetExtensionWindowController() const {
return window_controller_.get();
}
content::WebContents* AshPanelContents::GetAssociatedWebContents() const {
return web_contents_.get();
}
void AshPanelContents::OnRequest(
const ExtensionHostMsg_Request_Params& params) {
extension_function_dispatcher_->Dispatch(
params, web_contents_->GetRenderViewHost());
}
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