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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 "chrome/browser/ui/panels/panel_host.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/chrome_page_zoom.h"
#include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
#include "chrome/browser/extensions/window_controller.h"
#include "chrome/browser/favicon/favicon_tab_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/session_tab_helper.h"
#include "chrome/browser/ui/browser_navigator.h"
#include "chrome/browser/ui/panels/panel.h"
#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
#include "components/ui/zoom/zoom_controller.h"
#include "content/public/browser/invalidate_type.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/view_type_utils.h"
#include "extensions/common/extension_messages.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_message_macros.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/image/image.h"
using base::UserMetricsAction;
PanelHost::PanelHost(Panel* panel, Profile* profile)
: panel_(panel),
profile_(profile),
extension_function_dispatcher_(profile, this),
weak_factory_(this) {
}
PanelHost::~PanelHost() {
}
void PanelHost::Init(const GURL& url) {
if (url.is_empty())
return;
content::WebContents::CreateParams create_params(
profile_, content::SiteInstance::CreateForURL(profile_, url));
web_contents_.reset(content::WebContents::Create(create_params));
extensions::SetViewType(web_contents_.get(), extensions::VIEW_TYPE_PANEL);
web_contents_->SetDelegate(this);
// web_contents_ may be passed to chrome_page_zoom::Zoom(), so it needs
// a ZoomController.
ui_zoom::ZoomController::CreateForWebContents(web_contents_.get());
content::WebContentsObserver::Observe(web_contents_.get());
// Needed to give the web contents a Tab ID. Extension APIs
// expect web contents to have a Tab ID.
SessionTabHelper::CreateForWebContents(web_contents_.get());
SessionTabHelper::FromWebContents(web_contents_.get())->SetWindowID(
panel_->session_id());
FaviconTabHelper::CreateForWebContents(web_contents_.get());
PrefsTabHelper::CreateForWebContents(web_contents_.get());
extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
web_contents_.get());
web_contents_->GetController().LoadURL(
url, content::Referrer(), ui::PAGE_TRANSITION_LINK, std::string());
}
void PanelHost::DestroyWebContents() {
// Cannot do a web_contents_.reset() because web_contents_.get() will
// still return the pointer when we CHECK in WebContentsDestroyed (or if
// we get called back in the middle of web contents destruction, which
// WebView might do when it detects the web contents is destroyed).
content::WebContents* contents = web_contents_.release();
delete contents;
}
gfx::Image PanelHost::GetPageIcon() const {
if (!web_contents_.get())
return gfx::Image();
FaviconTabHelper* favicon_tab_helper =
FaviconTabHelper::FromWebContents(web_contents_.get());
CHECK(favicon_tab_helper);
return favicon_tab_helper->GetFavicon();
}
content::WebContents* PanelHost::OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) {
// These dispositions aren't really navigations.
if (params.disposition == SUPPRESS_OPEN ||
params.disposition == SAVE_TO_DISK ||
params.disposition == IGNORE_ACTION)
return NULL;
// Only allow clicks on links.
if (params.transition != ui::PAGE_TRANSITION_LINK)
return NULL;
// Force all links to open in a new tab.
chrome::NavigateParams navigate_params(profile_,
params.url,
params.transition);
switch (params.disposition) {
case NEW_BACKGROUND_TAB:
case NEW_WINDOW:
case OFF_THE_RECORD:
navigate_params.disposition = params.disposition;
break;
default:
navigate_params.disposition = NEW_FOREGROUND_TAB;
break;
}
chrome::Navigate(&navigate_params);
return navigate_params.target_contents;
}
void PanelHost::NavigationStateChanged(content::WebContents* source,
content::InvalidateTypes changed_flags) {
// Only need to update the title if the title changed while not loading,
// because the title is also updated when loading state changes.
if ((changed_flags & content::INVALIDATE_TYPE_TAB) ||
((changed_flags & content::INVALIDATE_TYPE_TITLE) &&
!source->IsLoading()))
panel_->UpdateTitleBar();
}
void PanelHost::AddNewContents(content::WebContents* source,
content::WebContents* new_contents,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture,
bool* was_blocked) {
chrome::NavigateParams navigate_params(profile_, new_contents->GetURL(),
ui::PAGE_TRANSITION_LINK);
navigate_params.target_contents = new_contents;
// Force all links to open in a new tab, even if they were trying to open a
// window.
navigate_params.disposition =
disposition == NEW_BACKGROUND_TAB ? disposition : NEW_FOREGROUND_TAB;
navigate_params.window_bounds = initial_pos;
navigate_params.user_gesture = user_gesture;
navigate_params.extension_app_id = panel_->extension_id();
chrome::Navigate(&navigate_params);
}
void PanelHost::ActivateContents(content::WebContents* contents) {
panel_->Activate();
}
void PanelHost::DeactivateContents(content::WebContents* contents) {
panel_->Deactivate();
}
void PanelHost::LoadingStateChanged(content::WebContents* source,
bool to_different_document) {
bool is_loading = source->IsLoading() && to_different_document;
panel_->LoadingStateChanged(is_loading);
}
void PanelHost::CloseContents(content::WebContents* source) {
panel_->Close();
}
void PanelHost::MoveContents(content::WebContents* source,
const gfx::Rect& pos) {
panel_->SetBounds(pos);
}
bool PanelHost::IsPopupOrPanel(const content::WebContents* source) const {
return true;
}
void PanelHost::ContentsZoomChange(bool zoom_in) {
Zoom(zoom_in ? content::PAGE_ZOOM_IN : content::PAGE_ZOOM_OUT);
}
void PanelHost::HandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) {
return panel_->HandleKeyboardEvent(event);
}
void PanelHost::WebContentsFocused(content::WebContents* contents) {
panel_->WebContentsFocused(contents);
}
void PanelHost::ResizeDueToAutoResize(content::WebContents* web_contents,
const gfx::Size& new_size) {
panel_->OnContentsAutoResized(new_size);
}
void PanelHost::RenderViewCreated(content::RenderViewHost* render_view_host) {
extensions::WindowController* window = GetExtensionWindowController();
render_view_host->Send(new ExtensionMsg_UpdateBrowserWindowId(
render_view_host->GetRoutingID(), window->GetWindowId()));
}
void PanelHost::RenderProcessGone(base::TerminationStatus status) {
CloseContents(web_contents_.get());
}
void PanelHost::WebContentsDestroyed() {
// Web contents should only be destroyed by us.
CHECK(!web_contents_.get());
// Close the panel after we return to the message loop (not immediately,
// otherwise, it may destroy this object before the stack has a chance
// to cleanly unwind.)
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&PanelHost::ClosePanel, weak_factory_.GetWeakPtr()));
}
void PanelHost::ClosePanel() {
panel_->Close();
}
bool PanelHost::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PanelHost, message)
IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PanelHost::OnRequest(const ExtensionHostMsg_Request_Params& params) {
if (!web_contents_.get())
return;
extension_function_dispatcher_.Dispatch(params,
web_contents_->GetRenderViewHost());
}
extensions::WindowController* PanelHost::GetExtensionWindowController() const {
return panel_->extension_window_controller();
}
content::WebContents* PanelHost::GetAssociatedWebContents() const {
return web_contents_.get();
}
void PanelHost::Reload() {
content::RecordAction(UserMetricsAction("Reload"));
web_contents_->GetController().Reload(true);
}
void PanelHost::ReloadIgnoringCache() {
content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
web_contents_->GetController().ReloadIgnoringCache(true);
}
void PanelHost::StopLoading() {
content::RecordAction(UserMetricsAction("Stop"));
web_contents_->Stop();
}
void PanelHost::Zoom(content::PageZoom zoom) {
chrome_page_zoom::Zoom(web_contents_.get(), zoom);
}
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