blob: 991aa43278a1ebafbd702cda6c9ef74501e4b46b [file] [log] [blame]
// 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/extension_view_host.h"
#include "base/macros.h"
#include "base/strings/string_piece.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/browser_extension_window_controller.h"
#include "chrome/browser/extensions/extension_view.h"
#include "chrome/browser/extensions/window_controller.h"
#include "chrome/browser/file_select_helper.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/ui/autofill/chrome_autofill_client.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/color_chooser.h"
#include "components/autofill/content/browser/content_autofill_driver_factory.h"
#include "components/autofill/core/browser/autofill_manager.h"
#include "components/performance_manager/performance_manager_tab_helper.h"
#include "components/performance_manager/public/performance_manager.h"
#include "components/web_modal/web_contents_modal_dialog_manager.h"
#include "content/public/browser/file_select_listener.h"
#include "content/public/browser/keyboard_event_processing_result.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/runtime_data.h"
#include "third_party/blink/public/platform/web_input_event.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/events/keycodes/keyboard_codes.h"
using content::NativeWebKeyboardEvent;
using content::OpenURLParams;
using content::RenderViewHost;
using content::WebContents;
using content::WebContentsObserver;
using web_modal::WebContentsModalDialogManager;
namespace extensions {
// Notifies an ExtensionViewHost when a WebContents is destroyed.
class ExtensionViewHost::AssociatedWebContentsObserver
: public WebContentsObserver {
public:
AssociatedWebContentsObserver(ExtensionViewHost* host,
WebContents* web_contents)
: WebContentsObserver(web_contents), host_(host) {}
~AssociatedWebContentsObserver() override {}
// content::WebContentsObserver:
void WebContentsDestroyed() override {
// Deleting |this| from here is safe.
host_->SetAssociatedWebContents(NULL);
}
private:
ExtensionViewHost* host_;
DISALLOW_COPY_AND_ASSIGN(AssociatedWebContentsObserver);
};
ExtensionViewHost::ExtensionViewHost(
const Extension* extension,
content::SiteInstance* site_instance,
const GURL& url,
ViewType host_type)
: ExtensionHost(extension, site_instance, url, host_type),
associated_web_contents_(NULL) {
// Not used for panels, see PanelHost.
DCHECK(host_type == VIEW_TYPE_EXTENSION_DIALOG ||
host_type == VIEW_TYPE_EXTENSION_POPUP);
// Attach WebContents helpers. Extension tabs automatically get them attached
// in TabHelpers::AttachTabHelpers, but popups don't.
// TODO(kalman): How much of TabHelpers::AttachTabHelpers should be here?
autofill::ChromeAutofillClient::CreateForWebContents(host_contents());
autofill::ContentAutofillDriverFactory::CreateForWebContentsAndDelegate(
host_contents(),
autofill::ChromeAutofillClient::FromWebContents(host_contents()),
g_browser_process->GetApplicationLocale(),
autofill::AutofillManager::ENABLE_AUTOFILL_DOWNLOAD_MANAGER);
if (performance_manager::PerformanceManager::IsAvailable()) {
performance_manager::PerformanceManagerTabHelper::CreateForWebContents(
host_contents());
}
// The popup itself cannot be zoomed, but we must specify a zoom level to use.
// Otherwise, if a user zooms a page of the same extension, the popup would
// use the per-origin zoom level.
if (host_type == VIEW_TYPE_EXTENSION_POPUP) {
content::HostZoomMap* zoom_map =
content::HostZoomMap::GetForWebContents(host_contents());
zoom_map->SetTemporaryZoomLevel(
host_contents()->GetRenderViewHost()->GetProcess()->GetID(),
host_contents()->GetRenderViewHost()->GetRoutingID(),
zoom_map->GetDefaultZoomLevel());
}
}
ExtensionViewHost::~ExtensionViewHost() {
// The hosting WebContents will be deleted in the base class, so unregister
// this object before it deletes the attached WebContentsModalDialogManager.
WebContentsModalDialogManager* manager =
WebContentsModalDialogManager::FromWebContents(host_contents());
if (manager)
manager->SetDelegate(NULL);
}
void ExtensionViewHost::CreateView(Browser* browser) {
view_ = CreateExtensionView(this, browser);
}
void ExtensionViewHost::SetAssociatedWebContents(WebContents* web_contents) {
associated_web_contents_ = web_contents;
if (associated_web_contents_) {
// Observe the new WebContents for deletion.
associated_web_contents_observer_.reset(
new AssociatedWebContentsObserver(this, associated_web_contents_));
} else {
associated_web_contents_observer_.reset();
}
}
bool ExtensionViewHost::UnhandledKeyboardEvent(
WebContents* source,
const content::NativeWebKeyboardEvent& event) {
return view_->HandleKeyboardEvent(source, event);
}
// ExtensionHost overrides:
void ExtensionViewHost::OnDidStopFirstLoad() {
view_->OnLoaded();
}
void ExtensionViewHost::LoadInitialURL() {
if (!ExtensionSystem::Get(browser_context())->
runtime_data()->IsBackgroundPageReady(extension())) {
// Make sure the background page loads before any others.
registrar_.Add(this,
extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
content::Source<Extension>(extension()));
return;
}
// Popups may spawn modal dialogs, which need positioning information.
if (extension_host_type() == VIEW_TYPE_EXTENSION_POPUP) {
WebContentsModalDialogManager::CreateForWebContents(host_contents());
WebContentsModalDialogManager::FromWebContents(
host_contents())->SetDelegate(this);
}
ExtensionHost::LoadInitialURL();
}
bool ExtensionViewHost::IsBackgroundPage() const {
DCHECK(view_);
return false;
}
// content::WebContentsDelegate overrides:
WebContents* ExtensionViewHost::OpenURLFromTab(
WebContents* source,
const OpenURLParams& params) {
// Whitelist the dispositions we will allow to be opened.
switch (params.disposition) {
case WindowOpenDisposition::SINGLETON_TAB:
case WindowOpenDisposition::NEW_FOREGROUND_TAB:
case WindowOpenDisposition::NEW_BACKGROUND_TAB:
case WindowOpenDisposition::NEW_POPUP:
case WindowOpenDisposition::NEW_WINDOW:
case WindowOpenDisposition::SAVE_TO_DISK:
case WindowOpenDisposition::OFF_THE_RECORD: {
// Only allow these from hosts that are bound to a browser (e.g. popups).
// Otherwise they are not driven by a user gesture.
Browser* browser = view_->GetBrowser();
return browser ? browser->OpenURL(params) : nullptr;
}
default:
return nullptr;
}
}
bool ExtensionViewHost::ShouldTransferNavigation(
bool is_main_frame_navigation) {
// Block navigations that cause main frame of an extension pop-up (or
// background page) to navigate to non-extension content (i.e. to web
// content).
return !is_main_frame_navigation;
}
content::KeyboardEventProcessingResult
ExtensionViewHost::PreHandleKeyboardEvent(WebContents* source,
const NativeWebKeyboardEvent& event) {
if (extension_host_type() == VIEW_TYPE_EXTENSION_POPUP &&
event.GetType() == NativeWebKeyboardEvent::kRawKeyDown &&
event.windows_key_code == ui::VKEY_ESCAPE) {
return content::KeyboardEventProcessingResult::NOT_HANDLED_IS_SHORTCUT;
}
// Handle higher priority browser shortcuts such as Ctrl-w.
Browser* browser = view_->GetBrowser();
if (browser)
return browser->PreHandleKeyboardEvent(source, event);
return content::KeyboardEventProcessingResult::NOT_HANDLED;
}
bool ExtensionViewHost::HandleKeyboardEvent(
WebContents* source,
const NativeWebKeyboardEvent& event) {
if (extension_host_type() == VIEW_TYPE_EXTENSION_POPUP) {
if (event.GetType() == NativeWebKeyboardEvent::kRawKeyDown &&
event.windows_key_code == ui::VKEY_ESCAPE) {
Close();
return true;
}
}
return UnhandledKeyboardEvent(source, event);
}
bool ExtensionViewHost::PreHandleGestureEvent(
content::WebContents* source,
const blink::WebGestureEvent& event) {
// Disable pinch zooming.
return blink::WebInputEvent::IsPinchGestureEventType(event.GetType());
}
content::ColorChooser* ExtensionViewHost::OpenColorChooser(
WebContents* web_contents,
SkColor initial_color,
const std::vector<blink::mojom::ColorSuggestionPtr>& suggestions) {
// Similar to the file chooser below, opening a color chooser requires a
// visible <input> element to click on. Therefore this code only exists for
// extensions with a view.
return chrome::ShowColorChooser(web_contents, initial_color);
}
void ExtensionViewHost::RunFileChooser(
content::RenderFrameHost* render_frame_host,
std::unique_ptr<content::FileSelectListener> listener,
const blink::mojom::FileChooserParams& params) {
// For security reasons opening a file picker requires a visible <input>
// element to click on, so this code only exists for extensions with a view.
FileSelectHelper::RunFileChooser(render_frame_host, std::move(listener),
params);
}
void ExtensionViewHost::ResizeDueToAutoResize(WebContents* source,
const gfx::Size& new_size) {
view_->ResizeDueToAutoResize(source, new_size);
}
// content::WebContentsObserver overrides:
void ExtensionViewHost::RenderViewCreated(RenderViewHost* render_view_host) {
ExtensionHost::RenderViewCreated(render_view_host);
view_->RenderViewCreated(render_view_host);
}
// web_modal::WebContentsModalDialogManagerDelegate overrides:
web_modal::WebContentsModalDialogHost*
ExtensionViewHost::GetWebContentsModalDialogHost() {
return this;
}
bool ExtensionViewHost::IsWebContentsVisible(WebContents* web_contents) {
return platform_util::IsVisible(web_contents->GetNativeView());
}
gfx::NativeView ExtensionViewHost::GetHostView() const {
return view_->GetNativeView();
}
gfx::Point ExtensionViewHost::GetDialogPosition(const gfx::Size& size) {
if (!GetVisibleWebContents())
return gfx::Point();
gfx::Rect bounds = GetVisibleWebContents()->GetViewBounds();
return gfx::Point(
std::max(0, (bounds.width() - size.width()) / 2),
std::max(0, (bounds.height() - size.height()) / 2));
}
gfx::Size ExtensionViewHost::GetMaximumDialogSize() {
if (!GetVisibleWebContents())
return gfx::Size();
return GetVisibleWebContents()->GetViewBounds().size();
}
void ExtensionViewHost::AddObserver(
web_modal::ModalDialogHostObserver* observer) {
}
void ExtensionViewHost::RemoveObserver(
web_modal::ModalDialogHostObserver* observer) {
}
WindowController* ExtensionViewHost::GetExtensionWindowController() const {
Browser* browser = view_->GetBrowser();
return browser ? browser->extension_window_controller() : NULL;
}
WebContents* ExtensionViewHost::GetAssociatedWebContents() const {
return associated_web_contents_;
}
WebContents* ExtensionViewHost::GetVisibleWebContents() const {
if (associated_web_contents_)
return associated_web_contents_;
if (extension_host_type() == VIEW_TYPE_EXTENSION_POPUP)
return host_contents();
return NULL;
}
void ExtensionViewHost::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(type, extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY);
DCHECK(ExtensionSystem::Get(browser_context())
->runtime_data()
->IsBackgroundPageReady(extension()));
LoadInitialURL();
}
} // namespace extensions