cef/libcef/browser/extensions/extension_view_host.cc

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// Copyright 2017 the Chromium Embedded Framework Authors. Portions 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 "libcef/browser/extensions/extension_view_host.h"
#include "libcef/browser/browser_platform_delegate.h"
#include "libcef/browser/extensions/extension_host_delegate.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/notification_types.h"
#include "extensions/browser/runtime_data.h"
#include "third_party/blink/public/platform/web_gesture_event.h"
using content::NativeWebKeyboardEvent;
using content::OpenURLParams;
using content::WebContents;
using content::WebContentsObserver;
namespace extensions {
CefExtensionViewHost::CefExtensionViewHost(
CefBrowserHostImpl* browser,
const Extension* extension,
content::BrowserContext* browser_context,
content::WebContents* host_contents,
const GURL& url,
ViewType host_type)
: ExtensionHost(new CefExtensionHostDelegate(browser),
extension,
browser_context,
host_contents,
url,
host_type) {
// Only used for dialogs and popups.
DCHECK(host_type == VIEW_TYPE_EXTENSION_DIALOG ||
host_type == VIEW_TYPE_EXTENSION_POPUP);
}
CefExtensionViewHost::~CefExtensionViewHost() {}
void CefExtensionViewHost::OnDidStopFirstLoad() {
// Nothing to do here, but don't call the base class method.
}
void CefExtensionViewHost::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;
}
ExtensionHost::LoadInitialURL();
}
bool CefExtensionViewHost::IsBackgroundPage() const {
return false;
}
bool CefExtensionViewHost::ShouldTransferNavigation(
bool is_main_frame_navigation) {
// Block navigations that cause the main frame to navigate to non-extension
// content (i.e. to web content).
return !is_main_frame_navigation;
}
bool CefExtensionViewHost::PreHandleGestureEvent(
content::WebContents* source,
const blink::WebGestureEvent& event) {
// Disable pinch zooming.
return blink::WebInputEvent::IsPinchGestureEventType(event.GetType());
}
WebContents* CefExtensionViewHost::GetVisibleWebContents() const {
if (extension_host_type() == VIEW_TYPE_EXTENSION_POPUP)
return host_contents();
return nullptr;
}
void CefExtensionViewHost::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