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https://bitbucket.org/chromiumembedded/cef
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100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
// Copyright 2017 the Chromium Embedded Framework Authors. Portions copyright
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// 2013 The Chromium Authors. All rights reserved. Use of this source code is
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// governed by a BSD-style license that can be found in the LICENSE file.
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#include "libcef/browser/extensions/extension_view_host.h"
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#include "libcef/browser/browser_platform_delegate.h"
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#include "libcef/browser/extensions/extension_host_delegate.h"
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#include "content/public/browser/web_contents.h"
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#include "extensions/browser/process_util.h"
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#include "third_party/blink/public/common/input/web_gesture_event.h"
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using content::NativeWebKeyboardEvent;
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using content::OpenURLParams;
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using content::WebContents;
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using content::WebContentsObserver;
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namespace extensions {
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CefExtensionViewHost::CefExtensionViewHost(AlloyBrowserHostImpl* browser,
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const Extension* extension,
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content::WebContents* host_contents,
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const GURL& url,
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mojom::ViewType host_type)
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: ExtensionHost(new CefExtensionHostDelegate(browser),
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extension,
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host_contents->GetBrowserContext(),
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host_contents,
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url,
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host_type) {
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// Only used for dialogs and popups.
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DCHECK(host_type == mojom::ViewType::kExtensionDialog ||
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host_type == mojom::ViewType::kExtensionPopup);
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}
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CefExtensionViewHost::~CefExtensionViewHost() {}
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void CefExtensionViewHost::OnDidStopFirstLoad() {
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// Nothing to do here, but don't call the base class method.
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}
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void CefExtensionViewHost::LoadInitialURL() {
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if (process_util::GetPersistentBackgroundPageState(*extension(),
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browser_context()) ==
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process_util::PersistentBackgroundPageState::kNotReady) {
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// Make sure the background page loads before any others.
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host_registry_observation_.Observe(
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ExtensionHostRegistry::Get(browser_context()));
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return;
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}
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ExtensionHost::LoadInitialURL();
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}
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bool CefExtensionViewHost::IsBackgroundPage() const {
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return false;
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}
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bool CefExtensionViewHost::ShouldAllowRendererInitiatedCrossProcessNavigation(
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bool is_main_frame_navigation) {
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// Block navigations that cause the main frame to navigate to non-extension
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// content (i.e. to web content).
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return !is_main_frame_navigation;
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}
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bool CefExtensionViewHost::PreHandleGestureEvent(
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content::WebContents* source,
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const blink::WebGestureEvent& event) {
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// Disable pinch zooming.
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return blink::WebInputEvent::IsPinchGestureEventType(event.GetType());
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}
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WebContents* CefExtensionViewHost::GetVisibleWebContents() const {
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if (extension_host_type() == mojom::ViewType::kExtensionPopup)
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return host_contents();
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return nullptr;
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}
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void CefExtensionViewHost::OnExtensionHostDocumentElementAvailable(
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content::BrowserContext* host_browser_context,
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ExtensionHost* extension_host) {
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DCHECK(extension_host->extension());
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if (host_browser_context != browser_context() ||
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extension_host->extension() != extension() ||
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extension_host->extension_host_type() !=
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mojom::ViewType::kExtensionBackgroundPage) {
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return;
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}
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DCHECK_EQ(process_util::PersistentBackgroundPageState::kReady,
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process_util::GetPersistentBackgroundPageState(*extension(),
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browser_context()));
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// We only needed to wait for the background page to load, so stop observing.
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host_registry_observation_.Reset();
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LoadInitialURL();
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}
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} // namespace extensions
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