479 lines
16 KiB
C++
479 lines
16 KiB
C++
// Copyright 2015 The Chromium Embedded Framework Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/alloy/browser_platform_delegate_alloy.h"
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#include "libcef/browser/alloy/alloy_browser_host_impl.h"
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#include "libcef/browser/extensions/browser_extensions_util.h"
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#include "libcef/browser/extensions/extension_background_host.h"
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#include "libcef/browser/extensions/extension_system.h"
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#include "libcef/browser/extensions/extension_view_host.h"
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#include "libcef/browser/extensions/extension_web_contents_observer.h"
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#include "libcef/browser/printing/print_view_manager.h"
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#include "libcef/common/extensions/extensions_util.h"
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#include "libcef/common/net/url_util.h"
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#include "libcef/features/runtime_checks.h"
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#include "base/logging.h"
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#include "chrome/browser/printing/print_view_manager.h"
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#include "chrome/browser/printing/print_view_manager_common.h"
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#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
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#include "components/find_in_page/find_tab_helper.h"
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#include "components/find_in_page/find_types.h"
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#include "components/zoom/zoom_controller.h"
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#include "content/browser/renderer_host/render_widget_host_impl.h"
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#include "content/browser/web_contents/web_contents_impl.h"
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#include "content/public/browser/render_view_host.h"
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#include "content/public/browser/render_widget_host.h"
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#include "extensions/browser/process_manager.h"
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#include "pdf/pdf_features.h"
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#include "printing/mojom/print.mojom.h"
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#include "third_party/blink/public/mojom/frame/find_in_page.mojom.h"
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namespace {
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printing::CefPrintViewManager* GetPrintViewManager(
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content::WebContents* web_contents) {
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return printing::CefPrintViewManager::FromWebContents(web_contents);
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}
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} // namespace
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CefBrowserPlatformDelegateAlloy::CefBrowserPlatformDelegateAlloy()
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: weak_ptr_factory_(this) {}
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content::WebContents* CefBrowserPlatformDelegateAlloy::CreateWebContents(
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CefBrowserCreateParams& create_params,
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bool& own_web_contents) {
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REQUIRE_ALLOY_RUNTIME();
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DCHECK(primary_);
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// Get or create the request context and browser context.
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CefRefPtr<CefRequestContextImpl> request_context_impl =
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CefRequestContextImpl::GetOrCreateForRequestContext(
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create_params.request_context);
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CHECK(request_context_impl);
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auto cef_browser_context = request_context_impl->GetBrowserContext();
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CHECK(cef_browser_context);
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auto browser_context = cef_browser_context->AsBrowserContext();
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if (!create_params.request_context) {
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// Using the global request context.
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create_params.request_context = request_context_impl.get();
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}
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scoped_refptr<content::SiteInstance> site_instance;
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if (extensions::ExtensionsEnabled() && !create_params.url.empty()) {
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GURL gurl = url_util::MakeGURL(create_params.url, /*fixup=*/true);
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if (!create_params.extension) {
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// We might be loading an extension app view where the extension URL is
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// provided by the client.
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create_params.extension =
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extensions::GetExtensionForUrl(browser_context, gurl);
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}
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if (create_params.extension) {
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if (create_params.extension_host_type ==
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extensions::mojom::ViewType::kInvalid) {
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// Default to dialog behavior.
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create_params.extension_host_type =
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extensions::mojom::ViewType::kExtensionDialog;
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}
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// Extension resources will fail to load if we don't use a SiteInstance
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// associated with the extension.
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// (AlloyContentBrowserClient::SiteInstanceGotProcess won't find the
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// extension to register with InfoMap, and AllowExtensionResourceLoad in
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// ExtensionProtocolHandler::MaybeCreateJob will return false resulting in
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// ERR_BLOCKED_BY_CLIENT).
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site_instance = extensions::ProcessManager::Get(browser_context)
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->GetSiteInstanceForURL(gurl);
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DCHECK(site_instance);
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}
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}
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content::WebContents::CreateParams wc_create_params(browser_context,
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site_instance);
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if (IsWindowless()) {
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// Create the OSR view for the WebContents.
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CreateViewForWebContents(&wc_create_params.view,
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&wc_create_params.delegate_view);
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}
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auto web_contents = content::WebContents::Create(wc_create_params);
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CHECK(web_contents);
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own_web_contents = true;
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return web_contents.release();
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}
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void CefBrowserPlatformDelegateAlloy::WebContentsCreated(
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content::WebContents* web_contents,
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bool owned) {
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CefBrowserPlatformDelegate::WebContentsCreated(web_contents, owned);
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find_in_page::FindTabHelper::CreateForWebContents(web_contents);
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if (owned) {
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SetOwnedWebContents(web_contents);
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}
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}
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void CefBrowserPlatformDelegateAlloy::AddNewContents(
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content::WebContents* source,
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std::unique_ptr<content::WebContents> new_contents,
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const GURL& target_url,
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WindowOpenDisposition disposition,
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const gfx::Rect& initial_rect,
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bool user_gesture,
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bool* was_blocked) {
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REQUIRE_ALLOY_RUNTIME();
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DCHECK(primary_);
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CefRefPtr<AlloyBrowserHostImpl> owner =
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AlloyBrowserHostImpl::GetBrowserForContents(new_contents.get());
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if (owner) {
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// Taking ownership of |new_contents|.
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static_cast<CefBrowserPlatformDelegateAlloy*>(
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owner->platform_delegate_.get())
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->SetOwnedWebContents(new_contents.release());
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return;
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}
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if (extension_host_) {
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extension_host_->AddNewContents(source, std::move(new_contents), target_url,
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disposition, initial_rect, user_gesture,
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was_blocked);
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}
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}
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bool CefBrowserPlatformDelegateAlloy::
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ShouldAllowRendererInitiatedCrossProcessNavigation(
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bool is_main_frame_navigation) {
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if (extension_host_) {
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return extension_host_->ShouldAllowRendererInitiatedCrossProcessNavigation(
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is_main_frame_navigation);
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}
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return true;
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}
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void CefBrowserPlatformDelegateAlloy::RenderViewCreated(
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content::RenderViewHost* render_view_host) {
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// Indicate that the view has an external parent (namely us). This changes the
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// default view behavior in some cases (e.g. focus handling on Linux).
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if (!IsViewsHosted() && render_view_host->GetWidget()->GetView())
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render_view_host->GetWidget()->GetView()->SetHasExternalParent(true);
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}
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void CefBrowserPlatformDelegateAlloy::RenderViewReady() {
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ConfigureAutoResize();
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}
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void CefBrowserPlatformDelegateAlloy::BrowserCreated(
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CefBrowserHostBase* browser) {
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CefBrowserPlatformDelegate::BrowserCreated(browser);
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// Only register WebContents delegate/observers if we're the primary delegate.
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if (!primary_)
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return;
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DCHECK(!web_contents_->GetDelegate());
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web_contents_->SetDelegate(static_cast<AlloyBrowserHostImpl*>(browser));
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PrefsTabHelper::CreateForWebContents(web_contents_);
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printing::CefPrintViewManager::CreateForWebContents(web_contents_);
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if (extensions::ExtensionsEnabled()) {
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// Used by the tabs extension API.
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zoom::ZoomController::CreateForWebContents(web_contents_);
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}
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if (IsPrintPreviewSupported()) {
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web_contents_dialog_helper_.reset(
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new CefWebContentsDialogHelper(web_contents_, this));
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}
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}
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void CefBrowserPlatformDelegateAlloy::CreateExtensionHost(
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const extensions::Extension* extension,
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const GURL& url,
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extensions::mojom::ViewType host_type) {
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REQUIRE_ALLOY_RUNTIME();
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DCHECK(primary_);
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// Should get WebContentsCreated and BrowserCreated calls first.
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DCHECK(web_contents_);
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DCHECK(browser_);
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DCHECK(!extension_host_);
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auto alloy_browser = static_cast<AlloyBrowserHostImpl*>(browser_);
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if (host_type == extensions::mojom::ViewType::kExtensionDialog ||
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host_type == extensions::mojom::ViewType::kExtensionPopup) {
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// Create an extension host that we own.
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extension_host_ = new extensions::CefExtensionViewHost(
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alloy_browser, extension, web_contents_, url, host_type);
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// Trigger load of the extension URL.
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extension_host_->CreateRendererSoon();
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} else if (host_type ==
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extensions::mojom::ViewType::kExtensionBackgroundPage) {
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is_background_host_ = true;
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alloy_browser->is_background_host_ = true;
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// Create an extension host that will be owned by ProcessManager.
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extension_host_ = new extensions::CefExtensionBackgroundHost(
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alloy_browser,
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base::BindOnce(&CefBrowserPlatformDelegateAlloy::OnExtensionHostDeleted,
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weak_ptr_factory_.GetWeakPtr()),
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extension, web_contents_, url, host_type);
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// Load will be triggered by ProcessManager::CreateBackgroundHost.
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} else {
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NOTREACHED() << " Unsupported extension host type: " << host_type;
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}
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}
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extensions::ExtensionHost* CefBrowserPlatformDelegateAlloy::GetExtensionHost()
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const {
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return extension_host_;
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}
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void CefBrowserPlatformDelegateAlloy::BrowserDestroyed(
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CefBrowserHostBase* browser) {
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if (primary_) {
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DestroyExtensionHost();
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owned_web_contents_.reset();
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}
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CefBrowserPlatformDelegate::BrowserDestroyed(browser);
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}
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void CefBrowserPlatformDelegateAlloy::SendCaptureLostEvent() {
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if (!web_contents_)
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return;
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content::RenderViewHost* host = web_contents_->GetRenderViewHost();
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if (!host)
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return;
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content::RenderWidgetHostImpl* widget =
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content::RenderWidgetHostImpl::From(host->GetWidget());
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if (widget)
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widget->LostCapture();
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}
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#if BUILDFLAG(IS_WIN) || (BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC))
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void CefBrowserPlatformDelegateAlloy::NotifyMoveOrResizeStarted() {
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if (!web_contents_)
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return;
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// Dismiss any existing popups.
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web_contents_->ClearFocusedElement();
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}
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#endif
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bool CefBrowserPlatformDelegateAlloy::PreHandleGestureEvent(
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content::WebContents* source,
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const blink::WebGestureEvent& event) {
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if (extension_host_)
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return extension_host_->PreHandleGestureEvent(source, event);
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return false;
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}
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bool CefBrowserPlatformDelegateAlloy::IsNeverComposited(
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content::WebContents* web_contents) {
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if (extension_host_)
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return extension_host_->IsNeverComposited(web_contents);
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return false;
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}
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void CefBrowserPlatformDelegateAlloy::SetAutoResizeEnabled(
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bool enabled,
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const CefSize& min_size,
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const CefSize& max_size) {
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if (enabled == auto_resize_enabled_)
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return;
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auto_resize_enabled_ = enabled;
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if (enabled) {
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auto_resize_min_ = gfx::Size(min_size.width, min_size.height);
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auto_resize_max_ = gfx::Size(max_size.width, max_size.height);
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} else {
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auto_resize_min_ = auto_resize_max_ = gfx::Size();
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}
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ConfigureAutoResize();
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}
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void CefBrowserPlatformDelegateAlloy::ConfigureAutoResize() {
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if (!web_contents_ || !web_contents_->GetRenderWidgetHostView()) {
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return;
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}
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if (auto_resize_enabled_) {
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web_contents_->GetRenderWidgetHostView()->EnableAutoResize(
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auto_resize_min_, auto_resize_max_);
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} else {
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web_contents_->GetRenderWidgetHostView()->DisableAutoResize(gfx::Size());
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}
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}
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void CefBrowserPlatformDelegateAlloy::SetAccessibilityState(
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cef_state_t accessibility_state) {
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// Do nothing if state is set to default. It'll be disabled by default and
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// controlled by the commmand-line flags "force-renderer-accessibility" and
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// "disable-renderer-accessibility".
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if (accessibility_state == STATE_DEFAULT)
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return;
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content::WebContentsImpl* web_contents_impl =
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static_cast<content::WebContentsImpl*>(web_contents_);
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if (!web_contents_impl)
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return;
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ui::AXMode accMode;
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// In windowless mode set accessibility to TreeOnly mode. Else native
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// accessibility APIs, specific to each platform, are also created.
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if (accessibility_state == STATE_ENABLED) {
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accMode = IsWindowless() ? ui::kAXModeWebContentsOnly : ui::kAXModeComplete;
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}
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web_contents_impl->SetAccessibilityMode(accMode);
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}
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bool CefBrowserPlatformDelegateAlloy::IsPrintPreviewSupported() const {
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REQUIRE_ALLOY_RUNTIME();
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// Print preview is not currently supported with OSR.
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if (IsWindowless())
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return false;
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auto cef_browser_context =
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CefBrowserContext::FromBrowserContext(web_contents_->GetBrowserContext());
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return cef_browser_context->IsPrintPreviewSupported();
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}
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void CefBrowserPlatformDelegateAlloy::Print() {
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REQUIRE_ALLOY_RUNTIME();
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auto contents_to_use = printing::GetWebContentsToUse(web_contents_);
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if (!contents_to_use)
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return;
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auto rfh_to_use = printing::GetRenderFrameHostToUse(contents_to_use);
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if (!rfh_to_use)
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return;
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if (IsPrintPreviewSupported()) {
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GetPrintViewManager(contents_to_use)->PrintPreviewNow(rfh_to_use, false);
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} else {
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GetPrintViewManager(contents_to_use)->PrintNow(rfh_to_use);
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}
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}
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void CefBrowserPlatformDelegateAlloy::PrintToPDF(
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const CefString& path,
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const CefPdfPrintSettings& settings,
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CefRefPtr<CefPdfPrintCallback> callback) {
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REQUIRE_ALLOY_RUNTIME();
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auto contents_to_use = printing::GetWebContentsToUse(web_contents_);
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if (!contents_to_use)
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return;
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auto rfh_to_use = printing::GetRenderFrameHostToUse(contents_to_use);
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if (!rfh_to_use)
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return;
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printing::CefPrintViewManager::PdfPrintCallback pdf_callback;
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if (callback.get()) {
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pdf_callback = base::BindOnce(&CefPdfPrintCallback::OnPdfPrintFinished,
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callback.get(), path);
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}
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GetPrintViewManager(contents_to_use)
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->PrintToPDF(rfh_to_use, base::FilePath(path), settings,
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std::move(pdf_callback));
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}
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void CefBrowserPlatformDelegateAlloy::Find(const CefString& searchText,
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bool forward,
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bool matchCase,
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bool findNext) {
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if (!web_contents_)
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return;
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find_in_page::FindTabHelper::FromWebContents(web_contents_)
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->StartFinding(searchText.ToString16(), forward, matchCase, findNext,
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/*run_synchronously_for_testing=*/false);
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}
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void CefBrowserPlatformDelegateAlloy::StopFinding(bool clearSelection) {
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if (!web_contents_)
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return;
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last_search_result_ = find_in_page::FindNotificationDetails();
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find_in_page::FindTabHelper::FromWebContents(web_contents_)
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->StopFinding(clearSelection ? find_in_page::SelectionAction::kClear
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: find_in_page::SelectionAction::kKeep);
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}
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bool CefBrowserPlatformDelegateAlloy::HandleFindReply(
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int request_id,
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int number_of_matches,
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const gfx::Rect& selection_rect,
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int active_match_ordinal,
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bool final_update) {
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if (!web_contents_)
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return false;
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auto find_in_page =
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find_in_page::FindTabHelper::FromWebContents(web_contents_);
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find_in_page->HandleFindReply(request_id, number_of_matches, selection_rect,
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active_match_ordinal, final_update);
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if (!(find_in_page->find_result() == last_search_result_)) {
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last_search_result_ = find_in_page->find_result();
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return true;
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}
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return false;
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}
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base::RepeatingClosure
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CefBrowserPlatformDelegateAlloy::GetBoundsChangedCallback() {
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if (web_contents_dialog_helper_) {
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return web_contents_dialog_helper_->GetBoundsChangedCallback();
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}
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return base::RepeatingClosure();
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}
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void CefBrowserPlatformDelegateAlloy::SetOwnedWebContents(
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content::WebContents* owned_contents) {
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DCHECK(primary_);
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// Should not currently own a WebContents.
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CHECK(!owned_web_contents_);
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owned_web_contents_.reset(owned_contents);
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}
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void CefBrowserPlatformDelegateAlloy::DestroyExtensionHost() {
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if (!extension_host_)
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return;
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if (extension_host_->extension_host_type() ==
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extensions::mojom::ViewType::kExtensionBackgroundPage) {
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DCHECK(is_background_host_);
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// Close notification for background pages arrives via CloseContents.
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// The extension host will be deleted by
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// ProcessManager::CloseBackgroundHost and OnExtensionHostDeleted will be
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// called to notify us.
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extension_host_->Close();
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} else {
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DCHECK(!is_background_host_);
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// We own the extension host and must delete it.
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delete extension_host_;
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extension_host_ = nullptr;
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}
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}
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void CefBrowserPlatformDelegateAlloy::OnExtensionHostDeleted() {
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DCHECK(is_background_host_);
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DCHECK(extension_host_);
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extension_host_ = nullptr;
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}
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