Files
cef/libcef/browser/extensions/browser_extensions_util.cc
Marshall Greenblatt dca0435d2f chrome: Add support for Alloy style browsers and windows (see #3681)
Split the Alloy runtime into bootstrap and style components. Support
creation of Alloy style browsers and windows with the Chrome runtime.
Chrome runtime (`--enable-chrome-runtime`) + Alloy style
(`--use-alloy-style`) supports Views (`--use-views`), native parent
(`--use-native`) and windowless rendering
(`--off-screen-rendering-enabled`).

Print preview is supported in all cases except with windowless rendering
on all platforms and native parent on MacOS. It is disabled by default
with Alloy style for legacy compatibility. Where supported it can be
enabled or disabled globally using `--[enable|disable]-print-preview` or
configured on a per-RequestContext basis using the
`printing.print_preview_disabled` preference. It also behaves as
expected when triggered via the PDF viewer print button.

Chrome runtime + Alloy style behavior differs from Alloy runtime in the
following significant ways:

- Supports Chrome error pages by default.
- DevTools popups are Chrome style only (cannot be windowless).
- The Alloy extension API will not supported.

Chrome runtime + Alloy style passes all expected Alloy ceftests except
the following:

- `DisplayTest.AutoResize` (Alloy extension API not supported)
- `DownloadTest.*` (Download API not yet supported)
- `ExtensionTest.*` (Alloy extension API not supported)

This change also adds Chrome runtime support for
CefContextMenuHandler::RunContextMenu (see #3293).

This change also explicitly blocks (and doesn't retry) FrameAttached
requests from PDF viewer and print preview excluded frames (see #3664).

Known issues specific to Chrome runtime + Alloy style:
- DevTools popup with windowless rendering doesn't load successfully.
  Use windowed rendering or remote debugging as a workaround.
- Chrome style Window with Alloy style BrowserView (`--use-alloy-style
  --use-chrome-style-window`) does not show Chrome theme changes.

To test:
- Run `ceftests --enable-chrome-runtime --use-alloy-style
       [--use-chrome-style-window] [--use-views|--use-native]
       --gtest_filter=...`
- Run `cefclient --enable-chrome-runtime --use-alloy-style
       [--use-chrome-style-window]
       [--use-views|--use-native|--off-screen-rendering-enabled]`
- Run `cefsimple --enable-chrome-runtime --use-alloy-style [--use-views]`
2024-04-22 14:57:37 -04:00

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// Copyright (c) 2015 The Chromium Embedded Framework 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/browser_extensions_util.h"
#include "libcef/browser/alloy/alloy_browser_host_impl.h"
#include "libcef/browser/browser_context.h"
#include "libcef/browser/browser_info_manager.h"
#include "libcef/browser/thread_util.h"
#include "libcef/common/extensions/extensions_util.h"
#include "libcef/features/runtime_checks.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/printing/print_preview_dialog_controller.h"
#include "content/browser/browser_plugin/browser_plugin_guest.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_plugin_guest_manager.h"
#include "extensions/browser/extension_registry.h"
namespace extensions {
namespace {
content::WebContents* GetOwnerForBrowserPluginGuest(
const content::WebContents* guest) {
auto* guest_impl = static_cast<const content::WebContentsImpl*>(guest);
content::BrowserPluginGuest* plugin_guest =
guest_impl->GetBrowserPluginGuest();
if (plugin_guest) {
return plugin_guest->owner_web_contents();
}
return nullptr;
}
content::WebContents* GetInitiatorForPrintPreviewDialog(
const content::WebContents* guest) {
auto print_preview_controller =
g_browser_process->print_preview_dialog_controller();
return print_preview_controller->GetInitiator(
const_cast<content::WebContents*>(guest));
}
} // namespace
content::WebContents* GetOwnerForGuestContents(
const content::WebContents* guest) {
// Maybe it's a guest view. This occurs while loading the PDF viewer.
if (auto* owner = GetOwnerForBrowserPluginGuest(guest)) {
return owner;
}
// Maybe it's a print preview dialog. This occurs while loading the print
// preview dialog.
if (auto* initiator = GetInitiatorForPrintPreviewDialog(guest)) {
// Maybe the dialog is parented to a guest view. This occurs while loading
// the print preview dialog from inside the PDF viewer.
if (auto* owner = GetOwnerForBrowserPluginGuest(initiator)) {
return owner;
}
return initiator;
}
return nullptr;
}
bool IsBrowserPluginGuest(const content::WebContents* web_contents) {
return !!GetOwnerForBrowserPluginGuest(web_contents);
}
bool IsPrintPreviewDialog(const content::WebContents* web_contents) {
return !!GetInitiatorForPrintPreviewDialog(web_contents);
}
CefRefPtr<AlloyBrowserHostImpl> GetBrowserForTabId(
int tab_id,
content::BrowserContext* browser_context) {
REQUIRE_ALLOY_RUNTIME();
CEF_REQUIRE_UIT();
DCHECK(browser_context);
if (tab_id < 0 || !browser_context) {
return nullptr;
}
auto cef_browser_context =
CefBrowserContext::FromBrowserContext(browser_context);
for (const auto& browser_info :
CefBrowserInfoManager::GetInstance()->GetBrowserInfoList()) {
auto current_browser =
AlloyBrowserHostImpl::FromBaseChecked(browser_info->browser());
if (current_browser && current_browser->GetIdentifier() == tab_id) {
// Make sure we're operating in the same CefBrowserContext.
if (CefBrowserContext::FromBrowserContext(
current_browser->GetBrowserContext()) == cef_browser_context) {
return current_browser;
} else {
LOG(WARNING) << "Browser with tabId " << tab_id
<< " cannot be accessed because is uses a different "
"CefRequestContext";
break;
}
}
}
return nullptr;
}
const Extension* GetExtensionForUrl(content::BrowserContext* browser_context,
const GURL& url) {
ExtensionRegistry* registry = ExtensionRegistry::Get(browser_context);
if (!registry) {
return nullptr;
}
std::string extension_id = url.host();
return registry->enabled_extensions().GetByID(extension_id);
}
} // namespace extensions