cef/libcef/browser/alloy/dialogs/alloy_constrained_window_vi...

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// Copyright 2022 The Chromium Embedded Framework Authors.
// Portions copyright 2014 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/alloy/dialogs/alloy_constrained_window_views_client.h"
#include "libcef/browser/browser_host_base.h"
#include "base/notreached.h"
#include "components/web_modal/web_contents_modal_dialog_host.h"
namespace {
class AlloyConstrainedWindowViewsClient
: public constrained_window::ConstrainedWindowViewsClient {
public:
AlloyConstrainedWindowViewsClient() = default;
AlloyConstrainedWindowViewsClient(const AlloyConstrainedWindowViewsClient&) =
delete;
AlloyConstrainedWindowViewsClient& operator=(
const AlloyConstrainedWindowViewsClient&) = delete;
private:
// ConstrainedWindowViewsClient methods:
web_modal::ModalDialogHost* GetModalDialogHost(
gfx::NativeWindow parent) override {
if (auto browser = GetPreferredBrowser(parent)) {
return browser->platform_delegate()->GetWebContentsModalDialogHost();
}
DCHECK(false);
return nullptr;
}
gfx::NativeView GetDialogHostView(gfx::NativeWindow parent) override {
if (auto dialog_host = GetModalDialogHost(parent)) {
return dialog_host->GetHostView();
}
return gfx::NativeView();
}
static CefRefPtr<CefBrowserHostBase> GetPreferredBrowser(
gfx::NativeWindow parent) {
CefRefPtr<CefBrowserHostBase> browser;
// 1. Browser associated with the top-level native window (owning_window).
// This should be reliable with windowed browsers. However, |parent| will
// always be nullptr with windowless browsers.
if (parent) {
browser = CefBrowserHostBase::GetBrowserForTopLevelNativeWindow(parent);
if (!browser) {
LOG(WARNING) << "No browser associated with top-level native window";
}
}
// 2. Browser most likely to be focused. This may be somewhat iffy with
// windowless browsers as there is no guarantee that the client has only
// one browser focused at a time.
if (!browser) {
browser = CefBrowserHostBase::GetLikelyFocusedBrowser();
if (!browser) {
LOG(WARNING) << "No likely focused browser";
}
}
return browser;
}
};
} // namespace
std::unique_ptr<constrained_window::ConstrainedWindowViewsClient>
CreateAlloyConstrainedWindowViewsClient() {
return std::make_unique<AlloyConstrainedWindowViewsClient>();
}