1 files changed, 98 insertions, 0 deletions
diff --git a/libcef/browser/alloy/dialogs/alloy_web_contents_dialog_helper.cc b/libcef/browser/alloy/dialogs/alloy_web_contents_dialog_helper.cc
new file mode 100644
index 00000000..402ce172
--- /dev/null
+++ b/libcef/browser/alloy/dialogs/alloy_web_contents_dialog_helper.cc
@@ -0,0 +1,98 @@
+// Copyright (c) 2019 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/alloy/dialogs/alloy_web_contents_dialog_helper.h"
+
+#include "libcef/browser/browser_platform_delegate.h"
+
+#include "base/notreached.h"
+#include "chrome/browser/platform_util.h"
+#include "components/web_modal/web_contents_modal_dialog_manager.h"
+#include "ui/views/widget/widget.h"
+
+AlloyWebContentsDialogHelper::AlloyWebContentsDialogHelper(
+    content::WebContents* web_contents,
+    CefBrowserPlatformDelegate* browser_delegate)
+    : browser_delegate_(browser_delegate), weak_factory_(this) {
+  web_modal::WebContentsModalDialogManager::CreateForWebContents(web_contents);
+  web_modal::WebContentsModalDialogManager::FromWebContents(web_contents)
+      ->SetDelegate(this);
+}
+
+base::RepeatingClosure
+AlloyWebContentsDialogHelper::GetBoundsChangedCallback() {
+  return base::BindRepeating(&AlloyWebContentsDialogHelper::OnBoundsChanged,
+                             weak_factory_.GetWeakPtr());
+}
+
+bool AlloyWebContentsDialogHelper::IsWebContentsVisible(
+    content::WebContents* web_contents) {
+  if (browser_delegate_->IsWindowless()) {
+    return !browser_delegate_->IsHidden();
+  } else if (auto native_view = web_contents->GetNativeView()) {
+    return platform_util::IsVisible(native_view);
+  }
+  NOTREACHED();
+  return false;
+}
+
+web_modal::WebContentsModalDialogHost*
+AlloyWebContentsDialogHelper::GetWebContentsModalDialogHost() {
+  return this;
+}
+
+gfx::NativeView AlloyWebContentsDialogHelper::GetHostView() const {
+  // Windowless rendering uses GetHostWidget() instead.
+  if (browser_delegate_->IsWindowless()) {
+    return gfx::NativeView();
+  }
+
+  if (auto widget = browser_delegate_->GetWindowWidget()) {
+    return widget->GetNativeView();
+  }
+  NOTREACHED();
+  return gfx::NativeView();
+}
+
+gfx::AcceleratedWidget AlloyWebContentsDialogHelper::GetHostWidget() const {
+#if defined(USE_AURA)
+  // Windowed rendering uses GetHostView() instead.
+  if (!browser_delegate_->IsWindowless()) {
+    return gfx::kNullAcceleratedWidget;
+  }
+
+  if (auto parent_widget = browser_delegate_->GetHostWindowHandle()) {
+    return parent_widget;
+  }
+#endif  // defined(USE_AURA)
+  NOTREACHED();
+  return gfx::kNullAcceleratedWidget;
+}
+
+gfx::Point AlloyWebContentsDialogHelper::GetDialogPosition(
+    const gfx::Size& size) {
+  return browser_delegate_->GetDialogPosition(size);
+}
+
+gfx::Size AlloyWebContentsDialogHelper::GetMaximumDialogSize() {
+  return browser_delegate_->GetMaximumDialogSize();
+}
+
+void AlloyWebContentsDialogHelper::AddObserver(
+    web_modal::ModalDialogHostObserver* observer) {
+  if (observer && !observer_list_.HasObserver(observer)) {
+    observer_list_.AddObserver(observer);
+  }
+}
+
+void AlloyWebContentsDialogHelper::RemoveObserver(
+    web_modal::ModalDialogHostObserver* observer) {
+  observer_list_.RemoveObserver(observer);
+}
+
+void AlloyWebContentsDialogHelper::OnBoundsChanged() {
+  for (auto& observer : observer_list_) {
+    observer.OnPositionRequiresUpdate();
+  }
+}