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- // Copyright 2016 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.
- #ifndef COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
- #define COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
- #include <set>
- #include "base/memory/raw_ptr.h"
- #include "components/web_modal/modal_dialog_host.h"
- #include "components/web_modal/single_web_contents_dialog_manager.h"
- #include "ui/gfx/native_widget_types.h"
- #include "ui/views/widget/widget_observer.h"
- namespace views {
- class Widget;
- }
- namespace constrained_window {
- // Class for parenting a tab-modal views dialog off of a views browser.
- class NativeWebContentsModalDialogManagerViews
- : public web_modal::SingleWebContentsDialogManager,
- public web_modal::ModalDialogHostObserver,
- public views::WidgetObserver {
- public:
- NativeWebContentsModalDialogManagerViews(
- gfx::NativeWindow dialog,
- web_modal::SingleWebContentsDialogManagerDelegate* native_delegate);
- NativeWebContentsModalDialogManagerViews(
- const NativeWebContentsModalDialogManagerViews&) = delete;
- NativeWebContentsModalDialogManagerViews& operator=(
- const NativeWebContentsModalDialogManagerViews&) = delete;
- ~NativeWebContentsModalDialogManagerViews() override;
- // Sets up this object to manage the |dialog_|. Registers for closing events
- // in order to notify the delegate.
- void ManageDialog();
- // web_modal::SingleWebContentsDialogManager:
- void Show() override;
- void Hide() override;
- void Close() override;
- void Focus() override;
- void Pulse() override;
- // web_modal::ModalDialogHostObserver:
- void OnPositionRequiresUpdate() override;
- void OnHostDestroying() override;
- // views::WidgetObserver:
- // NOTE(wittman): OnWidgetClosing is overriden to ensure that, when the widget
- // is explicitly closed, the destruction occurs within the same call
- // stack. This avoids event races that lead to non-deterministic destruction
- // ordering in e.g. the print preview dialog. OnWidgetDestroying is overridden
- // because OnWidgetClosing is *only* invoked on explicit close, not when the
- // widget is implicitly destroyed due to its parent being closed. This
- // situation occurs with app windows. WidgetClosing removes the observer, so
- // only one of these two functions is ever invoked for a given widget.
- void OnWidgetClosing(views::Widget* widget) override;
- void OnWidgetDestroying(views::Widget* widget) override;
- void HostChanged(web_modal::WebContentsModalDialogHost* new_host) override;
- gfx::NativeWindow dialog() override;
- protected:
- web_modal::SingleWebContentsDialogManagerDelegate* native_delegate() {
- return native_delegate_;
- }
- static views::Widget* GetWidget(gfx::NativeWindow dialog);
- private:
- void WidgetClosing(views::Widget* widget);
- raw_ptr<web_modal::SingleWebContentsDialogManagerDelegate> native_delegate_;
- gfx::NativeWindow dialog_;
- raw_ptr<web_modal::WebContentsModalDialogHost> host_ = nullptr;
- bool host_destroying_ = false;
- std::set<views::Widget*> observed_widgets_;
- std::set<views::Widget*> shown_widgets_;
- };
- } // namespace constrained_window
- #endif // COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
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