1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// Copyright 2016 The Chromium Authors
// 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;
bool IsActive() const 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<raw_ptr<views::Widget, SetExperimental>> observed_widgets_;
std::set<raw_ptr<views::Widget, SetExperimental>> shown_widgets_;
};
} // namespace constrained_window
#endif // COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
|
