summaryrefslogtreecommitdiff
path: root/Userland/Libraries/LibGUI/MessageBox.cpp
blob: b76692407a380887ceafcc569b5cfeb7e314584a (plain)
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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
/*
 * Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
 * Copyright (c) 2022, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <AK/LexicalPath.h>
#include <AK/NumberFormat.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGfx/Font/Font.h>

namespace GUI {

Dialog::ExecResult MessageBox::show(Window* parent_window, StringView text, StringView title, Type type, InputType input_type)
{
    auto box = MessageBox::construct(parent_window, text, title, type, input_type);
    if (parent_window)
        box->set_icon(parent_window->icon());
    return box->exec();
}

Dialog::ExecResult MessageBox::show_error(Window* parent_window, StringView text)
{
    return show(parent_window, text, "Error"sv, GUI::MessageBox::Type::Error, GUI::MessageBox::InputType::OK);
}

Dialog::ExecResult MessageBox::ask_about_unsaved_changes(Window* parent_window, StringView path, Optional<Time> last_unmodified_timestamp)
{
    StringBuilder builder;
    builder.append("Save changes to "sv);
    if (path.is_empty())
        builder.append("untitled document"sv);
    else
        builder.appendff("\"{}\"", LexicalPath::basename(path));
    builder.append(" before closing?"sv);

    if (!path.is_empty() && last_unmodified_timestamp.has_value()) {
        auto age = (Time::now_monotonic() - *last_unmodified_timestamp).to_seconds();
        auto readable_time = human_readable_time(age);
        builder.appendff("\nLast saved {} ago.", readable_time);
    }

    auto box = MessageBox::construct(parent_window, builder.string_view(), "Unsaved changes"sv, Type::Warning, InputType::YesNoCancel);
    if (parent_window)
        box->set_icon(parent_window->icon());

    if (path.is_empty())
        box->m_yes_button->set_text(String::from_utf8("Save As..."sv).release_value_but_fixme_should_propagate_errors());
    else
        box->m_yes_button->set_text(String::from_utf8_short_string("Save"sv));
    box->m_no_button->set_text(String::from_utf8_short_string("Discard"sv));
    box->m_cancel_button->set_text(String::from_utf8_short_string("Cancel"sv));

    return box->exec();
}

void MessageBox::set_text(DeprecatedString text)
{
    m_text = move(text);
    build();
}

MessageBox::MessageBox(Window* parent_window, StringView text, StringView title, Type type, InputType input_type)
    : Dialog(parent_window)
    , m_text(text)
    , m_type(type)
    , m_input_type(input_type)
{
    set_title(title);
    build();
}

RefPtr<Gfx::Bitmap> MessageBox::icon() const
{
    switch (m_type) {
    case Type::Information:
        return Gfx::Bitmap::load_from_file("/res/icons/32x32/msgbox-information.png"sv).release_value_but_fixme_should_propagate_errors();
    case Type::Warning:
        return Gfx::Bitmap::load_from_file("/res/icons/32x32/msgbox-warning.png"sv).release_value_but_fixme_should_propagate_errors();
    case Type::Error:
        return Gfx::Bitmap::load_from_file("/res/icons/32x32/msgbox-error.png"sv).release_value_but_fixme_should_propagate_errors();
    case Type::Question:
        return Gfx::Bitmap::load_from_file("/res/icons/32x32/msgbox-question.png"sv).release_value_but_fixme_should_propagate_errors();
    default:
        return nullptr;
    }
}

bool MessageBox::should_include_ok_button() const
{
    return m_input_type == InputType::OK || m_input_type == InputType::OKCancel;
}

bool MessageBox::should_include_cancel_button() const
{
    return m_input_type == InputType::OKCancel || m_input_type == InputType::YesNoCancel;
}

bool MessageBox::should_include_yes_button() const
{
    return m_input_type == InputType::YesNo || m_input_type == InputType::YesNoCancel;
}

bool MessageBox::should_include_no_button() const
{
    return should_include_yes_button();
}

void MessageBox::build()
{
    auto widget = set_main_widget<Widget>().release_value_but_fixme_should_propagate_errors();

    int text_width = widget->font().width(m_text);
    auto number_of_lines = m_text.split('\n').size();
    int padded_text_height = widget->font().glyph_height() * 1.6;
    int total_text_height = number_of_lines * padded_text_height;
    int icon_width = 0;

    widget->set_layout<VerticalBoxLayout>();
    widget->set_fill_with_background_color(true);

    widget->layout()->set_margins(8);
    widget->layout()->set_spacing(6);

    auto& message_container = widget->add<Widget>();
    message_container.set_layout<HorizontalBoxLayout>();
    message_container.layout()->set_spacing(8);

    if (m_type != Type::None) {
        auto& icon_image = message_container.add<ImageWidget>();
        icon_image.set_bitmap(icon());
        if (icon()) {
            icon_width = icon()->width();
            if (icon_width > 0)
                message_container.layout()->set_margins({ 0, 0, 0, 8 });
        }
    }

    auto& label = message_container.add<Label>(m_text);
    label.set_fixed_height(total_text_height);
    if (m_type != Type::None)
        label.set_text_alignment(Gfx::TextAlignment::CenterLeft);

    auto& button_container = widget->add<Widget>();
    button_container.set_layout<HorizontalBoxLayout>();
    button_container.set_fixed_height(24);
    button_container.layout()->set_spacing(8);

    constexpr int button_width = 80;
    int button_count = 0;

    auto add_button = [&](String label, ExecResult result) -> GUI::Button& {
        auto& button = button_container.add<Button>();
        button.set_fixed_width(button_width);
        button.set_text(move(label));
        button.on_click = [this, result](auto) {
            done(result);
        };
        ++button_count;
        return button;
    };

    button_container.add_spacer().release_value_but_fixme_should_propagate_errors();
    if (should_include_ok_button())
        m_ok_button = add_button(String::from_utf8_short_string("OK"sv), ExecResult::OK);
    if (should_include_yes_button())
        m_yes_button = add_button(String::from_utf8_short_string("Yes"sv), ExecResult::Yes);
    if (should_include_no_button())
        m_no_button = add_button(String::from_utf8_short_string("No"sv), ExecResult::No);
    if (should_include_cancel_button())
        m_cancel_button = add_button(String::from_utf8_short_string("Cancel"sv), ExecResult::Cancel);
    button_container.add_spacer().release_value_but_fixme_should_propagate_errors();

    int width = (button_count * button_width) + ((button_count - 1) * button_container.layout()->spacing()) + 32;
    width = max(width, text_width + icon_width + 56);

    // FIXME: Use shrink from new layout system
    set_rect(x(), y(), width, 80 + label.text_calculated_preferred_height());
    set_resizable(false);
}

}