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
use adw::{prelude::*, subclass::prelude::*};
use futures_channel::oneshot;
use gtk::{gdk, gio, glib, CompositeTemplate};
use tracing::error;

use crate::components::MediaContentViewer;

mod imp {
    use std::cell::RefCell;

    use super::*;

    #[derive(Debug, Default, CompositeTemplate)]
    #[template(
        resource = "/org/gnome/Fractal/ui/session/view/content/room_history/message_toolbar/attachment_dialog.ui"
    )]
    pub struct AttachmentDialog {
        #[template_child]
        pub cancel_button: TemplateChild<gtk::Button>,
        #[template_child]
        pub send_button: TemplateChild<gtk::Button>,
        #[template_child]
        pub media: TemplateChild<MediaContentViewer>,
        pub sender: RefCell<Option<oneshot::Sender<gtk::ResponseType>>>,
    }

    #[glib::object_subclass]
    impl ObjectSubclass for AttachmentDialog {
        const NAME: &'static str = "AttachmentDialog";
        type Type = super::AttachmentDialog;
        type ParentType = adw::Dialog;

        fn class_init(klass: &mut Self::Class) {
            Self::bind_template(klass);
            Self::Type::bind_template_callbacks(klass);
        }

        fn instance_init(obj: &glib::subclass::InitializingObject<Self>) {
            obj.init_template();
        }
    }

    impl ObjectImpl for AttachmentDialog {
        fn constructed(&self) {
            self.parent_constructed();

            self.set_loading(true);
        }
    }

    impl WidgetImpl for AttachmentDialog {
        fn grab_focus(&self) -> bool {
            let loading = !self.send_button.is_sensitive();

            if loading {
                self.cancel_button.grab_focus()
            } else {
                self.send_button.grab_focus()
            }
        }
    }

    impl AdwDialogImpl for AttachmentDialog {
        fn closed(&self) {
            self.send_response(gtk::ResponseType::Cancel);
        }
    }

    impl AttachmentDialog {
        /// Set whether this dialog is loading.
        pub(super) fn set_loading(&self, loading: bool) {
            self.send_button.set_sensitive(!loading);
            self.grab_focus();
        }

        /// Sent the given response.
        pub(super) fn send_response(&self, response: gtk::ResponseType) {
            if let Some(sender) = self.sender.take() {
                if sender.send(response).is_err() {
                    error!("Could not send attachment dialog response {response:?}");
                }
            }
        }
    }
}

glib::wrapper! {
    /// A dialog to preview an attachment before sending it.
    pub struct AttachmentDialog(ObjectSubclass<imp::AttachmentDialog>)
        @extends gtk::Widget, adw::Dialog;
}

#[gtk::template_callbacks]
impl AttachmentDialog {
    /// Create an attachment dialog with the given title.
    ///
    /// Its initial state is loading.
    pub fn new(title: &str) -> Self {
        glib::Object::builder().property("title", title).build()
    }

    /// Set the image to preview.
    pub fn set_image(&self, image: &gdk::Texture) {
        let imp = self.imp();
        imp.media.view_image(image);
        imp.set_loading(false);
    }

    /// Set the file to preview.
    pub fn set_file(&self, file: &gio::File) {
        let imp = self.imp();
        imp.media.view_file(file.clone());
        imp.set_loading(false);
    }

    /// Create an attachment dialog to preview and send a location.
    pub fn set_location(&self, geo_uri: &geo_uri::GeoUri) {
        let imp = self.imp();
        imp.media.view_location(geo_uri);
        imp.set_loading(false);
    }

    /// Emit the signal that the user wants to send the attachment.
    #[template_callback]
    fn send(&self) {
        self.imp().send_response(gtk::ResponseType::Ok);
        self.close();
    }

    /// Present the dialog and wait for the user to select a response.
    ///
    /// The response is [`gtk::ResponseType::Ok`] if the user clicked on send,
    /// otherwise it is [`gtk::ResponseType::Cancel`].
    pub async fn response_future(&self, parent: &impl IsA<gtk::Widget>) -> gtk::ResponseType {
        let (sender, receiver) = oneshot::channel();
        self.imp().sender.replace(Some(sender));

        self.present(parent);

        receiver.await.unwrap_or(gtk::ResponseType::Cancel)
    }
}