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
|
using Gee;
using Gdk;
using Gtk;
using Xmpp;
using Dino.Entities;
namespace Dino.Ui {
public class FileTransmissionProgress : Adw.Bin {
public enum State {
UNKNOWN_SOURCE,
DOWNLOAD_NOT_STARTED,
DOWNLOAD_NOT_STARTED_FAILED_BEFORE,
DOWNLOADING,
UPLOADING,
UPLOAD_FAILED
}
public int64 file_size { get; set; }
public int64 transferred_size { get; set; }
public State state { get; set; }
private const int LINE_WIDTH = 4;
private Button button = new Button();
private Adw.TimedAnimation progress_animation;
construct {
add_css_class("circular-osd");
button.add_css_class("circular");
button.margin_start = button.margin_end = button.margin_top = button.margin_bottom = LINE_WIDTH;
this.set_child(button);
this.button.clicked.connect(on_button_clicked);
this.notify["transferred-size"].connect(update_progress);
this.notify["state"].connect(on_state_changed);
on_state_changed();
setup_animation();
}
private void setup_animation() {
progress_animation = new Adw.TimedAnimation(this, 0.0, 0.0, 250, new Adw.CallbackAnimationTarget(queue_draw)) { easing = Adw.Easing.LINEAR };
progress_animation.done.connect(update_progress);
}
private void on_state_changed() {
sensitive = state != UNKNOWN_SOURCE && state != UPLOAD_FAILED;
switch (this.state) {
case UNKNOWN_SOURCE:
case DOWNLOAD_NOT_STARTED:
button.icon_name = "dino-document-save-symbolic";
break;
case DOWNLOADING:
case UPLOADING:
button.icon_name = "dino-small-x-symbolic";
break;
case DOWNLOAD_NOT_STARTED_FAILED_BEFORE:
case UPLOAD_FAILED:
button.icon_name = "dino-dialog-warning-symbolic";
break;
}
}
private void update_progress() {
if (file_size == 0 || progress_animation == null) return;
// For encrypted files, transferred size > file size. For PGP, the whole message is encrypted at once, making a better solution difficult.
double next_value = ((double)transferred_size / (double)file_size).clamp(0, 1);
if (progress_animation != null && progress_animation.value_to != next_value) {
progress_animation.value_from = progress_animation.value;
progress_animation.value_to = next_value;
progress_animation.reset();
progress_animation.play();
}
}
#if GTK_4_14
private static extern Gsk.Path create_progress_arc(Gsk.Path circle, float percentage);
#endif
public override void snapshot(Gtk.Snapshot snapshot) {
base.snapshot(snapshot);
if ((state == State.DOWNLOADING || state == State.UPLOADING) && progress_animation.value > 0.01) {
float radius = float.max(int.min(get_width(), get_height()) / 2, 1);
float line_width = (float) LINE_WIDTH;
snapshot.translate({get_width() / 2, get_height() / 2});
#if GTK_4_14
var fg_color = get_color();
get_style_context().lookup_color("accent_color", out fg_color);
var builder = new Gsk.PathBuilder();
builder.add_circle({0, 0}, radius - line_width / 2);
var circle_path = builder.to_path();
var stroke = new Gsk.Stroke(line_width);
stroke.set_line_cap(Gsk.LineCap.ROUND);
var arc_path = create_progress_arc(circle_path, (float) progress_animation.value);
snapshot.append_stroke(arc_path, stroke, fg_color);
#else
var fg_color = get_style_context().get_color();
get_style_context().lookup_color("accent_color", out fg_color);
var context = snapshot.append_cairo({{-radius, -radius}, {radius*2, radius*2}});
context.set_line_cap(Cairo.LineCap.ROUND);
context.set_line_width(line_width);
context.set_source_rgba(fg_color.red, fg_color.green, fg_color.blue, fg_color.alpha);
context.arc(0, 0, radius - line_width / 2, -0.5 * Math.PI, (progress_animation.value - 0.25) * 2 * Math.PI);
context.stroke();
#endif
}
}
private void on_button_clicked() {
switch (this.state) {
case UNKNOWN_SOURCE:
case UPLOAD_FAILED:
break;
case DOWNLOAD_NOT_STARTED_FAILED_BEFORE:
case DOWNLOAD_NOT_STARTED:
this.activate_action("file.download", null);
break;
case DOWNLOADING:
case UPLOADING:
this.activate_action("file.cancel", null);
break;
}
}
public override void dispose() {
progress_animation = null;
base.dispose();
}
}
}
|
