gala/plugins/notify/Notification.vala
2014-07-21 15:58:08 -07:00

397 lines
11 KiB
Vala

//
// Copyright (C) 2014 Tom Beckmann
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using Clutter;
using Meta;
namespace Gala.Plugins.Notify
{
public abstract class Notification : Actor
{
public const int WIDTH = 300;
public const int ICON_SIZE = 48;
public const int MARGIN = 12;
public const int SPACING = 6;
public const int PADDING = 4;
public signal void closed (uint32 id, uint32 reason);
public uint32 id { get; construct; }
public Gdk.Pixbuf? icon { get; construct set; }
public NotificationUrgency urgency { get; construct; }
public int32 expire_timeout { get; construct set; }
public uint64 relevancy_time { get; private set; }
public bool being_destroyed { get; private set; default = false; }
protected bool icon_only { get; protected set; default = false; }
protected GtkClutter.Texture icon_texture { get; private set; }
protected Actor icon_container { get; private set; }
/**
* Whether we're currently sliding content for an update animation
*/
protected bool transitioning { get; private set; default = false; }
GtkClutter.Texture close_button;
Granite.Drawing.BufferSurface? buffer = null;
uint remove_timeout = 0;
// temporary things needed for the slide transition
protected float animation_slide_height { get; private set; }
GtkClutter.Texture old_texture;
float _animation_slide_y_offset = 0.0f;
public float animation_slide_y_offset {
get {
return _animation_slide_y_offset;
}
set {
_animation_slide_y_offset = value;
icon_texture.y = -animation_slide_height + _animation_slide_y_offset;
old_texture.y = _animation_slide_y_offset;
update_slide_animation ();
}
}
public Notification (uint32 id, Gdk.Pixbuf? icon, NotificationUrgency urgency,
int32 expire_timeout)
{
Object (
id: id,
icon: icon,
urgency: urgency,
expire_timeout: expire_timeout
);
}
construct
{
relevancy_time = new DateTime.now_local ().to_unix ();
width = WIDTH + MARGIN * 2;
reactive = true;
set_pivot_point (0.5f, 0.5f);
icon_texture = new GtkClutter.Texture ();
icon_texture.set_pivot_point (0.5f, 0.5f);
icon_container = new Actor ();
icon_container.add_child (icon_texture);
close_button = Utils.create_close_button ();
close_button.opacity = 0;
close_button.reactive = true;
close_button.set_easing_duration (300);
var close_click = new ClickAction ();
close_click.clicked.connect (() => {
closed (id, NotificationClosedReason.DISMISSED);
close ();
});
close_button.add_action (close_click);
add_child (icon_container);
add_child (close_button);
var canvas = new Canvas ();
canvas.draw.connect (draw);
content = canvas;
set_values ();
var click = new ClickAction ();
click.clicked.connect (() => {
activate ();
});
add_action (click);
open ();
}
public void open () {
var entry = new TransitionGroup ();
entry.remove_on_complete = true;
entry.duration = 400;
var opacity_transition = new PropertyTransition ("opacity");
opacity_transition.set_from_value (0);
opacity_transition.set_to_value (255);
var flip_transition = new KeyframeTransition ("rotation-angle-x");
flip_transition.set_from_value (90.0);
flip_transition.set_to_value (0.0);
flip_transition.set_key_frames ({ 0.6 });
flip_transition.set_values ({ -10.0 });
entry.add_transition (opacity_transition);
entry.add_transition (flip_transition);
add_transition ("entry", entry);
switch (urgency) {
case NotificationUrgency.LOW:
case NotificationUrgency.NORMAL:
return;
case NotificationUrgency.CRITICAL:
var icon_entry = new TransitionGroup ();
icon_entry.duration = 1000;
icon_entry.remove_on_complete = true;
icon_entry.progress_mode = AnimationMode.EASE_IN_OUT_CUBIC;
double[] keyframes = { 0.2, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0 };
GLib.Value[] scale = { 0.0, 1.2, 1.6, 1.6, 1.6, 1.6, 1.2, 1.0 };
var rotate_transition = new KeyframeTransition ("rotation-angle-z");
rotate_transition.set_from_value (30.0);
rotate_transition.set_to_value (0.0);
rotate_transition.set_key_frames (keyframes);
rotate_transition.set_values ({ 30.0, -30.0, 30.0, -20.0, 10.0, -5.0, 2.0, 0.0 });
var scale_x_transition = new KeyframeTransition ("scale-x");
scale_x_transition.set_from_value (0.0);
scale_x_transition.set_to_value (1.0);
scale_x_transition.set_key_frames (keyframes);
scale_x_transition.set_values (scale);
var scale_y_transition = new KeyframeTransition ("scale-y");
scale_y_transition.set_from_value (0.0);
scale_y_transition.set_to_value (1.0);
scale_y_transition.set_key_frames (keyframes);
scale_y_transition.set_values (scale);
icon_entry.add_transition (rotate_transition);
icon_entry.add_transition (scale_x_transition);
icon_entry.add_transition (scale_y_transition);
icon_texture.add_transition ("entry", icon_entry);
return;
}
}
public void close ()
{
set_easing_duration (200);
set_easing_mode (AnimationMode.EASE_IN_QUAD);
opacity = 0;
x = WIDTH + MARGIN * 2;
being_destroyed = true;
var transition = get_transition ("x");
if (transition != null)
transition.completed.connect (() => destroy ());
else
destroy ();
}
protected void update_base (Gdk.Pixbuf? icon, int32 expire_timeout)
{
this.icon = icon;
this.expire_timeout = expire_timeout;
this.relevancy_time = new DateTime.now_local ().to_unix ();
set_values ();
}
void set_values ()
{
if (icon != null) {
try {
icon_texture.set_from_pixbuf (icon);
} catch (Error e) {}
}
set_timeout ();
}
void set_timeout ()
{
// crtitical notifications have to be dismissed manually
if (expire_timeout <= 0 || urgency == NotificationUrgency.CRITICAL)
return;
clear_timeout ();
remove_timeout = Timeout.add (expire_timeout, () => {
closed (id, NotificationClosedReason.EXPIRED);
close ();
remove_timeout = 0;
return false;
});
}
void clear_timeout ()
{
if (remove_timeout != 0) {
Source.remove (remove_timeout);
remove_timeout = 0;
}
}
public override bool enter_event (CrossingEvent event)
{
close_button.opacity = 255;
clear_timeout ();
return true;
}
public override bool leave_event (CrossingEvent event)
{
close_button.opacity = 0;
// TODO consider decreasing the timeout now or calculating the remaining
set_timeout ();
return true;
}
public virtual void activate ()
{
}
public virtual void draw_content (Cairo.Context cr)
{
}
public abstract void update_allocation (out float content_height, AllocationFlags flags);
public override void allocate (ActorBox box, AllocationFlags flags)
{
var icon_alloc = ActorBox ();
icon_alloc.set_origin (icon_only ? (WIDTH - ICON_SIZE) / 2 : MARGIN + PADDING, MARGIN + PADDING);
icon_alloc.set_size (ICON_SIZE, ICON_SIZE);
icon_container.allocate (icon_alloc, flags);
var close_alloc = ActorBox ();
close_alloc.set_origin (MARGIN + PADDING - close_button.width / 2,
MARGIN + PADDING - close_button.height / 2);
close_alloc.set_size (close_button.width, close_button.height);
close_button.allocate (close_alloc, flags);
float content_height;
update_allocation (out content_height, flags);
box.set_size (MARGIN * 2 + WIDTH, (MARGIN + PADDING) * 2 + content_height);
base.allocate (box, flags);
var canvas = (Canvas) content;
var canvas_width = (int) box.get_width ();
var canvas_height = (int) box.get_height ();
if (canvas.width != canvas_width || canvas.height != canvas_height)
canvas.set_size (canvas_width, canvas_height);
}
public override void get_preferred_height (float for_width, out float min_height, out float nat_height)
{
min_height = nat_height = ICON_SIZE + (MARGIN + PADDING) * 2;
}
protected void play_update_transition (float slide_height)
{
Transition transition;
if ((transition = get_transition ("switch")) != null) {
transition.completed ();
remove_transition ("switch");
}
animation_slide_height = slide_height;
old_texture = new GtkClutter.Texture ();
icon_container.add_child (old_texture);
icon_container.set_clip (0, -PADDING, ICON_SIZE, ICON_SIZE + PADDING * 2);
try {
old_texture.set_from_pixbuf (this.icon);
} catch (Error e) {}
transition = new PropertyTransition ("animation-slide-y-offset");
transition.duration = 200;
transition.progress_mode = AnimationMode.EASE_IN_OUT_QUAD;
transition.set_from_value (0.0f);
transition.set_to_value (animation_slide_height);
transition.remove_on_complete = true;
transition.completed.connect (() => {
old_texture.destroy ();
icon_container.remove_clip ();
_animation_slide_y_offset = 0;
transitioning = false;
});
add_transition ("switch", transition);
transitioning = true;
}
protected virtual void update_slide_animation ()
{
}
bool draw (Cairo.Context canvas_cr)
{
var canvas = (Canvas) content;
var x = MARGIN;
var y = MARGIN;
var width = canvas.width - MARGIN * 2;
var height = canvas.height - MARGIN * 2;
if (buffer == null || buffer.width != canvas.width || buffer.height != canvas.height) {
buffer = new Granite.Drawing.BufferSurface (canvas.width, canvas.height);
var cr = buffer.context;
Granite.Drawing.Utilities.cairo_rounded_rectangle (cr, x , y + 3, width, height, 4);
cr.set_source_rgba (0, 0, 0, 0.3);
cr.fill ();
buffer.exponential_blur (6);
Granite.Drawing.Utilities.cairo_rounded_rectangle (cr, x - 0.5 , y - 0.5, width + 1, height + 1, 4);
cr.set_source_rgba (0, 0, 0, 0.3);
cr.set_line_width (1);
cr.stroke ();
Granite.Drawing.Utilities.cairo_rounded_rectangle (cr, x, y, width, height, 4);
cr.set_source_rgb (0.945, 0.945, 0.945);
cr.fill ();
Granite.Drawing.Utilities.cairo_rounded_rectangle (cr, x + 0.5, y + 0.5, width - 1, height - 1, 3);
var gradient = new Cairo.Pattern.linear (0, 0, 0, height - 2);
gradient.add_color_stop_rgba (0, 1, 1, 1, 1.0);
gradient.add_color_stop_rgba (1, 1, 1, 1, 0.6);
cr.set_source (gradient);
cr.set_line_width (1);
cr.stroke ();
}
canvas_cr.set_operator (Cairo.Operator.CLEAR);
canvas_cr.paint ();
canvas_cr.set_operator (Cairo.Operator.OVER);
canvas_cr.set_source_surface (buffer.surface, 0, 0);
canvas_cr.paint ();
draw_content (canvas_cr);
return false;
}
}
}