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/* exported PointerA11yTimeout */
const { Clutter, GObject, Meta, St } = imports.gi;
const Main = imports.ui.main;
const Cairo = imports.cairo;
const SUCCESS_ZOOM_OUT_DURATION = 150;
var PieTimer = GObject.registerClass({
Properties: {
'angle': GObject.ParamSpec.double(
'angle', 'angle', 'angle',
GObject.ParamFlags.READWRITE,
0, 2 * Math.PI, 0),
},
}, class PieTimer extends St.DrawingArea {
_init() {
this._angle = 0;
super._init({
style_class: 'pie-timer',
opacity: 0,
visible: false,
can_focus: false,
reactive: false,
});
this.set_pivot_point(0.5, 0.5);
}
get angle() {
return this._angle;
}
set angle(angle) {
if (this._angle == angle)
return;
this._angle = angle;
this.notify('angle');
this.queue_repaint();
}
vfunc_repaint() {
let node = this.get_theme_node();
let backgroundColor = node.get_color('-pie-background-color');
let borderColor = node.get_color('-pie-border-color');
let borderWidth = node.get_length('-pie-border-width');
let [width, height] = this.get_surface_size();
let radius = Math.min(width / 2, height / 2);
let startAngle = 3 * Math.PI / 2;
let endAngle = startAngle + this._angle;
let cr = this.get_context();
cr.setLineCap(Cairo.LineCap.ROUND);
cr.setLineJoin(Cairo.LineJoin.ROUND);
cr.translate(width / 2, height / 2);
if (this._angle < 2 * Math.PI)
cr.moveTo(0, 0);
cr.arc(0, 0, radius - borderWidth, startAngle, endAngle);
if (this._angle < 2 * Math.PI)
cr.lineTo(0, 0);
cr.closePath();
cr.setLineWidth(0);
Clutter.cairo_set_source_color(cr, backgroundColor);
cr.fillPreserve();
cr.setLineWidth(borderWidth);
Clutter.cairo_set_source_color(cr, borderColor);
cr.stroke();
cr.$dispose();
}
start(x, y, duration) {
this.x = x - this.width / 2;
this.y = y - this.height / 2;
this.show();
this.ease({
opacity: 255,
duration: duration / 4,
mode: Clutter.AnimationMode.EASE_IN_QUAD,
});
this.ease_property('angle', 2 * Math.PI, {
duration,
mode: Clutter.AnimationMode.LINEAR,
onComplete: this._onTransitionComplete.bind(this),
});
}
_onTransitionComplete() {
this.ease({
scale_x: 2,
scale_y: 2,
opacity: 0,
duration: SUCCESS_ZOOM_OUT_DURATION,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
onStopped: () => this.destroy(),
});
}
});
var PointerA11yTimeout = class PointerA11yTimeout {
constructor() {
let seat = Clutter.get_default_backend().get_default_seat();
seat.connect('ptr-a11y-timeout-started', (o, device, type, timeout) => {
let [x, y] = global.get_pointer();
this._pieTimer = new PieTimer();
Main.uiGroup.add_actor(this._pieTimer);
Main.uiGroup.set_child_above_sibling(this._pieTimer, null);
this._pieTimer.start(x, y, timeout);
if (type == Clutter.PointerA11yTimeoutType.GESTURE)
global.display.set_cursor(Meta.Cursor.CROSSHAIR);
});
seat.connect('ptr-a11y-timeout-stopped', (o, device, type, clicked) => {
if (!clicked)
this._pieTimer.destroy();
if (type == Clutter.PointerA11yTimeoutType.GESTURE)
global.display.set_cursor(Meta.Cursor.DEFAULT);
});
}
};
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