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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 15:07:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 15:07:22 +0000 |
commit | f9d480cfe50ca1d7a0f0b5a2b8bb9932962bfbe7 (patch) | |
tree | ce9e8db2d4e8799780fa72ae8f1953039373e2ee /js/ui/pointerA11yTimeout.js | |
parent | Initial commit. (diff) | |
download | gnome-shell-f9d480cfe50ca1d7a0f0b5a2b8bb9932962bfbe7.tar.xz gnome-shell-f9d480cfe50ca1d7a0f0b5a2b8bb9932962bfbe7.zip |
Adding upstream version 3.38.6.upstream/3.38.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/ui/pointerA11yTimeout.js')
-rw-r--r-- | js/ui/pointerA11yTimeout.js | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/js/ui/pointerA11yTimeout.js b/js/ui/pointerA11yTimeout.js new file mode 100644 index 0000000..263cc3e --- /dev/null +++ b/js/ui/pointerA11yTimeout.js @@ -0,0 +1,134 @@ +/* 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); + }); + } +}; |