167 lines
5.3 KiB
TypeScript
167 lines
5.3 KiB
TypeScript
const { timeout } = Utils;
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const { Box, EventBox, Overlay } = Widget;
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const { Gtk } = imports.gi;
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const MAX_OFFSET = 200;
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const OFFSCREEN = 500;
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const ANIM_DURATION = 500;
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const TRANSITION = `transition: margin ${ANIM_DURATION}ms ease,
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opacity ${ANIM_DURATION}ms ease;`;
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// Types
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import {
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CenterBoxGeneric,
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Gesture,
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OverlayGeneric,
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PlayerBox,
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} from 'global-types';
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export default ({
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setup = () => { /**/ },
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...props
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}: Gesture) => {
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const widget = EventBox();
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const gesture = Gtk.GestureDrag.new(widget);
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// Have empty PlayerBox to define the size of the widget
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const emptyPlayer = Box({
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class_name: 'player',
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attribute: { empty: true },
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});
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const content = Overlay({
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...props,
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attribute: {
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players: new Map(),
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setup: false,
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dragging: false,
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includesWidget: (playerW: OverlayGeneric) => {
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return content.overlays.find((w) => w === playerW);
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},
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showTopOnly: () => content.overlays.forEach((over) => {
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over.visible = over === content.overlays.at(-1);
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}),
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moveToTop: (player: CenterBoxGeneric) => {
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player.visible = true;
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content.reorder_overlay(player, -1);
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timeout(ANIM_DURATION, () => {
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content.attribute.showTopOnly();
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});
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},
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},
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child: emptyPlayer,
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setup: (self) => {
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setup(self);
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self
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.hook(gesture, (_, realGesture) => {
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if (realGesture) {
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self.overlays.forEach((over) => {
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over.visible = true;
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});
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}
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else {
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self.attribute.showTopOnly();
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}
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// Don't allow gesture when only one player
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if (self.overlays.length <= 1) {
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return;
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}
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self.attribute.dragging = true;
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let offset = gesture.get_offset()[1];
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const playerBox = self.overlays.at(-1) as PlayerBox;
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if (!offset) {
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return;
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}
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// Slide right
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if (offset >= 0) {
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playerBox.setCss(`
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margin-left: ${offset}px;
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margin-right: -${offset}px;
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${playerBox.attribute.bgStyle}
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`);
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}
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// Slide left
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else {
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offset = Math.abs(offset);
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playerBox.setCss(`
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margin-left: -${offset}px;
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margin-right: ${offset}px;
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${playerBox.attribute.bgStyle}
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`);
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}
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}, 'drag-update')
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.hook(gesture, () => {
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// Don't allow gesture when only one player
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if (self.overlays.length <= 1) {
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return;
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}
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self.attribute.dragging = false;
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const offset = gesture.get_offset()[1];
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const playerBox = self.overlays.at(-1) as PlayerBox;
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// If crosses threshold after letting go, slide away
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if (offset && Math.abs(offset) > MAX_OFFSET) {
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// Disable inputs during animation
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widget.sensitive = false;
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// Slide away right
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if (offset >= 0) {
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playerBox.setCss(`
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${TRANSITION}
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margin-left: ${OFFSCREEN}px;
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margin-right: -${OFFSCREEN}px;
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opacity: 0.7; ${playerBox.attribute.bgStyle}
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`);
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}
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// Slide away left
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else {
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playerBox.setCss(`
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${TRANSITION}
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margin-left: -${OFFSCREEN}px;
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margin-right: ${OFFSCREEN}px;
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opacity: 0.7; ${playerBox.attribute.bgStyle}
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`);
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}
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timeout(ANIM_DURATION, () => {
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// Put the player in the back after anim
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self.reorder_overlay(playerBox, 0);
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// Recenter player
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playerBox.setCss(playerBox.attribute.bgStyle);
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widget.sensitive = true;
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self.attribute.showTopOnly();
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});
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}
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else {
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// Recenter with transition for animation
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playerBox.setCss(`${TRANSITION}
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${playerBox.attribute.bgStyle}`);
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}
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}, 'drag-end');
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},
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});
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widget.add(content);
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return widget;
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};
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