nixos-configs/config/ags/js/misc/drag.js

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const { Box, EventBox } = ags.Widget;
const { Gtk, Gdk } = imports.gi;
const display = Gdk.Display.get_default();
export const Draggable = ({
maxOffset = 150,
startMargin = 0,
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endMargin = 300,
command = () => {},
onHover = w => {},
onHoverLost = w => {},
child = '',
children = [],
properties = [[]],
...params
}) => {
let w = EventBox({
...params,
properties: [
['dragging', false],
...properties,
],
onHover: box => {
box.window.set_cursor(Gdk.Cursor.new_from_name(display, 'grab'));
onHover(box);
},
onHoverLost: box => {
box.window.set_cursor(null);
onHoverLost(box);
},
});
let gesture = Gtk.GestureDrag.new(w);
let leftAnim1 = `transition: margin 0.5s ease, opacity 0.5s ease;
margin-left: -${Number(maxOffset + endMargin)}px;
margin-right: ${Number(maxOffset + endMargin)}px;
opacity: 0;`;
let leftAnim2 = `transition: margin 0.5s ease, opacity 0.5s ease;
margin-left: -${Number(maxOffset + endMargin)}px;
margin-right: ${Number(maxOffset + endMargin)}px;
margin-bottom: -70px; margin-top: -70px; opacity: 0;`;
let rightAnim1 = `transition: margin 0.5s ease, opacity 0.5s ease;
margin-left: ${Number(maxOffset + endMargin)}px;
margin-right: -${Number(maxOffset + endMargin)}px;
opacity: 0;`;
let rightAnim2 = `transition: margin 0.5s ease, opacity 0.5s ease;
margin-left: ${Number(maxOffset + endMargin)}px;
margin-right: -${Number(maxOffset + endMargin)}px;
margin-bottom: -70px; margin-top: -70px; opacity: 0;`;
w.child = Box({
properties: [
['leftAnim1', leftAnim1],
['leftAnim2', leftAnim2],
['rightAnim1', rightAnim1],
['rightAnim2', rightAnim2],
['ready', false]
],
children: [
...children,
child,
],
style: leftAnim2,
connections: [
[gesture, box => {
var offset = gesture.get_offset()[1];
if (offset >= 0) {
box.setStyle('margin-left: ' + Number(offset + startMargin) + 'px; ' +
'margin-right: -' + Number(offset + startMargin) + 'px;');
}
else {
offset = Math.abs(offset);
box.setStyle('margin-right: ' + Number(offset + startMargin) + 'px; ' +
'margin-left: -' + Number(offset + startMargin) + 'px;');
}
box.get_parent()._dragging = Math.abs(offset) > 10;
if (w.window)
w.window.set_cursor(Gdk.Cursor.new_from_name(display, 'grabbing'));
}, 'drag-update'],
[gesture, box => {
if (!box._ready) {
box.setStyle(`transition: margin 0.5s ease, opacity 0.5s ease;
margin-left: -${Number(maxOffset + endMargin)}px;
margin-right: ${Number(maxOffset + endMargin)}px;
margin-bottom: 0px; margin-top: 0px; opacity: 0;`);
setTimeout(() => {
box.setStyle('transition: margin 0.5s ease, opacity 0.5s ease; ' +
'margin-left: ' + startMargin + 'px; ' +
'margin-right: ' + startMargin + 'px; ' +
'margin-bottom: unset; margin-top: unset; opacity: 1;');
}, 500);
setTimeout(() => box._ready = true, 1000);
return;
}
const offset = gesture.get_offset()[1];
if (Math.abs(offset) > maxOffset) {
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if (offset > 0) {
box.setStyle(rightAnim1);
setTimeout(() => box.setStyle(rightAnim2), 500);
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}
else {
box.setStyle(leftAnim1);
setTimeout(() => box.setStyle(leftAnim2), 500);
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}
setTimeout(() => {
command();
box.destroy();
}, 1000);
}
else {
box.setStyle('transition: margin 0.5s ease, opacity 0.5s ease; ' +
'margin-left: ' + startMargin + 'px; ' +
'margin-right: ' + startMargin + 'px; ' +
'margin-bottom: unset; margin-top: unset; opacity: 1;');
if (w.window)
w.window.set_cursor(Gdk.Cursor.new_from_name(display, 'grab'));
box.get_parent()._dragging = false;
}
}, 'drag-end'],
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],
});
return w;
};