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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:45:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:45:13 +0000
commit3c99fde45db83b531c41c350ed4d0ac2a3c40c62 (patch)
treead5257daf9e41556ed73875ab56b69162dffdac1 /debian/missing-sources/leaflet.js/map/handler/Map.Drag.js
parentAdding upstream version 1.1.0. (diff)
downloadicingaweb2-module-map-3c99fde45db83b531c41c350ed4d0ac2a3c40c62.tar.xz
icingaweb2-module-map-3c99fde45db83b531c41c350ed4d0ac2a3c40c62.zip
Adding debian version 1.1.0-3.debian/1.1.0-3debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/missing-sources/leaflet.js/map/handler/Map.Drag.js')
-rw-r--r--debian/missing-sources/leaflet.js/map/handler/Map.Drag.js236
1 files changed, 236 insertions, 0 deletions
diff --git a/debian/missing-sources/leaflet.js/map/handler/Map.Drag.js b/debian/missing-sources/leaflet.js/map/handler/Map.Drag.js
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+import {Map} from '../Map';
+import * as Browser from '../../core/Browser';
+import {Handler} from '../../core/Handler';
+import {Draggable} from '../../dom/Draggable';
+import * as Util from '../../core/Util';
+import * as DomUtil from '../../dom/DomUtil';
+import {toLatLngBounds as latLngBounds} from '../../geo/LatLngBounds';
+import {toBounds} from '../../geometry/Bounds';
+
+/*
+ * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
+ */
+
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @option dragging: Boolean = true
+ // Whether the map be draggable with mouse/touch or not.
+ dragging: true,
+
+ // @section Panning Inertia Options
+ // @option inertia: Boolean = *
+ // If enabled, panning of the map will have an inertia effect where
+ // the map builds momentum while dragging and continues moving in
+ // the same direction for some time. Feels especially nice on touch
+ // devices. Enabled by default unless running on old Android devices.
+ inertia: !Browser.android23,
+
+ // @option inertiaDeceleration: Number = 3000
+ // The rate with which the inertial movement slows down, in pixels/secondĀ².
+ inertiaDeceleration: 3400, // px/s^2
+
+ // @option inertiaMaxSpeed: Number = Infinity
+ // Max speed of the inertial movement, in pixels/second.
+ inertiaMaxSpeed: Infinity, // px/s
+
+ // @option easeLinearity: Number = 0.2
+ easeLinearity: 0.2,
+
+ // TODO refactor, move to CRS
+ // @option worldCopyJump: Boolean = false
+ // With this option enabled, the map tracks when you pan to another "copy"
+ // of the world and seamlessly jumps to the original one so that all overlays
+ // like markers and vector layers are still visible.
+ worldCopyJump: false,
+
+ // @option maxBoundsViscosity: Number = 0.0
+ // If `maxBounds` is set, this option will control how solid the bounds
+ // are when dragging the map around. The default value of `0.0` allows the
+ // user to drag outside the bounds at normal speed, higher values will
+ // slow down map dragging outside bounds, and `1.0` makes the bounds fully
+ // solid, preventing the user from dragging outside the bounds.
+ maxBoundsViscosity: 0.0
+});
+
+export var Drag = Handler.extend({
+ addHooks: function () {
+ if (!this._draggable) {
+ var map = this._map;
+
+ this._draggable = new Draggable(map._mapPane, map._container);
+
+ this._draggable.on({
+ dragstart: this._onDragStart,
+ drag: this._onDrag,
+ dragend: this._onDragEnd
+ }, this);
+
+ this._draggable.on('predrag', this._onPreDragLimit, this);
+ if (map.options.worldCopyJump) {
+ this._draggable.on('predrag', this._onPreDragWrap, this);
+ map.on('zoomend', this._onZoomEnd, this);
+
+ map.whenReady(this._onZoomEnd, this);
+ }
+ }
+ DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
+ this._draggable.enable();
+ this._positions = [];
+ this._times = [];
+ },
+
+ removeHooks: function () {
+ DomUtil.removeClass(this._map._container, 'leaflet-grab');
+ DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');
+ this._draggable.disable();
+ },
+
+ moved: function () {
+ return this._draggable && this._draggable._moved;
+ },
+
+ moving: function () {
+ return this._draggable && this._draggable._moving;
+ },
+
+ _onDragStart: function () {
+ var map = this._map;
+
+ map._stop();
+ if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
+ var bounds = latLngBounds(this._map.options.maxBounds);
+
+ this._offsetLimit = toBounds(
+ this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
+ this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
+ .add(this._map.getSize()));
+
+ this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
+ } else {
+ this._offsetLimit = null;
+ }
+
+ map
+ .fire('movestart')
+ .fire('dragstart');
+
+ if (map.options.inertia) {
+ this._positions = [];
+ this._times = [];
+ }
+ },
+
+ _onDrag: function (e) {
+ if (this._map.options.inertia) {
+ var time = this._lastTime = +new Date(),
+ pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;
+
+ this._positions.push(pos);
+ this._times.push(time);
+
+ this._prunePositions(time);
+ }
+
+ this._map
+ .fire('move', e)
+ .fire('drag', e);
+ },
+
+ _prunePositions: function (time) {
+ while (this._positions.length > 1 && time - this._times[0] > 50) {
+ this._positions.shift();
+ this._times.shift();
+ }
+ },
+
+ _onZoomEnd: function () {
+ var pxCenter = this._map.getSize().divideBy(2),
+ pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
+
+ this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
+ this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
+ },
+
+ _viscousLimit: function (value, threshold) {
+ return value - (value - threshold) * this._viscosity;
+ },
+
+ _onPreDragLimit: function () {
+ if (!this._viscosity || !this._offsetLimit) { return; }
+
+ var offset = this._draggable._newPos.subtract(this._draggable._startPos);
+
+ var limit = this._offsetLimit;
+ if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }
+ if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }
+ if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }
+ if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }
+
+ this._draggable._newPos = this._draggable._startPos.add(offset);
+ },
+
+ _onPreDragWrap: function () {
+ // TODO refactor to be able to adjust map pane position after zoom
+ var worldWidth = this._worldWidth,
+ halfWidth = Math.round(worldWidth / 2),
+ dx = this._initialWorldOffset,
+ x = this._draggable._newPos.x,
+ newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
+ newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
+ newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
+
+ this._draggable._absPos = this._draggable._newPos.clone();
+ this._draggable._newPos.x = newX;
+ },
+
+ _onDragEnd: function (e) {
+ var map = this._map,
+ options = map.options,
+
+ noInertia = !options.inertia || this._times.length < 2;
+
+ map.fire('dragend', e);
+
+ if (noInertia) {
+ map.fire('moveend');
+
+ } else {
+ this._prunePositions(+new Date());
+
+ var direction = this._lastPos.subtract(this._positions[0]),
+ duration = (this._lastTime - this._times[0]) / 1000,
+ ease = options.easeLinearity,
+
+ speedVector = direction.multiplyBy(ease / duration),
+ speed = speedVector.distanceTo([0, 0]),
+
+ limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
+ limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
+
+ decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
+ offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
+
+ if (!offset.x && !offset.y) {
+ map.fire('moveend');
+
+ } else {
+ offset = map._limitOffset(offset, map.options.maxBounds);
+
+ Util.requestAnimFrame(function () {
+ map.panBy(offset, {
+ duration: decelerationDuration,
+ easeLinearity: ease,
+ noMoveStart: true,
+ animate: true
+ });
+ });
+ }
+ }
+ }
+});
+
+// @section Handlers
+// @property dragging: Handler
+// Map dragging handler (by both mouse and touch).
+Map.addInitHook('addHandler', 'dragging', Drag);