1 files changed, 150 insertions, 0 deletions
diff --git a/debian/missing-sources/leaflet.js/map/handler/Map.BoxZoom.js b/debian/missing-sources/leaflet.js/map/handler/Map.BoxZoom.js
new file mode 100644
index 0000000..297a20a
--- /dev/null
+++ b/debian/missing-sources/leaflet.js/map/handler/Map.BoxZoom.js
@@ -0,0 +1,150 @@
+import {Map} from '../Map';
+import {Handler} from '../../core/Handler';
+import * as Util from '../../core/Util';
+import * as DomUtil from '../../dom/DomUtil';
+import * as DomEvent from '../../dom/DomEvent';
+import {LatLngBounds} from '../../geo/LatLngBounds';
+import {Bounds} from '../../geometry/Bounds';
+
+/*
+ * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map
+ * (zoom to a selected bounding box), enabled by default.
+ */
+
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+	// @option boxZoom: Boolean = true
+	// Whether the map can be zoomed to a rectangular area specified by
+	// dragging the mouse while pressing the shift key.
+	boxZoom: true
+});
+
+export var BoxZoom = Handler.extend({
+	initialize: function (map) {
+		this._map = map;
+		this._container = map._container;
+		this._pane = map._panes.overlayPane;
+		this._resetStateTimeout = 0;
+		map.on('unload', this._destroy, this);
+	},
+
+	addHooks: function () {
+		DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
+	},
+
+	removeHooks: function () {
+		DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);
+	},
+
+	moved: function () {
+		return this._moved;
+	},
+
+	_destroy: function () {
+		DomUtil.remove(this._pane);
+		delete this._pane;
+	},
+
+	_resetState: function () {
+		this._resetStateTimeout = 0;
+		this._moved = false;
+	},
+
+	_clearDeferredResetState: function () {
+		if (this._resetStateTimeout !== 0) {
+			clearTimeout(this._resetStateTimeout);
+			this._resetStateTimeout = 0;
+		}
+	},
+
+	_onMouseDown: function (e) {
+		if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
+
+		// Clear the deferred resetState if it hasn't executed yet, otherwise it
+		// will interrupt the interaction and orphan a box element in the container.
+		this._clearDeferredResetState();
+		this._resetState();
+
+		DomUtil.disableTextSelection();
+		DomUtil.disableImageDrag();
+
+		this._startPoint = this._map.mouseEventToContainerPoint(e);
+
+		DomEvent.on(document, {
+			contextmenu: DomEvent.stop,
+			mousemove: this._onMouseMove,
+			mouseup: this._onMouseUp,
+			keydown: this._onKeyDown
+		}, this);
+	},
+
+	_onMouseMove: function (e) {
+		if (!this._moved) {
+			this._moved = true;
+
+			this._box = DomUtil.create('div', 'leaflet-zoom-box', this._container);
+			DomUtil.addClass(this._container, 'leaflet-crosshair');
+
+			this._map.fire('boxzoomstart');
+		}
+
+		this._point = this._map.mouseEventToContainerPoint(e);
+
+		var bounds = new Bounds(this._point, this._startPoint),
+		    size = bounds.getSize();
+
+		DomUtil.setPosition(this._box, bounds.min);
+
+		this._box.style.width  = size.x + 'px';
+		this._box.style.height = size.y + 'px';
+	},
+
+	_finish: function () {
+		if (this._moved) {
+			DomUtil.remove(this._box);
+			DomUtil.removeClass(this._container, 'leaflet-crosshair');
+		}
+
+		DomUtil.enableTextSelection();
+		DomUtil.enableImageDrag();
+
+		DomEvent.off(document, {
+			contextmenu: DomEvent.stop,
+			mousemove: this._onMouseMove,
+			mouseup: this._onMouseUp,
+			keydown: this._onKeyDown
+		}, this);
+	},
+
+	_onMouseUp: function (e) {
+		if ((e.which !== 1) && (e.button !== 1)) { return; }
+
+		this._finish();
+
+		if (!this._moved) { return; }
+		// Postpone to next JS tick so internal click event handling
+		// still see it as "moved".
+		this._clearDeferredResetState();
+		this._resetStateTimeout = setTimeout(Util.bind(this._resetState, this), 0);
+
+		var bounds = new LatLngBounds(
+		        this._map.containerPointToLatLng(this._startPoint),
+		        this._map.containerPointToLatLng(this._point));
+
+		this._map
+			.fitBounds(bounds)
+			.fire('boxzoomend', {boxZoomBounds: bounds});
+	},
+
+	_onKeyDown: function (e) {
+		if (e.keyCode === 27) {
+			this._finish();
+		}
+	}
+});
+
+// @section Handlers
+// @property boxZoom: Handler
+// Box (shift-drag with mouse) zoom handler.
+Map.addInitHook('addHandler', 'boxZoom', BoxZoom);