").addClass(errClass).css("position", "absolute")
+ .css("top", el.offsetTop)
+ .css("left", el.offsetLeft)
+ // setting width can push out the page size, forcing otherwise
+ // unnecessary scrollbars to appear and making it impossible for
+ // the element to shrink; so use max-width instead
+ .css("maxWidth", el.offsetWidth)
+ .css("height", el.offsetHeight);
+ errorDiv.text(err.message);
+ $el.after(errorDiv);
+
+ // Really dumb way to keep the size/position of the error in sync with
+ // the parent element as the window is resized or whatever.
+ var intId = setInterval(function() {
+ if (!errorDiv[0].parentElement) {
+ clearInterval(intId);
+ return;
+ }
+ errorDiv
+ .css("top", el.offsetTop)
+ .css("left", el.offsetLeft)
+ .css("maxWidth", el.offsetWidth)
+ .css("height", el.offsetHeight);
+ }, 500);
+ }
+ }
+ },
+ clearError: function(el) {
+ var $el = $(el);
+ var display = $el.data("restore-display-mode");
+ $el.data("restore-display-mode", null);
+
+ if (display === "inline" || display === "inline-block") {
+ if (display)
+ $el.css("display", display);
+ $(el.nextSibling).filter(".htmlwidgets-error").remove();
+ } else if (display === "block"){
+ $el.css("visibility", "inherit");
+ $(el.nextSibling).filter(".htmlwidgets-error").remove();
+ }
+ },
+ sizing: {}
+ };
+
+ // Called by widget bindings to register a new type of widget. The definition
+ // object can contain the following properties:
+ // - name (required) - A string indicating the binding name, which will be
+ // used by default as the CSS classname to look for.
+ // - initialize (optional) - A function(el) that will be called once per
+ // widget element; if a value is returned, it will be passed as the third
+ // value to renderValue.
+ // - renderValue (required) - A function(el, data, initValue) that will be
+ // called with data. Static contexts will cause this to be called once per
+ // element; Shiny apps will cause this to be called multiple times per
+ // element, as the data changes.
+ window.HTMLWidgets.widget = function(definition) {
+ if (!definition.name) {
+ throw new Error("Widget must have a name");
+ }
+ if (!definition.type) {
+ throw new Error("Widget must have a type");
+ }
+ // Currently we only support output widgets
+ if (definition.type !== "output") {
+ throw new Error("Unrecognized widget type '" + definition.type + "'");
+ }
+ // TODO: Verify that .name is a valid CSS classname
+
+ // Support new-style instance-bound definitions. Old-style class-bound
+ // definitions have one widget "object" per widget per type/class of
+ // widget; the renderValue and resize methods on such widget objects
+ // take el and instance arguments, because the widget object can't
+ // store them. New-style instance-bound definitions have one widget
+ // object per widget instance; the definition that's passed in doesn't
+ // provide renderValue or resize methods at all, just the single method
+ // factory(el, width, height)
+ // which returns an object that has renderValue(x) and resize(w, h).
+ // This enables a far more natural programming style for the widget
+ // author, who can store per-instance state using either OO-style
+ // instance fields or functional-style closure variables (I guess this
+ // is in contrast to what can only be called C-style pseudo-OO which is
+ // what we required before).
+ if (definition.factory) {
+ definition = createLegacyDefinitionAdapter(definition);
+ }
+
+ if (!definition.renderValue) {
+ throw new Error("Widget must have a renderValue function");
+ }
+
+ // For static rendering (non-Shiny), use a simple widget registration
+ // scheme. We also use this scheme for Shiny apps/documents that also
+ // contain static widgets.
+ window.HTMLWidgets.widgets = window.HTMLWidgets.widgets || [];
+ // Merge defaults into the definition; don't mutate the original definition.
+ var staticBinding = extend({}, defaults, definition);
+ overrideMethod(staticBinding, "find", function(superfunc) {
+ return function(scope) {
+ var results = superfunc(scope);
+ // Filter out Shiny outputs, we only want the static kind
+ return filterByClass(results, "html-widget-output", false);
+ };
+ });
+ window.HTMLWidgets.widgets.push(staticBinding);
+
+ if (shinyMode) {
+ // Shiny is running. Register the definition with an output binding.
+ // The definition itself will not be the output binding, instead
+ // we will make an output binding object that delegates to the
+ // definition. This is because we foolishly used the same method
+ // name (renderValue) for htmlwidgets definition and Shiny bindings
+ // but they actually have quite different semantics (the Shiny
+ // bindings receive data that includes lots of metadata that it
+ // strips off before calling htmlwidgets renderValue). We can't
+ // just ignore the difference because in some widgets it's helpful
+ // to call this.renderValue() from inside of resize(), and if
+ // we're not delegating, then that call will go to the Shiny
+ // version instead of the htmlwidgets version.
+
+ // Merge defaults with definition, without mutating either.
+ var bindingDef = extend({}, defaults, definition);
+
+ // This object will be our actual Shiny binding.
+ var shinyBinding = new Shiny.OutputBinding();
+
+ // With a few exceptions, we'll want to simply use the bindingDef's
+ // version of methods if they are available, otherwise fall back to
+ // Shiny's defaults. NOTE: If Shiny's output bindings gain additional
+ // methods in the future, and we want them to be overrideable by
+ // HTMLWidget binding definitions, then we'll need to add them to this
+ // list.
+ delegateMethod(shinyBinding, bindingDef, "getId");
+ delegateMethod(shinyBinding, bindingDef, "onValueChange");
+ delegateMethod(shinyBinding, bindingDef, "onValueError");
+ delegateMethod(shinyBinding, bindingDef, "renderError");
+ delegateMethod(shinyBinding, bindingDef, "clearError");
+ delegateMethod(shinyBinding, bindingDef, "showProgress");
+
+ // The find, renderValue, and resize are handled differently, because we
+ // want to actually decorate the behavior of the bindingDef methods.
+
+ shinyBinding.find = function(scope) {
+ var results = bindingDef.find(scope);
+
+ // Only return elements that are Shiny outputs, not static ones
+ var dynamicResults = results.filter(".html-widget-output");
+
+ // It's possible that whatever caused Shiny to think there might be
+ // new dynamic outputs, also caused there to be new static outputs.
+ // Since there might be lots of different htmlwidgets bindings, we
+ // schedule execution for later--no need to staticRender multiple
+ // times.
+ if (results.length !== dynamicResults.length)
+ scheduleStaticRender();
+
+ return dynamicResults;
+ };
+
+ // Wrap renderValue to handle initialization, which unfortunately isn't
+ // supported natively by Shiny at the time of this writing.
+
+ shinyBinding.renderValue = function(el, data) {
+ Shiny.renderDependencies(data.deps);
+ // Resolve strings marked as javascript literals to objects
+ if (!(data.evals instanceof Array)) data.evals = [data.evals];
+ for (var i = 0; data.evals && i < data.evals.length; i++) {
+ window.HTMLWidgets.evaluateStringMember(data.x, data.evals[i]);
+ }
+ if (!bindingDef.renderOnNullValue) {
+ if (data.x === null) {
+ el.style.visibility = "hidden";
+ return;
+ } else {
+ el.style.visibility = "inherit";
+ }
+ }
+ if (!elementData(el, "initialized")) {
+ initSizing(el);
+
+ elementData(el, "initialized", true);
+ if (bindingDef.initialize) {
+ var rect = el.getBoundingClientRect();
+ var result = bindingDef.initialize(el, rect.width, rect.height);
+ elementData(el, "init_result", result);
+ }
+ }
+ bindingDef.renderValue(el, data.x, elementData(el, "init_result"));
+ evalAndRun(data.jsHooks.render, elementData(el, "init_result"), [el, data.x]);
+ };
+
+ // Only override resize if bindingDef implements it
+ if (bindingDef.resize) {
+ shinyBinding.resize = function(el, width, height) {
+ // Shiny can call resize before initialize/renderValue have been
+ // called, which doesn't make sense for widgets.
+ if (elementData(el, "initialized")) {
+ bindingDef.resize(el, width, height, elementData(el, "init_result"));
+ }
+ };
+ }
+
+ Shiny.outputBindings.register(shinyBinding, bindingDef.name);
+ }
+ };
+
+ var scheduleStaticRenderTimerId = null;
+ function scheduleStaticRender() {
+ if (!scheduleStaticRenderTimerId) {
+ scheduleStaticRenderTimerId = setTimeout(function() {
+ scheduleStaticRenderTimerId = null;
+ window.HTMLWidgets.staticRender();
+ }, 1);
+ }
+ }
+
+ // Render static widgets after the document finishes loading
+ // Statically render all elements that are of this widget's class
+ window.HTMLWidgets.staticRender = function() {
+ var bindings = window.HTMLWidgets.widgets || [];
+ forEach(bindings, function(binding) {
+ var matches = binding.find(document.documentElement);
+ forEach(matches, function(el) {
+ var sizeObj = initSizing(el, binding);
+
+ var getSize = function(el) {
+ if (sizeObj) {
+ return {w: sizeObj.getWidth(), h: sizeObj.getHeight()}
+ } else {
+ var rect = el.getBoundingClientRect();
+ return {w: rect.width, h: rect.height}
+ }
+ };
+
+ if (hasClass(el, "html-widget-static-bound"))
+ return;
+ el.className = el.className + " html-widget-static-bound";
+
+ var initResult;
+ if (binding.initialize) {
+ var size = getSize(el);
+ initResult = binding.initialize(el, size.w, size.h);
+ elementData(el, "init_result", initResult);
+ }
+
+ if (binding.resize) {
+ var lastSize = getSize(el);
+ var resizeHandler = function(e) {
+ var size = getSize(el);
+ if (size.w === 0 && size.h === 0)
+ return;
+ if (size.w === lastSize.w && size.h === lastSize.h)
+ return;
+ lastSize = size;
+ binding.resize(el, size.w, size.h, initResult);
+ };
+
+ on(window, "resize", resizeHandler);
+
+ // This is needed for cases where we're running in a Shiny
+ // app, but the widget itself is not a Shiny output, but
+ // rather a simple static widget. One example of this is
+ // an rmarkdown document that has runtime:shiny and widget
+ // that isn't in a render function. Shiny only knows to
+ // call resize handlers for Shiny outputs, not for static
+ // widgets, so we do it ourselves.
+ if (window.jQuery) {
+ window.jQuery(document).on(
+ "shown.htmlwidgets shown.bs.tab.htmlwidgets shown.bs.collapse.htmlwidgets",
+ resizeHandler
+ );
+ window.jQuery(document).on(
+ "hidden.htmlwidgets hidden.bs.tab.htmlwidgets hidden.bs.collapse.htmlwidgets",
+ resizeHandler
+ );
+ }
+
+ // This is needed for the specific case of ioslides, which
+ // flips slides between display:none and display:block.
+ // Ideally we would not have to have ioslide-specific code
+ // here, but rather have ioslides raise a generic event,
+ // but the rmarkdown package just went to CRAN so the
+ // window to getting that fixed may be long.
+ if (window.addEventListener) {
+ // It's OK to limit this to window.addEventListener
+ // browsers because ioslides itself only supports
+ // such browsers.
+ on(document, "slideenter", resizeHandler);
+ on(document, "slideleave", resizeHandler);
+ }
+ }
+
+ var scriptData = document.querySelector("script[data-for='" + el.id + "'][type='application/json']");
+ if (scriptData) {
+ var data = JSON.parse(scriptData.textContent || scriptData.text);
+ // Resolve strings marked as javascript literals to objects
+ if (!(data.evals instanceof Array)) data.evals = [data.evals];
+ for (var k = 0; data.evals && k < data.evals.length; k++) {
+ window.HTMLWidgets.evaluateStringMember(data.x, data.evals[k]);
+ }
+ binding.renderValue(el, data.x, initResult);
+ evalAndRun(data.jsHooks.render, initResult, [el, data.x]);
+ }
+ });
+ });
+
+ invokePostRenderHandlers();
+ }
+
+
+ function has_jQuery3() {
+ if (!window.jQuery) {
+ return false;
+ }
+ var $version = window.jQuery.fn.jquery;
+ var $major_version = parseInt($version.split(".")[0]);
+ return $major_version >= 3;
+ }
+
+ /*
+ / Shiny 1.4 bumped jQuery from 1.x to 3.x which means jQuery's
+ / on-ready handler (i.e., $(fn)) is now asyncronous (i.e., it now
+ / really means $(setTimeout(fn)).
+ / https://jquery.com/upgrade-guide/3.0/#breaking-change-document-ready-handlers-are-now-asynchronous
+ /
+ / Since Shiny uses $() to schedule initShiny, shiny>=1.4 calls initShiny
+ / one tick later than it did before, which means staticRender() is
+ / called renderValue() earlier than (advanced) widget authors might be expecting.
+ / https://github.com/rstudio/shiny/issues/2630
+ /
+ / For a concrete example, leaflet has some methods (e.g., updateBounds)
+ / which reference Shiny methods registered in initShiny (e.g., setInputValue).
+ / Since leaflet is privy to this life-cycle, it knows to use setTimeout() to
+ / delay execution of those methods (until Shiny methods are ready)
+ / https://github.com/rstudio/leaflet/blob/18ec981/javascript/src/index.js#L266-L268
+ /
+ / Ideally widget authors wouldn't need to use this setTimeout() hack that
+ / leaflet uses to call Shiny methods on a staticRender(). In the long run,
+ / the logic initShiny should be broken up so that method registration happens
+ / right away, but binding happens later.
+ */
+ function maybeStaticRenderLater() {
+ if (shinyMode && has_jQuery3()) {
+ window.jQuery(window.HTMLWidgets.staticRender);
+ } else {
+ window.HTMLWidgets.staticRender();
+ }
+ }
+
+ if (document.addEventListener) {
+ document.addEventListener("DOMContentLoaded", function() {
+ document.removeEventListener("DOMContentLoaded", arguments.callee, false);
+ maybeStaticRenderLater();
+ }, false);
+ } else if (document.attachEvent) {
+ document.attachEvent("onreadystatechange", function() {
+ if (document.readyState === "complete") {
+ document.detachEvent("onreadystatechange", arguments.callee);
+ maybeStaticRenderLater();
+ }
+ });
+ }
+
+
+ window.HTMLWidgets.getAttachmentUrl = function(depname, key) {
+ // If no key, default to the first item
+ if (typeof(key) === "undefined")
+ key = 1;
+
+ var link = document.getElementById(depname + "-" + key + "-attachment");
+ if (!link) {
+ throw new Error("Attachment " + depname + "/" + key + " not found in document");
+ }
+ return link.getAttribute("href");
+ };
+
+ window.HTMLWidgets.dataframeToD3 = function(df) {
+ var names = [];
+ var length;
+ for (var name in df) {
+ if (df.hasOwnProperty(name))
+ names.push(name);
+ if (typeof(df[name]) !== "object" || typeof(df[name].length) === "undefined") {
+ throw new Error("All fields must be arrays");
+ } else if (typeof(length) !== "undefined" && length !== df[name].length) {
+ throw new Error("All fields must be arrays of the same length");
+ }
+ length = df[name].length;
+ }
+ var results = [];
+ var item;
+ for (var row = 0; row < length; row++) {
+ item = {};
+ for (var col = 0; col < names.length; col++) {
+ item[names[col]] = df[names[col]][row];
+ }
+ results.push(item);
+ }
+ return results;
+ };
+
+ window.HTMLWidgets.transposeArray2D = function(array) {
+ if (array.length === 0) return array;
+ var newArray = array[0].map(function(col, i) {
+ return array.map(function(row) {
+ return row[i]
+ })
+ });
+ return newArray;
+ };
+ // Split value at splitChar, but allow splitChar to be escaped
+ // using escapeChar. Any other characters escaped by escapeChar
+ // will be included as usual (including escapeChar itself).
+ function splitWithEscape(value, splitChar, escapeChar) {
+ var results = [];
+ var escapeMode = false;
+ var currentResult = "";
+ for (var pos = 0; pos < value.length; pos++) {
+ if (!escapeMode) {
+ if (value[pos] === splitChar) {
+ results.push(currentResult);
+ currentResult = "";
+ } else if (value[pos] === escapeChar) {
+ escapeMode = true;
+ } else {
+ currentResult += value[pos];
+ }
+ } else {
+ currentResult += value[pos];
+ escapeMode = false;
+ }
+ }
+ if (currentResult !== "") {
+ results.push(currentResult);
+ }
+ return results;
+ }
+ // Function authored by Yihui/JJ Allaire
+ window.HTMLWidgets.evaluateStringMember = function(o, member) {
+ var parts = splitWithEscape(member, '.', '\\');
+ for (var i = 0, l = parts.length; i < l; i++) {
+ var part = parts[i];
+ // part may be a character or 'numeric' member name
+ if (o !== null && typeof o === "object" && part in o) {
+ if (i == (l - 1)) { // if we are at the end of the line then evalulate
+ if (typeof o[part] === "string")
+ o[part] = tryEval(o[part]);
+ } else { // otherwise continue to next embedded object
+ o = o[part];
+ }
+ }
+ }
+ };
+
+ // Retrieve the HTMLWidget instance (i.e. the return value of an
+ // HTMLWidget binding's initialize() or factory() function)
+ // associated with an element, or null if none.
+ window.HTMLWidgets.getInstance = function(el) {
+ return elementData(el, "init_result");
+ };
+
+ // Finds the first element in the scope that matches the selector,
+ // and returns the HTMLWidget instance (i.e. the return value of
+ // an HTMLWidget binding's initialize() or factory() function)
+ // associated with that element, if any. If no element matches the
+ // selector, or the first matching element has no HTMLWidget
+ // instance associated with it, then null is returned.
+ //
+ // The scope argument is optional, and defaults to window.document.
+ window.HTMLWidgets.find = function(scope, selector) {
+ if (arguments.length == 1) {
+ selector = scope;
+ scope = document;
+ }
+
+ var el = scope.querySelector(selector);
+ if (el === null) {
+ return null;
+ } else {
+ return window.HTMLWidgets.getInstance(el);
+ }
+ };
+
+ // Finds all elements in the scope that match the selector, and
+ // returns the HTMLWidget instances (i.e. the return values of
+ // an HTMLWidget binding's initialize() or factory() function)
+ // associated with the elements, in an array. If elements that
+ // match the selector don't have an associated HTMLWidget
+ // instance, the returned array will contain nulls.
+ //
+ // The scope argument is optional, and defaults to window.document.
+ window.HTMLWidgets.findAll = function(scope, selector) {
+ if (arguments.length == 1) {
+ selector = scope;
+ scope = document;
+ }
+
+ var nodes = scope.querySelectorAll(selector);
+ var results = [];
+ for (var i = 0; i < nodes.length; i++) {
+ results.push(window.HTMLWidgets.getInstance(nodes[i]));
+ }
+ return results;
+ };
+
+ var postRenderHandlers = [];
+ function invokePostRenderHandlers() {
+ while (postRenderHandlers.length) {
+ var handler = postRenderHandlers.shift();
+ if (handler) {
+ handler();
+ }
+ }
+ }
+
+ // Register the given callback function to be invoked after the
+ // next time static widgets are rendered.
+ window.HTMLWidgets.addPostRenderHandler = function(callback) {
+ postRenderHandlers.push(callback);
+ };
+
+ // Takes a new-style instance-bound definition, and returns an
+ // old-style class-bound definition. This saves us from having
+ // to rewrite all the logic in this file to accomodate both
+ // types of definitions.
+ function createLegacyDefinitionAdapter(defn) {
+ var result = {
+ name: defn.name,
+ type: defn.type,
+ initialize: function(el, width, height) {
+ return defn.factory(el, width, height);
+ },
+ renderValue: function(el, x, instance) {
+ return instance.renderValue(x);
+ },
+ resize: function(el, width, height, instance) {
+ return instance.resize(width, height);
+ }
+ };
+
+ if (defn.find)
+ result.find = defn.find;
+ if (defn.renderError)
+ result.renderError = defn.renderError;
+ if (defn.clearError)
+ result.clearError = defn.clearError;
+
+ return result;
+ }
+})();
diff --git a/dev/articles/extending_files/leaflet-1.3.1/images/layers-2x.png b/dev/articles/extending_files/leaflet-1.3.1/images/layers-2x.png
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diff --git a/dev/articles/extending_files/leaflet-1.3.1/images/layers.png b/dev/articles/extending_files/leaflet-1.3.1/images/layers.png
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index 000000000..1a72e5784
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diff --git a/dev/articles/extending_files/leaflet-1.3.1/images/marker-icon-2x.png b/dev/articles/extending_files/leaflet-1.3.1/images/marker-icon-2x.png
new file mode 100644
index 000000000..88f9e5018
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diff --git a/dev/articles/extending_files/leaflet-1.3.1/images/marker-icon.png b/dev/articles/extending_files/leaflet-1.3.1/images/marker-icon.png
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diff --git a/dev/articles/extending_files/leaflet-1.3.1/images/marker-shadow.png b/dev/articles/extending_files/leaflet-1.3.1/images/marker-shadow.png
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diff --git a/dev/articles/extending_files/leaflet-1.3.1/leaflet.css b/dev/articles/extending_files/leaflet-1.3.1/leaflet.css
new file mode 100644
index 000000000..230e5bad1
--- /dev/null
+++ b/dev/articles/extending_files/leaflet-1.3.1/leaflet.css
@@ -0,0 +1,636 @@
+/* required styles */
+
+.leaflet-pane,
+.leaflet-tile,
+.leaflet-marker-icon,
+.leaflet-marker-shadow,
+.leaflet-tile-container,
+.leaflet-pane > svg,
+.leaflet-pane > canvas,
+.leaflet-zoom-box,
+.leaflet-image-layer,
+.leaflet-layer {
+ position: absolute;
+ left: 0;
+ top: 0;
+ }
+.leaflet-container {
+ overflow: hidden;
+ }
+.leaflet-tile,
+.leaflet-marker-icon,
+.leaflet-marker-shadow {
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ user-select: none;
+ -webkit-user-drag: none;
+ }
+/* Safari renders non-retina tile on retina better with this, but Chrome is worse */
+.leaflet-safari .leaflet-tile {
+ image-rendering: -webkit-optimize-contrast;
+ }
+/* hack that prevents hw layers "stretching" when loading new tiles */
+.leaflet-safari .leaflet-tile-container {
+ width: 1600px;
+ height: 1600px;
+ -webkit-transform-origin: 0 0;
+ }
+.leaflet-marker-icon,
+.leaflet-marker-shadow {
+ display: block;
+ }
+/* .leaflet-container svg: reset svg max-width decleration shipped in Joomla! (joomla.org) 3.x */
+/* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */
+.leaflet-container .leaflet-overlay-pane svg,
+.leaflet-container .leaflet-marker-pane img,
+.leaflet-container .leaflet-shadow-pane img,
+.leaflet-container .leaflet-tile-pane img,
+.leaflet-container img.leaflet-image-layer {
+ max-width: none !important;
+ max-height: none !important;
+ }
+
+.leaflet-container.leaflet-touch-zoom {
+ -ms-touch-action: pan-x pan-y;
+ touch-action: pan-x pan-y;
+ }
+.leaflet-container.leaflet-touch-drag {
+ -ms-touch-action: pinch-zoom;
+ /* Fallback for FF which doesn't support pinch-zoom */
+ touch-action: none;
+ touch-action: pinch-zoom;
+}
+.leaflet-container.leaflet-touch-drag.leaflet-touch-zoom {
+ -ms-touch-action: none;
+ touch-action: none;
+}
+.leaflet-container {
+ -webkit-tap-highlight-color: transparent;
+}
+.leaflet-container a {
+ -webkit-tap-highlight-color: rgba(51, 181, 229, 0.4);
+}
+.leaflet-tile {
+ filter: inherit;
+ visibility: hidden;
+ }
+.leaflet-tile-loaded {
+ visibility: inherit;
+ }
+.leaflet-zoom-box {
+ width: 0;
+ height: 0;
+ -moz-box-sizing: border-box;
+ box-sizing: border-box;
+ z-index: 800;
+ }
+/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */
+.leaflet-overlay-pane svg {
+ -moz-user-select: none;
+ }
+
+.leaflet-pane { z-index: 400; }
+
+.leaflet-tile-pane { z-index: 200; }
+.leaflet-overlay-pane { z-index: 400; }
+.leaflet-shadow-pane { z-index: 500; }
+.leaflet-marker-pane { z-index: 600; }
+.leaflet-tooltip-pane { z-index: 650; }
+.leaflet-popup-pane { z-index: 700; }
+
+.leaflet-map-pane canvas { z-index: 100; }
+.leaflet-map-pane svg { z-index: 200; }
+
+.leaflet-vml-shape {
+ width: 1px;
+ height: 1px;
+ }
+.lvml {
+ behavior: url(#default#VML);
+ display: inline-block;
+ position: absolute;
+ }
+
+
+/* control positioning */
+
+.leaflet-control {
+ position: relative;
+ z-index: 800;
+ pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
+ pointer-events: auto;
+ }
+.leaflet-top,
+.leaflet-bottom {
+ position: absolute;
+ z-index: 1000;
+ pointer-events: none;
+ }
+.leaflet-top {
+ top: 0;
+ }
+.leaflet-right {
+ right: 0;
+ }
+.leaflet-bottom {
+ bottom: 0;
+ }
+.leaflet-left {
+ left: 0;
+ }
+.leaflet-control {
+ float: left;
+ clear: both;
+ }
+.leaflet-right .leaflet-control {
+ float: right;
+ }
+.leaflet-top .leaflet-control {
+ margin-top: 10px;
+ }
+.leaflet-bottom .leaflet-control {
+ margin-bottom: 10px;
+ }
+.leaflet-left .leaflet-control {
+ margin-left: 10px;
+ }
+.leaflet-right .leaflet-control {
+ margin-right: 10px;
+ }
+
+
+/* zoom and fade animations */
+
+.leaflet-fade-anim .leaflet-tile {
+ will-change: opacity;
+ }
+.leaflet-fade-anim .leaflet-popup {
+ opacity: 0;
+ -webkit-transition: opacity 0.2s linear;
+ -moz-transition: opacity 0.2s linear;
+ -o-transition: opacity 0.2s linear;
+ transition: opacity 0.2s linear;
+ }
+.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
+ opacity: 1;
+ }
+.leaflet-zoom-animated {
+ -webkit-transform-origin: 0 0;
+ -ms-transform-origin: 0 0;
+ transform-origin: 0 0;
+ }
+.leaflet-zoom-anim .leaflet-zoom-animated {
+ will-change: transform;
+ }
+.leaflet-zoom-anim .leaflet-zoom-animated {
+ -webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1);
+ -moz-transition: -moz-transform 0.25s cubic-bezier(0,0,0.25,1);
+ -o-transition: -o-transform 0.25s cubic-bezier(0,0,0.25,1);
+ transition: transform 0.25s cubic-bezier(0,0,0.25,1);
+ }
+.leaflet-zoom-anim .leaflet-tile,
+.leaflet-pan-anim .leaflet-tile {
+ -webkit-transition: none;
+ -moz-transition: none;
+ -o-transition: none;
+ transition: none;
+ }
+
+.leaflet-zoom-anim .leaflet-zoom-hide {
+ visibility: hidden;
+ }
+
+
+/* cursors */
+
+.leaflet-interactive {
+ cursor: pointer;
+ }
+.leaflet-grab {
+ cursor: -webkit-grab;
+ cursor: -moz-grab;
+ }
+.leaflet-crosshair,
+.leaflet-crosshair .leaflet-interactive {
+ cursor: crosshair;
+ }
+.leaflet-popup-pane,
+.leaflet-control {
+ cursor: auto;
+ }
+.leaflet-dragging .leaflet-grab,
+.leaflet-dragging .leaflet-grab .leaflet-interactive,
+.leaflet-dragging .leaflet-marker-draggable {
+ cursor: move;
+ cursor: -webkit-grabbing;
+ cursor: -moz-grabbing;
+ }
+
+/* marker & overlays interactivity */
+.leaflet-marker-icon,
+.leaflet-marker-shadow,
+.leaflet-image-layer,
+.leaflet-pane > svg path,
+.leaflet-tile-container {
+ pointer-events: none;
+ }
+
+.leaflet-marker-icon.leaflet-interactive,
+.leaflet-image-layer.leaflet-interactive,
+.leaflet-pane > svg path.leaflet-interactive {
+ pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
+ pointer-events: auto;
+ }
+
+/* visual tweaks */
+
+.leaflet-container {
+ background: #ddd;
+ outline: 0;
+ }
+.leaflet-container a {
+ color: #0078A8;
+ }
+.leaflet-container a.leaflet-active {
+ outline: 2px solid orange;
+ }
+.leaflet-zoom-box {
+ border: 2px dotted #38f;
+ background: rgba(255,255,255,0.5);
+ }
+
+
+/* general typography */
+.leaflet-container {
+ font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif;
+ }
+
+
+/* general toolbar styles */
+
+.leaflet-bar {
+ box-shadow: 0 1px 5px rgba(0,0,0,0.65);
+ border-radius: 4px;
+ }
+.leaflet-bar a,
+.leaflet-bar a:hover {
+ background-color: #fff;
+ border-bottom: 1px solid #ccc;
+ width: 26px;
+ height: 26px;
+ line-height: 26px;
+ display: block;
+ text-align: center;
+ text-decoration: none;
+ color: black;
+ }
+.leaflet-bar a,
+.leaflet-control-layers-toggle {
+ background-position: 50% 50%;
+ background-repeat: no-repeat;
+ display: block;
+ }
+.leaflet-bar a:hover {
+ background-color: #f4f4f4;
+ }
+.leaflet-bar a:first-child {
+ border-top-left-radius: 4px;
+ border-top-right-radius: 4px;
+ }
+.leaflet-bar a:last-child {
+ border-bottom-left-radius: 4px;
+ border-bottom-right-radius: 4px;
+ border-bottom: none;
+ }
+.leaflet-bar a.leaflet-disabled {
+ cursor: default;
+ background-color: #f4f4f4;
+ color: #bbb;
+ }
+
+.leaflet-touch .leaflet-bar a {
+ width: 30px;
+ height: 30px;
+ line-height: 30px;
+ }
+.leaflet-touch .leaflet-bar a:first-child {
+ border-top-left-radius: 2px;
+ border-top-right-radius: 2px;
+ }
+.leaflet-touch .leaflet-bar a:last-child {
+ border-bottom-left-radius: 2px;
+ border-bottom-right-radius: 2px;
+ }
+
+/* zoom control */
+
+.leaflet-control-zoom-in,
+.leaflet-control-zoom-out {
+ font: bold 18px 'Lucida Console', Monaco, monospace;
+ text-indent: 1px;
+ }
+
+.leaflet-touch .leaflet-control-zoom-in, .leaflet-touch .leaflet-control-zoom-out {
+ font-size: 22px;
+ }
+
+
+/* layers control */
+
+.leaflet-control-layers {
+ box-shadow: 0 1px 5px rgba(0,0,0,0.4);
+ background: #fff;
+ border-radius: 5px;
+ }
+.leaflet-control-layers-toggle {
+ background-image: url(images/layers.png);
+ width: 36px;
+ height: 36px;
+ }
+.leaflet-retina .leaflet-control-layers-toggle {
+ background-image: url(images/layers-2x.png);
+ background-size: 26px 26px;
+ }
+.leaflet-touch .leaflet-control-layers-toggle {
+ width: 44px;
+ height: 44px;
+ }
+.leaflet-control-layers .leaflet-control-layers-list,
+.leaflet-control-layers-expanded .leaflet-control-layers-toggle {
+ display: none;
+ }
+.leaflet-control-layers-expanded .leaflet-control-layers-list {
+ display: block;
+ position: relative;
+ }
+.leaflet-control-layers-expanded {
+ padding: 6px 10px 6px 6px;
+ color: #333;
+ background: #fff;
+ }
+.leaflet-control-layers-scrollbar {
+ overflow-y: scroll;
+ overflow-x: hidden;
+ padding-right: 5px;
+ }
+.leaflet-control-layers-selector {
+ margin-top: 2px;
+ position: relative;
+ top: 1px;
+ }
+.leaflet-control-layers label {
+ display: block;
+ }
+.leaflet-control-layers-separator {
+ height: 0;
+ border-top: 1px solid #ddd;
+ margin: 5px -10px 5px -6px;
+ }
+
+/* Default icon URLs */
+.leaflet-default-icon-path {
+ background-image: url(images/marker-icon.png);
+ }
+
+
+/* attribution and scale controls */
+
+.leaflet-container .leaflet-control-attribution {
+ background: #fff;
+ background: rgba(255, 255, 255, 0.7);
+ margin: 0;
+ }
+.leaflet-control-attribution,
+.leaflet-control-scale-line {
+ padding: 0 5px;
+ color: #333;
+ }
+.leaflet-control-attribution a {
+ text-decoration: none;
+ }
+.leaflet-control-attribution a:hover {
+ text-decoration: underline;
+ }
+.leaflet-container .leaflet-control-attribution,
+.leaflet-container .leaflet-control-scale {
+ font-size: 11px;
+ }
+.leaflet-left .leaflet-control-scale {
+ margin-left: 5px;
+ }
+.leaflet-bottom .leaflet-control-scale {
+ margin-bottom: 5px;
+ }
+.leaflet-control-scale-line {
+ border: 2px solid #777;
+ border-top: none;
+ line-height: 1.1;
+ padding: 2px 5px 1px;
+ font-size: 11px;
+ white-space: nowrap;
+ overflow: hidden;
+ -moz-box-sizing: border-box;
+ box-sizing: border-box;
+
+ background: #fff;
+ background: rgba(255, 255, 255, 0.5);
+ }
+.leaflet-control-scale-line:not(:first-child) {
+ border-top: 2px solid #777;
+ border-bottom: none;
+ margin-top: -2px;
+ }
+.leaflet-control-scale-line:not(:first-child):not(:last-child) {
+ border-bottom: 2px solid #777;
+ }
+
+.leaflet-touch .leaflet-control-attribution,
+.leaflet-touch .leaflet-control-layers,
+.leaflet-touch .leaflet-bar {
+ box-shadow: none;
+ }
+.leaflet-touch .leaflet-control-layers,
+.leaflet-touch .leaflet-bar {
+ border: 2px solid rgba(0,0,0,0.2);
+ background-clip: padding-box;
+ }
+
+
+/* popup */
+
+.leaflet-popup {
+ position: absolute;
+ text-align: center;
+ margin-bottom: 20px;
+ }
+.leaflet-popup-content-wrapper {
+ padding: 1px;
+ text-align: left;
+ border-radius: 12px;
+ }
+.leaflet-popup-content {
+ margin: 13px 19px;
+ line-height: 1.4;
+ }
+.leaflet-popup-content p {
+ margin: 18px 0;
+ }
+.leaflet-popup-tip-container {
+ width: 40px;
+ height: 20px;
+ position: absolute;
+ left: 50%;
+ margin-left: -20px;
+ overflow: hidden;
+ pointer-events: none;
+ }
+.leaflet-popup-tip {
+ width: 17px;
+ height: 17px;
+ padding: 1px;
+
+ margin: -10px auto 0;
+
+ -webkit-transform: rotate(45deg);
+ -moz-transform: rotate(45deg);
+ -ms-transform: rotate(45deg);
+ -o-transform: rotate(45deg);
+ transform: rotate(45deg);
+ }
+.leaflet-popup-content-wrapper,
+.leaflet-popup-tip {
+ background: white;
+ color: #333;
+ box-shadow: 0 3px 14px rgba(0,0,0,0.4);
+ }
+.leaflet-container a.leaflet-popup-close-button {
+ position: absolute;
+ top: 0;
+ right: 0;
+ padding: 4px 4px 0 0;
+ border: none;
+ text-align: center;
+ width: 18px;
+ height: 14px;
+ font: 16px/14px Tahoma, Verdana, sans-serif;
+ color: #c3c3c3;
+ text-decoration: none;
+ font-weight: bold;
+ background: transparent;
+ }
+.leaflet-container a.leaflet-popup-close-button:hover {
+ color: #999;
+ }
+.leaflet-popup-scrolled {
+ overflow: auto;
+ border-bottom: 1px solid #ddd;
+ border-top: 1px solid #ddd;
+ }
+
+.leaflet-oldie .leaflet-popup-content-wrapper {
+ zoom: 1;
+ }
+.leaflet-oldie .leaflet-popup-tip {
+ width: 24px;
+ margin: 0 auto;
+
+ -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)";
+ filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678);
+ }
+.leaflet-oldie .leaflet-popup-tip-container {
+ margin-top: -1px;
+ }
+
+.leaflet-oldie .leaflet-control-zoom,
+.leaflet-oldie .leaflet-control-layers,
+.leaflet-oldie .leaflet-popup-content-wrapper,
+.leaflet-oldie .leaflet-popup-tip {
+ border: 1px solid #999;
+ }
+
+
+/* div icon */
+
+.leaflet-div-icon {
+ background: #fff;
+ border: 1px solid #666;
+ }
+
+
+/* Tooltip */
+/* Base styles for the element that has a tooltip */
+.leaflet-tooltip {
+ position: absolute;
+ padding: 6px;
+ background-color: #fff;
+ border: 1px solid #fff;
+ border-radius: 3px;
+ color: #222;
+ white-space: nowrap;
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ -ms-user-select: none;
+ user-select: none;
+ pointer-events: none;
+ box-shadow: 0 1px 3px rgba(0,0,0,0.4);
+ }
+.leaflet-tooltip.leaflet-clickable {
+ cursor: pointer;
+ pointer-events: auto;
+ }
+.leaflet-tooltip-top:before,
+.leaflet-tooltip-bottom:before,
+.leaflet-tooltip-left:before,
+.leaflet-tooltip-right:before {
+ position: absolute;
+ pointer-events: none;
+ border: 6px solid transparent;
+ background: transparent;
+ content: "";
+ }
+
+/* Directions */
+
+.leaflet-tooltip-bottom {
+ margin-top: 6px;
+}
+.leaflet-tooltip-top {
+ margin-top: -6px;
+}
+.leaflet-tooltip-bottom:before,
+.leaflet-tooltip-top:before {
+ left: 50%;
+ margin-left: -6px;
+ }
+.leaflet-tooltip-top:before {
+ bottom: 0;
+ margin-bottom: -12px;
+ border-top-color: #fff;
+ }
+.leaflet-tooltip-bottom:before {
+ top: 0;
+ margin-top: -12px;
+ margin-left: -6px;
+ border-bottom-color: #fff;
+ }
+.leaflet-tooltip-left {
+ margin-left: -6px;
+}
+.leaflet-tooltip-right {
+ margin-left: 6px;
+}
+.leaflet-tooltip-left:before,
+.leaflet-tooltip-right:before {
+ top: 50%;
+ margin-top: -6px;
+ }
+.leaflet-tooltip-left:before {
+ right: 0;
+ margin-right: -12px;
+ border-left-color: #fff;
+ }
+.leaflet-tooltip-right:before {
+ left: 0;
+ margin-left: -12px;
+ border-right-color: #fff;
+ }
diff --git a/dev/articles/extending_files/leaflet-1.3.1/leaflet.js b/dev/articles/extending_files/leaflet-1.3.1/leaflet.js
new file mode 100644
index 000000000..4eca8af7f
--- /dev/null
+++ b/dev/articles/extending_files/leaflet-1.3.1/leaflet.js
@@ -0,0 +1,5 @@
+/* @preserve
+ * Leaflet 1.3.1+Detached: ba6f97fff8647e724e4dfe66d2ed7da11f908989.ba6f97f, a JS library for interactive maps. https://leafletjs.com
+ * (c) 2010-2017 Vladimir Agafonkin, (c) 2010-2011 CloudMade
+ */
+!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?i(exports):"function"==typeof define&&define.amd?define(["exports"],i):i(t.L={})}(this,function(t){"use strict";function i(t){var i,e,n,o;for(e=1,n=arguments.length;e
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this.x+=t.x,this.y+=t.y,this},subtract:function(t){return this.clone()._subtract(w(t))},_subtract:function(t){return this.x-=t.x,this.y-=t.y,this},divideBy:function(t){return this.clone()._divideBy(t)},_divideBy:function(t){return this.x/=t,this.y/=t,this},multiplyBy:function(t){return this.clone()._multiplyBy(t)},_multiplyBy:function(t){return this.x*=t,this.y*=t,this},scaleBy:function(t){return new x(this.x*t.x,this.y*t.y)},unscaleBy:function(t){return new x(this.x/t.x,this.y/t.y)},round:function(){return this.clone()._round()},_round:function(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this},floor:function(){return this.clone()._floor()},_floor:function(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this},ceil:function(){return this.clone()._ceil()},_ceil:function(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this},trunc:function(){return this.clone()._trunc()},_trunc:function(){return this.x=li(this.x),this.y=li(this.y),this},distanceTo:function(t){var i=(t=w(t)).x-this.x,e=t.y-this.y;return Math.sqrt(i*i+e*e)},equals:function(t){return(t=w(t)).x===this.x&&t.y===this.y},contains:function(t){return t=w(t),Math.abs(t.x)<=Math.abs(this.x)&&Math.abs(t.y)<=Math.abs(this.y)},toString:function(){return"Point("+a(this.x)+", "+a(this.y)+")"}},P.prototype={extend:function(t){return t=w(t),this.min||this.max?(this.min.x=Math.min(t.x,this.min.x),this.max.x=Math.max(t.x,this.max.x),this.min.y=Math.min(t.y,this.min.y),this.max.y=Math.max(t.y,this.max.y)):(this.min=t.clone(),this.max=t.clone()),this},getCenter:function(t){return new x((this.min.x+this.max.x)/2,(this.min.y+this.max.y)/2,t)},getBottomLeft:function(){return new x(this.min.x,this.max.y)},getTopRight:function(){return new x(this.max.x,this.min.y)},getTopLeft:function(){return this.min},getBottomRight:function(){return this.max},getSize:function(){return this.max.subtract(this.min)},contains:function(t){var i,e;return(t="number"==typeof t[0]||t instanceof x?w(t):b(t))instanceof P?(i=t.min,e=t.max):i=e=t,i.x>=this.min.x&&e.x<=this.max.x&&i.y>=this.min.y&&e.y<=this.max.y},intersects:function(t){t=b(t);var i=this.min,e=this.max,n=t.min,o=t.max,s=o.x>=i.x&&n.x<=e.x,r=o.y>=i.y&&n.y<=e.y;return s&&r},overlaps:function(t){t=b(t);var i=this.min,e=this.max,n=t.min,o=t.max,s=o.x>i.x&&n.xi.y&&n.y=n.lat&&e.lat<=o.lat&&i.lng>=n.lng&&e.lng<=o.lng},intersects:function(t){t=z(t);var i=this._southWest,e=this._northEast,n=t.getSouthWest(),o=t.getNorthEast(),s=o.lat>=i.lat&&n.lat<=e.lat,r=o.lng>=i.lng&&n.lng<=e.lng;return s&&r},overlaps:function(t){t=z(t);var i=this._southWest,e=this._northEast,n=t.getSouthWest(),o=t.getNorthEast(),s=o.lat>i.lat&&n.lati.lng&&n.lng1,Yi=!!document.createElement("canvas").getContext,Xi=!(!document.createElementNS||!E("svg").createSVGRect),Ji=!Xi&&function(){try{var t=document.createElement("div");t.innerHTML='this.options.maxZoom)?this.setZoom(t):this},panInsideBounds:function(t,i){this._enforcingBounds=!0;var e=this.getCenter(),n=this._limitCenter(e,this._zoom,z(t));return e.equals(n)||this.panTo(n,i),this._enforcingBounds=!1,this},invalidateSize:function(t){if(!this._loaded)return this;t=i({animate:!1,pan:!0},!0===t?{animate:!0}:t);var n=this.getSize();this._sizeChanged=!0,this._lastCenter=null;var o=this.getSize(),s=n.divideBy(2).round(),r=o.divideBy(2).round(),a=s.subtract(r);return a.x||a.y?(t.animate&&t.pan?this.panBy(a):(t.pan&&this._rawPanBy(a),this.fire("move"),t.debounceMoveend?(clearTimeout(this._sizeTimer),this._sizeTimer=setTimeout(e(this.fire,this,"moveend"),200)):this.fire("moveend")),this.fire("resize",{oldSize:n,newSize:o})):this},stop:function(){return this.setZoom(this._limitZoom(this._zoom)),this.options.zoomSnap||this.fire("viewreset"),this._stop()},locate:function(t){if(t=this._locateOptions=i({timeout:1e4,watch:!1},t),!("geolocation"in navigator))return this._handleGeolocationError({code:0,message:"Geolocation not supported."}),this;var n=e(this._handleGeolocationResponse,this),o=e(this._handleGeolocationError,this);return t.watch?this._locationWatchId=navigator.geolocation.watchPosition(n,o,t):navigator.geolocation.getCurrentPosition(n,o,t),this},stopLocate:function(){return navigator.geolocation&&navigator.geolocation.clearWatch&&navigator.geolocation.clearWatch(this._locationWatchId),this._locateOptions&&(this._locateOptions.setView=!1),this},_handleGeolocationError:function(t){var i=t.code,e=t.message||(1===i?"permission denied":2===i?"position unavailable":"timeout");this._locateOptions.setView&&!this._loaded&&this.fitWorld(),this.fire("locationerror",{code:i,message:"Geolocation error: "+e+"."})},_handleGeolocationResponse:function(t){var i=new M(t.coords.latitude,t.coords.longitude),e=i.toBounds(t.coords.accuracy),n=this._locateOptions;if(n.setView){var o=this.getBoundsZoom(e);this.setView(i,n.maxZoom?Math.min(o,n.maxZoom):o)}var s={latlng:i,bounds:e,timestamp:t.timestamp};for(var r in t.coords)"number"==typeof t.coords[r]&&(s[r]=t.coords[r]);this.fire("locationfound",s)},addHandler:function(t,i){if(!i)return this;var e=this[t]=new i(this);return this._handlers.push(e),this.options[t]&&e.enable(),this},remove:function(){if(this._initEvents(!0),this._containerId!==this._container._leaflet_id)throw new Error("Map container is being reused by another instance");try{delete this._container._leaflet_id,delete this._containerId}catch(t){this._container._leaflet_id=void 0,this._containerId=void 0}void 0!==this._locationWatchId&&this.stopLocate(),this._stop(),ut(this._mapPane),this._clearControlPos&&this._clearControlPos(),this._clearHandlers(),this._loaded&&this.fire("unload");var t;for(t in this._layers)this._layers[t].remove();for(t in this._panes)ut(this._panes[t]);return this._layers=[],this._panes=[],delete this._mapPane,delete this._renderer,this},createPane:function(t,i){var e=ht("div","leaflet-pane"+(t?" leaflet-"+t.replace("Pane","")+"-pane":""),i||this._mapPane);return t&&(this._panes[t]=e),e},getCenter:function(){return this._checkIfLoaded(),this._lastCenter&&!this._moved()?this._lastCenter:this.layerPointToLatLng(this._getCenterLayerPoint())},getZoom:function(){return this._zoom},getBounds:function(){var t=this.getPixelBounds();return new T(this.unproject(t.getBottomLeft()),this.unproject(t.getTopRight()))},getMinZoom:function(){return void 0===this.options.minZoom?this._layersMinZoom||0:this.options.minZoom},getMaxZoom:function(){return void 0===this.options.maxZoom?void 0===this._layersMaxZoom?1/0:this._layersMaxZoom:this.options.maxZoom},getBoundsZoom:function(t,i,e){t=z(t),e=w(e||[0,0]);var n=this.getZoom()||0,o=this.getMinZoom(),s=this.getMaxZoom(),r=t.getNorthWest(),a=t.getSouthEast(),h=this.getSize().subtract(e),u=b(this.project(a,n),this.project(r,n)).getSize(),l=Ni?this.options.zoomSnap:1,c=h.x/u.x,_=h.y/u.y,d=i?Math.max(c,_):Math.min(c,_);return n=this.getScaleZoom(d,n),l&&(n=Math.round(n/(l/100))*(l/100),n=i?Math.ceil(n/l)*l:Math.floor(n/l)*l),Math.max(o,Math.min(s,n))},getSize:function(){return this._size&&!this._sizeChanged||(this._size=new x(this._container.clientWidth||0,this._container.clientHeight||0),this._sizeChanged=!1),this._size.clone()},getPixelBounds:function(t,i){var e=this._getTopLeftPoint(t,i);return new P(e,e.add(this.getSize()))},getPixelOrigin:function(){return this._checkIfLoaded(),this._pixelOrigin},getPixelWorldBounds:function(t){return this.options.crs.getProjectedBounds(void 0===t?this.getZoom():t)},getPane:function(t){return"string"==typeof t?this._panes[t]:t},getPanes:function(){return this._panes},getContainer:function(){return this._container},getZoomScale:function(t,i){var e=this.options.crs;return i=void 0===i?this._zoom:i,e.scale(t)/e.scale(i)},getScaleZoom:function(t,i){var e=this.options.crs;i=void 0===i?this._zoom:i;var n=e.zoom(t*e.scale(i));return isNaN(n)?1/0:n},project:function(t,i){return i=void 0===i?this._zoom:i,this.options.crs.latLngToPoint(C(t),i)},unproject:function(t,i){return i=void 0===i?this._zoom:i,this.options.crs.pointToLatLng(w(t),i)},layerPointToLatLng:function(t){var i=w(t).add(this.getPixelOrigin());return this.unproject(i)},latLngToLayerPoint:function(t){return this.project(C(t))._round()._subtract(this.getPixelOrigin())},wrapLatLng:function(t){return this.options.crs.wrapLatLng(C(t))},wrapLatLngBounds:function(t){return this.options.crs.wrapLatLngBounds(z(t))},distance:function(t,i){return this.options.crs.distance(C(t),C(i))},containerPointToLayerPoint:function(t){return w(t).subtract(this._getMapPanePos())},layerPointToContainerPoint:function(t){return w(t).add(this._getMapPanePos())},containerPointToLatLng:function(t){var i=this.containerPointToLayerPoint(w(t));return this.layerPointToLatLng(i)},latLngToContainerPoint:function(t){return this.layerPointToContainerPoint(this.latLngToLayerPoint(C(t)))},mouseEventToContainerPoint:function(t){return tt(t,this._container)},mouseEventToLayerPoint:function(t){return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(t))},mouseEventToLatLng:function(t){return this.layerPointToLatLng(this.mouseEventToLayerPoint(t))},_initContainer:function(t){var i=this._container=rt(t);if(!i)throw new Error("Map container not found.");if(i._leaflet_id)throw new Error("Map container is already initialized.");V(i,"scroll",this._onScroll,this),this._containerId=n(i)},_initLayout:function(){var t=this._container;this._fadeAnimated=this.options.fadeAnimation&&Ni,pt(t,"leaflet-container"+(Vi?" leaflet-touch":"")+(Ki?" leaflet-retina":"")+(Li?" leaflet-oldie":"")+(ki?" leaflet-safari":"")+(this._fadeAnimated?" leaflet-fade-anim":""));var i=at(t,"position");"absolute"!==i&&"relative"!==i&&"fixed"!==i&&(t.style.position="relative"),this._initPanes(),this._initControlPos&&this._initControlPos()},_initPanes:function(){var t=this._panes={};this._paneRenderers={},this._mapPane=this.createPane("mapPane",this._container),Lt(this._mapPane,new x(0,0)),this.createPane("tilePane"),this.createPane("shadowPane"),this.createPane("overlayPane"),this.createPane("markerPane"),this.createPane("tooltipPane"),this.createPane("popupPane"),this.options.markerZoomAnimation||(pt(t.markerPane,"leaflet-zoom-hide"),pt(t.shadowPane,"leaflet-zoom-hide"))},_resetView:function(t,i){Lt(this._mapPane,new x(0,0));var e=!this._loaded;this._loaded=!0,i=this._limitZoom(i),this.fire("viewprereset");var n=this._zoom!==i;this._moveStart(n,!1)._move(t,i)._moveEnd(n),this.fire("viewreset"),e&&this.fire("load")},_moveStart:function(t,i){return t&&this.fire("zoomstart"),i||this.fire("movestart"),this},_move:function(t,i,e){void 0===i&&(i=this._zoom);var n=this._zoom!==i;return this._zoom=i,this._lastCenter=t,this._pixelOrigin=this._getNewPixelOrigin(t),(n||e&&e.pinch)&&this.fire("zoom",e),this.fire("move",e)},_moveEnd:function(t){return t&&this.fire("zoomend"),this.fire("moveend")},_stop:function(){return g(this._flyToFrame),this._panAnim&&this._panAnim.stop(),this},_rawPanBy:function(t){Lt(this._mapPane,this._getMapPanePos().subtract(t))},_getZoomSpan:function(){return this.getMaxZoom()-this.getMinZoom()},_panInsideMaxBounds:function(){this._enforcingBounds||this.panInsideBounds(this.options.maxBounds)},_checkIfLoaded:function(){if(!this._loaded)throw new Error("Set map center and zoom first.")},_initEvents:function(t){this._targets={},this._targets[n(this._container)]=this;var i=t?q:V;i(this._container,"click dblclick mousedown mouseup mouseover mouseout mousemove contextmenu keypress",this._handleDOMEvent,this),this.options.trackResize&&i(window,"resize",this._onResize,this),Ni&&this.options.transform3DLimit&&(t?this.off:this.on).call(this,"moveend",this._onMoveEnd)},_onResize:function(){g(this._resizeRequest),this._resizeRequest=f(function(){this.invalidateSize({debounceMoveend:!0})},this)},_onScroll:function(){this._container.scrollTop=0,this._container.scrollLeft=0},_onMoveEnd:function(){var t=this._getMapPanePos();Math.max(Math.abs(t.x),Math.abs(t.y))>=this.options.transform3DLimit&&this._resetView(this.getCenter(),this.getZoom())},_findEventTargets:function(t,i){for(var e,o=[],s="mouseout"===i||"mouseover"===i,r=t.target||t.srcElement,a=!1;r;){if((e=this._targets[n(r)])&&("click"===i||"preclick"===i)&&!t._simulated&&this._draggableMoved(e)){a=!0;break}if(e&&e.listens(i,!0)){if(s&&!ot(r,t))break;if(o.push(e),s)break}if(r===this._container)break;r=r.parentNode}return o.length||a||s||!ot(r,t)||(o=[this]),o},_handleDOMEvent:function(t){if(this._loaded&&!nt(t)){var i=t.type;"mousedown"!==i&&"keypress"!==i||zt(t.target||t.srcElement),this._fireDOMEvent(t,i)}},_mouseEvents:["click","dblclick","mouseover","mouseout","contextmenu"],_fireDOMEvent:function(t,e,n){if("click"===t.type){var o=i({},t);o.type="preclick",this._fireDOMEvent(o,o.type,n)}if(!t._stopped&&(n=(n||[]).concat(this._findEventTargets(t,e))).length){var s=n[0];"contextmenu"===e&&s.listens(e,!0)&&$(t);var r={originalEvent:t};if("keypress"!==t.type){var a=s.getLatLng&&(!s._radius||s._radius<=10);r.containerPoint=a?this.latLngToContainerPoint(s.getLatLng()):this.mouseEventToContainerPoint(t),r.layerPoint=this.containerPointToLayerPoint(r.containerPoint),r.latlng=a?s.getLatLng():this.layerPointToLatLng(r.layerPoint)}for(var h=0;h0?Math.round(t-i)/2:Math.max(0,Math.ceil(t))-Math.max(0,Math.floor(i))},_limitZoom:function(t){var i=this.getMinZoom(),e=this.getMaxZoom(),n=Ni?this.options.zoomSnap:1;return n&&(t=Math.round(t/n)*n),Math.max(i,Math.min(e,t))},_onPanTransitionStep:function(){this.fire("move")},_onPanTransitionEnd:function(){mt(this._mapPane,"leaflet-pan-anim"),this.fire("moveend")},_tryAnimatedPan:function(t,i){var e=this._getCenterOffset(t)._trunc();return!(!0!==(i&&i.animate)&&!this.getSize().contains(e))&&(this.panBy(e,i),!0)},_createAnimProxy:function(){var t=this._proxy=ht("div","leaflet-proxy leaflet-zoom-animated");this._panes.mapPane.appendChild(t),this.on("zoomanim",function(t){var i=pe,e=this._proxy.style[i];wt(this._proxy,this.project(t.center,t.zoom),this.getZoomScale(t.zoom,1)),e===this._proxy.style[i]&&this._animatingZoom&&this._onZoomTransitionEnd()},this),this.on("load moveend",function(){var t=this.getCenter(),i=this.getZoom();wt(this._proxy,this.project(t,i),this.getZoomScale(i,1))},this),this._on("unload",this._destroyAnimProxy,this)},_destroyAnimProxy:function(){ut(this._proxy),delete this._proxy},_catchTransitionEnd:function(t){this._animatingZoom&&t.propertyName.indexOf("transform")>=0&&this._onZoomTransitionEnd()},_nothingToAnimate:function(){return!this._container.getElementsByClassName("leaflet-zoom-animated").length},_tryAnimatedZoom:function(t,i,e){if(this._animatingZoom)return!0;if(e=e||{},!this._zoomAnimated||!1===e.animate||this._nothingToAnimate()||Math.abs(i-this._zoom)>this.options.zoomAnimationThreshold)return!1;var n=this.getZoomScale(i),o=this._getCenterOffset(t)._divideBy(1-1/n);return!(!0!==e.animate&&!this.getSize().contains(o))&&(f(function(){this._moveStart(!0,!1)._animateZoom(t,i,!0)},this),!0)},_animateZoom:function(t,i,n,o){this._mapPane&&(n&&(this._animatingZoom=!0,this._animateToCenter=t,this._animateToZoom=i,pt(this._mapPane,"leaflet-zoom-anim")),this.fire("zoomanim",{center:t,zoom:i,noUpdate:o}),setTimeout(e(this._onZoomTransitionEnd,this),250))},_onZoomTransitionEnd:function(){this._animatingZoom&&(this._mapPane&&mt(this._mapPane,"leaflet-zoom-anim"),this._animatingZoom=!1,this._move(this._animateToCenter,this._animateToZoom),f(function(){this._moveEnd(!0)},this))}}),Pe=v.extend({options:{position:"topright"},initialize:function(t){l(this,t)},getPosition:function(){return this.options.position},setPosition:function(t){var i=this._map;return i&&i.removeControl(this),this.options.position=t,i&&i.addControl(this),this},getContainer:function(){return this._container},addTo:function(t){this.remove(),this._map=t;var i=this._container=this.onAdd(t),e=this.getPosition(),n=t._controlCorners[e];return pt(i,"leaflet-control"),-1!==e.indexOf("bottom")?n.insertBefore(i,n.firstChild):n.appendChild(i),this},remove:function(){return this._map?(ut(this._container),this.onRemove&&this.onRemove(this._map),this._map=null,this):this},_refocusOnMap:function(t){this._map&&t&&t.screenX>0&&t.screenY>0&&this._map.getContainer().focus()}}),be=function(t){return new Pe(t)};Le.include({addControl:function(t){return t.addTo(this),this},removeControl:function(t){return t.remove(),this},_initControlPos:function(){function t(t,o){var s=e+t+" "+e+o;i[t+o]=ht("div",s,n)}var i=this._controlCorners={},e="leaflet-",n=this._controlContainer=ht("div",e+"control-container",this._container);t("top","left"),t("top","right"),t("bottom","left"),t("bottom","right")},_clearControlPos:function(){for(var t in this._controlCorners)ut(this._controlCorners[t]);ut(this._controlContainer),delete this._controlCorners,delete this._controlContainer}});var Te=Pe.extend({options:{collapsed:!0,position:"topright",autoZIndex:!0,hideSingleBase:!1,sortLayers:!1,sortFunction:function(t,i,e,n){return e1,this._baseLayersList.style.display=t?"":"none"),this._separator.style.display=i&&t?"":"none",this},_onLayerChange:function(t){this._handlingClick||this._update();var i=this._getLayer(n(t.target)),e=i.overlay?"add"===t.type?"overlayadd":"overlayremove":"add"===t.type?"baselayerchange":null;e&&this._map.fire(e,i)},_createRadioElement:function(t,i){var e='=0;o--)t=e[o],i=this._getLayer(t.layerId).layer,t.disabled=void 0!==i.options.minZoom&&ni.options.maxZoom},_expandIfNotCollapsed:function(){return this._map&&!this.options.collapsed&&this.expand(),this},_expand:function(){return this.expand()},_collapse:function(){return this.collapse()}}),ze=Pe.extend({options:{position:"topleft",zoomInText:"+",zoomInTitle:"Zoom in",zoomOutText:"−",zoomOutTitle:"Zoom out"},onAdd:function(t){var i="leaflet-control-zoom",e=ht("div",i+" leaflet-bar"),n=this.options;return this._zoomInButton=this._createButton(n.zoomInText,n.zoomInTitle,i+"-in",e,this._zoomIn),this._zoomOutButton=this._createButton(n.zoomOutText,n.zoomOutTitle,i+"-out",e,this._zoomOut),this._updateDisabled(),t.on("zoomend zoomlevelschange",this._updateDisabled,this),e},onRemove:function(t){t.off("zoomend zoomlevelschange",this._updateDisabled,this)},disable:function(){return this._disabled=!0,this._updateDisabled(),this},enable:function(){return this._disabled=!1,this._updateDisabled(),this},_zoomIn:function(t){!this._disabled&&this._map._zoomthis._map.getMinZoom()&&this._map.zoomOut(this._map.options.zoomDelta*(t.shiftKey?3:1))},_createButton:function(t,i,e,n,o){var s=ht("a",e,n);return s.innerHTML=t,s.href="#",s.title=i,s.setAttribute("role","button"),s.setAttribute("aria-label",i),J(s),V(s,"click",Q),V(s,"click",o,this),V(s,"click",this._refocusOnMap,this),s},_updateDisabled:function(){var t=this._map,i="leaflet-disabled";mt(this._zoomInButton,i),mt(this._zoomOutButton,i),(this._disabled||t._zoom===t.getMinZoom())&&pt(this._zoomOutButton,i),(this._disabled||t._zoom===t.getMaxZoom())&&pt(this._zoomInButton,i)}});Le.mergeOptions({zoomControl:!0}),Le.addInitHook(function(){this.options.zoomControl&&(this.zoomControl=new ze,this.addControl(this.zoomControl))});var Me=Pe.extend({options:{position:"bottomleft",maxWidth:100,metric:!0,imperial:!0},onAdd:function(t){var i=ht("div","leaflet-control-scale"),e=this.options;return this._addScales(e,"leaflet-control-scale-line",i),t.on(e.updateWhenIdle?"moveend":"move",this._update,this),t.whenReady(this._update,this),i},onRemove:function(t){t.off(this.options.updateWhenIdle?"moveend":"move",this._update,this)},_addScales:function(t,i,e){t.metric&&(this._mScale=ht("div",i,e)),t.imperial&&(this._iScale=ht("div",i,e))},_update:function(){var t=this._map,i=t.getSize().y/2,e=t.distance(t.containerPointToLatLng([0,i]),t.containerPointToLatLng([this.options.maxWidth,i]));this._updateScales(e)},_updateScales:function(t){this.options.metric&&t&&this._updateMetric(t),this.options.imperial&&t&&this._updateImperial(t)},_updateMetric:function(t){var i=this._getRoundNum(t),e=i<1e3?i+" m":i/1e3+" km";this._updateScale(this._mScale,e,i/t)},_updateImperial:function(t){var i,e,n,o=3.2808399*t;o>5280?(i=o/5280,e=this._getRoundNum(i),this._updateScale(this._iScale,e+" mi",e/i)):(n=this._getRoundNum(o),this._updateScale(this._iScale,n+" ft",n/o))},_updateScale:function(t,i,e){t.style.width=Math.round(this.options.maxWidth*e)+"px",t.innerHTML=i},_getRoundNum:function(t){var i=Math.pow(10,(Math.floor(t)+"").length-1),e=t/i;return e=e>=10?10:e>=5?5:e>=3?3:e>=2?2:1,i*e}}),Ce=Pe.extend({options:{position:"bottomright",prefix:'Leaflet '},initialize:function(t){l(this,t),this._attributions={}},onAdd:function(t){t.attributionControl=this,this._container=ht("div","leaflet-control-attribution"),J(this._container);for(var i in t._layers)t._layers[i].getAttribution&&this.addAttribution(t._layers[i].getAttribution());return this._update(),this._container},setPrefix:function(t){return this.options.prefix=t,this._update(),this},addAttribution:function(t){return t?(this._attributions[t]||(this._attributions[t]=0),this._attributions[t]++,this._update(),this):this},removeAttribution:function(t){return t?(this._attributions[t]&&(this._attributions[t]--,this._update()),this):this},_update:function(){if(this._map){var t=[];for(var i in this._attributions)this._attributions[i]&&t.push(i);var e=[];this.options.prefix&&e.push(this.options.prefix),t.length&&e.push(t.join(", ")),this._container.innerHTML=e.join(" | ")}}});Le.mergeOptions({attributionControl:!0}),Le.addInitHook(function(){this.options.attributionControl&&(new Ce).addTo(this)});Pe.Layers=Te,Pe.Zoom=ze,Pe.Scale=Me,Pe.Attribution=Ce,be.layers=function(t,i,e){return new Te(t,i,e)},be.zoom=function(t){return new ze(t)},be.scale=function(t){return new Me(t)},be.attribution=function(t){return new Ce(t)};var Ze=v.extend({initialize:function(t){this._map=t},enable:function(){return this._enabled?this:(this._enabled=!0,this.addHooks(),this)},disable:function(){return this._enabled?(this._enabled=!1,this.removeHooks(),this):this},enabled:function(){return!!this._enabled}});Ze.addTo=function(t,i){return t.addHandler(i,this),this};var Se,Ee={Events:hi},ke=Vi?"touchstart mousedown":"mousedown",Ae={mousedown:"mouseup",touchstart:"touchend",pointerdown:"touchend",MSPointerDown:"touchend"},Ie={mousedown:"mousemove",touchstart:"touchmove",pointerdown:"touchmove",MSPointerDown:"touchmove"},Be=ui.extend({options:{clickTolerance:3},initialize:function(t,i,e,n){l(this,n),this._element=t,this._dragStartTarget=i||t,this._preventOutline=e},enable:function(){this._enabled||(V(this._dragStartTarget,ke,this._onDown,this),this._enabled=!0)},disable:function(){this._enabled&&(Be._dragging===this&&this.finishDrag(),q(this._dragStartTarget,ke,this._onDown,this),this._enabled=!1,this._moved=!1)},_onDown:function(t){if(!t._simulated&&this._enabled&&(this._moved=!1,!dt(this._element,"leaflet-zoom-anim")&&!(Be._dragging||t.shiftKey||1!==t.which&&1!==t.button&&!t.touches||(Be._dragging=this,this._preventOutline&&zt(this._element),bt(),mi(),this._moving)))){this.fire("down");var i=t.touches?t.touches[0]:t;this._startPoint=new x(i.clientX,i.clientY),V(document,Ie[t.type],this._onMove,this),V(document,Ae[t.type],this._onUp,this)}},_onMove:function(t){if(!t._simulated&&this._enabled)if(t.touches&&t.touches.length>1)this._moved=!0;else{var i=t.touches&&1===t.touches.length?t.touches[0]:t,e=new x(i.clientX,i.clientY).subtract(this._startPoint);(e.x||e.y)&&(Math.abs(e.x)+Math.abs(e.y)1e-7;h++)i=s*Math.sin(a),i=Math.pow((1-i)/(1+i),s/2),a+=u=Math.PI/2-2*Math.atan(r*i)-a;return new M(a*e,t.x*e/n)}},je=(Object.freeze||Object)({LonLat:De,Mercator:Ne,SphericalMercator:di}),We=i({},_i,{code:"EPSG:3395",projection:Ne,transformation:function(){var t=.5/(Math.PI*Ne.R);return S(t,.5,-t,.5)}()}),He=i({},_i,{code:"EPSG:4326",projection:De,transformation:S(1/180,1,-1/180,.5)}),Fe=i({},ci,{projection:De,transformation:S(1,0,-1,0),scale:function(t){return Math.pow(2,t)},zoom:function(t){return Math.log(t)/Math.LN2},distance:function(t,i){var e=i.lng-t.lng,n=i.lat-t.lat;return Math.sqrt(e*e+n*n)},infinite:!0});ci.Earth=_i,ci.EPSG3395=We,ci.EPSG3857=vi,ci.EPSG900913=yi,ci.EPSG4326=He,ci.Simple=Fe;var Ue=ui.extend({options:{pane:"overlayPane",attribution:null,bubblingMouseEvents:!0},addTo:function(t){return t.addLayer(this),this},remove:function(){return this.removeFrom(this._map||this._mapToAdd)},removeFrom:function(t){return t&&t.removeLayer(this),this},getPane:function(t){return this._map.getPane(t?this.options[t]||t:this.options.pane)},addInteractiveTarget:function(t){return this._map._targets[n(t)]=this,this},removeInteractiveTarget:function(t){return delete this._map._targets[n(t)],this},getAttribution:function(){return this.options.attribution},_layerAdd:function(t){var i=t.target;if(i.hasLayer(this)){if(this._map=i,this._zoomAnimated=i._zoomAnimated,this.getEvents){var e=this.getEvents();i.on(e,this),this.once("remove",function(){i.off(e,this)},this)}this.onAdd(i),this.getAttribution&&i.attributionControl&&i.attributionControl.addAttribution(this.getAttribution()),this.fire("add"),i.fire("layeradd",{layer:this})}}});Le.include({addLayer:function(t){if(!t._layerAdd)throw new Error("The provided object is not a Layer.");var i=n(t);return this._layers[i]?this:(this._layers[i]=t,t._mapToAdd=this,t.beforeAdd&&t.beforeAdd(this),this.whenReady(t._layerAdd,t),this)},removeLayer:function(t){var i=n(t);return this._layers[i]?(this._loaded&&t.onRemove(this),t.getAttribution&&this.attributionControl&&this.attributionControl.removeAttribution(t.getAttribution()),delete this._layers[i],this._loaded&&(this.fire("layerremove",{layer:t}),t.fire("remove")),t._map=t._mapToAdd=null,this):this},hasLayer:function(t){return!!t&&n(t)in this._layers},eachLayer:function(t,i){for(var e in this._layers)t.call(i,this._layers[e]);return this},_addLayers:function(t){for(var i=0,e=(t=t?ei(t)?t:[t]:[]).length;ithis._layersMaxZoom&&this.setZoom(this._layersMaxZoom),void 0===this.options.minZoom&&this._layersMinZoom&&this.getZoom()i)return r=(n-i)/e,this._map.layerPointToLatLng([s.x-r*(s.x-o.x),s.y-r*(s.y-o.y)])},getBounds:function(){return this._bounds},addLatLng:function(t,i){return i=i||this._defaultShape(),t=C(t),i.push(t),this._bounds.extend(t),this.redraw()},_setLatLngs:function(t){this._bounds=new T,this._latlngs=this._convertLatLngs(t)},_defaultShape:function(){return Dt(this._latlngs)?this._latlngs:this._latlngs[0]},_convertLatLngs:function(t){for(var i=[],e=Dt(t),n=0,o=t.length;n=2&&i[0]instanceof M&&i[0].equals(i[e-1])&&i.pop(),i},_setLatLngs:function(t){tn.prototype._setLatLngs.call(this,t),Dt(this._latlngs)&&(this._latlngs=[this._latlngs])},_defaultShape:function(){return Dt(this._latlngs[0])?this._latlngs[0]:this._latlngs[0][0]},_clipPoints:function(){var t=this._renderer._bounds,i=this.options.weight,e=new x(i,i);if(t=new P(t.min.subtract(e),t.max.add(e)),this._parts=[],this._pxBounds&&this._pxBounds.intersects(t))if(this.options.noClip)this._parts=this._rings;else for(var n,o=0,s=this._rings.length;ot.y!=n.y>t.y&&t.x<(n.x-e.x)*(t.y-e.y)/(n.y-e.y)+e.x&&(u=!u);return u||tn.prototype._containsPoint.call(this,t,!0)}}),nn=qe.extend({initialize:function(t,i){l(this,i),this._layers={},t&&this.addData(t)},addData:function(t){var i,e,n,o=ei(t)?t:t.features;if(o){for(i=0,e=o.length;i0?o:[i.src]}else{ei(this._url)||(this._url=[this._url]),i.autoplay=!!this.options.autoplay,i.loop=!!this.options.loop;for(var a=0;ao?(i.height=o+"px",pt(t,"leaflet-popup-scrolled")):mt(t,"leaflet-popup-scrolled"),this._containerWidth=this._container.offsetWidth},_animateZoom:function(t){var i=this._map._latLngToNewLayerPoint(this._latlng,t.zoom,t.center),e=this._getAnchor();Lt(this._container,i.add(e))},_adjustPan:function(){if(!(!this.options.autoPan||this._map._panAnim&&this._map._panAnim._inProgress)){var t=this._map,i=parseInt(at(this._container,"marginBottom"),10)||0,e=this._container.offsetHeight+i,n=this._containerWidth,o=new x(this._containerLeft,-e-this._containerBottom);o._add(Pt(this._container));var s=t.layerPointToContainerPoint(o),r=w(this.options.autoPanPadding),a=w(this.options.autoPanPaddingTopLeft||r),h=w(this.options.autoPanPaddingBottomRight||r),u=t.getSize(),l=0,c=0;s.x+n+h.x>u.x&&(l=s.x+n-u.x+h.x),s.x-l-a.x<0&&(l=s.x-a.x),s.y+e+h.y>u.y&&(c=s.y+e-u.y+h.y),s.y-c-a.y<0&&(c=s.y-a.y),(l||c)&&t.fire("autopanstart").panBy([l,c])}},_onCloseButtonClick:function(t){this._close(),Q(t)},_getAnchor:function(){return w(this._source&&this._source._getPopupAnchor?this._source._getPopupAnchor():[0,0])}});Le.mergeOptions({closePopupOnClick:!0}),Le.include({openPopup:function(t,i,e){return t instanceof un||(t=new un(e).setContent(t)),i&&t.setLatLng(i),this.hasLayer(t)?this:(this._popup&&this._popup.options.autoClose&&this.closePopup(),this._popup=t,this.addLayer(t))},closePopup:function(t){return t&&t!==this._popup||(t=this._popup,this._popup=null),t&&this.removeLayer(t),this}}),Ue.include({bindPopup:function(t,i){return t instanceof un?(l(t,i),this._popup=t,t._source=this):(this._popup&&!i||(this._popup=new un(i,this)),this._popup.setContent(t)),this._popupHandlersAdded||(this.on({click:this._openPopup,keypress:this._onKeyPress,remove:this.closePopup,move:this._movePopup}),this._popupHandlersAdded=!0),this},unbindPopup:function(){return this._popup&&(this.off({click:this._openPopup,keypress:this._onKeyPress,remove:this.closePopup,move:this._movePopup}),this._popupHandlersAdded=!1,this._popup=null),this},openPopup:function(t,i){if(t instanceof Ue||(i=t,t=this),t instanceof qe)for(var e in this._layers){t=this._layers[e];break}return i||(i=t.getCenter?t.getCenter():t.getLatLng()),this._popup&&this._map&&(this._popup._source=t,this._popup.update(),this._map.openPopup(this._popup,i)),this},closePopup:function(){return this._popup&&this._popup._close(),this},togglePopup:function(t){return this._popup&&(this._popup._map?this.closePopup():this.openPopup(t)),this},isPopupOpen:function(){return!!this._popup&&this._popup.isOpen()},setPopupContent:function(t){return this._popup&&this._popup.setContent(t),this},getPopup:function(){return this._popup},_openPopup:function(t){var i=t.layer||t.target;this._popup&&this._map&&(Q(t),i instanceof Je?this.openPopup(t.layer||t.target,t.latlng):this._map.hasLayer(this._popup)&&this._popup._source===i?this.closePopup():this.openPopup(i,t.latlng))},_movePopup:function(t){this._popup.setLatLng(t.latlng)},_onKeyPress:function(t){13===t.originalEvent.keyCode&&this._openPopup(t)}});var ln=hn.extend({options:{pane:"tooltipPane",offset:[0,0],direction:"auto",permanent:!1,sticky:!1,interactive:!1,opacity:.9},onAdd:function(t){hn.prototype.onAdd.call(this,t),this.setOpacity(this.options.opacity),t.fire("tooltipopen",{tooltip:this}),this._source&&this._source.fire("tooltipopen",{tooltip:this},!0)},onRemove:function(t){hn.prototype.onRemove.call(this,t),t.fire("tooltipclose",{tooltip:this}),this._source&&this._source.fire("tooltipclose",{tooltip:this},!0)},getEvents:function(){var t=hn.prototype.getEvents.call(this);return Vi&&!this.options.permanent&&(t.preclick=this._close),t},_close:function(){this._map&&this._map.closeTooltip(this)},_initLayout:function(){var t="leaflet-tooltip "+(this.options.className||"")+" leaflet-zoom-"+(this._zoomAnimated?"animated":"hide");this._contentNode=this._container=ht("div",t)},_updateLayout:function(){},_adjustPan:function(){},_setPosition:function(t){var i=this._map,e=this._container,n=i.latLngToContainerPoint(i.getCenter()),o=i.layerPointToContainerPoint(t),s=this.options.direction,r=e.offsetWidth,a=e.offsetHeight,h=w(this.options.offset),u=this._getAnchor();"top"===s?t=t.add(w(-r/2+h.x,-a+h.y+u.y,!0)):"bottom"===s?t=t.subtract(w(r/2-h.x,-h.y,!0)):"center"===s?t=t.subtract(w(r/2+h.x,a/2-u.y+h.y,!0)):"right"===s||"auto"===s&&o.xthis.options.maxZoom||en&&this._retainParent(o,s,r,n))},_retainChildren:function(t,i,e,n){for(var o=2*t;o<2*t+2;o++)for(var s=2*i;s<2*i+2;s++){var r=new x(o,s);r.z=e+1;var a=this._tileCoordsToKey(r),h=this._tiles[a];h&&h.active?h.retain=!0:(h&&h.loaded&&(h.retain=!0),e+1this.options.maxZoom||void 0!==this.options.minZoom&&o1)this._setView(t,e);else{for(var c=o.min.y;c<=o.max.y;c++)for(var _=o.min.x;_<=o.max.x;_++){var d=new x(_,c);if(d.z=this._tileZoom,this._isValidTile(d)){var p=this._tiles[this._tileCoordsToKey(d)];p?p.current=!0:r.push(d)}}if(r.sort(function(t,i){return t.distanceTo(s)-i.distanceTo(s)}),0!==r.length){this._loading||(this._loading=!0,this.fire("loading"));var m=document.createDocumentFragment();for(_=0;_e.max.x)||!i.wrapLat&&(t.ye.max.y))return!1}if(!this.options.bounds)return!0;var n=this._tileCoordsToBounds(t);return z(this.options.bounds).overlaps(n)},_keyToBounds:function(t){return this._tileCoordsToBounds(this._keyToTileCoords(t))},_tileCoordsToNwSe:function(t){var i=this._map,e=this.getTileSize(),n=t.scaleBy(e),o=n.add(e);return[i.unproject(n,t.z),i.unproject(o,t.z)]},_tileCoordsToBounds:function(t){var i=this._tileCoordsToNwSe(t),e=new T(i[0],i[1]);return this.options.noWrap||(e=this._map.wrapLatLngBounds(e)),e},_tileCoordsToKey:function(t){return t.x+":"+t.y+":"+t.z},_keyToTileCoords:function(t){var i=t.split(":"),e=new x(+i[0],+i[1]);return e.z=+i[2],e},_removeTile:function(t){var i=this._tiles[t];i&&(Ci||i.el.setAttribute("src",ni),ut(i.el),delete this._tiles[t],this.fire("tileunload",{tile:i.el,coords:this._keyToTileCoords(t)}))},_initTile:function(t){pt(t,"leaflet-tile");var i=this.getTileSize();t.style.width=i.x+"px",t.style.height=i.y+"px",t.onselectstart=r,t.onmousemove=r,Li&&this.options.opacity<1&&vt(t,this.options.opacity),Ti&&!zi&&(t.style.WebkitBackfaceVisibility="hidden")},_addTile:function(t,i){var n=this._getTilePos(t),o=this._tileCoordsToKey(t),s=this.createTile(this._wrapCoords(t),e(this._tileReady,this,t));this._initTile(s),this.createTile.length<2&&f(e(this._tileReady,this,t,null,s)),Lt(s,n),this._tiles[o]={el:s,coords:t,current:!0},i.appendChild(s),this.fire("tileloadstart",{tile:s,coords:t})},_tileReady:function(t,i,n){if(this._map){i&&this.fire("tileerror",{error:i,tile:n,coords:t});var o=this._tileCoordsToKey(t);(n=this._tiles[o])&&(n.loaded=+new Date,this._map._fadeAnimated?(vt(n.el,0),g(this._fadeFrame),this._fadeFrame=f(this._updateOpacity,this)):(n.active=!0,this._pruneTiles()),i||(pt(n.el,"leaflet-tile-loaded"),this.fire("tileload",{tile:n.el,coords:t})),this._noTilesToLoad()&&(this._loading=!1,this.fire("load"),Li||!this._map._fadeAnimated?f(this._pruneTiles,this):setTimeout(e(this._pruneTiles,this),250)))}},_getTilePos:function(t){return t.scaleBy(this.getTileSize()).subtract(this._level.origin)},_wrapCoords:function(t){var i=new x(this._wrapX?s(t.x,this._wrapX):t.x,this._wrapY?s(t.y,this._wrapY):t.y);return i.z=t.z,i},_pxBoundsToTileRange:function(t){var i=this.getTileSize();return new P(t.min.unscaleBy(i).floor(),t.max.unscaleBy(i).ceil().subtract([1,1]))},_noTilesToLoad:function(){for(var t in this._tiles)if(!this._tiles[t].loaded)return!1;return!0}}),dn=_n.extend({options:{minZoom:0,maxZoom:18,subdomains:"abc",errorTileUrl:"",zoomOffset:0,tms:!1,zoomReverse:!1,detectRetina:!1,crossOrigin:!1},initialize:function(t,i){this._url=t,(i=l(this,i)).detectRetina&&Ki&&i.maxZoom>0&&(i.tileSize=Math.floor(i.tileSize/2),i.zoomReverse?(i.zoomOffset--,i.minZoom++):(i.zoomOffset++,i.maxZoom--),i.minZoom=Math.max(0,i.minZoom)),"string"==typeof i.subdomains&&(i.subdomains=i.subdomains.split("")),Ti||this.on("tileunload",this._onTileRemove)},setUrl:function(t,i){return this._url=t,i||this.redraw(),this},createTile:function(t,i){var n=document.createElement("img");return V(n,"load",e(this._tileOnLoad,this,i,n)),V(n,"error",e(this._tileOnError,this,i,n)),this.options.crossOrigin&&(n.crossOrigin=""),n.alt="",n.setAttribute("role","presentation"),n.src=this.getTileUrl(t),n},getTileUrl:function(t){var e={r:Ki?"@2x":"",s:this._getSubdomain(t),x:t.x,y:t.y,z:this._getZoomForUrl()};if(this._map&&!this._map.options.crs.infinite){var n=this._globalTileRange.max.y-t.y;this.options.tms&&(e.y=n),e["-y"]=n}return _(this._url,i(e,this.options))},_tileOnLoad:function(t,i){Li?setTimeout(e(t,this,null,i),0):t(null,i)},_tileOnError:function(t,i,e){var n=this.options.errorTileUrl;n&&i.getAttribute("src")!==n&&(i.src=n),t(e,i)},_onTileRemove:function(t){t.tile.onload=null},_getZoomForUrl:function(){var t=this._tileZoom,i=this.options.maxZoom,e=this.options.zoomReverse,n=this.options.zoomOffset;return e&&(t=i-t),t+n},_getSubdomain:function(t){var i=Math.abs(t.x+t.y)%this.options.subdomains.length;return this.options.subdomains[i]},_abortLoading:function(){var t,i;for(t in this._tiles)this._tiles[t].coords.z!==this._tileZoom&&((i=this._tiles[t].el).onload=r,i.onerror=r,i.complete||(i.src=ni,ut(i),delete this._tiles[t]))}}),pn=dn.extend({defaultWmsParams:{service:"WMS",request:"GetMap",layers:"",styles:"",format:"image/jpeg",transparent:!1,version:"1.1.1"},options:{crs:null,uppercase:!1},initialize:function(t,e){this._url=t;var n=i({},this.defaultWmsParams);for(var o in e)o in this.options||(n[o]=e[o]);var s=(e=l(this,e)).detectRetina&&Ki?2:1,r=this.getTileSize();n.width=r.x*s,n.height=r.y*s,this.wmsParams=n},onAdd:function(t){this._crs=this.options.crs||t.options.crs,this._wmsVersion=parseFloat(this.wmsParams.version);var i=this._wmsVersion>=1.3?"crs":"srs";this.wmsParams[i]=this._crs.code,dn.prototype.onAdd.call(this,t)},getTileUrl:function(t){var i=this._tileCoordsToNwSe(t),e=this._crs,n=b(e.project(i[0]),e.project(i[1])),o=n.min,s=n.max,r=(this._wmsVersion>=1.3&&this._crs===He?[o.y,o.x,s.y,s.x]:[o.x,o.y,s.x,s.y]).join(","),a=L.TileLayer.prototype.getTileUrl.call(this,t);return a+c(this.wmsParams,a,this.options.uppercase)+(this.options.uppercase?"&BBOX=":"&bbox=")+r},setParams:function(t,e){return i(this.wmsParams,t),e||this.redraw(),this}});dn.WMS=pn,Yt.wms=function(t,i){return new pn(t,i)};var mn=Ue.extend({options:{padding:.1,tolerance:0},initialize:function(t){l(this,t),n(this),this._layers=this._layers||{}},onAdd:function(){this._container||(this._initContainer(),this._zoomAnimated&&pt(this._container,"leaflet-zoom-animated")),this.getPane().appendChild(this._container),this._update(),this.on("update",this._updatePaths,this)},onRemove:function(){this.off("update",this._updatePaths,this),this._destroyContainer()},getEvents:function(){var t={viewreset:this._reset,zoom:this._onZoom,moveend:this._update,zoomend:this._onZoomEnd};return this._zoomAnimated&&(t.zoomanim=this._onAnimZoom),t},_onAnimZoom:function(t){this._updateTransform(t.center,t.zoom)},_onZoom:function(){this._updateTransform(this._map.getCenter(),this._map.getZoom())},_updateTransform:function(t,i){var e=this._map.getZoomScale(i,this._zoom),n=Pt(this._container),o=this._map.getSize().multiplyBy(.5+this.options.padding),s=this._map.project(this._center,i),r=this._map.project(t,i).subtract(s),a=o.multiplyBy(-e).add(n).add(o).subtract(r);Ni?wt(this._container,a,e):Lt(this._container,a)},_reset:function(){this._update(),this._updateTransform(this._center,this._zoom);for(var t in this._layers)this._layers[t]._reset()},_onZoomEnd:function(){for(var t in this._layers)this._layers[t]._project()},_updatePaths:function(){for(var t in this._layers)this._layers[t]._update()},_update:function(){var t=this.options.padding,i=this._map.getSize(),e=this._map.containerPointToLayerPoint(i.multiplyBy(-t)).round();this._bounds=new P(e,e.add(i.multiplyBy(1+2*t)).round()),this._center=this._map.getCenter(),this._zoom=this._map.getZoom()}}),fn=mn.extend({getEvents:function(){var t=mn.prototype.getEvents.call(this);return t.viewprereset=this._onViewPreReset,t},_onViewPreReset:function(){this._postponeUpdatePaths=!0},onAdd:function(){mn.prototype.onAdd.call(this),this._draw()},_initContainer:function(){var t=this._container=document.createElement("canvas");V(t,"mousemove",o(this._onMouseMove,32,this),this),V(t,"click dblclick mousedown mouseup contextmenu",this._onClick,this),V(t,"mouseout",this._handleMouseOut,this),this._ctx=t.getContext("2d")},_destroyContainer:function(){delete this._ctx,ut(this._container),q(this._container),delete this._container},_updatePaths:function(){if(!this._postponeUpdatePaths){this._redrawBounds=null;for(var t in this._layers)this._layers[t]._update();this._redraw()}},_update:function(){if(!this._map._animatingZoom||!this._bounds){this._drawnLayers={},mn.prototype._update.call(this);var t=this._bounds,i=this._container,e=t.getSize(),n=Ki?2:1;Lt(i,t.min),i.width=n*e.x,i.height=n*e.y,i.style.width=e.x+"px",i.style.height=e.y+"px",Ki&&this._ctx.scale(2,2),this._ctx.translate(-t.min.x,-t.min.y),this.fire("update")}},_reset:function(){mn.prototype._reset.call(this),this._postponeUpdatePaths&&(this._postponeUpdatePaths=!1,this._updatePaths())},_initPath:function(t){this._updateDashArray(t),this._layers[n(t)]=t;var i=t._order={layer:t,prev:this._drawLast,next:null};this._drawLast&&(this._drawLast.next=i),this._drawLast=i,this._drawFirst=this._drawFirst||this._drawLast},_addPath:function(t){this._requestRedraw(t)},_removePath:function(t){var i=t._order,e=i.next,n=i.prev;e?e.prev=n:this._drawLast=n,n?n.next=e:this._drawFirst=e,delete t._order,delete this._layers[L.stamp(t)],this._requestRedraw(t)},_updatePath:function(t){this._extendRedrawBounds(t),t._project(),t._update(),this._requestRedraw(t)},_updateStyle:function(t){this._updateDashArray(t),this._requestRedraw(t)},_updateDashArray:function(t){if(t.options.dashArray){var i,e=t.options.dashArray.split(","),n=[];for(i=0;i')}}catch(t){return function(t){return document.createElement("<"+t+' xmlns="urn:schemas-microsoft.com:vml" class="lvml">')}}}(),vn={_initContainer:function(){this._container=ht("div","leaflet-vml-container")},_update:function(){this._map._animatingZoom||(mn.prototype._update.call(this),this.fire("update"))},_initPath:function(t){var i=t._container=gn("shape");pt(i,"leaflet-vml-shape "+(this.options.className||"")),i.coordsize="1 1",t._path=gn("path"),i.appendChild(t._path),this._updateStyle(t),this._layers[n(t)]=t},_addPath:function(t){var i=t._container;this._container.appendChild(i),t.options.interactive&&t.addInteractiveTarget(i)},_removePath:function(t){var i=t._container;ut(i),t.removeInteractiveTarget(i),delete this._layers[n(t)]},_updateStyle:function(t){var i=t._stroke,e=t._fill,n=t.options,o=t._container;o.stroked=!!n.stroke,o.filled=!!n.fill,n.stroke?(i||(i=t._stroke=gn("stroke")),o.appendChild(i),i.weight=n.weight+"px",i.color=n.color,i.opacity=n.opacity,n.dashArray?i.dashStyle=ei(n.dashArray)?n.dashArray.join(" "):n.dashArray.replace(/( *, *)/g," "):i.dashStyle="",i.endcap=n.lineCap.replace("butt","flat"),i.joinstyle=n.lineJoin):i&&(o.removeChild(i),t._stroke=null),n.fill?(e||(e=t._fill=gn("fill")),o.appendChild(e),e.color=n.fillColor||n.color,e.opacity=n.fillOpacity):e&&(o.removeChild(e),t._fill=null)},_updateCircle:function(t){var i=t._point.round(),e=Math.round(t._radius),n=Math.round(t._radiusY||e);this._setPath(t,t._empty()?"M0 0":"AL "+i.x+","+i.y+" "+e+","+n+" 0,23592600")},_setPath:function(t,i){t._path.v=i},_bringToFront:function(t){ct(t._container)},_bringToBack:function(t){_t(t._container)}},yn=Ji?gn:E,xn=mn.extend({getEvents:function(){var t=mn.prototype.getEvents.call(this);return t.zoomstart=this._onZoomStart,t},_initContainer:function(){this._container=yn("svg"),this._container.setAttribute("pointer-events","none"),this._rootGroup=yn("g"),this._container.appendChild(this._rootGroup)},_destroyContainer:function(){ut(this._container),q(this._container),delete this._container,delete this._rootGroup,delete this._svgSize},_onZoomStart:function(){this._update()},_update:function(){if(!this._map._animatingZoom||!this._bounds){mn.prototype._update.call(this);var t=this._bounds,i=t.getSize(),e=this._container;this._svgSize&&this._svgSize.equals(i)||(this._svgSize=i,e.setAttribute("width",i.x),e.setAttribute("height",i.y)),Lt(e,t.min),e.setAttribute("viewBox",[t.min.x,t.min.y,i.x,i.y].join(" ")),this.fire("update")}},_initPath:function(t){var i=t._path=yn("path");t.options.className&&pt(i,t.options.className),t.options.interactive&&pt(i,"leaflet-interactive"),this._updateStyle(t),this._layers[n(t)]=t},_addPath:function(t){this._rootGroup||this._initContainer(),this._rootGroup.appendChild(t._path),t.addInteractiveTarget(t._path)},_removePath:function(t){ut(t._path),t.removeInteractiveTarget(t._path),delete this._layers[n(t)]},_updatePath:function(t){t._project(),t._update()},_updateStyle:function(t){var i=t._path,e=t.options;i&&(e.stroke?(i.setAttribute("stroke",e.color),i.setAttribute("stroke-opacity",e.opacity),i.setAttribute("stroke-width",e.weight),i.setAttribute("stroke-linecap",e.lineCap),i.setAttribute("stroke-linejoin",e.lineJoin),e.dashArray?i.setAttribute("stroke-dasharray",e.dashArray):i.removeAttribute("stroke-dasharray"),e.dashOffset?i.setAttribute("stroke-dashoffset",e.dashOffset):i.removeAttribute("stroke-dashoffset")):i.setAttribute("stroke","none"),e.fill?(i.setAttribute("fill",e.fillColor||e.color),i.setAttribute("fill-opacity",e.fillOpacity),i.setAttribute("fill-rule",e.fillRule||"evenodd")):i.setAttribute("fill","none"))},_updatePoly:function(t,i){this._setPath(t,k(t._parts,i))},_updateCircle:function(t){var i=t._point,e=Math.max(Math.round(t._radius),1),n="a"+e+","+(Math.max(Math.round(t._radiusY),1)||e)+" 0 1,0 ",o=t._empty()?"M0 0":"M"+(i.x-e)+","+i.y+n+2*e+",0 "+n+2*-e+",0 ";this._setPath(t,o)},_setPath:function(t,i){t._path.setAttribute("d",i)},_bringToFront:function(t){ct(t._path)},_bringToBack:function(t){_t(t._path)}});Ji&&xn.include(vn),Le.include({getRenderer:function(t){var i=t.options.renderer||this._getPaneRenderer(t.options.pane)||this.options.renderer||this._renderer;return i||(i=this._renderer=this.options.preferCanvas&&Xt()||Jt()),this.hasLayer(i)||this.addLayer(i),i},_getPaneRenderer:function(t){if("overlayPane"===t||void 0===t)return!1;var i=this._paneRenderers[t];return void 0===i&&(i=xn&&Jt({pane:t})||fn&&Xt({pane:t}),this._paneRenderers[t]=i),i}});var wn=en.extend({initialize:function(t,i){en.prototype.initialize.call(this,this._boundsToLatLngs(t),i)},setBounds:function(t){return this.setLatLngs(this._boundsToLatLngs(t))},_boundsToLatLngs:function(t){return t=z(t),[t.getSouthWest(),t.getNorthWest(),t.getNorthEast(),t.getSouthEast()]}});xn.create=yn,xn.pointsToPath=k,nn.geometryToLayer=Wt,nn.coordsToLatLng=Ht,nn.coordsToLatLngs=Ft,nn.latLngToCoords=Ut,nn.latLngsToCoords=Vt,nn.getFeature=qt,nn.asFeature=Gt,Le.mergeOptions({boxZoom:!0});var Ln=Ze.extend({initialize:function(t){this._map=t,this._container=t._container,this._pane=t._panes.overlayPane,this._resetStateTimeout=0,t.on("unload",this._destroy,this)},addHooks:function(){V(this._container,"mousedown",this._onMouseDown,this)},removeHooks:function(){q(this._container,"mousedown",this._onMouseDown,this)},moved:function(){return this._moved},_destroy:function(){ut(this._pane),delete this._pane},_resetState:function(){this._resetStateTimeout=0,this._moved=!1},_clearDeferredResetState:function(){0!==this._resetStateTimeout&&(clearTimeout(this._resetStateTimeout),this._resetStateTimeout=0)},_onMouseDown:function(t){if(!t.shiftKey||1!==t.which&&1!==t.button)return!1;this._clearDeferredResetState(),this._resetState(),mi(),bt(),this._startPoint=this._map.mouseEventToContainerPoint(t),V(document,{contextmenu:Q,mousemove:this._onMouseMove,mouseup:this._onMouseUp,keydown:this._onKeyDown},this)},_onMouseMove:function(t){this._moved||(this._moved=!0,this._box=ht("div","leaflet-zoom-box",this._container),pt(this._container,"leaflet-crosshair"),this._map.fire("boxzoomstart")),this._point=this._map.mouseEventToContainerPoint(t);var i=new P(this._point,this._startPoint),e=i.getSize();Lt(this._box,i.min),this._box.style.width=e.x+"px",this._box.style.height=e.y+"px"},_finish:function(){this._moved&&(ut(this._box),mt(this._container,"leaflet-crosshair")),fi(),Tt(),q(document,{contextmenu:Q,mousemove:this._onMouseMove,mouseup:this._onMouseUp,keydown:this._onKeyDown},this)},_onMouseUp:function(t){if((1===t.which||1===t.button)&&(this._finish(),this._moved)){this._clearDeferredResetState(),this._resetStateTimeout=setTimeout(e(this._resetState,this),0);var i=new T(this._map.containerPointToLatLng(this._startPoint),this._map.containerPointToLatLng(this._point));this._map.fitBounds(i).fire("boxzoomend",{boxZoomBounds:i})}},_onKeyDown:function(t){27===t.keyCode&&this._finish()}});Le.addInitHook("addHandler","boxZoom",Ln),Le.mergeOptions({doubleClickZoom:!0});var Pn=Ze.extend({addHooks:function(){this._map.on("dblclick",this._onDoubleClick,this)},removeHooks:function(){this._map.off("dblclick",this._onDoubleClick,this)},_onDoubleClick:function(t){var i=this._map,e=i.getZoom(),n=i.options.zoomDelta,o=t.originalEvent.shiftKey?e-n:e+n;"center"===i.options.doubleClickZoom?i.setZoom(o):i.setZoomAround(t.containerPoint,o)}});Le.addInitHook("addHandler","doubleClickZoom",Pn),Le.mergeOptions({dragging:!0,inertia:!zi,inertiaDeceleration:3400,inertiaMaxSpeed:1/0,easeLinearity:.2,worldCopyJump:!1,maxBoundsViscosity:0});var bn=Ze.extend({addHooks:function(){if(!this._draggable){var t=this._map;this._draggable=new Be(t._mapPane,t._container),this._draggable.on({dragstart:this._onDragStart,drag:this._onDrag,dragend:this._onDragEnd},this),this._draggable.on("predrag",this._onPreDragLimit,this),t.options.worldCopyJump&&(this._draggable.on("predrag",this._onPreDragWrap,this),t.on("zoomend",this._onZoomEnd,this),t.whenReady(this._onZoomEnd,this))}pt(this._map._container,"leaflet-grab leaflet-touch-drag"),this._draggable.enable(),this._positions=[],this._times=[]},removeHooks:function(){mt(this._map._container,"leaflet-grab"),mt(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 t=this._map;if(t._stop(),this._map.options.maxBounds&&this._map.options.maxBoundsViscosity){var i=z(this._map.options.maxBounds);this._offsetLimit=b(this._map.latLngToContainerPoint(i.getNorthWest()).multiplyBy(-1),this._map.latLngToContainerPoint(i.getSouthEast()).multiplyBy(-1).add(this._map.getSize())),this._viscosity=Math.min(1,Math.max(0,this._map.options.maxBoundsViscosity))}else this._offsetLimit=null;t.fire("movestart").fire("dragstart"),t.options.inertia&&(this._positions=[],this._times=[])},_onDrag:function(t){if(this._map.options.inertia){var i=this._lastTime=+new Date,e=this._lastPos=this._draggable._absPos||this._draggable._newPos;this._positions.push(e),this._times.push(i),this._prunePositions(i)}this._map.fire("move",t).fire("drag",t)},_prunePositions:function(t){for(;this._positions.length>1&&t-this._times[0]>50;)this._positions.shift(),this._times.shift()},_onZoomEnd:function(){var t=this._map.getSize().divideBy(2),i=this._map.latLngToLayerPoint([0,0]);this._initialWorldOffset=i.subtract(t).x,this._worldWidth=this._map.getPixelWorldBounds().getSize().x},_viscousLimit:function(t,i){return t-(t-i)*this._viscosity},_onPreDragLimit:function(){if(this._viscosity&&this._offsetLimit){var t=this._draggable._newPos.subtract(this._draggable._startPos),i=this._offsetLimit;t.xi.max.x&&(t.x=this._viscousLimit(t.x,i.max.x)),t.y>i.max.y&&(t.y=this._viscousLimit(t.y,i.max.y)),this._draggable._newPos=this._draggable._startPos.add(t)}},_onPreDragWrap:function(){var t=this._worldWidth,i=Math.round(t/2),e=this._initialWorldOffset,n=this._draggable._newPos.x,o=(n-i+e)%t+i-e,s=(n+i+e)%t-i-e,r=Math.abs(o+e)0?s:-s))-i;this._delta=0,this._startTime=null,r&&("center"===t.options.scrollWheelZoom?t.setZoom(i+r):t.setZoomAround(this._lastMousePos,i+r))}});Le.addInitHook("addHandler","scrollWheelZoom",zn),Le.mergeOptions({tap:!0,tapTolerance:15});var Mn=Ze.extend({addHooks:function(){V(this._map._container,"touchstart",this._onDown,this)},removeHooks:function(){q(this._map._container,"touchstart",this._onDown,this)},_onDown:function(t){if(t.touches){if($(t),this._fireClick=!0,t.touches.length>1)return this._fireClick=!1,void clearTimeout(this._holdTimeout);var i=t.touches[0],n=i.target;this._startPos=this._newPos=new x(i.clientX,i.clientY),n.tagName&&"a"===n.tagName.toLowerCase()&&pt(n,"leaflet-active"),this._holdTimeout=setTimeout(e(function(){this._isTapValid()&&(this._fireClick=!1,this._onUp(),this._simulateEvent("contextmenu",i))},this),1e3),this._simulateEvent("mousedown",i),V(document,{touchmove:this._onMove,touchend:this._onUp},this)}},_onUp:function(t){if(clearTimeout(this._holdTimeout),q(document,{touchmove:this._onMove,touchend:this._onUp},this),this._fireClick&&t&&t.changedTouches){var i=t.changedTouches[0],e=i.target;e&&e.tagName&&"a"===e.tagName.toLowerCase()&&mt(e,"leaflet-active"),this._simulateEvent("mouseup",i),this._isTapValid()&&this._simulateEvent("click",i)}},_isTapValid:function(){return this._newPos.distanceTo(this._startPos)<=this._map.options.tapTolerance},_onMove:function(t){var i=t.touches[0];this._newPos=new x(i.clientX,i.clientY),this._simulateEvent("mousemove",i)},_simulateEvent:function(t,i){var e=document.createEvent("MouseEvents");e._simulated=!0,i.target._simulatedClick=!0,e.initMouseEvent(t,!0,!0,window,1,i.screenX,i.screenY,i.clientX,i.clientY,!1,!1,!1,!1,0,null),i.target.dispatchEvent(e)}});Vi&&!Ui&&Le.addInitHook("addHandler","tap",Mn),Le.mergeOptions({touchZoom:Vi&&!zi,bounceAtZoomLimits:!0});var Cn=Ze.extend({addHooks:function(){pt(this._map._container,"leaflet-touch-zoom"),V(this._map._container,"touchstart",this._onTouchStart,this)},removeHooks:function(){mt(this._map._container,"leaflet-touch-zoom"),q(this._map._container,"touchstart",this._onTouchStart,this)},_onTouchStart:function(t){var i=this._map;if(t.touches&&2===t.touches.length&&!i._animatingZoom&&!this._zooming){var e=i.mouseEventToContainerPoint(t.touches[0]),n=i.mouseEventToContainerPoint(t.touches[1]);this._centerPoint=i.getSize()._divideBy(2),this._startLatLng=i.containerPointToLatLng(this._centerPoint),"center"!==i.options.touchZoom&&(this._pinchStartLatLng=i.containerPointToLatLng(e.add(n)._divideBy(2))),this._startDist=e.distanceTo(n),this._startZoom=i.getZoom(),this._moved=!1,this._zooming=!0,i._stop(),V(document,"touchmove",this._onTouchMove,this),V(document,"touchend",this._onTouchEnd,this),$(t)}},_onTouchMove:function(t){if(t.touches&&2===t.touches.length&&this._zooming){var i=this._map,n=i.mouseEventToContainerPoint(t.touches[0]),o=i.mouseEventToContainerPoint(t.touches[1]),s=n.distanceTo(o)/this._startDist;if(this._zoom=i.getScaleZoom(s,this._startZoom),!i.options.bounceAtZoomLimits&&(this._zoomi.getMaxZoom()&&s>1)&&(this._zoom=i._limitZoom(this._zoom)),"center"===i.options.touchZoom){if(this._center=this._startLatLng,1===s)return}else{var r=n._add(o)._divideBy(2)._subtract(this._centerPoint);if(1===s&&0===r.x&&0===r.y)return;this._center=i.unproject(i.project(this._pinchStartLatLng,this._zoom).subtract(r),this._zoom)}this._moved||(i._moveStart(!0,!1),this._moved=!0),g(this._animRequest);var a=e(i._move,i,this._center,this._zoom,{pinch:!0,round:!1});this._animRequest=f(a,this,!0),$(t)}},_onTouchEnd:function(){this._moved&&this._zooming?(this._zooming=!1,g(this._animRequest),q(document,"touchmove",this._onTouchMove),q(document,"touchend",this._onTouchEnd),this._map.options.zoomAnimation?this._map._animateZoom(this._center,this._map._limitZoom(this._zoom),!0,this._map.options.zoomSnap):this._map._resetView(this._center,this._map._limitZoom(this._zoom))):this._zooming=!1}});Le.addInitHook("addHandler","touchZoom",Cn),Le.BoxZoom=Ln,Le.DoubleClickZoom=Pn,Le.Drag=bn,Le.Keyboard=Tn,Le.ScrollWheelZoom=zn,Le.Tap=Mn,Le.TouchZoom=Cn;var Zn=window.L;window.L=t,Object.freeze=$t,t.version="1.3.1+HEAD.ba6f97f",t.noConflict=function(){return window.L=Zn,this},t.Control=Pe,t.control=be,t.Browser=$i,t.Evented=ui,t.Mixin=Ee,t.Util=ai,t.Class=v,t.Handler=Ze,t.extend=i,t.bind=e,t.stamp=n,t.setOptions=l,t.DomEvent=de,t.DomUtil=xe,t.PosAnimation=we,t.Draggable=Be,t.LineUtil=Oe,t.PolyUtil=Re,t.Point=x,t.point=w,t.Bounds=P,t.bounds=b,t.Transformation=Z,t.transformation=S,t.Projection=je,t.LatLng=M,t.latLng=C,t.LatLngBounds=T,t.latLngBounds=z,t.CRS=ci,t.GeoJSON=nn,t.geoJSON=Kt,t.geoJson=sn,t.Layer=Ue,t.LayerGroup=Ve,t.layerGroup=function(t,i){return new Ve(t,i)},t.FeatureGroup=qe,t.featureGroup=function(t){return new qe(t)},t.ImageOverlay=rn,t.imageOverlay=function(t,i,e){return new rn(t,i,e)},t.VideoOverlay=an,t.videoOverlay=function(t,i,e){return new an(t,i,e)},t.DivOverlay=hn,t.Popup=un,t.popup=function(t,i){return new un(t,i)},t.Tooltip=ln,t.tooltip=function(t,i){return new ln(t,i)},t.Icon=Ge,t.icon=function(t){return new Ge(t)},t.DivIcon=cn,t.divIcon=function(t){return new cn(t)},t.Marker=Xe,t.marker=function(t,i){return new Xe(t,i)},t.TileLayer=dn,t.tileLayer=Yt,t.GridLayer=_n,t.gridLayer=function(t){return new _n(t)},t.SVG=xn,t.svg=Jt,t.Renderer=mn,t.Canvas=fn,t.canvas=Xt,t.Path=Je,t.CircleMarker=$e,t.circleMarker=function(t,i){return new $e(t,i)},t.Circle=Qe,t.circle=function(t,i,e){return new Qe(t,i,e)},t.Polyline=tn,t.polyline=function(t,i){return new tn(t,i)},t.Polygon=en,t.polygon=function(t,i){return new en(t,i)},t.Rectangle=wn,t.rectangle=function(t,i){return new wn(t,i)},t.Map=Le,t.map=function(t,i){return new Le(t,i)}});
\ No newline at end of file
diff --git a/dev/articles/extending_files/leaflet-binding-2.2.2.9000/leaflet.js b/dev/articles/extending_files/leaflet-binding-2.2.2.9000/leaflet.js
new file mode 100644
index 000000000..79dbe714a
--- /dev/null
+++ b/dev/articles/extending_files/leaflet-binding-2.2.2.9000/leaflet.js
@@ -0,0 +1,2787 @@
+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i this.effectiveLength) throw new Error("Row argument was out of bounds: " + row + " > " + this.effectiveLength);
+ var colIndex = -1;
+
+ if (typeof col === "undefined") {
+ var rowData = {};
+ this.colnames.forEach(function (name, i) {
+ rowData[name] = _this3.columns[i][row % _this3.columns[i].length];
+ });
+ return rowData;
+ } else if (typeof col === "string") {
+ colIndex = this._colIndex(col);
+ } else if (typeof col === "number") {
+ colIndex = col;
+ }
+
+ if (colIndex < 0 || colIndex > this.columns.length) {
+ if (missingOK) return void 0;else throw new Error("Unknown column index: " + col);
+ }
+
+ return this.columns[colIndex][row % this.columns[colIndex].length];
+ }
+ }, {
+ key: "nrow",
+ value: function nrow() {
+ return this.effectiveLength;
+ }
+ }]);
+
+ return DataFrame;
+}();
+
+exports["default"] = DataFrame;
+
+
+},{"./util":17}],5:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// In RMarkdown's self-contained mode, we don't have a way to carry around the
+// images that Leaflet needs but doesn't load into the page. Instead, we'll use
+// the unpkg CDN.
+if (typeof _leaflet2["default"].Icon.Default.imagePath === "undefined") {
+ _leaflet2["default"].Icon.Default.imagePath = "https://unpkg.com/leaflet@1.3.1/dist/images/";
+}
+
+
+},{"./global/leaflet":10}],6:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// add texxtsize, textOnly, and style
+_leaflet2["default"].Tooltip.prototype.options.textsize = "10px";
+_leaflet2["default"].Tooltip.prototype.options.textOnly = false;
+_leaflet2["default"].Tooltip.prototype.options.style = null; // copy original layout to not completely stomp it.
+
+var initLayoutOriginal = _leaflet2["default"].Tooltip.prototype._initLayout;
+
+_leaflet2["default"].Tooltip.prototype._initLayout = function () {
+ initLayoutOriginal.call(this);
+ this._container.style.fontSize = this.options.textsize;
+
+ if (this.options.textOnly) {
+ _leaflet2["default"].DomUtil.addClass(this._container, "leaflet-tooltip-text-only");
+ }
+
+ if (this.options.style) {
+ for (var property in this.options.style) {
+ this._container.style[property] = this.options.style[property];
+ }
+ }
+};
+
+
+},{"./global/leaflet":10}],7:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var protocolRegex = /^\/\//;
+
+var upgrade_protocol = function upgrade_protocol(urlTemplate) {
+ if (protocolRegex.test(urlTemplate)) {
+ if (window.location.protocol === "file:") {
+ // if in a local file, support http
+ // http should auto upgrade if necessary
+ urlTemplate = "http:" + urlTemplate;
+ }
+ }
+
+ return urlTemplate;
+};
+
+var originalLTileLayerInitialize = _leaflet2["default"].TileLayer.prototype.initialize;
+
+_leaflet2["default"].TileLayer.prototype.initialize = function (urlTemplate, options) {
+ urlTemplate = upgrade_protocol(urlTemplate);
+ originalLTileLayerInitialize.call(this, urlTemplate, options);
+};
+
+var originalLTileLayerWMSInitialize = _leaflet2["default"].TileLayer.WMS.prototype.initialize;
+
+_leaflet2["default"].TileLayer.WMS.prototype.initialize = function (urlTemplate, options) {
+ urlTemplate = upgrade_protocol(urlTemplate);
+ originalLTileLayerWMSInitialize.call(this, urlTemplate, options);
+};
+
+
+},{"./global/leaflet":10}],8:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = global.HTMLWidgets;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],9:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = global.jQuery;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],10:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = global.L;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],11:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = global.L.Proj;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],12:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = global.Shiny;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],13:[function(require,module,exports){
+"use strict";
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _shiny = require("./global/shiny");
+
+var _shiny2 = _interopRequireDefault(_shiny);
+
+var _htmlwidgets = require("./global/htmlwidgets");
+
+var _htmlwidgets2 = _interopRequireDefault(_htmlwidgets);
+
+var _util = require("./util");
+
+var _crs_utils = require("./crs_utils");
+
+var _controlStore = require("./control-store");
+
+var _controlStore2 = _interopRequireDefault(_controlStore);
+
+var _layerManager = require("./layer-manager");
+
+var _layerManager2 = _interopRequireDefault(_layerManager);
+
+var _methods = require("./methods");
+
+var _methods2 = _interopRequireDefault(_methods);
+
+require("./fixup-default-icon");
+
+require("./fixup-default-tooltip");
+
+require("./fixup-url-protocol");
+
+var _dataframe = require("./dataframe");
+
+var _dataframe2 = _interopRequireDefault(_dataframe);
+
+var _clusterLayerStore = require("./cluster-layer-store");
+
+var _clusterLayerStore2 = _interopRequireDefault(_clusterLayerStore);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+window.LeafletWidget = {};
+window.LeafletWidget.utils = {};
+
+var methods = window.LeafletWidget.methods = _jquery2["default"].extend({}, _methods2["default"]);
+
+window.LeafletWidget.DataFrame = _dataframe2["default"];
+window.LeafletWidget.ClusterLayerStore = _clusterLayerStore2["default"];
+window.LeafletWidget.utils.getCRS = _crs_utils.getCRS; // Send updated bounds back to app. Takes a leaflet event object as input.
+
+function updateBounds(map) {
+ var id = map.getContainer().id;
+ var bounds = map.getBounds();
+
+ _shiny2["default"].onInputChange(id + "_bounds", {
+ north: bounds.getNorthEast().lat,
+ east: bounds.getNorthEast().lng,
+ south: bounds.getSouthWest().lat,
+ west: bounds.getSouthWest().lng
+ });
+
+ _shiny2["default"].onInputChange(id + "_center", {
+ lng: map.getCenter().lng,
+ lat: map.getCenter().lat
+ });
+
+ _shiny2["default"].onInputChange(id + "_zoom", map.getZoom());
+}
+
+function preventUnintendedZoomOnScroll(map) {
+ // Prevent unwanted scroll capturing. Similar in purpose to
+ // https://github.com/CliffCloud/Leaflet.Sleep but with a
+ // different set of heuristics.
+ // The basic idea is that when a mousewheel/DOMMouseScroll
+ // event is seen, we disable scroll wheel zooming until the
+ // user moves their mouse cursor or clicks on the map. This
+ // is slightly trickier than just listening for mousemove,
+ // because mousemove is fired when the page is scrolled,
+ // even if the user did not physically move the mouse. We
+ // handle this by examining the mousemove event's screenX
+ // and screenY properties; if they change, we know it's a
+ // "true" move.
+ // lastScreen can never be null, but its x and y can.
+ var lastScreen = {
+ x: null,
+ y: null
+ };
+ (0, _jquery2["default"])(document).on("mousewheel DOMMouseScroll", "*", function (e) {
+ // Disable zooming (until the mouse moves or click)
+ map.scrollWheelZoom.disable(); // Any mousemove events at this screen position will be ignored.
+
+ lastScreen = {
+ x: e.originalEvent.screenX,
+ y: e.originalEvent.screenY
+ };
+ });
+ (0, _jquery2["default"])(document).on("mousemove", "*", function (e) {
+ // Did the mouse really move?
+ if (map.options.scrollWheelZoom) {
+ if (lastScreen.x !== null && e.screenX !== lastScreen.x || e.screenY !== lastScreen.y) {
+ // It really moved. Enable zooming.
+ map.scrollWheelZoom.enable();
+ lastScreen = {
+ x: null,
+ y: null
+ };
+ }
+ }
+ });
+ (0, _jquery2["default"])(document).on("mousedown", ".leaflet", function (e) {
+ // Clicking always enables zooming.
+ if (map.options.scrollWheelZoom) {
+ map.scrollWheelZoom.enable();
+ lastScreen = {
+ x: null,
+ y: null
+ };
+ }
+ });
+}
+
+_htmlwidgets2["default"].widget({
+ name: "leaflet",
+ type: "output",
+ factory: function factory(el, width, height) {
+ var map = null;
+ return {
+ // we need to store our map in our returned object.
+ getMap: function getMap() {
+ return map;
+ },
+ renderValue: function renderValue(data) {
+ // Create an appropriate CRS Object if specified
+ if (data && data.options && data.options.crs) {
+ data.options.crs = (0, _crs_utils.getCRS)(data.options.crs);
+ } // As per https://github.com/rstudio/leaflet/pull/294#discussion_r79584810
+
+
+ if (map) {
+ map.remove();
+
+ map = function () {
+ return;
+ }(); // undefine map
+
+ }
+
+ if (data.options.mapFactory && typeof data.options.mapFactory === "function") {
+ map = data.options.mapFactory(el, data.options);
+ } else {
+ map = _leaflet2["default"].map(el, data.options);
+ }
+
+ preventUnintendedZoomOnScroll(map); // Store some state in the map object
+
+ map.leafletr = {
+ // Has the map ever rendered successfully?
+ hasRendered: false,
+ // Data to be rendered when resize is called with area != 0
+ pendingRenderData: null
+ }; // Check if the map is rendered statically (no output binding)
+
+ if (_htmlwidgets2["default"].shinyMode && /\bshiny-bound-output\b/.test(el.className)) {
+ map.id = el.id; // Store the map on the element so we can find it later by ID
+
+ (0, _jquery2["default"])(el).data("leaflet-map", map); // When the map is clicked, send the coordinates back to the app
+
+ map.on("click", function (e) {
+ _shiny2["default"].onInputChange(map.id + "_click", {
+ lat: e.latlng.lat,
+ lng: e.latlng.lng,
+ ".nonce": Math.random() // Force reactivity if lat/lng hasn't changed
+
+ });
+ });
+ var groupTimerId = null;
+ map.on("moveend", function (e) {
+ updateBounds(e.target);
+ }).on("layeradd layerremove", function (e) {
+ // If the layer that's coming or going is a group we created, tell
+ // the server.
+ if (map.layerManager.getGroupNameFromLayerGroup(e.layer)) {
+ // But to avoid chattiness, coalesce events
+ if (groupTimerId) {
+ clearTimeout(groupTimerId);
+ groupTimerId = null;
+ }
+
+ groupTimerId = setTimeout(function () {
+ groupTimerId = null;
+
+ _shiny2["default"].onInputChange(map.id + "_groups", map.layerManager.getVisibleGroups());
+ }, 100);
+ }
+ });
+ }
+
+ this.doRenderValue(data, map);
+ },
+ doRenderValue: function doRenderValue(data, map) {
+ // Leaflet does not behave well when you set up a bunch of layers when
+ // the map is not visible (width/height == 0). Popups get misaligned
+ // relative to their owning markers, and the fitBounds calculations
+ // are off. Therefore we wait until the map is actually showing to
+ // render the value (we rely on the resize() callback being invoked
+ // at the appropriate time).
+ if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+ map.leafletr.pendingRenderData = data;
+ return;
+ }
+
+ map.leafletr.pendingRenderData = null; // Merge data options into defaults
+
+ var options = _jquery2["default"].extend({
+ zoomToLimits: "always"
+ }, data.options);
+
+ if (!map.layerManager) {
+ map.controls = new _controlStore2["default"](map);
+ map.layerManager = new _layerManager2["default"](map);
+ } else {
+ map.controls.clear();
+ map.layerManager.clear();
+ }
+
+ var explicitView = false;
+
+ if (data.setView) {
+ explicitView = true;
+ map.setView.apply(map, data.setView);
+ }
+
+ if (data.fitBounds) {
+ explicitView = true;
+ methods.fitBounds.apply(map, data.fitBounds);
+ }
+
+ if (data.flyTo) {
+ if (!explicitView && !map.leafletr.hasRendered) {
+ // must be done to give a initial starting point
+ map.fitWorld();
+ }
+
+ explicitView = true;
+ map.flyTo.apply(map, data.flyTo);
+ }
+
+ if (data.flyToBounds) {
+ if (!explicitView && !map.leafletr.hasRendered) {
+ // must be done to give a initial starting point
+ map.fitWorld();
+ }
+
+ explicitView = true;
+ methods.flyToBounds.apply(map, data.flyToBounds);
+ }
+
+ if (data.options.center) {
+ explicitView = true;
+ } // Returns true if the zoomToLimits option says that the map should be
+ // zoomed to map elements.
+
+
+ function needsZoom() {
+ return options.zoomToLimits === "always" || options.zoomToLimits === "first" && !map.leafletr.hasRendered;
+ }
+
+ if (!explicitView && needsZoom() && !map.getZoom()) {
+ if (data.limits && !_jquery2["default"].isEmptyObject(data.limits)) {
+ // Use the natural limits of what's being drawn on the map
+ // If the size of the bounding box is 0, leaflet gets all weird
+ var pad = 0.006;
+
+ if (data.limits.lat[0] === data.limits.lat[1]) {
+ data.limits.lat[0] = data.limits.lat[0] - pad;
+ data.limits.lat[1] = data.limits.lat[1] + pad;
+ }
+
+ if (data.limits.lng[0] === data.limits.lng[1]) {
+ data.limits.lng[0] = data.limits.lng[0] - pad;
+ data.limits.lng[1] = data.limits.lng[1] + pad;
+ }
+
+ map.fitBounds([[data.limits.lat[0], data.limits.lng[0]], [data.limits.lat[1], data.limits.lng[1]]]);
+ } else {
+ map.fitWorld();
+ }
+ }
+
+ for (var i = 0; data.calls && i < data.calls.length; i++) {
+ var call = data.calls[i];
+ if (methods[call.method]) methods[call.method].apply(map, call.args);else (0, _util.log)("Unknown method " + call.method);
+ }
+
+ map.leafletr.hasRendered = true;
+
+ if (_htmlwidgets2["default"].shinyMode) {
+ setTimeout(function () {
+ updateBounds(map);
+ }, 1);
+ }
+ },
+ resize: function resize(width, height) {
+ if (map) {
+ map.invalidateSize();
+
+ if (map.leafletr.pendingRenderData) {
+ this.doRenderValue(map.leafletr.pendingRenderData, map);
+ }
+ }
+ }
+ };
+ }
+});
+
+if (_htmlwidgets2["default"].shinyMode) {
+ _shiny2["default"].addCustomMessageHandler("leaflet-calls", function (data) {
+ var id = data.id;
+ var el = document.getElementById(id);
+ var map = el ? (0, _jquery2["default"])(el).data("leaflet-map") : null;
+
+ if (!map) {
+ (0, _util.log)("Couldn't find map with id " + id);
+ return;
+ } // If the map has not rendered, stash the proposed `leafletProxy()` calls
+ // in `pendingRenderData.calls` to be run on display via `doRenderValue()`.
+ // This is necessary if the map has not been rendered.
+ // If new pendingRenderData is set via a new `leaflet()`, the previous calls will be discarded.
+
+
+ if (!map.leafletr.hasRendered) {
+ map.leafletr.pendingRenderData.calls = map.leafletr.pendingRenderData.calls.concat(data.calls);
+ return;
+ }
+
+ for (var i = 0; i < data.calls.length; i++) {
+ var call = data.calls[i];
+ var args = call.args;
+
+ for (var _i = 0; _i < call.evals.length; _i++) {
+ window.HTMLWidgets.evaluateStringMember(args, call.evals[_i]);
+ }
+
+ if (call.dependencies) {
+ _shiny2["default"].renderDependencies(call.dependencies);
+ }
+
+ if (methods[call.method]) methods[call.method].apply(map, args);else (0, _util.log)("Unknown method " + call.method);
+ }
+ });
+}
+
+
+},{"./cluster-layer-store":1,"./control-store":2,"./crs_utils":3,"./dataframe":4,"./fixup-default-icon":5,"./fixup-default-tooltip":6,"./fixup-url-protocol":7,"./global/htmlwidgets":8,"./global/jquery":9,"./global/leaflet":10,"./global/shiny":12,"./layer-manager":14,"./methods":15,"./util":17}],14:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports["default"] = undefined;
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _util = require("./util");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var LayerManager = /*#__PURE__*/function () {
+ function LayerManager(map) {
+ _classCallCheck(this, LayerManager);
+
+ this._map = map; // BEGIN layer indices
+ // {