From 5a17bfc9c9565a3215f2969182534fedaa6eba07 Mon Sep 17 00:00:00 2001
From: Marc Tobias Metten <mtmail@gmx.net>
Date: Thu, 14 Jun 2018 02:19:19 +0200
Subject: [PATCH] display viewbox on map

---
 lib/template/includes/html-footer.php | 1 +
 website/js/nominatim-ui.js            | 8 ++++++++
 website/js/url-search-params.js       | 2 ++
 3 files changed, 11 insertions(+)
 create mode 100644 website/js/url-search-params.js

diff --git a/lib/template/includes/html-footer.php b/lib/template/includes/html-footer.php
index e7d78cfa..1929c2d8 100644
--- a/lib/template/includes/html-footer.php
+++ b/lib/template/includes/html-footer.php
@@ -11,4 +11,5 @@
 <script src="js/bootstrap.min.js"></script>
 <script src="js/leaflet.min.js"></script>
 <script src="js/Control.Minimap.min.js"></script>
+<script src="js/url-search-params.js"></script>
 <script src="js/nominatim-ui.js"></script>
diff --git a/website/js/nominatim-ui.js b/website/js/nominatim-ui.js
index 64160c84..337ceb25 100644
--- a/website/js/nominatim-ui.js
+++ b/website/js/nominatim-ui.js
@@ -249,6 +249,14 @@ jQuery(document).ready(function(){
             $('form input[name=lon]').val(lat);
             $('form').submit();
         });
+    } else {
+        var search_params = new URLSearchParams(location.search);
+        var viewbox = search_params.get('viewbox');
+        if (viewbox) {
+            var coords = viewbox.split(','); // <x1>,<y1>,<x2>,<y2>
+            var bounds = L.latLngBounds([coords[1], coords[0]], [coords[3], coords[2]]);
+            L.rectangle(bounds, {color: "#69d53e", weight: 3, dashArray: '5 5', opacity: 0.8, fill: false}).addTo(map);
+        }
     }
 
     highlight_result(0, false);
diff --git a/website/js/url-search-params.js b/website/js/url-search-params.js
new file mode 100644
index 00000000..21335d21
--- /dev/null
+++ b/website/js/url-search-params.js
@@ -0,0 +1,2 @@
+/*! (C) Andrea Giammarchi - Mit Style License */
+var URLSearchParams=URLSearchParams||function(){"use strict";function URLSearchParams(query){var index,key,value,pairs,i,length,dict=Object.create(null);this[secret]=dict;if(!query)return;if(typeof query==="string"){if(query.charAt(0)==="?"){query=query.slice(1)}for(pairs=query.split("&"),i=0,length=pairs.length;i<length;i++){value=pairs[i];index=value.indexOf("=");if(-1<index){appendTo(dict,decode(value.slice(0,index)),decode(value.slice(index+1)))}else if(value.length){appendTo(dict,decode(value),"")}}}else{if(isArray(query)){for(i=0,length=query.length;i<length;i++){value=query[i];appendTo(dict,value[0],value[1])}}else{for(key in query){appendTo(dict,key,query[key])}}}}var isArray=Array.isArray,URLSearchParamsProto=URLSearchParams.prototype,find=/[!'\(\)~]|%20|%00/g,plus=/\+/g,replace={"!":"%21","'":"%27","(":"%28",")":"%29","~":"%7E","%20":"+","%00":"\0"},replacer=function(match){return replace[match]},secret="__URLSearchParams__:"+Math.random();function appendTo(dict,name,value){if(name in dict){dict[name].push(""+value)}else{dict[name]=isArray(value)?value:[""+value]}}function decode(str){return decodeURIComponent(str.replace(plus," "))}function encode(str){return encodeURIComponent(str).replace(find,replacer)}URLSearchParamsProto.append=function append(name,value){appendTo(this[secret],name,value)};URLSearchParamsProto["delete"]=function del(name){delete this[secret][name]};URLSearchParamsProto.get=function get(name){var dict=this[secret];return name in dict?dict[name][0]:null};URLSearchParamsProto.getAll=function getAll(name){var dict=this[secret];return name in dict?dict[name].slice(0):[]};URLSearchParamsProto.has=function has(name){return name in this[secret]};URLSearchParamsProto.set=function set(name,value){this[secret][name]=[""+value]};URLSearchParamsProto.forEach=function forEach(callback,thisArg){var dict=this[secret];Object.getOwnPropertyNames(dict).forEach(function(name){dict[name].forEach(function(value){callback.call(thisArg,value,name,this)},this)},this)};URLSearchParamsProto.toJSON=function toJSON(){return{}};URLSearchParamsProto.toString=function toString(){var dict=this[secret],query=[],i,key,name,value;for(key in dict){name=encode(key);for(i=0,value=dict[key];i<value.length;i++){query.push(name+"="+encode(value[i]))}}return query.join("&")};var dP=Object.defineProperty,gOPD=Object.getOwnPropertyDescriptor,createSearchParamsPollute=function(search){function append(name,value){URLSearchParamsProto.append.call(this,name,value);name=this.toString();search.set.call(this._usp,name?"?"+name:"")}function del(name){URLSearchParamsProto["delete"].call(this,name);name=this.toString();search.set.call(this._usp,name?"?"+name:"")}function set(name,value){URLSearchParamsProto.set.call(this,name,value);name=this.toString();search.set.call(this._usp,name?"?"+name:"")}return function(sp,value){sp.append=append;sp["delete"]=del;sp.set=set;return dP(sp,"_usp",{configurable:true,writable:true,value:value})}},createSearchParamsCreate=function(polluteSearchParams){return function(obj,sp){dP(obj,"_searchParams",{configurable:true,writable:true,value:polluteSearchParams(sp,obj)});return sp}},updateSearchParams=function(sp){var append=sp.append;sp.append=URLSearchParamsProto.append;URLSearchParams.call(sp,sp._usp.search.slice(1));sp.append=append},verifySearchParams=function(obj,Class){if(!(obj instanceof Class))throw new TypeError("'searchParams' accessed on an object that "+"does not implement interface "+Class.name)},upgradeClass=function(Class){var ClassProto=Class.prototype,searchParams=gOPD(ClassProto,"searchParams"),href=gOPD(ClassProto,"href"),search=gOPD(ClassProto,"search"),createSearchParams;if(!searchParams&&search&&search.set){createSearchParams=createSearchParamsCreate(createSearchParamsPollute(search));Object.defineProperties(ClassProto,{href:{get:function(){return href.get.call(this)},set:function(value){var sp=this._searchParams;href.set.call(this,value);if(sp)updateSearchParams(sp)}},search:{get:function(){return search.get.call(this)},set:function(value){var sp=this._searchParams;search.set.call(this,value);if(sp)updateSearchParams(sp)}},searchParams:{get:function(){verifySearchParams(this,Class);return this._searchParams||createSearchParams(this,new URLSearchParams(this.search.slice(1)))},set:function(sp){verifySearchParams(this,Class);createSearchParams(this,sp)}}})}};upgradeClass(HTMLAnchorElement);if(/^function|object$/.test(typeof URL)&&URL.prototype)upgradeClass(URL);return URLSearchParams}();(function(URLSearchParamsProto){var iterable=function(){try{return!!Symbol.iterator}catch(error){return false}}();if(!("forEach"in URLSearchParamsProto)){URLSearchParamsProto.forEach=function forEach(callback,thisArg){var names=Object.create(null);this.toString().replace(/=[\s\S]*?(?:&|$)/g,"=").split("=").forEach(function(name){if(!name.length||name in names)return;(names[name]=this.getAll(name)).forEach(function(value){callback.call(thisArg,value,name,this)},this)},this)}}if(!("keys"in URLSearchParamsProto)){URLSearchParamsProto.keys=function keys(){var items=[];this.forEach(function(value,name){items.push(name)});var iterator={next:function(){var value=items.shift();return{done:value===undefined,value:value}}};if(iterable){iterator[Symbol.iterator]=function(){return iterator}}return iterator}}if(!("values"in URLSearchParamsProto)){URLSearchParamsProto.values=function values(){var items=[];this.forEach(function(value){items.push(value)});var iterator={next:function(){var value=items.shift();return{done:value===undefined,value:value}}};if(iterable){iterator[Symbol.iterator]=function(){return iterator}}return iterator}}if(!("entries"in URLSearchParamsProto)){URLSearchParamsProto.entries=function entries(){var items=[];this.forEach(function(value,name){items.push([name,value])});var iterator={next:function(){var value=items.shift();return{done:value===undefined,value:value}}};if(iterable){iterator[Symbol.iterator]=function(){return iterator}}return iterator}}if(iterable&&!(Symbol.iterator in URLSearchParamsProto)){URLSearchParamsProto[Symbol.iterator]=URLSearchParamsProto.entries}if(!("sort"in URLSearchParamsProto)){URLSearchParamsProto.sort=function sort(){var entries=this.entries(),entry=entries.next(),done=entry.done,keys=[],values=Object.create(null),i,key,value;while(!done){value=entry.value;key=value[0];keys.push(key);if(!(key in values)){values[key]=[]}values[key].push(value[1]);entry=entries.next();done=entry.done}keys.sort();for(i=0;i<keys.length;i++){this["delete"](keys[i])}for(i=0;i<keys.length;i++){key=keys[i];this.append(key,values[key].shift())}}}})(URLSearchParams.prototype);
\ No newline at end of file
-- 
2.39.5