From b6c1b3aeaca30b67f2e555f9689f7d8d69431205 Mon Sep 17 00:00:00 2001
From: bel <bel>
Date: Wed, 9 Feb 2022 21:57:56 -0700
Subject: [PATCH] navigation

---
 spike/review/reinvent/ezmded/ui/index.html | 26 +++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/spike/review/reinvent/ezmded/ui/index.html b/spike/review/reinvent/ezmded/ui/index.html
index 82ed804..5c96a20 100644
--- a/spike/review/reinvent/ezmded/ui/index.html
+++ b/spike/review/reinvent/ezmded/ui/index.html
@@ -42,6 +42,10 @@
 			function init() {
 				drawTree()
 				setInterval(drawTree, 100000)
+            navigateToQueryParams()
+			}
+
+         function navigateToQueryParams() {
 				var queryF = getParameterByName("f")
 				var queryQ = getParameterByName("q")
 				console.log("init query f:", queryF, "q:", queryQ)
@@ -50,7 +54,7 @@
 				} else if (queryQ && queryQ.length > 0) {
 					searchFilesFor(queryQ)
 				}
-			}
+         }
 
 			function getParameterByName(name, url = window.location.href) {
 				name = name.replace(/[\[\]]/g, '\\$&');
@@ -99,7 +103,7 @@
 					if (!results || results.length == 0)
 						innerHTML = "no results"
 					disableMDE()
-					window.location.hash = "#?q="+q
+               navigateToQuery("q", q)
 					document.getElementById("searchResults").innerHTML = innerHTML
 				})
 			}
@@ -174,9 +178,25 @@
 				easyMDE.meta = {
 					id: id,
 				}
-				window.location.hash = "#?f="+id
+            navigateToQuery("f", id)
 			}
 
+         var lastNavigateToQuery = new Date()
+
+         function navigateToQuery(k, v) {
+            if (new Date() - lastNavigateToQuery < .1)
+               return
+            lastNavigateToQuery = new Date()
+            const url = new URL(window.location)
+            url.searchParams.set(k, v)
+            window.location.hash = "#?"+k+"="+v
+            //window.history.pushState({}, '', url)
+         }
+
+         window.onhashchange = () => {
+            navigateToQueryParams()
+         }
+
 			function drawTree() {
 				function htmlifyBranch(id, branch) {
 					var parent = `