From 40506bc32efca98b43a72202d0823cdd3c8b2c05 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Fri, 10 Feb 2023 18:02:40 +0100
Subject: Add download Markdown as PDF

---
 html/index.html     |  1 +
 html/whiteboard.css | 14 ++++++++++++++
 html/whiteboard.js  | 15 +++++++++++++++
 3 files changed, 30 insertions(+)

(limited to 'html')

diff --git a/html/index.html b/html/index.html
index decc540..b72e23b 100644
--- a/html/index.html
+++ b/html/index.html
@@ -23,6 +23,7 @@
 			<button class="button" onclick="on_qrcode_click();">QR code</button>
 			<span id="status">Starting up...</span>
 			<button class="buttonred" id="reconnect" onclick="on_reconnect_click();" hidden>Reconnect</button>
+			<span class="helper"></span><img class="center-img clickable" onclick="on_pdf_click();" src="pdf-icon-30.png" height="37" width="30"/></span>
 			<br/>
 			<br/>
                         Reichwein.IT Whiteboard <span id="version"></span> by <a href="https://www.reichwein.it">https://www.reichwein.it</a><br/>
diff --git a/html/whiteboard.css b/html/whiteboard.css
index 4de9b46..2d222d5 100644
--- a/html/whiteboard.css
+++ b/html/whiteboard.css
@@ -20,6 +20,20 @@ div.status {
 	color: #FF0000;
 }
 
+span.helper {
+	display: inline-block;
+	height: 100%;
+	vertical-align: middle;
+}
+
+img.center-img {
+	vertical-align: middle;
+}
+
+.clickable {
+	cursor: pointer;
+}
+
 textarea {
 	/*
 	height: 30vh;
diff --git a/html/whiteboard.js b/html/whiteboard.js
index 38f972f..379c757 100644
--- a/html/whiteboard.js
+++ b/html/whiteboard.js
@@ -94,6 +94,14 @@ function on_version(version)
 	document.getElementById("version").textContent = version;
 }
 
+function on_pdf(pdf)
+{
+        var a = document.getElementById("download-a");
+        a.href = "data:application/pdf;base64," + pdf;
+        a.download = get_id() + ".pdf"
+        a.click();
+}
+
 function on_modify_ack(rev)
 {
         if (rev != revision + 1)
@@ -128,6 +136,8 @@ function on_message(e) {
 		on_qrcode(xmlDocument.getElementsByTagName("png")[0].textContent);
 	} else if (type == "version") {
 		on_version(xmlDocument.getElementsByTagName("version")[0].textContent);
+	} else if (type == "pdf") {
+		on_pdf(xmlDocument.getElementsByTagName("pdf")[0].textContent);
 	} else if (type == "error") {
 		alert(xmlDocument.getElementsByTagName("message")[0].textContent);
 	} else {
@@ -334,3 +344,8 @@ function on_qrcode_click()
 	websocket.send(new XMLSerializer().serializeToString(xmlDocument));
 }
 
+function on_pdf_click()
+{
+	websocket.send("<request><command>pdf</command><id>" + get_id() + "</id></request>");
+}
+
-- 
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