Export a web page as a pdf - pdf

I want to print a web page in a pdf or extract it as a html single file.
I use data analytics tool (Apache Zeppelin) where I create a report. I want to create a static report from this tool for demo purposes. I cannot export this report from the tool (it is not embedded as an option yet) so I want to try to print in pdf. If I try to simply print it in pdf the result is a mess (images overleaping with text).
Has anyone has an idea on how to do it?

Someone suggested a solution here that you could try. Let me know if it works. Here is the code too:
%angular
<div id="divtest">Wooooo!</div>
<button id="cmd" type="submit" onclick="useJSPDF()">Generate PDF</button>
<script type="text/javascript">
function useJSPDF() {
var element = $('#divtest');
var doc = new jsPDF();
doc.fromHTML(element.html(), 15, 15,
{ 'width': 170, }
);
doc.save('sample-file.pdf');
}
if (window.jsPDF) {
} else
{ var sc = document.createElement('script'); sc.type = 'text/javascript'; sc.src = 'https://cdnjs.cloudflare.com/ajax/libs/jspdf/0.9.0rc1/jspdf.min.js'; sc.onerror = function(err) \{ alert(err); }
document.getElementsByTagName('head')[0].appendChild(sc);
}
</script>
Once the code is being executed, a button should be displayed like this

Related

Svelte: how to create a Blob from `writable store`?

How can I use a "writable store" to create a "blob"?
I am new to Svelte.
I am trying to code a simple markdown editor for visually impaired users. The content of the "textarea" is stored in a "writable store" for further use:
speech-synthesis
markdown-preview
the content of an existing text file is stored in it
save text to file
But saving the text content via download to a file does not work.
<script>
let blob = new Bob([$textStore], type:"text/plain");
let url = URL.createObjectURL(blob);
</script>
<button>
<a href={url} download="untitled.md" id="link">Download
</a>
</button>
An empty file is saved or it has the content "[object Object]", when I use curley brackets:
let blob = new Blob ([{$textStore}], {type: 'text/plain'});
File for testing:
// TextStore.js
import { writable } from "svelte/store";
export const textStore = writable('');
<!-- EditorTest.svelte -->
<script>
import { textStore } from "./TextStore.js";
let blob = new Blob ([{$textStore}], {type: 'text/plain'});
let url = URL.createObjectURL(blob);
</script>
<h1>Blob-Test</h1>
<textarea bind:value={$textStore} cols="20" rows="5"></textarea>
<hr>
<pre>{$textStore}</pre>
<br>
<button>
Save
</button>
Can someone help, thanks a lot already.
The main issue is, that the code is not reacting to the changes. The Blob is created once at the beginning, when the store is still empty. You could make it reactive using $:, but that is not a great idea, as it unnecessarily re-creates the Blob over and over.
I would recommend using a click handler on the button (the link inside it is invalid HTML anyway), and then creating the Blob there:
<button on:click={onDownload}>
Save
</button>
function onDownload() {
const blob = new Blob([$textStore], {type: 'text/plain'});
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.download = 'file.md';
link.href = url;
link.click();
URL.revokeObjectURL(url); // Object URLs should be revoked after use
}

Javascript inside a xwiki macro have no effect

I am trying to write a macro, which embed draw.io. when user double click the diagram image I want to open draw.io in aonther window and get image data back as text. but my javascript inside macro not working at all.
It seems my javascript code in macro is not executed at all, can somebody tell me the right way to inject javascrpt code inside a velocity macro?
updates: I have noticed that when editing in CKEditor, my javascript code will not be executed, bu when editing in inline editor it will be executed.
{{velocity}}
$wikimacro.content
#if($wikimacro.content == '')
#set ($wikimacro.content = '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')
#end
#if($xcontext.action == 'edit')
{{html}}
<img
class="drawio"
style="cursor: default"
src="data:image/png;base64,$wikimacro.content"
/>
<script>
//<![CDATA[
document.addEventListener('dblclick', function(evt)
{
var url = 'http://172.25.161.211/?embed=1&ui=atlas&spin=1&modified=unsavedChanges&proto=json';
var source = evt.srcElement || evt.target;
if (source.nodeName == 'IMG' && source.className == 'drawio'){
if (source.drawIoWindow == null || source.drawIoWindow.closed) {
// Implements protocol for loading and exporting with embedded XML
var receive = function(evt) {
if (evt.data.length > 0 && evt.source == source.drawIoWindow) {
var msg = JSON.parse(evt.data);
// Received if the editor is ready
if (msg.event == 'init') {
// Sends the data URI with embedded XML to editor
source.drawIoWindow.postMessage(JSON.stringify({action: 'load', xmlpng: source.getAttribute('src')}), '*');
}
// Received if the user clicks save
else if (msg.event == 'save')
{
// Sends a request to export the diagram as XML with embedded PNG
source.drawIoWindow.postMessage(JSON.stringify(
{action: 'export', format: 'xmlpng', spinKey: 'saving'}), '*');
}
// Received if the export request was processed
else if (msg.event == 'export')
{
// Updates the data URI of the image
// TODO save to xwiki server as macro's content
source.setAttribute('src', msg.data);
}
// Received if the user clicks exit or after export
if (msg.event == 'exit' || msg.event == 'export')
{
// Closes the editor
window.removeEventListener('message', receive);
source.drawIoWindow.close();
source.drawIoWindow = null;
}
}
};
// Opens the editor
window.addEventListener('message', receive);
source.drawIoWindow = window.open(url);
}
else
{
// Shows existing editor window
source.drawIoWindow.focus();
}
}
});
// ]]>
</script>
{{/html}}
#else
{{html}}
<img src="data:image/png;base64,$wikimacro.content" />
{{/html}}
#end
{{/velocity}}
In XWiki the insertion of web resources like css and js content is generally done separately through what is called "skin extensions", best is probably to look at the documentation on https://extensions.xwiki.org/xwiki/bin/view/Extension/Skin%20Extension%20Plugin.
In short, it involves adding an object of type XWiki.JavaScriptExtention in the page holding your macro and reference to it in your macro's code.
Note that an extension which integrate draw.io already exist on https://extensions.xwiki.org/xwiki/bin/view/Extension/Diagram%20Application, and I guess looking at the source of this extension might be interesting.

Download a PDF generated by Apps Script via web app

I'm trying to figure out how to make a Google Apps Script deployed as a web app download a PDF that's generated on a click. It almost works, but the resulting file isn't valid. I can't figure out if it's an encoding issue or something else.
In Apps Script the code looks simple:
function makePDF() {
...
var pdfBlob = doc.getAs('application/pdf');
return Utilities.base64Encode(pdfBlob.getBytes());
}
In the browser, there's a click handler:
function clickHandler(ev) {
ev.preventDefault();
google.script.run
.withSuccessHandler(function(data) {
var pdf = new Blob([window.atob(data)]);
var href = window.URL.createObjectURL(pdf);
var link = document.querySelector('#hiddenLink');
link.href = href;
link.click();
})
.makePDF();
}
Any suggestions?
Thanks!
I figured it out, so posting the answer if anyone else is trying to pass a PDF from Apps Script to the client javascript. It's all much simpler than I had made it.
Rather than messing around with base64 encodings, just pass back the bytes array:
function makePDF() {
...
var pdfBlob = DocumentApp.openById('1234').getAs('application/pdf');
return pdfBlob.getBytes();
}
Now, on the client side, construct a new Blob from an ArrayBuffer. That's easy too:
function clickHandler(ev) {
google.script.run
.withSuccessHandler(function(data) {
var arr = new Uint8Array(data);
var blob = new Blob([arr.buffer], {type: 'application/pdf'});
var obj_url = window.URL.createObjectURL(blob);
var hiddenLink = document.getElementById('hiddenPDFLink');
hiddenLink.setAttribute('href', obj_url);
hiddenLink.setAttribute('download', 'filename.pdf');
hiddenLink.click();
})
.makePDF();
}
And that's it! Hope someone else finds this helpful.
I assume that your makePDF function is doing some other stuffs/Calculation and at the end you need that document to be downloaded to local computer.
What you can do is inside success handler
var link = document.querySelector('#hiddenLink');
link.href = "https://docs.google.com/feeds/download/documents/export/Export?id=**TheIdOfDocumenToBeDownloaded**&exportFormat=pdf";
link.click();
It will then give you a prompt to save document on to local computer.

Google Script for Uploading File Not Working

I wrote a script for uploading files to my Google Drive using the Google Script. I deployed it as a WebApp but it's not working and I don't know why. The button just gets stuck on "Subiendo..." and never changes anything inside my Drive. I'm sure I gave the script all the permissions and I already tried to see what's happening on my own without any sucess. Can you maybe help me find what should I do? I post the code here:
Code.gs
function doGet() {
return HtmlService.createHtmlOutputFromFile('main').setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function serverFunc(theForm) {
try{
var folder_name = "publicaciones";
var folder,folders = DriveApp.getFoldersByName(folder_name);
if(folders.hasNext()){
folder = folders.next();
}else{
folder = DriveApp.createFolder(folder_name);
}
Logger.log("TheForm", theForm == null);
var blob = theForm.theFile;
Logger.log("Blob!", blob == null);
var file = folder.createFile(blob);
Logger.log("File:", file.getName());
return "Archivo subido exitosamente: " + file.getUrl();
} catch(error){
Logger.log("error: ", error.toString());
return error.toString();
}
}
** main.html **
<div>
<form id="myForm">
<input type="file" name="theFile">
<input type="hidden" name="anExample">
<br>
<input type="button" value="Subir Archivo" onclick="this.value='Subiendo...';
google.script.run.withSuccessHandler(fileUploaded).serverFunc(this.parentNode);
return false;">
</form>
</div>
<div id="output">
</div>
<script>
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}
</script>
I'd appreaciate any help or pointers you can give me. Thanks a lot!
Looks like there is a bug currently that Google is working on. I found a possible fix:
Change your input tag to this:
<input type="button" value="Subir Archivo" onclick="callServerCode()"/>
Add a function to the <script> tag:
<script>
function callServerCode() {
var formToSend = document.getElementById('myForm');
google.script.run
.withSuccessHandler(fileUploaded)
.serverFunc(formToSend);
};
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}
</script>
Note that inside the new function, it gets the form using var formToSend = document.getElementById('myForm');
And change IFRAME to NATIVE.
It's a doc issue needs to fix with Google when using SandBoxMode=IFRAME currently. See here. I've tested it works by swapping IFRAME to NATIVE. You can simply do it:
function doGet() {
return HtmlService.createHtmlOutputFromFile('main');
}
Google has turned of NATIVE for SandBoxMode. It is now set to IFRAME only.
See here

how to invoke onclick function in html from vb.net or C#

I am trying to invoke the onclick function in an html page that displays content. I am using the httpwebreqest control and not a browser control. I have traced the function and tried to find the link it calls but looking at the code below I tried inserting the link into the browser with the main url but it does not work.
<div style="position:relative;" id="column_container">
<a href="#" onclick="
if (! loading_next_page) {
loading_next_page = true;
$('loading_recs_spinner').style.visibility = 'visible';
**new Ajax.Request('/recommendations?directory=non-profit&page=**' + next_page, {
onComplete: function(transport) {
if (200 == transport.status){
$('column_container').insert({ bottom: transport.responseText });
loading_next_page = false;
$('loading_recs_spinner').style.visibility = 'hidden';
next_page += 1;
if (transport.responseText.blank()) $('show_more_recs').hide();
}
}
});
}
return false;
Any ideas would be deeply appreciated.
Thanks anyone who has viewed...but I resolved the issue. The link after the ajax request was actually correct and it just was not showing anything in the browser but the source contains all the links I need.