I am using below javascript code to create blob URL. If video size is more like(500mb), then it is taking lot of time.
Please help me to create blob URL for large videos
if we can see Youtube the videos are playing very fast even though they are big in size with BLOB URL
<html>
<head>
<title>Blob URL</title>
</head>
<body>
<video controls="" preload="auto" id="_video"></video>
<script>
var xhr = new XMLHttpRequest();
xhr.responseType = 'blob';
xhr.onload = function() {
var reader = new FileReader();
reader.onloadend = function() {
//console.log(atob(reader.result.slice(reader.result.indexOf(',') + 1)));
var byteCharacters = atob(reader.result.slice(reader.result.indexOf(',') + 1));
var byteNumbers = new Array(byteCharacters.length);
for (var i = 0; i < byteCharacters.length; i++) {
byteNumbers[i] = byteCharacters.charCodeAt(i);
//console.log(i);
}
var byteArray = new Uint8Array(byteNumbers);
var blob = new Blob([byteArray], {type: 'video/mp4'});
var url = URL.createObjectURL(blob);
document.getElementById('_video').src = url;
}
reader.readAsDataURL(xhr.response);
};
xhr.open('GET', 'domain.com/738-360p.mp4',true);
xhr.send();
</script>
</body>
</html>
Related
Hi i created invoice page and added to them jsPDF and html2canvas, but my solution generated blank pdf. How can I repair this? where is a bug ?
In my project used jspdf and html2canvas, can you help me with this?
Script:
$(document).ready(function() {
function generatePDF() {
window.scrollTo(0, 0);
var pdf = new jsPDF('p', 'pt', [1380, 2030]);
html2canvas($(".page-section")[0], {
onrendered: function(canvas) {
document.body.appendChild(canvas);
var ctx = canvas.getContext('2d');
var imgData = canvas.toDataURL("image/png", 1.0);
var width = canvas.width;
var height = canvas.clientHeight;
pdf.addImage(imgData, 'PNG', 20, 20, (width - 10), (height));
}
});
setTimeout(function() {
pdf.save('sample.pdf');
var blob = pdf.output("blob");
var blobURL = URL.createObjectURL(blob);
var iframe = document.getElementById('sample-pdf');
iframe.src = blobURL;
var downloadLink = document.getElementById('pdf-download-link');
downloadLink.href = blobURL;
}, 0);
};
generatePDF();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<script type="text/javascript" src="https://instamarketing.pl/cennik/js/jspdf.min.js"></script>
<script type="text/javascript" src="https://instamarketing.pl/cennik/js/html2canvas.js"></script>
<div class="page-section">
test
</div>
I tried to get a map image from a wms server using the following code.
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Playing with fis broker berlin</title>
<link rel="stylesheet" href="../../libs/ol3/css/ol.css"/>
<link rel="stylesheet" href="../../css/samples.css"/>
</head>
<body>
<div id="map" class="map"></div>
<script src="../../libs/ol3/js/ol.js"></script>
<script>
var imageSource = new ol.source.ImageWMS({
url: 'http://fbinter.stadt-berlin.de/fb/wms/senstadt/k_dtk50',
params: {
'LAYERS': '0',
'REQUEST': 'GetMap',
'STYLES': ['default'],
'SRS': 'EPSG:4326',
'BBOX': [13.079, 52.3284, 13.7701, 52.6877],
'WIDTH': '256',
'HEIGT': '256',
'FORMAT': 'jpeg'
}
})
imageSource.on('imageloaderror', function (event) {
var imageState = event.target.getState()
var request = event.image.n
console.log('imageloaderror, state = ' + imageState)
console.log('request: ' + request)
})
var imageLayer = new ol.layer.Image({
opacity: 0,
source: imageSource
})
var view = new ol.View({
center: [13.4297269, 52.4594867],
zoom: 10
})
var map = new ol.Map({
target: 'map',
layers: [imageLayer],
view: view
})
</script>
</body>
</html>
ol3 fails to show the image, because the wms sends backs a xml exception report instead of jpeg data meaning
crs is not permitted: EPSG:3857.
On the java console we see the message
Resource interpreted as Image but transferred with MIME type text/xml ...
I understand, that the image source is not set up correctly. This needs further investigaton by me. But My question is:
How can I catch the message crs is not permitted: EPSG:3857 and any other error messages from the wms server by the ol script?
You will need to use XHR to load the image and get the exception text, see this thread for some inspiration:
https://groups.google.com/d/msg/ol3-dev/39tX1fSeSc0/KGURE6NrexIJ
imageLoadFunction: function(image, src) {
progress('start');
var img = image.getImage();
if (typeof window.btoa == 'function') {
var xhr = new XMLHttpRequest();
xhr.open('GET', src, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function(e) {
if (this.status == 200) {
var uInt8Array = new Uint8Array(this.response);
var i = uInt8Array.length;
var binaryString = new Array(i);
while (i--) {
binaryString[i] = String.fromCharCode(uInt8Array[i]);
}
var data = binaryString.join('');
var type = xhr.getResponseHeader('content-type');
if (type.indexOf('image') === 0) {
img.src = 'data:' + type + ';base64,' + window.btoa(data);
} else {
error($.parseJSON(data));
}
} else {
error(this.statusText);
}
progress('end');
};
xhr.send();
} else {
img.onload = function() {
progress('end');
};
img.onerror = function() {
progress('end');
error();
};
img.src = src;
}
}
})
How to upload file in SAP Netweaver server using SAPUI5? I tried to upload file using FileUploader but did not get the luck if any one can help it will be very appreciated.
Thanks in Advance
Nothing was added to the manifest nor the component nor index files. It is working for me, you just need to change the number of columns to whatever you want to fit your file.
UploadFile.view.xml
<VBox>
<sap.ui.unified:FileUploader id="idfileUploader" typeMissmatch="handleTypeMissmatch" change="handleValueChange" maximumFileSize="10" fileSizeExceed="handleFileSize" maximumFilenameLength="50" filenameLengthExceed="handleFileNameLength" multiple="false" width="50%" sameFilenameAllowed="false" buttonText="Browse" fileType="CSV" style="Emphasized" placeholder="Choose a CSV file"/>
<Button text="Upload your file" press="onUpload" type="Emphasized"/>
</VBox>
UploadFile.controller.js
sap.ui.define(["sap/ui/core/mvc/Controller", "sap/m/MessageToast", "sap/m/MessageBox", "sap/ui/core/routing/History"], function(
Controller, MessageToast, MessageBox, History) {
"use strict";
return Controller.extend("cafeteria.controller.EmployeeFileUpload", {
onNavBack: function() {
var oHistory = History.getInstance();
var sPreviousHash = oHistory.getPreviousHash();
if (sPreviousHash !== undefined) {
window.history.go(-1);
} else {
var oRouter = sap.ui.core.UIComponent.getRouterFor(this);
oRouter.navTo("admin", true);
}
},
handleTypeMissmatch: function(oEvent) {
var aFileTypes = oEvent.getSource().getFileType();
jQuery.each(aFileTypes, function(key, value) {
aFileTypes[key] = "*." + value;
});
var sSupportedFileTypes = aFileTypes.join(", ");
MessageToast.show("The file type *." + oEvent.getParameter("fileType") +
" is not supported. Choose one of the following types: " +
sSupportedFileTypes);
},
handleValueChange: function(oEvent) {
MessageToast.show("Press 'Upload File' to upload file '" + oEvent.getParameter("newValue") + "'");
},
handleFileSize: function(oEvent) {
MessageToast.show("The file size should not exceed 10 MB.");
},
handleFileNameLength: function(oEvent) {
MessageToast.show("The file name should be less than that.");
},
onUpload: function(e) {
var oResourceBundle = this.getView().getModel("i18n").getResourceBundle();
var fU = this.getView().byId("idfileUploader");
var domRef = fU.getFocusDomRef();
var file = domRef.files[0];
var reader = new FileReader();
var params = "EmployeesJson=";
reader.onload = function(oEvent) {
var strCSV = oEvent.target.result;
var arrCSV = strCSV.match(/[\w .]+(?=,?)/g);
var noOfCols = 6;
var headerRow = arrCSV.splice(0, noOfCols);
var data = [];
while (arrCSV.length > 0) {
var obj = {};
var row = arrCSV.splice(0, noOfCols);
for (var i = 0; i < row.length; i++) {
obj[headerRow[i]] = row[i].trim();
}
data.push(obj);
}
var Len = data.length;
data.reverse();
params += "[";
for (var j = 0; j < Len; j++) {
params += JSON.stringify(data.pop()) + ", ";
}
params = params.substring(0, params.length - 2);
params += "]";
// MessageBox.show(params);
var http = new XMLHttpRequest();
var url = oResourceBundle.getText("UploadEmployeesFile").toString();
http.onreadystatechange = function() {
if (http.readyState === 4 && http.status === 200) {
var json = JSON.parse(http.responseText);
var status = json.status.toString();
switch (status) {
case "Success":
MessageToast.show("Data is uploaded succesfully.");
break;
default:
MessageToast.show("Data was not uploaded.");
}
}
};
http.open("POST", url, true);
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http.send(params);
};
reader.readAsBinaryString(file);
}
});
});
After researching a little more on this issue I finally solved this issue by myself I placed a file controller and a uploader in php which return the details related to files further, we can use it to upload it on server.
Here is the code I have used.
fileUpload.html
<!DOCTYPE html>
<html><head>
<meta http-equiv='X-UA-Compatible' content='IE=edge' />
<title>Hello World</title>
<script id='sap-ui-bootstrap' src='http://localhost/resources/sap-ui-core.js' data-sap-ui-theme='sap_goldreflection'
data-sap-ui-libs='sap.ui.commons'></script>
<script>
var layout = new sap.ui.commons.layout.MatrixLayout();
layout.setLayoutFixed(false);
// create the uploader and disable the automatic upload
var oFileUploader2 = new sap.ui.commons.FileUploader("myupload",{
name: "upload2",
uploadOnChange: true,
uploadUrl: "uploader.php",
uploadComplete: function (oEvent) {
var sResponse = oEvent.getParameter("response");
if (sResponse) {
alert(sResponse);
}
}});
layout.createRow(oFileUploader2);
// create a second button to trigger the upload
var oTriggerButton = new sap.ui.commons.Button({
text:'Trigger Upload',
press:function() {
// call the upload method
oFileUploader2.upload();
$("#myupload-fu_form").submit();
alert("hi");
}
});
layout.createRow(oTriggerButton);
layout.placeAt("sample2");
</script>
</head>
<body class='sapUiBody'>
<div id="sample2"></div>
</body>
</html>
uploader.php
<?php
print_r($_FILES);
?>
It would be good if we can see your code.
This should work.
var layout = new sap.ui.commons.layout.MatrixLayout();
layout.setLayoutFixed(false);
// create the uploader and disable the automatic upload
var oFileUploader2 = new sap.ui.commons.FileUploader({
name : "upload2",
uploadOnChange : false,
uploadUrl : "../../../upload"
});
layout.createRow(oFileUploader2);
// create a second button to trigger the upload
var oTriggerButton = new sap.ui.commons.Button({
text : 'Trigger Upload',
press : function() {
// call the upload method
oFileUploader2.upload();
}
});
layout.createRow(oTriggerButton);
layout.placeAt("sample2");
I'm getting a 403 Forbidden error when trying to access a merged Fusion Table with the code below. Nor I understand why neither how to resolve this.
Accessing the table that has been merged with another table works like a charme.
The merged table as well as the base tables are publicly downloadable.
Anyone knows what could be wrong?? Is accessing merged tables somehow restricted?
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="UTF-8">
<title>FÖJ-Einsatzstellen</title>
<style>
body {
font-family: Arial, sans-serif;
font-size: 12px;
}
#map-canvas {
height: 500px;
width: 600px;
}
</style>
<script type="text/javascript"
src="https://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript"
src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js">
</script>
<script type="text/javascript">
var map;
var infoWindow = new google.maps.InfoWindow();
var DEFAULT_ICON_URL = 'http://g.etfv.co/http://www.google.com'
// EDIT: change this key to your own from the Google APIs Console
// https://code.google.com/apis/console/
var apiKey = 'PLACE_YOUR_OWN_KEY_HERE';
// EDIT: Specify the table with location data and icon URLs
//var tableID = '1i0mw7f4b06sG14-mAO-zEJI1gekZ8wte_J6w05c'; // Basis-Table
var tableID = '1eCPADfnXccPMAYh24W-pUEF-eiKSlOD9e0xSKBM'; // ge-merge-te Table
// Create variables for the columns you need to retrieve from the table
var latitudeColumn = 'Latitude';
var iconUrlColumn = 'Farbcodierung für Marker';
function createMarker (coordinate, url, content) {
var marker = new google.maps.Marker({
map: map,
position: coordinate,
icon: new google.maps.MarkerImage(url)
});
google.maps.event.addListener(marker, 'click', function(event) {
infoWindow.setPosition(coordinate);
infoWindow.setContent(content);
infoWindow.open(map);
});
};
function fetchData() {
// Construct a query to get data from the Fusion Table
var query = 'SELECT '
+ latitudeColumn + ','
+ '\'' + iconUrlColumn + '\''
+ ' FROM '
+ tableID;
var encodedQuery = encodeURIComponent(query);
// Construct the URL
var url = ['https://www.googleapis.com/fusiontables/v1/query'];
url.push('?sql=' + encodedQuery);
url.push('&key=' + apiKey);
url.push('&callback=?');
// Send the JSONP request using jQuery
$.ajax({
url: url.join(''),
dataType: 'jsonp',
success: onDataFetched,
error: onError,
timeout : 7500
});
}
function onError(e) {
alert(e);
}
function onDataFetched(data) {
if(data.error) {
var errs = data.error.errors;
var msg = "";
for (var i in data.error.errors) {
msg +=
parseInt(i, 10)+1 + ". Fehler:" +
"\ndomain: " + errs[i].domain +
"\nmessage: " + errs[i].message +
"\nreason: " + errs[i].reason + "\n";
}
alert(
"Leider sind Fehler aufgetreten (um genau zu sein: " + data.error.errors.length + " Fehler, Code: " + data.error.code + "):\n" + msg
);
return;
}
var rows = data['rows'];
var iconUrl;
var iconUrl_part1 = 'http://chart.apis.google.com/chart?cht=mm&chs=32x32&chco=';
var iconUrl_part2 = '&ext=.png';
var content = "mein content";
var coordinate;
// Copy each row of data from the response into variables.
// Each column is present in the order listed in the query.
// Starting from 0.
// EDIT this if you've changed the columns, above.
for (var i in rows) {
var geocode = rows[i][0].split(",");
coordinate = new google.maps.LatLng(geocode[0],geocode[1]);
if (rows[i][1] != '') { // ensure not empty
iconUrl = iconUrl_part1 + rows[i][1] + iconUrl_part2;
createMarker(coordinate, iconUrl, content);
} else {
createMarker(coordinate, DEFAULT_ICON_URL, content);
}
}
}
function initialize() {
fetchData(); // begin retrieving data from table, and put it on the map
map = new google.maps.Map(document.getElementById('map-canvas'), {
center: new google.maps.LatLng(48.537778, 9.041111),
zoom: 7,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
i am creating a jquery mobile application;this is the script to load flickr photos thumbnail in a div it is loading but it is appearing in a group thumbnail not loading each images.can load each thumbnails by editing this.i just removed my api key and my ids.
$(function() {
var api_key = 'API KEY';
var user_id = 'ID';
var photoset_id = 'PHOTO SET ID';
var large_image_size = 'Medium';
var photoset_id,photo_id;
var current = -1;
var continueNavigation = false;
var photos_service = 'http://api.flickr.com/services/rest/?&method=flickr.photosets.getPhotos' + '&api_key=' + api_key;
var photos_url = photos_service + '&photoset_id=' + photoset_id + '&media=photos&format=json&jsoncallback=?';
var large_photo_service = 'http://api.flickr.com/services/rest/?&method=flickr.photos.getSizes' + '&api_key=' + api_key;
var $photosContainer = $('#images').find('#ba');
var $photopreview = $('#flickr_photopreview');
var $flickrOverlay = $('#flickr_overlay');
var $loadingStatus = $('.loading_small');
$(function(){
$('#images').stop().animate(200,function(){
if($photosContainer.is(':empty')){
/*
if sets not loaded, load them
*/
LoadPhotos();
}
});
},function(){
});
function LoadPhotos(){
$photosContainer.empty();
$loadingStatus.css('visibility','visible');
$.getJSON(photos_url,function(data){
if(data.stat != 'fail') {
var photo_count = data.photoset.photo.length;
var photo_count_total = photo_count ;
for(var i = 0; i < photo_count; ++i){
var photo = data.photoset.photo[i];
var photoid = photo.id;
var secret = photo.secret;
var server = photo.server;
var farm = photo.farm;
var photoUrl = 'http://farm'+farm+'.static.flickr.com/'+server+'/'+photoid+'_'+secret+'_s.jpg';
var $elem = $('<div />');
var $link = $('<a class="toLoad" href="#" />');
$link.data({
'photoid' :photoid,
'secret' :secret,
'server' :server,
'farm' :farm,
'photoUrl' :photoUrl,
'photo_title' :photo.title
});
$photosContainer.append($elem.append($link));
$link.bind('click',function(e){
var $this = $(this);
current = $this.parent().index();
photo_id = $this.data('photoid');
LoadLargePhoto();
e.preventDefault();
});
}
LoadPhotosImages();
}
});
}
function LoadPhotosImages(){
var toLoad = $('.toLoad:in-viewport').size();
if(toLoad > 0)
$loadingStatus.css('visibility','visible');
var images_loaded = 0;
$('.toLoad:in-viewport').each(function(i){
var $space = $photosContainer.find('.toLoad:first');
var $img = $('<img style="display:none;" />').load(function(){
++images_loaded;
if(images_loaded == toLoad){
$loadingStatus.css('visibility','hidden');
$photosContainer.find('img').fadeIn();
}
}).error(function(){
//TODO
++images_loaded;
if(images_loaded == toLoad){
$loadingStatus.css('visibility','hidden');
$photosContainer.find('img').fadeIn();
}
}).attr('src',$space.data('photoUrl'))
.attr('alt',$space.data('photoid'));
var $photo_title = $('<span/>',{'html':$space.data('photo_title')});
$space.append($photo_title).append($img).removeClass('toLoad');
});
}
<!DOCTYPE html>
<html lang="en">
<head>
<script src="js/jquery-latest.js"></script>
<script type="text/javascript">
function downloadImg() {
$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?",
{
ids : "78368944#N06",
tags: "",
tagmode: "any",
format: "json",
},
function(data) {
$('.img-1').attr('src', data.items[0].media.m);
$('.tit-1').text(data.items[0].title);
$('.img-2').attr('src', data.items[1].media.m);
$('.tit-2').text(data.items[1].title);
}
);
}
$(document).ready(function() {
downloadImg();
});
</script>
</head>
<body>
<div class="img-cont"><img class="img-1" /> </div>
<h3 class="tit-1"></h3>
<div class="img-cont"><img class="img-1" /> </div>
<h3 class="tit-1"></h3>
</body>
</html>