I am developing an iPad application using Phonegap (Cordova-1.9.0) and jQuery Mobile 1.0.1 . I need to use image gallery for my application.In my application.I found photoswipe image gallery.
I capture image from iPad camera and save as Camera.DestinationType.DATA_URL (Phonegap api ). My imagea are saved as base64, type.
Photoswipe image gallery works fine when I save image as Camera.DestinationType.FILE_URI.
But my problem is that how do i use photoswipe gallery using Camera.DestinationType.DATA_URL?
thank you
I found a solution for a similar problem.
I use photoSwipe with base64 in a web page, and it works this way:
<li><img src="data:image/png;base64,<c:out value='${entry.imagenString}'/>"></li>
In the href and src attributes I put the string of base64 with the notation to indicate that is a base64.
I'll try to use it in Phonegap, but I think that must be the same code.
Edit: I tested it in Phonegap and it works.
I use this :
var imagesArray = data.callback.include.images;
// images :
if(imagesArray && imagesArray.length > 0 && imagesArray != null && imagesArray != undefined){
var images = imagesArray.map((item)=>{
var link = item.trim();
var base = link.split('base64,');
var a = base[0];
var b = base[1];
return `<figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">
<a href=${a}base64,${b} itemprop="contentUrl" data-size="1024x1024">
<img src=${a}base64,${b} itemprop="thumbnail" alt="Image description" />
</a>
<figcaption itemprop="caption description">CAPTION :</figcaption>
</figure>`
})
// building the gallery :
var now = new Date().getTime();
var galleryClassName = "gal-" + shareId + "-" + commentId + "-" + now;
var gallery = `<div class="comments-gallery ${galleryClassName} gallery" itemscope itemtype="http://schema.org/ImageGallery">
${images}
</div>`;
}else { gallery = "" }
then include the gallery variable and then initialize it by calling its class as
var output = `<div class="row"> ${gallery} </div>`;
// init gallerires :
initPhotoSwipeFromDOM("." + galleryClassName);
Related
I want get the name of the image type like i selected .png ,.gif ...etc,I need to get the name of the selected from iOS gallery.For that i am using the following code snippet.
Titanium.Media.openPhotoGallery({
success:function(event)
{
var cropRect = event.cropRect;
image = event.media;
if(event.mediaType == Ti.Media.MEDIA_TYPE_PHOTO)
{
var newImageName = new Date().getTime() + ".jpg";
//var newImageName = new Date().getTime();
var filename = Titanium.Filesystem.applicationDataDirectory + "/" + newImageName;
Ti.App.Properties.setString("filename", filename);
newImage = Titanium.Filesystem.getFile(filename);
newImage.write(image);
}
through every file is converted to jpg format .I want get the what every file extension in gallery.
When user click on the button in toolbar of Firefox I need to change content
of the current active html page. In standart]d implementation it's look like this :
function injectNewContent() {
var pageHtml =
[
"<html>",
"<head>",
"</head>",
"<frameset cols='270,*' frameborder='0'>",
"<frame name='frameI' src='http://www.123.com/default.html'>",
"<frame name='frameII' src='" + document.location + "'>",
"<noframes>",
"<body>",
"noframes",
"</body>",
"</noframes>",
"</frameset>",
"</html>"
];
var fullPageHtml = "";
for (var i in pageHtml)
{
fullPageHtml += pageHtml[i];
}
window.document.write(fullPageHtml);
}
What I need to change in this code to get same functionality ?
var windowMediator = Components.classes['#mozilla.org/appshell/window-mediator;1'].
getService(Components.interfaces.nsIWindowMediator);
var recentWindow = windowMediator.getMostRecentWindow("navigator:browser");
recentWindow. ???
Or may be I do something wrong ?
Thanks for any help...
You don't need to go looking for the browser window, your button is already sitting on one. To access the content area of the current tab simply use window.content. This should do what you want:
var doc = window.content.document;
doc.open("text/html", true);
doc.write(fullPageHtml);
doc.close();
Though personally I would rather assign HTML code to doc.documentElement.innerHTML.
I have a webpage with prettyPhoto and a youtube video inside the web page.
With jquery I do:
$("#youtubevideo embed").attr("wmode", "opaque");
also tried $("#youtubevideo embed").attr("wmode", "transparent");
In firefox image is over the youtube video, but the corners of pretty photo are missing. Not really missing because if I scroll up ad down they are shown. But still they don't appear correctly.
In Chrome video is still on top of the images :( Is there a way to fix this? Thanks
after 2 days of searching the web for the answer i've found a pure JS function that fix it in all browsers!
there you go:
function fix_flash() {
// loop through every embed tag on the site
var embeds = document.getElementsByTagName('embed');
for (i = 0; i < embeds.length; i++) {
embed = embeds[i];
var new_embed;
// everything but Firefox & Konqueror
if (embed.outerHTML) {
var html = embed.outerHTML;
// replace an existing wmode parameter
if (html.match(/wmode\s*=\s*('|")[a-zA-Z]+('|")/i))
new_embed = html.replace(/wmode\s*=\s*('|")window('|")/i, "wmode='transparent'");
// add a new wmode parameter
else
new_embed = html.replace(/<embed\s/i, "<embed wmode='transparent' ");
// replace the old embed object with the fixed version
embed.insertAdjacentHTML('beforeBegin', new_embed);
embed.parentNode.removeChild(embed);
} else {
// cloneNode is buggy in some versions of Safari & Opera, but works fine in FF
new_embed = embed.cloneNode(true);
if (!new_embed.getAttribute('wmode') || new_embed.getAttribute('wmode').toLowerCase() == 'window')
new_embed.setAttribute('wmode', 'transparent');
embed.parentNode.replaceChild(new_embed, embed);
}
}
// loop through every object tag on the site
var objects = document.getElementsByTagName('object');
for (i = 0; i < objects.length; i++) {
object = objects[i];
var new_object;
// object is an IE specific tag so we can use outerHTML here
if (object.outerHTML) {
var html = object.outerHTML;
// replace an existing wmode parameter
if (html.match(/<param\s+name\s*=\s*('|")wmode('|")\s+value\s*=\s*('|")[a-zA-Z]+('|")\s*\/?\>/i))
new_object = html.replace(/<param\s+name\s*=\s*('|")wmode('|")\s+value\s*=\s*('|")window('|")\s*\/?\>/i, "<param name='wmode' value='transparent' />");
// add a new wmode parameter
else
new_object = html.replace(/<\/object\>/i, "<param name='wmode' value='transparent' />\n</object>");
// loop through each of the param tags
var children = object.childNodes;
for (j = 0; j < children.length; j++) {
try {
if (children[j] != null) {
var theName = children[j].getAttribute('name');
if (theName != null && theName.match(/flashvars/i)) {
new_object = new_object.replace(/<param\s+name\s*=\s*('|")flashvars('|")\s+value\s*=\s*('|")[^'"]*('|")\s*\/?\>/i, "<param name='flashvars' value='" + children[j].getAttribute('value') + "' />");
}
}
}
catch (err) {
}
}
// replace the old embed object with the fixed versiony
object.insertAdjacentHTML('beforeBegin', new_object);
object.parentNode.removeChild(object);
}
}
}
now you can just run in when the page loads with jQuery:
$(document).ready(function () {
fix_flash();
}
Also you can add ?wmode=transparent to each youtube link
So if you have code like:
<iframe src="http://www.youtube.com/embed/aoZbiS20HGI">
</iframe>
You need to change it to:
<iframe src="http://www.youtube.com/embed/aoZbiS20HGI?wmode=transparent">
</iframe>
I wrote a program that gets youtube video URL and downloads it
Up today I did this:
1. get video "token" from "/get_video_info?video_id=ID" like:
http://www.youtube.com/get_video_info?video_id=jN0nWjvzeNc
2. Download Video by requesting it from "/get_video?video_id=ID&t=TOKEN&fmt=FORMAT_ID" like:
http://www.youtube.com/get_video?video_id=jN0nWjvzeNc&t=vjVQa1PpcFMgAK0HB1VRbinpVOwm29eGugPh3fBi6Dg%3D&fmt=18
But this doesn't work anymore!
What is the new download URL?
Thanks
Actually I'm working on the similar project that downloading the video file from youtube. I find that the get_video might be blocked by Youtube. so instead of using get_video., I use the video info retrieved from get_video_info and extract it to get the video file url.
Within the get_video_info, there are url_encoded_fmt_stream_map. After encoding it, you can find url and signature value of every video with different format. So the file url is like [url value]+'&signature='+[sig value].
Additionally I find the following topic that using same method with mine. Hope it can help you.
Can't Download from youtube
If you are interested about how to downloading youtube video file, there is a small program written by me to demonstrate the process. You are free to use it.
https://github.com/johnny0614/YoutubeVideoDownload
Add &asv=2 to the end of the URL.
You can get the stream directly by using only
http://www.youtube.com/get_video_info?video_id=jN0nWjvzeNc
I made a little script to stream youtube videos in PHP. See how the script get the video file.
<?php
#set_time_limit(0);
$id = $_GET['id']; //The youtube video ID
$type = $_GET['type']; //the MIME type of the video
parse_str(file_get_contents('http://www.youtube.com/get_video_info?video_id='.$id),$info);
$streams = explode(',',$info['url_encoded_fmt_stream_map']);
foreach($streams as $stream){
parse_str($stream,$real_stream);
$stype = $real_stream['type'];
if(strpos($real_stream['type'],';') !== false){
$tmp = explode(';',$real_stream['type']);
$stype = $tmp[0];
unset($tmp);
}
if($stype == $type && ($real_stream['quality'] == 'large' || $real_stream['quality'] == 'medium' || $real_stream['quality'] == 'small')){
header('Content-type: '.$stype);
header('Transfer-encoding: chunked');
#readfile($real_stream['url'].'&signature='.$real_stream['sig']); //Change here to do other things such as save the file to the filesystem etc.
ob_flush();
flush();
break;
}
}
?>
See the working demo here. I hope this can help you.
After a lot of failed tries, this github repositories help me:
https://github.com/rg3/youtube-dl
Get the url only like:
youtube-dl 'https://www.youtube.com/watch?v=bo_efYhYU2A' --get-url
download an mp4 and save as a.mp4 like:
youtube-dl 'https://www.youtube.com/watch?v=bo_efYhYU2A' -f mp4 -o a.mp4
Good luck.
Last time I was working on fixing one of the broken Chrome extensions to download YouTube video. I fixed it by altering the script part.
(Javascript)
var links = new String();
var downlink = new String();
var has22 = new Boolean();
has22 = false;
var Marked = false;
var FMT_DATA = fmt_url_map;//This is html text that you have to grab. In case of extension it was readily available through:document.getElementsByTagName('script');
var StrSplitter1 = '%2C', StrSplitter2 = '%26', StrSplitter3 = '%3D';
if (FMT_DATA.indexOf(',') > -1) { //Found ,
StrSplitter1 = ',';
StrSplitter2 = (FMT_DATA.indexOf('&') > -1) ? '&' : '\\u0026';
StrSplitter3 = '=';
}
var videoURL = new Array();
var FMT_DATA_PACKET = new Array();
var FMT_DATA_PACKET = FMT_DATA.split(StrSplitter1);
for (var i = 0; i < FMT_DATA_PACKET.length; i++) {
var FMT_DATA_FRAME = FMT_DATA_PACKET[i].split(StrSplitter2);
var FMT_DATA_DUEO = new Array();
for (var j = 0; j < FMT_DATA_FRAME.length; j++) {
var pair = FMT_DATA_FRAME[j].split(StrSplitter3);
if (pair.length == 2) {
FMT_DATA_DUEO[pair[0]] = pair[1];
}
}
var url = (FMT_DATA_DUEO['url']) ? FMT_DATA_DUEO['url'] : null;
if (url == null) continue;
url = unescape(unescape(url)).replace(/\\\//g, '/').replace(/\\u0026/g, '&');
var itag = (FMT_DATA_DUEO['itag']) ? FMT_DATA_DUEO['itag'] : null;
var itag = (FMT_DATA_DUEO['itag']) ? FMT_DATA_DUEO['itag'] : null;
if (itag == null) continue;
var signature = (FMT_DATA_DUEO['sig']) ? FMT_DATA_DUEO['sig'] : null;
if (signature != null) {
url = url + "&signature=" + signature;
}
if (url.toLowerCase().indexOf('http') == 0) { // validate URL
if (itag == '5') {
links += '<span class="yt-uix-button-menu-item" id="v240p">FLV (240p)</span>';
}
if (itag == '18') {
links += '<span class="yt-uix-button-menu-item" id="v360p">MP4 (360p)</span>';
}
if (itag == '35') {
links += '<span class="yt-uix-button-menu-item" id="v480p">FLV (480p)</span>';
}
if (itag == '22') {
links += '<span class="yt-uix-button-menu-item" id="v720p">MP4 HD (720p)</span>';
}
if (itag == '37') {
links += ' <span class="yt-uix-button-menu-item" id="v1080p">MP4 HD (1080p)</span>';
}
if (itag == '38') {
links += '<span class="yt-uix-button-menu-item" id="v4k">MP4 HD (4K)</span>';
}
FavVideo();
videoURL[itag] = url;
console.log(itag);
}
}
You can get separate video link from videoURL[itag] array.
The extension can be downloaded from here.
I hope this would help someone. This is working solution (as of 06-Apr-2013)
I am writing a simple "Book" create page in ASP.NET MVC. User can create book by filling title,year etc.. and selecting a cover image. When user press "Create" button Form sends image and data to Controller action called "Create" then I save image to disk and data to database.
But I want to display image when user select image by file dialog.To do this As far as I know I must upload image to server then display in client browser.But if a user cancels the "Create" operation after uploading image, the image will remain in the server's disk.So How can I deal with these temp images or Is there any way to display image in client browser without upload to server?
Due to security reasons, you will not be able to display the images to the users without uploading them to the server. Displaying images from file system is considered a security risk.
EDIT: To remove the unused images, you can create a thread to run a cleanup routine to which will delete them from the upload directory regularly.
Yes, using Silverlight, for example:
In Page.xaml:
<StackPanel x:Name="LayoutRoot" Background="White">
<Button x:Name="btn1" Content="Select image file">
<Image x:Name="img1">
</StackPanel>
and in Page.xaml.cs:
public partial class Page : UserControl
{
public Page()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(Page_Loaded);
}
void Page_Loaded(object sender, RoutedEventArgs e)
{
btn1.Click += new RoutedEventHandler(btn1_Click);
}
void btn1_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == true)
{
Stream s = ofd.File.OpenRead();
BitmapImage bi = new BitmapImage();
bi.SetSource(s);
img1.Source = bi;
s.Close();
}
}
}
Read more here.
Yes, you can using javascript
Javascript:
function showThumbnail(files){
for(var i=0;i<files.length;i++){
var file = files[i]
var imageType = /image.*/
if(!file.type.match(imageType)){
console.log("Not an Image");
continue;
}
var image = document.createElement("img");
var thumbnail = document.getElementById("thumbnail");
image.file = file;
thumbnail.appendChild(image)
var reader = new FileReader()
reader.onload = (function(aImg){
return function(e){
aImg.src = e.target.result;
};
}(image))
var ret = reader.readAsDataURL(file);
var canvas = document.createElement("canvas");
ctx = canvas.getContext("2d");
image.onload= function(){
ctx.drawImage(image,100,100)
}
}
}
var fileInput = document.getElementById("upload-image");
fileInput.addEventListener("change",function(e){
var files = this.files
showThumbnail(files)
},false)
HTML:
<input type="file" id="upload-image" multiple="multiple"></input>
<div id="thumbnail"></div>
You just need the input field and The div to display the thumbnail image, and on change for the input field will call showThumbnail function which will append img inside the "thumbnail" div.
You can do it with Simple javascript...
assign the selected image path.. to image tag prefixing the file://, n it works the way you want it to be