i am trying to add facebook share dialog into my ios application and i found the official page from facebook on how to do it, but i run into a problem about ContentProtocol. i dont know what that is. here is the link to the guidence that i use . it is pretty straight forward. basically just install the pod facebookshare, import it and add few line of code, but i got problem on 'myContent'
here is the code
import FacebookShare
let shareDialog = ShareDialog(content: myContent)
shareDialog.mode = .Native
shareDialog.failsOnInvalidData = true
shareDialog.completion = { result in
// Handle share results
}
try shareDialog.show()
here is the link
https://developers.facebook.com/docs/swift/sharing/share-dialog
what should i put in the myContent?
I guess next link is explained what you can use as content and how to use it
Content-types
(From documentation) Currently, the Facebook SDK for Swift can share 4 different kinds of content:
Links - Represented by the LinkShareContent object.
Photos - Represented by the PhotoShareContent object.
Videos - Represented by the VideoShareContent object.
Open Graph - Represented by the OpenGraphShareContent object.
you can use FBSDKShareLinkContent
let content : FBSDKShareLinkContent = FBSDKShareLinkContent()
content.contentURL = NSURL(string: "//URL")
content.contentTitle = "MyApp"
content.contentDescription = "//Desc"
content.imageURL = NSURL(string:"//Image URL")
I'm playing with the idea of making a completely JavaScript-based zip/unzip utility that anyone can access from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
I know it'd be better to do it serverside, but this project is just for a bit of fun.
Dragging files into the browser should be easy enough if I take advantage of the various methods available. (Gmail style)
Encoding/decoding should hopefully be fine. I've seen some as3 zip libraries so I'm sure I should be fine with that.
My issue is downloading the files at the end.
window.location = 'data:jpg/image;base64,/9j/4AAQSkZJR....'
this works fine in Firefox but not in Chrome.
I can embed the files as images just fine in chrome using <img src="data:jpg/image;ba.." />, but the files won't necessarily be images. They could be any format.
Can anyone think of another solution or some kind of workaround?
If you also want to give a suggested name to the file (instead of the default 'download') you can use the following in Chrome, Firefox and some IE versions:
function downloadURI(uri, name) {
var link = document.createElement("a");
link.download = name;
link.href = uri;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
delete link;
}
And the following example shows it's use:
downloadURI("data:text/html,HelloWorld!", "helloWorld.txt");
function download(dataurl, filename) {
const link = document.createElement("a");
link.href = dataurl;
link.download = filename;
link.click();
}
download("data:text/html,HelloWorld!", "helloWorld.txt");
or:
function download(url, filename) {
fetch(url)
.then(response => response.blob())
.then(blob => {
const link = document.createElement("a");
link.href = URL.createObjectURL(blob);
link.download = filename;
link.click();
})
.catch(console.error);
}
download("https://get.geojs.io/v1/ip/geo.json","geoip.json")
download("data:text/html,HelloWorld!", "helloWorld.txt");
Ideas:
Try a <a href="data:...." target="_blank"> (Untested)
Use downloadify instead of data URLs (would work for IE as well)
Want to share my experience and help someone stuck on the downloads not working in Firefox and updated answer to 2014.
The below snippet will work in both firefox and chrome and it will accept a filename:
// Construct the <a> element
var link = document.createElement("a");
link.download = thefilename;
// Construct the uri
var uri = 'data:text/csv;charset=utf-8;base64,' + someb64data
link.href = uri;
document.body.appendChild(link);
link.click();
// Cleanup the DOM
document.body.removeChild(link);
Here is a pure JavaScript solution I tested working in Firefox and Chrome but not in Internet Explorer:
function downloadDataUrlFromJavascript(filename, dataUrl) {
// Construct the 'a' element
var link = document.createElement("a");
link.download = filename;
link.target = "_blank";
// Construct the URI
link.href = dataUrl;
document.body.appendChild(link);
link.click();
// Cleanup the DOM
document.body.removeChild(link);
delete link;
}
Cross-browser solutions found up until now:
downloadify -> Requires Flash
databounce -> Tested in IE 10 and 11, and doesn't work for me. Requires a servlet and some customization. (Incorrectly detects navigator. I had to set IE in compatibility mode to test, default charset in servlet, JavaScript options object with correct servlet path for absolute paths...) For non-IE browsers, it opens the file in the same window.
download.js -> http://danml.com/download.html Another library similar but not tested. Claims to be pure JavaScript, not requiring servlet nor Flash, but doesn't work on IE <= 9.
There are several solutions but they depend on HTML5 and haven't been implemented completely in some browsers yet. Examples below were tested in Chrome and Firefox (partly works).
Canvas example with save to file support. Just set your document.location.href to the data URI.
Anchor download example. It uses <a href="your-data-uri" download="filename.txt"> to specify file name.
Combining answers from #owencm and #Chazt3n, this function will allow download of text from IE11, Firefox, and Chrome. (Sorry, I don't have access to Safari or Opera, but please add a comment if you try and it works.)
initiate_user_download = function(file_name, mime_type, text) {
// Anything but IE works here
if (undefined === window.navigator.msSaveOrOpenBlob) {
var e = document.createElement('a');
var href = 'data:' + mime_type + ';charset=utf-8,' + encodeURIComponent(text);
e.setAttribute('href', href);
e.setAttribute('download', file_name);
document.body.appendChild(e);
e.click();
document.body.removeChild(e);
}
// IE-specific code
else {
var charCodeArr = new Array(text.length);
for (var i = 0; i < text.length; ++i) {
var charCode = text.charCodeAt(i);
charCodeArr[i] = charCode;
}
var blob = new Blob([new Uint8Array(charCodeArr)], {type: mime_type});
window.navigator.msSaveOrOpenBlob(blob, file_name);
}
}
// Example:
initiate_user_download('data.csv', 'text/csv', 'Sample,Data,Here\n1,2,3\n');
This can be solved 100% entirely with HTML alone. Just set the href attribute to "data:(mimetypeheader),(url)". For instance...
<a
href="data:video/mp4,http://www.example.com/video.mp4"
target="_blank"
download="video.mp4"
>Download Video</a>
Working example: JSFiddle Demo.
Because we use a Data URL, we are allowed to set the mimetype which indicates the type of data to download. Documentation:
Data URLs are composed of four parts: a prefix (data:), a MIME type indicating the type of data, an optional base64 token if non-textual, and the data itself. (Source: MDN Web Docs: Data URLs.)
Components:
<a ...> : The link tag.
href="data:video/mp4,http://www.example.com/video.mp4" : Here we are setting the link to the a data: with a header preconfigured to video/mp4. This is followed by the header mimetype. I.E., for a .txt file, it would would be text/plain. And then a comma separates it from the link we want to download.
target="_blank" : This indicates a new tab should be opened, it's not essential, but it helps guide the browser to the desired behavior.
download: This is the name of the file you're downloading.
If you only need to actually have a download action, like if you bind it to some button that will generate the URL on the fly when clicked (in Vue or React for example), you can do something as easy as this:
const link = document.createElement('a')
link.href = url
link.click()
In my case, the file is already properly named but you can set it thanks to filename if needed.
For anyone having issues in IE:
dataURItoBlob = function(dataURI) {
var binary = atob(dataURI.split(',')[1]);
var array = [];
for(var i = 0; i < binary.length; i++) {
array.push(binary.charCodeAt(i));
}
return new Blob([new Uint8Array(array)], {type: 'image/png'});
}
var blob = dataURItoBlob(uri);
window.navigator.msSaveOrOpenBlob(blob, "my-image.png");
This code was originally provided by #Yetti on this answer (separate question).
Your problem essentially boils down to "not all browsers will support this".
You could try a workaround and serve the unzipped files from a Flash object, but then you'd lose the JS-only purity (anyway, I'm not sure whether you currently can "drag files into browser" without some sort of Flash workaround - is that a HTML5 feature maybe?)
Coming late to the party, if you'd like to use a function without using the DOM, here it goes, since the DOM might not even be available for whatever reason.
It should be applicable in any Browser which has the fetch API.
Just test it here:
// declare the function
function downloadAsDataURL (url) {
return new Promise((resolve, reject) => {
fetch(url)
.then(res => res.blob())
.then(blob => {
const reader = new FileReader()
reader.readAsDataURL(blob)
reader.onloadend = () => resolve(reader.result)
reader.onerror = err => reject(err)
})
.catch(err => reject(err))
})
}
// simply use it like this
downloadAsDataURL ('https://cdn-icons-png.flaticon.com/512/3404/3404134.png')
.then((res) => {
console.log(res)
})
.catch((err) => {
console.error(err)
})
export const downloadAs = async (url: string, name: string) => {
const blob = await axios.get(url, {
headers: {
'Content-Type': 'application/octet-stream',
},
responseType: 'blob',
});
const a = document.createElement('a');
const href = window.URL.createObjectURL(blob.data);
a.href = href;
a.download = name;
a.click();
};
You can use a clean code solution, inform your url in a constant, and set it as param of open method instead in object window.
const url = "file url here"
window.open(url)
I am using the latest version of TinyMCE and I would like to integrate Google Drive Picker whenever an user clicks on Insert Image.
From the TinyMCE documentation I saw that I should use the file_browser_callback parameter but I am stuck with a couple of problems. First of all, I managed to attach the Google Picker but the Insert Image popup stays on top and there's no way for me to select a file. Even if I solve this problem, how can I set the textbox value from the Google Picker callback function? Below you can see my code, Google Picker code is pretty standard so I won't paste it.
var picker;
tinymce.init({
//other init parameters...
file_browser_callback: function(field_name, url, type, win) {
picker.setVisible(true);
win.document.getElementById(field_name).value = 'my browser value';
}
});
function createPicker() {
// Here I build the Picker...
// var picker = ...
}
function pickerCallback(data) {
//TODO: Find a way to set textbox value with the URL of the Image selected from Drive
}
I think you can hide the modal when you call createPicker():
function createPicker() {
document.getElementById('modal_id').style.display = 'none';
// your picker code here!
}
and then display it back once you get the callback i.e. pickerCallback(data):
function pickerCallback(data) {
document.getElementById('modal_id').style.display = 'block';
var url = 'nothing';
if (data[google.picker.Response.ACTION] == google.picker.Action.PICKED) {
var doc = data[google.picker.Response.DOCUMENTS][0];
url = doc[google.picker.Document.URL];
}
// set the input text value with the URL:
document.getElementById('source_input_id').value = url;
}
Change modal_id to your modal's div id and source_input_id with your source input field's id.
i'm trying to load images from Facebook Albums to my flex app, this is the code called when i click on a FB image:
private var loaderFB:Loader;
private var immCaricata:Bitmap = new Bitmap();
//Function where i pass the url of the FB image clicked
private function getFBImage(src:String):void{
var request:URLRequest;
loaderFB=new Loader();
request=new URLRequest(src);
loaderFB.contentLoaderInfo.addEventListener(Event.COMPLETE,onCompleteFBget);
loaderFB.load(request);
}
private function onCompleteFBget(event:Event):void {
var bitmap_dataFB:BitmapData = new BitmapData(640, 480);
bitmap_dataFB.draw(loaderFB.content);
immCaricata = new Bitmap(bitmap_dataFB);
displayOut.addChild(immCaricata);
}
it doesn't work!
If i pass
displayOut.addChild(loaderFB); //instead displayOut.addChild(immCaricata);
It works like a charm!
My problem is that i need to pass loader content to that bitmap (immCaricata) cause i use it in different other functions.
I tried different solution, but probably i do some mistakes somewhere.
Could you please help me? Hope is all clear.
Thank you so much
EDIT:
The problem was not the syntax but the security policy file, i had to add it:
in init function:
Security.loadPolicyFile("http://graph.facebook.com/crossdomain.xml");
Security.loadPolicyFile("http://profile.ak.fbcdn.net/crossdomain.xml");
and then where i load the image
loaderFB=new Loader();
request=new URLRequest(src);
loaderFB.contentLoaderInfo.addEventListener(Event.COMPLETE,onCompleteFBget);
var lc:LoaderContext = new LoaderContext();
lc.checkPolicyFile = true;
loaderFB.load(request,lc);
controlloImm = true;
Hope is clear and hope it helps someone else. :)
private var loaderFB:Loader;
private var immCaricata:Bitmap;
//Function where i pass the url of the FB image clicked
private function getFBImage(src:String):void{
var request:URLRequest;
loaderFB=new Loader();
request=new URLRequest(src);
loaderFB.contentLoaderInfo.addEventListener(Event.COMPLETE,onCompleteFBget);
loaderFB.load(request);
}
private function onCompleteFBget(event:Event):void {
immCaricata = event.target.content as Bitmap;
displayOut.addChild(immCaricata);
}
Try this if you dont wanna change the loaded image size, hope this will help
I was hunting for an implementations of YUI AutoComplete and I came across this script from the site asklaila.com -
<script type="text/JavaScript">
YAHOO.example.ACJson = new function() {
this.oACDS = new YAHOO.widget.DS_XHR("/AutoComplete.do",
["Suggestions[0].Results","Name"]);
this.oACDS.queryMatchContains = true;
this.oACDS.scriptQueryAppend = "city=Mysore"; // Needed for YWS
function fnCallback(e, args) {
document.searchForm.where.focus();
acSelected = true;
return false;
}
this.oAutoComp = new YAHOO.widget.AutoComplete('what','whatContainer', this.oACDS);
this.oAutoComp.itemSelectEvent.subscribe(fnCallback);
this.oAutoComp.formatResult = function (oResultItem,sQuery) {
return oResultItem[0];
}
this.oAutoComp.queryDelay = 0;
this.oAutoComp.useIFrame = true;
this.oAutoComp.prehighlightClassName = "yui-ac-prehighlight";
this.oAutoComp.minQueryLength = 2;
this.oAutoComp.autoHighlight = false;
this.oAutoComp.textboxFocusEvent.subscribe(function() {
this.oAutoComp.sendQuery("");
});
this.oAutoComp.doBeforeExpandContainer = function(oTextbox, oContainer, sQuery, aResults) {
var pos = YAHOO.util.Dom.getXY(oTextbox);
pos[1] += YAHOO.util.Dom.get(oTextbox).offsetHeight + 2;
YAHOO.util.Dom.setXY(oContainer,pos);
return true;
};
}
</script>
It is implenting the YUI AutoComplete Dropdown. What I want to understand is what this
this.oACDS = new YAHOO.widget.DS_XHR("/AutoComplete.do", ["Suggestions[0].Results","Name"]);
does and its effects on code.
That's using an older version of YUI, but it is setting up a DataSource for the autocomplete to read from. This particular DataSource uses XHR to request information from the server to populate the autocomplete field.
"Autocomplete.do"
Is a relative URL that is being queried by the DataSource every time the autocomplete fires while the user is typing.
["Suggestions[0].Results","Name"]
Is the responseSchema that tells the DataSource how to parse the results from the request to the URL. It needs to know how to parse the data so that it can show the proper results.
this.oACDS = new YAHOO.widget.DS_XHR("/AutoComplete.do", ["Suggestions[0].Results","Name"]);
On every key press, it fetches a json response from the server, and uses it to populate the autocomplete dropdown. The json contains names to display only at this node, "Suggestions[0].Results" in the "name" field.
If you have any trouble, ask ahead. I wrote that piece of code for asklaila.com
I was hunting for implementations of
YUI Autocomplete and I came across
this script...
Why not take a look at YUI AutoComplete page for in-depth examples.
Yahoo! UI Library: AutoComplete