I have a site that helps people create captions for their Instagram posts and evaluate hashtags. One of the features is as simple as making links of the hashtags to Instagram in order to see what types of images they contain. As I don't want the input they have just entered and evaluated to disappear I have made the links open in new tabs by using target="_blank" - this works perfectly on desktops but on iPhones nothing happens when you try to click on the hashtag links. I suspect that it might be some sort of protection by disabling target="_blank" links, but I am not sure. Everything is just simple html links. I have tried adding rel="noreferrer" but that didn't make any difference.
So if you have an explanation as to why it does not work that would helpful, but even more helpful would be a solution as to how I can obtain what I want on mobile devices as well, which is simply put: open a link in a new tab so that I don't lose input/state of page that I have just presented to the user.
Alternative solutions to the above issue are also very much appreciated.
Try this js code:
function openTab(url) {
// Create link in memory
var a = window.document.createElement("a");
a.target = '_blank';
a.href = url;
// Dispatch fake click
var e = window.document.createEvent("MouseEvents");
e.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
a.dispatchEvent(e);
};
openTab('http://www.google.com');
you can find the original post here: http://whoknew.dk/programmatically-opening-a-new-tab-window-on-mobile-safari-55.htm
as dispatchEvent is deprecated, you could use:
function openTab(url) {
// Create link in memory
var a = window.document.createElement("a");
a.target = '_blank';
a.href = url;
//click
a.click();
};
Related
I have an image which when click, I want to link to a mailto:
<a id="mailto" href="mailto:hfms#live.com.my" target="_newtab" >
<img src="#Url.Content("~/Content/HomePage/email.png")" alt="email" /></a>
However, currently once its clicked, it will launch the email option to choose a mailto application, and once i choose, the mailto link is open in the current tab. This will cause user to leave the application.
So, I want the page to sent email (by gmail, yahoo, etc ) is either open in new tab or in a window. Any idea how to do this? I tried both target="_newtab" and target="_blank" but both didn't work.
Any help will be much appreciated.. Thanks...
(jQuery method is also acceptable if there is no other way, thanks)
this information is outdated, now it is possible to do so i believe, since gmail and others now work via browser links. there is however the problem that you would only want it to open in a new tab if NOT opening in a system mail client, and open in a new tab if it is a webmail client, otherwise for example Outlook users see a blank tab appear, which is disorienting, especially since they are Outlook users.
You don't need Javascript/Jquery for this. A standard link works (except Firefox v30+ due to a bug, see below).
<a href="mailto:example#example.com" target="_blank">
As of Firefox 30, does not work in Firefox due to a bug. It opens in the same tab AND replaces history so hitting back will not bring you back to the page where the mailto: link was.
This answer is based on this answer Open the href mailto link in new tab / window.
Right now, new browsers support some web mail interfaces (Like Gmail, Yahoo Mail, AoL, etc.).
So we can simply open a new window (Support older browser, new browsers just will open a new tab) and add a fallback (In case of non-javascript user) using preventDefault and default link redirection.
http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-flow-cancelation
https://developer.mozilla.org/es/docs/DOM/event.preventDefault
https://developer.mozilla.org/en-US/docs/Web/API/Window.open
Like so:
<a onClick="javascript:window.open('mailto:mail#domain.com', 'mail');event.preventDefault()" href="mailto:mail#domain.com">Send a e-mail</a>
http://jsfiddle.net/cNUNP/
Credit to https://stackoverflow.com/a/9880404/1107020
Guess that's all.
Greetings, Marcos.
mailto calls the users default email client. It does not open a window or tab in any instance. If you want to use a window or tab you need to configure a form and allow the form to open in your window/tab. Of course, you'll have to configure the form to send mail with whatever method is available on your server.
I know this is an old question, but this thread had the best set of answers if found. I modified Marcos's Answer above to also close the blank tab that is created if the client has an external mail handler
reference answer
JS (w\ jQuery for event handlers)
$(document).on('click', 'a[href^=mailto]', function(e) {
var checkClose, checkLoaded, event, href, i, len, loadEvents, results, t, wndw;
e.preventDefault();
href = this.href;
wndw = window.open(href, 'mail');
checkClose = function() {
console.log('checkClose');
try {
wndw.location.href;
return wndw.close();
} catch (error) {
return console.log('webmail');
}
};
t = setTimeout(checkClose, 5000);
try {
checkLoaded = function() {
console.log('loaded');
clearTimeout(t);
return t = setTimeout(checkClose, 2000);
};
wndw.onload = checkLoaded;
loadEvents = ["DomContentLoaded", "load", "beforeunload", "unload"];
results = [];
for (i = 0, len = loadEvents.length; i < len; i++) {
event = loadEvents[i];
results.push(wndw.addEventListener(event, checkLoaded));
}
return results;
} catch (error) {
return checkLoaded();
}
});
jsfiddle
Can confirm that '_blank' is still not working in Firefox for an emailto link. Instead use an onClick function that will do something like this:
window.open('mailto:'+email+'?subject='+subject);
Variant 1 (JavaScript):
<script>
// Open mailto links in a new tab
function mailto(email, subject, body) {
var url;
url = 'mailto:' + email;
url += '?subject=' + subject;
url += '&body=' + body;
window.open(url);
}
</script>
test#gmail.com
Variant 2 (JavaScript):
<script>
// Open mailto links in a new tab
function mailto(th) {
var url = th.getAttribute('href');
window.open(url);
}
</script>
test#gmail.com
Variant 3 (jQuery):
<script>
// Open mailto links in a new tab
$('#mailto').click(function (e) {
e.preventDefault();
var url = $(this).attr('href');
window.open(url);
});
</script>
test#gmail.com
Variant 4 (jQuery):
<script>
// Open mailto links in a new tab
$("a[href^='mailto:']").click(function(e) {
e.preventDefault();
var href = $(this).attr('href');
var target = $(this).attr('target');
window.open(href, target ? target : '_self');
});
</script>
test#gmail.com
HTML target Attribute: https://www.w3schools.com/tags/att_a_target.asp
Have you tried 'middle-click' ( "Open in new tab" ) ?
It works for me
(http://forums.mozillazine.org/viewtopic.php?f=7&t=1842595)
although it seems particularly strange to ask user to Middle click
Anyway I've found a pseudo solution that seems to work in FF 25/ Chrome 35
1.- Set up your link something like this:
<a href="javascript:void()"
class="mailToLink"
data-mail="mailaddr#domain.com">mailaddr#domain.com </a>
2.- Using javascript ( with jquery in the example) setup an onlclick event like:
$('.mailToLink').on('click', function(){
mailto=$(this).data('mail');
w=window.open('','_blank','',true);
w.location.href='mailto:'+mailto;
w.focus();
});
This opens a blank new window/tab and later changes its location, so the mail protocol handler is unable toto act until the new window is already opened
Not tested with Local mail client ( Outlook et al.)
There is a cheap html-hack to this problem.....
The link on one page...
Mail
On mailto.html....
<meta HTTP-EQUIV="REFRESH" content="0; url=mailto:who#website.com">
If nothing pops up click.....Mail!
_blank opens a new tab/window and the metatag does the rest. link as fallback offcourse.
I'm using nodecellar to get a better understanding of backbone.js and I've come across a problem which was answered in great detail in a similar question, however, the answer doesn't seem to be working for me:
What i'm trying to do.
Using Nodecellars wineview, i'm trying to utilise the drag and drop feature, to upload an image. I've made a note of a previous very well answered question which basically states that you have to disable the default behaviour of on dragover, so I have the following in my wine view:
events: {
"change" : "change",
"click .save" : "beforeSave",
"click .delete" : "deleteWine",
"drop #profile" : "dropHandler",
"dragover #profile" : "dragover",
'dragenter #profile' : 'alertMe'
},
then my dragover event looks like this:
dragover: function(event){
console.log('drag over event called');
event.preventDefault();
},
This is fine and working as the console log is called when it fires. and the draghandler looks like this:
dropHandler: function (event) {
event.stopPropagation();
event.preventDefault();
var e = event.originalEvent;
e.dataTransfer.dropEffect = 'copy';
this.pictureFile = e.dataTransfer.files[0];
// Read the image file from the local file system and display it in the img tag
var reader = new FileReader();
reader.onloadend = function () {
$('#profile').attr('src', reader.result);
$('#picText').html('Picture added, select save to complete changes.')
};
reader.readAsDataURL(this.pictureFile);
}
The problem
The code works, however it doesn't upload the image or save the details in the model to the database. so once I move away then select the wine again the image is back to what it was originally.
I've done some research into the HTML5 fileReader api, but there isn't much on how it uploads, or where it uploads to.
And this is where I am now, I'm looking to you guys for suggestions on how to ensure the model saves the image url, and the image is uploaded to the pics folder.
How is the best way to go about this.
Is the HTML 5 fileReader API the best option to go with?
Thank you for your feedback.
Jay
You are missing in your function dropHandler the call to your model to set the property for the image you want to save.
that is we have opened many tabs.In that tabs i want to search specific tab. Please tell if any ext or option or add-on in chrome or firefox.
Firefox has this functionality built in. If you just start typing in the URL bar and the first character you type is % followed by a space, the rest of what you type will be treated as a search on the titles and urls of open tabs in all Firefox windows.
I'm not sure if this is the site to be asking for help finding extensions that do end user tasks such as this so I'll answer your question explicitly as well as explain how to do it programatically.
The short answer is, yes one extension that will allow you to do this can be found here:
Tab Title Search
The long answer is, in order to find all tabs with a certain name, you need to use the chrome tabs API
I whipped up a short piece of javascript to demonstrate how to have an extension that will create a popup with a search box that you type the desired tab title into. If the tab is found, it will be listed below the search box. If you click on the listing, you will switch to the tab.
// Function to search for tabs
function searchtabs() {
chrome.tabs.query({
title: ""
},
// Callback to process results
function(results) {
// Place holder for the tab to process
var foundTab = null;
// Text to match against
var queryText = document.getElementById("textToSearchInput").value;
// Div to place divs of matched title in
var queryAnswerDiv = document.getElementById("foundTabsDiv");
// Clear the current children
while (queryAnswerDiv.hasChildNodes()) {
queryAnswerDiv.removeChild(queryAnswerDiv.lastChild);
}
// Iterate over all the results
for (var i = 0; i < results.length; i++) {
// Keep track of the tab that is currently being processed
foundTab = results[i];
// If we have a title containing our string...
if (foundTab.title.indexOf(queryText) > -1) {
// Create a new div
var tabDiv = document.createElement("div");
// Set its content to the tabs title
tabDiv.innerHTML = foundTab.title;
// Let it know what the tabs id is
tabDiv.tabToSwitchTo = results[i].id;
// Allow for users to click on the representing div to switch to it
tabDiv.onclick = function() {
// Make the tab selected
chrome.tabs.update(this.tabToSwitchTo, {
selected: true
});
};
// Append the created div to our answer div
queryAnswerDiv.appendChild(tabDiv);
}
}
});
}
document.addEventListener('DOMContentLoaded', function() {
var inputField = document.getElementById("textToSearchInput");
inputField.focus();
inputField.onkeydown = searchtabs;
});
Also, if this is more what you are looking for rather than the extension that I linked, let me know and I can pack this extension.
Edit:
Fixed an error in using the wrong ID to get the input field as well as not getting the first letter of the title (use indexOf() > -1)
An extension that does this is Tab Hero for Chrome ($0.99 Chrome extension). It searches through all of the open tabs (across multiple windows) and offers to switch to the filtered tab. Try and see if it works for you.
(Question1, question2 and question3 looks how to force users open link in new tab)
But in my situation I visit some sites regularly and they have links like this:
<a href='javascript:window.open("/view.php?id=1234","_self")'>Link name</a>
This type of link makes me impossible to open link in new tab with a mouse click. Every time I see these links, I duplicate the tab in Chrome and click link inside the cloned tab. And go back to original tab and continue to surf. Is it possible to open these links in new tab with a chrome extension, js code or something?
You can try one of the links here: http://bit.ly/12dUk4V
. . The problem is that these links can be kind of "about:blank" because they are not specified in the href attribute normally, so it breaks your expected behavior when using ctrl+click, middle click or something alike. Sometimes sites links to "javascript:" pseudo-protocol, sometimes the link is for "#" with a "onclick" trigger... It depends on the situation.
. . For this specific case it's easy enough to write a user script that will rewrite these kind of links, if you're willing to use something like Tampermonkey:
// ==UserScript==
// #name SelfLinks Fixer
// #namespace http://dnun.es./
// #version 0.1
// #description This script rewrites "window.open(..., '_self')" links so that you can click them as you wish.
// #match http://libgen.info/*
// #copyright 2013, http://dnun.es.
// ==/UserScript==
var tRegExp = '^javascript: *'+
'(window\\.)?open\\('+
' *(([\'"])([^\\3]+)\\3) *,'+
' *[\'"]_self[\'"] *'+
'\\) *;? *$';
var fixLinksCheck = new RegExp(tRegExp);
var as = document.getElementsByTagName('a'), i = 0, n = as.length, a;
for (;i<n;i++) { a = as[i];
if (fixLinksCheck.test(a.href)) { //damn you _self link!
a.href = a.href.replace(fixLinksCheck, '$4');
}
}
. . This code "fixes" only the "_self" links by changing them to normal links. You can then click them with middle button, holding ctrl/shift or whatever. It also leave the "_blank" or "_top" links untouched.
Yes, it is possible. All you need is to inject a simple line of JavaScript code in every page. I had done it before in a Firefox extension.
You just need to override window.open method:
var open_= window.open;
window.open = function(url, name, opts) {
if (name === '_self') { name = '_blank'; }
open_(url, '_blank', opts);
};
Complete code on JsFiddle: http://jsfiddle.net/dp4Uz/
I see that Lifehacker is able to change the url while using AJAX to update part of the page. I guess that can be implemented using HTML5 or history.js plugin, but I guess lifehacker is using neither.
Does any one has a clue on how they do it?
I am new to AJAX and just managed to update part of the page using Ajax.
Thank you #Robin Anderson for a detailed step by step algo. I tried it and it is working fine. However, before I can test it on production, I would like to run by you the code that I have. Did I do everything right?
<script type="text/javascript">
var httpRequest;
var globalurl;
function makeRequest(url) {
globalurl = url;
/* my custom script that retrieves original page without formatting (just data, no templates) */
finalurl = '/content.php?fname=' + url ;
if(window.XMLHttpRequest){httpRequest=new XMLHttpRequest}else if(window.ActiveXObject){try{httpRequest=new ActiveXObject("Msxml2.XMLHTTP")}catch(e){try{httpRequest=new ActiveXObject("Microsoft.XMLHTTP")}catch(e){}}}
/* if no html5 support, just load the page without ajax*/
if (!(httpRequest && window.history && window.history.pushState)) {
document.href = url;
return false;
}
httpRequest.onreadystatechange = alertContents;
alert(finalurl); /* to make sure, content is being retrieved from ajax */
httpRequest.open('GET', finalurl);
httpRequest.send();
}
/* for support to back button and forward button in browser */
window.onpopstate = function(event) {
if (event.state !== null) {
document.getElementById("ajright").innerHTML = event.state.data;
} else {
document.location.href = globalurl;
return false;
};
};
/* display content in div */
function alertContents() {
if (httpRequest.readyState === 4) {
if (httpRequest.status === 200) {
var stateObj = { data: httpRequest.responseText};
history.pushState(stateObj, "", globalurl);
document.getElementById("ajright").innerHTML = httpRequest.responseText;
} else {
alert('There was a problem with the request.');
}
}
}
</script>
PS: I do not know how to paste code in comment, so I added it here.
It is not an requirement to have the markup as HTML5 in order to use the history API in the browser even if it is an HTML5 feature.
One really quick and simple implementation of making all page transistions load with AJAX is:
Hook up all links except where rel="external" exist to the function "ChangePage"
When ChangePage is triggered, check if history API is supported in the browser.
If history API isn't supported, do either push a hashtag or make a normal full page load as fallback.
If history API is supported:
Prevent the normal link behaviour.
Push the new URL to the browser history.
Make a AJAX request to the new URL and fetch its content.
Look for your content div (or similar element) in the response, take the HTML from that and replace the HTML of the corresponding element on the current page with the new one.
This will be easy to implement, easy to manage caches and work well with Google's robots, the downside is that is isn't that "optimized" and it will be some overhead on the responses (compared to a more complex solution) when you change pages.
Will also have backward compatibility, so old browsers or "non javascript visitors" will just get normal page loads.
Interesting links on the subject
History API Compatibility in different browsers
Mozillas documentation of the History API
Edit:
Another thing worth mentioning is that you shouldn't use this together with ASP .Net Web Forms applications, will probably screw up the postback handling.
Code addition:
I have put together a small demo of this functionality which you can find here.
It simply uses HTML, Javascript (jQuery) and a tiny bit of CSS, I would probably recommend you to test it before using it. But I have checked it some in Chrome and it seems to work decent.
Some testing I would recommend is:
Test in the good browsers, Chrome and Firefox.
Test it in a legacy browser such as IE7
Test it without Javascript enabled (just install Noscript or similar to Chrome/Firefox)
Here is the javascript I used to achieve this, you can find the full source in the demo above.
/*
The arguments are:
url: The url to pull new content from
doPushState: If a new state should be pushed to the browser, true on links and false on normal state changes such as forward and back.
*/
function changePage(url, doPushState, defaultEvent)
{
if (!history.pushState) { //Compatability check
return true; //pushState isn't supported, fallback to normal page load
}
if (defaultEvent != null) {
defaultEvent.preventDefault(); //Someone passed in a default event, stop it from executing
}
if (doPushState) { //If we are supposed to push the state or not
var stateObj = { type: "custom" };
history.pushState(stateObj, "Title", url); //Push the new state to the browser
}
//Make a GET request to the url which was passed in
$.get(url, function(response) {
var newContent = $(response).find(".content"); //Find the content section of the response
var contentWrapper = $("#content-wrapper"); //Find the content-wrapper where we are supposed to change the content.
var oldContent = contentWrapper.find(".content"); //Find the old content which we should replace.
oldContent.fadeOut(300, function() { //Make a pretty fade out of the old content
oldContent.remove(); //Remove it once it is done
contentWrapper.append(newContent.hide()); //Add our new content, hidden
newContent.fadeIn(300); //Fade it in!
});
});
}
//We hook up our events in here
$(function() {
$(".generated").html(new Date().getTime()); //This is just to present that it's actually working.
//Bind all links to use our changePage function except rel="external"
$("a[rel!='external']").live("click", function (e) {
changePage($(this).attr("href"), true, e);
});
//Bind "popstate", it is the browsers back and forward
window.onpopstate = function (e) {
if (e.state != null) {
changePage(document.location, false, null);
}
}
});
The DOCTYPE has no effect on which features the page can use.
They probably use the HTML5 History API directly.