I'm using ionic framework to develop native app. Here, I'm having default header in all the pages. When switching over to second page, I need in-app browser to view the external content.
So, I used window.open
<a href="#" onclick="window.open('https://google.com','_blank','location=yes','closebuttoncaption=Return');">Click Here to view inapp browser</a>
But, I need the header to be constant when I am viewing the content in in-app browser.
Is it possible in ionic framework? I don't need iframe for this. It is heavy weighted in html.
Updated:
I m having a html file which I m injecting to iframe. like
<div id="header"></div>
<iframe src="serveraddress/index.html"></iframe>
Instead of iframe, is there anything which remains the header constant? If I use in-app browser, my header was invisible.
EDIT
I had disregarded the in-app browser element in your question. Here is an update, specifically for in-app browser.
DISCLAIMER: none of the code provided below has been tested; however, this answer gives you guidelines to implement your solution.
Instead of iframe, is there anything which remains the header constant? If I use in-app browser, my header was invisible.(...)Header needs to be constant when I'm viewing external website content.
When you use in-app browser:
<a href="#" onclick="window.open('https://google.com','_blank','location=yes','closebuttoncaption=Return');">Click Here to view inapp browser</a>
it opens a popup which displays the requested URL.
You would like to have your own header displayed in the in-app browser window. I see two ways to do this:
A) You could customise the webpage you want to display in your in-app browser beforehand, and store it on your server.
The customised webpage could have included some third party HTML, using one of the 4 techniques mentioned below. See techniques 1, 2a, 2b and 2c.
Say you store a customised webpage on your server which is like so:
<div id="header"></div>
<div id="main"></div>
The page is stored on your own server, at url: www.myserver.com
If you make your in-call like: window.open('http://www.myserver.com',...)
you would display your customised page, with your own headers.
B) You could fetch the third party webpage with in-app browser, keep it hidden, modify it, then display it
Please read this Cordova doc page.
To open a window and keep it hidden:
var ref = window.open(url, target,'hidden=yes');
To execute a script when the hidden in-app window is ready:
var iabRef = null;
function insertMyHeader() {
iabRef.executeScript({
code: "var b=document.querySelector('body'); var a=document.createElement('div');document.createTextNode('my own header!'); a.appendChild(newContent);b.parentNode.insertBefore(a,b);"
}, function() {
alert("header successfully added");
});
}
function iabClose(event) {
iabRef.removeEventListener('loadstop', replaceHeaderImage);
iabRef.removeEventListener('exit', iabClose);
}
function onDeviceReady() {
iabRef = window.open('http://apache.org', '_blank', 'location=yes');
iabRef.addEventListener('loadstop', insertMyHeader);
iabRef.addEventListener('exit', iabClose);
}
Now you can show the in-app window: ref.show();
APPENDIX: 4 techniques to use third-party content in your apps:
e.g. Bing Search API
Some websites provide an API, which responds with bare information, usually returned in the form of a JSON
string.
You can use a JavaScript templator like Mustache to create your HTML from the JSON response you got, either server-side or client side. Then you open your popup:
<div id="header"></div>
<div id="myTemplatedHTML"></div>
If you go for the client-side option, I suggest you read open window in javascript with html inserted
2a. If the third-party website does not provide an API: cross-site javascript call
Please read this thread: Loading cross domain html page with jQuery AJAX
You would have in your HTML:
<div id="header"></div>
<div id="myLoadedHTML"></div>
And the myLoadedHTML would be filled with HTML fetched from the third-party website.
I recommend to use a tool like YQL to fetch the HTML. YQL will let you make complex queries to fetch just the bits of HTML you need.
2b. If the third-party website does not provide an API: embed
Please check this thread: alternatives to iframes with html5
It reads that: if you want to display cross domain HTML contents (styled with CSS and made interactive with javascript) iframe stays as a good way to do
It also mentions the embed tag:
<embed src="http://www.somesite.com" width=200 height=200 /></embed>
In your case, you could probably achieve your goal with something like:
<div id="header"></div>
<embed src="http://www.somesite.com" width=200 height=200 /></embed>
2c. If the third-party website does not provide an API: iframe
Alternatively, should you want to display a third-party website in an iframe, and then modify the display with your own content, I suggest you check this StackOverflow thread: Cannot modify content of iframe, what is wrong?
In your particular case, say you named your iframe myIframe
:
<iframe src="serveraddress/index.html" id="myIframe"></iframe>
You could then achieve your goal with something like this:
$(document).ready(function(){
$('#myIframe').ready(function(){
$(this).contents().find('body').before('<div id="header"></div>');
});
});