Load page from one template and add content from another template

[latimba]

Hello,

I would like to reuse a template containing an ons-page and an ons-toolbar, rather than putting the same ons-toolbar code into every html page.
Is that possible?

I have this template in a separate html file:

<ons-page id="pageTemplate">
    <ons-toolbar fixed-style>
        <div class="left appDefaultColors">
            <ons-toolbar-button onclick="App.showMenu()">
                <ons-icon icon="md-menu"></ons-icon>
            </ons-toolbar-button>
        </div>
        <div id="pageTitle" class="center appDefaultColors bold">AppTitle</div>
    </ons-toolbar>
    <div id="contentFromTemplate">Content from another template here.</div>
</ons-page>

I load the page in an <ons-splitter/> like this:

var content = document.getElementById('content');
var menu = document.getElementById('menu');
content.load("pageTemplate.html")
      .then(menu.close.bind(menu));

I would like to set the innerHTML of the “contentFromTemplate” div - or use some other method to dynamically add content.
It seems to me that the easiest way would be to change the ons-page id at this point. Then I could handle everything else on the init event.
I tried

var content = document.querySelector('ons-splitter-content')

right after content.load. But the content has still the old page content at this point.

How can I get a handle on the page which has just been loaded? Or is my approach completely wrong and I should use a different pattern?

Thanks for any help!

[emccorson]

Are you not able to get a reference to the loaded content in the callback promise from content.load?

content.load("pageTemplate.html")
      .then(              // <----- can you get a reference to the content in here?
      );

What is document.querySelector returning if you call it in the promise callback?

[latimba]

@emccorson
Thanks a lot, you are right, I used the promise wrong.
For others who have the same problem, here is how it looks for me now:

var content = document.getElementById('content');
var menu = document.getElementById('menu');
content.load("pageTemplate.html")
.then(function() {
var page = document.querySelector('ons-splitter-content').lastChild;
page.setAttribute('mode','firstpage'); //this is used to know which content should be filled into the template.
menu.close();
});

That works for me. Thank you!