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Move service and user nav to proposition header

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This commit moves user-related navigation into the proposition header (the black
bar) at the top of the site. It adds some custom SASS to override GOV.UK
template and align these navigation items to the right (because it looks
better).

It then removes the service chooser dropdown (and its associated SASS and JS) in
favour of a link alongside the user-related navigation items. ‘Switch service’
is the best language for this that we’ve come up with so far.

This means that the only way of adding a new service is from the `/services`
page. So this commit removes the redirect if you land on this page with only one
service (else it would prevent you from ever being able to add more).
This commit is contained in:
Chris Hill-Scott
2016-02-01 11:26:38 +00:00
parent 674e40d8d4
commit 3617f2e936
12 changed files with 45 additions and 308 deletions
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199
app/assets/javascripts/detailsPolyfill.js
View File

@@ -1,199 +0,0 @@
// Copied from:
// https://github.com/alphagov/govuk_elements/blob/4926897dc7734db2fc5e5ebb6acdc97f86e22e50/public/javascripts/vendor/details.polyfill.js
// When this is moved to GOV.UK Frontend Toolkit, we should import it from there
// instead
// <details> polyfill
// http://caniuse.com/#feat=details
// FF Support for HTML5's <details> and <summary>
// https://bugzilla.mozilla.org/show_bug.cgi?id=591737
// http://www.sitepoint.com/fixing-the-details-element/
(function () {
'use strict';
var NATIVE_DETAILS = typeof document.createElement('details').open === 'boolean';
// Add event construct for modern browsers or IE
// which fires the callback with a pre-converted target reference
function addEvent(node, type, callback) {
if (node.addEventListener) {
node.addEventListener(type, function (e) {
callback(e, e.target);
}, false);
} else if (node.attachEvent) {
node.attachEvent('on' + type, function (e) {
callback(e, e.srcElement);
});
}
}
// Handle cross-modal click events
function addClickEvent(node, callback) {
// Prevent space(32) from scrolling the page
addEvent(node, 'keypress', function (e, target) {
if (target.nodeName === 'SUMMARY') {
if (e.keyCode === 32) {
if (e.preventDefault) {
e.preventDefault();
} else {
e.returnValue = false;
}
}
}
});
// When the key comes up - check if it is enter(13) or space(32)
addEvent(node, 'keyup', function (e, target) {
if (e.keyCode === 13 || e.keyCode === 32) { callback(e, target); }
});
addEvent(node, 'mouseup', function (e, target) {
callback(e, target);
});
}
// Get the nearest ancestor element of a node that matches a given tag name
function getAncestor(node, match) {
do {
if (!node || node.nodeName.toLowerCase() === match) {
break;
}
} while (node = node.parentNode);
return node;
}
// Create a started flag so we can prevent the initialisation
// function firing from both DOMContentLoaded and window.onload
var started = false;
// Initialisation function
function addDetailsPolyfill(list) {
// If this has already happened, just return
// else set the flag so it doesn't happen again
if (started) {
return;
}
started = true;
// Get the collection of details elements, but if that's empty
// then we don't need to bother with the rest of the scripting
if ((list = document.getElementsByTagName('details')).length === 0) {
return;
}
// else iterate through them to apply their initial state
var n = list.length, i = 0;
for (i; i < n; i++) {
var details = list[i];
// Save shortcuts to the inner summary and content elements
details.__summary = details.getElementsByTagName('summary').item(0);
details.__content = details.getElementsByTagName('div').item(0);
// If the content doesn't have an ID, assign it one now
// which we'll need for the summary's aria-controls assignment
if (!details.__content.id) {
details.__content.id = 'details-content-' + i;
}
// Add ARIA role="group" to details
details.setAttribute('role', 'group');
// Add role=button to summary
details.__summary.setAttribute('role', 'button');
// Add aria-controls
details.__summary.setAttribute('aria-controls', details.__content.id);
// Set tabIndex so the summary is keyboard accessible for non-native elements
// http://www.saliences.com/browserBugs/tabIndex.html
if (!NATIVE_DETAILS) {
details.__summary.tabIndex = 0;
}
// Detect initial open state
var openAttr = details.getAttribute('open') !== null;
if (openAttr === true) {
details.__summary.setAttribute('aria-expanded', 'true');
details.__content.setAttribute('aria-hidden', 'false');
} else {
details.__summary.setAttribute('aria-expanded', 'false');
details.__content.setAttribute('aria-hidden', 'true');
if (!NATIVE_DETAILS) {
details.__content.style.display = 'none';
}
}
// Create a circular reference from the summary back to its
// parent details element, for convenience in the click handler
details.__summary.__details = details;
// If this is not a native implementation, create an arrow
// inside the summary
if (!NATIVE_DETAILS) {
var twisty = document.createElement('i');
if (openAttr === true) {
twisty.className = 'arrow arrow-open';
twisty.appendChild(document.createTextNode('\u25bc'));
} else {
twisty.className = 'arrow arrow-closed';
twisty.appendChild(document.createTextNode('\u25ba'));
}
details.__summary.__twisty = details.__summary.insertBefore(twisty, details.__summary.firstChild);
details.__summary.__twisty.setAttribute('aria-hidden', 'true');
}
}
// Define a statechange function that updates aria-expanded and style.display
// Also update the arrow position
function statechange(summary) {
var expanded = summary.__details.__summary.getAttribute('aria-expanded') === 'true';
var hidden = summary.__details.__content.getAttribute('aria-hidden') === 'true';
summary.__details.__summary.setAttribute('aria-expanded', (expanded ? 'false' : 'true'));
summary.__details.__content.setAttribute('aria-hidden', (hidden ? 'false' : 'true'));
if (!NATIVE_DETAILS) {
summary.__details.__content.style.display = (expanded ? 'none' : '');
var hasOpenAttr = summary.__details.getAttribute('open') !== null;
if (!hasOpenAttr) {
summary.__details.setAttribute('open', 'open');
} else {
summary.__details.removeAttribute('open');
}
}
if (summary.__twisty) {
summary.__twisty.firstChild.nodeValue = (expanded ? '\u25ba' : '\u25bc');
summary.__twisty.setAttribute('class', (expanded ? 'arrow arrow-closed' : 'arrow arrow-open'));
}
return true;
}
// Bind a click event to handle summary elements
addClickEvent(document, function(e, summary) {
if (!(summary = getAncestor(summary, 'summary'))) {
return true;
}
return statechange(summary);
});
}
// Bind two load events for modern and older browsers
// If the first one fires it will set a flag to block the second one
// but if it's not supported then the second one will fire
addEvent(document, 'DOMContentLoaded', addDetailsPolyfill);
addEvent(window, 'load', addDetailsPolyfill);
})();