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Added some additional functionality #9

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Added some additional functionality #9

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b62d3f2
Added Overflow Callback
damienhoneyford Aug 24, 2020
248253f
Added a way to recalculate overflow breakpoints
damienhoneyford Aug 24, 2020
f1bdd07
Fixed a bug in new Breakpoint Recalculation function
damienhoneyford Aug 24, 2020
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23 changes: 22 additions & 1 deletion src/javascripts/nav-priority.js
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,8 @@
'</li>',
containerSelector: 'ul',
containerWidthOffset: 10,
threshold: 4
threshold: 4,
menuItemOverflow: null
}

/*
Expand Down Expand Up @@ -189,6 +190,9 @@
NavPriority.prototype.addToOverflow = function (item, breakpoint) {
this.overflowList.insertBefore(item, this.overflowList.firstChild)

if (typeof (this.options.menuItemOverflow) === 'function')
this.options.menuItemOverflow(item, true)

// ADD: link to overflow menu items
this.overflowBreakpoints.unshift(breakpoint)

Expand All @@ -215,6 +219,9 @@
// Note: AppendChild is buggy with nested submenu
this.navList.insertBefore(item, this.overflowDropdown.parentNode)

if (typeof (this.options.menuItemOverflow) === 'function')
this.options.menuItemOverflow(item, false)

return this.overflowBreakpoints
}

Expand Down Expand Up @@ -305,6 +312,20 @@
return this.element
}

NavPriority.prototype.recalculateBreakpoints = function () {
// Remove items, which can be added back to the menu
while (this.overflowList.children.length) {
this.removeFromOverflow(this.overflowList.children[0], this.overflowBreakpoints[0])
}
// Calculate navigation breakpoints
var newBreakpoints = this.getBreakpoints()
// Check against current breakpoints to determine whether anything has changed
if (newBreakpoints.length !== this.breakpoints || this.breakpoints.some(function (b, idx) { return newBreakpoints[idx] !== b })) {
this.breakpoints = newBreakpoints
}
this.reflowNavigation()
}

/*
* Priority navigation plugin method
*/
Expand Down