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July 26, 2016 13:54
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My simple and usefull knockout binding handlers I always use
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// Requires BlockUI | |
ko.bindingHandlers.blockUI = { | |
update: function (element, valueAccessor, allBindings, viewModel, bindingContext) { | |
var isEnabled = ko.unwrap(valueAccessor()) || false; | |
if (isEnabled) { | |
$(element).block(); | |
} | |
else { | |
$(element).unblock(); | |
} | |
} | |
}; | |
ko.bindingHandlers.href = { | |
update: function(element, valueAccessor, allBindings, data, context) { | |
ko.bindingHandlers.attr.update(element, function() { | |
return { href: valueAccessor() } | |
}); | |
} | |
}; | |
// Requires accounting.js | |
ko.bindingHandlers.currency = { | |
update: function (element, valueAccessor, allBindings) { | |
ko.bindingHandlers.text.update(element, function() { | |
return accounting.formatMoney(valueAccessor()); | |
}); | |
} | |
}; | |
// Requires Bootstrap Switch | |
ko.bindingHandlers.bsSwitch = { | |
init: function (element, valueAccessor, allBindings, viewModel, bindingContext) { | |
$(element).on('switchChange.bootstrapSwitch', function (e, state) { | |
var value = valueAccessor(); | |
value(state); | |
}); | |
ko.utils.domNodeDisposal.addDisposeCallback(element, function () { | |
$(element).bootstrapSwitch("destroy"); | |
}); | |
ko.bindingHandlers.checked.init(element, valueAccessor); | |
}, | |
update: function (element, valueAccessor, allBindings, viewModel, bindingContext) { | |
var currentValue = ko.unwrap(valueAccessor()); | |
$(element).bootstrapSwitch('state', currentValue, true); | |
} | |
}; | |
/*http://eonasdan.github.io/bootstrap-datetimepicker*/ | |
ko.bindingHandlers.bsDatePicker = { | |
init: function (element, valueAccessor, allBindings, viewModel, bindingContext) { | |
var options = ko.unwrap(valueAccessor()); | |
$.extend(options, { pickTime: false }); | |
var dateValueObserver = allBindings().dateValue; | |
$(element).datetimepicker(options); | |
$(element).on('dp.change', function (e) { | |
$(element).data("DateTimePicker").hide(); | |
dateValueObserver(moment(e.date).format(options.format)); | |
}); | |
ko.utils.domNodeDisposal.addDisposeCallback(element, function() { | |
$(element).datetimepicker("destroy"); | |
}); | |
} | |
}; | |
/*http://eonasdan.github.io/bootstrap-datetimepicker*/ | |
ko.bindingHandlers.bsTimePicker = { | |
init: function (element, valueAccessor, allBindings, viewModel, bindingContext) { | |
var options = ko.unwrap(valueAccessor()); | |
$.extend(options, { pickDate: false, useStrict: true, useSeconds: false }); | |
var timeValueObserver = allBindings().timeValue; | |
$(element).datetimepicker(options); | |
$(element).on('dp.change', function (e) { | |
$(element).data("DateTimePicker").hide(); | |
timeValueObserver(moment(e.date).format(options.format)); | |
}); | |
ko.utils.domNodeDisposal.addDisposeCallback(element, function () { | |
$(element).datetimepicker("destroy"); | |
}); | |
} | |
}; | |
ko.bindingHandlers.bsTooltip = { | |
init: function(element, valueAccessor, allBindings, viewModel, bindingContext) { | |
var local = ko.utils.unwrapObservable(valueAccessor()), | |
options = {}; | |
ko.utils.extend(options, ko.bindingHandlers.bsTooltip.options); | |
ko.utils.extend(options, local); | |
$(element).tooltip(options); | |
ko.utils.domNodeDisposal.addDisposeCallback(element, function () { | |
$(element).tooltip("destroy"); | |
}); | |
}, | |
options: { | |
placement: "right" | |
} | |
}; | |
ko.bindingHandlers.bsModal = { | |
init: function(element, valueAccessor) { | |
$(element).modal({ | |
show: false, | |
keyboard: false | |
}); | |
var value = valueAccessor(); | |
if (ko.isObservable(value)) { | |
$(element).on('hide.bs.modal', function () { | |
value(false); | |
}); | |
} | |
ko.utils.domNodeDisposal.addDisposeCallback(element, function () { | |
$(element).modal("destroy"); | |
}); | |
}, | |
update: function (element, valueAccessor) { | |
var show = ko.unwrap(valueAccessor()); | |
$(element).modal(show ? 'show' : 'hide'); | |
} | |
}; |
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