Created
April 4, 2017 09:02
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$(function () { | |
// on document ready... | |
if (typeof ko != "undefined" && typeof kendo != "undefined") { | |
// Extending original KO handlers to support kendo widgets...since knockout-kendo.js does not worked well in my tests... | |
var originalHandlerForValueUpdate = ko.bindingHandlers.value.update; | |
var originalHandlerForDisableUpdate = ko.bindingHandlers.disable.update; | |
var originalHandlerForEnableUpdate = ko.bindingHandlers.enable.update; | |
var originalHandlerForReadonlyUpdate = ko.bindingHandlers.readonly.update; | |
ko.bindingHandlers.value.update = function (element, valueAccessor, allBindingsAccessor, viewModel, context) { | |
var $element = $(element); | |
var value = ko.utils.unwrapObservable(valueAccessor()); | |
var widget = kendo.widgetInstance($element); | |
if (widget != "undefined") { | |
// Check if widget has given method, execute it... | |
if (widget && widget["value"] !== undefined) { | |
widget["value"](value); | |
return; | |
} | |
} | |
// If binding wasn't processed via kendo widget, use original knockout handler | |
originalHandlerForValueUpdate(element, valueAccessor, allBindingsAccessor, viewModel, context); | |
}; | |
ko.bindingHandlers.disable.update = function (element, valueAccessor, allBindingsAccessor, viewModel, context) { | |
var $element = $(element); | |
var value = ko.utils.unwrapObservable(valueAccessor()); | |
var widget = kendo.widgetInstance($element); | |
if (widget != "undefined") { | |
// Check if widget has given method, execute it... | |
if (widget && widget["enable"] !== undefined) { | |
widget["enable"](!value); | |
return; | |
} | |
} | |
/* | |
if ($element.hasClass('k-textbox')) { | |
if (value) $element.addClass("k-state-disabled"); | |
else $element.removeClass("k-state-disabled"); | |
} | |
*/ | |
// If binding wasn't processed via kendo widget, use original knockout handler | |
originalHandlerForDisableUpdate(element, valueAccessor, allBindingsAccessor, viewModel, context); | |
}; | |
ko.bindingHandlers.enable.update = function (element, valueAccessor, allBindingsAccessor, viewModel, context) { | |
var $element = $(element); | |
var value = ko.utils.unwrapObservable(valueAccessor()); | |
var widget = kendo.widgetInstance($element); | |
if (widget != "undefined") { | |
// Check if widget has given method, execute it... | |
if (widget && widget["enable"] !== undefined) { | |
widget["enable"](value); | |
return; | |
} | |
} | |
/* | |
if ($element.hasClass('k-textbox')) { | |
if (value) $element.removeClass("k-state-disabled"); | |
else $element.addClass("k-state-disabled"); | |
} | |
*/ | |
// If binding wasn't processed via kendo widget, use original knockout handler | |
originalHandlerForEnableUpdate(element, valueAccessor, allBindingsAccessor, viewModel, context); | |
}; | |
// We override it only if it was defined before - since readonly binding is a custom handler, we need to do this check | |
if (ko.bindingHandlers.readonly !== undefined) { | |
ko.bindingHandlers.readonly.update = function (element, valueAccessor, allBindingsAccessor, viewModel, context) { | |
var $element = $(element); | |
var value = ko.utils.unwrapObservable(valueAccessor()); | |
var widget = kendo.widgetInstance($element); | |
if (widget != "undefined") { | |
// Check if widget has given method, execute it... | |
if (widget && widget["readonly"] !== undefined) { | |
widget["readonly"](value); | |
return; | |
} | |
} | |
// If binding wasn't processed via kendo widget, use original knockout handler | |
originalHandlerForReadonlyUpdate(element, valueAccessor, allBindingsAccessor, viewModel, context); | |
}; | |
}; | |
} else { | |
console.log("ko or kendo is undefined, cannot apply kendo.knockout.bindings.js"); | |
} | |
}); |
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