In my view, I have implemented a TypeScript code defining a KnockoutJS binding handler for a clickable element as shown below:
module MyModule {
export interface ICopyButtonParams {
dataUrl: string;
}
ko.bindingHandlers.copyButton = {
init: (element: HTMLElement, valueAccessor: () => ICopyButtonParams) => {
var options: any = ko.utils.unwrapObservable(valueAccessor());
if (!options.dataUrl) {
return;
}
new Clipboard(element, {
text: () => {
var clipboardData: string;
$.ajax({
url: options.dataUrl,
type: "GET",
contentType: "application/json",
cache: false,
async: false,
success: (result: SubmitResult) => {
clipboardData = result.Data;
}
});
return clipboardData;
}
});
}
};
}
The purpose of this binding handler is to enable the clickable element with Clipboard.JS, which allows storing a string in the clipboard upon clicking. In my scenario, I intend to utilize Clipboard.JS's dynamic text feature, where you provide a function that returns the desired clipboard content. Within this function, there is an AJAX call made to an API for fetching the text to be stored.
Due to the architecture constraints, using a standard asynchronous AJAX call with a success callback is not feasible as it may not resolve the clipboard text in time.
To address this issue, I have temporarily resorted to executing my AJAX call asynchronously (not ideal). Since the 'async' flag in JQuery has been deprecated from version 1.8 onwards, I am exploring alternative solutions.
Any suggestions on how to tackle this challenge?