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In JSInterop calls, use expected value for 'this'. Fixes dotnet/extensions#1477 (dotnet/extensions#1990) 

\n\nCommit migrated from a664ecb5b3
This commit is contained in:
Steve Sanderson 2019-07-09 12:40:20 +01:00 committed by GitHub
parent 97a039f154
commit 86b55046c9
1 changed files with 4 additions and 8 deletions
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12
src/JSInterop/Microsoft.JSInterop.JS/src/src/Microsoft.JSInterop.ts
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@ -141,14 +141,6 @@ module DotNet {
* Receives incoming calls from .NET and dispatches them to JavaScript.
*/
export const jsCallDispatcher = {
/**
* Finds the JavaScript function matching the specified identifier.
*
* @param identifier Identifies the globally-reachable function to be returned.
* @returns A Function instance.
*/
findJSFunction,
/**
* Invokes the specified synchronous JavaScript function.
*
@ -227,8 +219,10 @@ module DotNet {
let result: any = window;
let resultIdentifier = 'window';
let lastSegmentValue: any;
identifier.split('.').forEach(segment => {
if (segment in result) {
lastSegmentValue = result;
result = result[segment];
resultIdentifier += '.' + segment;
} else {
@ -237,6 +231,8 @@ module DotNet {
});
if (result instanceof Function) {
result = result.bind(lastSegmentValue);
cachedJSFunctions[identifier] = result;
return result;
} else {
throw new Error(`The value '${resultIdentifier}' is not a function.`);