How to make input type file wait for http request's response before opening file chooser
0
I have a file chooser in my page.
<input type='file' id='xxx'>
On click of this input, I have to validate some other fields via HTTP request. Now what I want is my file chooser should wait till I get the response from the HTTP request. Is there any way I can achieve this.
On click, I am calling some method which validates everything but before it completes the method execution, file chooser comes up.
I tried for async/sync method call but NO success.
I am using angular 6.
javascript html angular input
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
|
show 2 more comments
0
I have a file chooser in my page.
<input type='file' id='xxx'>
On click of this input, I have to validate some other fields via HTTP request. Now what I want is my file chooser should wait till I get the response from the HTTP request. Is there any way I can achieve this.
On click, I am calling some method which validates everything but before it completes the method execution, file chooser comes up.
I tried for async/sync method call but NO success.
I am using angular 6.
javascript html angular input
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
1
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
1
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
1
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01
|
show 2 more comments
0
0
0
I have a file chooser in my page.
<input type='file' id='xxx'>
On click of this input, I have to validate some other fields via HTTP request. Now what I want is my file chooser should wait till I get the response from the HTTP request. Is there any way I can achieve this.
On click, I am calling some method which validates everything but before it completes the method execution, file chooser comes up.
I tried for async/sync method call but NO success.
I am using angular 6.
javascript html angular input
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
I have a file chooser in my page.
<input type='file' id='xxx'>
On click of this input, I have to validate some other fields via HTTP request. Now what I want is my file chooser should wait till I get the response from the HTTP request. Is there any way I can achieve this.
On click, I am calling some method which validates everything but before it completes the method execution, file chooser comes up.
I tried for async/sync method call but NO success.
I am using angular 6.
javascript html angular input
javascript html angular input
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
asked Nov 13 '18 at 14:26
Shubham SharmaShubham Sharma
126112
126112
It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
1
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
1
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
1
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01
|
show 2 more comments
It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
1
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
1
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
1
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01
It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
1
1
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
1
1
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
1
1
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01
|
show 2 more comments
1 Answer
1
active
oldest
votes
1
I think you need somethink like this.
UPDT: sorry, fixed example to work
@Directive({
selector: '[validateClick]'
})
export class ValidateClickDirective {
private _isValid: boolean = false;
constructor(
private _elementRef: ElementRef<HTMLElement>
) { }
@HostListener('click', ['$event'])
public onClick(event: MouseEvent): void {
if (!this._isValid) {
event.preventDefault();
of(true) // your request to the server
.pipe(delay(1000))
.subscribe((isValid: boolean) => {
this._isValid = isValid
if (isValid) {
this._elementRef.nativeElement.click();
}
})
} else {
this._isValid = false;
}
}
}
And use it:
<input type="file" validateClick>
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write<input type="file" validateClick>without #
– Swagga
Nov 13 '18 at 18:59
add a comment |
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1 Answer
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1 Answer
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votes
1
I think you need somethink like this.
UPDT: sorry, fixed example to work
@Directive({
selector: '[validateClick]'
})
export class ValidateClickDirective {
private _isValid: boolean = false;
constructor(
private _elementRef: ElementRef<HTMLElement>
) { }
@HostListener('click', ['$event'])
public onClick(event: MouseEvent): void {
if (!this._isValid) {
event.preventDefault();
of(true) // your request to the server
.pipe(delay(1000))
.subscribe((isValid: boolean) => {
this._isValid = isValid
if (isValid) {
this._elementRef.nativeElement.click();
}
})
} else {
this._isValid = false;
}
}
}
And use it:
<input type="file" validateClick>
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write<input type="file" validateClick>without #
– Swagga
Nov 13 '18 at 18:59
add a comment |
1
I think you need somethink like this.
UPDT: sorry, fixed example to work
@Directive({
selector: '[validateClick]'
})
export class ValidateClickDirective {
private _isValid: boolean = false;
constructor(
private _elementRef: ElementRef<HTMLElement>
) { }
@HostListener('click', ['$event'])
public onClick(event: MouseEvent): void {
if (!this._isValid) {
event.preventDefault();
of(true) // your request to the server
.pipe(delay(1000))
.subscribe((isValid: boolean) => {
this._isValid = isValid
if (isValid) {
this._elementRef.nativeElement.click();
}
})
} else {
this._isValid = false;
}
}
}
And use it:
<input type="file" validateClick>
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write<input type="file" validateClick>without #
– Swagga
Nov 13 '18 at 18:59
add a comment |
1
1
1
I think you need somethink like this.
UPDT: sorry, fixed example to work
@Directive({
selector: '[validateClick]'
})
export class ValidateClickDirective {
private _isValid: boolean = false;
constructor(
private _elementRef: ElementRef<HTMLElement>
) { }
@HostListener('click', ['$event'])
public onClick(event: MouseEvent): void {
if (!this._isValid) {
event.preventDefault();
of(true) // your request to the server
.pipe(delay(1000))
.subscribe((isValid: boolean) => {
this._isValid = isValid
if (isValid) {
this._elementRef.nativeElement.click();
}
})
} else {
this._isValid = false;
}
}
}
And use it:
<input type="file" validateClick>
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
I think you need somethink like this.
UPDT: sorry, fixed example to work
@Directive({
selector: '[validateClick]'
})
export class ValidateClickDirective {
private _isValid: boolean = false;
constructor(
private _elementRef: ElementRef<HTMLElement>
) { }
@HostListener('click', ['$event'])
public onClick(event: MouseEvent): void {
if (!this._isValid) {
event.preventDefault();
of(true) // your request to the server
.pipe(delay(1000))
.subscribe((isValid: boolean) => {
this._isValid = isValid
if (isValid) {
this._elementRef.nativeElement.click();
}
})
} else {
this._isValid = false;
}
}
}
And use it:
<input type="file" validateClick>
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
edited Nov 13 '18 at 18:58
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
answered Nov 13 '18 at 14:44
SwaggaSwagga
6113
6113
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write<input type="file" validateClick>without #
– Swagga
Nov 13 '18 at 18:59
add a comment |
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write<input type="file" validateClick>without #
– Swagga
Nov 13 '18 at 18:59
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
Implemented in the same way but can see file chooser. :(
– Shubham Sharma
Nov 13 '18 at 16:07
@ShubhamSharma make sure u write
<input type="file" validateClick> without #– Swagga
Nov 13 '18 at 18:59
@ShubhamSharma make sure u write
<input type="file" validateClick> without #– Swagga
Nov 13 '18 at 18:59
add a comment |
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It is unclear what selecting a file and how the other HTTP requests relate.... Maybe you should show some code.
– epascarello
Nov 13 '18 at 14:28
that is somehow requirement that file chooser should open only after validation which is written over backend.
– Shubham Sharma
Nov 13 '18 at 14:29
1
wouldn't it be wiser to place a stepper of some sort and simply limit access to the file dialog tab ?
– Stavm
Nov 13 '18 at 14:47
1
So do not show it until it can be used.... disable it and show some sort of message "validating....."
– epascarello
Nov 13 '18 at 14:47
1
Sounds like a bad user experience, frankly. When I click on a file input, I expect the file chooser to show up. If it doesn't, I'm going to wonder why the app is so slow. The validation should be triggered by every form element; when enough of them have been filled out that it makes sense to do the HTTP requests, trigger them. As @epascarello suggests, don't allow them to use the file input until the form is valid.
– Heretic Monkey
Nov 13 '18 at 15:01