## TdFileInputComponent: td-file-input

## Usage

Add the element wherever you want to bind a [File | FileList] into a class model without additional elements.

Can also drop a file(s) into the component to bind the file(s) to it.

Example for usage:

```html
<td-file-input [(ngModel)]="files" color="primary" (select)="selectEvent($event)"
               accept=".ext,.anotherExt" [disabled]="disabled" multiple>
  <mat-icon>attach_file</mat-icon><span>Choose a file...</span>
</td-file-input>
```
 
```typescript
export class Demo {

  files: File | FileList;
  disabled: boolean = false;

  selectEvent(files: FileList | File): void {
    if (files instanceof FileList) {
      ...
    } else {
      ...
    }
  };
} 
```

## API Summary

#### Inputs

+ color: string
  + Sets button color. Uses same color palette accepted as [MatButton].
+ multiple: boolean
  + Sets if multiple files can be dropped/selected at once in [TdFileUploadComponent].
+ accept: string
  + Sets files accepted when opening the file browser dialog. Same as "accept" attribute in `<input/>` element.
+ disabled: boolean
  + Disables [TdFileUploadComponent] and clears selected/dropped files.

#### Events

+ select: function($event)
  + Event emitted when a file is selected. 
  + Emits a [File or FileList] object.

#### Methods

+ clear: function
  + Used to clear the selected files from the [TdFileInputComponent].

## Setup

Import the [CovalentFileModule] in your NgModule:

```typescript
import { CovalentFileModule } from '@covalent/core/file';
@NgModule({
  imports: [
    CovalentFileModule,
    ...
  ],
  ...
})
export class MyModule {}
```

---

## TdFileSelectDirective: tdFileSelect

## Usage

Add the directive wherever you want to bind a [File | FileList] into a class model to an existing <input type="file"/> element.

Uses optional [(ngModel)] directive to bind file. (if [(ngModel]) exists, [fileSelect] is omitted)   

Example for usage:

```html
<input type="file" tdFileSelect (fileSelect)="files = $event" multiple>
```

## API Summary

#### Inputs

+ multiple: boolean
  + Sets whether multiple files can be selected at once in host element, or just a single file. 
  + Can also be "multiple" native attribute.

#### Events

+ fileSelect: function($event)
  + Event emitted when a file or files are selected in host [HTMLInputElement]. 
  + Emits a [FileList or File] object. Alternative to not use [(ngModel)].

## TdFileDropDirective: tdFileDrop

## Usage

Add the directive wherever you want to add drop support to an element to bind a [File | FileList] into a class model.

To add effect when <code>ondragenter</code> event is executed, override <code>.drop-zone</code> class in the context you are using it.

Note: if element has child elements, add <code>* { pointer-events: none; }</code> to avoid event being thrown again while navigating in child elements.

Example for usage:

```html
<div tdFileDrop (fileDrop)="files = $event" multiple [disabled]="disabled">
</div> 
```


## API Summary

#### Inputs

+ multiple: boolean
  + Sets whether multiple files can be dropped at once in host element, or just a single file. 
  + Can also be "multiple" native attribute.
+ disabled: boolean
  + Disabled drop events for host element.

#### Events

+ fileDrop: function($event)
  + Event emitted when a file or files are dropped in host element after being validated.  
  + Emits a [FileList or File] object.

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