File selector button

Introduction¶

A transparent file chooser button (<input type="file">) above a Label.

Author: Rex
Game object, DOM Game object

Live demos¶

File selector button

Usage¶

Sample code

Install plugin¶

Load minify file¶

Enable dom element in configuration of game

var config = {
    parent: divId,
    // fullscreenTarget: divId, // For fullscreen
    dom: {
        createContainer: true
    },
    input: {
        mouse: {
            target: divId
        },
        touch: {
            target: divId
        },
    },
    // ...
};
var game = new Phaser.Game(config);

Set parent to divId
Set dom.createContainer to true.

Load plugin (minify file) in preload stage

scene.load.scenePlugin('rexuiplugin', 'https://raw.githubusercontent.com/rexrainbow/phaser3-rex-notes/master/dist/rexuiplugin.min.js', 'rexUI', 'rexUI');

Add file selector button object

var button = scene.add.fileSelectorButton(config);

Import plugin¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Install plugin in configuration of game

import FileChooserPlugin from 'phaser3-rex-plugins/plugins/filechooser-plugin.js';
var config = {    
    parent: divId,
    // fullscreenTarget: divId, // For fullscreen
    dom: {
        createContainer: true
    },
    input: {
        mouse: {
            target: divId
        },
        touch: {
            target: divId
        },
    },
    // ...
    plugins: {
        scene: [{
            key: 'rexUI',
            plugin: UIPlugin,
            mapping: 'rexUI'
        },
        // ...
        ]
    }
    // ...
};
var game = new Phaser.Game(config);

Add file selector button object

var button = scene.add.fileSelectorButton(config);

Import class¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Enable dom element in configuration of game

var config = {
    parent: divId,
    // fullscreenTarget: divId, // For fullscreen
    dom: {
        createContainer: true
    },
    input: {
        mouse: {
            target: divId
        },
        touch: {
            target: divId
        },
    },
    // ...
};
var game = new Phaser.Game(config);

Set parent to divId
Set dom.createContainer to true.

Import class

import { FileSelectorButton } from 'phaser3-rex-plugins/templates/ui/ui-components.js';

Add file chooser object

var button = new FileSelectorButton(scene, config);
scene.add.existing(button);

Add file chooser object¶

var button = scene.add.fileSelectorButton({
    // x: 0,
    // y: 0,
    // anchor: undefined,
    // width: undefined,
    // height: undefined,
    // origin: 0.5
    // originX:
    // originY:

    orientation: 0,
    // rtl: false,

    background: backgroundGameObject,

    icon: iconGameObject,
    // iconMask: false,
    // squareFitIcon: false,
    // iconSize: undefined, iconWidth: undefined, iconHeight: undefined,

    text: textGameObject,
    expandTextWidth: false,
    expandTextHeight: false,

    action: actionGameObject,
    // actionMask: false,
    // squareFitAction: false,
    // actionSize: undefined, actionWidth: undefined, actionHeight: undefined,

    align: undefined,

    space: {
        left: 0,
        right: 0,
        top: 0,
        bottom: 0,

        icon: 0,
        text: 0,
    },

    // name: '',
    // draggable: false,
    // sizerEvents: false,
    // enableLayer: false,

    // accept: '',
    // multiple: false,
});
// var fileChooser = scene.add.fileSelectorButton(x, y, width, height, config);

x, y : Position of this object, it is valid when this object is the top object.
anchor : See anchor.
- left, right, centerX, x, top, bottom, centerY, y, aspectRatio : Position based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
    - 'left'(=0%), 'center'(=50%), 'right'(=100%)
    - 'top'(=0%), 'center'(=50%), 'bottom'(=100%)
  - Offset : '+n', or '-n'.
- width, height : Set size (invoke onResizeCallback) based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
  - Padding : '+n', or '-n'.
- aspectRatio :
  - undefined, or false : Does not keep aspect ratio. Default behavior.
  - true : Use the current width and height as the aspect ratio.
  - A number : Use given number as the aspect ratio.
- onResizeCallback : A default resize callback will be assigned interanlly.
width, height : Minimum width, minimum height.
origin, originX, originY : Set origin of this sizer. Default value is (0.5, 0.5).
orientation :
- 'left-to-right', 'horizontal','h', 'x', or 0 : Put icon at left side, and text at right side.
- 'top-to-bottom', 'vertical','v', 'y', or 1 : Put icon at top side, and text at bottom side.
rtl :
- true : Layout children from right to left.
- false : Layout children from left to right. Default behavior.
background : Game object of background, optional. This background game object will be resized to fit the size of label.
icon : Game object of icon, optional.
iconMask : Set true to add a circle mask on icon game object.
- Phaser 3 engine does not support nested mask, uses circle mask image instead.
squareFitIcon :
- true : Resize icon size to square to fit label height/width.
- false : Ignore this feature. Default behavior.
iconSize : Set display size of icon game object to iconSizexiconSize
iconWidth : Set display width of icon game object to iconWidth.
- If iconHeight is undefined, set scaleY of icon game object to scaleX of icon game object, to keep size ratio.
iconHeight : Set display height of icon game object to iconHeight.
- If iconWidth is undefined, set scaleX of icon game object to scaleY of icon game object, to keep size ratio.
text : Game object of text, optional.
expandTextWidth :
- false : Keep width of text to original size. Default behavior.
- true : Expand width of text object. Will set display width by default.
  - Must set to true if using scene.rexUI.wrapExpandText method with any text game object.
expandTextHeight : Set true to expand height of text object.
action : Game object of action icon, optional.
actionMask : Set true to add a circle mask on action icon game object.
- Phaser 3 engine does not support nested mask, uses circle mask image instead.
squareFitAction :
- true : Resize action icon size to square to fit label height/width.
- false : Ignore this feature. Default behavior.
actionSize : Set display size of action game object to actionSizexactionSize
actionWidth : Set display width of action game object to actionWidth.
- If actionHeight is undefined, set scaleY of action game object to scaleX of action game object, to keep size ratio.
actionHeight : Set display height of action game object to actionHeight.
- If actionWidth is undefined, set scaleX of action game object to scaleY of action game object, to keep size ratio.
align : Alignment of icon, text, action game objects.
- undefined, or 'left', or 'top' : Align game objects at left, or top.
- 'center' : Align game objects at center.
- 'right', or 'bottom' : Align game objects at right, or bottom.
space : Pads spaces.
- space.left, space.right, space.top, space.bottom : Space of bounds.
- space.icon : Space between icon game object and text game object.
- space.text : Space between text game object and action icon game object.
name : Set name of this game object.
draggable : Set true to drag top-most object.
sizerEvents : Set true to fire sizer events. Default value is false.
enableLayer :
- false : Add child game objects into scene's display list. Default behavior.
- true : Add child game objects into an internal layer game object. See also.
accept : A filter for what file types the user can pick from the file input dialog box.
- 'image/*' : The user can pick all image files.
- 'audio/*' : The user can pick all sound files.
- 'video/*' : The user can pick all video files.
- file_extension : Specify the file extension(s) (e.g: .gif, .jpg, .png, .doc) the user can pick from.
multiple : Set true to select multiple files.

Custom class¶

Define class

class MyFileSelectorButton extends RexPlugins.UI.FileSelectorButton {
    constructor(scene, config) {
        super(scene, config) {
        // ...
        scene.add.existing(this);
    }
    // ...

    // preUpdate(time, delta) {}
}

scene.add.existing(gameObject) : Adds an existing Game Object to this Scene.
- If the Game Object renders, it will be added to the Display List.
- If it has a preUpdate method, it will be added to the Update List.

Create instance

var button = new MyFileSelectorButton(scene, config);

Layout children¶

Arrange position of all elements.

label.layout();

Get element¶

Get element

Background game object

var background = label.getElement('background');

Icon game object
```
var icon = label.getElement('icon');
```

Text game object

var textObject = label.getElement('text');

Action icon game object

var action = label.getElement('action');

File chooser game object

var fileChooser = label.getElement('fileChooser');

Get by name

var gameObject = label.getElement('#' + name);
// var gameObject = label.getElement('#' + name, recursive);

or

var gameObject = label.getByName(name);
// var gameObject = label.getByName(name, recursive);

recursive : Set true to search all children recursively.

Selected files¶

var files = fileChooser.files;

files : Array of file object.

Set accept filter¶

fileChooser.setAccept(accept);

accept : A filter for what file types the user can pick from the file input dialog box.
- 'image/*' : The user can pick all image files.
- 'audio/*' : The user can pick all sound files.
- 'video/*' : The user can pick all video files.
- file_extension : Specify the file extension(s) (e.g: .gif, .jpg, .png, .doc) the user can pick from.

Multiple files¶

Enable
```
fileChooser.setMultiple();
```
Disable
```
fileChooser.setMultiple(false);
```

Events¶

Selected file(s) changed

button.on('select', function(files, button) {        
    var file = files[0];
    var url = URL.createObjectURL(file);
    // ...
})

Load file to cache¶

fileChooser.loadFile(file, loaderType, key);
// fileChooser.loadFile(file, loaderType, key, cahceType);

or

fileChooser.loadFilePromise(file, loaderType, key, cahceType)
    .then(function(content) {

    })

file : File object, see Events
loaderType : image, text, binary, ... See Loader
key : Unique string key.
cahceType :
- undefined : Use default value.
content : Content of file.

Create object URL¶

Create object url

var objectURL = URL.createObjectURL(file);

Release object url
```
URL.createObjectURL(objectURL);
```

Interactive with other game objects¶

See dom-element's Interactive with other game objects

Other properties¶

See label object, sizer object, base sizer object, container-lite.