Upload

An upload control allows the user to select files from the local file system and upload them to the server.

It supports drag and drop, multiple file selection.

A server-side uiSet (not a scope uiSet) must be executed to allow the upload and specify the upload path:

uiSet("<object ID>", "path", "<upload path>")

• name: the object ID

• upload path: the path where the uploaded files are saved, relative to the HSYCO main directory

When the upload is completed, a command is generated with:

• name: the object ID

• parameter: the uploaded file name, including the extension

Attributes

Common

ID

Sets the object's ID.

The ID identifies the object and is used to reference it in UISet actions, allowing to change its attributes dynamically.

The ID is not unique, it can be shared among multiple objects to quickly change a common attribute.

IDs can't be changed with a UISet action, but they can have a Value Binding assigned to them. Value Bindings on IDs allow an object to be dynamically attached to a set of attribute values.

E.g. the following Value Binding switches the ID of the object between mybutton1 and mybutton2 based on the value of the UISet button.address:

Value binding:

"mybutton" + ui('button', 'address')

UISet:

UISet('button', 'address', '1') switches the ID to mybutton1

UISet('button', 'address', '2') switches the ID to mybutton2

Position and Size

Position

Sets the object's position.

Attribute Values

Value	Description	Example
x<left>y<top>	Specify left/top coordinates in pixels.	x10y20

This attribute is available when parent's layout is neither "flex" nor "grid".

When parent's layout is neither "flex" nor "grid", this attribute defaults to x0y0.

Flex Grow

Specifies if the objects should grow to fill the available space.

Attribute Values

Value	Description
false	Default value. Objects do not grow to fill the available space.
true	Objects expand to fill the available space.

This attribute is available when parent's layout is "flex".

The default value is: false.

Flex Shrink

Specifies if the objects should shrink to fit the available space.

Attribute Values

Value	Description
false	Default value. Objects do not shrink to fit the available space.
true	Objects shrink to fit the available space.

This attribute is available when parent's layout is "flex".

The default value is: false.

Column

Specifies the starting column of the object inside a grid container.

Minimum value is 1.

Attribute Values

Value	Description
<int>	Column index starting from 1.

This attribute is available when parent's layout is "grid".

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Column Span

Specifies how many grid columns the object spans.

Minimum value is 1.

Attribute Values

Value	Description
<int>	Column span starting from 1.

This attribute is available when parent's layout is "grid".

When parent's layout is "grid", this attribute defaults to 1.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Row

Specifies the starting row of the object inside a grid container.

Minimum value is 1.

Attribute Values

Value	Description
[empty]	Auto placement by the grid.
<int>	Row index starting from 1.

This attribute is available when parent's layout is "grid".

When parent's layout is "grid", this attribute defaults to auto.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Row Span

Specifies how many grid rows the object spans.

Minimum value is 1.

Attribute Values

Value	Description
<int>	Row span starting from 1.

This attribute is available when parent's layout is "grid".

When parent's layout is "grid", this attribute defaults to 1.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Width

Sets the object's width in pixels.

Minimum value is 160.

Height

Sets the object's height in pixels.

Minimum value is 160.

Upload

Path

Specifies the path where uploaded files are saved. If this attribute is not set, the upload has no effect (no files saved on the server).

For security reasons, this UISET must be executed on the server-side code (EVENTS, JavaScript or Java). A client-side UISET would be ignored.

Attribute Values

Value	Description	Example
<string>	Path.	.tmp

note

This attribute is live. It can't be set from the Project Editor, it needs to be set dynamically with a UISet.

Multiple

Specifies wether multiple files can be selected.

Attribute Values

Value	Description
false	Default value. Single file selection.
true	Multiple file selection.

The default value is: false.

Accept

Specifies the types of files that the server accepts.

Attribute Values

Value	Description	Example
[empty]	No restrictions.
<comma-separated list>	File extensions.	.jpg,.png,.gif

The default value is: [any].

Preview

Specifies wether a preview step is displayed.

Attribute Values

Value	Description
false	Default value. No preview.
true	Preview.

The default value is: false.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

User Reset

Specifies wether the user can reset the upload object when an upload is completed.

Attribute Values

Value	Description
true	Default value. Can reset, OK button is visible.
false	No reset, OK button is hidden.

The default value is: true.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

State

Only "idle" and "cancel" can be set with a uiSet.

Setting "idle" resets the control. During a server upload, the reset is applied after all selected files finish uploading successfully; failures still show an error. For client-side file loading, the reset stops loading immediately.

Setting "cancel" stops the current batch immediately and resets the control to "idle", like the Cancel button: uiSet("<object ID>", "state", "cancel") Files already saved remain saved, and a file already being saved may finish saving.

The other listed values describe the current state and cannot be forced with a uiSet. The current state can be read with a value binding, using ui("<object ID>", "state"), or from the client-side uiSet callback. "cancel" is a command and is never returned as the current state.

Attribute Values

Value	Description
idle	Idle, waiting for files.
cancel	Cancel the upload and return to idle.
uploading	Uploading.
complete	Uploaded.
error	Error.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

note

This attribute is live. It can't be set from the Project Editor, it needs to be set dynamically with a UISet.

Style

Button Color

Specifies the button color.

Attribute Values

Value	Description
default	Default value. Default color.
primary	Primary color, used to highlight action buttons.
warning	Warning color, used to highlight warning buttons.
success	Success color, used to highlight success buttons.
error	Error color, used to highlight error buttons.
light	Light color.
dark	Dark color.
red,blue,yellow,green,yellow,purple,orange,green	Palette colors.
custom	Custom color, defined in the "Custom Color" attribute.

The default value is: default.

View

Visible

Sets the object's visibility.

Attribute Values

Value	Description
true	Default value. Visible.
false	Hidden.

The default value is: true.

Enabled

Specifies if the object is enabled or disabled. A disabled object appears as grayed out and can't be interacted with.

Attribute Values

Value	Description
true	Default value. Enabled.
false	Disabled.

The default value is: true.

Blink

Blinks the object at the specified speed.

Attribute Values

Value	Description
false	Default value. Not blinking.
slow	Blinks slowly.
fast	Blinks fast.

The default value is: false.

Transition

Specifies the transition effect when the object is shown or hidden.

Attribute Values

Value	Description
none	Default value. No transition.
fade	Fade in/out.
fade-left	Slide from left and fade in/out.
fade-right	Slide from right and fade in/out.
fade-up	Slide from top and fade in/out.
fade-down	Slide from bottom and fade in/out.
slide-left	Slide from left.
slide-right	Slide from right.
slide-up	Slide from top.
slide-down	Slide from bottom.
zoom-in	Zoom in.
zoom-out	Zoom out.
3d-flip-left	3D flip from left.
3d-flip-right	3D flip from right.

The default value is: none.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Transition Duration

Specifies the transition duration in milliseconds.

Attribute Values

Value	Description
<integer>	Duration in milliseconds.

This attribute is available when transition is not "none".

When transition is not "none", this attribute defaults to 300.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Transition Delay

Specifies the transition delay in milliseconds.

Attribute Values

Value	Description
<integer>	Delay in milliseconds.

This attribute is available when transition is not "none".

When transition is not "none", this attribute defaults to 0.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Opacity

Sets the object's opacity. Opacity is the degree to which content behind an object is hidden.

Attribute Values

Value	Description
0	The object is fully transparent.
>0.0, <1.0	The object is translucent (content behind the element can be seen).
1.0	Default value. The object is fully opaque.

The default value is: 1.0.

Rotation

Specifies the degrees by which the object is rotated. A positive number rotates it clockwise, while a negative value rotates it counter-clockwise.

The default value is: 0.

CSS Class

Specifies a CSS Class that applies to the object, useful to customize its appearance. Custom CSS Classes are specified within the custom.css file.

Margin

Specifies the margin of the object. The margin is the space outside the object's border.

Attribute Values

Value	Description	Example
<int>	Specify the margin in pixels for all sides of the object.
<top> <right> <bottom> <left>	Specify the margin in pixels for each side of the object.	10 20 30 40

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

View Scale

Specifies the scale of the object. The scale is the ratio between the object's size and the size of the view it is contained in.

Attribute Values

Value	Description
<float>	Specify the scale for both width and height of the object.

The default value is: 1.0.

note

This attribute is experimental. It might not work properly and it might be modified or removed in a future release.

Meta

Comment

Specifies a comment, visible only in the Project Editor. It can be used to add a note or a tag to the object. The filter in the object's SELECT panel applies to the comment as well.

note

This attribute is static. Its value can't be changed dynamically with a uiSet command or with a value binding.

Exclude

Excludes the object from the UI. Useful to temporarily hide an object without deleting it. Different from the "Visible" attribute, which hides the object in the UI but keeps it in the project, allowing it to be shown again with a UISet.

Attribute Values

Value	Description
false	Default value. Object is included in the UI.
true	Object is excluded from the UI.

The default value is: false.

note

This attribute is static. Its value can't be changed dynamically with a uiSet command or with a value binding.