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widgets.md

File metadata and controls

225 lines (146 loc) · 6.17 KB

body

The <body> tag defines a ui content (text, images, links, inputs, etc.). It occupies the entire space of the window and should be treated as root container for other elements.

NOTE: in the future releases it is possible the only single <body> element on the page would be allowed.

br

The <br/> tag inserts single line break. <br/> height is zero, so combining multiple <br/> tags has no effect. Use <brl/> if you want to insert extra empty line.

brl

The <brl/> tag inserts line break and extra empty line with the height of the current font-size. If you only need to insert single line break use <br/> tag instead.

button

The <button> tag defines a clickable button. Inside a <button> element you can put text (and tags like <i>, <b>, <strong>, <br>, <img>, etc.) A button can emit pressed and released signals. The button behaviour defined by the mode param. When changing its pressed state, button adds :pressed ess state to element if it pressed and remove :pressed if it releases.

Params:

  • pressed: bool if button is pressed or not

  • mode: BtnMode Specifies the button behavior:

    • press: When the button is clicked, it will act as if it was pressed for a single frame after the mouse/touch is released if it was down on the same button. The released signal will emit on the same frame, immediately following the pressed signal.

    • instant: The button will act as if it was pressed immediately after the mouse/touch is clicked, unless it is released first. The button will emit the pressed signal immediately after the mouse/touch is clicked, and the released signal after the mouse/touch is released.

    • toggle: The button will toggle its pressed state on and off. The pressed signal will emit when the button is pressed down and the released signal will emit when the button is released, unless it is still pressed down, in which case the pressed signal will not be emitted.

    • repeat($speed): This mode is similar to instant, but the pressed signal will also emit periodically based on $speed. $speed can be a constant value or a sequence of delays between emissions. The following values are accepted:

      • fast, normal, and slow emit signals starting with some base delay and reduce it over time until the minimum delay is reached.
      • A sequence in the form 0.5 0.4 0.4 0.25, with any number of elements, where each element specifies the delay between the previous pressed emission and the next one.

    • group($name): Associates the button with a virtual named group. Buttons in the same group will act like toggle buttons, but only one button may have the pressed state at a time.

  • value: String Specifies the <button> value passed to parent <buttongroup> when this button becomes pressed.

buttongroup

A container for multiple toggle buttons. When a button inside a <buttongroup> is clicked, it will toggle its pressed state and emit the pressed and released signals as appropriate. The <buttongroup> will update its own value property to match the pressed state of the buttons.

When you set the value property of a <buttongroup>, the corresponding button will become pressed, and all other buttons in the group will have their pressed state removed.

Params:

  • value: String The current value of the <buttongroup>. When you set this property, the corresponding button will become pressed, and all other buttons in the group will have their pressed state removed.

div

The <div> tag is an empty container that is used to define a division or a section. It does not affect the content or layout and is used to group eml elements to be styled with ess.

img

The <img> is used to load image and show it content on the UI screen.

Params:

  • src: ImageSource Specifies the path to the image or custom Handle<Image>

  • mode: ImgMode Specifies how an image should fits the space:

    • fit: resize the image to fit the box keeping it aspect ratio
    • cover: resize the image to cover the box keeping it aspect ratio
    • stretch: resize image to take all the space ignoring the aspect ratio
    • source: keep image at original size

  • modulate: Color Specifies the color the image should be multiplied

label

The <label> tag is a binable single line of text. It consumes the children and renders the content of bindable value param.

Params:

  • value: String

progressbar

extends: <range>

Params:

from <range>

  • minimum: f32 Specifies the minimum value

  • maximum: f32 Specifies the maximum value

  • value: f32 Specifies absolute value in minimum..maximum range

  • relative: f32 Specifies raltive value in 0..1 range

  • mode: LayoutMode Specifies the widget layout arrange.

    • verrtical: arrange the widget vertically
    • horizontal: arrange the widget horisontally

range

Params:

  • minimum: f32 Specifies the minimum value

  • maximum: f32 Specifies the maximum value

  • value: f32 Specifies absolute value in minimum..maximum range

  • relative: f32 Specifies raltive value in 0..1 range

  • mode: LayoutMode Specifies the widget layout arrange.

    • verrtical: arrange the widget vertically
    • horizontal: arrange the widget horisontally

slider

extends: <range>

Params:

from <range>

  • minimum: f32 Specifies the minimum value

  • maximum: f32 Specifies the maximum value

  • value: f32 Specifies absolute value in minimum..maximum range

  • relative: f32 Specifies raltive value in 0..1 range

  • mode: LayoutMode Specifies the widget layout arrange.

    • verrtical: arrange the widget vertically
    • horizontal: arrange the widget horisontally

span

strong

The <strong> tag highlights an important part of a text. It can be used for such important contents, as warnings. This can be one sentence that gives importance to the whole page, or it may be needed if you want to highlight some words that are of greater importance compared to the rest of the content.

textinput

Params:

  • value: String