position of ui.submenu, Properties Webix Docs

sets the position of the window relative to the the screen

string|function position;

Values

"center"

places the window in the center of the viewport

"top"

forces the window to appear from the top of the page with slide animation and horizontal centering

Example

webix.ui({
    view:"window",
    position:"center",
    // window config
}).show();

Related samples

Window: Centralization

Details

The positioning function takes the default window position as a parameter and allows modifying its aspects.

webix.ui({
    view:"window",
    head:"",
    body:{...},
    position:function(state){ 
        state.left = 20; // fixed values
        state.top = 20;
        state.width -=60; // relative values
        state.height +=60;
    }
});

The default window position is a top left corner of the viewport.