EditContext: updateControlBounds() method
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The EditContext.updateControlBounds()
method of the EditContext
interface is used to inform the operating system about the position and size of the editable text region of the EditContext
object.
Call this method to tell the operating system the bounds of the current editable region. You should call it when initializing the EditContext, and whenever the editable region's bounds change such as when the webpage is resized. These bounds are used to position platform-specific editing-related UI surfaces such as an Input Method Editor (IME) window.
Syntax
updateControlBounds(controlBounds)
Parameters
controlBounds
-
A
DOMRect
object representing the new control bounds.
Exceptions
- If no argument is provided, a
TypeError
DOMException
is thrown. - If the provided argument is not a
DOMRect
aTypeError
DOMException
is thrown.
Examples
Updating the control bounds when the editor is initialized and on window resize
This example shows how to use the updateControlBounds()
method to tell the platform where the editable region is at all times.
#editor {
border: 1px solid black;
height: 50vw;
width: 50vh;
}
<div id="editor"></div>
const editorEl = document.getElementById("editor");
const editContext = new EditContext();
editorEl.editContext = editContext;
function updateControlBounds() {
const editorBounds = editorEl.getBoundingClientRect();
editContext.updateControlBounds(editorBounds);
console.log(
`Updated control bounds to ${editorBounds.x}, ${editorBounds.y}, ${editorBounds.width}, ${editorBounds.height}`,
);
}
// Update the control bounds now.
updateControlBounds();
// And when the page is resized.
window.addEventListener("resize", updateControlBounds);
Specifications
Specification |
---|
EditContext API # dom-editcontext-updatecontrolbounds |
Browser compatibility
BCD tables only load in the browser
See also
- The
EditContext
interface it belongs to.