46 lines
1.5 KiB
TypeScript
46 lines
1.5 KiB
TypeScript
/* Copyright: Ankitects Pty Ltd and contributors
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* License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html */
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import type { EditingArea } from ".";
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import { bridgeCommand } from "./lib";
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import { enableButtons, disableButtons } from "./toolbar";
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import { saveField } from "./changeTimer";
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function caretToEnd(currentField: EditingArea): void {
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const range = document.createRange();
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range.selectNodeContents(currentField.editable);
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range.collapse(false);
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const selection = currentField.getSelection();
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selection.removeAllRanges();
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selection.addRange(range);
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}
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function focusField(field: EditingArea) {
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field.focusEditable();
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bridgeCommand(`focus:${field.ord}`);
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enableButtons();
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caretToEnd(field);
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}
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// For distinguishing focus by refocusing window from deliberate focus
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let previousActiveElement: EditingArea | null = null;
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export function onFocus(evt: FocusEvent): void {
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const currentField = evt.currentTarget as EditingArea;
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const previousFocus = evt.relatedTarget as EditingArea;
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if (previousFocus === previousActiveElement || !previousFocus) {
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focusField(currentField);
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}
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}
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export function onBlur(evt: FocusEvent): void {
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const previousFocus = evt.currentTarget as EditingArea;
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saveField(previousFocus, previousFocus === document.activeElement ? "key" : "blur");
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// other widget or window focused; current field unchanged
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previousActiveElement = previousFocus;
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disableButtons();
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}
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