50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
/* global CodeMirror editor debounce */
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/* exported rerouteHotkeys */
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'use strict';
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const rerouteHotkeys = (() => {
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// reroute handling to nearest editor when keypress resolves to one of these commands
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const REROUTED = new Set([
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'save',
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'toggleStyle',
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'jumpToLine',
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'nextEditor', 'prevEditor',
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'toggleEditorFocus',
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'find', 'findNext', 'findPrev', 'replace', 'replaceAll',
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'colorpicker',
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'beautify',
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]);
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return rerouteHotkeys;
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// note that this function relies on `editor`. Calling this function before
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// the editor is initialized may throw an error.
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function rerouteHotkeys(enable, immediately) {
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if (!immediately) {
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debounce(rerouteHotkeys, 0, enable, true);
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} else if (enable) {
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document.addEventListener('keydown', rerouteHandler);
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} else {
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document.removeEventListener('keydown', rerouteHandler);
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}
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}
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function rerouteHandler(event) {
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const keyName = CodeMirror.keyName(event);
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if (!keyName) {
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return;
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}
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const rerouteCommand = name => {
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if (REROUTED.has(name)) {
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CodeMirror.commands[name](editor.closestVisible(event.target));
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return true;
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}
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};
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if (CodeMirror.lookupKey(keyName, CodeMirror.defaults.keyMap, rerouteCommand) === 'handled' ||
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CodeMirror.lookupKey(keyName, CodeMirror.defaults.extraKeys, rerouteCommand) === 'handled') {
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event.preventDefault();
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event.stopPropagation();
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}
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}
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})();
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