75 lines
2.7 KiB
JavaScript
75 lines
2.7 KiB
JavaScript
addEventListener('keydown', (event) => {
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let target = event.originalTarget || event.composedPath()[0];
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if (!target.matches("#toprow textarea.gr-text-input[placeholder]")) return;
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if (! (event.metaKey || event.ctrlKey)) return;
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let plus = "ArrowUp"
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let minus = "ArrowDown"
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if (event.key != plus && event.key != minus) return;
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let selectionStart = target.selectionStart;
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let selectionEnd = target.selectionEnd;
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// If the user hasn't selected anything, let's select their current parenthesis block
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if (selectionStart === selectionEnd) {
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// Find opening parenthesis around current cursor
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const before = target.value.substring(0, selectionStart);
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let beforeParen = before.lastIndexOf("(");
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if (beforeParen == -1) return;
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let beforeParenClose = before.lastIndexOf(")");
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while (beforeParenClose !== -1 && beforeParenClose > beforeParen) {
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beforeParen = before.lastIndexOf("(", beforeParen - 1);
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beforeParenClose = before.lastIndexOf(")", beforeParenClose - 1);
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}
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// Find closing parenthesis around current cursor
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const after = target.value.substring(selectionStart);
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let afterParen = after.indexOf(")");
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if (afterParen == -1) return;
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let afterParenOpen = after.indexOf("(");
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while (afterParenOpen !== -1 && afterParen > afterParenOpen) {
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afterParen = after.indexOf(")", afterParen + 1);
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afterParenOpen = after.indexOf("(", afterParenOpen + 1);
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}
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if (beforeParen === -1 || afterParen === -1) return;
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// Set the selection to the text between the parenthesis
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const parenContent = target.value.substring(beforeParen + 1, selectionStart + afterParen);
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const lastColon = parenContent.lastIndexOf(":");
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selectionStart = beforeParen + 1;
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selectionEnd = selectionStart + lastColon;
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target.setSelectionRange(selectionStart, selectionEnd);
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}
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event.preventDefault();
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if (selectionStart == 0 || target.value[selectionStart - 1] != "(") {
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target.value = target.value.slice(0, selectionStart) +
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"(" + target.value.slice(selectionStart, selectionEnd) + ":1.0)" +
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target.value.slice(selectionEnd);
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target.focus();
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target.selectionStart = selectionStart + 1;
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target.selectionEnd = selectionEnd + 1;
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} else {
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end = target.value.slice(selectionEnd + 1).indexOf(")") + 1;
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weight = parseFloat(target.value.slice(selectionEnd + 1, selectionEnd + 1 + end));
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if (isNaN(weight)) return;
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if (event.key == minus) weight -= 0.1;
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if (event.key == plus) weight += 0.1;
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weight = parseFloat(weight.toPrecision(12));
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target.value = target.value.slice(0, selectionEnd + 1) +
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weight +
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target.value.slice(selectionEnd + 1 + end - 1);
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target.focus();
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target.selectionStart = selectionStart;
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target.selectionEnd = selectionEnd;
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}
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updateInput(target)
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});
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