Preserve location on first and last line when scrolling through inputs
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parent
c66f9c885e
commit
c5f6b4617f
@ -140,11 +140,10 @@ export default {
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return;
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}
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const onRow = (
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this.$refs.input.value.slice(null, this.$refs.input.selectionStart).match(/\n/g) ||
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[]
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).length;
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const totalRows = (this.$refs.input.value.match(/\n/g) || []).length;
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const oldValue = this.$refs.input.value;
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const oldPosition = this.$refs.input.selectionStart;
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const onRow = (oldValue.slice(null, oldPosition).match(/\n/g) || []).length;
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const totalRows = (oldValue.match(/\n/g) || []).length;
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const {channel} = this;
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@ -165,7 +164,29 @@ export default {
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}
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channel.pendingMessage = channel.inputHistory[channel.inputHistoryPosition];
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this.$refs.input.value = channel.pendingMessage;
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const newValue = channel.pendingMessage;
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this.$refs.input.value = newValue;
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let newPosition;
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if (key === "up") {
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const lastIndexOfNewLine = newValue.lastIndexOf("\n");
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const lastLine = newValue.slice(null, lastIndexOfNewLine);
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newPosition =
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oldPosition > lastLine.length
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? newValue.length
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: lastIndexOfNewLine + oldPosition + 1;
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} else {
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const lastPositionOnFirstLine =
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newValue.indexOf("\n") === -1 ? newValue.length + 1 : newValue.indexOf("\n");
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const relativeRowPos = oldPosition - oldValue.lastIndexOf("\n") - 1;
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newPosition =
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relativeRowPos > lastPositionOnFirstLine
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? lastPositionOnFirstLine
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: relativeRowPos;
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}
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this.$refs.input.setSelectionRange(newPosition, newPosition);
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this.setInputSize();
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return false;
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