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Account for `\n` after each block 

when converting from text offsets to selection state.

fixes vector-im/riot-web#4728
pull/21833/head
Luke Barnard 2017-08-02 10:51:34 +01:00
parent b632c9132c
commit 2c86086444
1 changed files with 4 additions and 8 deletions
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12
src/RichText.js
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@ -201,10 +201,8 @@ export function selectionStateToTextOffsets(selectionState: SelectionState,
export function textOffsetsToSelectionState({start, end}: SelectionRange, export function textOffsetsToSelectionState({start, end}: SelectionRange,
contentBlocks: Array<ContentBlock>): SelectionState { contentBlocks: Array<ContentBlock>): SelectionState {
let selectionState = SelectionState.createEmpty(); let selectionState = SelectionState.createEmpty();
for (const block of contentBlocks) {
for (let block of contentBlocks) { const blockLength = block.getLength();
let blockLength = block.getLength();
if (start !== -1 && start < blockLength) { if (start !== -1 && start < blockLength) {
selectionState = selectionState.merge({ selectionState = selectionState.merge({
anchorKey: block.getKey(), anchorKey: block.getKey(),
@ -212,9 +210,8 @@ export function textOffsetsToSelectionState({start, end}: SelectionRange,
}); });
start = -1; start = -1;
} else { } else {
start -= blockLength; start -= blockLength + 1;
} }
if (end !== -1 && end <= blockLength) { if (end !== -1 && end <= blockLength) {
selectionState = selectionState.merge({ selectionState = selectionState.merge({
focusKey: block.getKey(), focusKey: block.getKey(),
@ -222,10 +219,9 @@ export function textOffsetsToSelectionState({start, end}: SelectionRange,
}); });
end = -1; end = -1;
} else { } else {
end -= blockLength; end -= blockLength + 1;
} }
} }
return selectionState; return selectionState;
} }