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feat: paste inside the TextNode

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This commit is contained in:
Vincent Chan 2022-08-03 11:29:25 +08:00
parent 4e3e9d1a2c
commit aba84a3ccd
2 changed files with 57 additions and 13 deletions
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4
frontend/app_flowy/packages/flowy_editor/lib/operation/transaction_builder.dart
View File

@ -80,6 +80,10 @@ class TransactionBuilder {
add(TextEditOperation(path, delta, inverted));
}
setAfterSelection(Selection sel) {
afterSelection = sel;
}
mergeText(TextNode firstNode, TextNode secondNode,
{int? firstOffset, int secondOffset = 0}) {
final firstLength = firstNode.delta.length;

66
frontend/app_flowy/packages/flowy_editor/lib/service/internal_key_event_handlers/copy_paste_handler.dart
View File

@ -46,21 +46,61 @@ _handlePastePlainText(EditorState editorState, String plainText) {
return;
}
final path = [...selection.end.path];
if (path.isEmpty) {
return;
}
path[path.length - 1]++;
final lines =
plainText.split("\n").map((e) => e.replaceAll(RegExp(r'\r'), ""));
final nodes = lines
.map((e) => TextNode(type: "text", delta: Delta().insert(e)))
final lines = plainText
.split("\n")
.map((e) => e.replaceAll(RegExp(r'\r'), ""))
.toList();
final tb = TransactionBuilder(editorState);
tb.insertNodes(path, nodes);
tb.commit();
if (lines.isEmpty) {
return;
} else if (lines.length == 1) {
final node =
editorState.document.nodeAtPath(selection.end.path)! as TextNode;
final beginOffset = selection.end.offset;
TransactionBuilder(editorState)
..textEdit(node, () => Delta().retain(beginOffset).insert(lines[0]))
..setAfterSelection(Selection.collapsed(Position(
path: selection.end.path, offset: beginOffset + lines[0].length)))
..commit();
} else {
final firstLine = lines[0];
final beginOffset = selection.end.offset;
final remains = lines.sublist(1);
final path = [...selection.end.path];
if (path.isEmpty) {
return;
}
final node =
editorState.document.nodeAtPath(selection.end.path)! as TextNode;
final insertedLineSuffix = node.delta.slice(beginOffset);
path[path.length - 1]++;
var index = 0;
final tb = TransactionBuilder(editorState);
final nodes = remains.map((e) {
if (index++ == remains.length - 1) {
return TextNode(
type: "text",
delta: Delta().insert(e).addAll(insertedLineSuffix.operations));
}
return TextNode(type: "text", delta: Delta().insert(e));
}).toList();
// insert first line
tb.textEdit(
node,
() => Delta()
.retain(beginOffset)
.insert(firstLine)
.delete(node.delta.length - beginOffset));
// insert remains
tb.insertNodes(path, nodes);
tb.commit();
editorState.updateCursorSelection(Selection.collapsed(
Position(path: nodes.last.path, offset: lines.last.length)));
}
}
_handleCut() {