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fix: selection after pasting nodes

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This commit is contained in:
Vincent Chan 2022-09-08 16:34:06 +08:00
parent 1736fb794d
commit e223eecf32
1 changed files with 46 additions and 13 deletions
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59
frontend/app_flowy/packages/appflowy_editor/lib/src/service/internal_key_event_handlers/copy_paste_handler.dart
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@ -4,6 +4,33 @@ import 'package:appflowy_editor/src/document/node_iterator.dart';
import 'package:flutter/material.dart';
import 'package:rich_clipboard/rich_clipboard.dart';
int _textLengthOfNode(Node node) {
if (node is TextNode) {
return node.delta.length;
}
return 0;
}
Selection _computeSelectionAfterPasteMultipleNodes(
EditorState editorState, List<Node> nodes) {
final currentSelection = editorState.cursorSelection!;
final currentCursor = currentSelection.start;
final currentNode = editorState.document.nodeAtPath(currentCursor.path)!;
final currentPath = [...currentCursor.path];
if (currentNode is TextNode) {
currentPath[currentPath.length - 1] += nodes.length;
int lenOfLastNode = _textLengthOfNode(nodes.last);
return Selection.collapsed(
Position(path: currentPath, offset: lenOfLastNode));
} else {
currentPath[currentPath.length - 1] += nodes.length;
int lenOfLastNode = _textLengthOfNode(nodes.last);
return Selection.collapsed(
Position(path: currentPath, offset: lenOfLastNode));
}
}
_handleCopy(EditorState editorState) async {
final selection = editorState.cursorSelection?.normalize;
if (selection == null || selection.isCollapsed) {
@ -80,6 +107,9 @@ _pasteHTML(EditorState editorState, String html) {
_pasteMultipleLinesInText(
EditorState editorState, List<int> path, int offset, List<Node> nodes) {
final afterSelection =
_computeSelectionAfterPasteMultipleNodes(editorState, nodes);
final tb = TransactionBuilder(editorState);
final firstNode = nodes[0];
@ -112,6 +142,7 @@ _pasteMultipleLinesInText(
tailNodes.add(TextNode(type: "text", delta: remain));
}
tb.setAfterSelection(afterSelection);
tb.insertNodes(path, tailNodes);
tb.commit();
return;
@ -219,16 +250,21 @@ _handlePastePlainText(EditorState editorState, String plainText) {
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: _lineContentToDelta(e)..addAll(insertedLineSuffix));
}
return TextNode(type: "text", delta: _lineContentToDelta(e));
}).toList();
final List<TextNode> nodes = remains
.map((e) => TextNode(type: "text", delta: _lineContentToDelta(e)))
.toList();
final afterSelection =
_computeSelectionAfterPasteMultipleNodes(editorState, nodes);
// append remain text to the last line
if (nodes.isNotEmpty) {
final last = nodes.last;
nodes[nodes.length - 1] =
TextNode(type: "text", delta: last.delta..addAll(insertedLineSuffix));
}
// insert first line
tb.textEdit(
node,
@ -238,11 +274,8 @@ _handlePastePlainText(EditorState editorState, String plainText) {
..delete(node.delta.length - beginOffset));
// insert remains
tb.insertNodes(path, nodes);
tb.setAfterSelection(afterSelection);
tb.commit();
// fixme: don't set the cursor manually
editorState.updateCursorSelection(Selection.collapsed(
Position(path: nodes.last.path, offset: lines.last.length)));
}
}