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refactor: consolidate goLeft and goRight into one
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,88 +1,94 @@ | ||
| import 'package:appflowy_editor/appflowy_editor.dart'; | ||
| import 'package:flutter/material.dart'; | ||
|
|
||
| enum SelectionRange { | ||
| character, | ||
| word, | ||
| } | ||
|
|
||
| extension PositionExtension on Position { | ||
| Position? goLeft( | ||
| Position? moveHorizontal( | ||
| EditorState editorState, { | ||
| bool moveLeft = true, | ||
| SelectionRange selectionRange = SelectionRange.character, | ||
| }) { | ||
| final node = editorState.document.nodeAtPath(path); | ||
| if (node == null) { | ||
| return null; | ||
| } | ||
|
|
||
| if (offset == 0) { | ||
| if (moveLeft && offset == 0) { | ||
| final previousEnd = node.previous?.selectable?.end(); | ||
| if (previousEnd != null) { | ||
| return previousEnd; | ||
| } | ||
| return null; | ||
| } else if (!moveLeft) { | ||
| final end = node.selectable?.end(); | ||
| if (end != null && offset >= end.offset) { | ||
| return node.next?.selectable?.start(); | ||
| } | ||
| } | ||
|
|
||
| switch (selectionRange) { | ||
| case SelectionRange.character: | ||
| if (node is TextNode) { | ||
| return Position( | ||
| path: path, | ||
| offset: node.delta.prevRunePosition(offset), | ||
| offset: moveLeft | ||
| ? node.delta.prevRunePosition(offset) | ||
| : node.delta.nextRunePosition(offset), | ||
| ); | ||
| } | ||
|
|
||
| return Position(path: path, offset: offset); | ||
| case SelectionRange.word: | ||
| if (node is TextNode) { | ||
| final result = node.selectable?.getWordBoundaryInPosition( | ||
| Position( | ||
| path: path, | ||
| offset: node.delta.prevRunePosition(offset), | ||
| ), | ||
| ); | ||
| final result = moveLeft | ||
| ? node.selectable?.getWordBoundaryInPosition( | ||
| Position( | ||
| path: path, | ||
| offset: node.delta.prevRunePosition(offset), | ||
| ), | ||
| ) | ||
| : node.selectable?.getWordBoundaryInPosition(this); | ||
| if (result != null) { | ||
| return result.start; | ||
| return moveLeft ? result.start : result.end; | ||
| } | ||
| } | ||
|
|
||
| return Position(path: path, offset: offset); | ||
| } | ||
| } | ||
|
|
||
| Position? goRight( | ||
| Position? moveVertical( | ||
| EditorState editorState, { | ||
| SelectionRange selectionRange = SelectionRange.character, | ||
| bool upwards = true, | ||
| }) { | ||
| final node = editorState.document.nodeAtPath(path); | ||
| if (node == null) { | ||
| final selection = | ||
| editorState.service.selectionService.currentSelection.value; | ||
| final rects = editorState.service.selectionService.selectionRects; | ||
| if (rects.isEmpty || selection == null) { | ||
| return null; | ||
| } | ||
|
|
||
| final end = node.selectable?.end(); | ||
| if (end != null && offset >= end.offset) { | ||
| return node.next?.selectable?.start(); | ||
| Offset offset; | ||
| if (selection.isBackward) { | ||
| final rect = rects.reduce( | ||
| (current, next) => current.bottom >= next.bottom ? current : next, | ||
| ); | ||
| offset = upwards | ||
| ? rect.topRight.translate(0, -rect.height) | ||
| : rect.bottomRight.translate(0, rect.height); | ||
| } else { | ||
| final rect = rects.reduce( | ||
| (current, next) => current.top <= next.top ? current : next, | ||
| ); | ||
| offset = upwards | ||
| ? rect.topLeft.translate(0, -rect.height) | ||
| : rect.bottomLeft.translate(0, rect.height); | ||
| } | ||
|
|
||
| switch (selectionRange) { | ||
| case SelectionRange.character: | ||
| if (node is TextNode) { | ||
| return Position( | ||
| path: path, | ||
| offset: node.delta.nextRunePosition(offset), | ||
| ); | ||
| } | ||
|
|
||
| return Position(path: path, offset: offset); | ||
| case SelectionRange.word: | ||
| if (node is TextNode) { | ||
| final result = node.selectable?.getWordBoundaryInPosition(this); | ||
| if (result != null) { | ||
| return result.end; | ||
| } | ||
| } | ||
|
|
||
| return Position(path: path, offset: offset); | ||
| } | ||
| return editorState.service.selectionService.getPositionInOffset(offset); | ||
| } | ||
| } |
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