Last active
November 24, 2024 22:35
-
-
Save dkandalov/6bd16ac80ee69739f9b81b665bb93768 to your computer and use it in GitHub Desktop.
Mini-plugin for paragraph navigation in IntelliJ IDEs (to be use with https://github.com/dkandalov/live-plugin)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import com.intellij.openapi.editor.Editor | |
import com.intellij.openapi.editor.EditorModificationUtil | |
import com.intellij.openapi.editor.IndentGuideDescriptor | |
import com.intellij.openapi.editor.LogicalPosition | |
import com.intellij.openapi.editor.ScrollType.CENTER | |
import com.intellij.openapi.editor.impl.IndentsModelImpl | |
import com.intellij.openapi.fileEditor.ex.IdeDocumentHistory | |
import liveplugin.registerEditorAction | |
// See https://gist.github.com/dkandalov/6bd16ac80ee69739f9b81b665bb93768 | |
registerEditorAction("Next Paragraph", "alt shift PERIOD") { editor, _, _ -> | |
val indents = (editor.indentsModel as? IndentsModelImpl)?.indents ?: return@registerEditorAction | |
val lines = editor.document.text.lines() | |
val lineIndex = editor.caretModel.logicalPosition.line | |
val lineIndices = (lineIndex..lines.lastIndex) - editor.foldedLineIndices() | |
val indentByLine = lineIndices.associateWith { index -> | |
indents.filter { index in (it.startLine until it.endLine) }.maxByOrNull { it.indentLevel } | |
} | |
val newLineIndex = lineIndices.zipWithNext().asSequence() | |
.mapNotNull { (lastIndex, index) -> | |
val lastIndent = indentByLine[lastIndex] ?: IndentGuideDescriptor(-1, -1, -1) | |
val indent = indentByLine[index] ?: IndentGuideDescriptor(-1, -1, -1) | |
val lastLine = lines[lastIndex] | |
val line = lines[index] | |
when { | |
lastIndent != indent && lastIndent.indentLevel < indent.indentLevel -> index | |
!lastLine.containsCode() && line.containsCode() -> index | |
else -> null | |
} | |
}.firstOrNull() | |
if (newLineIndex != null) { | |
editor.moveCaretTo(newLineIndex, lines[newLineIndex].firstColumnIndex()) | |
} | |
} | |
registerEditorAction("Previous Paragraph", "alt shift COMMA") { editor, _, _ -> | |
val indents = (editor.indentsModel as? IndentsModelImpl)?.indents ?: return@registerEditorAction | |
val lines = editor.document.text.lines() | |
val lineIndex = editor.caretModel.logicalPosition.line | |
val lineIndices = (lineIndex - 1 downTo 0) - editor.foldedLineIndices() | |
val indentByLine = lines.indices.associateWith { index -> | |
indents.filter { index in (it.startLine until it.endLine) }.maxByOrNull { it.indentLevel } | |
} | |
val newLineIndex = lineIndices.zipWithNext().asSequence() | |
.mapNotNull { (lastIndex, index) -> | |
val lastIndent = indentByLine[lastIndex] ?: IndentGuideDescriptor(-1, -1, -1) | |
val indent = indentByLine[index] ?: IndentGuideDescriptor(-1, -1, -1) | |
val lastLine = lines[lastIndex] | |
val line = lines[index] | |
when { | |
lastIndent != indent && lastIndent.indentLevel > indent.indentLevel -> lastIndex | |
lastLine.containsCode() && !line.containsCode() -> lastIndex | |
else -> null | |
} | |
}.firstOrNull() | |
if (newLineIndex != null) { | |
editor.moveCaretTo(newLineIndex, lines[newLineIndex].firstColumnIndex()) | |
} | |
} | |
fun List<String>.containCodeAt(index: Int) = | |
if (index !in indices) false | |
else this[index].containsCode() | |
fun String.containsCode() = | |
trim().trim(' ', '{', '}', ',', '(', ')', '/').isNotBlank() | |
fun Editor.moveCaretTo(newLineIndex: Int, columnIndex: Int) { | |
caretModel.moveToLogicalPosition(LogicalPosition(newLineIndex, columnIndex)) | |
caretModel.removeSecondaryCarets() | |
caretModel.currentCaret.removeSelection() | |
scrollingModel.scrollToCaret(CENTER) | |
EditorModificationUtil.scrollToCaret(this) | |
IdeDocumentHistory.getInstance(project).includeCurrentCommandAsNavigation() | |
} | |
fun Editor.foldedLineIndices() = | |
foldingModel.allFoldRegions | |
.filter { !it.isExpanded } | |
.flatMapTo(HashSet()) { | |
val startLine = offsetToLogicalPosition(it.startOffset).line + 1 | |
val endLine = offsetToLogicalPosition(it.endOffset).line | |
startLine..endLine | |
} | |
fun String.firstColumnIndex() = | |
indexOfFirst { !it.isWhitespace() } | |
.let { if (it == -1) 0 else it } | |
fun Map<Int, IndentGuideDescriptor?>.toPrintableString(lines: List<String>) = | |
entries.joinToString("<br/>") { | |
(it.value?.indentLevel ?: -1).toString() + " -- " + lines[it.key] | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment