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package com.intellij.codeInsight.codeVision.ui.model
import com.intellij.codeInsight.codeVision.CodeVisionEntry
import com.intellij.codeInsight.codeVision.codeVisionEntryMouseEventKey
import com.intellij.codeInsight.codeVision.ui.*
import com.intellij.codeInsight.codeVision.ui.renderers.CodeVisionRenderer
import com.intellij.codeInsight.codeVision.ui.renderers.painters.CodeVisionTheme
import com.intellij.ide.IdeTooltip
import com.intellij.ide.IdeTooltipManager
import com.intellij.openapi.editor.Editor
import com.intellij.openapi.editor.EditorCustomElementRenderer
import com.intellij.openapi.editor.Inlay
import com.intellij.openapi.editor.event.EditorMouseEvent
import com.intellij.openapi.editor.impl.EditorImpl
import com.intellij.openapi.rd.createLifetime
import com.intellij.ui.awt.RelativePoint
import com.intellij.util.ui.UIUtil
import com.jetbrains.rd.swing.componentHoverPoint
import com.jetbrains.rd.util.asProperty
import com.jetbrains.rd.util.debounceNotNull
import com.jetbrains.rd.util.lifetime.Lifetime
import com.jetbrains.rd.util.lifetime.onTermination
import com.jetbrains.rd.util.reactive.adviseWithPrev
import com.jetbrains.rd.util.reactive.map
import com.jetbrains.rd.util.reactive.viewNotNull
import java.awt.Cursor
import java.awt.Point
import java.awt.event.MouseEvent
import java.time.Duration
import javax.swing.JLabel
import javax.swing.SwingUtilities
class CodeVisionSelectionController private constructor(val lifetime: Lifetime,
val editor: EditorImpl,
val projectModel: ProjectCodeVisionModel) {
companion object {
val map = HashMap<Editor, CodeVisionSelectionController>()
fun install(editor: EditorImpl, projectModel: ProjectCodeVisionModel) {
var controller = map[editor]
if (controller != null) return
val lifetime = editor.disposable.createLifetime()
controller = CodeVisionSelectionController(lifetime, editor, projectModel)
map[editor] = controller
lifetime.onTermination {
map.remove(editor)
}
}
}
private val hovered = projectModel.hoveredInlay
private val hoveredEntry = projectModel.hoveredEntry
private val lensPopupActive = projectModel.lensPopupActive
init {
editor.contentComponent.windowAncestor().map { it != null }.view(lifetime) { ltmain, inHierarchy ->
if (inHierarchy) {
hovered.adviseWithPrev(ltmain) { previousInlay, currentInlay ->
previousInlay.asNullable?.repaint()
currentInlay?.repaint()
}
hovered.view(ltmain) { lt, _ ->
hoveredEntry.view(lt) { entryLifetime, _ ->
hovered.value?.repaint()
editor.mousePressed().advise(entryLifetime) {
entryPressHandler(it)
}
editor.mouseReleased().advise(entryLifetime) {
val mouseEvent: MouseEvent = it.mouseEvent
checkEditorMousePosition(editor.contentComponent.componentHoverPoint()) ?: return@advise
if (mouseEvent.isPopupTrigger) it.consume()
}
}
lensPopupActive.view(lt) { activePopupLifetime, popupActive ->
if (!popupActive) {
hoveredEntry.debounceNotNull(Duration.ofMillis(1000), SwingScheduler).asProperty(null)
.viewNotNull(activePopupLifetime) { lt1, it ->
showTooltip(lt1, it)
}
}
}
}
hoveredEntry.map { it != null }.advise(ltmain) { hasHoveredEntry ->
updateCursor(hasHoveredEntry)
}
editor.mousePoint().advise(ltmain) {
checkEditorMousePosition(it)
}
}
else if (hovered.value?.editor == editor) {
clearHovered()
}
}
}
private fun entryPressHandler(event: EditorMouseEvent) {
val mouseEvent: MouseEvent = event.mouseEvent
val entry = checkEditorMousePosition(mouseEvent.point) ?: return
editor.contentComponent.requestFocus()
event.consume()
val rangeLensesModel = hovered.value?.getUserData(CodeVisionListData.KEY)?.rangeCodeVisionModel ?: return
entry.putUserData(codeVisionEntryMouseEventKey, mouseEvent)
if (SwingUtilities.isLeftMouseButton(mouseEvent)) {
rangeLensesModel.handleLensClick(entry)
}
else if (SwingUtilities.isRightMouseButton(mouseEvent)) {
rangeLensesModel.handleLensRightClick()
}
}
private fun updateCursor(hasHoveredEntry: Boolean) {
val cursor =
if (hasHoveredEntry)
Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)
else
Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)
if (editor.contentComponent.cursor != cursor)
UIUtil.setCursor(editor.contentComponent, cursor)
}
private fun showTooltip(lt: Lifetime, entry: CodeVisionEntry) {
val text = entry.tooltipText()
if (text.isEmpty()) return
val ld = lt.createNested()
val inlay = hovered.value ?: return
val inlayBounds = inlay.bounds ?: return
val renderer = inlay.renderer as CodeVisionRenderer
val entryBounds = renderer.entryBounds(inlay, entry) ?: return
val x = inlayBounds.x + entryBounds.x + (entryBounds.width / 2)
val y = inlayBounds.y + (inlayBounds.height / 2)
val contentComponent = inlay.editor.contentComponent
val component = inlay.editor.component
val relativePoint = RelativePoint(contentComponent, Point(x, y))
val tooltip = IdeTooltip(component, relativePoint.getPoint(component), JLabel(text))
val currentTooltip = IdeTooltipManager.getInstance().show(tooltip, false, false)
inlay.editor.scrollingModel.visibleAreaChanged().advise(ld) {
ld.terminate()
}
ld.onTermination { currentTooltip.hide() }
}
private fun checkEditorMousePosition(editorMousePosition: Point?): CodeVisionEntry? {
if (editorMousePosition == null) {
clearHovered()
return null
}
val hoveredInlay = editor.inlayModel.getElementAt(editorMousePosition)
return updateHovered(hoveredInlay, editorMousePosition)
}
private fun updateHovered(hoveredInlay: Inlay<EditorCustomElementRenderer>?, mouseOnInlay: Point?): CodeVisionEntry? {
if (mouseOnInlay == null || hoveredInlay == null || hoveredInlay.renderer !is CodeVisionRenderer) {
clearHovered()
return null
}
val bounds = hoveredInlay.bounds ?: run {
clearHovered()
return null
}
if (CodeVisionTheme.yInInlayBounds(mouseOnInlay.y, bounds)) {
val renderer = hoveredInlay.renderer as CodeVisionRenderer
val entry = renderer.hoveredEntry(hoveredInlay, mouseOnInlay.x - bounds.x, mouseOnInlay.y - bounds.y)
hovered.set(hoveredInlay)
hoveredEntry.set(entry)
return entry
}
clearHovered()
return null
}
private fun clearHovered() {
hovered.set(null)
hoveredEntry.set(null)
}
}
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