feat: show/allow setting decoded base64 values in Secrets, ConfigMaps (redhat-developer#663)

Signed-off-by: Andre Dietisheim <[email protected]>

Author: adietish

.github/workflows/IJ.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        IJ: [IC-2021.1, IC-2021.2, IC-2021.3, IC-2022.1, IC-2022.2, IC-2022.3, IC-2023.1, IC-2023.2, IC-2023.3]
+        IJ: [IC-2022.1, IC-2022.2, IC-2022.3, IC-2023.1, IC-2023.2, IC-2023.3]
 
     steps:
     - uses: actions/checkout@v2

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/SwingUtils.kt

@@ -0,0 +1,30 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.kubernetes
+
+import com.intellij.ui.components.JBLabel
+import com.intellij.util.ui.JBUI
+import com.intellij.util.ui.UIUtil
+import javax.swing.text.JTextComponent
+
+fun createExplanationLabel(text: String): JBLabel {
+	return JBLabel(text).apply {
+		componentStyle = UIUtil.ComponentStyle.SMALL
+		foreground = JBUI.CurrentTheme.Link.Foreground.DISABLED
+	}
+}
+
+fun insertNewLineAtCaret(textComponent: JTextComponent) {
+	val caretPosition = textComponent.caretPosition
+	val newText = StringBuilder(textComponent.text).insert(caretPosition, '\n').toString()
+	textComponent.text = newText
+	textComponent.caretPosition = caretPosition + 1
+}

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/balloon/StringInputBalloon.kt

@@ -0,0 +1,241 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.kubernetes.balloon
+
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.ui.ComponentValidator
+import com.intellij.openapi.ui.ValidationInfo
+import com.intellij.openapi.ui.popup.Balloon
+import com.intellij.openapi.ui.popup.JBPopupFactory
+import com.intellij.openapi.ui.popup.JBPopupListener
+import com.intellij.openapi.ui.popup.LightweightWindowEvent
+import com.intellij.openapi.util.Disposer
+import com.intellij.openapi.util.ExpirableRunnable
+import com.intellij.openapi.util.text.StringUtil
+import com.intellij.openapi.wm.IdeFocusManager
+import com.intellij.ui.ScrollPaneFactory
+import com.intellij.ui.awt.RelativePoint
+import com.intellij.ui.components.JBLabel
+import com.intellij.ui.components.JBTextArea
+import com.intellij.util.ui.JBUI
+import com.redhat.devtools.intellij.kubernetes.createExplanationLabel
+import com.redhat.devtools.intellij.kubernetes.insertNewLineAtCaret
+import java.awt.BorderLayout
+import java.awt.event.KeyAdapter
+import java.awt.event.KeyEvent
+import java.awt.event.KeyListener
+import java.awt.event.MouseAdapter
+import java.awt.event.MouseEvent
+import java.awt.event.MouseListener
+import java.util.function.Supplier
+import javax.swing.JButton
+import javax.swing.JPanel
+import javax.swing.JTextArea
+import javax.swing.text.JTextComponent
+import kotlin.math.max
+
+class StringInputBalloon(
+	private val value: String,
+	private val setValue: (String) -> Unit,
+	private val editor: Editor
+) {
+
+	private var isValid = false
+
+	fun show(event: MouseEvent) {
+		val disposable = Disposer.newDisposable()
+		val panel = JPanel(BorderLayout())
+
+		val balloon = createBalloon(panel)
+		Disposer.register(balloon, disposable)
+
+		val view = TextAreaView(value, balloon, disposable)
+		view.addTo(panel)
+		balloon.addListener(onClosed(view))
+
+		balloon.show(RelativePoint(event), Balloon.Position.above)
+
+		focusTextAre(view)
+	}
+
+	private fun focusTextAre(view: TextAreaView) {
+		val focusManager = IdeFocusManager.getInstance(editor.project)
+		focusManager.doWhenFocusSettlesDown(onFocused(focusManager, view.textArea))
+	}
+
+	private fun createBalloon(panel: JPanel): Balloon {
+		return JBPopupFactory.getInstance()
+			.createBalloonBuilder(panel)
+			.setCloseButtonEnabled(true)
+			.setBlockClicksThroughBalloon(true)
+			.setAnimationCycle(0)
+			.setHideOnKeyOutside(true)
+			.setHideOnClickOutside(true)
+			.setFillColor(panel.background)
+			.setHideOnAction(false) // allow user to Ctrl+A & Ctrl+C
+			.createBalloon()
+	}
+
+	private fun onClosed(view: TextAreaView): JBPopupListener {
+		return object : JBPopupListener {
+			override fun beforeShown(event: LightweightWindowEvent) {
+				// do nothing
+			}
+
+			override fun onClosed(event: LightweightWindowEvent) {
+				view.dispose()
+			}
+		}
+	}
+
+	private fun onFocused(focusManager: IdeFocusManager, field: JTextComponent): ExpirableRunnable {
+		return object : ExpirableRunnable {
+
+			override fun run() {
+				focusManager.requestFocus(field, true)
+				field.selectAll()
+			}
+
+			override fun isExpired(): Boolean {
+				return false
+			}
+		}
+	}
+
+	private fun isMultiline(): Boolean {
+		return value.contains('\n')
+	}
+
+	private fun setValue(balloon: Balloon, textComponent: JTextComponent): Boolean {
+		return if (isValid) {
+			balloon.hide()
+			setValue.invoke(textComponent.text)
+			true
+		} else {
+			false
+		}
+	}
+
+	private inner class TextAreaView(
+		private val value: String,
+		private val balloon: Balloon,
+		private val disposable: Disposable
+	) {
+		private val MIN_ROWS = 4
+		private val MAX_COLUMNS = 64
+
+		lateinit var textArea: JTextArea
+		private lateinit var applyButton: JButton
+		private lateinit var keyListener: KeyListener
+
+		fun addTo(panel: JPanel) {
+			val label = JBLabel("Value:")
+			label.border = JBUI.Borders.empty(0, 3, 4, 0)
+			panel.add(label, BorderLayout.NORTH)
+			val textArea = JBTextArea(
+				value,
+				max(MIN_ROWS, value.length.floorDiv(MAX_COLUMNS) + 1), // textarea has text lines + 1
+				MAX_COLUMNS - 1
+			)
+			textArea.lineWrap = !isMultiline() // have text area line wrap if content is not manually wrapped
+			textArea.wrapStyleWord = true
+			val scrolled = ScrollPaneFactory.createScrollPane(textArea, true)
+			panel.add(scrolled, BorderLayout.CENTER)
+			this.keyListener = onKeyPressed(textArea, balloon)
+			textArea.addKeyListener(keyListener)
+			this.textArea = textArea
+
+			val buttonPanel = JPanel(BorderLayout())
+			buttonPanel.border = JBUI.Borders.empty(2, 0, 0, 0)
+			panel.add(buttonPanel, BorderLayout.SOUTH)
+			buttonPanel.add(
+				createExplanationLabel("Shift & Return to insert a new line, Return to apply"),
+				BorderLayout.CENTER
+			)
+			applyButton = JButton("Apply")
+			applyButton.addMouseListener(onApply(textArea, balloon))
+			buttonPanel.add(applyButton, BorderLayout.EAST)
+
+			addValidation(textArea, disposable)
+		}
+
+		private fun addValidation(textComponent: JTextComponent, disposable: Disposable) {
+			ComponentValidator(disposable)
+				.withValidator(ValueValidator(textComponent))
+				.installOn(textComponent)
+				.andRegisterOnDocumentListener(textComponent)
+				.revalidate()
+		}
+
+		private fun onApply(textComponent: JTextComponent, balloon: Balloon): MouseListener {
+			return object : MouseAdapter() {
+				override fun mouseClicked(e: MouseEvent?) {
+					setValue(balloon, textComponent)
+				}
+			}
+		}
+
+		fun dispose() {
+			textArea.removeKeyListener(keyListener)
+		}
+
+		private fun onKeyPressed(textComponent: JTextComponent, balloon: Balloon): KeyListener {
+			return object : KeyAdapter() {
+				override fun keyPressed(e: KeyEvent) {
+					when {
+						KeyEvent.VK_ESCAPE == e.keyCode ->
+							balloon.hide()
+
+						KeyEvent.VK_ENTER == e.keyCode
+								&& (e.isShiftDown || e.isControlDown) -> {
+							insertNewLineAtCaret(textComponent)
+						}
+
+						KeyEvent.VK_ENTER == e.keyCode
+								&& (!e.isShiftDown && !e.isControlDown) ->
+							if (setValue(balloon, textComponent)) {
+								e.consume()
+							}
+					}
+				}
+			}
+		}
+
+		private inner class ValueValidator(private val textComponent: JTextComponent) : Supplier<ValidationInfo?> {
+
+			override fun get(): ValidationInfo? {
+				if (!textComponent.isEnabled
+					|| !textComponent.isVisible
+				) {
+					return null
+				}
+				return validate(textComponent.text)
+			}
+
+			private fun validate(newValue: String): ValidationInfo? {
+				val validation = when {
+					StringUtil.isEmptyOrSpaces(newValue) ->
+						ValidationInfo("Provide a value", textComponent).asWarning()
+
+					value == newValue ->
+						ValidationInfo("Provide new value", textComponent).asWarning()
+
+					else ->
+						null
+				}
+				this@StringInputBalloon.isValid = (validation == null)
+				applyButton.setEnabled(validation == null)
+				return validation
+			}
+		}
+	}
+}