fix: Maximize toggle not working on Windows, see JetBrains/compose-mu…

…ltiplatform#1553
MineInAbyss · Apr 15, 2024 · be1e9bc · be1e9bc
1 parent 4c8ce7f
commit be1e9bc
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Showing 2 changed files with 61 additions and 5 deletions.
diff --git a/src/main/kotlin/com/mineinabyss/launchy/ui/elements/LaunchyWindowDraggableArea.kt b/src/main/kotlin/com/mineinabyss/launchy/ui/elements/LaunchyWindowDraggableArea.kt
@@ -17,7 +17,7 @@ fun WindowScope.BetterWindowDraggableArea(
     val topBar = TopBarProvider.current
     WindowDraggableArea(modifier.pointerInput(Unit) {
         detectDragGestures(onDragStart = {
-            topBar.windowState.placement = WindowPlacement.Floating
+            topBar.ensureFloating()
         }) { _, _ -> }
     }) {
         content()

diff --git a/src/main/kotlin/com/mineinabyss/launchy/ui/state/TopBarState.kt b/src/main/kotlin/com/mineinabyss/launchy/ui/state/TopBarState.kt
@@ -5,6 +5,10 @@ import androidx.compose.runtime.compositionLocalOf
 import androidx.compose.ui.window.WindowPlacement
 import androidx.compose.ui.window.WindowScope
 import androidx.compose.ui.window.WindowState
+import com.mineinabyss.launchy.util.OS
+import java.awt.Dimension
+import java.awt.Point
+import java.awt.Toolkit
 
 val TopBarProvider = compositionLocalOf<TopBarState> { error("No top bar provided") }
 val TopBar: TopBarState
@@ -20,9 +24,61 @@ class TopBarState(
     val windowState: WindowState,
     val windowScope: WindowScope,
 ) {
-    fun toggleMaximized() {
-        if (windowState.placement != WindowPlacement.Maximized)
-            windowState.placement = WindowPlacement.Maximized
-        else windowState.placement = WindowPlacement.Floating
+    var floatingWindowSize: WindowSize? = null
+
+    fun ensureMaximized() {
+        when (OS.get()) {
+            OS.WINDOWS -> {
+                if (floatingWindowSize != null) return
+                val window = windowScope.window
+                val graphicsConfiguration = window.graphicsConfiguration
+                val insets = Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfiguration)
+                val bounds = graphicsConfiguration.bounds
+                floatingWindowSize = WindowSize(window.size, window.location)
+                window.setSize(bounds.width, bounds.height - insets.bottom)
+                window.setLocation(bounds.x, bounds.y)
+            }
+
+            else -> {
+                windowState.placement = WindowPlacement.Maximized
+            }
+
+        }
+    }
+
+    fun ensureFloating() {
+        when (OS.get()) {
+            OS.WINDOWS -> {
+                if (floatingWindowSize == null) return
+                val window = windowScope.window
+                floatingWindowSize?.let {
+                    window.size = it.size
+                    window.location = it.location
+                    floatingWindowSize = null
+                }
+            }
+
+            else -> {
+                windowState.placement = WindowPlacement.Floating
+            }
+        }
+    }
+
+    fun toggleMaximized() = when (OS.get()) {
+        OS.WINDOWS -> {
+            if (floatingWindowSize == null) ensureMaximized()
+            else ensureFloating()
+        }
+
+        else -> {
+            if (windowState.placement == WindowPlacement.Maximized)
+                ensureFloating()
+            else ensureMaximized()
+        }
     }
 }
+
+class WindowSize(
+    val size: Dimension,
+    val location: Point,
+)