fix: window overflowing small screens

...with high zoom level.

Closes #4063

CHANGELOG.md

@@ -38,6 +38,7 @@
 - crash on clicking "About" when no account is selected (e.g. after deleting an account) #4154
 - show "new group" instead of "new contact" when pasting a group invite link in the search field #4151
 - message input getting unexpectedly re-focused, and not re-focused after some actions if the draft text is not empty #4136
+- the main window overflowing small screens, or/and if zoom level is high #4156
 
 <a id="1_46_8"></a>
 

packages/target-electron/src/application-constants.ts

@@ -40,8 +40,10 @@ export function windowDefaults() {
       y,
     },
     headerHeight,
-    minWidth: 450,
-    minHeight: 450,
+    // On 0.6x zoom Delta Chat and 200x window size it's still somewhat usable,
+    // not much is overflowing.
+    minWidth: 225,
+    minHeight: 125,
     main: targetFile,
     preload: join(htmlDistDir(), 'preload.js'),
   }

packages/target-electron/src/windows/helpers.ts

@@ -11,7 +11,12 @@ export function initMinWinDimensionHandling(
 ): () => void {
   const update_min_size = () => {
     const { workAreaSize } = screen.getPrimaryDisplay()
-    if (workAreaSize.width < minWidth || workAreaSize.height < minHeight) {
+    if (
+      // A multiplier to make space for the taskbar and the window header.
+      // Remember that the taskbar could also be placed vertically.
+      workAreaSize.width * 0.75 < minWidth ||
+      workAreaSize.height * 0.75 < minHeight
+    ) {
       main_window.setMinimumSize(0, 0)
     } else {
       main_window.setMinimumSize(minWidth, minHeight)