add shortcut and action karousel-column-expand-visible

src/actions.ts

@@ -175,6 +175,12 @@ function initActions(world: World) {
             });
         },
 
+        columnExpandVisible: () => {
+            const grid = world.getCurrentGrid();
+            grid.expandColumnsVisible();
+            grid.arrange();
+        },
+
         gridScrollLeft: () => {
             gridScroll(world, -world.config.manualScrollStep);
         },

src/layout/Grid.ts

@@ -114,6 +114,31 @@ class Grid {
         return last;
     }
 
+    expandColumnsVisible() {
+        const startColumn = this.getLeftmostVisibleColumn(true);
+        const endColumn = this.getRightmostVisibleColumn(true);
+        if (startColumn === null || endColumn === null) {
+            return;
+        }
+
+        const startX = startColumn.gridX;
+        const endX = endColumn.gridX + endColumn.width;
+        const width = endX - startX;
+        const scaleRatio = this.tilingArea.width / width;
+        let remainingWidth = this.tilingArea.width;
+
+        for (const column of this.columns.iteratorFrom(startColumn)) {
+            if (column !== endColumn) {
+                const newWidth = Math.round(column.width * scaleRatio);
+                column.setWidth(newWidth, true);
+                remainingWidth -= newWidth + this.world.config.gapsInnerHorizontal;
+            } else {
+                column.setWidth(remainingWidth, true);
+                break;
+            }
+        }
+    }
+
     scrollToColumn(column: Column) {
         const left = column.gridX - this.scrollX; // in screen space
         const right = left + column.width; // in screen space

src/shortcuts.ts

@@ -45,6 +45,7 @@ function registerShortcuts(world: World) {
     registerShortcutDbg("karousel-column-move-start", "Karousel: Move column to start", "Meta+Ctrl+Shift+Home", actions.columnMoveStart);
     registerShortcutDbg("karousel-column-move-end", "Karousel: Move column to end", "Meta+Ctrl+Shift+End", actions.columnMoveEnd);
     registerShortcutDbg("karousel-column-expand", "Karousel: Expand column", "Meta+Ctrl+X", actions.columnExpand);
+    registerShortcutDbg("karousel-column-expand-visible", "Karousel: Expand visible columns", "Meta+Ctrl+Alt+X", actions.columnExpandVisible)
 
     registerShortcutDbg("karousel-grid-scroll-focused", "Karousel: Scroll to focused window", "Meta+Alt+Return", actions.gridScrollFocused);
     registerShortcutDbg("karousel-grid-scroll-left-column", "Karousel: Scroll one column to the left", "Meta+Alt+A", actions.gridScrollLeftColumn);