update

ts_web/elements/wysiwyg/wysiwyg.keyboardhandler.ts

@@ -237,8 +237,26 @@ export class WysiwygKeyboardHandler {
     if (block.type === 'divider' || block.type === 'image') {
       e.preventDefault();
       
-      // Don't delete if it's the only block
+      // If it's the only block, delete it and create a new paragraph
       if (this.component.blocks.length === 1) {
+        // Save state for undo
+        this.component.saveToHistory(false);
+        
+        // Remove the block
+        blockOps.removeBlock(block.id);
+        
+        // Create a new paragraph block
+        const newBlock = blockOps.createBlock('paragraph', '');
+        this.component.blocks = [newBlock];
+        
+        // Re-render blocks
+        this.component.renderBlocksProgrammatically();
+        
+        // Focus the new block
+        await blockOps.focusBlock(newBlock.id, 'start');
+        
+        // Update value
+        this.component.updateValue();
         return;
       }
       
@@ -292,7 +310,13 @@ export class WysiwygKeyboardHandler {
       e.preventDefault();
       const prevBlock = blockOps.getPreviousBlock(block.id);
       
-      if (prevBlock && prevBlock.type !== 'divider') {
+      if (prevBlock) {
+        // If previous block is non-editable (divider/image), select it first
+        if (prevBlock.type === 'divider' || prevBlock.type === 'image') {
+          await blockOps.focusBlock(prevBlock.id);
+          return;
+        }
+        
         console.log('Backspace at start: Merging with previous block');
         
         // Save checkpoint for undo
@@ -377,8 +401,26 @@ export class WysiwygKeyboardHandler {
     if (block.type === 'divider' || block.type === 'image') {
       e.preventDefault();
       
-      // Don't delete if it's the only block
+      // If it's the only block, delete it and create a new paragraph
       if (this.component.blocks.length === 1) {
+        // Save state for undo
+        this.component.saveToHistory(false);
+        
+        // Remove the block
+        blockOps.removeBlock(block.id);
+        
+        // Create a new paragraph block
+        const newBlock = blockOps.createBlock('paragraph', '');
+        this.component.blocks = [newBlock];
+        
+        // Re-render blocks
+        this.component.renderBlocksProgrammatically();
+        
+        // Focus the new block
+        await blockOps.focusBlock(newBlock.id, 'start');
+        
+        // Update value
+        this.component.updateValue();
         return;
       }
       
@@ -408,7 +450,38 @@ export class WysiwygKeyboardHandler {
       return;
     }
     
-    // For editable blocks, let browser handle normal delete
+    // For editable blocks, check if we're at the end and next block is non-editable
+    const blockWrapper = this.component.shadowRoot?.querySelector(`[data-block-id="${block.id}"]`);
+    const blockComponent = blockWrapper?.querySelector('dees-wysiwyg-block') as any;
+    if (!blockComponent || !blockComponent.shadowRoot) return;
+    
+    // Get the actual editable element
+    const target = block.type === 'code' 
+      ? blockComponent.shadowRoot.querySelector('.block.code') as HTMLElement
+      : blockComponent.shadowRoot.querySelector('.block') as HTMLElement;
+    if (!target) return;
+    
+    // Get cursor position
+    const parentComponent = blockComponent.closest('dees-input-wysiwyg');
+    const shadowRoots: ShadowRoot[] = [];
+    if (parentComponent?.shadowRoot) shadowRoots.push(parentComponent.shadowRoot);
+    shadowRoots.push(blockComponent.shadowRoot);
+    
+    const cursorPos = WysiwygSelection.getCursorPositionInElement(target, ...shadowRoots);
+    const textLength = target.textContent?.length || 0;
+    
+    // Check if cursor is at the end of the block
+    if (cursorPos === textLength) {
+      const nextBlock = blockOps.getNextBlock(block.id);
+      
+      if (nextBlock && (nextBlock.type === 'divider' || nextBlock.type === 'image')) {
+        e.preventDefault();
+        await blockOps.focusBlock(nextBlock.id);
+        return;
+      }
+    }
+    
+    // Otherwise, let browser handle normal delete
   }
 
   /**