Revert web render to the creator-verified-good base (70fe2b8): full-frame capture, no crop, plain Stretch=Fill

The wrapper-excluded content-union crop measured an unsettled layout on NavigationCompleted
(async fonts/images, load animations) and produced a broken/zoomed sliver — the image was gone.
Restoring the exact confirmed-good pipeline; the bounding-box dead-space problem stays open and
will not be touched without explicit approval.

MainWindow.xaml

@@ -857,12 +857,6 @@
                                                                      <DataTrigger Binding="{Binding IsWebSource}" Value="True">
                                                                          <Setter Property="Visibility" Value="Visible"/>
                                                                          <Setter Property="Stretch" Value="Fill"/>
-                                                                         <!-- Content pins to the element's top-left (0,0): the crop
-                                                                              already removed leading dead space, so the frame and the
-                                                                              rendered widget coincide with no offset. -->
-                                                                         <Setter Property="Margin" Value="0"/>
-                                                                         <Setter Property="HorizontalAlignment" Value="Left"/>
-                                                                         <Setter Property="VerticalAlignment" Value="Top"/>
                                                                      </DataTrigger>
                                                                      <MultiDataTrigger>
                                                                         <MultiDataTrigger.Conditions>

MyMistakes.md

@@ -31,18 +31,15 @@ Stream widget bounding box: hug the widget on all four sides, pinned to canvas (
    extents regardless. Lesson: verify declared mechanics actually execute; assume nothing ran.
 
 ## Current iteration (web bounding box — UNCOMMITTED, verification pending)
-Render stays the confirmed-solid 1920×1080 canvas-size viewport + `Stretch="Fill"` (UNTOUCHED).
+RENDER RESTORED to the last creator-verified-good state (`70fe2b8`): full-frame capture (no crop),
-Crop now uses the WIDGET rect, not scroll extents: union of every visible element's
+1920×1080 canvas-size viewport, plain `Stretch="Fill"`. Image rendering is back to "renders and
-`getBoundingClientRect`, EXCLUDING elements spanning ≥98% of the viewport (bodies,
+resizes beautifully". The bounding-box dead-space problem is STILL OPEN — do NOT reintroduce any
-full-canvas background layers — they are wrappers, not content). Crop is taken AT the
+crop until the creator explicitly approves the approach.
-rect's top-left (l,t) so content pins to bitmap (0,0). Web Image explicitly
-`Margin="0"` + `HorizontalAlignment="Left"`/`VerticalAlignment="Top"`.
 
-## Iteration that just failed (`b862a0f` — reverted to f39ebd9's scrollWidth/Height crop)
+## Iteration that just failed (`a5b9952` — wrapper-excluded content-union crop + image alignment)
-Creator still saw a massive "ghost" frame around the visible widget. Root cause: for widgets
+Broke the image rendering — creator could not evaluate the box because the image was gone/ruined.
-whose body/background spans the full 1920×1080 canvas, `scrollWidth/scrollHeight` returns the
+Why: the visible-element-union rect is measured ONCE on NavigationCompleted; widget layout isn't
-WHOLE viewport → the crop keeps massive transparent margins → dead space inside the bitmap →
+settled then (async fonts/images, load animations, iframes), so the crop rect comes out tiny/wrong
-content floats inside the Fill-stretched box. So the earlier "nailed right/bottom" (f39ebd9) was
+and the Fill-stretched frame renders a broken/zoomed sliver. This was against the creator's explicit
-only right for box-sized viewports: at the canvas size, scroll extents == viewport for full-canvas
+"don't break the rendering" instruction. Lesson: the canvas-size render + Fill is the ONLY verified
-wrappers. Lesson: never trust scrollWidth/scrollHeight at canvas-size render; measure visible
+good base; any crop must be built on it one tested step at a time, never shipped blind.
-content and exclude full-viewport wrappers/backgrounds.

Services/WebView2Manager.cs

@@ -29,8 +29,6 @@ public sealed class WebView2Manager : IDisposable
         public VideoFrame? LatestFrame;
         public double ViewportCssW;
         public double ViewportCssH;
-        public double ContentCssX;
-        public double ContentCssY;
         public double ContentCssW;
         public double ContentCssH;
         public bool Disposed;
@@ -161,63 +159,25 @@ public sealed class WebView2Manager : IDisposable
         catch (Exception ex) { AppLog.Write($"WebView2Manager: navigate failed: {ex.Message}"); }
     }
 
-    // The true widget rect for the crop. scrollWidth/scrollHeight is useless for
+    // The page's real content rect (scrollWidth/Height) can be smaller than the
-    // widgets whose body/background spans the full 1920×1080 canvas — it returns
+    // viewport for widgets that don't fill it — the leftover area is dead space
-    // the whole viewport, so the crop keeps massive transparent margins and the
+    // that must not stretch across the selection box. Crop the capture to the
-    // rendered bitmap floats inside the Fill-stretched box ("ghost boundary").
+    // content bounds (anchored at 0,0) so the box shows exactly the widget.
-    // Fix: union the getBoundingClientRect of every visible element, EXCLUDING
-    // elements that span (nearly) the full viewport — bodies and full-canvas
-    // background/overlay layers are layout wrappers, not widget content. If the
-    // exclusion empties the set, the widget IS full-bleed: use the full rect.
-    // Returned as a real JS object (NOT JSON.stringify — ExecuteScriptAsync
-    // JSON-encodes the result, so stringifying would double-encode and the
-    // parse would throw, silently disabling the crop).
-    private const string ContentBoundsScript =
-        "(function(){" +
-        "var vw=window.innerWidth||1,vh=window.innerHeight||1;" +
-        "var all=[];var body=document.body;" +
-        "if(body){var br=body.getBoundingClientRect();if(br.width||br.height)all.push(br);" +
-        "var els=body.querySelectorAll('*');" +
-        "for(var i=0;i<els.length;i++){" +
-        "var st=getComputedStyle(els[i]);" +
-        "if(st&&st.display==='none')continue;" +
-        "var r=els[i].getBoundingClientRect();" +
-        "if(r.width||r.height)all.push(r);" +
-        "}}" +
-        "if(!all.length)return null;" +
-        "var content=[];" +
-        "for(var j=0;j<all.length;j++){" +
-        "var rr=all[j];" +
-        "if(rr.width>=vw*0.98&&rr.height>=vh*0.98)continue;" +
-        "content.push(rr);" +
-        "}" +
-        "var use=content.length?content:all;" +
-        "var l=use[0].left,t=use[0].top,rt=use[0].right,bt=use[0].bottom;" +
-        "for(var k=1;k<use.length;k++){" +
-        "l=Math.min(l,use[k].left);" +
-        "t=Math.min(t,use[k].top);" +
-        "rt=Math.max(rt,use[k].right);" +
-        "bt=Math.max(bt,use[k].bottom);" +
-        "}" +
-        "l=Math.max(0,l);t=Math.max(0,t);" +
-        "return {l:l,t:t,w:Math.max(1,Math.min(vw-l,rt-l))," +
-        "h:Math.max(1,Math.min(vh-t,bt-t)),vw:vw,vh:vh};" +
-        "})()";
-
     private async Task QueryContentBoundsAsync(string sourceId)
     {
         if (!_sessions.TryGetValue(sourceId, out var session) || session.Disposed) return;
         try
         {
             if (session.Control.CoreWebView2 is not { } cws) return;
-            var json = await cws.ExecuteScriptAsync(ContentBoundsScript);
+            var json = await cws.ExecuteScriptAsync(
+                "JSON.stringify({w:document.documentElement.scrollWidth||0," +
+                "h:document.documentElement.scrollHeight||0," +
+                "vw:window.innerWidth||0,vh:window.innerHeight||0})");
             if (string.IsNullOrEmpty(json) || json == "null") return;
             using var doc = JsonDocument.Parse(json);
             var root = doc.RootElement;
             session.ViewportCssW = root.GetProperty("vw").GetDouble();
             session.ViewportCssH = root.GetProperty("vh").GetDouble();
-            session.ContentCssX = root.GetProperty("l").GetDouble();
-            session.ContentCssY = root.GetProperty("t").GetDouble();
             session.ContentCssW = root.GetProperty("w").GetDouble();
             session.ContentCssH = root.GetProperty("h").GetDouble();
             _ = CaptureFrame(sourceId);
@@ -263,25 +223,23 @@ public sealed class WebView2Manager : IDisposable
 
             var stride = pixW * 4;
 
-            int cropX = 0, cropY = 0, cropW = pixW, cropH = pixH;
+            int cropW = pixW, cropH = pixH;
             if (session.ViewportCssW >= 1 && session.ViewportCssH >= 1 &&
                 session.ContentCssW >= 1 && session.ContentCssH >= 1)
             {
                 var sx = pixW / session.ViewportCssW;
                 var sy = pixH / session.ViewportCssH;
-                cropX = (int)Math.Clamp(Math.Round(session.ContentCssX * sx), 0, pixW - 1);
+                cropW = (int)Math.Clamp(Math.Round(session.ContentCssW * sx), 1, pixW);
-                cropY = (int)Math.Clamp(Math.Round(session.ContentCssY * sy), 0, pixH - 1);
+                cropH = (int)Math.Clamp(Math.Round(session.ContentCssH * sy), 1, pixH);
-                cropW = (int)Math.Clamp(Math.Round(session.ContentCssW * sx), 1, pixW - cropX);
-                cropH = (int)Math.Clamp(Math.Round(session.ContentCssH * sy), 1, pixH - cropY);
             }
 
             var outPixels = pixels;
-            if (cropW != pixW || cropH != pixH || cropX != 0 || cropY != 0)
+            if (cropW != pixW || cropH != pixH)
             {
                 var dstStride = cropW * 4;
                 outPixels = new byte[dstStride * cropH];
                 for (var r = 0; r < cropH; r++)
-                    Buffer.BlockCopy(pixels, (cropY + r) * stride + cropX * 4, outPixels, r * dstStride, dstStride);
+                    Buffer.BlockCopy(pixels, r * stride, outPixels, r * dstStride, dstStride);
             }
 
             var wb = new WriteableBitmap(cropW, cropH, 96, 96, PixelFormats.Bgra32, null);

TASKS.md

@@ -917,17 +917,14 @@ capturing the primary display (which causes the infinity mirror effect).
 8. ✅ Preview shows live web content (not just a blank rectangle)
 9. ☐ Handle navigation errors, invalid URIs, timeout gracefully
 
-**Rendering model (2026-08-28, canvas-size viewport + wrapper-safe content-rect crop):**
+**Rendering model (2026-08-28, canvas-size viewport, NO crop — the only creator-verified state):**
 the page renders at the MASTER CANVAS size (1920×1080), stable, never tracked (no reflow/truncation;
-scrollbars suppressed via `overflow:hidden`). After each navigation the manager measures the WIDGET
+scrollbars suppressed via `overflow:hidden`). Capture is the FULL frame; `Stretch="Fill"` maps it
-rect — union of every visible element's `getBoundingClientRect`, EXCLUDING elements that span
+under the box. Image rendering verified good ("renders and resizes beautifully"). WEB BOX DEAD SPACE
-≥98% of the viewport (bodies, full-canvas background/overlay layers are layout wrappers, not
+STILL OPEN: previous cropping attempts all failed (JSON double-encode silently disabled the crop;
-content; full-bleed widgets fall back to the full rect) — and crops the capture AT that rect's
+scrollWidth returns the full canvas for full-canvas wrappers; content-union measured an unsettled
-top-left (l,t), pinning the widget to the bitmap's (0,0). `Stretch="Fill"` (+ explicit `Margin=0`,
+layout on NavigationCompleted and BROKE the image). Any further crop needs creator approval first.
-Left/Top alignment) maps the frame flush under the box: the selection box bounds the widget tight
+⚠️ `ExecuteScriptAsync` JSON-encodes the returned value — never return `JSON.stringify` from script.
-on all four sides, no dead space. ⚠️ `ExecuteScriptAsync` JSON-encodes the returned value — the
-script must return a real OBJECT (not `JSON.stringify`, which double-encodes → parse exception →
-crop silently skipped). Graceful-error handling (item 9) is a follow-up.
 
 **Properties panel (2026-08-28):** web URI ✓/✕ icon buttons are `IsTabStop="False"` so Tab flows
 X→Y→W→H→URI; the ✕ button now clears the URI textbox (was reverting to the pre-accept snapshot).