update at 2026-03-04 13:25:26

pxterm/scripts/archive/cjs_tools/patch_touch.cjs

@@ -0,0 +1,93 @@
+const fs = require('fs');
+let code = fs.readFileSync('src/components/TerminalPanel.vue', 'utf8');
+
+// Replace standard touch handlers to use JS custom scrolling with deep logging
+let newStart = `    onTouchKeyboardTouchStart = (event: TouchEvent) => {
+      clearTouchScrollMomentum();
+      if (event.touches.length > 0) {
+        touchScrollLastY = event.touches[0]?.clientY || 0;
+        touchScrollLastTime = performance.now();
+        touchScrollVelocity = 0;
+      }
+      
+      console.log("[Scroll] 👆 Touch START:", {
+        y: touchScrollLastY,
+        time: touchScrollLastTime.toFixed(1),
+        viewportScrollTop: viewportScroller?.scrollTop
+      });
+      
+      if (!helperTextarea) return;
+      if (focusKeyboardTimerId !== null) {
+        window.clearTimeout(focusKeyboardTimerId);
+        focusKeyboardTimerId = null;
+        clearFocusKeyboardBlurRecover();
+        focusKeyboardInProgress = false;
+      }
+      helperTextarea.readOnly = true;
+      if (DEBUG_TOUCH_FOCUS) {
+        console.log("[TouchFocus] touchstart → readOnly=true (no blur)");
+      }
+    };`;
+
+let newMove = `    onTouchKeyboardTouchMove = (event: TouchEvent) => {
+      const hasSelection = hasActiveNativeSelectionInTerminal();
+      if (hasSelection) {
+        lastTouchAction = "PASS_NATIVE";
+        event.stopImmediatePropagation();
+        return;
+      }
+      
+      const now = performance.now();
+      const dt = now - touchScrollLastTime;
+      const currentY = event.touches[0]?.clientY || 0;
+      const dy = currentY - touchScrollLastY;
+      
+      // Stop xterm from intercepting this manually
+      event.stopImmediatePropagation();
+
+      if (viewportScroller && dt > 0) {
+        const before = viewportScroller.scrollTop;
+        if (dy !== 0) {
+          // JS 强控滑动：完全跟手，零延迟
+          viewportScroller.scrollTop -= dy;
+        }
+
+        // 计算物理滑动速度，用于释放后的动量
+        const v = (-dy / dt) * 16; 
+        if (touchScrollVelocity * v > 0) {
+          touchScrollVelocity = touchScrollVelocity * 0.5 + v * 0.5;
+        } else {
+          touchScrollVelocity = v;
+        }
+
+        // 限制最大动量
+        const touchMaxSpeed = 120; // 匹配原本常量
+        if (touchScrollVelocity > touchMaxSpeed) touchScrollVelocity = touchMaxSpeed;
+        else if (touchScrollVelocity < -touchMaxSpeed) touchScrollVelocity = -touchMaxSpeed;
+
+        console.log(\`[Scroll] 🖐️ MOVE | 跟手延迟Δt=\${dt.toFixed(1)}ms | 手指位移Δy=\${dy.toFixed(1)}px | 渲染视口=\${before}→\${viewportScroller.scrollTop} | 当前算得速度v=\${v.toFixed(2)}\`);
+      }
+
+      touchScrollLastY = currentY;
+      touchScrollLastTime = now;
+    };`;
+
+let newEnd = `    onTouchKeyboardTouchEnd = () => {
+      console.log(\`[Scroll] 👇 Touch END | 释放时瞬时速度=\${touchScrollVelocity.toFixed(2)} | 最终 scrollTop: \${viewportScroller?.scrollTop}\`);
+      
+      // 添加阈值，防止极轻微误触引发滚动
+      const threshold = 0.2;
+      if (Math.abs(touchScrollVelocity) > threshold) {
+        // 轻微乘子放大，提升顺滑手感
+        touchScrollVelocity *= 1.35;
+        console.log(\`[Scroll] 🚀 触发惯性滚动，起步速度=\${touchScrollVelocity.toFixed(2)}\`);
+        runTouchScrollMomentum();
+      } else {
+        console.log(\`[Scroll] 🛑 速度太小(\${touchScrollVelocity.toFixed(2)})，不触发惯性\`);
+      }
+    };`;
+
+code = code.replace(/onTouchKeyboardTouchStart = \(event: TouchEvent\) => \{[\s\S]*?\}\;\n    onTouchKeyboardTouchMove = \(event: TouchEvent\) => \{[\s\S]*?\}\;\n    onTouchKeyboardTouchEnd = \(\) => \{[\s\S]*?\}\;/m, 
+  newStart + '\n' + newMove + '\n' + newEnd);
+
+fs.writeFileSync('src/components/TerminalPanel.vue', code);