phase3: badges 2.x->3.x migration (badgeStyle/animation), SearchBar/onPrimary fixes. 596->580

tools/badge_migrate.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+"""badge_migrate.py — 把 badges 2.x 用法迁移到 3.x。
+- animationType: BadgeAnimationType.X  ->  animation: BadgeAnimation.X()
+- Badge(... badgeColor: C, padding: P ...)  ->  Badge(... badgeStyle: BadgeStyle(badgeColor: C, padding: P) ...)
+"""
+import re, glob
+
+def find_calls(text, name):
+    calls=[]
+    for m in re.finditer(r'\b'+name+r'\s*\(', text):
+        if m.start()>0 and (text[m.start()-1].isalnum() or text[m.start()-1]=='_'):
+            continue  # 跳过 BadgeStyle/BadgeAnimation 等同名前缀
+        i=m.end()-1; depth=0; j=i
+        while j<len(text):
+            c=text[j]
+            if c=='(' : depth+=1
+            elif c==')':
+                depth-=1
+                if depth==0: break
+            j+=1
+        if j<len(text):
+            calls.append((m.start(), j, text[i+1:j]))  # inner 不含外层括号
+    return calls
+
+def extract_param(inner, key):
+    """从 inner 中提取 'key: value' 的 value（value 含平衡括号，到顶层逗号）。返回 (value, start, end)。"""
+    for m in re.finditer(r'\b'+key+r'\s*:\s*', inner):
+        start=m.end(); depth=0; j=start
+        while j<len(inner):
+            c=inner[j]
+            if c in '([{': depth+=1
+            elif c in ')]}':
+                if depth==0: break
+                depth-=1
+            elif c==',' and depth==0: break
+            j+=1
+        val=inner[start:j].strip().rstrip(',').strip()
+        return val, m.start(), j
+    return None, None, None
+
+changed_files=0
+for path in glob.glob('lib/**/*.dart', recursive=True):
+    t=open(path).read()
+    if 'Badge(' not in t: continue
+    orig=t
+    # 1) animationType: BadgeAnimationType.X -> animation: BadgeAnimation.X()
+    t=re.sub(r'animationType:\s*BadgeAnimationType\.(\w+)', r'animation: BadgeAnimation.\1()', t)
+    # 2) 合并 badgeColor + padding -> badgeStyle（从后往前处理避免偏移）
+    while True:
+        calls=find_calls(t, 'Badge')
+        did=False
+        for s,e,inner in reversed(calls):
+            bc,_,_=extract_param(inner,'badgeColor')
+            pd,_,_=extract_param(inner,'padding')
+            if not (bc or pd): continue
+            new_inner=inner
+            parts=[]
+            if bc:
+                v,vs,ve=extract_param(new_inner,'badgeColor')
+                # 删除该参数（含尾随逗号）
+                seg=new_inner[vs:ve]
+                after=new_inner[ve:]
+                if after.lstrip().startswith(','): after=after.lstrip()[1:]
+                new_inner=new_inner[:vs]+after
+                parts.append('badgeColor: '+bc)
+            if pd:
+                v,vs,ve=extract_param(new_inner,'padding')
+                seg=new_inner[vs:ve]
+                after=new_inner[ve:]
+                if after.lstrip().startswith(','): after=after.lstrip()[1:]
+                new_inner=new_inner[:vs]+after
+                parts.append('padding: '+pd)
+            badge_style='\n                  badgeStyle: BadgeStyle('+', '.join(parts)+'),'
+            new_inner=badge_style+new_inner
+            t=t[:s]+'Badge('+new_inner+')'+t[e+1:]
+            did=True; break
+        if not did: break
+    if t!=orig:
+        open(path,'w').write(t); changed_files+=1; print('migrated', path)
+print('done, files:', changed_files)