1

2025-11-04 16:37:24 +08:00
parent 6fb9e56720
commit 3e2dc4bcb6
6 changed files with 92 additions and 26 deletions
--- a/CustomKeyboard/View/KBFullAccessGuideView.m
+++ b/CustomKeyboard/View/KBFullAccessGuideView.m
@@ -5,6 +5,7 @@

 #import "KBFullAccessGuideView.h"
 #import "Masonry.h"
+#import "KBResponderUtils.h" // 统一查找 UIInputViewController 的工具

@interface KBFullAccessGuideView ()
@property (nonatomic, strong) UIControl *backdrop;
@@ -146,21 +147,12 @@

 #pragma mark - Actions

- (UIInputViewController *)kb_findInputController {
-    UIResponder *res = self;
-    while (res) {
-        if ([res isKindOfClass:[UIInputViewController class]]) {
-            return (UIInputViewController *)res;
-        }
-        res = res.nextResponder;
-    }
-    return nil;
-}
+// 工具方法已提取到 KBResponderUtils.h

 - (void)onTapGoEnable {
    // 在扩展中无法使用 UIApplication。改为委托宿主打开链接：
    // 方案：优先拉起主 App 并由主 App 打开设置页，避免宿主拦截。
-    UIInputViewController *ivc = [self kb_findInputController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
    if (!ivc) { [self dismiss]; return; }
    
    // 先尝试 Universal Link（如未配置可改为你的域名），失败再用自定义 scheme。
--- a/CustomKeyboard/View/KBFunctionView.m
+++ b/CustomKeyboard/View/KBFunctionView.m
@@ -6,6 +6,7 @@
 //

 #import "KBFunctionView.h"
+#import "KBResponderUtils.h" // 统一查找 UIInputViewController 的工具
 #import "KBFunctionBarView.h"
 #import "KBFunctionPasteView.h"
 #import "KBFunctionTagCell.h"
@@ -169,7 +170,7 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
    [KBHUD showInfo:@"处理中…"];
 //    return;
    
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
    if (!ivc) return;

    NSString *title = (indexPath.item < self.itemsInternal.count) ? self.itemsInternal[indexPath.item] : @"";
@@ -268,14 +269,14 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 }
 - (void)onTapDelete {
    NSLog(@"点击：删除");
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
    [proxy deleteBackward];
 }
 - (void)onTapClear {
    NSLog(@"点击：清空");
    // 连续删除：仅清空光标之前的输入（不改动 pasteView 的内容）
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
    // 逐批读取 documentContextBeforeInput 并删除，避免 50 字符窗口限制带来的残留
    NSInteger guard = 0; // 上限保护，避免极端情况下长时间阻塞
@@ -292,7 +293,7 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 - (void)onTapSend {
    NSLog(@"点击：发送");
    // 发送：插入换行。大多数聊天类 App 会把回车视为“发送”
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
    [proxy insertText:@"\n"];
 }
@@ -417,16 +418,6 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";

 #pragma mark - Find Owner Controller

-// 在视图的响应链中查找宿主 UIInputViewController（KeyboardViewController）
- (UIInputViewController *)findInputViewController {
-    UIResponder *responder = self;
-    while (responder) {
-        if ([responder isKindOfClass:[UIInputViewController class]]) {
-            return (UIInputViewController *)responder;
-        }
-        responder = responder.nextResponder;
-    }
-    return nil;
-}
+// 工具方法已提取到 KBResponderUtils.h

@end
--- a/CustomKeyboard/View/KBKeyboardView.m
+++ b/CustomKeyboard/View/KBKeyboardView.m
@@ -6,6 +6,7 @@
 #import "KBKeyboardView.h"
 #import "KBKeyButton.h"
 #import "KBKey.h"
+#import "KBResponderUtils.h" // 封装的响应链工具

@interface KBKeyboardView ()
@property (nonatomic, strong) UIView *row1;
@@ -13,6 +14,8 @@
@property (nonatomic, strong) UIView *row3;
@property (nonatomic, strong) UIView *row4;
@property (nonatomic, strong) NSArray<NSArray<KBKey *> *> *keysForRows;
+// 长按退格的一次次删除控制标记（不使用 NSTimer，仅用 GCD 递归调度）
+@property (nonatomic, assign) BOOL backspaceHoldActive;
@end

@implementation KBKeyboardView
@@ -196,6 +199,16 @@
        [btn addTarget:self action:@selector(onKeyTapped:) forControlEvents:UIControlEventTouchUpInside];
        [row addSubview:btn];

+        // ⌫ 长按：开始连续逐个删除（无需 NSTimer）。使用 UILongPressGestureRecognizer 识别长按，
+        // 在开始态触发递归的轻量调度，每次删除 1 个字符，直到松手或无内容。
+        if (key.type == KBKeyTypeBackspace) {
+            UILongPressGestureRecognizer *lp = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(onBackspaceLongPress:)];
+            // 稍短的判定时间，提升响应（默认约 0.5s）。
+            lp.minimumPressDuration = 0.35;
+            lp.cancelsTouchesInView = YES; // 被识别为长按时，取消普通点击
+            [btn addGestureRecognizer:lp];
+        }
+
        // Shift 按钮选中态随大小写状态变化
        if (key.type == KBKeyTypeShift) {
            btn.selected = self.shiftOn;
@@ -293,6 +306,42 @@
    }
 }

+// 长按退格：按住时以小间隔逐个删除；松手停止。（不使用 NSTimer/DisplayLink）
+- (void)onBackspaceLongPress:(UILongPressGestureRecognizer *)gr {
+    switch (gr.state) {
+        case UIGestureRecognizerStateBegan: {
+            self.backspaceHoldActive = YES;
+            [self kb_backspaceStep];
+        } break;
+        case UIGestureRecognizerStateEnded:
+        case UIGestureRecognizerStateCancelled:
+        case UIGestureRecognizerStateFailed: {
+            self.backspaceHoldActive = NO;
+        } break;
+        default: break;
+    }
+}
+
+#pragma mark - Helpers
+
+// 单步删除并在需要时安排下一次，直到松手或无内容
+- (void)kb_backspaceStep {
+    if (!self.backspaceHoldActive) { return; }
+    UIInputViewController *ivc = KBFindInputViewController(self);
+    if (!ivc) { self.backspaceHoldActive = NO; return; }
+    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
+    NSString *before = proxy.documentContextBeforeInput ?: @"";
+    if (before.length <= 0) { self.backspaceHoldActive = NO; return; }
+    [proxy deleteBackward]; // 每次仅删 1 个
+
+    // 轻量递归调度下一次；不使用 NSTimer，避免复杂状态管理
+    __weak typeof(self) weakSelf = self;
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.06 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        __strong typeof(weakSelf) selfStrong = weakSelf;
+        [selfStrong kb_backspaceStep];
+    });
+}
+
 #pragma mark - Lazy

 - (UIView *)row1 { if (!_row1) _row1 = [UIView new]; return _row1; }
--- a/CustomKeyboard/View/KBResponderUtils.h
+++ b/CustomKeyboard/View/KBResponderUtils.h
@@ -0,0 +1,28 @@
+//
+//  KBResponderUtils.h
+//  CustomKeyboard
+//
+//  统一封装：从任意 UIView/UIResponder 起，向响应链上查找 UIInputViewController。
+//  作为 header‑only 的工具，便于多处直接引入使用。
+//
+
+#import <UIKit/UIKit.h>
+
+#ifndef KBResponderUtils_h
+#define KBResponderUtils_h
+
+/// 从给定 responder 开始，沿响应链查找宿主 UIInputViewController。
+/// 用法：UIInputViewController *ivc = KBFindInputViewController(self);
+static inline UIInputViewController *KBFindInputViewController(UIResponder *start) {
+    UIResponder *responder = start;
+    while (responder) {
+        if ([responder isKindOfClass:[UIInputViewController class]]) {
+            return (UIInputViewController *)responder;
+        }
+        responder = responder.nextResponder;
+    }
+    return nil;
+}
+
+#endif /* KBResponderUtils_h */
+