zw/keyboard
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

修改 我已经退出界面，然后从新进入界面弹起键盘，为什么撤销删除按钮显示？

Browse Source
This commit is contained in:
CodeST
2025-12-26 13:55:07 +08:00
parent 203f104ece
commit ae37730da6
2 changed files with 98 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

116
CustomKeyboard/Utils/KBBackspaceLongPressHandler.m
View File

@@ -11,11 +11,11 @@
static const NSTimeInterval kKBBackspaceLongPressMinDuration = 0.35;
static const NSTimeInterval kKBBackspaceRepeatInterval = 0.06;
static const NSTimeInterval kKBBackspaceChunkStartDelay = 1.0;
static const NSTimeInterval kKBBackspaceChunkStartDelay = 0.6;
static const NSTimeInterval kKBBackspaceChunkRepeatInterval = 0.1;
static const NSTimeInterval kKBBackspaceChunkFastDelay = 1.4;
static const NSInteger kKBBackspaceChunkSize = 6;
static const NSInteger kKBBackspaceChunkSizeFast = 12;
static const NSTimeInterval kKBBackspaceChunkFastDelay = 1.2;
static const NSInteger kKBBackspaceChunkSize = 8;
static const NSInteger kKBBackspaceChunkSizeFast = 16;
static const CGFloat kKBBackspaceClearLabelCornerRadius = 8.0;
static const CGFloat kKBBackspaceClearLabelHeight = 26.0;
static const CGFloat kKBBackspaceClearLabelPaddingX = 10.0;
@@ -210,34 +210,77 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
asciiWordSet = [NSCharacterSet characterSetWithCharactersInString:
@"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_"];
punctuationSet = [NSCharacterSet punctuationCharacterSet];
NSMutableCharacterSet *punct = [[NSCharacterSet punctuationCharacterSet] mutableCopy];
// 补齐常见中文/全角标点（避免 chunk 总是只删 1 个符号）
[punct addCharactersInString:@"，。！？；：、（）【】《》“”‘’·…—"];
punctuationSet = [punct copy];
});
__block NSInteger deleteCount = 0;
__block KBBackspaceChunkClass chunkClass = KBBackspaceChunkClassUnknown;
typedef NS_ENUM(NSInteger, KBBackspaceChunkPhase) {
KBBackspaceChunkPhaseWhitespace = 0,
KBBackspaceChunkPhasePunctuation,
KBBackspaceChunkPhaseCore
};
__block KBBackspaceChunkPhase phase = KBBackspaceChunkPhaseWhitespace;
__block KBBackspaceChunkClass coreClass = KBBackspaceChunkClassUnknown;
[context enumerateSubstringsInRange:NSMakeRange(0, context.length)
options:NSStringEnumerationByComposedCharacterSequences | NSStringEnumerationReverse
usingBlock:^(NSString *substring, __unused NSRange substringRange, __unused NSRange enclosingRange, BOOL *stop) {
if (substring.length == 0) { return; }
KBBackspaceChunkClass currentClass = KBBackspaceChunkClassOther;
if ([substring rangeOfCharacterFromSet:whitespaceSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassWhitespace;
} else if ([substring rangeOfCharacterFromSet:asciiWordSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassASCIIWord;
} else if ([substring rangeOfCharacterFromSet:punctuationSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassPunctuation;
}
if (chunkClass == KBBackspaceChunkClassUnknown) {
chunkClass = currentClass;
} else if (chunkClass != currentClass) {
if (deleteCount >= maxCount) {
*stop = YES;
return;
}
deleteCount += 1;
KBBackspaceChunkClass currentClass = KBBackspaceChunkClassOther;
if ([substring rangeOfCharacterFromSet:whitespaceSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassWhitespace;
} else if ([substring rangeOfCharacterFromSet:punctuationSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassPunctuation;
} else if ([substring rangeOfCharacterFromSet:asciiWordSet].location != NSNotFound) {
currentClass = KBBackspaceChunkClassASCIIWord;
}
BOOL consumed = NO;
while (!consumed) {
if (phase == KBBackspaceChunkPhaseWhitespace) {
if (currentClass == KBBackspaceChunkClassWhitespace) {
deleteCount += 1;
consumed = YES;
} else {
phase = KBBackspaceChunkPhasePunctuation;
}
continue;
}
if (phase == KBBackspaceChunkPhasePunctuation) {
if (currentClass == KBBackspaceChunkClassPunctuation) {
deleteCount += 1;
consumed = YES;
} else {
phase = KBBackspaceChunkPhaseCore;
}
continue;
}
// phase == Core：连续删同一类（ASCII 单词 / 其它），让效果更像微信“几个字一组”
if (coreClass == KBBackspaceChunkClassUnknown) {
coreClass = currentClass;
}
if (currentClass != coreClass) {
*stop = YES;
consumed = YES;
continue;
}
deleteCount += 1;
consumed = YES;
}
if (deleteCount >= maxCount) {
*stop = YES;
return;
}
}];
@@ -480,12 +523,23 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
if (!ivc) { return; }
id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
NSInteger nextEmptyRounds = emptyRounds;
static NSCharacterSet *sentenceBoundarySet = nil;
static NSCharacterSet *whitespaceSet = nil;
static NSCharacterSet *stopBoundarySet = nil;
static NSCharacterSet *trailingBoundarySet = nil;
static NSCharacterSet *trailingWhitespaceSet = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sentenceBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?。！？"];
whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
// stopBoundary: 遇到这些符号就停（不删除它）
// - 句末符号：. ! ? 。！？
// - 省略号：…（中文里“……”常用作句/段落的停顿）
// - 换行：\n \r（段落边界，避免一次“清空”跨段把全文删完）
stopBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?。！？…\n\r\u2028\u2029"];
// trailingBoundary: 允许作为“尾部句末符号”先删掉，再继续删上一句（更接近微信体验）
// 注意：不要把换行/省略号放进来，否则可能跨段/跨停顿继续删。
trailingBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?。！？"];
// trailingWhitespace: 只跳过空格/Tab（不包含换行，换行由 stopBoundarySet 处理）
trailingWhitespaceSet = [NSCharacterSet whitespaceCharacterSet];
});
KBClearPhase phase = self.backspaceClearPhase;
@@ -496,10 +550,9 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
NSString *before = proxy.documentContextBeforeInput ?: @"";
if (before.length == 0) {
nextEmptyRounds += 1;
// 即使 context 为空，也尝试删一次（某些宿主延迟更新）
[[KBBackspaceUndoManager shared] captureAndDeleteBackwardFromProxy:proxy count:1];
[[KBInputBufferManager shared] applyClearDeleteCount:1];
deletedThisTick += 1;
// 宿主（微信/QQ 等）可能在长文本场景下返回空 context，即使还有很多内容。
// 为了避免一次“清空”误删全文：一旦拿不到 before，就立刻停止本次清空。
shouldStop = YES;
break;
}
nextEmptyRounds = 0;
@@ -520,8 +573,9 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
}];
if (lastChar.length == 0) { break; }
BOOL isWhitespace = ([lastChar rangeOfCharacterFromSet:whitespaceSet].location != NSNotFound);
BOOL isBoundary = ([lastChar rangeOfCharacterFromSet:sentenceBoundarySet].location != NSNotFound);
BOOL isWhitespace = ([lastChar rangeOfCharacterFromSet:trailingWhitespaceSet].location != NSNotFound);
BOOL isStopBoundary = ([lastChar rangeOfCharacterFromSet:stopBoundarySet].location != NSNotFound);
BOOL isTrailingBoundary = ([lastChar rangeOfCharacterFromSet:trailingBoundarySet].location != NSNotFound);
if (phase == KBClearPhaseSkipWhitespace) {
if (isWhitespace) {
@@ -534,7 +588,7 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
}
if (phase == KBClearPhaseSkipTrailingBoundary) {
if (isBoundary) {
if (isTrailingBoundary) {
[[KBBackspaceUndoManager shared] captureAndDeleteBackwardFromProxy:proxy count:1];
[[KBInputBufferManager shared] applyClearDeleteCount:1];
deletedThisTick += 1;
@@ -544,7 +598,7 @@ typedef NS_ENUM(NSInteger, KBClearPhase) {
}
// phase == DeleteUntilBoundary
if (isBoundary) {
if (isStopBoundary) {
shouldStop = YES; // 保留该句末符号
break;
}