ThePain/Swiftgram
1
0
Fork 0
mirror of https://github.com/Swiftgram/Telegram-iOS.git synced 2025-12-24 07:05:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add layer screenshort protection

Browse Source
This commit is contained in:
Isaac
2023-11-23 16:00:15 +04:00
parent c3df326987
commit 5dd156f2fc
7 changed files with 87 additions and 173 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
submodules/UIKitRuntimeUtils/Source/UIKitRuntimeUtils/UIKitUtils.h
View File

@@ -29,3 +29,6 @@ UIView * _Nullable getPortalViewSourceView(UIView * _Nonnull portalView);
NSObject * _Nullable makeBlurFilter();
NSObject * _Nullable makeLuminanceToAlphaFilter();
void setLayerDisableScreenshots(CALayer * _Nonnull layer, bool disableScreenshots);
void setLayerContentsMaskMode(CALayer * _Nonnull layer, bool maskMode);

45
submodules/UIKitRuntimeUtils/Source/UIKitRuntimeUtils/UIKitUtils.m
View File

@@ -231,3 +231,48 @@ NSObject * _Nullable makeBlurFilter() {
NSObject * _Nullable makeLuminanceToAlphaFilter() {
return [(id<GraphicsFilterProtocol>)NSClassFromString(@"CAFilter") filterWithName:@"luminanceToAlpha"];
}
void setLayerDisableScreenshots(CALayer * _Nonnull layer, bool disableScreenshots) {
static UITextField *textField = nil;
static UIView *secureView = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
textField = [[UITextField alloc] init];
for (UIView *subview in textField.subviews) {
if ([NSStringFromClass([subview class]) containsString:@"TextLayoutCanvasView"]) {
secureView = subview;
break;
}
}
});
if (secureView == nil) {
return;
}
CALayer *previousLayer = secureView.layer;
[secureView setValue:layer forKey:@"layer"];
if (disableScreenshots) {
textField.secureTextEntry = false;
textField.secureTextEntry = true;
} else {
textField.secureTextEntry = true;
textField.secureTextEntry = false;
}
[secureView setValue:previousLayer forKey:@"layer"];
}
void setLayerContentsMaskMode(CALayer * _Nonnull layer, bool maskMode) {
static NSString *key = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
key = [@"contents" stringByAppendingString:@"Swizzle"];
});
if (key == nil) {
return;
}
if (maskMode) {
[layer setValue:@"AAAA" forKey:key];
} else {
[layer setValue:@"RGBA" forKey:key];
}
}