diff options
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/dialogs/qnspanelproxy_mac.mm | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/gui/dialogs/qnspanelproxy_mac.mm b/src/gui/dialogs/qnspanelproxy_mac.mm index 97ad287..4f6ff90 100644 --- a/src/gui/dialogs/qnspanelproxy_mac.mm +++ b/src/gui/dialogs/qnspanelproxy_mac.mm @@ -144,14 +144,21 @@ void macStartIntercept(SEL originalSel, SEL fakeSel, Class baseClass, Class prox #endif { #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + // The following code replaces the _implementation_ for the selector we want to hack + // (originalSel) with the implementation found in proxyClass. Then it creates + // a new 'backup' method inside baseClass containing the old, original, + // implementation (fakeSel). You can let the proxy implementation of originalSel + // call fakeSel if needed (similar approach to calling a super class implementation). + // fakeSel must also be implemented in proxyClass, as the signature is used + // as template for the method one we add into baseClass. + // NB: You will typically never create any instances of proxyClass; we use it + // only for stealing its contents and put it into baseClass. Method originalMethod = class_getInstanceMethod(baseClass, originalSel); Method newMethod = class_getInstanceMethod(proxyClass, originalSel); Method fakeMethod = class_getInstanceMethod(proxyClass, fakeSel); - IMP originalCtorImp = method_setImplementation(originalMethod, - method_getImplementation(newMethod)); - class_addMethod(baseClass, fakeSel, originalCtorImp, - method_getTypeEncoding(fakeMethod)); + IMP originalImp = method_setImplementation(originalMethod, method_getImplementation(newMethod)); + class_addMethod(baseClass, fakeSel, originalImp, method_getTypeEncoding(fakeMethod)); #endif } } |