<rdar://problem/5522011> The content of the password field of Safari is displayed by reconversion.

Reviewed by Darin.

Some input methods (notably Kotoeri) can incorrectly provide
access to the raw text of a password field.  To work around
this we forcefully override the inputContext whenever a password
field is active.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@27726 268f45cc-cd09-0410-ab3c-d52691b4dbfc

WebKit/mac/ChangeLog

+2007-11-12  Oliver Hunt  <oliver@apple.com>
+
+        Reviewed by Darin.
+
+        <rdar://problem/5522011> The content of the password field of 
+        Safari is displayed by reconversion.
+
+        Some input methods (notably Kotoeri) can incorrectly provide 
+        access to the raw text of a password field.  To work around 
+        this we forcefully override the inputContext whenever a password
+        field is active.
+
+        * WebView/WebHTMLView.mm:
+        (-[WebHTMLView inputContext]):
+
 2007-11-12  John Sullivan  <sullivan@apple.com>
 
         Reviewed by Tim Hatcher

WebKit/mac/WebView/WebHTMLView.mm

@@ -323,6 +323,11 @@ static CachedResourceClient* promisedDataClient()
 - (void)_setPrinting:(BOOL)printing minimumPageWidth:(float)minPageWidth maximumPageWidth:(float)maxPageWidth adjustViewSize:(BOOL)adjustViewSize;
 @end
 
+@class NSInputContext;
+@interface NSResponder (IMSecretsIKnowAbout)
+- (NSInputContext *)inputContext;
+@end
+
 @interface WebHTMLView (WebNSTextInputSupport) <NSTextInput>
 - (void)_updateSelectionForInputManager;
 @end
@@ -5327,6 +5332,18 @@ static BOOL isTextInput(Frame* coreFrame)
     return coreFrame && !coreFrame->selectionController()->isNone() && coreFrame->selectionController()->isContentEditable();
 }
 
+// Work around for <rdar://problem/5522011>
+// Some input methods do not properly behave when TSM is in secure input mode
+// which can allow the password to be made visible.  We prevent this by overriding 
+// the active context if a password field is focused.
+- (NSInputContext *)inputContext 
+{
+    Frame* coreFrame = core([self _frame]);
+    if (coreFrame && coreFrame->selectionController()->isInPasswordField())
+        return nil;
+    return [super inputContext];
+}
+
 - (NSAttributedString *)textStorage
 {
     if (!isTextInput(core([self _frame]))) {