Add support for Ctrl+Mouse Wheel to do text zooming on Win32.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@23561 268f45cc-cd09-0410-ab3c-d52691b4dbfc

WebKit/win/ChangeLog

+2007-06-17  Dave Hyatt  <hyatt@apple.com>
+
+        Add support for Ctrl+Mouse Wheel to increase/decrease text zoom (Win32 only).
+       
+        Reviewed by aroben
+
+        * WebView.cpp:
+        (WebView::mouseWheel):
+
 2007-06-09  Steve Falkenburg  <sfalken@apple.com>
 
         Reviewed by Adam.
@@ -2126,8 +2135,6 @@
 
 2007-03-14  Steve Falkenburg  <sfalken@apple.com>
 
-        Reviewed by NOBODY (OOPS!).
-
         <rdar://problem/5050470> Reproducible crash doing find on page at cnn.com
         
         Add frame->document() null checks in cases where frame could be a
@@ -5560,9 +5567,7 @@
         * WebLocalizableStrings.h: Added.
 
 2006-12-04  Steve Falkenburg  <sfalken@apple.com>
-
-        Reviewed by NOBODY (OOPS!).
-        
+       
         Checkpoint of <rdar://4601521>
         Use CoreFoundation bundles w/ Localizable.strings for localization.
 
@@ -5750,9 +5755,7 @@
         (WebFrame::initWithWebFrameView):
 
 2006-11-28  Steve Falkenburg  <sfalken@apple.com>
-
-        Reviewed by NOBODY (OOPS!).
-        
+       
         Make COM registration fall back to per-user for Vista LUA compatibility.
 
         Only affects our development builds since the installer will set these
@@ -8225,8 +8228,6 @@
 
 2006-09-12  Steve Falkenburg  <sfalken@apple.com>
 
-        Reviewed by NOBODY (OOPS!).
-
         Get Boomer ready for B&I submission.
       
         Projects can now all build independent of one another

WebKit/win/WebView.cpp

@@ -841,6 +841,18 @@ bool WebView::handleMouseEvent(UINT message, WPARAM wParam, LPARAM lParam)
 
 bool WebView::mouseWheel(WPARAM wParam, LPARAM lParam)
 {
+    // Ctrl+Mouse wheel doesn't ever go into WebCore.  It is used to
+    // zoom instead (Mac zooms the whole Desktop, but Windows browsers trigger their
+    // own local zoom modes for Ctrl+wheel).
+    if (wParam & MK_CONTROL) {
+        short delta = short(HIWORD(wParam));
+        if (delta < 0)
+            makeTextLarger(0);
+        else
+            makeTextSmaller(0);
+        return true;
+    }
+
     PlatformWheelEvent wheelEvent(m_viewWindow, wParam, lParam);
     Frame* coreFrame = core(m_mainFrame);
     if (!coreFrame)