Add MMUseMouseTime, Revise #77

`MMUseMouseTime` allows to override the time threshold for detecting multiple
mouse down events using Vim `mousetime` option.

    $ defaults write org.vim.MacVim MMUseMouseTime -bool TRUE

Author: splhack

src/MacVim/MMBackend.m

@@ -1844,6 +1844,7 @@ - (void)insertVimStateMessage
         [NSNumber numberWithBool:mmta], @"p_mmta",
         [NSNumber numberWithInt:numTabs], @"numTabs",
         [NSNumber numberWithInt:fuoptions_flags], @"fullScreenOptions",
+        [NSNumber numberWithLong:p_mouset], @"p_mouset",
         nil];
 
     // Put the state before all other messages.
@@ -1932,12 +1933,12 @@ - (void)handleInputEvent:(int)msgid data:(NSData *)data
         int col = *((int*)bytes);  bytes += sizeof(int);
         int button = *((int*)bytes);  bytes += sizeof(int);
         int flags = *((int*)bytes);  bytes += sizeof(int);
-        int count = *((int*)bytes);  bytes += sizeof(int);
+        int repeat = *((int*)bytes);  bytes += sizeof(int);
 
         button = eventButtonNumberToVimMouseButton(button);
         if (button >= 0) {
             flags = eventModifierFlagsToVimMouseModMask(flags);
-            gui_send_mouse_event(button, col, row, count>1, flags);
+            gui_send_mouse_event(button, col, row, repeat, flags);
         }
     } else if (MouseUpMsgID == msgid) {
         if (!data) return;

src/MacVim/MMTextViewHelper.h

@@ -35,6 +35,8 @@
     BOOL                interpretKeyEventsSwallowedKey;
     NSEvent             *currentEvent;
     NSMutableDictionary *signImages;
+    BOOL                useMouseTime;
+    NSDate              *mouseDownTime;
 
     // Input Manager
     NSRange             imRange;

src/MacVim/MMTextViewHelper.m

@@ -80,6 +80,11 @@ - (id)init
 
     signImages = [[NSMutableDictionary alloc] init];
 
+    useMouseTime =
+        [[NSUserDefaults standardUserDefaults] boolForKey:MMUseMouseTimeKey];
+    if (useMouseTime)
+        mouseDownTime = [[NSDate date] retain];
+
     return self;
 }
 
@@ -91,6 +96,7 @@ - (void)dealloc
     [markedText release];  markedText = nil;
     [markedTextAttributes release];  markedTextAttributes = nil;
     [signImages release];  signImages = nil;
+    [mouseDownTime release];  mouseDownTime = nil;
 
 #if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
     if (asciiImSource) {
@@ -380,7 +386,21 @@ - (void)mouseDown:(NSEvent *)event
 
     int button = [event buttonNumber];
     int flags = [event modifierFlags];
-    int count = [event clickCount];
+    int repeat = 0;
+
+    if (useMouseTime) {
+        // Use Vim mouseTime option to handle multiple mouse down events
+        NSDate *now = [[NSDate date] retain];
+        id mouset = [[[self vimController] vimState] objectForKey:@"p_mouset"];
+        NSTimeInterval interval =
+            [now timeIntervalSinceDate:mouseDownTime] * 1000.0;
+        if (interval < (NSTimeInterval)[mouset longValue])
+            repeat = 1;
+        mouseDownTime = now;
+    } else {
+        repeat = [event clickCount] > 1;
+    }
+
     NSMutableData *data = [NSMutableData data];
 
     // If desired, intepret Ctrl-Click as a right mouse click.
@@ -398,7 +418,7 @@ - (void)mouseDown:(NSEvent *)event
     [data appendBytes:&col length:sizeof(int)];
     [data appendBytes:&button length:sizeof(int)];
     [data appendBytes:&flags length:sizeof(int)];
-    [data appendBytes:&count length:sizeof(int)];
+    [data appendBytes:&repeat length:sizeof(int)];
 
     [[self vimController] sendMessage:MouseDownMsgID data:data];
 }

src/MacVim/Miscellaneous.h

@@ -55,6 +55,7 @@ extern NSString *MMUseInlineImKey;
 #endif // INCLUDE_OLD_IM_CODE
 extern NSString *MMSuppressTerminationAlertKey;
 extern NSString *MMNativeFullScreenKey;
+extern NSString *MMUseMouseTimeKey;
 
 
 // Enum for MMUntitledWindowKey

src/MacVim/Miscellaneous.m

@@ -47,6 +47,7 @@
 #endif // INCLUDE_OLD_IM_CODE
 NSString *MMSuppressTerminationAlertKey = @"MMSuppressTerminationAlert";
 NSString *MMNativeFullScreenKey         = @"MMNativeFullScreen";
+NSString *MMUseMouseTimeKey             = @"MMUseMouseTime";