source: releases/ICeCoffEE/1.4.4b1/ICeCoffEE/ICeCoffEEWebKit.m@ 336

//
//  ICeCoffEEWebKit.m
//  ICeCoffEE APE
//
//  Created by Nicholas Riley on Sun Jan 19 2003.
//  Copyright (c) 2003 Nicholas Riley. All rights reserved.
//

#import "ICeCoffEEWebKit.h"
#import <unistd.h>

// WebCoreBridge, from WebCoreBridge.h (Safari 2)
// Web(Core)FrameBridge, from WebCoreFrameBridge.h (Safari 3)
@interface WebCoreBridge : NSObject

- (NSString *)selectedString; // public

- (void)selectNSRange:(NSRange)range; // private, Safari 2 & 3

@end

// from WebKit, private
@interface WebHTMLView : NSObject

- (WebCoreBridge *)_bridge; // private, in Safari 2 & 3; WebFrameBridge in Safari 3 (see above)

- (NSRange)selectedRange; // WebNSTextInputSupport, Safari 2 & 3

- (NSRect)selectionRect; // Safari 3 only
- (NSRect)_selectionRect; // Safari 2, supported in Safari 3 only for use with Mail
// (see <http://trac.webkit.org/projects/webkit/browser/trunk/WebKit/WebView/WebHTMLView.mm?rev=25024#L1430>)

- (void)drawSingleRect:(NSRect)rect;

- (void)deselectAll; // Safari 2 & 3

- (NSDictionary *)elementAtPoint:(NSPoint)point; // private, Safari 2 & 3

@end

@implementation ICeCoffEEWebKit

- (NSMenu *)menuForEvent:(NSEvent *)e;
{
    NSMenu *myMenu = [super menuForEvent: e];
    return ICCF_MenuForEvent(self, myMenu, e);
}

static NSEvent *downEvent = nil;
static NSString *selectedString = nil;
static NSRange selectedRange;

- (void)mouseDown:(NSEvent *)e;
{
    [downEvent release]; downEvent = nil;
    if (ICCF_enabled && ICCF_prefs.commandClickEnabled && ICCF_EventIsCommandMouseDown(e)) {
        WebCoreBridge *bridge = [(WebHTMLView *)self _bridge];
        if ([self respondsToSelector: @selector(selectedRange)]) {
            // save selection: it may be deselected on super mouseDown
            selectedRange = [(WebHTMLView *)self selectedRange];
        }
        [selectedString release]; selectedString = nil;
        selectedString = [[bridge selectedString] retain];
        downEvent = [e retain];
    }
    [super mouseDown: e];
}

- (void)mouseUp:(NSEvent *)e;
{
    [super mouseUp: e];
    if (downEvent != nil) {
        NSPoint downPt = [downEvent locationInWindow];
        NSPoint upPt = [e locationInWindow];
        if (abs(downPt.x - upPt.x) > kICHysteresisPixels && abs(downPt.y - upPt.y) > kICHysteresisPixels)
            return;

        NS_DURING
            NSPoint viewClickPt = [self convertPoint: downPt fromView: nil];
            NSDictionary *elementDict = [(WebHTMLView *)self elementAtPoint: viewClickPt];
            WebCoreBridge *bridge = [(WebHTMLView *)self _bridge];
            ICLog(@"elementDict: %@", elementDict);
            NSAssert([elementDict count] != 0, @"Internal error: Got empty element dictionary from WebHTMLView");
            if ([elementDict objectForKey: @"WebElementLinkURL"] != nil) {
                ICLog(@"got a link");
                NS_VOIDRETURN; // donÕt activate on links
            }
            if (selectedString == nil || [selectedString length] == 0) {
                ICLog(@"no selected string");
                NS_VOIDRETURN;
            }
            ICCF_StartIC();
            BOOL canSetSelection = [bridge respondsToSelector: @selector(selectNSRange:)];
            if (canSetSelection) {
                // may have become deselected in mouseDown
                [bridge selectNSRange: selectedRange];
            }
            if (ICCF_LaunchURL(selectedString, ICCF_KeyboardAction(downEvent)) && ICCF_prefs.textBlinkEnabled && canSetSelection) {
                int i;
                NSRect selectionRect;
                if ([self respondsToSelector: @selector(selectionRect)])
                    selectionRect = [(WebHTMLView *)self selectionRect];
                else if ([self respondsToSelector: @selector(_selectionRect)])
                    selectionRect = [(WebHTMLView *)self _selectionRect];
                ICLog(@"selectedRange %@ selectionRect %@ textBlinkCount %d", NSStringFromRange(selectedRange), NSStringFromRect(selectionRect), ICCF_prefs.textBlinkCount);
                for (i = 0 ; i < ICCF_prefs.textBlinkCount ; i++) {
                    [(WebHTMLView *)self deselectAll];
                    [self setNeedsDisplayInRect: selectionRect];
                    [self display];
                    usleep(kICBlinkDelayUsecs);
                    [bridge selectNSRange: selectedRange];
                    [self setNeedsDisplayInRect: selectionRect];
                    [self display];
                    usleep(kICBlinkDelayUsecs);
                }
            }
        NS_HANDLER
            ICCF_HandleException(localException);
        NS_ENDHANDLER

        [downEvent release]; downEvent = nil;
        ICCF_StopIC();
    }        
}

@end