CoverStoryCodeViewTableView.m

//
//  CoverStoryCodeViewTableView.m
//  CoverStory
//
//  Copyright 2008 Google Inc.
//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
//  use this file except in compliance with the License.  You may obtain a copy
//  of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
//  License for the specific language governing permissions and limitations under
//  the License.
//

#import "CoverStoryCodeViewTableView.h"
#import "CoverStoryScroller.h"
#import "CoverStoryPreferenceKeys.h"
#import "GTMDefines.h"
#import "NSUserDefaultsController+KeyValues.h"
#import "CoverStoryDocument.h"

static NSString *const kPrefsToWatch[] = {
  kCoverStoryMissedLineColorKey,
  kCoverStoryUnexecutableLineColorKey,
  kCoverStoryNonFeasibleLineColorKey,
  kCoverStoryExecutedLineColorKey
};

@implementation CoverStoryCodeViewTableView

- (void)dealloc {
  NSUserDefaultsController *defaults = [NSUserDefaultsController sharedUserDefaultsController];
  for (size_t i = 0; i < sizeof(kPrefsToWatch) / sizeof(kPrefsToWatch[0]); ++i) {
    [defaults removeObserver:self
                  forKeyPath:[NSUserDefaultsController cs_valuesKey:kPrefsToWatch[i]]];
  }
  [super dealloc];
}

- (void)awakeFromNib {
  [self setIntercellSpacing:NSMakeSize(0.0f, 0.0f)];
  CoverStoryScroller *scroller = [[[CoverStoryScroller alloc] init] autorelease];
  NSScrollView *scrollView = [self enclosingScrollView];
  [scrollView setVerticalScroller:scroller];
  NSUserDefaultsController *defaults = [NSUserDefaultsController sharedUserDefaultsController];
  for (size_t i = 0; i < sizeof(kPrefsToWatch) / sizeof(kPrefsToWatch[0]); ++i) {
    [defaults addObserver:self
               forKeyPath:[NSUserDefaultsController cs_valuesKey:kPrefsToWatch[i]]
                  options:NSKeyValueObservingOptionNew
                  context:nil];
  }
}

- (void)observeValueForKeyPath:(NSString *)keyPath
                      ofObject:(id)object
                        change:(NSDictionary *)change
                       context:(void *)context {
  BOOL handled = NO;
  NSString *const kColorsToWatch[] = {
    kCoverStoryMissedLineColorKey,
    kCoverStoryUnexecutableLineColorKey,
    kCoverStoryNonFeasibleLineColorKey,
    kCoverStoryExecutedLineColorKey
  };
  for (size_t i = 0; i < sizeof(kPrefsToWatch) / sizeof(kPrefsToWatch[0]); ++i) {
    if ([keyPath isEqualToString:[NSUserDefaultsController cs_valuesKey:kColorsToWatch[i]]]) {
      [self reloadData];
      handled = YES;
    }
  }
  if (!handled) {
    _GTMDevLog(@"Unexpected observance of %@ of %@ (%@)", keyPath, object, change);
  }
}

- (void)setCoverageData:(NSArray*)coverageData {
  NSScrollView *scrollView = [self enclosingScrollView];
  CoverStoryScroller *scroller = (CoverStoryScroller*)[scrollView verticalScroller];
  [scroller setEnabled:coverageData ? YES : NO];
  [scroller setCoverageData:coverageData];
}

- (void)keyDown:(NSEvent *)event {
  NSString *chars = [event characters];
  if ([chars length]) {
    unichar keyCode = [chars characterAtIndex:0];
    switch (keyCode) {
      case '\r':
      case '\n':
        [NSApp sendAction:@selector(openSelectedSource:)
                       to:nil
                     from:self];
        break;

      case NSDownArrowFunctionKey:
        [NSApp sendAction:@selector(moveDownAndModifySelection:)
                       to:nil
                     from:self];
        break;

      case NSUpArrowFunctionKey:
        [NSApp sendAction:@selector(moveUpAndModifySelection:)
                       to:nil
                     from:self];
        break;

      default:
        [super keyDown:event];
        break;
    }
  }
}

@end