//
// $Id: SPTextViewAdditions.m 866 2009-06-15 16:05:54Z bibiko $
//
// SPEditSheetTextView.m
// sequel-pro
//
// Created by Hans-Jörg Bibiko on June 15, 2009
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// More info at
#import "SPEditSheetTextView.h"
#import "SPTextViewAdditions.h"
#import "SPFieldEditorController.h"
@implementation SPEditSheetTextView
- (IBAction)undo:(id)sender
{
textWasChanged = NO;
[[self undoManager] undo];
// Due to the undoManager implementation it could happen that
// an action will be recoreded which actually didn't change the
// text buffer. That's why repeat undo.
if(!textWasChanged) [[self undoManager] undo];
if(!textWasChanged) [[self undoManager] undo];
}
- (IBAction)redo:(id)sender
{
textWasChanged = NO;
[[self undoManager] redo];
// Due to the undoManager implementation it could happen that
// an action will be recoreded which actually didn't change the
// text buffer. That's why repeat redo.
if(!textWasChanged) [[self undoManager] redo];
if(!textWasChanged) [[self undoManager] redo];
}
- (IBAction)paste:(id)sender
{
// Try to create an undo group
[[self delegate] setWasCutPaste];
[super paste:sender];
}
- (IBAction)cut:(id)sender
{
// Try to create an undo group
[[self delegate] setWasCutPaste];
[super cut:sender];
}
/**
* Validate undo and redo menu items
*/
- (BOOL)validateMenuItem:(NSMenuItem *)menuItem
{
if ([menuItem action] == @selector(undo:)) {
return ([[self undoManager] canUndo]);
}
if ([menuItem action] == @selector(redo:)) {
return ([[self undoManager] canRedo]);
}
return YES;
}
- (void)textDidChange:(NSNotification *)aNotification
{
textWasChanged = YES;
}
- (void)keyDown:(NSEvent *)theEvent
{
long allFlags = (NSShiftKeyMask|NSControlKeyMask|NSAlternateKeyMask|NSCommandKeyMask);
// Check if user pressed ⌥ to allow composing of accented characters.
// e.g. for US keyboard "⌥u a" to insert ä
// or for non-US keyboards to allow to enter dead keys
// e.g. for German keyboard ` is a dead key, press space to enter `
if (([theEvent modifierFlags] & allFlags) == NSAlternateKeyMask || [[theEvent characters] length] == 0)
{
[super keyDown: theEvent];
return;
}
NSString *charactersIgnMod = [theEvent charactersIgnoringModifiers];
long curFlags = ([theEvent modifierFlags] & allFlags);
if(curFlags & NSCommandKeyMask) {
if([charactersIgnMod isEqualToString:@"+"] || [charactersIgnMod isEqualToString:@"="]) // increase text size by 1; ⌘+ and numpad +
{
[self makeTextSizeLarger];
[self saveChangedFontInUserDefaults];
return;
}
if([charactersIgnMod isEqualToString:@"-"]) // decrease text size by 1; ⌘- and numpad -
{
[self makeTextSizeSmaller];
[self saveChangedFontInUserDefaults];
return;
}
}
// Allow undo grouping if user typed a ' ' (for word level undo)
// or a RETURN but not for each char due to writing speed
if([charactersIgnMod isEqualToString:@" "]
|| [theEvent keyCode] == 36
|| [theEvent modifierFlags] & (NSCommandKeyMask|NSControlKeyMask|NSAlternateKeyMask)
) {
[[self delegate] setDoGroupDueToChars];
}
[super keyDown: theEvent];
}
/*
* Insert the content of a dragged file path or if ⌘ is pressed
* while dragging insert the file path
*/
- (BOOL)performDragOperation:(id )sender
{
NSPasteboard *pboard = [sender draggingPasteboard];
if ( [[pboard types] containsObject:NSFilenamesPboardType] && [[pboard types] containsObject:@"CorePasteboardFlavorType 0x54455854"])
return [super performDragOperation:sender];
if ( [[pboard types] containsObject:NSFilenamesPboardType] ) {
NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
// Only one file path is allowed
if([files count] > 1) {
NSLog(@"%@", NSLocalizedString(@"Only one dragged item allowed.",@"Only one dragged item allowed."));
return YES;
}
NSString *filepath = [[pboard propertyListForType:NSFilenamesPboardType] objectAtIndex:0];
// Set the new insertion point
NSPoint draggingLocation = [sender draggingLocation];
draggingLocation = [self convertPoint:draggingLocation fromView:nil];
NSUInteger characterIndex = [self characterIndexOfPoint:draggingLocation];
[self setSelectedRange:NSMakeRange(characterIndex,0)];
// Check if user pressed ⌘ while dragging for inserting only the file path
if([sender draggingSourceOperationMask] == 4)
{
[self insertText:filepath];
return YES;
}
// Check size and NSFileType
NSDictionary *attr = [[NSFileManager defaultManager] fileAttributesAtPath:filepath traverseLink:YES];
if(attr)
{
NSNumber *filesize = [attr objectForKey:NSFileSize];
NSString *filetype = [attr objectForKey:NSFileType];
if(filetype == NSFileTypeRegular && filesize)
{
// Ask for confirmation if file content is larger than 1MB
if([filesize unsignedLongValue] > 1000000)
{
NSAlert *alert = [[NSAlert alloc] init];
[alert addButtonWithTitle:NSLocalizedString(@"OK", @"OK button")];
[alert addButtonWithTitle:NSLocalizedString(@"Cancel", @"cancel button")];
[alert setInformativeText:[NSString stringWithFormat:NSLocalizedString(@"Do you really want to proceed with %@ of data?", @"message of panel asking for confirmation for inserting large text from dragging action"),
[NSString stringForByteSize:[filesize longLongValue]]]];
[alert setHelpAnchor:filepath];
[alert setMessageText:NSLocalizedString(@"Warning", @"warning")];
[alert setAlertStyle:NSWarningAlertStyle];
[alert beginSheetModalForWindow:[self window]
modalDelegate:self
didEndSelector:@selector(dragAlertSheetDidEnd:returnCode:contextInfo:)
contextInfo:nil];
[alert release];
} else
[self insertFileContentOfFile:filepath];
}
}
return YES;
}
return [super performDragOperation:sender];
}
/*
* Confirmation sheetDidEnd method
*/
- (void)dragAlertSheetDidEnd:(NSAlert *)sheet returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
{
[[sheet window] orderOut:nil];
if ( returnCode == NSAlertFirstButtonReturn )
[self insertFileContentOfFile:[sheet helpAnchor]];
}
/*
* Convert a NSPoint, usually the mouse location, to
* a character index of the text view.
*/
- (NSUInteger)characterIndexOfPoint:(NSPoint)aPoint
{
NSUInteger glyphIndex;
NSLayoutManager *layoutManager = [self layoutManager];
CGFloat fraction;
NSRange range;
range = [layoutManager glyphRangeForTextContainer:[self textContainer]];
glyphIndex = [layoutManager glyphIndexForPoint:aPoint
inTextContainer:[self textContainer]
fractionOfDistanceThroughGlyph:&fraction];
if( fraction > 0.5 ) glyphIndex++;
if( glyphIndex == NSMaxRange(range) )
return [[self textStorage] length];
else
return [layoutManager characterIndexForGlyphAtIndex:glyphIndex];
}
/*
* Insert content of a plain text file for a given path.
* In addition it tries to figure out the file's text encoding heuristically.
*/
- (void)insertFileContentOfFile:(NSString *)aPath
{
NSError *err = nil;
NSStringEncoding enc;
NSString *content = nil;
// Make usage of the UNIX command "file" to get an info
// about file type and encoding.
NSTask *task=[[NSTask alloc] init];
NSPipe *pipe=[[NSPipe alloc] init];
NSFileHandle *handle;
NSString *result;
[task setLaunchPath:@"/usr/bin/file"];
[task setArguments:[NSArray arrayWithObjects:aPath, @"-Ib", nil]];
[task setStandardOutput:pipe];
handle=[pipe fileHandleForReading];
[task launch];
result=[[NSString alloc] initWithData:[handle readDataToEndOfFile]
encoding:NSASCIIStringEncoding];
[pipe release];
[task release];
// UTF16/32 files are detected as application/octet-stream resp. audio/mpeg
if( [result hasPrefix:@"text/plain"]
|| [[[aPath pathExtension] lowercaseString] isEqualToString:SPFileExtensionSQL]
|| [[[aPath pathExtension] lowercaseString] isEqualToString:@"txt"]
|| [result hasPrefix:@"audio/mpeg"]
|| [result hasPrefix:@"application/octet-stream"]
)
{
// if UTF16/32 cocoa will try to find the correct encoding
if([result hasPrefix:@"application/octet-stream"] || [result hasPrefix:@"audio/mpeg"] || [result rangeOfString:@"utf-16"].length)
enc = 0;
else if([result rangeOfString:@"utf-8"].length)
enc = NSUTF8StringEncoding;
else if([result rangeOfString:@"iso-8859-1"].length)
enc = NSISOLatin1StringEncoding;
else if([result rangeOfString:@"us-ascii"].length)
enc = NSASCIIStringEncoding;
else
enc = 0;
if(enc == 0) // cocoa tries to detect the encoding
content = [NSString stringWithContentsOfFile:aPath usedEncoding:&enc error:&err];
else
content = [NSString stringWithContentsOfFile:aPath encoding:enc error:&err];
if(content)
{
[self insertText:content];
[result release];
[self insertText:@""]; // Invoke keyword uppercasing
return;
}
// If UNIX "file" failed try cocoa's encoding detection
content = [NSString stringWithContentsOfFile:aPath encoding:enc error:&err];
if(content)
{
[self insertText:content];
[result release];
[self insertText:@""]; // Invoke keyword uppercasing
return;
}
}
[result release];
NSLog(@"%@ ‘%@’.", NSLocalizedString(@"Couldn't read the file content of", @"Couldn't read the file content of"), aPath);
}
// Store the font in the prefs for selected delegates only
- (void)saveChangedFontInUserDefaults
{
if([[[[self delegate] class] description] isEqualToString:@"SPFieldEditorController"])
[[NSUserDefaults standardUserDefaults] setObject:[NSArchiver archivedDataWithRootObject:[self font]] forKey:@"FieldEditorSheetFont"];
}
// Action receiver for a font change in the font panel
- (void)changeFont:(id)sender
{
NSFont *nf = [[NSFontPanel sharedFontPanel] panelConvertFont:[self font]];
[self setFont:nf];
[self saveChangedFontInUserDefaults];
}
@end