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+//
+// $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 <http://code.google.com/p/sequel-pro/>
+
+#import "SPEditSheetTextView.h"
+#import "SPTextViewAdditions.h"
+
+
+@implementation SPEditSheetTextView
+
+- (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 *characters = [theEvent characters];
+ NSString *charactersIgnMod = [theEvent charactersIgnoringModifiers];
+ // unichar insertedCharacter = [characters characterAtIndex:0];
+ long curFlags = ([theEvent modifierFlags] & allFlags);
+
+ if(curFlags & NSCommandKeyMask) {
+ if([charactersIgnMod isEqualToString:@"+"]) // increase text size by 1; ⌘+ and numpad +
+ {
+ [self makeTextSizeLarger];
+ return;
+ }
+ if([charactersIgnMod isEqualToString:@"-"]) // decrease text size by 1; ⌘- and numpad -
+ {
+ [self makeTextSizeSmaller];
+ return;
+ }
+ }
+
+ [super keyDown: theEvent];
+
+}
+
+/*
+ * Insert the content of a dragged file path or if ⌘ is pressed
+ * while dragging insert the file path
+ */
+- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
+{
+ NSPasteboard *pboard = [sender draggingPasteboard];
+
+ 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];
+ unsigned int 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 %.1f MB of data?", @"message of panel asking for confirmation for inserting large text from dragging action"),
+ [filesize unsignedLongValue]/1048576.0]];
+ [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:(int)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.
+ */
+- (unsigned int)characterIndexOfPoint:(NSPoint)aPoint
+{
+ unsigned int glyphIndex;
+ NSLayoutManager *layoutManager = [self layoutManager];
+ float 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:@"application/octet-stream"] || [result hasPrefix:@"audio/mpeg"] || [result hasPrefix:@"text/plain"] || [[[aPath pathExtension] lowercaseString] isEqualToString:@"sql"])
+ {
+ // 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);
+}
+
+
+@end