source: trunk/ICeCoffEE/ICeCoffEE/ICeCoffEE.m@ 79

Last change on this file since 79 was 79, checked in by Nicholas Riley, 20 years ago

ICeCoffEE 1.3b3

File size: 18.8 KB
Line 
1// ICeCoffEE - Internet Config Cocoa Editor Extension
2// Nicholas Riley <mailto:icecoffee@sabi.net>
3
4/* To do/think about:
5
6- Carbon contextual menu plugin which presents Services (yah!)
7 for both files and text
8- if it's not a URL, try using TextExtras' open list
9- TXNClick - MLTE has its own support in Jaguar and later, but it's lousy
10
11Done:
12
13- TEClick - TextEdit
14- flash on success (like BBEdit)
15- display dialog on failure (decode OSStatus)
16- adjust URL blinking
17- app exclusion list - make a pref pane (see AquaShade config)
18- _LSCopyApplicationURLsForItemURL - list apps
19- Menu on command-option-click: add bookmark, open with other helper, pass to configurable service, ...?
20
21*/
22
23#import "ICeCoffEE.h"
24#import <Carbon/Carbon.h>
25#include <unistd.h>
26#import "ICeCoffEESuper.h"
27#import "ICeCoffEEActionMenu.h"
28
29iccfPrefRec ICCF_prefs;
30
31NSString *ICCF_ErrString(OSStatus err, NSString *context) {
32 if (err == noErr || err == userCanceledErr) return nil;
33
34 NSString *errNum = [NSString stringWithFormat: @"%ld", err];
35 NSString *errDesc = ICCF_LocalizedString(errNum);
36
37 if (errDesc == NULL || errDesc == errNum)
38 errDesc = [NSString stringWithFormat: ICCF_LocalizedString(@"An unknown error occurred in %@"), context];
39
40 return [NSString stringWithFormat: @"%@ (%d)", errDesc, (int)err];
41}
42
43CFStringRef ICCF_CopyErrString(OSStatus err, CFStringRef context) {
44 if (err == noErr || err == userCanceledErr) return NULL;
45
46 CFStringRef errNum = CFStringCreateWithFormat(NULL, NULL, CFSTR("%ld"), err);
47 CFStringRef errDesc = ICCF_CopyLocalizedString(errNum);
48
49 if (errDesc == NULL || errDesc == errNum) {
50 CFStringRef errDescFormat = ICCF_CopyLocalizedString(CFSTR("An unknown error occurred in %@"));
51 if (errDesc != NULL) CFRelease(errDesc);
52 errDesc = CFStringCreateWithFormat(NULL, NULL, errDescFormat, context);
53 }
54
55 CFStringRef errStr = CFStringCreateWithFormat(NULL, NULL, CFSTR("%@ (%d)"), errDesc, (int)err);
56
57 if (errNum != NULL) CFRelease(errNum);
58 if (errDesc != NULL) CFRelease(errDesc);
59 return errStr;
60}
61
62BOOL ICCF_EventIsCommandMouseDown(NSEvent *e) {
63 unsigned int modifierFlags = [e modifierFlags];
64 return ([e type] == NSLeftMouseDown &&
65 (modifierFlags == NSCommandKeyMask || modifierFlags == (NSCommandKeyMask | NSAlternateKeyMask))
66 && [e clickCount] == 1);
67}
68
69BOOL ICCF_OptionKeyIsDown() {
70 unsigned int modifierFlags = [[NSApp currentEvent] modifierFlags];
71 return (modifierFlags & NSAlternateKeyMask) != 0;
72}
73
74void ICCF_CheckRange(NSRange range) {
75 NSCAssert(range.length > 0, ICCF_LocalizedString(@"No URL is selected"));
76 NSCAssert1(range.length <= ICCF_MAX_URL_LEN, ICCF_LocalizedString(@"The potential URL is longer than %lu characters"), ICCF_MAX_URL_LEN);
77}
78
79void ICCF_Delimiters(NSCharacterSet **leftPtr, NSCharacterSet **rightPtr) {
80 static NSCharacterSet *urlLeftDelimiters = nil, *urlRightDelimiters = nil;
81
82 if (urlLeftDelimiters == nil || urlRightDelimiters == nil) {
83 NSMutableCharacterSet *set = [[NSCharacterSet whitespaceAndNewlineCharacterSet] mutableCopy];
84 NSMutableCharacterSet *tmpSet;
85 [urlLeftDelimiters release];
86 [urlRightDelimiters release];
87
88 [set autorelease];
89 [set formUnionWithCharacterSet: [NSCharacterSet punctuationCharacterSet]];
90 [set removeCharactersInString: @";/?:@&=+$,-_.!~*'()%#"]; // RFC 2396 ¤2.2, 2.3, 2.4, plus #
91
92 tmpSet = [[set mutableCopy] autorelease];
93 [tmpSet formUnionWithCharacterSet: [NSCharacterSet characterSetWithCharactersInString: @"><("]];
94 urlLeftDelimiters = [tmpSet copy]; // make immutable again - for efficiency
95
96 tmpSet = [[set mutableCopy] autorelease];
97 [tmpSet formUnionWithCharacterSet: [NSCharacterSet characterSetWithCharactersInString: @"><)"]];
98 urlRightDelimiters = [tmpSet copy]; // make immutable again - for efficiency
99 }
100
101 *leftPtr = urlLeftDelimiters; *rightPtr = urlRightDelimiters;
102}
103
104static ICInstance ICCF_icInst = NULL;
105
106void ICCF_StartIC() {
107 OSStatus err;
108
109 if (ICCF_icInst != NULL) {
110 ICLog(@"ICCF_StartIC: Internet Config is already running!");
111 ICCF_StopIC();
112 }
113 err = ICStart(&ICCF_icInst, kICCFCreator);
114 NSCAssert1(err == noErr, ICCF_LocalizedString(@"Unable to start Internet Config (error %d)"), err);
115}
116
117void ICCF_StopIC() {
118 if (ICCF_icInst == NULL) {
119 ICLog(@"ICCF_StopIC: Internet Config is not running!");
120 } else {
121 ICStop(ICCF_icInst);
122 ICCF_icInst = NULL;
123 }
124}
125
126ICInstance ICCF_GetInst() {
127 NSCAssert(ICCF_icInst != NULL, @"Internal error: Called ICCF_GetInst without ICCF_StartIC");
128 return ICCF_icInst;
129}
130
131ConstStringPtr ICCF_GetHint(ICInstance inst, const char *urlData, Size length, long *selStart, long *selEnd, Boolean *needsSlashes) {
132 Handle h = NewHandle(0);
133 OSStatus err;
134
135 if (h == NULL) return NULL;
136
137 // parse the URL providing a bogus protocol, to get rid of escaped forms
138 err = ICParseURL(inst, "\p*", urlData, length, selStart, selEnd, h);
139 if (err != noErr) return NULL;
140
141 // scan through the parsed URL looking for characters not found in email addresses
142 Size hSize = GetHandleSize(h);
143 if (hSize == 0) return NULL;
144
145 const char *urlParsed = *h;
146 long i = 0;
147 Boolean sawAt = false;
148 if (hSize >= 2 && urlParsed[0] == '*' && urlParsed[1] == ':') {
149 // this is an IC-inserted protocol; skip over it
150 i = 2;
151 *needsSlashes = (hSize < i + 2 || urlParsed[i] != '/' || urlParsed[i + 1] != '/');
152 } else *needsSlashes = false;
153 for ( ; i < hSize ; i++) {
154 char c = urlParsed[i];
155 if (c == '@') {
156 sawAt = true;
157 } else if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') ||
158 (c == '+' || c == '-' || c == '_' || c == '!' || c == '.'))) {
159 DisposeHandle(h);
160 return "\phttp";
161 }
162 }
163 DisposeHandle(h);
164 if (sawAt) {
165 *needsSlashes = false;
166 return "\pmailto";
167 }
168 return "\phttp";
169}
170
171static const char *kICSlashes = "//";
172
173void ICCF_AddSlashes(Handle h, ConstStringPtr hint) {
174 Size sizeBefore = GetHandleSize(h);
175 unsigned char hintLength = StrLength(hint);
176 char *copy = (char *)malloc(sizeBefore);
177 memcpy(copy, *h, sizeBefore);
178 ICLog(@"ICCF_AddSlashes before: |%s|\n", *h);
179 ReallocateHandle(h, sizeBefore + 2);
180
181 // if *h begins with '<hint>:', then copy the slashes after it
182 if (sizeBefore > hintLength + 1 && strncmp(&hint[1], copy, hintLength) == 0 && copy[hintLength] == ':') {
183 memcpy(*h, copy, hintLength + 1);
184 memcpy(*h + hintLength + 1, kICSlashes, 2);
185 memcpy(*h + hintLength + 3, &copy[hintLength + 1], sizeBefore - hintLength - 1);
186 } else {
187 memcpy(*h, kICSlashes, 2);
188 memcpy(*h + 2, copy, sizeBefore);
189 }
190
191 free(copy);
192 ICLog(@"ICCF_AddSlashes after: |%s|\n", *h);
193}
194
195void ICCF_ParseURL(NSString *string, NSRange *range) {
196 OSStatus err;
197 Handle h;
198 long selStart, selEnd;
199 char *urlData = NULL;
200
201 NSCAssert(range->length == [string length], @"Internal error: URL string is wrong length");
202
203 NS_DURING
204 if ([[NSCharacterSet characterSetWithCharactersInString: @";,."] characterIsMember:
205 [string characterAtIndex: range->length - 1]]) {
206 range->length--;
207 }
208
209 string = [string substringToIndex: range->length];
210
211 ICLog(@"Parsing URL |%@|", string);
212
213 urlData = (char *)malloc( (range->length + 1) * sizeof(char));
214 NSCAssert(urlData != NULL, @"Internal error: canÕt allocate memory for URL string");
215
216 selStart = 0; selEnd = range->length;
217
218 [string getCString: urlData];
219
220 h = NewHandle(0);
221 NSCAssert(h != NULL, @"Internal error: canÕt allocate URL handle");
222
223 err = ICParseURL(ICCF_GetInst(), "\pmailto", urlData, range->length, &selStart, &selEnd, h);
224 DisposeHandle(h);
225
226 ICCF_OSErrCAssert(err, @"ICParseURL");
227
228 range->length = selEnd - selStart;
229 range->location += selStart;
230 NS_HANDLER
231 free(urlData);
232 [localException raise];
233 NS_ENDHANDLER
234
235 free(urlData);
236}
237
238void ICCF_LaunchURL(NSString *string, BOOL chooseApp) {
239 OSStatus err;
240 long selStart, selEnd;
241 unsigned len = [string length];
242
243 Handle h = NULL;
244
245 NS_DURING
246 h = NewHandle(len);
247 if (h == NULL)
248 ICCF_OSErrCAssert(MemError(), @"NewHandle");
249
250 if (CFStringGetBytes((CFStringRef)string, CFRangeMake(0, len), kCFStringEncodingASCII, '\0', false, *h, len, NULL) != len)
251 ICCF_OSErrCAssert(kTECNoConversionPathErr, @"CFStringGetBytes");
252
253 selStart = 0; selEnd = len;
254
255 Boolean needsSlashes;
256 ConstStringPtr hint = ICCF_GetHint(ICCF_GetInst(), *h, len, &selStart, &selEnd, &needsSlashes);
257 NSCAssert(hint != NULL, @"Internal error: canÕt get protocol hint for URL");
258
259 if (needsSlashes) {
260 ICCF_AddSlashes(h, hint);
261 len = selEnd = GetHandleSize(h);
262 }
263
264 if (chooseApp) {
265 err = ICCF_DoURLActionMenu(ICCF_GetInst(), hint, *h, selStart, selEnd);
266 ICCF_OSErrCAssert(err, @"ICCF_DoURLActionMenu");
267 } else {
268 err = ICLaunchURL(ICCF_GetInst(), hint, *h, len, &selStart, &selEnd);
269 ICCF_OSErrCAssert(err, @"ICLaunchURL");
270 }
271
272 NS_HANDLER
273 DisposeHandle(h);
274 [localException raise];
275 NS_ENDHANDLER
276
277 DisposeHandle(h);
278}
279
280// XXX not sure what to do if there's already a selection; BBEdit and MLTE extend it, Tex-Edit Plus doesn't.
281// RFC-ordained max URL length, just to avoid passing IC multi-megabyte documents
282#if ICCF_DEBUG
283const long ICCF_MAX_URL_LEN = 1024; // XXX change later
284#else
285const long ICCF_MAX_URL_LEN = 1024;
286#endif
287
288Boolean ICCF_enabled = true;
289
290BOOL ICCF_HandleException(NSException *e) {
291 if ([e reason] == nil || [[e reason] length] == 0)
292 return NO;
293
294 if (ICCF_prefs.errorSoundEnabled) NSBeep();
295 if (!ICCF_prefs.errorDialogEnabled) return YES;
296
297 int result = NSRunAlertPanel(ICCF_LocalizedString(@"AlertTitle"), ICCF_LocalizedString(@"AlertMessage%@"), nil, nil, ICCF_LocalizedString(@"AlertDisableButton"), e);
298 if (result != NSAlertDefaultReturn) {
299 result = NSRunAlertPanel(ICCF_LocalizedString(@"DisableAlertTitle"), ICCF_LocalizedString(@"DisableAlertMessage"), ICCF_LocalizedString(@"DisableAlertDisableButton"), ICCF_LocalizedString(@"DisableAlertDontDisableButton"), nil);
300 if (result == NSAlertDefaultReturn)
301 ICCF_enabled = NO;
302 }
303 return YES;
304}
305
306void ICCF_LaunchURLFromTextView(NSTextView *self) {
307 NSCharacterSet *urlLeftDelimiters = nil, *urlRightDelimiters = nil;
308 NSRange range = [self selectedRange], delimiterRange;
309 NSColor *insertionPointColor = [self insertionPointColor];
310 NSString *s = [[self textStorage] string]; // according to the class documentation, sending 'string' is guaranteed to be O(1)
311 unsigned extraLen;
312 int i;
313
314 NS_DURING
315
316 NSCAssert(range.location != NSNotFound, ICCF_LocalizedString(@"There is no insertion point or selection in the text field where you clicked"));
317 NSCAssert(s != nil, ICCF_LocalizedString(@"Sorry, ICeCoffEE is unable to locate the insertion point or selection"));
318
319 ICCF_StartIC();
320
321 NSCAssert([s length] != 0, ICCF_LocalizedString(@"No text was found"));
322
323 if (range.location == [s length]) range.location--; // work around bug in selectionRangeForProposedRange (r. 2845418)
324
325 range = [self selectionRangeForProposedRange: range granularity: NSSelectByWord];
326
327 // However, NSSelectByWord does not capture even the approximate boundaries of a URL
328 // (text to a space/line ending character); it'll stop at a period in the middle of a hostname.
329 // So, we expand it as follows:
330
331 ICCF_CheckRange(range);
332
333 ICCF_Delimiters(&urlLeftDelimiters, &urlRightDelimiters);
334
335 // XXX instead of 0, make this stop at the max URL length to prevent protracted searches
336 // add 1 to range to trap delimiters that are on the edge of the selection (i.e., <...)
337 delimiterRange = [s rangeOfCharacterFromSet: urlLeftDelimiters
338 options: NSLiteralSearch | NSBackwardsSearch
339 range: NSMakeRange(0, range.location + (range.location != [s length]))];
340 if (delimiterRange.location == NSNotFound) {
341 // extend to beginning of string
342 range.length += range.location;
343 range.location = 0;
344 } else {
345 NSCAssert(delimiterRange.length == 1, @"Internal error: delimiter matched range is not of length 1");
346 range.length += range.location - delimiterRange.location - 1;
347 range.location = delimiterRange.location + 1;
348 }
349
350 ICCF_CheckRange(range);
351
352 // XXX instead of length of string, make this stop at the max URL length to prevent protracted searches
353 // add 1 to range to trap delimiters that are on the edge of the selection (i.e., ...>)
354 extraLen = [s length] - range.location - range.length;
355 delimiterRange = [s rangeOfCharacterFromSet: urlRightDelimiters
356 options: NSLiteralSearch
357 range: NSMakeRange(range.location + range.length - (range.length != 0),
358 extraLen + (range.length != 0))];
359 if (delimiterRange.location == NSNotFound) {
360 // extend to end of string
361 range.length += extraLen;
362 } else {
363 NSCAssert(delimiterRange.length == 1, @"Internal error: delimiter matched range is not of length 1");
364 range.length += delimiterRange.location - range.location - range.length;
365 }
366
367 ICCF_CheckRange(range);
368
369 ICCF_ParseURL([s substringWithRange: range], &range);
370
371 [self setSelectedRange: range affinity: NSSelectionAffinityDownstream stillSelecting: NO];
372 [self display];
373
374 ICCF_LaunchURL([s substringWithRange: range], ICCF_OptionKeyIsDown());
375
376 if (ICCF_prefs.textBlinkEnabled) {
377 for (i = 0 ; i < ICCF_prefs.textBlinkCount ; i++) {
378 NSRange emptyRange = {range.location, 0};
379 [self setSelectedRange: emptyRange affinity: NSSelectionAffinityDownstream stillSelecting: YES];
380 [self display];
381 usleep(kICBlinkDelayUsecs);
382 [self setInsertionPointColor: [self backgroundColor]];
383 [self setSelectedRange: range affinity: NSSelectionAffinityDownstream stillSelecting: YES];
384 [self display];
385 usleep(kICBlinkDelayUsecs);
386 }
387 }
388
389 NS_HANDLER
390 ICCF_HandleException(localException);
391 NS_ENDHANDLER
392
393 ICCF_StopIC();
394 [self setInsertionPointColor: insertionPointColor];
395}
396
397NSString * const ICCF_SERVICES_ITEM = @"ICeCoffEE Services Item";
398
399NSMenuItem *ICCF_ServicesMenuItem() {
400 NSMenuItem *servicesItem;
401 NSMenu *servicesMenu;
402 // XXX better to just use [[NSApp servicesMenu] title]? That grabs the title from the existing Services submenu.
403 NSString *servicesTitle = [[NSBundle bundleWithIdentifier: @"com.apple.AppKit"] localizedStringForKey: @"Services" value: nil table: @"ServicesMenu"];
404 if (servicesTitle == nil) {
405 ICLog(@"CanÕt get localized text for ÒServicesÓ in AppKit.framework");
406 servicesTitle = @"Services";
407 }
408 servicesMenu = [[NSMenu alloc] initWithTitle: servicesTitle];
409 servicesItem = [[NSMenuItem alloc] initWithTitle: servicesTitle action:nil keyEquivalent:@""];
410 [[NSApplication sharedApplication] setServicesMenu: servicesMenu];
411 [servicesItem setSubmenu: servicesMenu];
412 [servicesItem setRepresentedObject: ICCF_SERVICES_ITEM];
413 [servicesMenu release];
414 return servicesItem;
415}
416
417void ICCF_AddRemoveServicesMenu() {
418 // needed because:
419 // (a) we get called before the runloop has properly started and will crash if we don't delay on app startup
420 // (b) the APE message handler calls us from another thread and nothing happens if we try to add a menu on it
421 [ICeCoffEE performSelectorOnMainThread: @selector(IC_addRemoveServicesMenu) withObject: nil waitUntilDone: NO];
422}
423
424NSMenu *ICCF_MenuForEvent(NSTextView *self, NSMenu *contextMenu, NSEvent *e) {
425 if (contextMenu != nil && [e type] == NSRightMouseDown || ([e type] == NSLeftMouseDown && [e modifierFlags] & NSControlKeyMask)) {
426 int servicesItemIndex = [contextMenu indexOfItemWithRepresentedObject: ICCF_SERVICES_ITEM];
427 if (servicesItemIndex == -1 && ICCF_prefs.servicesInContextualMenu) {
428 [contextMenu addItem: [NSMenuItem separatorItem]];
429 [contextMenu addItem: ICCF_ServicesMenuItem()];
430 } else if (servicesItemIndex != -1 && !ICCF_prefs.servicesInContextualMenu) {
431 [contextMenu removeItemAtIndex: servicesItemIndex];
432 [contextMenu removeItemAtIndex: servicesItemIndex - 1];
433 }
434 }
435 return contextMenu;
436}
437
438@implementation ICeCoffEE
439
440+ (void)IC_addRemoveServicesMenu;
441{
442 NSMenu *mainMenu = [[NSApplication sharedApplication] mainMenu];
443 static NSMenuItem *servicesItem = nil;
444
445 if (servicesItem == nil && ICCF_prefs.servicesInMenuBar) {
446 servicesItem = [ICCF_ServicesMenuItem() retain];
447
448 int insertLoc = [mainMenu indexOfItemWithSubmenu: [NSApp windowsMenu]];
449 if (insertLoc == -1)
450 insertLoc = [mainMenu numberOfItems];
451
452 [mainMenu insertItem: servicesItem atIndex: insertLoc];
453 } else if (servicesItem != nil && !ICCF_prefs.servicesInMenuBar) {
454 [mainMenu removeItem: servicesItem];
455 [servicesItem release];
456 servicesItem = nil;
457 }
458}
459
460// XXX localization?
461- (NSMenu *)menuForEvent:(NSEvent *)e;
462{
463 NSMenu *myMenu = [super menuForEvent: e];
464 return ICCF_MenuForEvent(self, myMenu, e);
465}
466
467- (void)mouseDown:(NSEvent *)e;
468{
469#if ICCF_DEBUG
470 static BOOL down = NO;
471 if (down) {
472 ICLog(@"recursive invocation!");
473 return;
474 }
475 down = YES;
476 ICLog(@"ICeCoffEE down: %@", e);
477#endif
478 // we don't actually get a mouseUp event, just wait for mouseDown to return
479 [super mouseDown: e];
480 if (!ICCF_enabled || !ICCF_prefs.commandClickEnabled) {
481#if ICCF_DEBUG
482 down = NO;
483#endif
484 return;
485 }
486 // don't want command-shift-click, etc. to trigger
487 if (ICCF_EventIsCommandMouseDown(e)) {
488 NSEvent *upEvent = [[self window] currentEvent];
489 NSPoint downPt = [e locationInWindow];
490 NSPoint upPt = [upEvent locationInWindow];
491 ICLog(@"next: %@", upEvent);
492 NSAssert([upEvent type] == NSLeftMouseUp, @"NSTextView mouseDown: did not return with current event as mouse up!");
493 if (abs(downPt.x - upPt.x) <= kICHysteresisPixels && abs(downPt.y - upPt.y) <= kICHysteresisPixels) {
494 ICCF_LaunchURLFromTextView(self);
495 }
496 }
497#if ICCF_DEBUG
498 down = NO;
499#endif
500}
501
502@end
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