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Diffstat (limited to 'platform/ios/Classes/MuDocumentController.m')
| -rw-r--r-- | platform/ios/Classes/MuDocumentController.m | 1181 |
1 files changed, 0 insertions, 1181 deletions
diff --git a/platform/ios/Classes/MuDocumentController.m b/platform/ios/Classes/MuDocumentController.m deleted file mode 100644 index 2a070b71..00000000 --- a/platform/ios/Classes/MuDocumentController.m +++ /dev/null @@ -1,1181 +0,0 @@ -#include "common.h" - -#import "MuPageViewNormal.h" -#import "MuPageViewReflow.h" -#import "MuDocumentController.h" -#import "MuTextFieldController.h" -#import "MuChoiceFieldController.h" -#import "MuPrintPageRenderer.h" - -#define GAP 20 -#define INDICATOR_Y -44-24 -#define SLIDER_W (width - GAP - 24) -#define SEARCH_W (width - GAP - 170) -#define MIN_SCALE (1.0) -#define MAX_SCALE (5.0) - -static NSString *const AlertTitle = @"Save Document?"; -// Correct functioning of the app relies on CloseAlertMessage and ShareAlertMessage differing -static NSString *const CloseAlertMessage = @"Changes have been made to the document that will be lost if not saved"; -static NSString *const ShareAlertMessage = @"Your changes will not be shared unless the document is first saved"; - -static void flattenOutline(NSMutableArray *titles, NSMutableArray *pages, fz_outline *outline, int level) -{ - char indent[8*4+1]; - if (level > 8) - level = 8; - memset(indent, ' ', level * 4); - indent[level * 4] = 0; - while (outline) - { - int page = outline->page; - if (page >= 0 && outline->title) - { - NSString *title = @(outline->title); - [titles addObject: [NSString stringWithFormat: @"%s%@", indent, title]]; - [pages addObject: @(page)]; - } - flattenOutline(titles, pages, outline->down, level + 1); - outline = outline->next; - } -} - -static char *tmp_path(const char *path) -{ - int f; - char *buf = malloc(strlen(path) + 6 + 1); - if (!buf) - return NULL; - - strcpy(buf, path); - strcat(buf, "XXXXXX"); - - f = mkstemp(buf); - - if (f >= 0) - { - close(f); - return buf; - } - else - { - free(buf); - return NULL; - } -} - -static void saveDoc(const char *current_path, fz_document *doc) -{ - char *tmp; - pdf_document *idoc = pdf_specifics(ctx, doc); - pdf_write_options opts = { 0 }; - - opts.do_incremental = 1; - - if (!idoc) - return; - - tmp = tmp_path(current_path); - if (tmp) - { - int written = 0; - - fz_var(written); - fz_try(ctx) - { - FILE *fin = fopen(current_path, "rb"); - FILE *fout = fopen(tmp, "wb"); - char buf[256]; - size_t n; - int err = 1; - - if (fin && fout) - { - while ((n = fread(buf, 1, sizeof(buf), fin)) > 0) - fwrite(buf, 1, n, fout); - err = (ferror(fin) || ferror(fout)); - } - - if (fin) - fclose(fin); - if (fout) - fclose(fout); - - if (!err) - { - pdf_save_document(ctx, idoc, tmp, &opts); - written = 1; - } - } - fz_catch(ctx) - { - written = 0; - } - - if (written) - { - rename(tmp, current_path); - } - - free(tmp); - } -} - -@implementation MuDocumentController -{ - fz_document *doc; - MuDocRef *docRef; - NSString *key; - NSString *_filePath; - BOOL reflowMode; - MuOutlineController *outline; - UIScrollView *canvas; - UILabel *indicator; - UISlider *slider; - UISearchBar *searchBar; - UIBarButtonItem *nextButton, *prevButton, *cancelButton, *searchButton, *outlineButton, *linkButton; - UIBarButtonItem *moreButton; - UIBarButtonItem *shareButton, *printButton, *annotButton; - UIBarButtonItem *highlightButton, *underlineButton, *strikeoutButton; - UIBarButtonItem *inkButton; - UIBarButtonItem *tickButton; - UIBarButtonItem *deleteButton; - UIBarButtonItem *reflowButton; - UIBarButtonItem *backButton; - UIBarButtonItem *sliderWrapper; - int barmode; - int searchPage; - int cancelSearch; - int showLinks; - int width; // current screen size - int height; - int current; // currently visible page - int scroll_animating; // stop view updates during scrolling animations - float scale; // scale applied to views (only used in reflow mode) - BOOL _isRotating; -} - -- (instancetype) initWithFilename: (NSString*)filename path:(NSString *)cstr document: (MuDocRef *)aDoc -{ - self = [super initWithNibName:nil bundle:nil]; - if (!self) - return nil; - -#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000 - if ([self respondsToSelector:@selector(automaticallyAdjustsScrollViewInsets)]) - self.automaticallyAdjustsScrollViewInsets = NO; -#endif - key = [filename copy]; - docRef = [aDoc retain]; - doc = docRef->doc; - _filePath = [cstr copy]; - - // this will be created right before the outline is shown - outline = nil; - - dispatch_sync(queue, ^{}); - - return self; -} - -- (UIBarButtonItem *) newResourceBasedButton:(NSString *)resource withAction:(SEL)selector -{ - if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) - { - return [[UIBarButtonItem alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:resource ofType:@"png"]] style:UIBarButtonItemStylePlain target:self action:selector]; - } - else - { - UIView *buttonView; - BOOL iOS7Style = (([UIDevice currentDevice].systemVersion).floatValue >= 7.0f); - UIButton *button = [UIButton buttonWithType:iOS7Style ? UIButtonTypeSystem : UIButtonTypeCustom]; - [button setImage:[UIImage imageNamed:resource] forState:UIControlStateNormal]; - [button addTarget:self action:selector forControlEvents:UIControlEventTouchUpInside]; - [button sizeToFit]; - buttonView = button; - - return [[UIBarButtonItem alloc] initWithCustomView:buttonView]; - } -} - -- (void) addMainMenuButtons -{ - NSMutableArray *array = [NSMutableArray arrayWithCapacity:3]; - [array addObject:moreButton]; - [array addObject:searchButton]; - if (outlineButton) - [array addObject:outlineButton]; - [array addObject:reflowButton]; - [array addObject:linkButton]; - self.navigationItem.rightBarButtonItems = array ; - self.navigationItem.leftBarButtonItem = backButton; -} - -- (void) loadView -{ - [[NSUserDefaults standardUserDefaults] setObject: key forKey: @"OpenDocumentKey"]; - - current = (int)[[NSUserDefaults standardUserDefaults] integerForKey: key]; - if (current < 0 || current >= fz_count_pages(ctx, doc)) - current = 0; - - UIView *view = [[UIView alloc] initWithFrame: CGRectZero]; - view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; - [view setAutoresizesSubviews: YES]; - view.backgroundColor = [UIColor grayColor]; - - canvas = [[UIScrollView alloc] initWithFrame: CGRectMake(0,0,GAP,0)]; - canvas.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; - [canvas setPagingEnabled: YES]; - [canvas setShowsHorizontalScrollIndicator: NO]; - [canvas setShowsVerticalScrollIndicator: NO]; - canvas.delegate = self; - - UITapGestureRecognizer *tapRecog = [[UITapGestureRecognizer alloc] initWithTarget: self action: @selector(onTap:)]; - tapRecog.delegate = self; - [canvas addGestureRecognizer: tapRecog]; - [tapRecog release]; - // In reflow mode, we need to track pinch gestures on the canvas and pass - // the scale changes to the subviews. - UIPinchGestureRecognizer *pinchRecog = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(onPinch:)]; - pinchRecog.delegate = self; - [canvas addGestureRecognizer:pinchRecog]; - [pinchRecog release]; - - scale = 1.0; - - scroll_animating = NO; - - indicator = [[UILabel alloc] initWithFrame: CGRectZero]; - indicator.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin; - indicator.text = @"0000 of 9999"; - [indicator sizeToFit]; - indicator.center = CGPointMake(0, INDICATOR_Y); - indicator.textAlignment = NSTextAlignmentCenter; - indicator.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent: 0.5]; - indicator.textColor = [UIColor whiteColor]; - - [view addSubview: canvas]; - [view addSubview: indicator]; - - slider = [[UISlider alloc] initWithFrame: CGRectZero]; - slider.minimumValue = 0; - slider.maximumValue = fz_count_pages(ctx, doc) - 1; - [slider addTarget: self action: @selector(onSlide:) forControlEvents: UIControlEventValueChanged]; - - if ([UIDevice currentDevice].systemVersion.floatValue < 7.0) - { - sliderWrapper = [[UIBarButtonItem alloc] initWithCustomView: slider]; - - self.toolbarItems = @[sliderWrapper]; - } - - // Set up the buttons on the navigation and search bar - - fz_outline *outlineRoot; - fz_try(ctx) - outlineRoot = fz_load_outline(ctx, doc); - fz_catch(ctx) - outlineRoot = NULL; - if (outlineRoot) - { - // only show the outline button if there is an outline - outlineButton = [self newResourceBasedButton:@"ic_list" withAction:@selector(onShowOutline:)]; - fz_drop_outline(ctx, outlineRoot); - } - - linkButton = [self newResourceBasedButton:@"ic_link" withAction:@selector(onToggleLinks:)]; - cancelButton = [self newResourceBasedButton:@"ic_cancel" withAction:@selector(onCancel:)]; - searchButton = [self newResourceBasedButton:@"ic_magnifying_glass" withAction:@selector(onShowSearch:)]; - prevButton = [self newResourceBasedButton:@"ic_arrow_left" withAction:@selector(onSearchPrev:)]; - nextButton = [self newResourceBasedButton:@"ic_arrow_right" withAction:@selector(onSearchNext:)]; - reflowButton = [self newResourceBasedButton:@"ic_reflow" withAction:@selector(onToggleReflow:)]; - moreButton = [self newResourceBasedButton:@"ic_more" withAction:@selector(onMore:)]; - annotButton = [self newResourceBasedButton:@"ic_annotation" withAction:@selector(onAnnot:)]; - shareButton = [self newResourceBasedButton:@"ic_share" withAction:@selector(onShare:)]; - printButton = [self newResourceBasedButton:@"ic_print" withAction:@selector(onPrint:)]; - highlightButton = [self newResourceBasedButton:@"ic_highlight" withAction:@selector(onHighlight:)]; - underlineButton = [self newResourceBasedButton:@"ic_underline" withAction:@selector(onUnderline:)]; - strikeoutButton = [self newResourceBasedButton:@"ic_strike" withAction:@selector(onStrikeout:)]; - inkButton = [self newResourceBasedButton:@"ic_pen" withAction:@selector(onInk:)]; - tickButton = [self newResourceBasedButton:@"ic_check" withAction:@selector(onTick:)]; - deleteButton = [self newResourceBasedButton:@"ic_trash" withAction:@selector(onDelete:)]; - searchBar = [[UISearchBar alloc] initWithFrame: CGRectMake(0,0,50,32)]; - backButton = [self newResourceBasedButton:@"ic_arrow_left" withAction:@selector(onBack:)]; - searchBar.placeholder = @"Search"; - searchBar.delegate = self; - - [prevButton setEnabled: NO]; - [nextButton setEnabled: NO]; - - [self addMainMenuButtons]; - - // TODO: add activityindicator to search bar - - self.view = view; - [view release]; -} - -- (void) dealloc -{ - [docRef release]; docRef = nil; doc = NULL; - [indicator release]; indicator = nil; - [slider release]; slider = nil; - [sliderWrapper release]; sliderWrapper = nil; - [reflowButton release]; reflowButton = nil; - [backButton release]; backButton = nil; - [moreButton release]; moreButton = nil; - [searchBar release]; searchBar = nil; - [outlineButton release]; outlineButton = nil; - [linkButton release]; linkButton = nil; - [searchButton release]; searchButton = nil; - [cancelButton release]; cancelButton = nil; - [prevButton release]; prevButton = nil; - [nextButton release]; nextButton = nil; - [shareButton release]; shareButton = nil; - [printButton release]; printButton = nil; - [annotButton release]; annotButton = nil; - [highlightButton release]; highlightButton = nil; - [underlineButton release]; underlineButton = nil; - [strikeoutButton release]; strikeoutButton = nil; - [inkButton release]; inkButton = nil; - [tickButton release]; tickButton = nil; - [deleteButton release]; deleteButton = nil; - [canvas release]; canvas = nil; - [_filePath release]; _filePath = NULL; - - [outline release]; - [key release]; - [super dealloc]; -} - -- (void) viewWillAppear: (BOOL)animated -{ - [super viewWillAppear:animated]; - self.title = key.lastPathComponent; - - slider.value = current; - - if ([UIDevice currentDevice].systemVersion.floatValue >= 7.0) - [self.navigationController.toolbar addSubview:slider]; - - indicator.text = [NSString stringWithFormat: @" %d of %d ", current+1, fz_count_pages(ctx, doc)]; - - [self.navigationController setToolbarHidden: NO animated: animated]; -} - -- (void) viewWillLayoutSubviews -{ - CGSize size = canvas.frame.size; - int max_width = fz_max(width, size.width); - - width = size.width; - height = size.height; - - canvas.contentInset = UIEdgeInsetsZero; - canvas.contentSize = CGSizeMake(fz_count_pages(ctx, doc) * width, height); - canvas.contentOffset = CGPointMake(current * width, 0); - - [sliderWrapper setWidth: SLIDER_W]; - searchBar.frame = CGRectMake(0,0,SEARCH_W,32); - if ([UIDevice currentDevice].systemVersion.floatValue >= 7.0) - { - CGRect r = self.navigationController.toolbar.frame; - r.origin.x = 0; - r.origin.y = 0; - slider.frame = r; - } - - [self.navigationController.toolbar setNeedsLayout]; // force layout! - - // use max_width so we don't clamp the content offset too early during animation - canvas.contentSize = CGSizeMake(fz_count_pages(ctx, doc) * max_width, height); - canvas.contentOffset = CGPointMake(current * width, 0); - - for (UIView<MuPageView> *view in canvas.subviews) { - if (view.number == current) { - view.frame = CGRectMake(view.number * width, 0, width-GAP, height); - [view willRotate]; - } - } - for (UIView<MuPageView> *view in canvas.subviews) { - if (view.number != current) { - view.frame = CGRectMake(view.number * width, 0, width-GAP, height); - [view willRotate]; - } - } -} - -- (void) viewDidAppear: (BOOL)animated -{ - [super viewDidAppear:animated]; - [self scrollViewDidScroll: canvas]; -} - -- (void) viewWillDisappear: (BOOL)animated -{ - [super viewWillDisappear:animated]; - if ([UIDevice currentDevice].systemVersion.floatValue >= 7.0) - [slider removeFromSuperview]; - - self.title = @"Resume"; - [[NSUserDefaults standardUserDefaults] removeObjectForKey: @"OpenDocumentKey"]; - [self.navigationController setToolbarHidden: YES animated: animated]; -} - -- (void) showNavigationBar -{ - if (self.navigationController.navigationBarHidden) { - [sliderWrapper setWidth: SLIDER_W]; - if ([UIDevice currentDevice].systemVersion.floatValue >= 7.0) - { - CGRect r = self.navigationController.toolbar.frame; - r.origin.x = 0; - r.origin.y = 0; - slider.frame = r; - } - [self.navigationController setNavigationBarHidden: NO]; - [self.navigationController setToolbarHidden: NO]; - [indicator setHidden: NO]; - - [UIView beginAnimations: @"MuNavBar" context: NULL]; - - self.navigationController.navigationBar.alpha = 1; - self.navigationController.toolbar.alpha = 1; - indicator.alpha = 1; - - [UIView commitAnimations]; - } -} - -- (void) hideNavigationBar -{ - if (!self.navigationController.navigationBarHidden) { - [searchBar resignFirstResponder]; - - [UIView beginAnimations: @"MuNavBar" context: NULL]; - [UIView setAnimationDelegate: self]; - [UIView setAnimationDidStopSelector: @selector(onHideNavigationBarFinished)]; - - self.navigationController.navigationBar.alpha = 0; - self.navigationController.toolbar.alpha = 0; - indicator.alpha = 0; - - [UIView commitAnimations]; - } -} - -- (void) onHideNavigationBarFinished -{ - [self.navigationController setNavigationBarHidden: YES]; - [self.navigationController setToolbarHidden: YES]; - [indicator setHidden: YES]; -} - -- (void) onShowOutline: (id)sender -{ - // rebuild the outline in case the layout has changed - fz_outline *root; - fz_try(ctx) - root = fz_load_outline(ctx, doc); - fz_catch(ctx) - root = NULL; - if (root) - { - NSMutableArray *titles = [[NSMutableArray alloc] init]; - NSMutableArray *pages = [[NSMutableArray alloc] init]; - flattenOutline(titles, pages, root, 0); - [outline release]; - if (titles.count) - outline = [[MuOutlineController alloc] initWithTarget: self titles: titles pages: pages]; - [titles release]; - [pages release]; - fz_drop_outline(ctx, root); - } - - // now show it - - [self.navigationController pushViewController: outline animated: YES]; -} - -- (void) onToggleLinks: (id)sender -{ - showLinks = !showLinks; - for (UIView<MuPageView> *view in canvas.subviews) - { - if (showLinks) - [view showLinks]; - else - [view hideLinks]; - } -} - -- (void) onToggleReflow: (id)sender -{ - reflowMode = !reflowMode; - - annotButton.enabled = !reflowMode; - searchButton.enabled = !reflowMode; - linkButton.enabled = !reflowMode; - moreButton.enabled = !reflowMode; - - [canvas.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)]; - [self scrollViewDidScroll:canvas]; -} - -- (void) showMoreMenu -{ - NSMutableArray *rightbuttons = [NSMutableArray arrayWithObjects:printButton, shareButton, nil]; - if (docRef->interactive) - [rightbuttons insertObject:annotButton atIndex:0]; - self.navigationItem.rightBarButtonItems = rightbuttons; - self.navigationItem.leftBarButtonItem = cancelButton; - - barmode = BARMODE_MORE; -} - -- (void) showAnnotationMenu -{ - self.navigationItem.rightBarButtonItems = @[inkButton, strikeoutButton, underlineButton, highlightButton]; - self.navigationItem.leftBarButtonItem = cancelButton; - - for (UIView<MuPageView> *view in canvas.subviews) - { - if (view.number == current) - [view deselectAnnotation]; - } - - barmode = BARMODE_ANNOTATION; -} - -- (void) update -{ - for (UIView<MuPageView> *view in canvas.subviews) - [view update]; -} - -- (void) onMore: (id)sender -{ - [self showMoreMenu]; -} - -- (void) onAnnot: (id)sender -{ - [self showAnnotationMenu]; -} - -- (void) onPrint: (id)sender -{ - UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController]; - if (pic) { - UIPrintInfo *printInfo = [UIPrintInfo printInfo]; - printInfo.outputType = UIPrintInfoOutputGeneral; - printInfo.jobName = key; - printInfo.duplex = UIPrintInfoDuplexLongEdge; - pic.printInfo = printInfo; - pic.showsPageRange = YES; - pic.printPageRenderer = [[[MuPrintPageRenderer alloc] initWithDocRef:docRef] autorelease]; - - void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) = - ^(UIPrintInteractionController *pic, BOOL completed, NSError *error) { - if (!completed && error) - NSLog(@"FAILED! due to error in domain %@ with error code %u", - error.domain, (unsigned int)error.code); - }; - if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { - [pic presentFromBarButtonItem:printButton animated:YES - completionHandler:completionHandler]; - } else { - [pic presentAnimated:YES completionHandler:completionHandler]; - } - } -} - -- (void) shareDocument -{ - NSURL *url = [NSURL fileURLWithPath:_filePath]; - UIActivityViewController *cont = [[UIActivityViewController alloc] initWithActivityItems:@[url] applicationActivities:nil]; - cont.popoverPresentationController.barButtonItem = shareButton; - [self presentViewController:cont animated:YES completion:nil]; - [cont release]; -} - -- (void) onShare: (id)sender -{ - pdf_document *idoc = pdf_specifics(ctx, doc); - if (idoc && pdf_has_unsaved_changes(ctx, idoc)) - { - UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:AlertTitle message:ShareAlertMessage delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Save and Share", nil]; - [alertView show]; - [alertView release]; - } - else - { - [self shareDocument]; - } -} - -- (void) textSelectModeOn -{ - self.navigationItem.rightBarButtonItems = @[tickButton]; - for (UIView<MuPageView> *view in canvas.subviews) - { - if (view.number == current) - [view textSelectModeOn]; - } -} - -- (void) textSelectModeOff -{ - for (UIView<MuPageView> *view in canvas.subviews) - { - [view textSelectModeOff]; - } -} - -- (void) inkModeOn -{ - self.navigationItem.rightBarButtonItems = @[tickButton]; - for (UIView<MuPageView> *view in canvas.subviews) - { - if (view.number == current) - [view inkModeOn]; - } -} - -- (void) deleteModeOn -{ - self.navigationItem.rightBarButtonItems = @[deleteButton]; - barmode = BARMODE_DELETE; -} - -- (void) inkModeOff -{ - for (UIView<MuPageView> *view in canvas.subviews) - { - [view inkModeOff]; - } -} - -- (void) onHighlight: (id)sender -{ - barmode = BARMODE_HIGHLIGHT; - [self textSelectModeOn]; -} - -- (void) onUnderline: (id)sender -{ - barmode = BARMODE_UNDERLINE; - [self textSelectModeOn]; -} - -- (void) onStrikeout: (id)sender -{ - barmode = BARMODE_STRIKE; - [self textSelectModeOn]; -} - -- (void) onInk: (id)sender -{ - barmode = BARMODE_INK; - [self inkModeOn]; -} - -- (void) onShowSearch: (id)sender -{ - self.navigationItem.rightBarButtonItems = @[nextButton, prevButton]; - self.navigationItem.leftBarButtonItem = cancelButton; - self.navigationItem.titleView = searchBar; - [searchBar becomeFirstResponder]; - barmode = BARMODE_SEARCH; -} - -- (void) onTick: (id)sender -{ - for (UIView<MuPageView> *view in canvas.subviews) - { - if (view.number == current) - { - switch (barmode) - { - case BARMODE_HIGHLIGHT: - [view saveSelectionAsMarkup:PDF_ANNOT_HIGHLIGHT]; - break; - - case BARMODE_UNDERLINE: - [view saveSelectionAsMarkup:PDF_ANNOT_UNDERLINE]; - break; - - case BARMODE_STRIKE: - [view saveSelectionAsMarkup:PDF_ANNOT_STRIKE_OUT]; - break; - - case BARMODE_INK: - [view saveInk]; - } - } - } - - [self showAnnotationMenu]; -} - -- (void) onDelete: (id)sender -{ - for (UIView<MuPageView> *view in canvas.subviews) - { - if (view.number == current) - [view deleteSelectedAnnotation]; - } - [self showAnnotationMenu]; -} - -- (void) onCancel: (id)sender -{ - switch (barmode) - { - case BARMODE_SEARCH: - cancelSearch = YES; - [searchBar resignFirstResponder]; - [self resetSearch]; - /* fallthrough */ - case BARMODE_ANNOTATION: - case BARMODE_MORE: - [self.navigationItem setTitleView: nil]; - [self addMainMenuButtons]; - barmode = BARMODE_MAIN; - break; - - case BARMODE_HIGHLIGHT: - case BARMODE_UNDERLINE: - case BARMODE_STRIKE: - case BARMODE_DELETE: - [self showAnnotationMenu]; - [self textSelectModeOff]; - break; - - case BARMODE_INK: - [self showAnnotationMenu]; - [self inkModeOff]; - break; - } -} - -- (void) onBack: (id)sender -{ - pdf_document *idoc = pdf_specifics(ctx, doc); - if (idoc && pdf_has_unsaved_changes(ctx, idoc)) - { - UIAlertView *saveAlert = [[UIAlertView alloc] - initWithTitle:AlertTitle message:CloseAlertMessage delegate:self - cancelButtonTitle:@"Discard" otherButtonTitles:@"Save", nil]; - [saveAlert show]; - [saveAlert release]; - } - else - { - [self.navigationController popViewControllerAnimated:YES]; - } -} - -- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex -{ - if ([CloseAlertMessage isEqualToString:alertView.message]) - { - if (buttonIndex == 1) - saveDoc(_filePath.UTF8String, doc); - - [alertView dismissWithClickedButtonIndex:buttonIndex animated:YES]; - [self.navigationController popViewControllerAnimated:YES]; - } - - if ([ShareAlertMessage isEqualToString:alertView.message]) - { - [alertView dismissWithClickedButtonIndex:buttonIndex animated:NO]; - if (buttonIndex == 1) - { - saveDoc(_filePath.UTF8String, doc); - [self shareDocument]; - } - } -} - -- (void) resetSearch -{ - searchPage = -1; - for (UIView<MuPageView> *view in canvas.subviews) - [view clearSearchResults]; -} - -- (void) showSearchResults: (int)count forPage: (int)number -{ - printf("search found match on page %d\n", number); - searchPage = number; - [self gotoPage: number animated: NO]; - for (UIView<MuPageView> *view in canvas.subviews) - if (view.number == number) - [view showSearchResults: count]; - else - [view clearSearchResults]; -} - -- (void) searchInDirection: (int)dir -{ - UITextField *searchField; - char *needle; - int start; - - [searchBar resignFirstResponder]; - - if (searchPage == current) - start = current + dir; - else - start = current; - - needle = strdup(searchBar.text.UTF8String); - - searchField = nil; - for (id view in searchBar.subviews) - if ([view isKindOfClass: [UITextField class]]) - searchField = view; - - [prevButton setEnabled: NO]; - [nextButton setEnabled: NO]; - [searchField setEnabled: NO]; - - cancelSearch = NO; - - dispatch_async(queue, ^{ - for (int i = start; i >= 0 && i < fz_count_pages(ctx, doc); i += dir) { - int n = search_page(doc, i, needle, NULL); - if (n) { - dispatch_async(dispatch_get_main_queue(), ^{ - [prevButton setEnabled: YES]; - [nextButton setEnabled: YES]; - [searchField setEnabled: YES]; - [self showSearchResults: n forPage: i]; - free(needle); - }); - return; - } - if (cancelSearch) { - dispatch_async(dispatch_get_main_queue(), ^{ - [prevButton setEnabled: YES]; - [nextButton setEnabled: YES]; - [searchField setEnabled: YES]; - free(needle); - }); - return; - } - } - dispatch_async(dispatch_get_main_queue(), ^{ - printf("no search results found\n"); - [prevButton setEnabled: YES]; - [nextButton setEnabled: YES]; - [searchField setEnabled: YES]; - UIAlertView *alert = [[UIAlertView alloc] - initWithTitle: @"No matches found for:" - message: @(needle) - delegate: nil - cancelButtonTitle: @"Close" - otherButtonTitles: nil]; - [alert show]; - [alert release]; - free(needle); - }); - }); -} - -- (void) onSearchPrev: (id)sender -{ - [self searchInDirection: -1]; -} - -- (void) onSearchNext: (id)sender -{ - [self searchInDirection: 1]; -} - -- (void) searchBarSearchButtonClicked: (UISearchBar*)sender -{ - [self onSearchNext: sender]; -} - -- (void) searchBar: (UISearchBar*)sender textDidChange: (NSString*)searchText -{ - [self resetSearch]; - if (searchBar.text.length > 0) { - [prevButton setEnabled: YES]; - [nextButton setEnabled: YES]; - } else { - [prevButton setEnabled: NO]; - [nextButton setEnabled: NO]; - } -} - -- (void) onSlide: (id)sender -{ - int number = slider.value; - if (slider.tracking) - indicator.text = [NSString stringWithFormat: @" %d of %d ", number+1, fz_count_pages(ctx, doc)]; - else - [self gotoPage: number animated: NO]; -} - -- (BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer -{ - // For reflow mode, we load UIWebViews into the canvas. Returning YES - // here prevents them stealing our tap and pinch events. - return YES; -} - -- (void) onTap: (UITapGestureRecognizer*)sender -{ - CGPoint p = [sender locationInView: canvas]; - CGPoint ofs = canvas.contentOffset; - float x0 = (width - GAP) / 5; - float x1 = (width - GAP) - x0; - p.x -= ofs.x; - p.y -= ofs.y; - __block BOOL tapHandled = NO; - for (UIView<MuPageView> *view in canvas.subviews) - { - CGPoint pp = [sender locationInView:view]; - if (CGRectContainsPoint(view.bounds, pp)) - { - MuTapResult *result = [view handleTap:pp]; - __block BOOL hitAnnot = NO; - [result switchCaseInternal:^(MuTapResultInternalLink *link) { - [self gotoPage:link.pageNumber animated:NO]; - tapHandled = YES; - } caseExternal:^(MuTapResultExternalLink *link) { - // Not currently supported - } caseRemote:^(MuTapResultRemoteLink *link) { - // Not currently supported - } caseWidget:^(MuTapResultWidget *widget) { - tapHandled = YES; - } caseAnnotation:^(MuTapResultAnnotation *annot) { - hitAnnot = YES; - }]; - - switch (barmode) - { - case BARMODE_ANNOTATION: - if (hitAnnot) - [self deleteModeOn]; - tapHandled = YES; - break; - - case BARMODE_DELETE: - if (!hitAnnot) - [self showAnnotationMenu]; - tapHandled = YES; - break; - - default: - if (hitAnnot) - { - // Annotation will have been selected, which is wanted - // only in annotation-editing mode - [view deselectAnnotation]; - } - break; - } - - if (tapHandled) - break; - } - } - if (tapHandled) { - // Do nothing further - } else if (p.x < x0) { - [self gotoPage: current-1 animated: YES]; - } else if (p.x > x1) { - [self gotoPage: current+1 animated: YES]; - } else { - if (self.navigationController.navigationBarHidden) - [self showNavigationBar]; - else if (barmode == BARMODE_MAIN) - [self hideNavigationBar]; - } -} - -- (void) onPinch:(UIPinchGestureRecognizer*)sender -{ - if (sender.state == UIGestureRecognizerStateBegan) - sender.scale = scale; - - if (sender.scale < MIN_SCALE) - sender.scale = MIN_SCALE; - - if (sender.scale > MAX_SCALE) - sender.scale = MAX_SCALE; - - if (sender.state == UIGestureRecognizerStateEnded) - scale = sender.scale; - - for (UIView<MuPageView> *view in canvas.subviews) - { - // Zoom only the visible page until end of gesture - if (view.number == current || sender.state == UIGestureRecognizerStateEnded) - [view setScale:sender.scale]; - } -} - -- (void) scrollViewWillBeginDragging: (UIScrollView *)scrollView -{ - if (barmode == BARMODE_MAIN) - [self hideNavigationBar]; -} - -- (void) scrollViewDidScroll: (UIScrollView*)scrollview -{ - // scrollViewDidScroll seems to get called part way through a screen rotation. - // (This is possibly a UIScrollView bug - see - // http://stackoverflow.com/questions/4123991/uiscrollview-disable-scrolling-while-rotating-on-iphone-ipad/8141423#8141423 ). - // This ends up corrupting the current page number, because the calculation - // 'current = x / width' is using the new value of 'width' before the - // pages have been resized/repositioned. To avoid this problem, we filter out - // calls to scrollViewDidScroll during rotation. - if (_isRotating) - return; - - if (width == 0) - return; // not visible yet - - if (scroll_animating) - return; // don't mess with layout during animations - - float x = canvas.contentOffset.x + width * 0.5f; - current = x / width; - - [[NSUserDefaults standardUserDefaults] setInteger: current forKey: key]; - - indicator.text = [NSString stringWithFormat: @" %d of %d ", current+1, fz_count_pages(ctx, doc)]; - slider.value = current; - - // swap the distant page views out - - NSMutableSet *invisiblePages = [[NSMutableSet alloc] init]; - for (UIView<MuPageView> *view in canvas.subviews) { - if (view.number != current) - [view resetZoomAnimated: YES]; - if (view.number < current - 2 || view.number > current + 2) - [invisiblePages addObject: view]; - } - for (UIView<MuPageView> *view in invisiblePages) - [view removeFromSuperview]; - [invisiblePages release]; // don't bother recycling them... - - [self createPageView: current]; - [self createPageView: current - 1]; - [self createPageView: current + 1]; - - // reset search results when page has flipped - if (current != searchPage) - [self resetSearch]; -} - -- (void) createPageView: (int)number -{ - if (number < 0 || number >= fz_count_pages(ctx, doc)) - return; - int found = 0; - for (UIView<MuPageView> *view in canvas.subviews) - if (view.number == number) - found = 1; - if (!found) { - UIView<MuPageView> *view - = reflowMode - ? [[MuPageViewReflow alloc] initWithFrame:CGRectMake(number * width, 0, width-GAP, height) document:docRef page:number] - : [[MuPageViewNormal alloc] initWithFrame:CGRectMake(number * width, 0, width-GAP, height) dialogCreator:self updater:self document:docRef page:number]; - [view setScale:scale]; - [canvas addSubview: view]; - if (showLinks) - [view showLinks]; - [view release]; - } -} - -- (void) gotoPage: (int)number animated: (BOOL)animated -{ - if (number < 0) - number = 0; - if (number >= fz_count_pages(ctx, doc)) - number = fz_count_pages(ctx, doc) - 1; - if (current == number) - return; - if (animated) { - // setContentOffset:animated: does not use the normal animation - // framework. It also doesn't play nice with the tap gesture - // recognizer. So we do our own page flipping animation here. - // We must set the scroll_animating flag so that we don't create - // or remove subviews until after the animation, or they'll - // swoop in from origo during the animation. - - scroll_animating = YES; - [UIView beginAnimations: @"MuScroll" context: NULL]; - [UIView setAnimationDuration: 0.4]; - [UIView setAnimationBeginsFromCurrentState: YES]; - [UIView setAnimationDelegate: self]; - [UIView setAnimationDidStopSelector: @selector(onGotoPageFinished)]; - - for (UIView<MuPageView> *view in canvas.subviews) - [view resetZoomAnimated: NO]; - - canvas.contentOffset = CGPointMake(number * width, 0); - slider.value = number; - indicator.text = [NSString stringWithFormat: @" %d of %d ", number+1, fz_count_pages(ctx, doc)]; - - [UIView commitAnimations]; - } else { - for (UIView<MuPageView> *view in canvas.subviews) - [view resetZoomAnimated: NO]; - canvas.contentOffset = CGPointMake(number * width, 0); - } - current = number; -} - -- (void) invokeTextDialog:(NSString *)aString okayAction:(void (^)(NSString *))block -{ - MuTextFieldController *tf = [[MuTextFieldController alloc] initWithText:aString okayAction:block]; - tf.modalPresentationStyle = UIModalPresentationFormSheet; - [self presentViewController:tf animated:YES completion:nil]; - [tf release]; -} - -- (void) invokeChoiceDialog:(NSArray *)anArray okayAction:(void (^)(NSArray *))block -{ - MuChoiceFieldController *cf = [[MuChoiceFieldController alloc] initWithChoices:anArray okayAction:block]; - cf.modalPresentationStyle = UIModalPresentationFormSheet; - [self presentViewController:cf animated:YES completion:nil]; - [cf release]; -} - -- (void) onGotoPageFinished -{ - scroll_animating = NO; - [self scrollViewDidScroll: canvas]; -} - -- (BOOL) shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)o -{ - return YES; -} - -- (void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration -{ - _isRotating = YES; -} - -- (void) didRotateFromInterfaceOrientation: (UIInterfaceOrientation)o -{ - _isRotating = NO; - - // We need to set these here, because during the animation we may use a wider - // size (the maximum of the landscape/portrait widths), to avoid clipping during - // the rotation. - canvas.contentSize = CGSizeMake(fz_count_pages(ctx, doc) * width, height); - canvas.contentOffset = CGPointMake(current * width, 0); -} - -@end |