Annotation of chimera/BookmarksService.mm, revision 1.9

1.1       hyatt       1: /*
                      2:  *  BookmarksService.cpp
                      3:  *  Chimera
                      4:  *
                      5:  *  Created by David Hyatt on Thu Feb 07 2002.
                      6:  *  Copyright (c) 2001 __MyCompanyName__. All rights reserved.
                      7:  *
                      8:  */
                      9: 
                     10: #import "NSBrowserView.h"
                     11: #include "BookmarksService.h"
                     12: #include "nsIDocument.h"
                     13: #include "nsIContent.h"
                     14: #include "nsIAtom.h"
                     15: #include "nsITextContent.h"
1.5       hyatt      16: #include "nsIDOMWindow.h"
                     17: #include "nsIDOMHTMLDocument.h"
1.1       hyatt      18: #include "nsIDOMElement.h"
                     19: #include "nsString.h"
                     20: #include "nsIFile.h"
                     21: #include "nsAppDirectoryServiceDefs.h"
                     22: #include "nsIXMLHttpRequest.h"
1.6       hyatt      23: #include "nsIDOMSerializer.h"
1.1       hyatt      24: #include "nsNetUtil.h"
                     25: #include "nsINamespaceManager.h"
                     26: #include "nsIXBLService.h"
1.5       hyatt      27: #include "nsIWebBrowser.h"
1.1       hyatt      28: 
                     29: @implementation BookmarksDataSource
                     30: 
                     31: -(id) init
                     32: {
                     33:     [super init];
                     34:     mBookmarks = nsnull;
                     35:     return self;
                     36: }
                     37: 
                     38: -(void) dealloc
                     39: {
                     40:     [super dealloc];
1.5       hyatt      41: }
                     42: 
                     43: -(void) windowClosing
                     44: {
                     45:     if (mBookmarks) {
1.4       hyatt      46:         mBookmarks->RemoveObserver();
1.5       hyatt      47:         delete mBookmarks;
                     48:     }
1.1       hyatt      49: }
                     50: 
                     51: -(void) ensureBookmarks
                     52: {
                     53:     if (mBookmarks)
                     54:         return;
                     55:     
1.5       hyatt      56:     mBookmarks = new BookmarksService(self);
1.4       hyatt      57:     mBookmarks->AddObserver();
1.1       hyatt      58:     
                     59:     [mOutlineView setTarget: self];
                     60:     [mOutlineView setDoubleAction: @selector(openBookmark:)];
                     61:     [mOutlineView reloadData];
                     62: }
                     63: 
1.2       hyatt      64: -(IBAction)addBookmark:(id)aSender
                     65: {
                     66:     if (!mBookmarks)
                     67:         return;
1.5       hyatt      68:     
1.2       hyatt      69:     nsCOMPtr<nsIContent> content;
                     70:     int index = [mOutlineView selectedRow];
1.5       hyatt      71:    
1.7       hyatt      72:     if (index >= 0) {
1.2       hyatt      73:         BookmarkItem* item = [mOutlineView itemAtRow: index];
1.5       hyatt      74:         if ([mOutlineView isExpandable: item]) 
1.2       hyatt      75:             content = [item contentNode];
                     76:     }
                     77:     
                     78:     if (!content)
                     79:         mBookmarks->GetRootContent(getter_AddRefs(content));
                     80:         
1.5       hyatt      81:     nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(mBookmarks->gBookmarks));
1.2       hyatt      82:     nsCOMPtr<nsIDOMElement> elt;
                     83:     domDoc->CreateElementNS(NS_LITERAL_STRING("http://chimera.mozdev.org/bookmarks"), 
                     84:                             NS_LITERAL_STRING("bookmark"), 
                     85:                             getter_AddRefs(elt));
                     86:     
1.5       hyatt      87:     // Fetch the title of the current page and the URL.
                     88:     nsCOMPtr<nsIWebBrowser> webBrowser = getter_AddRefs([[mBrowserView getBrowserView] getWebBrowser]);
                     89:     nsCOMPtr<nsIDOMWindow> window;
                     90:     webBrowser->GetContentDOMWindow(getter_AddRefs(window));
                     91:     nsCOMPtr<nsIDOMDocument> htmlDoc;
                     92:     window->GetDocument(getter_AddRefs(htmlDoc));
                     93:     nsCOMPtr<nsIDocument> pageDoc(do_QueryInterface(htmlDoc));
                     94:     
                     95:     nsAutoString href; 
                     96:     if (pageDoc) {
                     97:         nsCOMPtr<nsIURI> url;
                     98:         pageDoc->GetDocumentURL(getter_AddRefs(url));
                     99:         nsXPIDLCString spec;
                    100:         url->GetSpec(getter_Copies(spec));
                    101:         href.AssignWithConversion(spec.get());
                    102:     }
                    103:     
                    104:     nsAutoString title;
                    105:     nsCOMPtr<nsIDOMHTMLDocument> htmlDocument(do_QueryInterface(htmlDoc));
                    106:     if (htmlDocument)
                    107:         htmlDocument->GetTitle(title);
                    108:     if (title.IsEmpty())
                    109:         title = href;
                    110:         
                    111:     elt->SetAttribute(NS_LITERAL_STRING("name"), title);
                    112:     elt->SetAttribute(NS_LITERAL_STRING("href"), href);    
1.2       hyatt     113:     
                    114:     nsCOMPtr<nsIDOMElement> parent(do_QueryInterface(content));
                    115:     nsCOMPtr<nsIDOMNode> dummy;
                    116:     parent->AppendChild(elt, getter_AddRefs(dummy));
1.5       hyatt     117: 
                    118:     mBookmarks->NotifyObservers(content, PR_TRUE);
1.2       hyatt     119: }
                    120: 
                    121: -(IBAction)deleteBookmark: (id)aSender
                    122: {
1.6       hyatt     123:     if (!mBookmarks)
                    124:         return;
                    125:     
                    126:     int index = [mOutlineView selectedRow];
                    127:     if (index == -1)
                    128:         return;
                    129:         
                    130:     BookmarkItem* item = [mOutlineView itemAtRow: index];
                    131:     nsCOMPtr<nsIContent> content = [item contentNode];
                    132:     nsCOMPtr<nsIDOMElement> child(do_QueryInterface(content));
                    133:     nsCOMPtr<nsIDOMNode> parent;
                    134:     child->GetParentNode(getter_AddRefs(parent));
                    135:     nsCOMPtr<nsIDOMNode> dummy;
                    136:     parent->RemoveChild(child, getter_AddRefs(dummy));
                    137:     nsCOMPtr<nsIContent> parentContent(do_QueryInterface(parent));
                    138:     mBookmarks->NotifyObservers(parentContent, PR_TRUE);
                    139:     
                    140:     int total = [mOutlineView numberOfRows];
                    141:     if (index == total)
                    142:         index--;
                    143:         
                    144:     [mOutlineView selectRow: index byExtendingSelection: NO];
1.2       hyatt     145: }
                    146: 
1.1       hyatt     147: -(IBAction)openBookmark: (id)aSender
                    148: {
                    149:     int index = [mOutlineView selectedRow];
                    150:     if (index == -1)
                    151:         return;
                    152:     
                    153:     id item = [mOutlineView itemAtRow: index];
                    154:     if (!item)
                    155:         return;
                    156:         
                    157:     if ([mOutlineView isExpandable: item]) {
                    158:         if ([mOutlineView isItemExpanded: item])
                    159:             [mOutlineView collapseItem: item];
                    160:         else
                    161:             [mOutlineView expandItem: item];
                    162:     }
                    163:     else {
                    164:         nsIContent* content = [item contentNode];
                    165:         nsAutoString href;
                    166:         content->GetAttr(kNameSpaceID_None, BookmarksService::gHrefAtom, href);
                    167:         if (!href.IsEmpty()) {
                    168:             nsCAutoString cstr; cstr.AssignWithConversion(href);
                    169:             NSString* url = [NSString stringWithCString: cstr.get()];
                    170:             [[mBrowserView getBrowserView] loadURI:[NSURL URLWithString: url] flags:NSLoadFlagsNone];
                    171:         }
                    172:     } 
                    173: }
                    174: 
1.9     ! hyatt     175: - (BOOL)outlineView:(NSOutlineView *)outlineView shouldEditTableColumn:(NSTableColumn *)tableColumn item:(id)item
        !           176: {
        !           177:     if (!mBookmarks)
        !           178:         return NO;
        !           179:         
        !           180:     return YES;
        !           181: }
        !           182: 
1.1       hyatt     183: - (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item
                    184: {
                    185:     if (!mBookmarks)
                    186:         return nil;
                    187:        
                    188:     nsCOMPtr<nsIContent> content;
                    189:     if (!item)
                    190:         mBookmarks->GetRootContent(getter_AddRefs(content));
                    191:     else
                    192:         content = [item contentNode];
                    193:     
                    194:     nsCOMPtr<nsIContent> child;
                    195:     content->ChildAt(index, *getter_AddRefs(child));
                    196:     return mBookmarks->GetWrapperFor(child);
                    197: }
                    198: 
                    199: - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item
                    200: {
                    201:     if (!mBookmarks)
                    202:         return NO;
                    203:     
                    204:     if (!item)
                    205:         return YES; // The root node is always open.
                    206:     
                    207:     nsCOMPtr<nsIAtom> tagName;
                    208:     nsIContent* content = [item contentNode];
                    209:     content->GetTag(*getter_AddRefs(tagName));
                    210:     
                    211:     return (tagName == BookmarksService::gFolderAtom);
                    212: }
                    213: 
                    214: - (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item
                    215: {
                    216:     if (!mBookmarks)
                    217:         return 0;
1.2       hyatt     218:   
1.1       hyatt     219:     nsCOMPtr<nsIContent> content;
                    220:     if (!item)
                    221:         mBookmarks->GetRootContent(getter_AddRefs(content));
                    222:     else 
                    223:         content = [item contentNode];
                    224:     
                    225:     PRInt32 childCount;
                    226:     content->ChildCount(childCount);
                    227:     
                    228:     return childCount;
                    229: }
                    230: 
                    231: - (id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
                    232: {
                    233:     if (!item)
                    234:         return nil;
                    235:     
                    236:     NSString* columnName = [tableColumn identifier];
                    237:       
                    238:     if ([columnName isEqualToString: @"name"]) {
                    239:         nsIContent* content = [item contentNode];
                    240:         nsAutoString nameAttr;
                    241:         content->GetAttr(kNameSpaceID_None, BookmarksService::gNameAtom, nameAttr);
                    242:         nsCAutoString cStr; cStr.AssignWithConversion(nameAttr);
                    243:         return [NSString stringWithCString: cStr.get()];
                    244:     }
                    245:     
                    246:     return nil;
                    247: }
                    248: 
                    249: - (void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
                    250: {
                    251: }
                    252: 
1.5       hyatt     253: - (void)reloadDataForItem:(id)item reloadChildren: (BOOL)aReloadChildren
                    254: {
                    255:     printf("Reloading?\n");
                    256:     if (!item)
                    257:         [mOutlineView reloadData];
                    258:     else if ([mOutlineView isItemExpanded: item])
                    259:         [mOutlineView reloadItem: item reloadChildren: aReloadChildren];
                    260: }
                    261: 
1.1       hyatt     262: @end
                    263: 
                    264: @implementation BookmarkItem
                    265: -(nsIContent*)contentNode
                    266: {
                    267:     return mContentNode;
                    268: }
                    269: 
                    270: -(void)setContentNode: (nsIContent*)aContentNode
                    271: {
                    272:     mContentNode = aContentNode;
                    273: }
1.7       hyatt     274: 
                    275: - (id)copyWithZone:(NSZone *)aZone
                    276: {
                    277:     BookmarkItem* copy = [[[self class] allocWithZone: aZone] init];
                    278:     [copy setContentNode: mContentNode];
                    279:     return copy;
                    280: }
                    281: 
1.1       hyatt     282: @end
                    283: 
                    284: // Helper for stripping whitespace
                    285: static void
                    286: StripWhitespaceNodes(nsIContent* aElement)
                    287: {
                    288:     PRInt32 childCount;
                    289:     aElement->ChildCount(childCount);
                    290:     for (PRInt32 i = 0; i < childCount; i++) {
                    291:         nsCOMPtr<nsIContent> child;
                    292:         aElement->ChildAt(i, *getter_AddRefs(child));
                    293:         nsCOMPtr<nsITextContent> text = do_QueryInterface(child);
                    294:         if (text) {
                    295:             PRBool isEmpty;
                    296:             text->IsOnlyWhitespace(&isEmpty);
                    297:             if (isEmpty) {
                    298:                 // This node contained nothing but whitespace.
                    299:                 // Remove it from the content model.
                    300:                 aElement->RemoveChildAt(i, PR_TRUE);
                    301:                 i--; // Decrement our count, since we just removed this child.
                    302:                 childCount--; // Also decrement our total count.
                    303:             }
                    304:         }
                    305:         else StripWhitespaceNodes(child);
                    306:     }
                    307: }
                    308: 
                    309: PRUint32 BookmarksService::gRefCnt = 0;
1.4       hyatt     310: nsIDocument* BookmarksService::gBookmarks = nsnull;
                    311: NSMutableDictionary* BookmarksService::gDictionary = nil;
1.8       hyatt     312: MainController* BookmarksService::gMainController = nil;
1.1       hyatt     313: nsIAtom* BookmarksService::gFolderAtom = nsnull;
                    314: nsIAtom* BookmarksService::gBookmarkAtom = nsnull;
                    315: nsIAtom* BookmarksService::gHrefAtom = nsnull;
                    316: nsIAtom* BookmarksService::gNameAtom = nsnull;
1.5       hyatt     317: nsVoidArray* BookmarksService::gInstances = nsnull;
1.1       hyatt     318: 
1.5       hyatt     319: BookmarksService::BookmarksService(BookmarksDataSource* aDataSource)
1.1       hyatt     320: {
1.5       hyatt     321:     mDataSource = aDataSource;
1.1       hyatt     322: }
                    323: 
                    324: BookmarksService::~BookmarksService()
                    325: {
                    326: }
                    327: 
                    328: void
                    329: BookmarksService::GetRootContent(nsIContent** aResult)
                    330: {
                    331:     *aResult = nsnull;
1.4       hyatt     332:     if (gBookmarks) {
1.1       hyatt     333:         nsCOMPtr<nsIDOMElement> elt;
1.4       hyatt     334:         nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(gBookmarks));
1.1       hyatt     335:         domDoc->GetDocumentElement(getter_AddRefs(elt));
                    336:         elt->QueryInterface(NS_GET_IID(nsIContent), (void**)aResult); // Addref happens here.
                    337:     }
                    338: }
                    339: 
                    340: BookmarkItem*
                    341: BookmarksService::GetWrapperFor(nsIContent* aContent)
                    342: {
1.4       hyatt     343:     if (!gDictionary)
                    344:         gDictionary = [[NSMutableDictionary alloc] initWithCapacity: 30];
1.1       hyatt     345:     
                    346:     PRUint32 contentID;
                    347:     aContent->GetContentID(&contentID);
                    348:     
1.4       hyatt     349:     BookmarkItem* item = [gDictionary objectForKey: [NSNumber numberWithInt: contentID]];
1.1       hyatt     350:     if (item)
                    351:         return item;
                    352:     else {
                    353:         // Create an item.
                    354:         item = [[[BookmarkItem alloc] init] autorelease]; // The dictionary retains us.
                    355:         [item setContentNode: aContent];
1.4       hyatt     356:         [gDictionary setObject: item forKey: [NSNumber numberWithInt: contentID]];
1.1       hyatt     357:     }
                    358:     return item;
                    359: }
                    360: 
1.5       hyatt     361: void
                    362: BookmarksService::NotifyObservers(nsIContent* aContainer, PRBool aReloadChildren)
1.4       hyatt     363: {
1.5       hyatt     364:     if (!gInstances)
                    365:         return;
                    366:     
                    367:     PRInt32 count = gInstances->Count();
                    368:     for (PRInt32 i = 0; i < count; i++) {
                    369:         BookmarksService* instance = (BookmarksService*)gInstances->ElementAt(i);
                    370:         instance->NotifyObserver(aContainer, aReloadChildren);
                    371:     }
1.6       hyatt     372:     
                    373:     FlushBookmarks();
1.4       hyatt     374: }
                    375: 
                    376: 
1.5       hyatt     377: void
                    378: BookmarksService::NotifyObserver(nsIContent* aContainer, PRBool aReloadChildren)
1.4       hyatt     379: {
1.5       hyatt     380:     if (!gDictionary)
                    381:         return;
1.6       hyatt     382:    
1.5       hyatt     383:     nsCOMPtr<nsIContent> parent;
                    384:     aContainer->GetParent(*getter_AddRefs(parent));
                    385:     
                    386:     BookmarkItem* item = nil;
                    387:     if (parent)
                    388:         // We're not the root.
                    389:         item = GetWrapperFor(aContainer);
                    390:     
                    391:     [mDataSource reloadDataForItem: item reloadChildren: aReloadChildren];
1.4       hyatt     392: }
                    393: 
                    394: void
                    395: BookmarksService::AddObserver()
1.1       hyatt     396: {
                    397:     gRefCnt++;
                    398:     if (gRefCnt == 1) {
                    399:         gBookmarkAtom = NS_NewAtom("bookmark");
                    400:         gFolderAtom = NS_NewAtom("folder");
                    401:         gNameAtom = NS_NewAtom("name");
                    402:         gHrefAtom = NS_NewAtom("href");
1.5       hyatt     403:         gInstances = new nsVoidArray();
1.8       hyatt     404:                 
1.4       hyatt     405:         nsCOMPtr<nsIFile> profileDir;
                    406:         NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(profileDir));
                    407:         profileDir->Append("bookmarks.xml");
                    408:     
                    409:         nsXPIDLCString bookmarksFileURL;
                    410:         NS_GetURLSpecFromFile(profileDir, getter_Copies(bookmarksFileURL));
                    411:         
                    412:         nsCOMPtr<nsIURI> uri;
                    413:         NS_NewURI(getter_AddRefs(uri), bookmarksFileURL.get());
                    414:     
                    415:         nsCOMPtr<nsIXBLService> xblService(do_GetService("@mozilla.org/xbl;1"));    
                    416:         xblService->FetchSyncXMLDocument(uri, &gBookmarks); // The addref is here.
                    417:         
                    418:         nsCOMPtr<nsIContent> rootNode;
                    419:         GetRootContent(getter_AddRefs(rootNode));
                    420:         StripWhitespaceNodes(rootNode);
1.1       hyatt     421:     }
                    422:     
1.5       hyatt     423:     gInstances->AppendElement(this);
1.1       hyatt     424: }
                    425: 
                    426: void
1.4       hyatt     427: BookmarksService::RemoveObserver()
1.1       hyatt     428: {
                    429:     if (gRefCnt == 0)
                    430:         return;
1.4       hyatt     431:  
1.5       hyatt     432:     gInstances->RemoveElement(this);
                    433:      
1.1       hyatt     434:     gRefCnt--;
                    435:     if (gRefCnt == 0) {
1.4       hyatt     436:         NS_IF_RELEASE(gBookmarks);
1.1       hyatt     437:         NS_RELEASE(gBookmarkAtom);
                    438:         NS_RELEASE(gFolderAtom);
                    439:         NS_RELEASE(gNameAtom);
                    440:         NS_RELEASE(gHrefAtom);
1.4       hyatt     441:         [gDictionary release];
1.1       hyatt     442:     }
                    443: }
                    444: 
1.6       hyatt     445: void
                    446: BookmarksService::FlushBookmarks()
                    447: {
                    448:     nsCOMPtr<nsIFile> bookmarksFile;
                    449:     NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(bookmarksFile));
                    450:     bookmarksFile->Append("bookmarks.xml");
                    451: 
                    452:     nsCOMPtr<nsIOutputStream> outputStream;
                    453:     NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), bookmarksFile);
                    454: 
                    455:     nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(gBookmarks));
                    456:     
                    457:     nsCOMPtr<nsIDOMSerializer> domSerializer(do_CreateInstance(NS_XMLSERIALIZER_CONTRACTID));
                    458:     domSerializer->SerializeToStream(domDoc, outputStream, nsnull);
1.7       hyatt     459: }
                    460: 
                    461: void
                    462: BookmarksService::ConstructBookmarksMenu(NSMenu* aMenu, nsIContent* aContent)
                    463: {
                    464:     nsCOMPtr<nsIContent> content = aContent;
                    465:     if (!content) {
                    466:         GetRootContent(getter_AddRefs(content));
1.8       hyatt     467:         GetWrapperFor(content);
1.7       hyatt     468:     }
                    469:     
                    470:     // Now walk our children, and for folders also recur into them.
                    471:     PRInt32 childCount;
                    472:     content->ChildCount(childCount);
                    473:     
                    474:     for (PRInt32 i = 0; i < childCount; i++) {
                    475:         nsCOMPtr<nsIContent> child;
                    476:         content->ChildAt(i, *getter_AddRefs(child));
                    477:         
                    478:         // Obtain our name attribute.
                    479:         nsAutoString name;
                    480:         child->GetAttr(kNameSpaceID_None, gNameAtom, name);
                    481:         nsCAutoString nameCStr; nameCStr.AssignWithConversion(name);
                    482:         NSString* title = [NSString stringWithCString: nameCStr.get()];
                    483:                 
                    484:         // Create a menu or menu item for the child.
1.8       hyatt     485:         NSMenuItem* menuItem = [[[NSMenuItem alloc] initWithTitle: title action: NULL keyEquivalent: @""] autorelease];
                    486:         GetWrapperFor(child);
                    487:         [aMenu addItem: menuItem];
                    488:         
1.7       hyatt     489:         nsCOMPtr<nsIAtom> tag;
1.8       hyatt     490:         child->GetTag(*getter_AddRefs(tag));
                    491:         
1.7       hyatt     492:         if (tag == gFolderAtom) {
                    493:             NSMenu* menu = [[[NSMenu alloc] initWithTitle: title] autorelease];
1.8       hyatt     494:             [aMenu setSubmenu: menu forItem: menuItem];
                    495:             [menu setAutoenablesItems: NO];
1.7       hyatt     496:             ConstructBookmarksMenu(menu, child);
                    497:         }
                    498:         else {
1.8       hyatt     499:             [menuItem setTarget: gMainController];
                    500:             [menuItem setAction: @selector(openMenuBookmark:)];
1.7       hyatt     501:         }
1.8       hyatt     502:         
                    503:         PRUint32 contentID;
                    504:         child->GetContentID(&contentID);
                    505:         [menuItem setTag: contentID];
1.7       hyatt     506:     }
1.6       hyatt     507: }
1.8       hyatt     508: 
                    509: void 
                    510: BookmarksService::OpenMenuBookmark(BrowserWindowController* aController, id aMenuItem)
                    511: {
                    512:     // Get the corresponding bookmark item.
                    513:     BookmarkItem* item = [gDictionary objectForKey: [NSNumber numberWithInt: [aMenuItem tag]]];
                    514:         
                    515:     // Get the content node.
                    516:     nsIContent* content = [item contentNode];
                    517:         
                    518:     // Get the href attribute.  This is the URL we want to load.
                    519:     nsAutoString href;
                    520:     content->GetAttr(kNameSpaceID_None, gHrefAtom, href);
                    521:     nsCAutoString cref; cref.AssignWithConversion(href);
                    522:     if (cref.IsEmpty())
                    523:         return;
                    524:         
                    525:     NSString* url = [NSString stringWithCString: cref.get()];
                    526:     
                    527:     // Now load the URL in the window.
                    528:     [aController loadURL:[NSURL URLWithString: url]];
                    529: }

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