WebKit/mac/WebView/WebHTMLRepresentation.mm
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/WebView/WebHTMLRepresentation.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,378 @@
+/*
+ * Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "WebHTMLRepresentation.h"
+
+#import "DOMElementInternal.h"
+#import "DOMNodeInternal.h"
+#import "DOMRangeInternal.h"
+#import "WebArchive.h"
+#import "WebBasePluginPackage.h"
+#import "WebDataSourceInternal.h"
+#import "WebDocumentPrivate.h"
+#import "WebFrameInternal.h"
+#import "WebKitNSStringExtras.h"
+#import "WebKitStatisticsPrivate.h"
+#import "WebNSAttributedStringExtras.h"
+#import "WebNSObjectExtras.h"
+#import "WebTypesInternal.h"
+#import "WebView.h"
+#import <Foundation/NSURLResponse.h>
+#import <WebCore/Document.h>
+#import <WebCore/DocumentLoader.h>
+#import <WebCore/Frame.h>
+#import <WebCore/FrameLoader.h>
+#import <WebCore/FrameLoaderClient.h>
+#import <WebCore/HTMLFormControlElement.h>
+#import <WebCore/HTMLFormElement.h>
+#import <WebCore/HTMLInputElement.h>
+#import <WebCore/HTMLNames.h>
+#import <WebCore/MIMETypeRegistry.h>
+#import <WebCore/Range.h>
+#import <WebCore/TextResourceDecoder.h>
+#import <WebKit/DOMHTMLInputElement.h>
+#import <wtf/Assertions.h>
+#import <wtf/StdLibExtras.h>
+
+using namespace WebCore;
+using namespace HTMLNames;
+
+@interface WebHTMLRepresentationPrivate : NSObject {
+@public
+    WebDataSource *dataSource;
+    
+    BOOL hasSentResponseToPlugin;
+    BOOL includedInWebKitStatistics;
+
+    id <WebPluginManualLoader> manualLoader;
+    NSView *pluginView;
+}
+@end
+
+@implementation WebHTMLRepresentationPrivate
+@end
+
+@implementation WebHTMLRepresentation
+
+static NSArray *stringArray(const HashSet<String>& set)
+{
+    NSMutableArray *array = [NSMutableArray arrayWithCapacity:set.size()];
+    HashSet<String>::const_iterator end = set.end();
+    for (HashSet<String>::const_iterator it = set.begin(); it != end; ++it)
+        [array addObject:(NSString *)(*it)];
+    return array;
+}
+
+static NSArray *concatenateArrays(NSArray *first, NSArray *second)
+{
+    NSMutableArray *result = [[first mutableCopy] autorelease];
+    [result addObjectsFromArray:second];
+    return result;
+}
+
++ (NSArray *)supportedMIMETypes
+{
+    DEFINE_STATIC_LOCAL(RetainPtr<NSArray>, staticSupportedMIMETypes, (concatenateArrays([self supportedNonImageMIMETypes], [self supportedImageMIMETypes])));
+    return staticSupportedMIMETypes.get();
+}
+
++ (NSArray *)supportedNonImageMIMETypes
+{
+    DEFINE_STATIC_LOCAL(RetainPtr<NSArray>, staticSupportedNonImageMIMETypes, (stringArray(MIMETypeRegistry::getSupportedNonImageMIMETypes())));
+    return staticSupportedNonImageMIMETypes.get();
+}
+
++ (NSArray *)supportedImageMIMETypes
+{
+    DEFINE_STATIC_LOCAL(RetainPtr<NSArray>, staticSupportedImageMIMETypes, (stringArray(MIMETypeRegistry::getSupportedImageMIMETypes())));
+    return staticSupportedImageMIMETypes.get();
+}
+
+- (id)init
+{
+    self = [super init];
+    if (!self)
+        return nil;
+    
+    _private = [[WebHTMLRepresentationPrivate alloc] init];
+
+    return self;
+}
+
+- (void)dealloc
+{
+    if (_private && _private->includedInWebKitStatistics)
+        --WebHTMLRepresentationCount;
+
+    [_private release];
+
+    [super dealloc];
+}
+
+- (void)finalize
+{
+    if (_private && _private->includedInWebKitStatistics)
+        --WebHTMLRepresentationCount;
+
+    [super finalize];
+}
+
+- (void)_redirectDataToManualLoader:(id<WebPluginManualLoader>)manualLoader forPluginView:(NSView *)pluginView
+{
+    _private->manualLoader = manualLoader;
+    _private->pluginView = pluginView;
+}
+
+- (void)setDataSource:(WebDataSource *)dataSource
+{
+    _private->dataSource = dataSource;
+
+    if (!_private->includedInWebKitStatistics && [[dataSource webFrame] _isIncludedInWebKitStatistics]) {
+        _private->includedInWebKitStatistics = YES;
+        ++WebHTMLRepresentationCount;
+    }
+}
+
+- (BOOL)_isDisplayingWebArchive
+{
+    return [[_private->dataSource _responseMIMEType] _webkit_isCaseInsensitiveEqualToString:@"application/x-webarchive"];
+}
+
+- (void)receivedData:(NSData *)data withDataSource:(WebDataSource *)dataSource
+{
+    WebFrame *webFrame = [dataSource webFrame];
+    if (webFrame) {
+        if (!_private->pluginView)
+            [webFrame _receivedData:data textEncodingName:[[_private->dataSource response] textEncodingName]];
+        
+        // If the document is a stand-alone media document, now is the right time to cancel the WebKit load
+        Frame* coreFrame = core(webFrame);
+        if (coreFrame->document() && coreFrame->document()->isMediaDocument())
+            coreFrame->loader()->documentLoader()->cancelMainResourceLoad(coreFrame->loader()->client()->pluginWillHandleLoadError(coreFrame->loader()->documentLoader()->response()));
+
+        if (_private->pluginView) {
+            if (!_private->hasSentResponseToPlugin) {
+                [_private->manualLoader pluginView:_private->pluginView receivedResponse:[dataSource response]];
+                _private->hasSentResponseToPlugin = YES;
+            }
+            
+            [_private->manualLoader pluginView:_private->pluginView receivedData:data];
+        }
+    }
+}
+
+- (void)receivedError:(NSError *)error withDataSource:(WebDataSource *)dataSource
+{
+    if (_private->pluginView) {
+        [_private->manualLoader pluginView:_private->pluginView receivedError:error];
+    }
+}
+
+- (void)finishedLoadingWithDataSource:(WebDataSource *)dataSource
+{
+    WebFrame *frame = [dataSource webFrame];
+
+    if (_private->pluginView) {
+        [_private->manualLoader pluginViewFinishedLoading:_private->pluginView];
+        return;
+    }
+
+    if (frame) {
+        if (![self _isDisplayingWebArchive]) {
+            // Telling the frame we received some data and passing nil as the data is our
+            // way to get work done that is normally done when the first bit of data is
+            // received, even for the case of a document with no data (like about:blank).
+            [frame _receivedData:nil textEncodingName:[[_private->dataSource response] textEncodingName]];
+        }
+        
+        WebView *webView = [frame webView];
+        if ([webView isEditable])
+            core(frame)->applyEditingStyleToBodyElement();
+    }
+}
+
+- (BOOL)canProvideDocumentSource
+{
+    return [[_private->dataSource webFrame] _canProvideDocumentSource];
+}
+
+- (BOOL)canSaveAsWebArchive
+{
+    return [[_private->dataSource webFrame] _canSaveAsWebArchive];
+}
+
+- (NSString *)documentSource
+{
+    if ([self _isDisplayingWebArchive]) {            
+        SharedBuffer *parsedArchiveData = [_private->dataSource _documentLoader]->parsedArchiveData();
+        NSData *nsData = parsedArchiveData ? parsedArchiveData->createNSData() : nil;
+        NSString *result = [[NSString alloc] initWithData:nsData encoding:NSUTF8StringEncoding];
+        [nsData release];
+        return [result autorelease];
+    }
+
+    Frame* coreFrame = core([_private->dataSource webFrame]);
+    if (!coreFrame)
+        return nil;
+    Document* document = coreFrame->document();
+    if (!document)
+        return nil;
+    TextResourceDecoder* decoder = document->decoder();
+    if (!decoder)
+        return nil;
+    NSData *data = [_private->dataSource data];
+    if (!data)
+        return nil;
+    return decoder->encoding().decode(reinterpret_cast<const char*>([data bytes]), [data length]);
+}
+
+- (NSString *)title
+{
+    return nsStringNilIfEmpty([_private->dataSource _documentLoader]->title());
+}
+
+- (DOMDocument *)DOMDocument
+{
+    return [[_private->dataSource webFrame] DOMDocument];
+}
+
+- (NSAttributedString *)attributedText
+{
+    // FIXME: Implement
+    return nil;
+}
+
+- (NSAttributedString *)attributedStringFrom:(DOMNode *)startNode startOffset:(int)startOffset to:(DOMNode *)endNode endOffset:(int)endOffset
+{
+    return [NSAttributedString _web_attributedStringFromRange:Range::create(core(startNode)->document(), core(startNode), startOffset, core(endNode), endOffset).get()];
+}
+
+static HTMLFormElement* formElementFromDOMElement(DOMElement *element)
+{
+    Element* node = core(element);
+    return node && node->hasTagName(formTag) ? static_cast<HTMLFormElement*>(node) : 0;
+}
+
+- (DOMElement *)elementWithName:(NSString *)name inForm:(DOMElement *)form
+{
+    HTMLFormElement* formElement = formElementFromDOMElement(form);
+    if (!formElement)
+        return nil;
+    const Vector<HTMLFormControlElement*>& elements = formElement->associatedElements();
+    AtomicString targetName = name;
+    for (unsigned i = 0; i < elements.size(); i++) {
+        HTMLFormControlElement* elt = elements[i];
+        if (elt->name() == targetName)
+            return kit(elt);
+    }
+    return nil;
+}
+
+static HTMLInputElement* inputElementFromDOMElement(DOMElement* element)
+{
+    Element* node = core(element);
+    return node && node->hasTagName(inputTag) ? static_cast<HTMLInputElement*>(node) : 0;
+}
+
+- (BOOL)elementDoesAutoComplete:(DOMElement *)element
+{
+    HTMLInputElement* inputElement = inputElementFromDOMElement(element);
+    return inputElement
+        && inputElement->isTextField()
+        && inputElement->inputType() != HTMLInputElement::PASSWORD
+        && inputElement->autoComplete();
+}
+
+- (BOOL)elementIsPassword:(DOMElement *)element
+{
+    HTMLInputElement* inputElement = inputElementFromDOMElement(element);
+    return inputElement
+        && inputElement->inputType() == HTMLInputElement::PASSWORD;
+}
+
+- (DOMElement *)formForElement:(DOMElement *)element
+{
+    HTMLInputElement* inputElement = inputElementFromDOMElement(element);
+    return inputElement ? kit(inputElement->form()) : 0;
+}
+
+- (DOMElement *)currentForm
+{
+    return kit(core([_private->dataSource webFrame])->currentForm());
+}
+
+- (NSArray *)controlsInForm:(DOMElement *)form
+{
+    HTMLFormElement* formElement = formElementFromDOMElement(form);
+    if (!formElement)
+        return nil;
+    NSMutableArray *results = nil;
+    const Vector<HTMLFormControlElement*>& elements = formElement->associatedElements();
+    for (unsigned i = 0; i < elements.size(); i++) {
+        if (elements[i]->isEnumeratable()) { // Skip option elements, other duds
+            DOMElement* de = kit(elements[i]);
+            if (!results)
+                results = [NSMutableArray arrayWithObject:de];
+            else
+                [results addObject:de];
+        }
+    }
+    return results;
+}
+
+- (NSString *)searchForLabels:(NSArray *)labels beforeElement:(DOMElement *)element
+{
+    return [self searchForLabels:labels beforeElement:element resultDistance:0 resultIsInCellAbove:0];
+}
+
+- (NSString *)searchForLabels:(NSArray *)labels beforeElement:(DOMElement *)element resultDistance:(NSUInteger*)outDistance resultIsInCellAbove:(BOOL*)outIsInCellAbove
+{
+    size_t distance;
+    bool isInCellAbove;
+    
+    NSString *result = core([_private->dataSource webFrame])->searchForLabelsBeforeElement(labels, core(element), &distance, &isInCellAbove);
+    
+    if (outDistance) {
+        if (distance == notFound)
+            *outDistance = NSNotFound;
+        else
+            *outDistance = distance;
+    }
+
+    if (outIsInCellAbove)
+        *outIsInCellAbove = isInCellAbove;
+    
+    return result;
+}
+
+- (NSString *)matchLabels:(NSArray *)labels againstElement:(DOMElement *)element
+{
+    return core([_private->dataSource webFrame])->matchLabelsAgainstElement(labels, core(element));
+}
+
+@end