| /* |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All |
| * rights reserved. |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "core/html/forms/FileInputType.h" |
| |
| #include "bindings/core/v8/ExceptionStatePlaceholder.h" |
| #include "core/HTMLNames.h" |
| #include "core/InputTypeNames.h" |
| #include "core/dom/StyleChangeReason.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/events/Event.h" |
| #include "core/fileapi/File.h" |
| #include "core/fileapi/FileList.h" |
| #include "core/frame/UseCounter.h" |
| #include "core/html/FormData.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/forms/FormController.h" |
| #include "core/layout/LayoutFileUploadControl.h" |
| #include "core/page/ChromeClient.h" |
| #include "core/page/DragData.h" |
| #include "platform/FileMetadata.h" |
| #include "platform/RuntimeEnabledFeatures.h" |
| #include "platform/UserGestureIndicator.h" |
| #include "platform/text/PlatformLocale.h" |
| #include "wtf/text/StringBuilder.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| using blink::WebLocalizedString; |
| using namespace HTMLNames; |
| |
| inline FileInputType::FileInputType(HTMLInputElement& element) |
| : InputType(element), |
| KeyboardClickableInputTypeView(element), |
| m_fileList(FileList::create()) {} |
| |
| InputType* FileInputType::create(HTMLInputElement& element) { |
| return new FileInputType(element); |
| } |
| |
| DEFINE_TRACE(FileInputType) { |
| visitor->trace(m_fileList); |
| KeyboardClickableInputTypeView::trace(visitor); |
| InputType::trace(visitor); |
| } |
| |
| InputTypeView* FileInputType::createView() { |
| return this; |
| } |
| |
| Vector<FileChooserFileInfo> FileInputType::filesFromFormControlState( |
| const FormControlState& state) { |
| Vector<FileChooserFileInfo> files; |
| for (size_t i = 0; i < state.valueSize(); i += 2) { |
| if (!state[i + 1].isEmpty()) |
| files.append(FileChooserFileInfo(state[i], state[i + 1])); |
| else |
| files.append(FileChooserFileInfo(state[i])); |
| } |
| return files; |
| } |
| |
| const AtomicString& FileInputType::formControlType() const { |
| return InputTypeNames::file; |
| } |
| |
| FormControlState FileInputType::saveFormControlState() const { |
| if (m_fileList->isEmpty()) |
| return FormControlState(); |
| FormControlState state; |
| unsigned numFiles = m_fileList->length(); |
| for (unsigned i = 0; i < numFiles; ++i) { |
| if (m_fileList->item(i)->hasBackingFile()) { |
| state.append(m_fileList->item(i)->path()); |
| state.append(m_fileList->item(i)->name()); |
| } |
| // FIXME: handle Blob-backed File instances, see http://crbug.com/394948 |
| } |
| return state; |
| } |
| |
| void FileInputType::restoreFormControlState(const FormControlState& state) { |
| if (state.valueSize() % 2) |
| return; |
| filesChosen(filesFromFormControlState(state)); |
| } |
| |
| void FileInputType::appendToFormData(FormData& formData) const { |
| FileList* fileList = element().files(); |
| unsigned numFiles = fileList->length(); |
| if (numFiles == 0) { |
| formData.append(element().name(), File::create("")); |
| return; |
| } |
| |
| for (unsigned i = 0; i < numFiles; ++i) |
| formData.append(element().name(), fileList->item(i)); |
| } |
| |
| bool FileInputType::valueMissing(const String& value) const { |
| return element().isRequired() && value.isEmpty(); |
| } |
| |
| String FileInputType::valueMissingText() const { |
| return locale().queryString( |
| element().multiple() |
| ? WebLocalizedString::ValidationValueMissingForMultipleFile |
| : WebLocalizedString::ValidationValueMissingForFile); |
| } |
| |
| void FileInputType::handleDOMActivateEvent(Event* event) { |
| if (element().isDisabledFormControl()) |
| return; |
| |
| if (!UserGestureIndicator::utilizeUserGesture()) |
| return; |
| |
| if (ChromeClient* chromeClient = this->chromeClient()) { |
| FileChooserSettings settings; |
| HTMLInputElement& input = element(); |
| settings.allowsDirectoryUpload = |
| input.fastHasAttribute(webkitdirectoryAttr); |
| settings.allowsMultipleFiles = |
| settings.allowsDirectoryUpload || input.fastHasAttribute(multipleAttr); |
| settings.acceptMIMETypes = input.acceptMIMETypes(); |
| settings.acceptFileExtensions = input.acceptFileExtensions(); |
| settings.selectedFiles = m_fileList->pathsForUserVisibleFiles(); |
| settings.useMediaCapture = RuntimeEnabledFeatures::mediaCaptureEnabled() && |
| input.fastHasAttribute(captureAttr); |
| chromeClient->openFileChooser(input.document().frame(), |
| newFileChooser(settings)); |
| } |
| event->setDefaultHandled(); |
| } |
| |
| LayoutObject* FileInputType::createLayoutObject(const ComputedStyle&) const { |
| return new LayoutFileUploadControl(&element()); |
| } |
| |
| bool FileInputType::canSetStringValue() const { |
| return false; |
| } |
| |
| FileList* FileInputType::files() { |
| return m_fileList.get(); |
| } |
| |
| bool FileInputType::canSetValue(const String& value) { |
| // For security reasons, we don't allow setting the filename, but we do allow |
| // clearing it. The HTML5 spec (as of the 10/24/08 working draft) says that |
| // the value attribute isn't applicable to the file upload control at all, but |
| // for now we are keeping this behavior to avoid breaking existing websites |
| // that may be relying on this. |
| return value.isEmpty(); |
| } |
| |
| bool FileInputType::getTypeSpecificValue(String& value) { |
| if (m_fileList->isEmpty()) { |
| value = String(); |
| return true; |
| } |
| |
| // HTML5 tells us that we're supposed to use this goofy value for |
| // file input controls. Historically, browsers revealed the real |
| // file path, but that's a privacy problem. Code on the web |
| // decided to try to parse the value by looking for backslashes |
| // (because that's what Windows file paths use). To be compatible |
| // with that code, we make up a fake path for the file. |
| value = "C:\\fakepath\\" + m_fileList->item(0)->name(); |
| return true; |
| } |
| |
| void FileInputType::setValue(const String&, |
| bool valueChanged, |
| TextFieldEventBehavior) { |
| if (!valueChanged) |
| return; |
| |
| m_fileList->clear(); |
| element().setNeedsStyleRecalc( |
| SubtreeStyleChange, |
| StyleChangeReasonForTracing::create(StyleChangeReason::ControlValue)); |
| element().setNeedsValidityCheck(); |
| } |
| |
| FileList* FileInputType::createFileList( |
| const Vector<FileChooserFileInfo>& files, |
| bool hasWebkitDirectoryAttr) { |
| FileList* fileList(FileList::create()); |
| size_t size = files.size(); |
| |
| // If a directory is being selected, the UI allows a directory to be chosen |
| // and the paths provided here share a root directory somewhere up the tree; |
| // we want to store only the relative paths from that point. |
| if (size && hasWebkitDirectoryAttr) { |
| // Find the common root path. |
| String rootPath = directoryName(files[0].path); |
| for (size_t i = 1; i < size; ++i) { |
| while (!files[i].path.startsWith(rootPath)) |
| rootPath = directoryName(rootPath); |
| } |
| rootPath = directoryName(rootPath); |
| DCHECK(rootPath.length()); |
| int rootLength = rootPath.length(); |
| if (rootPath[rootLength - 1] != '\\' && rootPath[rootLength - 1] != '/') |
| rootLength += 1; |
| for (size_t i = 0; i < size; ++i) { |
| // Normalize backslashes to slashes before exposing the relative path to |
| // script. |
| String relativePath = |
| files[i].path.substring(rootLength).replace('\\', '/'); |
| fileList->append( |
| File::createWithRelativePath(files[i].path, relativePath)); |
| } |
| return fileList; |
| } |
| |
| for (size_t i = 0; i < size; ++i) { |
| if (files[i].fileSystemURL.isEmpty()) { |
| fileList->append( |
| File::createForUserProvidedFile(files[i].path, files[i].displayName)); |
| } else { |
| fileList->append(File::createForFileSystemFile( |
| files[i].fileSystemURL, files[i].metadata, File::IsUserVisible)); |
| } |
| } |
| return fileList; |
| } |
| |
| void FileInputType::countUsage() { |
| Document* document = &element().document(); |
| if (document->isSecureContext()) |
| UseCounter::count(*document, UseCounter::InputTypeFileInsecureOrigin); |
| else |
| UseCounter::count(*document, UseCounter::InputTypeFileSecureOrigin); |
| } |
| |
| void FileInputType::createShadowSubtree() { |
| DCHECK(element().shadow()); |
| HTMLInputElement* button = |
| HTMLInputElement::create(element().document(), 0, false); |
| button->setType(InputTypeNames::button); |
| button->setAttribute( |
| valueAttr, |
| AtomicString(locale().queryString( |
| element().multiple() |
| ? WebLocalizedString::FileButtonChooseMultipleFilesLabel |
| : WebLocalizedString::FileButtonChooseFileLabel))); |
| button->setShadowPseudoId(AtomicString("-webkit-file-upload-button")); |
| element().userAgentShadowRoot()->appendChild(button); |
| } |
| |
| void FileInputType::disabledAttributeChanged() { |
| DCHECK(element().shadow()); |
| if (Element* button = |
| toElement(element().userAgentShadowRoot()->firstChild())) |
| button->setBooleanAttribute(disabledAttr, |
| element().isDisabledFormControl()); |
| } |
| |
| void FileInputType::multipleAttributeChanged() { |
| DCHECK(element().shadow()); |
| if (Element* button = |
| toElement(element().userAgentShadowRoot()->firstChild())) |
| button->setAttribute( |
| valueAttr, |
| AtomicString(locale().queryString( |
| element().multiple() |
| ? WebLocalizedString::FileButtonChooseMultipleFilesLabel |
| : WebLocalizedString::FileButtonChooseFileLabel))); |
| } |
| |
| void FileInputType::setFiles(FileList* files) { |
| if (!files) |
| return; |
| |
| bool filesChanged = false; |
| if (files->length() != m_fileList->length()) { |
| filesChanged = true; |
| } else { |
| for (unsigned i = 0; i < files->length(); ++i) { |
| if (!files->item(i)->hasSameSource(*m_fileList->item(i))) { |
| filesChanged = true; |
| break; |
| } |
| } |
| } |
| |
| m_fileList = files; |
| |
| element().notifyFormStateChanged(); |
| element().setNeedsValidityCheck(); |
| |
| if (element().layoutObject()) |
| element().layoutObject()->setShouldDoFullPaintInvalidation(); |
| |
| if (filesChanged) { |
| // This call may cause destruction of this instance. |
| // input instance is safe since it is ref-counted. |
| element().dispatchChangeEvent(); |
| } |
| element().setChangedSinceLastFormControlChangeEvent(false); |
| } |
| |
| void FileInputType::filesChosen(const Vector<FileChooserFileInfo>& files) { |
| setFiles( |
| createFileList(files, element().fastHasAttribute(webkitdirectoryAttr))); |
| } |
| |
| void FileInputType::setFilesFromDirectory(const String& path) { |
| if (ChromeClient* chromeClient = this->chromeClient()) { |
| FileChooserSettings settings; |
| HTMLInputElement& input = element(); |
| settings.allowsDirectoryUpload = true; |
| settings.allowsMultipleFiles = true; |
| settings.selectedFiles.append(path); |
| settings.acceptMIMETypes = input.acceptMIMETypes(); |
| settings.acceptFileExtensions = input.acceptFileExtensions(); |
| chromeClient->enumerateChosenDirectory(newFileChooser(settings)); |
| } |
| } |
| |
| void FileInputType::setFilesFromPaths(const Vector<String>& paths) { |
| if (paths.isEmpty()) |
| return; |
| |
| HTMLInputElement& input = element(); |
| if (input.fastHasAttribute(webkitdirectoryAttr)) { |
| setFilesFromDirectory(paths[0]); |
| return; |
| } |
| |
| Vector<FileChooserFileInfo> files; |
| for (unsigned i = 0; i < paths.size(); ++i) |
| files.append(FileChooserFileInfo(paths[i])); |
| |
| if (input.fastHasAttribute(multipleAttr)) { |
| filesChosen(files); |
| } else { |
| Vector<FileChooserFileInfo> firstFileOnly; |
| firstFileOnly.append(files[0]); |
| filesChosen(firstFileOnly); |
| } |
| } |
| |
| bool FileInputType::receiveDroppedFiles(const DragData* dragData) { |
| Vector<String> paths; |
| dragData->asFilePaths(paths); |
| if (paths.isEmpty()) |
| return false; |
| |
| if (!element().fastHasAttribute(webkitdirectoryAttr)) { |
| m_droppedFileSystemId = dragData->droppedFileSystemId(); |
| } |
| setFilesFromPaths(paths); |
| return true; |
| } |
| |
| String FileInputType::droppedFileSystemId() { |
| return m_droppedFileSystemId; |
| } |
| |
| String FileInputType::defaultToolTip(const InputTypeView&) const { |
| FileList* fileList = m_fileList.get(); |
| unsigned listSize = fileList->length(); |
| if (!listSize) { |
| return locale().queryString( |
| WebLocalizedString::FileButtonNoFileSelectedLabel); |
| } |
| |
| StringBuilder names; |
| for (size_t i = 0; i < listSize; ++i) { |
| names.append(fileList->item(i)->name()); |
| if (i != listSize - 1) |
| names.append('\n'); |
| } |
| return names.toString(); |
| } |
| |
| } // namespace blink |