diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/web/ContextMenuClientImpl.cpp')
| -rw-r--r-- | chromium/third_party/WebKit/Source/web/ContextMenuClientImpl.cpp | 419 |
1 files changed, 419 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/web/ContextMenuClientImpl.cpp b/chromium/third_party/WebKit/Source/web/ContextMenuClientImpl.cpp new file mode 100644 index 00000000000..c8f36925cf7 --- /dev/null +++ b/chromium/third_party/WebKit/Source/web/ContextMenuClientImpl.cpp @@ -0,0 +1,419 @@ +/* + * Copyright (C) 2009, 2012 Google 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: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT + * OWNER OR 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. + */ + +#include "config.h" +#include "ContextMenuClientImpl.h" + +#include "CSSPropertyNames.h" +#include "HTMLNames.h" +#include "WebContextMenuData.h" +#include "WebDataSourceImpl.h" +#include "WebFormElement.h" +#include "WebFrameImpl.h" +#include "WebMenuItemInfo.h" +#include "WebPlugin.h" +#include "WebPluginContainerImpl.h" +#include "WebSearchableFormData.h" +#include "WebSpellCheckClient.h" +#include "WebViewClient.h" +#include "WebViewImpl.h" +#include "bindings/v8/ExceptionStatePlaceholder.h" +#include "core/css/CSSStyleDeclaration.h" +#include "core/dom/Document.h" +#include "core/dom/DocumentMarkerController.h" +#include "core/editing/Editor.h" +#include "core/history/HistoryItem.h" +#include "core/html/HTMLFormElement.h" +#include "core/html/HTMLInputElement.h" +#include "core/html/HTMLMediaElement.h" +#include "core/html/HTMLPlugInImageElement.h" +#include "core/html/HTMLVideoElement.h" +#include "core/html/MediaError.h" +#include "core/loader/DocumentLoader.h" +#include "core/loader/FrameLoader.h" +#include "core/page/ContextMenuController.h" +#include "core/page/EventHandler.h" +#include "core/page/FrameView.h" +#include "core/page/Page.h" +#include "core/page/Settings.h" +#include "core/platform/ContextMenu.h" +#include "core/platform/Widget.h" +#include "core/platform/text/TextBreakIterator.h" +#include "core/rendering/HitTestResult.h" +#include "core/rendering/RenderWidget.h" +#include "public/platform/WebPoint.h" +#include "public/platform/WebString.h" +#include "public/platform/WebURL.h" +#include "public/platform/WebURLResponse.h" +#include "public/platform/WebVector.h" +#include "weborigin/KURL.h" +#include "wtf/text/WTFString.h" + +using namespace WebCore; + +namespace WebKit { + +// Figure out the URL of a page or subframe. Returns |page_type| as the type, +// which indicates page or subframe, or ContextNodeType::NONE if the URL could not +// be determined for some reason. +static WebURL urlFromFrame(Frame* frame) +{ + if (frame) { + DocumentLoader* dl = frame->loader()->documentLoader(); + if (dl) { + WebDataSource* ds = WebDataSourceImpl::fromDocumentLoader(dl); + if (ds) + return ds->hasUnreachableURL() ? ds->unreachableURL() : ds->request().url(); + } + } + return WebURL(); +} + +// Helper function to determine whether text is a single word. +static bool isASingleWord(const String& text) +{ + TextBreakIterator* it = wordBreakIterator(text, 0, text.length()); + return it && textBreakNext(it) == static_cast<int>(text.length()); +} + +// Helper function to get misspelled word on which context menu +// is to be invoked. This function also sets the word on which context menu +// has been invoked to be the selected word, as required. This function changes +// the selection only when there were no selected characters on OS X. +static String selectMisspelledWord(Frame* selectedFrame) +{ + // First select from selectedText to check for multiple word selection. + String misspelledWord = selectedFrame->selectedText().stripWhiteSpace(); + + // If some texts were already selected, we don't change the selection. + if (!misspelledWord.isEmpty()) { + // Don't provide suggestions for multiple words. + if (!isASingleWord(misspelledWord)) + return String(); + return misspelledWord; + } + + // Selection is empty, so change the selection to the word under the cursor. + HitTestResult hitTestResult = selectedFrame->eventHandler()-> + hitTestResultAtPoint(selectedFrame->page()->contextMenuController().hitTestResult().pointInInnerNodeFrame()); + Node* innerNode = hitTestResult.innerNode(); + VisiblePosition pos(innerNode->renderer()->positionForPoint( + hitTestResult.localPoint())); + + if (pos.isNull()) + return misspelledWord; // It is empty. + + WebFrameImpl::selectWordAroundPosition(selectedFrame, pos); + misspelledWord = selectedFrame->selectedText().stripWhiteSpace(); + +#if OS(DARWIN) + // If misspelled word is still empty, then that portion should not be + // selected. Set the selection to that position only, and do not expand. + if (misspelledWord.isEmpty()) + selectedFrame->selection()->setSelection(VisibleSelection(pos)); +#else + // On non-Mac, right-click should not make a range selection in any case. + selectedFrame->selection()->setSelection(VisibleSelection(pos)); +#endif + return misspelledWord; +} + +static bool IsWhiteSpaceOrPunctuation(UChar c) +{ + return isSpaceOrNewline(c) || WTF::Unicode::isPunct(c); +} + +static String selectMisspellingAsync(Frame* selectedFrame, DocumentMarker& marker) +{ + VisibleSelection selection = selectedFrame->selection()->selection(); + if (!selection.isCaretOrRange()) + return String(); + + // Caret and range selections always return valid normalized ranges. + RefPtr<Range> selectionRange = selection.toNormalizedRange(); + Vector<DocumentMarker*> markers = selectedFrame->document()->markers()->markersInRange(selectionRange.get(), DocumentMarker::Spelling | DocumentMarker::Grammar); + if (markers.size() != 1) + return String(); + marker = *markers[0]; + + // Cloning a range fails only for invalid ranges. + RefPtr<Range> markerRange = selectionRange->cloneRange(ASSERT_NO_EXCEPTION); + markerRange->setStart(markerRange->startContainer(), marker.startOffset()); + markerRange->setEnd(markerRange->endContainer(), marker.endOffset()); + + if (markerRange->text().stripWhiteSpace(&IsWhiteSpaceOrPunctuation) != selectionRange->text().stripWhiteSpace(&IsWhiteSpaceOrPunctuation)) + return String(); + + return markerRange->text(); +} + +void ContextMenuClientImpl::showContextMenu(const WebCore::ContextMenu* defaultMenu) +{ + // Displaying the context menu in this function is a big hack as we don't + // have context, i.e. whether this is being invoked via a script or in + // response to user input (Mouse event WM_RBUTTONDOWN, + // Keyboard events KeyVK_APPS, Shift+F10). Check if this is being invoked + // in response to the above input events before popping up the context menu. + if (!m_webView->contextMenuAllowed()) + return; + + HitTestResult r = m_webView->page()->contextMenuController().hitTestResult(); + Frame* selectedFrame = r.innerNodeFrame(); + + WebContextMenuData data; + data.mousePosition = selectedFrame->view()->contentsToWindow(r.roundedPointInInnerNodeFrame()); + + // Compute edit flags. + data.editFlags = WebContextMenuData::CanDoNone; + if (m_webView->focusedWebCoreFrame()->editor()->canUndo()) + data.editFlags |= WebContextMenuData::CanUndo; + if (m_webView->focusedWebCoreFrame()->editor()->canRedo()) + data.editFlags |= WebContextMenuData::CanRedo; + if (m_webView->focusedWebCoreFrame()->editor()->canCut()) + data.editFlags |= WebContextMenuData::CanCut; + if (m_webView->focusedWebCoreFrame()->editor()->canCopy()) + data.editFlags |= WebContextMenuData::CanCopy; + if (m_webView->focusedWebCoreFrame()->editor()->canPaste()) + data.editFlags |= WebContextMenuData::CanPaste; + if (m_webView->focusedWebCoreFrame()->editor()->canDelete()) + data.editFlags |= WebContextMenuData::CanDelete; + // We can always select all... + data.editFlags |= WebContextMenuData::CanSelectAll; + data.editFlags |= WebContextMenuData::CanTranslate; + + // Links, Images, Media tags, and Image/Media-Links take preference over + // all else. + data.linkURL = r.absoluteLinkURL(); + + if (!r.absoluteImageURL().isEmpty()) { + data.srcURL = r.absoluteImageURL(); + data.mediaType = WebContextMenuData::MediaTypeImage; + data.mediaFlags |= WebContextMenuData::MediaCanPrint; + } else if (!r.absoluteMediaURL().isEmpty()) { + data.srcURL = r.absoluteMediaURL(); + + // We know that if absoluteMediaURL() is not empty, then this + // is a media element. + HTMLMediaElement* mediaElement = + toMediaElement(r.innerNonSharedNode()); + if (isHTMLVideoElement(mediaElement)) + data.mediaType = WebContextMenuData::MediaTypeVideo; + else if (mediaElement->hasTagName(HTMLNames::audioTag)) + data.mediaType = WebContextMenuData::MediaTypeAudio; + + if (mediaElement->error()) + data.mediaFlags |= WebContextMenuData::MediaInError; + if (mediaElement->paused()) + data.mediaFlags |= WebContextMenuData::MediaPaused; + if (mediaElement->muted()) + data.mediaFlags |= WebContextMenuData::MediaMuted; + if (mediaElement->loop()) + data.mediaFlags |= WebContextMenuData::MediaLoop; + if (mediaElement->supportsSave()) + data.mediaFlags |= WebContextMenuData::MediaCanSave; + if (mediaElement->hasAudio()) + data.mediaFlags |= WebContextMenuData::MediaHasAudio; + if (mediaElement->hasVideo()) + data.mediaFlags |= WebContextMenuData::MediaHasVideo; + if (mediaElement->controls()) + data.mediaFlags |= WebContextMenuData::MediaControls; + } else if (r.innerNonSharedNode()->hasTagName(HTMLNames::objectTag) + || r.innerNonSharedNode()->hasTagName(HTMLNames::embedTag)) { + RenderObject* object = r.innerNonSharedNode()->renderer(); + if (object && object->isWidget()) { + Widget* widget = toRenderWidget(object)->widget(); + if (widget && widget->isPluginContainer()) { + data.mediaType = WebContextMenuData::MediaTypePlugin; + WebPluginContainerImpl* plugin = static_cast<WebPluginContainerImpl*>(widget); + WebString text = plugin->plugin()->selectionAsText(); + if (!text.isEmpty()) { + data.selectedText = text; + data.editFlags |= WebContextMenuData::CanCopy; + } + data.editFlags &= ~WebContextMenuData::CanTranslate; + data.linkURL = plugin->plugin()->linkAtPosition(data.mousePosition); + if (plugin->plugin()->supportsPaginatedPrint()) + data.mediaFlags |= WebContextMenuData::MediaCanPrint; + + HTMLPlugInImageElement* pluginElement = toHTMLPlugInImageElement(r.innerNonSharedNode()); + data.srcURL = pluginElement->document()->completeURL(pluginElement->url()); + data.mediaFlags |= WebContextMenuData::MediaCanSave; + + // Add context menu commands that are supported by the plugin. + if (plugin->plugin()->canRotateView()) + data.mediaFlags |= WebContextMenuData::MediaCanRotate; + } + } + } + + data.isImageBlocked = + (data.mediaType == WebContextMenuData::MediaTypeImage) && !r.image(); + + // If it's not a link, an image, a media element, or an image/media link, + // show a selection menu or a more generic page menu. + if (selectedFrame->document()->loader()) + data.frameEncoding = selectedFrame->document()->encoding(); + + // Send the frame and page URLs in any case. + data.pageURL = urlFromFrame(m_webView->mainFrameImpl()->frame()); + if (selectedFrame != m_webView->mainFrameImpl()->frame()) { + data.frameURL = urlFromFrame(selectedFrame); + RefPtr<HistoryItem> historyItem = selectedFrame->loader()->history()->currentItem(); + if (historyItem) + data.frameHistoryItem = WebHistoryItem(historyItem); + } + + if (r.isSelected()) { + if (!r.innerNonSharedNode()->hasTagName(HTMLNames::inputTag) || !toHTMLInputElement(r.innerNonSharedNode())->isPasswordField()) + data.selectedText = selectedFrame->selectedText().stripWhiteSpace(); + } + + if (r.isContentEditable()) { + data.isEditable = true; +#if ENABLE(INPUT_SPEECH) + if (r.innerNonSharedNode()->hasTagName(HTMLNames::inputTag)) + data.isSpeechInputEnabled = toHTMLInputElement(r.innerNonSharedNode())->isSpeechEnabled(); +#endif + // When Chrome enables asynchronous spellchecking, its spellchecker adds spelling markers to misspelled + // words and attaches suggestions to these markers in the background. Therefore, when a user right-clicks + // a mouse on a word, Chrome just needs to find a spelling marker on the word instead of spellchecking it. + if (selectedFrame->settings() && selectedFrame->settings()->asynchronousSpellCheckingEnabled()) { + DocumentMarker marker; + data.misspelledWord = selectMisspellingAsync(selectedFrame, marker); + data.misspellingHash = marker.hash(); + if (marker.description().length()) { + Vector<String> suggestions; + marker.description().split('\n', suggestions); + data.dictionarySuggestions = suggestions; + } else if (m_webView->spellCheckClient()) { + int misspelledOffset, misspelledLength; + m_webView->spellCheckClient()->spellCheck(data.misspelledWord, misspelledOffset, misspelledLength, &data.dictionarySuggestions); + } + } else { + data.isSpellCheckingEnabled = + m_webView->focusedWebCoreFrame()->editor()->isContinuousSpellCheckingEnabled(); + // Spellchecking might be enabled for the field, but could be disabled on the node. + if (m_webView->focusedWebCoreFrame()->editor()->isSpellCheckingEnabledInFocusedNode()) { + data.misspelledWord = selectMisspelledWord(selectedFrame); + if (m_webView->spellCheckClient()) { + int misspelledOffset, misspelledLength; + m_webView->spellCheckClient()->spellCheck( + data.misspelledWord, misspelledOffset, misspelledLength, + &data.dictionarySuggestions); + if (!misspelledLength) + data.misspelledWord.reset(); + } + } + } + HTMLFormElement* form = selectedFrame->selection()->currentForm(); + if (form && r.innerNonSharedNode()->hasTagName(HTMLNames::inputTag)) { + HTMLInputElement* selectedElement = toHTMLInputElement(r.innerNonSharedNode()); + if (selectedElement) { + WebSearchableFormData ws = WebSearchableFormData(WebFormElement(form), WebInputElement(selectedElement)); + if (ws.url().isValid()) + data.keywordURL = ws.url(); + } + } + } + +#if OS(DARWIN) + if (selectedFrame->editor()->selectionHasStyle(CSSPropertyDirection, "ltr") != FalseTriState) + data.writingDirectionLeftToRight |= WebContextMenuData::CheckableMenuItemChecked; + if (selectedFrame->editor()->selectionHasStyle(CSSPropertyDirection, "rtl") != FalseTriState) + data.writingDirectionRightToLeft |= WebContextMenuData::CheckableMenuItemChecked; +#endif // OS(DARWIN) + + // Now retrieve the security info. + DocumentLoader* dl = selectedFrame->loader()->documentLoader(); + WebDataSource* ds = WebDataSourceImpl::fromDocumentLoader(dl); + if (ds) + data.securityInfo = ds->response().securityInfo(); + + data.referrerPolicy = static_cast<WebReferrerPolicy>(selectedFrame->document()->referrerPolicy()); + + // Filter out custom menu elements and add them into the data. + populateCustomMenuItems(defaultMenu, &data); + + data.node = r.innerNonSharedNode(); + + WebFrame* selected_web_frame = WebFrameImpl::fromFrame(selectedFrame); + if (m_webView->client()) + m_webView->client()->showContextMenu(selected_web_frame, data); +} + +void ContextMenuClientImpl::clearContextMenu() +{ + if (m_webView->client()) + m_webView->client()->clearContextMenu(); +} + +static void populateSubMenuItems(const Vector<ContextMenuItem>& inputMenu, WebVector<WebMenuItemInfo>& subMenuItems) +{ + Vector<WebMenuItemInfo> subItems; + for (size_t i = 0; i < inputMenu.size(); ++i) { + const ContextMenuItem* inputItem = &inputMenu.at(i); + if (inputItem->action() < ContextMenuItemBaseCustomTag || inputItem->action() > ContextMenuItemLastCustomTag) + continue; + + WebMenuItemInfo outputItem; + outputItem.label = inputItem->title(); + outputItem.enabled = inputItem->enabled(); + outputItem.checked = inputItem->checked(); + outputItem.action = static_cast<unsigned>(inputItem->action() - ContextMenuItemBaseCustomTag); + switch (inputItem->type()) { + case ActionType: + outputItem.type = WebMenuItemInfo::Option; + break; + case CheckableActionType: + outputItem.type = WebMenuItemInfo::CheckableOption; + break; + case SeparatorType: + outputItem.type = WebMenuItemInfo::Separator; + break; + case SubmenuType: + outputItem.type = WebMenuItemInfo::SubMenu; + populateSubMenuItems(inputItem->subMenuItems(), outputItem.subMenuItems); + break; + } + subItems.append(outputItem); + } + + WebVector<WebMenuItemInfo> outputItems(subItems.size()); + for (size_t i = 0; i < subItems.size(); ++i) + outputItems[i] = subItems[i]; + subMenuItems.swap(outputItems); +} + +void ContextMenuClientImpl::populateCustomMenuItems(const WebCore::ContextMenu* defaultMenu, WebContextMenuData* data) +{ + populateSubMenuItems(defaultMenu->items(), data->customItems); +} + +} // namespace WebKit |