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Diffstat (limited to 'Source/WebKit/chromium/src/ContextMenuClientImpl.cpp')
| -rw-r--r-- | Source/WebKit/chromium/src/ContextMenuClientImpl.cpp | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/Source/WebKit/chromium/src/ContextMenuClientImpl.cpp b/Source/WebKit/chromium/src/ContextMenuClientImpl.cpp new file mode 100644 index 0000000..d166d9d --- /dev/null +++ b/Source/WebKit/chromium/src/ContextMenuClientImpl.cpp @@ -0,0 +1,324 @@ +/* + * Copyright (C) 2009 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 "CSSStyleDeclaration.h" +#include "ContextMenu.h" +#include "ContextMenuController.h" +#include "Document.h" +#include "DocumentLoader.h" +#include "Editor.h" +#include "EventHandler.h" +#include "FrameLoader.h" +#include "FrameView.h" +#include "HitTestResult.h" +#include "HTMLMediaElement.h" +#include "HTMLNames.h" +#include "HTMLPlugInImageElement.h" +#include "KURL.h" +#include "MediaError.h" +#include "Page.h" +#include "PlatformString.h" +#include "RenderWidget.h" +#include "TextBreakIterator.h" +#include "Widget.h" + +#include "WebContextMenuData.h" +#include "WebDataSourceImpl.h" +#include "WebFrameImpl.h" +#include "WebMenuItemInfo.h" +#include "WebPlugin.h" +#include "WebPluginContainerImpl.h" +#include "WebPoint.h" +#include "WebString.h" +#include "WebURL.h" +#include "WebURLResponse.h" +#include "WebVector.h" +#include "WebViewClient.h" +#include "WebViewImpl.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.characters(), text.length()); + return it && textBreakNext(it) == static_cast<int>(text.length()); +} + +// Helper function to get misspelled word on which context menu +// is to be evolked. This function also sets the word on which context menu +// has been evoked 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(const ContextMenu* defaultMenu, Frame* selectedFrame) +{ + // First select from selectedText to check for multiple word selection. + String misspelledWord = selectedFrame->editor()->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().point(), true); + 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->editor()->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; +} + +PlatformMenuDescription ContextMenuClientImpl::getCustomMenuFromDefaultItems( + 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 0; + + HitTestResult r = m_webView->page()->contextMenuController()->hitTestResult(); + Frame* selectedFrame = r.innerNonSharedNode()->document()->frame(); + + WebContextMenuData data; + data.mousePosition = selectedFrame->view()->contentsToWindow(r.point()); + + // 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; + } 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 = + static_cast<HTMLMediaElement*>(r.innerNonSharedNode()); + if (mediaElement->hasTagName(HTMLNames::videoTag)) + 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 = static_cast<HTMLPlugInImageElement*>(r.innerNonSharedNode()); + data.srcURL = pluginElement->document()->completeURL(pluginElement->url()); + data.mediaFlags |= WebContextMenuData::MediaCanSave; + } + } + } + + 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. + data.frameEncoding = selectedFrame->loader()->writer()->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); + + if (r.isSelected()) + data.selectedText = selectedFrame->editor()->selectedText().stripWhiteSpace(); + + if (r.isContentEditable()) { + data.isEditable = true; + if (m_webView->focusedWebCoreFrame()->editor()->isContinuousSpellCheckingEnabled()) { + data.isSpellCheckingEnabled = true; + // Spellchecking might be enabled for the field, but could be disabled on the node. + if (m_webView->focusedWebCoreFrame()->editor()->isSpellCheckingEnabledInFocusedNode()) + data.misspelledWord = selectMisspelledWord(defaultMenu, selectedFrame); + } + } + +#if OS(DARWIN) + ExceptionCode ec = 0; + RefPtr<CSSStyleDeclaration> style = selectedFrame->document()->createCSSStyleDeclaration(); + style->setProperty(CSSPropertyDirection, "ltr", false, ec); + if (selectedFrame->editor()->selectionHasStyle(style.get()) != FalseTriState) + data.writingDirectionLeftToRight |= WebContextMenuData::CheckableMenuItemChecked; + style->setProperty(CSSPropertyDirection, "rtl", false, ec); + if (selectedFrame->editor()->selectionHasStyle(style.get()) != 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(); + + // 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); + + return 0; +} + +void ContextMenuClientImpl::populateCustomMenuItems(WebCore::ContextMenu* defaultMenu, WebContextMenuData* data) +{ + Vector<WebMenuItemInfo> customItems; + for (size_t i = 0; i < defaultMenu->itemCount(); ++i) { + ContextMenuItem* inputItem = defaultMenu->itemAtIndex(i, defaultMenu->platformDescription()); + 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::Group; + break; + } + customItems.append(outputItem); + } + + WebVector<WebMenuItemInfo> outputItems(customItems.size()); + for (size_t i = 0; i < customItems.size(); ++i) + outputItems[i] = customItems[i]; + data->customItems.swap(outputItems); +} + +} // namespace WebKit |