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+/*
+ * 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 "ChromeClientImpl.h"
+
+#include "AccessibilityObject.h"
+#include "AXObjectCache.h"
+#include "CharacterNames.h"
+#include "Console.h"
+#include "Cursor.h"
+#include "Document.h"
+#include "DocumentLoader.h"
+#include "DatabaseTracker.h"
+#include "FloatRect.h"
+#include "FileChooser.h"
+#include "FrameLoadRequest.h"
+#include "FrameView.h"
+#include "HitTestResult.h"
+#include "IntRect.h"
+#include "Node.h"
+#include "NotificationPresenterImpl.h"
+#include "Page.h"
+#include "PopupMenuChromium.h"
+#include "ScriptController.h"
+#if USE(V8)
+#include "V8Proxy.h"
+#endif
+#include "WebAccessibilityObject.h"
+#include "WebConsoleMessage.h"
+#include "WebCursorInfo.h"
+#include "WebFileChooserCompletion.h"
+#include "WebFrameClient.h"
+#include "WebInputEvent.h"
+#include "WebKit.h"
+#include "WebPopupMenuInfo.h"
+#include "WebRect.h"
+#include "WebTextDirection.h"
+#include "WebURLRequest.h"
+#include "WebViewClient.h"
+#include "WebFileChooserCompletionImpl.h"
+#include "WebPopupMenuImpl.h"
+#include "WindowFeatures.h"
+#include "WrappedResourceRequest.h"
+
+// FIXME: Remove these once they move out of glue/.
+#include "webkit/glue/webframe_impl.h"
+#include "webkit/glue/webview_impl.h"
+
+using namespace WebCore;
+
+namespace WebKit {
+
+ChromeClientImpl::ChromeClientImpl(WebViewImpl* webView)
+ : m_webView(webView)
+ , m_toolbarsVisible(true)
+ , m_statusbarVisible(true)
+ , m_scrollbarsVisible(true)
+ , m_menubarVisible(true)
+ , m_resizable(true)
+ , m_ignoreNextSetCursor(false)
+{
+}
+
+ChromeClientImpl::~ChromeClientImpl()
+{
+}
+
+void ChromeClientImpl::chromeDestroyed()
+{
+ // Our lifetime is bound to the WebViewImpl.
+}
+
+void ChromeClientImpl::setWindowRect(const FloatRect& r)
+{
+ if (m_webView->client())
+ m_webView->client()->setWindowRect(IntRect(r));
+}
+
+FloatRect ChromeClientImpl::windowRect()
+{
+ WebRect rect;
+ if (m_webView->client())
+ rect = m_webView->client()->rootWindowRect();
+ else {
+ // These numbers will be fairly wrong. The window's x/y coordinates will
+ // be the top left corner of the screen and the size will be the content
+ // size instead of the window size.
+ rect.width = m_webView->size().width;
+ rect.height = m_webView->size().height;
+ }
+ return FloatRect(rect);
+}
+
+FloatRect ChromeClientImpl::pageRect()
+{
+ // We hide the details of the window's border thickness from the web page by
+ // simple re-using the window position here. So, from the point-of-view of
+ // the web page, the window has no border.
+ return windowRect();
+}
+
+float ChromeClientImpl::scaleFactor()
+{
+ // This is supposed to return the scale factor of the web page. It looks like
+ // the implementor of the graphics layer is responsible for doing most of the
+ // operations associated with scaling. However, this value is used ins some
+ // cases by WebCore. For example, this is used as a scaling factor in canvas
+ // so that things drawn in it are scaled just like the web page is.
+ //
+ // We don't currently implement scaling, so just return 1.0 (no scaling).
+ return 1.0;
+}
+
+void ChromeClientImpl::focus()
+{
+ if (!m_webView->client())
+ return;
+
+ m_webView->client()->didFocus();
+
+ // If accessibility is enabled, we should notify assistive technology that
+ // the active AccessibilityObject changed.
+ const Frame* frame = m_webView->GetFocusedWebCoreFrame();
+ if (!frame)
+ return;
+
+ Document* doc = frame->document();
+
+ if (doc && doc->axObjectCache()->accessibilityEnabled()) {
+ Node* focusedNode = m_webView->GetFocusedNode();
+
+ if (!focusedNode) {
+ // Could not retrieve focused Node.
+ return;
+ }
+
+ // Retrieve the focused AccessibilityObject.
+ AccessibilityObject* focusedAccObj =
+ doc->axObjectCache()->getOrCreate(focusedNode->renderer());
+
+ // Alert assistive technology that focus changed.
+ if (focusedAccObj)
+ m_webView->client()->focusAccessibilityObject(WebAccessibilityObject(focusedAccObj));
+ }
+}
+
+void ChromeClientImpl::unfocus()
+{
+ if (m_webView->client())
+ m_webView->client()->didBlur();
+}
+
+bool ChromeClientImpl::canTakeFocus(FocusDirection)
+{
+ // For now the browser can always take focus if we're not running layout
+ // tests.
+ return !layoutTestMode();
+}
+
+void ChromeClientImpl::takeFocus(FocusDirection direction)
+{
+ if (!m_webView->client())
+ return;
+ if (direction == FocusDirectionBackward)
+ m_webView->client()->focusPrevious();
+ else
+ m_webView->client()->focusNext();
+}
+
+Page* ChromeClientImpl::createWindow(
+ Frame* frame, const FrameLoadRequest& r, const WindowFeatures& features)
+{
+ if (!m_webView->client())
+ return 0;
+
+ WebViewImpl* newView = static_cast<WebViewImpl*>(
+ m_webView->client()->createView(WebFrameImpl::FromFrame(frame)));
+ if (!newView)
+ return 0;
+
+ // The request is empty when we are just being asked to open a blank window.
+ // This corresponds to window.open(""), for example.
+ if (!r.resourceRequest().isEmpty()) {
+ WrappedResourceRequest request(r.resourceRequest());
+ newView->main_frame()->loadRequest(request);
+ }
+
+ return newView->page();
+}
+
+static inline bool CurrentEventShouldCauseBackgroundTab(const WebInputEvent* inputEvent)
+{
+ if (!inputEvent)
+ return false;
+
+ if (inputEvent->type != WebInputEvent::MouseUp)
+ return false;
+
+ const WebMouseEvent* mouseEvent = static_cast<const WebMouseEvent*>(inputEvent);
+
+ WebNavigationPolicy policy;
+ unsigned short buttonNumber;
+ switch (mouseEvent->button) {
+ case WebMouseEvent::ButtonLeft:
+ buttonNumber = 0;
+ break;
+ case WebMouseEvent::ButtonMiddle:
+ buttonNumber = 1;
+ break;
+ case WebMouseEvent::ButtonRight:
+ buttonNumber = 2;
+ break;
+ default:
+ return false;
+ }
+ bool ctrl = mouseEvent->modifiers & WebMouseEvent::ControlKey;
+ bool shift = mouseEvent->modifiers & WebMouseEvent::ShiftKey;
+ bool alt = mouseEvent->modifiers & WebMouseEvent::AltKey;
+ bool meta = mouseEvent->modifiers & WebMouseEvent::MetaKey;
+
+ if (!WebViewImpl::NavigationPolicyFromMouseEvent(buttonNumber, ctrl, shift, alt, meta, &policy))
+ return false;
+
+ return policy == WebNavigationPolicyNewBackgroundTab;
+}
+
+void ChromeClientImpl::show()
+{
+ if (!m_webView->client())
+ return;
+
+ // If our default configuration was modified by a script or wasn't
+ // created by a user gesture, then show as a popup. Else, let this
+ // new window be opened as a toplevel window.
+ bool asPopup =
+ !m_toolbarsVisible ||
+ !m_statusbarVisible ||
+ !m_scrollbarsVisible ||
+ !m_menubarVisible ||
+ !m_resizable;
+
+ WebNavigationPolicy policy = WebNavigationPolicyNewForegroundTab;
+ if (asPopup)
+ policy = WebNavigationPolicyNewPopup;
+ if (CurrentEventShouldCauseBackgroundTab(WebViewImpl::current_input_event()))
+ policy = WebNavigationPolicyNewBackgroundTab;
+
+ m_webView->client()->show(policy);
+}
+
+bool ChromeClientImpl::canRunModal()
+{
+ return m_webView->client() != 0;
+}
+
+void ChromeClientImpl::runModal()
+{
+ if (m_webView->client())
+ m_webView->client()->runModal();
+}
+
+void ChromeClientImpl::setToolbarsVisible(bool value)
+{
+ m_toolbarsVisible = value;
+}
+
+bool ChromeClientImpl::toolbarsVisible()
+{
+ return m_toolbarsVisible;
+}
+
+void ChromeClientImpl::setStatusbarVisible(bool value)
+{
+ m_statusbarVisible = value;
+}
+
+bool ChromeClientImpl::statusbarVisible()
+{
+ return m_statusbarVisible;
+}
+
+void ChromeClientImpl::setScrollbarsVisible(bool value)
+{
+ m_scrollbarsVisible = value;
+ WebFrameImpl* web_frame = static_cast<WebFrameImpl*>(m_webView->mainFrame());
+ if (web_frame)
+ web_frame->SetAllowsScrolling(value);
+}
+
+bool ChromeClientImpl::scrollbarsVisible()
+{
+ return m_scrollbarsVisible;
+}
+
+void ChromeClientImpl::setMenubarVisible(bool value)
+{
+ m_menubarVisible = value;
+}
+
+bool ChromeClientImpl::menubarVisible()
+{
+ return m_menubarVisible;
+}
+
+void ChromeClientImpl::setResizable(bool value)
+{
+ m_resizable = value;
+}
+
+void ChromeClientImpl::addMessageToConsole(MessageSource source,
+ MessageType type,
+ MessageLevel level,
+ const String& message,
+ unsigned lineNumber,
+ const String& sourceID)
+{
+ if (m_webView->client()) {
+ m_webView->client()->didAddMessageToConsole(
+ WebConsoleMessage(static_cast<WebConsoleMessage::Level>(level), message),
+ sourceID,
+ lineNumber);
+ }
+}
+
+bool ChromeClientImpl::canRunBeforeUnloadConfirmPanel()
+{
+ return m_webView->client() != 0;
+}
+
+bool ChromeClientImpl::runBeforeUnloadConfirmPanel(const String& message, Frame* frame)
+{
+ if (m_webView->client()) {
+ return m_webView->client()->runModalBeforeUnloadDialog(
+ WebFrameImpl::FromFrame(frame), message);
+ }
+ return false;
+}
+
+void ChromeClientImpl::closeWindowSoon()
+{
+ // Make sure this Page can no longer be found by JS.
+ m_webView->page()->setGroupName(String());
+
+ // Make sure that all loading is stopped. Ensures that JS stops executing!
+ m_webView->mainFrame()->stopLoading();
+
+ if (m_webView->client())
+ m_webView->client()->closeWidgetSoon();
+}
+
+// Although a Frame is passed in, we don't actually use it, since we
+// already know our own m_webView.
+void ChromeClientImpl::runJavaScriptAlert(Frame* frame, const String& message)
+{
+ if (m_webView->client()) {
+#if USE(V8)
+ // Before showing the JavaScript dialog, we give the proxy implementation
+ // a chance to process any pending console messages.
+ V8Proxy::processConsoleMessages();
+#endif
+ m_webView->client()->runModalAlertDialog(
+ WebFrameImpl::FromFrame(frame), message);
+ }
+}
+
+// See comments for runJavaScriptAlert().
+bool ChromeClientImpl::runJavaScriptConfirm(Frame* frame, const String& message)
+{
+ if (m_webView->client()) {
+ return m_webView->client()->runModalConfirmDialog(
+ WebFrameImpl::FromFrame(frame), message);
+ }
+ return false;
+}
+
+// See comments for runJavaScriptAlert().
+bool ChromeClientImpl::runJavaScriptPrompt(Frame* frame,
+ const String& message,
+ const String& defaultValue,
+ String& result)
+{
+ if (m_webView->client()) {
+ WebString actualValue;
+ bool ok = m_webView->client()->runModalPromptDialog(
+ WebFrameImpl::FromFrame(frame),
+ message,
+ defaultValue,
+ &actualValue);
+ if (ok)
+ result = actualValue;
+ return ok;
+ }
+ return false;
+}
+
+void ChromeClientImpl::setStatusbarText(const String& message)
+{
+ if (m_webView->client())
+ m_webView->client()->setStatusText(message);
+}
+
+bool ChromeClientImpl::shouldInterruptJavaScript()
+{
+ // FIXME: implement me
+ return false;
+}
+
+bool ChromeClientImpl::tabsToLinks() const
+{
+ // Returns true if anchors should accept keyboard focus with the tab key.
+ // This method is used in a convoluted fashion by EventHandler::tabsToLinks.
+ // It's a twisted path (self-evident, but more complicated than seems
+ // necessary), but the net result is that returning true from here, on a
+ // platform other than MAC or QT, lets anchors get keyboard focus.
+ return m_webView->tabsToLinks();
+}
+
+IntRect ChromeClientImpl::windowResizerRect() const
+{
+ IntRect result;
+ if (m_webView->client())
+ result = m_webView->client()->windowResizerRect();
+ return result;
+}
+
+void ChromeClientImpl::repaint(
+ const IntRect& paintRect, bool contentChanged, bool immediate,
+ bool repaintContentOnly)
+{
+ // Ignore spurious calls.
+ if (!contentChanged || paintRect.isEmpty())
+ return;
+ if (m_webView->client())
+ m_webView->client()->didInvalidateRect(paintRect);
+}
+
+void ChromeClientImpl::scroll(
+ const IntSize& scrollDelta, const IntRect& scrollRect,
+ const IntRect& clipRect)
+{
+ if (m_webView->client()) {
+ int dx = scrollDelta.width();
+ int dy = scrollDelta.height();
+ m_webView->client()->didScrollRect(dx, dy, clipRect);
+ }
+}
+
+IntPoint ChromeClientImpl::screenToWindow(const IntPoint&) const
+{
+ notImplemented();
+ return IntPoint();
+}
+
+IntRect ChromeClientImpl::windowToScreen(const IntRect& rect) const {
+ IntRect screenRect(rect);
+
+ if (m_webView->client()) {
+ WebRect windowRect = m_webView->client()->windowRect();
+ screenRect.move(windowRect.x, windowRect.y);
+ }
+
+ return screenRect;
+}
+
+void ChromeClientImpl::contentsSizeChanged(Frame* frame, const IntSize& size) const
+{
+ WebFrameImpl* webframe = WebFrameImpl::FromFrame(frame);
+ if (webframe->client())
+ webframe->client()->didChangeContentsSize(webframe, size);
+}
+
+void ChromeClientImpl::scrollbarsModeDidChange() const
+{
+}
+
+void ChromeClientImpl::mouseDidMoveOverElement(
+ const HitTestResult& result, unsigned modifierFlags)
+{
+ if (!m_webView->client())
+ return;
+ // Find out if the mouse is over a link, and if so, let our UI know...
+ if (result.isLiveLink() && !result.absoluteLinkURL().string().isEmpty())
+ m_webView->client()->setMouseOverURL(result.absoluteLinkURL());
+ else
+ m_webView->client()->setMouseOverURL(WebURL());
+}
+
+void ChromeClientImpl::setToolTip(const String& tooltipText, TextDirection dir)
+{
+ if (!m_webView->client())
+ return;
+ WebTextDirection textDirection = (dir == RTL) ?
+ WebTextDirectionRightToLeft :
+ WebTextDirectionLeftToRight;
+ m_webView->client()->setToolTipText(
+ tooltipText, textDirection);
+}
+
+void ChromeClientImpl::print(Frame* frame)
+{
+ if (m_webView->client())
+ m_webView->client()->printPage(WebFrameImpl::FromFrame(frame));
+}
+
+void ChromeClientImpl::exceededDatabaseQuota(Frame* frame, const String& databaseName)
+{
+ // set a reasonable quota for now -- 5Mb should be enough for anybody
+ // TODO(dglazkov): this should be configurable
+ SecurityOrigin* origin = frame->document()->securityOrigin();
+ DatabaseTracker::tracker().setQuota(origin, 1024 * 1024 * 5);
+}
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+void ChromeClientImpl::reachedMaxAppCacheSize(int64_t spaceNeeded)
+{
+ ASSERT_NOT_REACHED();
+}
+#endif
+
+void ChromeClientImpl::runOpenPanel(Frame* frame, PassRefPtr<FileChooser> fileChooser)
+{
+ WebViewClient* client = m_webView->client();
+ if (!client)
+ return;
+
+ bool multipleFiles = fileChooser->allowsMultipleFiles();
+
+ WebString suggestion;
+ if (fileChooser->filenames().size() > 0)
+ suggestion = fileChooser->filenames()[0];
+
+ WebFileChooserCompletionImpl* chooserCompletion =
+ new WebFileChooserCompletionImpl(fileChooser);
+ bool ok = client->runFileChooser(multipleFiles,
+ WebString(),
+ suggestion,
+ chooserCompletion);
+ if (!ok) {
+ // Choosing failed, so do callback with an empty list.
+ chooserCompletion->didChooseFile(WebVector<WebString>());
+ }
+}
+
+void ChromeClientImpl::popupOpened(PopupContainer* popupContainer,
+ const IntRect& bounds,
+ bool activatable,
+ bool handleExternally)
+{
+ if (!m_webView->client())
+ return;
+
+ WebWidget* webwidget;
+ if (handleExternally) {
+ WebPopupMenuInfo popupInfo;
+ getPopupMenuInfo(popupContainer, &popupInfo);
+ webwidget = m_webView->client()->createPopupMenu(popupInfo);
+ } else
+ webwidget = m_webView->client()->createPopupMenu(activatable);
+
+ static_cast<WebPopupMenuImpl*>(webwidget)->Init(popupContainer, bounds);
+}
+
+void ChromeClientImpl::setCursor(const WebCursorInfo& cursor)
+{
+ if (m_ignoreNextSetCursor) {
+ m_ignoreNextSetCursor = false;
+ return;
+ }
+
+ if (m_webView->client())
+ m_webView->client()->didChangeCursor(cursor);
+}
+
+void ChromeClientImpl::setCursorForPlugin(const WebCursorInfo& cursor)
+{
+ setCursor(cursor);
+
+ // Currently, Widget::setCursor is always called after this function in
+ // EventHandler.cpp and since we don't want that we set a flag indicating
+ // that the next SetCursor call is to be ignored.
+ m_ignoreNextSetCursor = true;
+}
+
+void ChromeClientImpl::formStateDidChange(const Node* node)
+{
+ // The current history item is not updated yet. That happens lazily when
+ // WebFrame::currentHistoryItem is requested.
+ WebFrameImpl* webframe = WebFrameImpl::FromFrame(node->document()->frame());
+ if (webframe->client())
+ webframe->client()->didUpdateCurrentHistoryItem(webframe);
+}
+
+void ChromeClientImpl::getPopupMenuInfo(PopupContainer* popupContainer,
+ WebPopupMenuInfo* info)
+{
+ const Vector<PopupItem*>& inputItems = popupContainer->popupData();
+
+ WebVector<WebPopupMenuInfo::Item> outputItems(inputItems.size());
+
+ for (size_t i = 0; i < inputItems.size(); ++i) {
+ const PopupItem& inputItem = *inputItems[i];
+ WebPopupMenuInfo::Item& outputItem = outputItems[i];
+
+ outputItem.label = inputItem.label;
+ outputItem.enabled = inputItem.enabled;
+
+ switch (inputItem.type) {
+ case PopupItem::TypeOption:
+ outputItem.type = WebPopupMenuInfo::Item::Option;
+ break;
+ case PopupItem::TypeGroup:
+ outputItem.type = WebPopupMenuInfo::Item::Group;
+ break;
+ case PopupItem::TypeSeparator:
+ outputItem.type = WebPopupMenuInfo::Item::Separator;
+ break;
+ default:
+ ASSERT_NOT_REACHED();
+ }
+ }
+
+ info->itemHeight = popupContainer->menuItemHeight();
+ info->selectedIndex = popupContainer->selectedIndex();
+ info->items.swap(outputItems);
+}
+
+#if ENABLE(NOTIFICATIONS)
+NotificationPresenter* ChromeClientImpl::notificationPresenter() const
+{
+ return m_webView->GetNotificationPresenter();
+}
+#endif
+
+} // namespace WebKit