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Unified Diff: third_party/WebKit/Source/WebKit/chromium/src/ScrollbarGroup.cpp

Issue 7538006: Pepper and WebKit API change to support a plugin knowing if a scrollbar is an overlay one. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Make scrollbars appear when chrome becomes active Created 9 years, 4 months ago
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Index: third_party/WebKit/Source/WebKit/chromium/src/ScrollbarGroup.cpp
===================================================================
--- third_party/WebKit/Source/WebKit/chromium/src/ScrollbarGroup.cpp (revision 0)
+++ third_party/WebKit/Source/WebKit/chromium/src/ScrollbarGroup.cpp (revision 0)
@@ -0,0 +1,260 @@
+/*
+ * Copyright (C) 2011 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 "ScrollbarGroup.h"
+
+#include "WebScrollbarImpl.h"
+#include "WebRect.h"
+
+#include "Page.h"
+#include "Scrollbar.h"
+#include "ScrollbarTheme.h"
+
+using namespace std;
darin (slow to review) 2011/08/10 18:00:34 is 'using namespace std' needed? doesn't look lik
+using namespace WebCore;
+
+namespace WebKit {
+
+ScrollbarGroup::ScrollbarGroup(Page* page)
+ : m_page(page),
+ m_horizontalScrollbar(0)
+ , m_verticalScrollbar(0)
+{
+ m_page->addScrollableArea(this);
+}
+
+ScrollbarGroup::~ScrollbarGroup()
+{
+ ASSERT(!m_horizontalScrollbar);
+ ASSERT(!m_verticalScrollbar);
+ if (m_page)
+ m_page->removeScrollableArea(this);
+}
+
+void ScrollbarGroup::scrollbarCreated(WebScrollbarImpl* scrollbar)
+{
+ if (scrollbar->scrollbar()->orientation() == HorizontalScrollbar) {
+ ASSERT(!m_horizontalScrollbar);
+ m_horizontalScrollbar = scrollbar;
+ didAddHorizontalScrollbar(scrollbar->scrollbar());
+ } else {
+ ASSERT(!m_verticalScrollbar);
+ m_verticalScrollbar = scrollbar;
+ didAddVerticalScrollbar(scrollbar->scrollbar());
+ }
+}
+
+void ScrollbarGroup::scrollbarDestroyed(WebScrollbarImpl* scrollbar)
+{
+ if (scrollbar == m_horizontalScrollbar) {
+ willRemoveHorizontalScrollbar(scrollbar->scrollbar());
+ m_horizontalScrollbar = 0;
+ } else {
+ willRemoveVerticalScrollbar(scrollbar->scrollbar());
+ m_verticalScrollbar = 0;
+ }
+}
+
+void ScrollbarGroup::setLastMousePosition(const IntPoint& point)
+{
+ m_lastMousePosition = point;
+}
+
+int ScrollbarGroup::scrollSize(WebCore::ScrollbarOrientation orientation) const
+{
+ WebScrollbarImpl* webScrollbar = orientation == HorizontalScrollbar ? m_horizontalScrollbar : m_verticalScrollbar;
+ if (!webScrollbar)
+ return 0;
+ Scrollbar* scrollbar = webScrollbar->scrollbar();
+ return scrollbar->totalSize() - scrollbar->visibleSize();
+}
+
+int ScrollbarGroup::scrollPosition(Scrollbar* scrollbar) const
+{
+ WebScrollbarImpl* webScrollbar = scrollbar->orientation() == HorizontalScrollbar ? m_horizontalScrollbar : m_verticalScrollbar;
+ if (!webScrollbar)
+ return 0;
+ return webScrollbar->scrollOffset();
+}
+
+void ScrollbarGroup::setScrollOffset(const IntPoint& offset)
+{
+ if (m_horizontalScrollbar && m_horizontalScrollbar->scrollOffset() != offset.x())
+ m_horizontalScrollbar->setScrollOffset(offset.x());
+ else if (m_verticalScrollbar && m_verticalScrollbar->scrollOffset() != offset.y())
+ m_verticalScrollbar->setScrollOffset(offset.y());
+}
+
+void ScrollbarGroup::invalidateScrollbarRect(Scrollbar* scrollbar, const IntRect& rect)
+{
+ if (m_horizontalScrollbar && scrollbar == m_horizontalScrollbar->scrollbar())
+ m_horizontalScrollbar->invalidateScrollbarRect(rect);
+ else if (m_verticalScrollbar && scrollbar == m_verticalScrollbar->scrollbar())
+ m_verticalScrollbar->invalidateScrollbarRect(rect);
+}
+
+void ScrollbarGroup::invalidateScrollCornerRect(const IntRect&)
+{
+}
+
+bool ScrollbarGroup::isActive() const
+{
+ return true;
+}
+
+ScrollableArea* ScrollbarGroup::enclosingScrollableArea() const
+{
+ // FIXME: Return a parent scrollable area that can be scrolled.
+ return 0;
+}
+
+bool ScrollbarGroup::isScrollCornerVisible() const
+{
+ return false;
+}
+
+void ScrollbarGroup::getTickmarks(Vector<IntRect>& tickmarks) const
+{
+ if (m_verticalScrollbar)
+ m_verticalScrollbar->getTickmarks(tickmarks);
+}
+
+IntPoint ScrollbarGroup::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntPoint& parentPoint) const
+{
+ if (m_horizontalScrollbar && scrollbar == m_horizontalScrollbar->scrollbar())
+ return m_horizontalScrollbar->convertFromContainingViewToScrollbar(parentPoint);
+ if (m_verticalScrollbar && scrollbar == m_verticalScrollbar->scrollbar())
+ return m_verticalScrollbar->convertFromContainingViewToScrollbar(parentPoint);
+ WEBKIT_ASSERT_NOT_REACHED();
+ return IntPoint();
+}
+
+Scrollbar* ScrollbarGroup::horizontalScrollbar() const
+{
+ return m_horizontalScrollbar ? m_horizontalScrollbar->scrollbar() : 0;
+}
+
+Scrollbar* ScrollbarGroup::verticalScrollbar() const
+{
+ return m_verticalScrollbar ? m_verticalScrollbar->scrollbar() : 0;
+}
+
+IntPoint ScrollbarGroup::scrollPosition() const
+{
+ int x = m_horizontalScrollbar ? m_horizontalScrollbar->scrollOffset() : 0;
+ int y = m_verticalScrollbar ? m_verticalScrollbar->scrollOffset() : 0;
+ return IntPoint(x, y);
+}
+
+IntPoint ScrollbarGroup::minimumScrollPosition() const
+{
+ return IntPoint();
+}
+
+IntPoint ScrollbarGroup::maximumScrollPosition() const
+{
+ return IntPoint(contentsSize().width() - visibleWidth(), contentsSize().height() - visibleHeight());
+}
+
+int ScrollbarGroup::visibleHeight() const
+{
+ if (m_verticalScrollbar)
+ return m_verticalScrollbar->scrollbar()->height();
+ if (m_horizontalScrollbar)
+ return m_horizontalScrollbar->scrollbar()->height();
+ WEBKIT_ASSERT_NOT_REACHED();
+ return 0;
+}
+
+int ScrollbarGroup::visibleWidth() const
+{
+ if (m_horizontalScrollbar)
+ return m_horizontalScrollbar->scrollbar()->width();
+ if (m_verticalScrollbar)
+ return m_verticalScrollbar->scrollbar()->width();
+ WEBKIT_ASSERT_NOT_REACHED();
+ return 0;
+}
+
+IntSize ScrollbarGroup::contentsSize() const
+{
+ IntSize size;
+ if (m_horizontalScrollbar)
+ size.setWidth(m_horizontalScrollbar->scrollbar()->totalSize());
+ else if (m_verticalScrollbar) {
+ size.setWidth(m_verticalScrollbar->scrollbar()->x());
+ if (m_verticalScrollbar->scrollbar()->isOverlayScrollbar())
+ size.expand(WebScrollbar::defaultThickness(), 0);
+ }
+ if (m_verticalScrollbar)
+ size.setHeight(m_verticalScrollbar->scrollbar()->totalSize());
+ else if (m_horizontalScrollbar) {
+ size.setHeight(m_horizontalScrollbar->scrollbar()->y());
+ if (m_horizontalScrollbar->scrollbar()->isOverlayScrollbar())
+ size.expand(0, WebScrollbar::defaultThickness());
+ }
+ return size;
+}
+
+IntSize ScrollbarGroup::overhangAmount() const
+{
+ return IntSize();
+}
+
+IntPoint ScrollbarGroup::currentMousePosition() const
+{
+ return m_lastMousePosition;
+}
+
+bool ScrollbarGroup::shouldSuspendScrollAnimations() const
+{
+ return false;
+}
+
+void ScrollbarGroup::scrollbarStyleChanged()
+{
+ if (m_horizontalScrollbar)
+ m_horizontalScrollbar->scrollbarStyleChanged();
+ if (m_verticalScrollbar)
+ m_verticalScrollbar->scrollbarStyleChanged();
+}
+
+bool ScrollbarGroup::isOnActivePage() const
+{
+ return true;
+}
+
+void ScrollbarGroup::disconnectFromPage()
+{
+ m_page = 0;
+}
+
+} // namespace WebKit
Property changes on: third_party\WebKit\Source\WebKit\chromium\src\ScrollbarGroup.cpp
___________________________________________________________________
Added: svn:eol-style
+ LF

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