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Unified Diff: third_party/WebKit/WebCore/rendering/RenderMarquee.cpp

Issue 21165: Revert the merge. Mac build is mysteriously broken. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 10 months ago
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Index: third_party/WebKit/WebCore/rendering/RenderMarquee.cpp
===================================================================
--- third_party/WebKit/WebCore/rendering/RenderMarquee.cpp (revision 9383)
+++ third_party/WebKit/WebCore/rendering/RenderMarquee.cpp (working copy)
@@ -1,312 +1,311 @@
-/*
- * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
- *
- * Portions are Copyright (C) 1998 Netscape Communications Corporation.
- *
- * Other contributors:
- * Robert O'Callahan <roc+@cs.cmu.edu>
- * David Baron <dbaron@fas.harvard.edu>
- * Christian Biesinger <cbiesinger@web.de>
- * Randall Jesup <rjesup@wgate.com>
- * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
- * Josh Soref <timeless@mac.com>
- * Boris Zbarsky <bzbarsky@mit.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Alternatively, the contents of this file may be used under the terms
- * of either the Mozilla Public License Version 1.1, found at
- * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
- * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
- * (the "GPL"), in which case the provisions of the MPL or the GPL are
- * applicable instead of those above. If you wish to allow use of your
- * version of this file only under the terms of one of those two
- * licenses (the MPL or the GPL) and not to allow others to use your
- * version of this file under the LGPL, indicate your decision by
- * deletingthe provisions above and replace them with the notice and
- * other provisions required by the MPL or the GPL, as the case may be.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under any of the LGPL, the MPL or the GPL.
- */
-
-#include "config.h"
-
-#include "RenderMarquee.h"
-
-#include "FrameView.h"
-#include "HTMLMarqueeElement.h"
-#include "HTMLNames.h"
-#include "RenderLayer.h"
-
-using namespace std;
-
-namespace WebCore {
-
-using namespace HTMLNames;
-
-RenderMarquee::RenderMarquee(RenderLayer* l)
- : m_layer(l), m_currentLoop(0)
- , m_totalLoops(0)
- , m_timer(this, &RenderMarquee::timerFired)
- , m_start(0), m_end(0), m_speed(0), m_reset(false)
- , m_suspended(false), m_stopped(false), m_direction(MAUTO)
-{
-}
-
-int RenderMarquee::marqueeSpeed() const
-{
- int result = m_layer->renderer()->style()->marqueeSpeed();
- Node* elt = m_layer->renderer()->element();
- if (elt && elt->hasTagName(marqueeTag)) {
- HTMLMarqueeElement* marqueeElt = static_cast<HTMLMarqueeElement*>(elt);
- result = max(result, marqueeElt->minimumDelay());
- }
- return result;
-}
-
-EMarqueeDirection RenderMarquee::direction() const
-{
- // FIXME: Support the CSS3 "auto" value for determining the direction of the marquee.
- // For now just map MAUTO to MBACKWARD
- EMarqueeDirection result = m_layer->renderer()->style()->marqueeDirection();
- TextDirection dir = m_layer->renderer()->style()->direction();
- if (result == MAUTO)
- result = MBACKWARD;
- if (result == MFORWARD)
- result = (dir == LTR) ? MRIGHT : MLEFT;
- if (result == MBACKWARD)
- result = (dir == LTR) ? MLEFT : MRIGHT;
-
- // Now we have the real direction. Next we check to see if the increment is negative.
- // If so, then we reverse the direction.
- Length increment = m_layer->renderer()->style()->marqueeIncrement();
- if (increment.isNegative())
- result = static_cast<EMarqueeDirection>(-result);
-
- return result;
-}
-
-bool RenderMarquee::isHorizontal() const
-{
- return direction() == MLEFT || direction() == MRIGHT;
-}
-
-int RenderMarquee::computePosition(EMarqueeDirection dir, bool stopAtContentEdge)
-{
- RenderBox* box = m_layer->renderBox();
- ASSERT(box);
- RenderStyle* s = box->style();
- if (isHorizontal()) {
- bool ltr = s->direction() == LTR;
- int clientWidth = box->clientWidth();
- int contentWidth = ltr ? box->rightmostPosition(true, false) : box->leftmostPosition(true, false);
- if (ltr)
- contentWidth += (box->paddingRight() - box->borderLeft());
- else {
- contentWidth = box->width() - contentWidth;
- contentWidth += (box->paddingLeft() - box->borderRight());
- }
- if (dir == MRIGHT) {
- if (stopAtContentEdge)
- return max(0, ltr ? (contentWidth - clientWidth) : (clientWidth - contentWidth));
- else
- return ltr ? contentWidth : clientWidth;
- }
- else {
- if (stopAtContentEdge)
- return min(0, ltr ? (contentWidth - clientWidth) : (clientWidth - contentWidth));
- else
- return ltr ? -clientWidth : -contentWidth;
- }
- }
- else {
- int contentHeight = box->lowestPosition(true, false) -
- box->borderTop() + box->paddingBottom();
- int clientHeight = box->clientHeight();
- if (dir == MUP) {
- if (stopAtContentEdge)
- return min(contentHeight - clientHeight, 0);
- else
- return -clientHeight;
- }
- else {
- if (stopAtContentEdge)
- return max(contentHeight - clientHeight, 0);
- else
- return contentHeight;
- }
- }
-}
-
-void RenderMarquee::start()
-{
- if (m_timer.isActive() || m_layer->renderer()->style()->marqueeIncrement().isZero())
- return;
-
- // We may end up propagating a scroll event. It is important that we suspend events until
- // the end of the function since they could delete the layer, including the marquee.
- FrameView* frameView = m_layer->renderer()->document()->view();
- if (frameView)
- frameView->pauseScheduledEvents();
-
- if (!m_suspended && !m_stopped) {
- if (isHorizontal())
- m_layer->scrollToOffset(m_start, 0, false, false);
- else
- m_layer->scrollToOffset(0, m_start, false, false);
- }
- else {
- m_suspended = false;
- m_stopped = false;
- }
-
- m_timer.startRepeating(speed() * 0.001);
-
- if (frameView)
- frameView->resumeScheduledEvents();
-}
-
-void RenderMarquee::suspend()
-{
- m_timer.stop();
- m_suspended = true;
-}
-
-void RenderMarquee::stop()
-{
- m_timer.stop();
- m_stopped = true;
-}
-
-void RenderMarquee::updateMarqueePosition()
-{
- bool activate = (m_totalLoops <= 0 || m_currentLoop < m_totalLoops);
- if (activate) {
- EMarqueeBehavior behavior = m_layer->renderer()->style()->marqueeBehavior();
- m_start = computePosition(direction(), behavior == MALTERNATE);
- m_end = computePosition(reverseDirection(), behavior == MALTERNATE || behavior == MSLIDE);
- if (!m_stopped)
- start();
- }
-}
-
-void RenderMarquee::updateMarqueeStyle()
-{
- RenderStyle* s = m_layer->renderer()->style();
-
- if (m_direction != s->marqueeDirection() || (m_totalLoops != s->marqueeLoopCount() && m_currentLoop >= m_totalLoops))
- m_currentLoop = 0; // When direction changes or our loopCount is a smaller number than our current loop, reset our loop.
-
- m_totalLoops = s->marqueeLoopCount();
- m_direction = s->marqueeDirection();
-
- if (m_layer->renderer()->isHTMLMarquee()) {
- // Hack for WinIE. In WinIE, a value of 0 or lower for the loop count for SLIDE means to only do
- // one loop.
- if (m_totalLoops <= 0 && s->marqueeBehavior() == MSLIDE)
- m_totalLoops = 1;
-
- // Hack alert: Set the white-space value to nowrap for horizontal marquees with inline children, thus ensuring
- // all the text ends up on one line by default. Limit this hack to the <marquee> element to emulate
- // WinIE's behavior. Someone using CSS3 can use white-space: nowrap on their own to get this effect.
- // Second hack alert: Set the text-align back to auto. WinIE completely ignores text-align on the
- // marquee element.
- // FIXME: Bring these up with the CSS WG.
- if (isHorizontal() && m_layer->renderer()->childrenInline()) {
- s->setWhiteSpace(NOWRAP);
- s->setTextAlign(TAAUTO);
- }
- }
-
- // Marquee height hack!! Make sure that, if it is a horizontal marquee, the height attribute is overridden
- // if it is smaller than the font size. If it is a vertical marquee and height is not specified, we default
- // to a marquee of 200px.
- if (isHorizontal()) {
- if (s->height().isFixed() && s->height().value() < s->fontSize())
- s->setHeight(Length(s->fontSize(),Fixed));
- } else if (s->height().isAuto()) //vertical marquee with no specified height
- s->setHeight(Length(200, Fixed));
-
- if (speed() != marqueeSpeed()) {
- m_speed = marqueeSpeed();
- if (m_timer.isActive())
- m_timer.startRepeating(speed() * 0.001);
- }
-
- // Check the loop count to see if we should now stop.
- bool activate = (m_totalLoops <= 0 || m_currentLoop < m_totalLoops);
- if (activate && !m_timer.isActive())
- m_layer->renderer()->setNeedsLayout(true);
- else if (!activate && m_timer.isActive())
- m_timer.stop();
-}
-
-void RenderMarquee::timerFired(Timer<RenderMarquee>*)
-{
- if (m_layer->renderer()->needsLayout())
- return;
-
- if (m_reset) {
- m_reset = false;
- if (isHorizontal())
- m_layer->scrollToXOffset(m_start);
- else
- m_layer->scrollToYOffset(m_start);
- return;
- }
-
- RenderStyle* s = m_layer->renderer()->style();
-
- int endPoint = m_end;
- int range = m_end - m_start;
- int newPos;
- if (range == 0)
- newPos = m_end;
- else {
- bool addIncrement = direction() == MUP || direction() == MLEFT;
- bool isReversed = s->marqueeBehavior() == MALTERNATE && m_currentLoop % 2;
- if (isReversed) {
- // We're going in the reverse direction.
- endPoint = m_start;
- range = -range;
- addIncrement = !addIncrement;
- }
- bool positive = range > 0;
- int clientSize = (isHorizontal() ? m_layer->renderBox()->clientWidth() : m_layer->renderBox()->clientHeight());
- int increment = max(1, abs(m_layer->renderer()->style()->marqueeIncrement().calcValue(clientSize)));
- int currentPos = (isHorizontal() ? m_layer->scrollXOffset() : m_layer->scrollYOffset());
- newPos = currentPos + (addIncrement ? increment : -increment);
- if (positive)
- newPos = min(newPos, endPoint);
- else
- newPos = max(newPos, endPoint);
- }
-
- if (newPos == endPoint) {
- m_currentLoop++;
- if (m_totalLoops > 0 && m_currentLoop >= m_totalLoops)
- m_timer.stop();
- else if (s->marqueeBehavior() != MALTERNATE)
- m_reset = true;
- }
-
- if (isHorizontal())
- m_layer->scrollToXOffset(newPos);
- else
- m_layer->scrollToYOffset(newPos);
-}
-
-} // namespace WebCore
-
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Portions are Copyright (C) 1998 Netscape Communications Corporation.
+ *
+ * Other contributors:
+ * Robert O'Callahan <roc+@cs.cmu.edu>
+ * David Baron <dbaron@fas.harvard.edu>
+ * Christian Biesinger <cbiesinger@web.de>
+ * Randall Jesup <rjesup@wgate.com>
+ * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
+ * Josh Soref <timeless@mac.com>
+ * Boris Zbarsky <bzbarsky@mit.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Alternatively, the contents of this file may be used under the terms
+ * of either the Mozilla Public License Version 1.1, found at
+ * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
+ * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
+ * (the "GPL"), in which case the provisions of the MPL or the GPL are
+ * applicable instead of those above. If you wish to allow use of your
+ * version of this file only under the terms of one of those two
+ * licenses (the MPL or the GPL) and not to allow others to use your
+ * version of this file under the LGPL, indicate your decision by
+ * deletingthe provisions above and replace them with the notice and
+ * other provisions required by the MPL or the GPL, as the case may be.
+ * If you do not delete the provisions above, a recipient may use your
+ * version of this file under any of the LGPL, the MPL or the GPL.
+ */
+
+#include "config.h"
+
+#include "RenderMarquee.h"
+
+#include "FrameView.h"
+#include "HTMLMarqueeElement.h"
+#include "HTMLNames.h"
+#include "RenderLayer.h"
+
+using namespace std;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+RenderMarquee::RenderMarquee(RenderLayer* l)
+ : m_layer(l), m_currentLoop(0)
+ , m_totalLoops(0)
+ , m_timer(this, &RenderMarquee::timerFired)
+ , m_start(0), m_end(0), m_speed(0), m_reset(false)
+ , m_suspended(false), m_stopped(false), m_direction(MAUTO)
+{
+}
+
+int RenderMarquee::marqueeSpeed() const
+{
+ int result = m_layer->renderer()->style()->marqueeSpeed();
+ Node* elt = m_layer->renderer()->element();
+ if (elt && elt->hasTagName(marqueeTag)) {
+ HTMLMarqueeElement* marqueeElt = static_cast<HTMLMarqueeElement*>(elt);
+ result = max(result, marqueeElt->minimumDelay());
+ }
+ return result;
+}
+
+EMarqueeDirection RenderMarquee::direction() const
+{
+ // FIXME: Support the CSS3 "auto" value for determining the direction of the marquee.
+ // For now just map MAUTO to MBACKWARD
+ EMarqueeDirection result = m_layer->renderer()->style()->marqueeDirection();
+ TextDirection dir = m_layer->renderer()->style()->direction();
+ if (result == MAUTO)
+ result = MBACKWARD;
+ if (result == MFORWARD)
+ result = (dir == LTR) ? MRIGHT : MLEFT;
+ if (result == MBACKWARD)
+ result = (dir == LTR) ? MLEFT : MRIGHT;
+
+ // Now we have the real direction. Next we check to see if the increment is negative.
+ // If so, then we reverse the direction.
+ Length increment = m_layer->renderer()->style()->marqueeIncrement();
+ if (increment.isNegative())
+ result = static_cast<EMarqueeDirection>(-result);
+
+ return result;
+}
+
+bool RenderMarquee::isHorizontal() const
+{
+ return direction() == MLEFT || direction() == MRIGHT;
+}
+
+int RenderMarquee::computePosition(EMarqueeDirection dir, bool stopAtContentEdge)
+{
+ RenderBox* o = m_layer->renderer();
+ RenderStyle* s = o->style();
+ if (isHorizontal()) {
+ bool ltr = s->direction() == LTR;
+ int clientWidth = o->clientWidth();
+ int contentWidth = ltr ? o->rightmostPosition(true, false) : o->leftmostPosition(true, false);
+ if (ltr)
+ contentWidth += (o->paddingRight() - o->borderLeft());
+ else {
+ contentWidth = o->width() - contentWidth;
+ contentWidth += (o->paddingLeft() - o->borderRight());
+ }
+ if (dir == MRIGHT) {
+ if (stopAtContentEdge)
+ return max(0, ltr ? (contentWidth - clientWidth) : (clientWidth - contentWidth));
+ else
+ return ltr ? contentWidth : clientWidth;
+ }
+ else {
+ if (stopAtContentEdge)
+ return min(0, ltr ? (contentWidth - clientWidth) : (clientWidth - contentWidth));
+ else
+ return ltr ? -clientWidth : -contentWidth;
+ }
+ }
+ else {
+ int contentHeight = m_layer->renderer()->lowestPosition(true, false) -
+ m_layer->renderer()->borderTop() + m_layer->renderer()->paddingBottom();
+ int clientHeight = m_layer->renderer()->clientHeight();
+ if (dir == MUP) {
+ if (stopAtContentEdge)
+ return min(contentHeight - clientHeight, 0);
+ else
+ return -clientHeight;
+ }
+ else {
+ if (stopAtContentEdge)
+ return max(contentHeight - clientHeight, 0);
+ else
+ return contentHeight;
+ }
+ }
+}
+
+void RenderMarquee::start()
+{
+ if (m_timer.isActive() || m_layer->renderer()->style()->marqueeIncrement().isZero())
+ return;
+
+ // We may end up propagating a scroll event. It is important that we suspend events until
+ // the end of the function since they could delete the layer, including the marquee.
+ FrameView* frameView = m_layer->renderer()->document()->view();
+ if (frameView)
+ frameView->pauseScheduledEvents();
+
+ if (!m_suspended && !m_stopped) {
+ if (isHorizontal())
+ m_layer->scrollToOffset(m_start, 0, false, false);
+ else
+ m_layer->scrollToOffset(0, m_start, false, false);
+ }
+ else {
+ m_suspended = false;
+ m_stopped = false;
+ }
+
+ m_timer.startRepeating(speed() * 0.001);
+
+ if (frameView)
+ frameView->resumeScheduledEvents();
+}
+
+void RenderMarquee::suspend()
+{
+ m_timer.stop();
+ m_suspended = true;
+}
+
+void RenderMarquee::stop()
+{
+ m_timer.stop();
+ m_stopped = true;
+}
+
+void RenderMarquee::updateMarqueePosition()
+{
+ bool activate = (m_totalLoops <= 0 || m_currentLoop < m_totalLoops);
+ if (activate) {
+ EMarqueeBehavior behavior = m_layer->renderer()->style()->marqueeBehavior();
+ m_start = computePosition(direction(), behavior == MALTERNATE);
+ m_end = computePosition(reverseDirection(), behavior == MALTERNATE || behavior == MSLIDE);
+ if (!m_stopped)
+ start();
+ }
+}
+
+void RenderMarquee::updateMarqueeStyle()
+{
+ RenderStyle* s = m_layer->renderer()->style();
+
+ if (m_direction != s->marqueeDirection() || (m_totalLoops != s->marqueeLoopCount() && m_currentLoop >= m_totalLoops))
+ m_currentLoop = 0; // When direction changes or our loopCount is a smaller number than our current loop, reset our loop.
+
+ m_totalLoops = s->marqueeLoopCount();
+ m_direction = s->marqueeDirection();
+
+ if (m_layer->renderer()->isHTMLMarquee()) {
+ // Hack for WinIE. In WinIE, a value of 0 or lower for the loop count for SLIDE means to only do
+ // one loop.
+ if (m_totalLoops <= 0 && s->marqueeBehavior() == MSLIDE)
+ m_totalLoops = 1;
+
+ // Hack alert: Set the white-space value to nowrap for horizontal marquees with inline children, thus ensuring
+ // all the text ends up on one line by default. Limit this hack to the <marquee> element to emulate
+ // WinIE's behavior. Someone using CSS3 can use white-space: nowrap on their own to get this effect.
+ // Second hack alert: Set the text-align back to auto. WinIE completely ignores text-align on the
+ // marquee element.
+ // FIXME: Bring these up with the CSS WG.
+ if (isHorizontal() && m_layer->renderer()->childrenInline()) {
+ s->setWhiteSpace(NOWRAP);
+ s->setTextAlign(TAAUTO);
+ }
+ }
+
+ // Marquee height hack!! Make sure that, if it is a horizontal marquee, the height attribute is overridden
+ // if it is smaller than the font size. If it is a vertical marquee and height is not specified, we default
+ // to a marquee of 200px.
+ if (isHorizontal()) {
+ if (s->height().isFixed() && s->height().value() < s->fontSize())
+ s->setHeight(Length(s->fontSize(),Fixed));
+ } else if (s->height().isAuto()) //vertical marquee with no specified height
+ s->setHeight(Length(200, Fixed));
+
+ if (speed() != marqueeSpeed()) {
+ m_speed = marqueeSpeed();
+ if (m_timer.isActive())
+ m_timer.startRepeating(speed() * 0.001);
+ }
+
+ // Check the loop count to see if we should now stop.
+ bool activate = (m_totalLoops <= 0 || m_currentLoop < m_totalLoops);
+ if (activate && !m_timer.isActive())
+ m_layer->renderer()->setNeedsLayout(true);
+ else if (!activate && m_timer.isActive())
+ m_timer.stop();
+}
+
+void RenderMarquee::timerFired(Timer<RenderMarquee>*)
+{
+ if (m_layer->renderer()->needsLayout())
+ return;
+
+ if (m_reset) {
+ m_reset = false;
+ if (isHorizontal())
+ m_layer->scrollToXOffset(m_start);
+ else
+ m_layer->scrollToYOffset(m_start);
+ return;
+ }
+
+ RenderStyle* s = m_layer->renderer()->style();
+
+ int endPoint = m_end;
+ int range = m_end - m_start;
+ int newPos;
+ if (range == 0)
+ newPos = m_end;
+ else {
+ bool addIncrement = direction() == MUP || direction() == MLEFT;
+ bool isReversed = s->marqueeBehavior() == MALTERNATE && m_currentLoop % 2;
+ if (isReversed) {
+ // We're going in the reverse direction.
+ endPoint = m_start;
+ range = -range;
+ addIncrement = !addIncrement;
+ }
+ bool positive = range > 0;
+ int clientSize = (isHorizontal() ? m_layer->renderer()->clientWidth() : m_layer->renderer()->clientHeight());
+ int increment = max(1, abs(m_layer->renderer()->style()->marqueeIncrement().calcValue(clientSize)));
+ int currentPos = (isHorizontal() ? m_layer->scrollXOffset() : m_layer->scrollYOffset());
+ newPos = currentPos + (addIncrement ? increment : -increment);
+ if (positive)
+ newPos = min(newPos, endPoint);
+ else
+ newPos = max(newPos, endPoint);
+ }
+
+ if (newPos == endPoint) {
+ m_currentLoop++;
+ if (m_totalLoops > 0 && m_currentLoop >= m_totalLoops)
+ m_timer.stop();
+ else if (s->marqueeBehavior() != MALTERNATE)
+ m_reset = true;
+ }
+
+ if (isHorizontal())
+ m_layer->scrollToXOffset(newPos);
+ else
+ m_layer->scrollToYOffset(newPos);
+}
+
+} // namespace WebCore
+
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