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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
commit648161bb0edfc3d43db63caed5cc5213bc6cb78f (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /WebCore/dom/MouseRelatedEvent.cpp
parenta65af38181ac7d34544586bdb5cd004de93897ad (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'WebCore/dom/MouseRelatedEvent.cpp')
-rw-r--r--WebCore/dom/MouseRelatedEvent.cpp186
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diff --git a/WebCore/dom/MouseRelatedEvent.cpp b/WebCore/dom/MouseRelatedEvent.cpp
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--- a/WebCore/dom/MouseRelatedEvent.cpp
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-/*
- * Copyright (C) 2001 Peter Kelly (pmk@post.com)
- * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
- * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
- * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "MouseRelatedEvent.h"
-
-#include "DOMWindow.h"
-#include "Document.h"
-#include "Frame.h"
-#include "FrameView.h"
-#include "RenderLayer.h"
-#include "RenderObject.h"
-
-namespace WebCore {
-
-MouseRelatedEvent::MouseRelatedEvent()
- : m_screenX(0)
- , m_screenY(0)
- , m_clientX(0)
- , m_clientY(0)
- , m_pageX(0)
- , m_pageY(0)
- , m_layerX(0)
- , m_layerY(0)
- , m_offsetX(0)
- , m_offsetY(0)
- , m_isSimulated(false)
-{
-}
-
-static int contentsX(AbstractView* abstractView)
-{
- if (!abstractView)
- return 0;
- Frame* frame = abstractView->frame();
- if (!frame)
- return 0;
- FrameView* frameView = frame->view();
- if (!frameView)
- return 0;
- return frameView->scrollX();
-}
-
-static int contentsY(AbstractView* abstractView)
-{
- if (!abstractView)
- return 0;
- Frame* frame = abstractView->frame();
- if (!frame)
- return 0;
- FrameView* frameView = frame->view();
- if (!frameView)
- return 0;
- return frameView->scrollY();
-}
-
-MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtr<AbstractView> viewArg,
- int detail, int screenX, int screenY, int pageX, int pageY,
- bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool isSimulated)
- : UIEventWithKeyState(eventType, canBubble, cancelable, viewArg, detail, ctrlKey, altKey, shiftKey, metaKey)
- , m_screenX(screenX)
- , m_screenY(screenY)
- , m_clientX(pageX - contentsX(view()))
- , m_clientY(pageY - contentsY(view()))
- , m_pageX(pageX)
- , m_pageY(pageY)
- , m_isSimulated(isSimulated)
-{
- initCoordinates();
-}
-
-void MouseRelatedEvent::initCoordinates()
-{
- // Set up initial values for coordinates.
- // Correct values can't be computed until we have at target, so receivedTarget
- // does the "real" computation.
- m_layerX = m_pageX;
- m_layerY = m_pageY;
- m_offsetX = m_pageX;
- m_offsetY = m_pageY;
-}
-
-void MouseRelatedEvent::initCoordinates(int clientX, int clientY)
-{
- // Set up initial values for coordinates.
- // Correct values can't be computed until we have at target, so receivedTarget
- // does the "real" computation.
- m_clientX = clientX;
- m_clientY = clientY;
- m_pageX = clientX + contentsX(view());
- m_pageY = clientY + contentsY(view());
- m_layerX = m_pageX;
- m_layerY = m_pageY;
- m_offsetX = m_pageX;
- m_offsetY = m_pageY;
-}
-
-void MouseRelatedEvent::receivedTarget()
-{
- ASSERT(target());
- Node* targ = target()->toNode();
- if (!targ)
- return;
-
- // Compute coordinates that are based on the target.
- m_layerX = m_pageX;
- m_layerY = m_pageY;
- m_offsetX = m_pageX;
- m_offsetY = m_pageY;
-
- // Must have an updated render tree for this math to work correctly.
- targ->document()->updateRendering();
-
- // Adjust offsetX/Y to be relative to the target's position.
- if (!isSimulated()) {
- if (RenderObject* r = targ->renderer()) {
- int rx, ry;
- if (r->absolutePosition(rx, ry)) {
- m_offsetX -= rx;
- m_offsetY -= ry;
- }
- }
- }
-
- // Adjust layerX/Y to be relative to the layer.
- // FIXME: We're pretty sure this is the wrong defintion of "layer."
- // Our RenderLayer is a more modern concept, and layerX/Y is some
- // other notion about groups of elements (left over from the Netscape 4 days?);
- // we should test and fix this.
- Node* n = targ;
- while (n && !n->renderer())
- n = n->parent();
- if (n) {
- RenderLayer* layer = n->renderer()->enclosingLayer();
- layer->updateLayerPosition();
- for (; layer; layer = layer->parent()) {
- m_layerX -= layer->xPos();
- m_layerY -= layer->yPos();
- }
- }
-}
-
-int MouseRelatedEvent::pageX() const
-{
- return m_pageX;
-}
-
-int MouseRelatedEvent::pageY() const
-{
- return m_pageY;
-}
-
-int MouseRelatedEvent::x() const
-{
- // FIXME: This is not correct.
- // See Microsoft documentation and <http://www.quirksmode.org/dom/w3c_events.html>.
- return m_clientX;
-}
-
-int MouseRelatedEvent::y() const
-{
- // FIXME: This is not correct.
- // See Microsoft documentation and <http://www.quirksmode.org/dom/w3c_events.html>.
- return m_clientY;
-}
-
-} // namespace WebCore