Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

2 files changed, 217 insertions, 0 deletions

diff --git a/Source/WebCore/html/shadow/SliderThumbElement.cpp b/Source/WebCore/html/shadow/SliderThumbElement.cpp
new file mode 100644
index 0000000..d29d257
--- /dev/null
+++ b/Source/WebCore/html/shadow/SliderThumbElement.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 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 "SliderThumbElement.h"
+
+#include "Event.h"
+#include "Frame.h"
+#include "MouseEvent.h"
+#include "RenderSlider.h"
+
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+#include "TouchEvent.h"
+#endif
+
+namespace WebCore {
+
+void SliderThumbElement::defaultEventHandler(Event* event)
+{
+    if (!event->isMouseEvent()
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+        && !event->isTouchEvent()
+#endif
+        ) {
+        ShadowBlockElement::defaultEventHandler(event);
+        return;
+    }
+
+    MouseEvent* mouseEvent = static_cast<MouseEvent*>(event);
+    bool isLeftButton = mouseEvent->button() == LeftButton;
+    const AtomicString& eventType = event->type();
+
+    if (eventType == eventNames().mousedownEvent && isLeftButton
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+        || eventType == eventNames().touchstartEvent
+#endif
+        ) {
+        if (document()->frame() && renderer()) {
+            RenderSlider* slider = toRenderSlider(renderer()->parent());
+            if (slider) {
+                if (slider->mouseEventIsInThumb(mouseEvent)) {
+                    // We selected the thumb, we want the cursor to always stay at
+                    // the same position relative to the thumb.
+                    m_offsetToThumb = slider->mouseEventOffsetToThumb(mouseEvent);
+                } else {
+                    // We are outside the thumb, move the thumb to the point were
+                    // we clicked. We'll be exactly at the center of the thumb.
+                    m_offsetToThumb.setX(0);
+                    m_offsetToThumb.setY(0);
+                }
+
+                m_inDragMode = true;
+                document()->frame()->eventHandler()->setCapturingMouseEventsNode(shadowHost());
+                event->setDefaultHandled();
+                return;
+            }
+        }
+    } else if (eventType == eventNames().mouseupEvent && isLeftButton
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+               || eventType == eventNames().touchendEvent
+#endif
+               ) {
+        if (m_inDragMode) {
+            if (Frame* frame = document()->frame())
+                frame->eventHandler()->setCapturingMouseEventsNode(0);      
+            m_inDragMode = false;
+            event->setDefaultHandled();
+            return;
+        }
+    } else if (eventType == eventNames().mousemoveEvent
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+               || eventType == eventNames().touchmoveEvent
+#endif
+               ) {
+        if (m_inDragMode && renderer() && renderer()->parent()) {
+            RenderSlider* slider = toRenderSlider(renderer()->parent());
+            if (slider) {
+                FloatPoint curPoint = slider->absoluteToLocal(mouseEvent->absoluteLocation(), false, true);
+#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
+                // Update the position when it is a touch event
+                if (event->isTouchEvent()) {
+                    TouchEvent* touchEvent = static_cast<TouchEvent*>(event);
+                    if (touchEvent && touchEvent->touches() && touchEvent->touches()->item(0)) {
+                        curPoint.setX(touchEvent->touches()->item(0)->pageX());
+                        curPoint.setY(touchEvent->touches()->item(0)->pageY());
+                        curPoint = slider->absoluteToLocal(curPoint, false, true);
+                    }
+                }
+                // Tell the webview that webkit will handle the following move events
+                event->setDefaultPrevented(true);
+#endif
+                IntPoint eventOffset(curPoint.x() + m_offsetToThumb.x(), curPoint.y() + m_offsetToThumb.y());
+                slider->setValueForPosition(slider->positionForOffset(eventOffset));
+                event->setDefaultHandled();
+                return;
+            }
+        }
+    }
+
+    ShadowBlockElement::defaultEventHandler(event);
+}
+
+void SliderThumbElement::detach()
+{
+    if (m_inDragMode) {
+        if (Frame* frame = document()->frame())
+            frame->eventHandler()->setCapturingMouseEventsNode(0);      
+    }
+    ShadowBlockElement::detach();
+}
+
+}
+
diff --git a/Source/WebCore/html/shadow/SliderThumbElement.h b/Source/WebCore/html/shadow/SliderThumbElement.h
new file mode 100644
index 0000000..8205746
--- /dev/null
+++ b/Source/WebCore/html/shadow/SliderThumbElement.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef SliderThumbElement_h
+#define SliderThumbElement_h
+
+#include "FloatPoint.h"
+#include "ShadowElement.h"
+#include <wtf/Forward.h>
+
+namespace WebCore {
+
+class HTMLElement;
+class Event;
+class FloatPoint;
+
+class SliderThumbElement : public ShadowBlockElement {
+public:
+    static PassRefPtr<SliderThumbElement> create(HTMLElement* shadowParent);
+
+    bool inDragMode() const { return m_inDragMode; }
+
+    virtual void defaultEventHandler(Event*);
+    virtual void detach();
+
+private:        
+    SliderThumbElement(HTMLElement* shadowParent);
+
+    FloatPoint m_offsetToThumb;
+    bool m_inDragMode;
+};
+
+inline SliderThumbElement::SliderThumbElement(HTMLElement* shadowParent)
+    : ShadowBlockElement(shadowParent)
+    , m_inDragMode(false)
+{
+}
+
+inline PassRefPtr<SliderThumbElement> SliderThumbElement::create(HTMLElement* shadowParent)
+{
+    return adoptRef(new SliderThumbElement(shadowParent));
+}
+
+}
+
+
+#endif