| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
| 3 * Copyright (C) 2000 Dirk Mueller (mueller@kde.org) | |
| 4 * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved. | |
| 5 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 6 * | |
| 7 * This library is free software; you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Library General Public | |
| 9 * License as published by the Free Software Foundation; either | |
| 10 * version 2 of the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This library is distributed in the hope that it will be useful, | |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Library General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Library General Public License | |
| 18 * along with this library; see the file COPYING.LIB. If not, write to | |
| 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 20 * Boston, MA 02110-1301, USA. | |
| 21 * | |
| 22 */ | |
| 23 | |
| 24 #include "config.h" | |
| 25 #include "core/rendering/RenderWidget.h" | |
| 26 | |
| 27 #include "core/frame/LocalFrame.h" | |
| 28 #include "core/rendering/GraphicsContextAnnotator.h" | |
| 29 #include "core/rendering/HitTestResult.h" | |
| 30 #include "core/rendering/RenderLayer.h" | |
| 31 #include "core/rendering/RenderView.h" | |
| 32 #include "core/rendering/compositing/CompositedLayerMapping.h" | |
| 33 #include "core/rendering/compositing/RenderLayerCompositor.h" | |
| 34 #include "wtf/HashMap.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 RenderWidget::RenderWidget(Element* element) | |
| 39 : RenderReplaced(element) | |
| 40 #if !ENABLE(OILPAN) | |
| 41 // Reference counting is used to prevent the widget from being | |
| 42 // destroyed while inside the Widget code, which might not be | |
| 43 // able to handle that. | |
| 44 , m_refCount(1) | |
| 45 #endif | |
| 46 { | |
| 47 ASSERT(element); | |
| 48 frameView()->addWidget(this); | |
| 49 } | |
| 50 | |
| 51 void RenderWidget::willBeDestroyed() | |
| 52 { | |
| 53 frameView()->removeWidget(this); | |
| 54 RenderReplaced::willBeDestroyed(); | |
| 55 } | |
| 56 | |
| 57 void RenderWidget::destroy() | |
| 58 { | |
| 59 #if ENABLE(ASSERT) && ENABLE(OILPAN) | |
| 60 ASSERT(!m_didCallDestroy); | |
| 61 m_didCallDestroy = true; | |
| 62 #endif | |
| 63 willBeDestroyed(); | |
| 64 clearNode(); | |
| 65 #if ENABLE(OILPAN) | |
| 66 // In Oilpan, postDestroy doesn't delete |this|. So calling it here is safe | |
| 67 // though |this| will be referred in FrameView. | |
| 68 postDestroy(); | |
| 69 #else | |
| 70 deref(); | |
| 71 #endif | |
| 72 } | |
| 73 | |
| 74 RenderWidget::~RenderWidget() | |
| 75 { | |
| 76 #if !ENABLE(OILPAN) | |
| 77 ASSERT(m_refCount <= 0); | |
| 78 #endif | |
| 79 } | |
| 80 | |
| 81 Widget* RenderWidget::widget() const | |
| 82 { | |
| 83 return 0; | |
| 84 } | |
| 85 | |
| 86 // Widgets are always placed on integer boundaries, so rounding the size is actu
ally | |
| 87 // the desired behavior. This function is here because it's otherwise seldom wha
t we | |
| 88 // want to do with a LayoutRect. | |
| 89 static inline IntRect roundedIntRect(const LayoutRect& rect) | |
| 90 { | |
| 91 return IntRect(roundedIntPoint(rect.location()), roundedIntSize(rect.size())
); | |
| 92 } | |
| 93 | |
| 94 bool RenderWidget::setWidgetGeometry(const LayoutRect& frame) | |
| 95 { | |
| 96 if (!node()) | |
| 97 return false; | |
| 98 | |
| 99 Widget* widget = this->widget(); | |
| 100 ASSERT(widget); | |
| 101 | |
| 102 IntRect newFrame = roundedIntRect(frame); | |
| 103 | |
| 104 if (widget->frameRect() == newFrame) | |
| 105 return false; | |
| 106 | |
| 107 RefPtr<RenderWidget> protector(this); | |
| 108 RefPtr<Node> protectedNode(node()); | |
| 109 widget->setFrameRect(newFrame); | |
| 110 return widget->frameRect().size() != newFrame.size(); | |
| 111 } | |
| 112 | |
| 113 bool RenderWidget::updateWidgetGeometry() | |
| 114 { | |
| 115 Widget* widget = this->widget(); | |
| 116 ASSERT(widget); | |
| 117 | |
| 118 LayoutRect contentBox = contentBoxRect(); | |
| 119 LayoutRect absoluteContentBox(localToAbsoluteQuad(FloatQuad(contentBox)).bou
ndingBox()); | |
| 120 if (widget->isFrameView()) { | |
| 121 contentBox.setLocation(absoluteContentBox.location()); | |
| 122 return setWidgetGeometry(contentBox); | |
| 123 } | |
| 124 | |
| 125 return setWidgetGeometry(absoluteContentBox); | |
| 126 } | |
| 127 | |
| 128 void RenderWidget::layout() | |
| 129 { | |
| 130 ASSERT(needsLayout()); | |
| 131 | |
| 132 clearNeedsLayout(); | |
| 133 } | |
| 134 | |
| 135 void RenderWidget::styleDidChange(StyleDifference diff, const RenderStyle* oldSt
yle) | |
| 136 { | |
| 137 RenderReplaced::styleDidChange(diff, oldStyle); | |
| 138 } | |
| 139 | |
| 140 void RenderWidget::paintContents(PaintInfo& paintInfo, const LayoutPoint& paintO
ffset) | |
| 141 { | |
| 142 LayoutPoint adjustedPaintOffset = paintOffset + location(); | |
| 143 | |
| 144 Widget* widget = this->widget(); | |
| 145 ASSERT(widget); | |
| 146 | |
| 147 // Tell the widget to paint now. This is the only time the widget is allowed | |
| 148 // to paint itself. That way it will composite properly with z-indexed layer
s. | |
| 149 IntPoint widgetLocation = widget->frameRect().location(); | |
| 150 IntPoint paintLocation(roundToInt(adjustedPaintOffset.x() + borderLeft() + p
addingLeft()), | |
| 151 roundToInt(adjustedPaintOffset.y() + borderTop() + paddingTop())); | |
| 152 IntRect paintRect = paintInfo.rect; | |
| 153 | |
| 154 IntSize widgetPaintOffset = paintLocation - widgetLocation; | |
| 155 // When painting widgets into compositing layers, tx and ty are relative to
the enclosing compositing layer, | |
| 156 // not the root. In this case, shift the CTM and adjust the paintRect to be
root-relative to fix plug-in drawing. | |
| 157 if (!widgetPaintOffset.isZero()) { | |
| 158 paintInfo.context->translate(widgetPaintOffset.width(), widgetPaintOffse
t.height()); | |
| 159 paintRect.move(-widgetPaintOffset); | |
| 160 } | |
| 161 widget->paint(paintInfo.context, paintRect); | |
| 162 | |
| 163 if (!widgetPaintOffset.isZero()) | |
| 164 paintInfo.context->translate(-widgetPaintOffset.width(), -widgetPaintOff
set.height()); | |
| 165 } | |
| 166 | |
| 167 void RenderWidget::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset) | |
| 168 { | |
| 169 ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this); | |
| 170 | |
| 171 if (!shouldPaint(paintInfo, paintOffset)) | |
| 172 return; | |
| 173 | |
| 174 LayoutPoint adjustedPaintOffset = paintOffset + location(); | |
| 175 | |
| 176 if (hasBoxDecorationBackground() && (paintInfo.phase == PaintPhaseForeground
|| paintInfo.phase == PaintPhaseSelection)) | |
| 177 paintBoxDecorationBackground(paintInfo, adjustedPaintOffset); | |
| 178 | |
| 179 if (paintInfo.phase == PaintPhaseMask) { | |
| 180 paintMask(paintInfo, adjustedPaintOffset); | |
| 181 return; | |
| 182 } | |
| 183 | |
| 184 if ((paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSe
lfOutline) && style()->hasOutline()) | |
| 185 paintOutline(paintInfo, LayoutRect(adjustedPaintOffset, size())); | |
| 186 | |
| 187 if (paintInfo.phase != PaintPhaseForeground) | |
| 188 return; | |
| 189 | |
| 190 if (style()->hasBorderRadius()) { | |
| 191 LayoutRect borderRect = LayoutRect(adjustedPaintOffset, size()); | |
| 192 | |
| 193 if (borderRect.isEmpty()) | |
| 194 return; | |
| 195 | |
| 196 // Push a clip if we have a border radius, since we want to round the fo
reground content that gets painted. | |
| 197 paintInfo.context->save(); | |
| 198 RoundedRect roundedInnerRect = style()->getRoundedInnerBorderFor(borderR
ect, | |
| 199 paddingTop() + borderTop(), paddingBottom() + borderBottom(), paddin
gLeft() + borderLeft(), paddingRight() + borderRight(), true, true); | |
| 200 clipRoundedInnerRect(paintInfo.context, borderRect, roundedInnerRect); | |
| 201 } | |
| 202 | |
| 203 Widget* widget = this->widget(); | |
| 204 if (widget) | |
| 205 paintContents(paintInfo, paintOffset); | |
| 206 | |
| 207 if (style()->hasBorderRadius()) | |
| 208 paintInfo.context->restore(); | |
| 209 | |
| 210 // Paint a partially transparent wash over selected widgets. | |
| 211 if (isSelected()) { | |
| 212 LayoutRect rect = localSelectionRect(); | |
| 213 rect.moveBy(adjustedPaintOffset); | |
| 214 paintInfo.context->fillRect(pixelSnappedIntRect(rect), selectionBackgrou
ndColor()); | |
| 215 } | |
| 216 | |
| 217 if (canResize()) | |
| 218 layer()->scrollableArea()->paintResizer(paintInfo.context, roundedIntPoi
nt(adjustedPaintOffset), paintInfo.rect); | |
| 219 } | |
| 220 | |
| 221 #if !ENABLE(OILPAN) | |
| 222 void RenderWidget::deref() | |
| 223 { | |
| 224 if (--m_refCount <= 0) | |
| 225 postDestroy(); | |
| 226 } | |
| 227 #endif | |
| 228 | |
| 229 void RenderWidget::updateOnWidgetChange() | |
| 230 { | |
| 231 Widget* widget = this->widget(); | |
| 232 if (!widget) | |
| 233 return; | |
| 234 | |
| 235 if (!style()) | |
| 236 return; | |
| 237 | |
| 238 if (!needsLayout()) | |
| 239 updateWidgetGeometry(); | |
| 240 } | |
| 241 | |
| 242 void RenderWidget::updateWidgetPosition() | |
| 243 { | |
| 244 Widget* widget = this->widget(); | |
| 245 if (!widget || !node()) // Check the node in case destroy() has been called. | |
| 246 return; | |
| 247 | |
| 248 bool boundsChanged = updateWidgetGeometry(); | |
| 249 | |
| 250 // if the frame bounds got changed, or if view needs layout (possibly indica
ting | |
| 251 // content size is wrong) we have to do a layout to set the right widget siz
e | |
| 252 if (widget && widget->isFrameView()) { | |
| 253 FrameView* frameView = toFrameView(widget); | |
| 254 // Check the frame's page to make sure that the frame isn't in the proce
ss of being destroyed. | |
| 255 if ((boundsChanged || frameView->needsLayout()) && frameView->frame().pa
ge()) | |
| 256 frameView->layout(); | |
| 257 } | |
| 258 } | |
| 259 | |
| 260 void RenderWidget::widgetPositionsUpdated() | |
| 261 { | |
| 262 Widget* widget = this->widget(); | |
| 263 if (!widget) | |
| 264 return; | |
| 265 widget->widgetPositionsUpdated(); | |
| 266 } | |
| 267 | |
| 268 bool RenderWidget::nodeAtPoint(const HitTestRequest& request, HitTestResult& res
ult, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedO
ffset, HitTestAction action) | |
| 269 { | |
| 270 bool hadResult = result.innerNode(); | |
| 271 bool inside = RenderReplaced::nodeAtPoint(request, result, locationInContain
er, accumulatedOffset, action); | |
| 272 | |
| 273 // Check to see if we are really over the widget itself (and not just in the
border/padding area). | |
| 274 if ((inside || result.isRectBasedTest()) && !hadResult && result.innerNode()
== node()) | |
| 275 result.setIsOverWidget(contentBoxRect().contains(result.localPoint())); | |
| 276 return inside; | |
| 277 } | |
| 278 | |
| 279 CursorDirective RenderWidget::getCursor(const LayoutPoint& point, Cursor& cursor
) const | |
| 280 { | |
| 281 return RenderReplaced::getCursor(point, cursor); | |
| 282 } | |
| 283 | |
| 284 } // namespace blink | |
| OLD | NEW |
|---|
Chromium Code Reviews
