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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "webkit/plugins/ppapi/ppb_scrollbar_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/message_loop/message_loop.h" | |
| 10 #include "ppapi/c/dev/ppp_scrollbar_dev.h" | |
| 11 #include "ppapi/thunk/thunk.h" | |
| 12 #include "skia/ext/platform_canvas.h" | |
| 13 #include "third_party/WebKit/public/platform/WebCanvas.h" | |
| 14 #include "third_party/WebKit/public/platform/WebRect.h" | |
| 15 #include "third_party/WebKit/public/platform/WebVector.h" | |
| 16 #include "third_party/WebKit/public/web/WebInputEvent.h" | |
| 17 #include "third_party/WebKit/public/web/WebPluginScrollbar.h" | |
| 18 #include "webkit/glue/webkit_glue.h" | |
| 19 #include "webkit/plugins/ppapi/common.h" | |
| 20 #include "webkit/plugins/ppapi/event_conversion.h" | |
| 21 #include "webkit/plugins/ppapi/plugin_module.h" | |
| 22 #include "webkit/plugins/ppapi/ppapi_plugin_instance_impl.h" | |
| 23 #include "webkit/plugins/ppapi/ppb_image_data_impl.h" | |
| 24 #include "webkit/plugins/ppapi/resource_helper.h" | |
| 25 | |
| 26 #if defined(OS_WIN) | |
| 27 #include "base/win/windows_version.h" | |
| 28 #endif | |
| 29 | |
| 30 using ppapi::thunk::PPB_Scrollbar_API; | |
| 31 using WebKit::WebInputEvent; | |
| 32 using WebKit::WebRect; | |
| 33 using WebKit::WebScrollbar; | |
| 34 using WebKit::WebPluginScrollbar; | |
| 35 | |
| 36 namespace webkit { | |
| 37 namespace ppapi { | |
| 38 | |
| 39 // static | |
| 40 PP_Resource PPB_Scrollbar_Impl::Create(PP_Instance instance, | |
| 41 bool vertical) { | |
| 42 scoped_refptr<PPB_Scrollbar_Impl> scrollbar( | |
| 43 new PPB_Scrollbar_Impl(instance)); | |
| 44 scrollbar->Init(vertical); | |
| 45 return scrollbar->GetReference(); | |
| 46 } | |
| 47 | |
| 48 PPB_Scrollbar_Impl::PPB_Scrollbar_Impl(PP_Instance instance) | |
| 49 : PPB_Widget_Impl(instance), | |
| 50 weak_ptr_factory_(this) { | |
| 51 } | |
| 52 | |
| 53 PPB_Scrollbar_Impl::~PPB_Scrollbar_Impl() { | |
| 54 } | |
| 55 | |
| 56 void PPB_Scrollbar_Impl::Init(bool vertical) { | |
| 57 PluginInstanceImpl* plugin_instance = ResourceHelper::GetPluginInstance(this); | |
| 58 if (!plugin_instance) | |
| 59 return; | |
| 60 scrollbar_.reset(WebPluginScrollbar::createForPlugin( | |
| 61 vertical ? WebScrollbar::Vertical : WebScrollbar::Horizontal, | |
| 62 ResourceHelper::GetPluginInstance(this)->container(), | |
| 63 static_cast<WebKit::WebPluginScrollbarClient*>(this))); | |
| 64 } | |
| 65 | |
| 66 PPB_Scrollbar_API* PPB_Scrollbar_Impl::AsPPB_Scrollbar_API() { | |
| 67 return this; | |
| 68 } | |
| 69 | |
| 70 void PPB_Scrollbar_Impl::InstanceWasDeleted() { | |
| 71 scrollbar_.reset(); | |
| 72 } | |
| 73 | |
| 74 uint32_t PPB_Scrollbar_Impl::GetThickness() { | |
| 75 return WebPluginScrollbar::defaultThickness(); | |
| 76 } | |
| 77 | |
| 78 bool PPB_Scrollbar_Impl::IsOverlay() { | |
| 79 return scrollbar_->isOverlay(); | |
| 80 } | |
| 81 | |
| 82 uint32_t PPB_Scrollbar_Impl::GetValue() { | |
| 83 return scrollbar_->value(); | |
| 84 } | |
| 85 | |
| 86 void PPB_Scrollbar_Impl::SetValue(uint32_t value) { | |
| 87 if (scrollbar_) | |
| 88 scrollbar_->setValue(value); | |
| 89 } | |
| 90 | |
| 91 void PPB_Scrollbar_Impl::SetDocumentSize(uint32_t size) { | |
| 92 if (scrollbar_) | |
| 93 scrollbar_->setDocumentSize(size); | |
| 94 } | |
| 95 | |
| 96 void PPB_Scrollbar_Impl::SetTickMarks(const PP_Rect* tick_marks, | |
| 97 uint32_t count) { | |
| 98 if (!scrollbar_) | |
| 99 return; | |
| 100 tickmarks_.resize(count); | |
| 101 for (uint32 i = 0; i < count; ++i) { | |
| 102 tickmarks_[i] = WebRect(tick_marks[i].point.x, | |
| 103 tick_marks[i].point.y, | |
| 104 tick_marks[i].size.width, | |
| 105 tick_marks[i].size.height);; | |
| 106 } | |
| 107 PP_Rect rect = location(); | |
| 108 Invalidate(&rect); | |
| 109 } | |
| 110 | |
| 111 void PPB_Scrollbar_Impl::ScrollBy(PP_ScrollBy_Dev unit, int32_t multiplier) { | |
| 112 if (!scrollbar_) | |
| 113 return; | |
| 114 | |
| 115 WebScrollbar::ScrollDirection direction = multiplier >= 0 ? | |
| 116 WebScrollbar::ScrollForward : WebScrollbar::ScrollBackward; | |
| 117 float fmultiplier = 1.0; | |
| 118 | |
| 119 WebScrollbar::ScrollGranularity granularity; | |
| 120 if (unit == PP_SCROLLBY_LINE) { | |
| 121 granularity = WebScrollbar::ScrollByLine; | |
| 122 } else if (unit == PP_SCROLLBY_PAGE) { | |
| 123 granularity = WebScrollbar::ScrollByPage; | |
| 124 } else if (unit == PP_SCROLLBY_DOCUMENT) { | |
| 125 granularity = WebScrollbar::ScrollByDocument; | |
| 126 } else { | |
| 127 granularity = WebScrollbar::ScrollByPixel; | |
| 128 fmultiplier = static_cast<float>(multiplier); | |
| 129 if (fmultiplier < 0) | |
| 130 fmultiplier *= -1; | |
| 131 } | |
| 132 scrollbar_->scroll(direction, granularity, fmultiplier); | |
| 133 } | |
| 134 | |
| 135 PP_Bool PPB_Scrollbar_Impl::PaintInternal(const gfx::Rect& rect, | |
| 136 PPB_ImageData_Impl* image) { | |
| 137 ImageDataAutoMapper mapper(image); | |
| 138 skia::PlatformCanvas* canvas = image->GetPlatformCanvas(); | |
| 139 if (!canvas || !scrollbar_) | |
| 140 return PP_FALSE; | |
| 141 canvas->save(); | |
| 142 canvas->scale(scale(), scale()); | |
| 143 scrollbar_->paint(canvas, rect); | |
| 144 canvas->restore(); | |
| 145 | |
| 146 #if defined(OS_WIN) | |
| 147 if (base::win::GetVersion() == base::win::VERSION_XP) | |
| 148 skia::MakeOpaque(canvas, rect.x(), rect.y(), rect.width(), rect.height()); | |
| 149 #endif | |
| 150 | |
| 151 return PP_TRUE; | |
| 152 } | |
| 153 | |
| 154 PP_Bool PPB_Scrollbar_Impl::HandleEventInternal( | |
| 155 const ::ppapi::InputEventData& data) { | |
| 156 scoped_ptr<WebInputEvent> web_input_event(CreateWebInputEvent(data)); | |
| 157 if (!web_input_event.get() || !scrollbar_) | |
| 158 return PP_FALSE; | |
| 159 | |
| 160 return PP_FromBool(scrollbar_->handleInputEvent(*web_input_event.get())); | |
| 161 } | |
| 162 | |
| 163 void PPB_Scrollbar_Impl::SetLocationInternal(const PP_Rect* location) { | |
| 164 if (!scrollbar_) | |
| 165 return; | |
| 166 scrollbar_->setLocation(WebRect(location->point.x, | |
| 167 location->point.y, | |
| 168 location->size.width, | |
| 169 location->size.height)); | |
| 170 } | |
| 171 | |
| 172 void PPB_Scrollbar_Impl::valueChanged(WebKit::WebPluginScrollbar* scrollbar) { | |
| 173 PluginModule* plugin_module = ResourceHelper::GetPluginModule(this); | |
| 174 if (!plugin_module) | |
| 175 return; | |
| 176 | |
| 177 const PPP_Scrollbar_Dev* ppp_scrollbar = | |
| 178 static_cast<const PPP_Scrollbar_Dev*>(plugin_module->GetPluginInterface( | |
| 179 PPP_SCROLLBAR_DEV_INTERFACE)); | |
| 180 if (!ppp_scrollbar) { | |
| 181 // Try the old version. This is ok because the old interface is a subset of | |
| 182 // the new one, and ValueChanged didn't change. | |
| 183 ppp_scrollbar = | |
| 184 static_cast<const PPP_Scrollbar_Dev*>(plugin_module->GetPluginInterface( | |
| 185 PPP_SCROLLBAR_DEV_INTERFACE_0_2)); | |
| 186 if (!ppp_scrollbar) | |
| 187 return; | |
| 188 } | |
| 189 ppp_scrollbar->ValueChanged(pp_instance(), pp_resource(), | |
| 190 scrollbar_->value()); | |
| 191 } | |
| 192 | |
| 193 void PPB_Scrollbar_Impl::overlayChanged(WebPluginScrollbar* scrollbar) { | |
| 194 PluginModule* plugin_module = ResourceHelper::GetPluginModule(this); | |
| 195 if (!plugin_module) | |
| 196 return; | |
| 197 | |
| 198 const PPP_Scrollbar_Dev* ppp_scrollbar = | |
| 199 static_cast<const PPP_Scrollbar_Dev*>(plugin_module->GetPluginInterface( | |
| 200 PPP_SCROLLBAR_DEV_INTERFACE)); | |
| 201 if (!ppp_scrollbar) | |
| 202 return; | |
| 203 ppp_scrollbar->OverlayChanged(pp_instance(), pp_resource(), | |
| 204 PP_FromBool(IsOverlay())); | |
| 205 } | |
| 206 | |
| 207 void PPB_Scrollbar_Impl::invalidateScrollbarRect( | |
| 208 WebKit::WebPluginScrollbar* scrollbar, | |
| 209 const WebKit::WebRect& rect) { | |
| 210 gfx::Rect gfx_rect(rect.x, | |
| 211 rect.y, | |
| 212 rect.width, | |
| 213 rect.height); | |
| 214 dirty_.Union(gfx_rect); | |
| 215 // Can't call into the client to tell them about the invalidate right away, | |
| 216 // since the PPB_Scrollbar_Impl code is still in the middle of updating its | |
| 217 // internal state. | |
| 218 // Note: we use a WeakPtrFactory here so that a lingering callback can not | |
| 219 // modify the lifetime of this object. Otherwise, WebKit::WebPluginScrollbar | |
| 220 // could outlive WebKit::WebPluginContainer, which is against its contract. | |
| 221 base::MessageLoop::current()->PostTask( | |
| 222 FROM_HERE, | |
| 223 base::Bind(&PPB_Scrollbar_Impl::NotifyInvalidate, | |
| 224 weak_ptr_factory_.GetWeakPtr())); | |
| 225 } | |
| 226 | |
| 227 void PPB_Scrollbar_Impl::getTickmarks( | |
| 228 WebKit::WebPluginScrollbar* scrollbar, | |
| 229 WebKit::WebVector<WebKit::WebRect>* tick_marks) const { | |
| 230 if (tickmarks_.empty()) { | |
| 231 WebRect* rects = NULL; | |
| 232 tick_marks->assign(rects, 0); | |
| 233 } else { | |
| 234 tick_marks->assign(&tickmarks_[0], tickmarks_.size()); | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 void PPB_Scrollbar_Impl::NotifyInvalidate() { | |
| 239 if (dirty_.IsEmpty()) | |
| 240 return; | |
| 241 PP_Rect pp_rect; | |
| 242 pp_rect.point.x = dirty_.x(); | |
| 243 pp_rect.point.y = dirty_.y(); | |
| 244 pp_rect.size.width = dirty_.width(); | |
| 245 pp_rect.size.height = dirty_.height(); | |
| 246 dirty_ = gfx::Rect(); | |
| 247 Invalidate(&pp_rect); | |
| 248 } | |
| 249 | |
| 250 } // namespace ppapi | |
| 251 } // namespace webkit | |
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Chromium Code Reviews
Issue 20165002:
Move webkit/plugins/ppapi to content/renderer/pepper. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/