| /* |
| * Copyright 2016 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "cobalt/debug/dom_component.h" |
| |
| #include <string> |
| |
| #include "base/bind.h" |
| #include "cobalt/math/matrix3_f.h" |
| #include "cobalt/math/transform_2d.h" |
| #include "cobalt/render_tree/brush.h" |
| #include "cobalt/render_tree/color_rgba.h" |
| #include "cobalt/render_tree/rect_node.h" |
| |
| namespace cobalt { |
| namespace debug { |
| |
| namespace { |
| // File to load JavaScript DOM debugging domain implementation from. |
| const char kScriptFile[] = "dom.js"; |
| |
| // Command "methods" (names) from the set specified here: |
| // https://developer.chrome.com/devtools/docs/protocol/1.1/dom |
| const char kDisable[] = "DOM.disable"; |
| const char kEnable[] = "DOM.enable"; |
| const char kGetDocument[] = "DOM.getDocument"; |
| const char kRequestChildNodes[] = "DOM.requestChildNodes"; |
| const char kRequestNode[] = "DOM.requestNode"; |
| const char kResolveNode[] = "DOM.resolveNode"; |
| const char kHideHighlight[] = "DOM.hideHighlight"; |
| const char kHighlightNode[] = "DOM.highlightNode"; |
| |
| // Parameter names: |
| const char kA[] = "a"; |
| const char kB[] = "b"; |
| const char kContentColor[] = "contentColor"; |
| const char kG[] = "g"; |
| const char kHighlightConfig[] = "highlightConfig"; |
| const char kR[] = "r"; |
| } // namespace |
| |
| DOMComponent::DOMComponent(ComponentConnector* connector, |
| scoped_ptr<RenderLayer> render_layer) |
| : connector_(connector), render_layer_(render_layer.Pass()) { |
| DCHECK(connector_); |
| connector_->AddCommand( |
| kDisable, base::Bind(&DOMComponent::Disable, base::Unretained(this))); |
| connector_->AddCommand( |
| kEnable, base::Bind(&DOMComponent::Enable, base::Unretained(this))); |
| connector_->AddCommand(kGetDocument, base::Bind(&DOMComponent::GetDocument, |
| base::Unretained(this))); |
| connector_->AddCommand( |
| kRequestChildNodes, |
| base::Bind(&DOMComponent::RequestChildNodes, base::Unretained(this))); |
| connector_->AddCommand(kRequestNode, base::Bind(&DOMComponent::RequestNode, |
| base::Unretained(this))); |
| connector_->AddCommand(kResolveNode, base::Bind(&DOMComponent::ResolveNode, |
| base::Unretained(this))); |
| connector_->AddCommand( |
| kHighlightNode, |
| base::Bind(&DOMComponent::HighlightNode, base::Unretained(this))); |
| connector_->AddCommand( |
| kHideHighlight, |
| base::Bind(&DOMComponent::HideHighlight, base::Unretained(this))); |
| } |
| |
| JSONObject DOMComponent::Enable(const JSONObject& params) { |
| UNREFERENCED_PARAMETER(params); |
| bool initialized = connector_->RunScriptFile(kScriptFile); |
| if (initialized) { |
| return JSONObject(new base::DictionaryValue()); |
| } else { |
| return connector_->ErrorResponse("Cannot create DOM inspector."); |
| } |
| } |
| |
| JSONObject DOMComponent::Disable(const JSONObject& params) { |
| UNREFERENCED_PARAMETER(params); |
| return JSONObject(new base::DictionaryValue()); |
| } |
| |
| JSONObject DOMComponent::GetDocument(const JSONObject& params) { |
| return connector_->RunScriptCommand("dom.getDocument", params); |
| } |
| |
| JSONObject DOMComponent::RequestChildNodes(const JSONObject& params) { |
| return connector_->RunScriptCommand("dom.requestChildNodes", params); |
| } |
| |
| JSONObject DOMComponent::RequestNode(const JSONObject& params) { |
| return connector_->RunScriptCommand("dom.requestNode", params); |
| } |
| |
| JSONObject DOMComponent::ResolveNode(const JSONObject& params) { |
| return connector_->RunScriptCommand("dom.resolveNode", params); |
| } |
| |
| // Unlike most other DOM command handlers, this one is not fully implemented |
| // in JavaScript. Instead, the JS object is used to look up the node from the |
| // parameters and return its bounding client rect, then the highlight itself |
| // is rendered by calling the C++ function |RenderHighlight| to set the render |
| // overlay. |
| JSONObject DOMComponent::HighlightNode(const JSONObject& params) { |
| // Get the bounding rectangle of the specified node. |
| JSONObject json_dom_rect = |
| connector_->RunScriptCommand("dom.getBoundingClientRect", params); |
| double x = 0.0; |
| double y = 0.0; |
| double width = 0.0; |
| double height = 0.0; |
| json_dom_rect->GetDouble("result.x", &x); |
| json_dom_rect->GetDouble("result.y", &y); |
| json_dom_rect->GetDouble("result.width", &width); |
| json_dom_rect->GetDouble("result.height", &height); |
| |
| scoped_refptr<dom::DOMRect> dom_rect( |
| new dom::DOMRect(static_cast<float>(x), static_cast<float>(y), |
| static_cast<float>(width), static_cast<float>(height))); |
| |
| // |highlight_config_value| still owned by |params|. |
| base::DictionaryValue* highlight_config_value = NULL; |
| bool got_highlight_config = |
| params->GetDictionary(kHighlightConfig, &highlight_config_value); |
| DCHECK(got_highlight_config); |
| DCHECK(highlight_config_value); |
| |
| RenderHighlight(dom_rect, highlight_config_value); |
| |
| // Empty response. |
| return JSONObject(new base::DictionaryValue()); |
| } |
| |
| JSONObject DOMComponent::HideHighlight(const JSONObject& params) { |
| UNREFERENCED_PARAMETER(params); |
| render_layer_->SetFrontLayer(scoped_refptr<render_tree::Node>()); |
| |
| // Empty response. |
| return JSONObject(new base::DictionaryValue()); |
| } |
| |
| void DOMComponent::RenderHighlight( |
| const scoped_refptr<dom::DOMRect>& bounding_rect, |
| const base::DictionaryValue* highlight_config_value) { |
| // TODO: Should also render borders, etc. |
| |
| // Content color is optional in the parameters, so use a fallback. |
| int r = 112; |
| int g = 168; |
| int b = 219; |
| double a = 0.66; |
| const base::DictionaryValue* content_color = NULL; |
| bool got_content_color = |
| highlight_config_value->GetDictionary(kContentColor, &content_color); |
| if (got_content_color && content_color) { |
| content_color->GetInteger(kR, &r); |
| content_color->GetInteger(kG, &g); |
| content_color->GetInteger(kB, &b); |
| content_color->GetDouble(kA, &a); |
| } |
| render_tree::ColorRGBA color(r / 255.0f, g / 255.0f, b / 255.0f, |
| static_cast<float>(a)); |
| |
| scoped_ptr<render_tree::Brush> background_brush( |
| new render_tree::SolidColorBrush(color)); |
| scoped_refptr<render_tree::Node> rect = new render_tree::RectNode( |
| math::RectF(bounding_rect->x(), bounding_rect->y(), |
| bounding_rect->width(), bounding_rect->height()), |
| background_brush.Pass()); |
| render_layer_->SetFrontLayer(rect); |
| } |
| |
| } // namespace debug |
| } // namespace cobalt |