| // Copyright 2016 The Cobalt Authors. 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/backend/dom_agent.h" |
| |
| #include <memory> |
| #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 backend { |
| |
| namespace { |
| // Definitions from the set specified here: |
| // https://chromedevtools.github.io/devtools-protocol/tot/DOM |
| constexpr char kInspectorDomain[] = "DOM"; |
| |
| // File to load JavaScript DOM debugging domain implementation from. |
| constexpr char kScriptFile[] = "dom_agent.js"; |
| } // namespace |
| |
| DOMAgent::DOMAgent(DebugDispatcher* dispatcher, |
| std::unique_ptr<RenderLayer> render_layer) |
| : dispatcher_(dispatcher), |
| render_layer_(std::move(render_layer)), |
| ALLOW_THIS_IN_INITIALIZER_LIST(commands_(this, kInspectorDomain)) { |
| DCHECK(dispatcher_); |
| |
| commands_["disable"] = &DOMAgent::Disable; |
| commands_["enable"] = &DOMAgent::Enable; |
| commands_["highlightNode"] = &DOMAgent::HighlightNode; |
| commands_["hideHighlight"] = &DOMAgent::HideHighlight; |
| } |
| |
| void DOMAgent::Thaw(JSONObject agent_state) { |
| dispatcher_->AddDomain(kInspectorDomain, commands_.Bind()); |
| script_loaded_ = dispatcher_->RunScriptFile(kScriptFile); |
| DLOG_IF(ERROR, !script_loaded_) << "Failed to load " << kScriptFile; |
| } |
| |
| JSONObject DOMAgent::Freeze() { |
| dispatcher_->RemoveDomain(kInspectorDomain); |
| return JSONObject(); |
| } |
| |
| void DOMAgent::Enable(const Command& command) { |
| if (script_loaded_) { |
| command.SendResponse(); |
| } else { |
| command.SendErrorResponse(Command::kInternalError, |
| "Cannot create DOM inspector."); |
| } |
| } |
| |
| void DOMAgent::Disable(const Command& command) { command.SendResponse(); } |
| |
| // 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. |
| void DOMAgent::HighlightNode(const Command& command) { |
| // Get the bounding rectangle of the specified node. |
| JSONObject json_dom_rect = dispatcher_->RunScriptCommand( |
| "dom._getBoundingClientRect", command.GetParams()); |
| 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|. |
| JSONObject params = JSONParse(command.GetParams()); |
| base::DictionaryValue* highlight_config_value = NULL; |
| bool got_highlight_config = |
| params->GetDictionary("highlightConfig", &highlight_config_value); |
| DCHECK(got_highlight_config); |
| DCHECK(highlight_config_value); |
| |
| RenderHighlight(dom_rect, highlight_config_value); |
| |
| command.SendResponse(); |
| } |
| |
| void DOMAgent::HideHighlight(const Command& command) { |
| render_layer_->SetFrontLayer(scoped_refptr<render_tree::Node>()); |
| command.SendResponse(); |
| } |
| |
| void DOMAgent::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("contentColor", &content_color); |
| if (got_content_color && content_color) { |
| content_color->GetInteger("r", &r); |
| content_color->GetInteger("g", &g); |
| content_color->GetInteger("b", &b); |
| content_color->GetDouble("a", &a); |
| } |
| render_tree::ColorRGBA color(r / 255.0f, g / 255.0f, b / 255.0f, |
| static_cast<float>(a)); |
| |
| std::unique_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()), |
| std::move(background_brush)); |
| render_layer_->SetFrontLayer(rect); |
| } |
| |
| } // namespace backend |
| } // namespace debug |
| } // namespace cobalt |