| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ash/common/devtools/ash_devtools_dom_agent.h" |
| |
| #include "ash/common/wm_lookup.h" |
| #include "ash/common/wm_window.h" |
| #include "components/ui_devtools/devtools_server.h" |
| |
| namespace ash { |
| namespace devtools { |
| |
| namespace { |
| using namespace ui::devtools::protocol; |
| DOM::NodeId node_ids = 1; |
| |
| std::unique_ptr<DOM::Node> BuildNode( |
| const std::string& name, |
| std::unique_ptr<Array<std::string>> attributes, |
| std::unique_ptr<Array<DOM::Node>> children) { |
| constexpr int kDomElementNodeType = 1; |
| std::unique_ptr<DOM::Node> node = DOM::Node::create() |
| .setNodeId(node_ids++) |
| .setNodeName(name) |
| .setNodeType(kDomElementNodeType) |
| .setAttributes(std::move(attributes)) |
| .build(); |
| node->setChildNodeCount(children->length()); |
| node->setChildren(std::move(children)); |
| return node; |
| } |
| |
| std::unique_ptr<Array<std::string>> GetAttributes(const ash::WmWindow* window) { |
| std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create(); |
| attributes->addItem("name"); |
| attributes->addItem(window->GetName()); |
| attributes->addItem("active"); |
| attributes->addItem(window->IsActive() ? "true" : "false"); |
| return attributes; |
| } |
| |
| std::unique_ptr<Array<std::string>> GetAttributes(const views::Widget* widget) { |
| std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create(); |
| attributes->addItem("name"); |
| attributes->addItem(widget->GetName()); |
| attributes->addItem("active"); |
| attributes->addItem(widget->IsActive() ? "true" : "false"); |
| return attributes; |
| } |
| |
| std::unique_ptr<Array<std::string>> GetAttributes(const views::View* view) { |
| std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create(); |
| attributes->addItem("name"); |
| attributes->addItem(view->GetClassName()); |
| return attributes; |
| } |
| |
| |
| WmWindow* FindPreviousSibling(WmWindow* window) { |
| std::vector<WmWindow*> siblings = window->GetParent()->GetChildren(); |
| std::vector<WmWindow*>::iterator it = |
| std::find(siblings.begin(), siblings.end(), window); |
| DCHECK(it != siblings.end()); |
| // If this is the first child of its parent, the previous sibling is null |
| return it == siblings.begin() ? nullptr : *std::prev(it); |
| } |
| |
| } // namespace |
| |
| AshDevToolsDOMAgent::AshDevToolsDOMAgent(ash::WmShell* shell) : shell_(shell) { |
| DCHECK(shell_); |
| } |
| |
| AshDevToolsDOMAgent::~AshDevToolsDOMAgent() { |
| RemoveObserverFromAllWindows(); |
| } |
| |
| ui::devtools::protocol::Response AshDevToolsDOMAgent::disable() { |
| Reset(); |
| return ui::devtools::protocol::Response::OK(); |
| } |
| |
| ui::devtools::protocol::Response AshDevToolsDOMAgent::getDocument( |
| std::unique_ptr<ui::devtools::protocol::DOM::Node>* out_root) { |
| *out_root = BuildInitialTree(); |
| return ui::devtools::protocol::Response::OK(); |
| } |
| |
| // Handles removing windows. |
| void AshDevToolsDOMAgent::OnWindowTreeChanging(WmWindow* window, |
| const TreeChangeParams& params) { |
| // Only trigger this when window == params.old_parent. |
| // Only removals are handled here. Removing a node can occur as a result of |
| // reorganizing a window or just destroying it. OnWindowTreeChanged |
| // is only called if there is a new_parent. The only case this method isn't |
| // called is when adding a node because old_parent is then null. |
| // Finally, We only trigger this 0 or 1 times as an old_parent will |
| // either exist and only call this callback once, or not at all. |
| if (window == params.old_parent) |
| RemoveWindowNode(params.target); |
| } |
| |
| // Handles adding windows. |
| void AshDevToolsDOMAgent::OnWindowTreeChanged(WmWindow* window, |
| const TreeChangeParams& params) { |
| // Only trigger this when window == params.new_parent. |
| // If there is an old_parent + new_parent, then this window's node was |
| // removed in OnWindowTreeChanging and will now be added to the new_parent. |
| // If there is only a new_parent, OnWindowTreeChanging is never called and |
| // the window is only added here. |
| if (window == params.new_parent) |
| AddWindowNode(params.target); |
| } |
| |
| void AshDevToolsDOMAgent::OnWindowStackingChanged(WmWindow* window) { |
| RemoveWindowNode(window); |
| AddWindowNode(window); |
| } |
| |
| WmWindow* AshDevToolsDOMAgent::GetWindowFromNodeId(int nodeId) { |
| return node_id_to_window_map_.count(nodeId) ? node_id_to_window_map_[nodeId] |
| : nullptr; |
| } |
| |
| views::Widget* AshDevToolsDOMAgent::GetWidgetFromNodeId(int nodeId) { |
| return node_id_to_widget_map_.count(nodeId) ? node_id_to_widget_map_[nodeId] |
| : nullptr; |
| } |
| |
| views::View* AshDevToolsDOMAgent::GetViewFromNodeId(int nodeId) { |
| return node_id_to_view_map_.count(nodeId) ? node_id_to_view_map_[nodeId] |
| : nullptr; |
| } |
| |
| int AshDevToolsDOMAgent::GetNodeIdFromWindow(WmWindow* window) { |
| DCHECK(window_to_node_id_map_.count(window)); |
| return window_to_node_id_map_[window]; |
| } |
| |
| int AshDevToolsDOMAgent::GetNodeIdFromWidget(views::Widget* widget) { |
| DCHECK(widget_to_node_id_map_.count(widget)); |
| return widget_to_node_id_map_[widget]; |
| } |
| |
| int AshDevToolsDOMAgent::GetNodeIdFromView(views::View* view) { |
| DCHECK(view_to_node_id_map_.count(view)); |
| return view_to_node_id_map_[view]; |
| } |
| |
| std::unique_ptr<DOM::Node> AshDevToolsDOMAgent::BuildTreeForView( |
| views::View* view) { |
| std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create(); |
| for (int i = 0, count = view->child_count(); i < count; i++) { |
| children->addItem(BuildTreeForView(view->child_at(i))); |
| } |
| std::unique_ptr<ui::devtools::protocol::DOM::Node> node = |
| BuildNode("View", GetAttributes(view), std::move(children)); |
| view_to_node_id_map_[view] = node->getNodeId(); |
| node_id_to_view_map_[node->getNodeId()] = view; |
| return node; |
| } |
| |
| std::unique_ptr<DOM::Node> AshDevToolsDOMAgent::BuildTreeForRootWidget( |
| views::Widget* widget) { |
| std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create(); |
| children->addItem(BuildTreeForView(widget->GetRootView())); |
| std::unique_ptr<ui::devtools::protocol::DOM::Node> node = |
| BuildNode("Widget", GetAttributes(widget), std::move(children)); |
| widget_to_node_id_map_[widget] = node->getNodeId(); |
| node_id_to_widget_map_[node->getNodeId()] = widget; |
| return node; |
| } |
| |
| std::unique_ptr<DOM::Node> AshDevToolsDOMAgent::BuildTreeForWindow( |
| ash::WmWindow* window) { |
| std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create(); |
| views::Widget* widget = window->GetInternalWidget(); |
| if (widget) |
| children->addItem(BuildTreeForRootWidget(widget)); |
| for (ash::WmWindow* child : window->GetChildren()) { |
| children->addItem(BuildTreeForWindow(child)); |
| } |
| std::unique_ptr<ui::devtools::protocol::DOM::Node> node = |
| BuildNode("Window", GetAttributes(window), std::move(children)); |
| // Only add as observer if window is not in map |
| if (!window_to_node_id_map_.count(window)) |
| window->AddObserver(this); |
| window_to_node_id_map_[window] = node->getNodeId(); |
| node_id_to_window_map_[node->getNodeId()] = window; |
| return node; |
| } |
| |
| std::unique_ptr<ui::devtools::protocol::DOM::Node> |
| AshDevToolsDOMAgent::BuildInitialTree() { |
| std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create(); |
| for (ash::WmWindow* window : shell_->GetAllRootWindows()) { |
| children->addItem(BuildTreeForWindow(window)); |
| } |
| return BuildNode("root", nullptr, std::move(children)); |
| } |
| |
| void AshDevToolsDOMAgent::AddWindowNode(WmWindow* window) { |
| DCHECK(window_to_node_id_map_.count(window->GetParent())); |
| WmWindow* prev_sibling = FindPreviousSibling(window); |
| frontend()->childNodeInserted( |
| window_to_node_id_map_[window->GetParent()], |
| prev_sibling ? window_to_node_id_map_[prev_sibling] : 0, |
| BuildTreeForWindow(window)); |
| } |
| |
| void AshDevToolsDOMAgent::RemoveWindowNode(WmWindow* window) { |
| WmWindow* parent = window->GetParent(); |
| DCHECK(parent); |
| WindowToNodeIdMap::iterator window_to_node_id_it = |
| window_to_node_id_map_.find(window); |
| DCHECK(window_to_node_id_it != window_to_node_id_map_.end()); |
| |
| int node_id = window_to_node_id_it->second; |
| int parent_id = GetNodeIdFromWindow(parent); |
| |
| NodeIdToWindowMap::iterator node_id_to_window_it = |
| node_id_to_window_map_.find(node_id); |
| DCHECK(node_id_to_window_it != node_id_to_window_map_.end()); |
| |
| views::Widget* widget = window->GetInternalWidget(); |
| if (widget) |
| RemoveWidgetNode(widget); |
| |
| window->RemoveObserver(this); |
| node_id_to_window_map_.erase(node_id_to_window_it); |
| window_to_node_id_map_.erase(window_to_node_id_it); |
| frontend()->childNodeRemoved(parent_id, node_id); |
| } |
| |
| void AshDevToolsDOMAgent::RemoveWidgetNode(views::Widget* widget) { |
| WidgetToNodeIdMap::iterator widget_to_node_id_it = |
| widget_to_node_id_map_.find(widget); |
| DCHECK(widget_to_node_id_it != widget_to_node_id_map_.end()); |
| |
| int node_id = widget_to_node_id_it->second; |
| int parent_id = |
| GetNodeIdFromWindow(WmLookup::Get()->GetWindowForWidget(widget)); |
| |
| RemoveViewNode(widget->GetRootView()); |
| |
| NodeIdToWidgetMap::iterator node_id_to_widget_it = |
| node_id_to_widget_map_.find(node_id); |
| DCHECK(node_id_to_widget_it != node_id_to_widget_map_.end()); |
| |
| widget_to_node_id_map_.erase(widget_to_node_id_it); |
| node_id_to_widget_map_.erase(node_id_to_widget_it); |
| frontend()->childNodeRemoved(parent_id, node_id); |
| } |
| |
| void AshDevToolsDOMAgent::RemoveViewNode(views::View* view) { |
| // TODO(mhashmi): Add observers to views/widgets so new views exist |
| // in the map and can be removed here |
| } |
| |
| void AshDevToolsDOMAgent::RemoveObserverFromAllWindows() { |
| for (auto& pair : window_to_node_id_map_) |
| pair.first->RemoveObserver(this); |
| } |
| |
| void AshDevToolsDOMAgent::Reset() { |
| RemoveObserverFromAllWindows(); |
| window_to_node_id_map_.clear(); |
| widget_to_node_id_map_.clear(); |
| view_to_node_id_map_.clear(); |
| node_id_to_window_map_.clear(); |
| node_id_to_widget_map_.clear(); |
| node_id_to_view_map_.clear(); |
| node_ids = 1; |
| } |
| |
| } // namespace devtools |
| } // namespace ash |