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| 1 // Copyright 2016 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 "ash/devtools/ash_devtools_css_agent.h" | |
| 6 | |
| 7 #include "ash/devtools/ui_element.h" | |
| 8 #include "base/strings/string_split.h" | |
| 9 #include "base/strings/string_util.h" | |
| 10 #include "ui/aura/window.h" | |
| 11 | |
| 12 namespace ash { | |
| 13 namespace devtools { | |
| 14 namespace { | |
| 15 | |
| 16 using namespace ui::devtools::protocol; | |
| 17 | |
| 18 const char kHeight[] = "height"; | |
| 19 const char kWidth[] = "width"; | |
| 20 const char kX[] = "x"; | |
| 21 const char kY[] = "y"; | |
| 22 const char kVisibility[] = "visibility"; | |
| 23 | |
| 24 std::unique_ptr<CSS::SourceRange> BuildDefaultSourceRange() { | |
| 25 // These tell the frontend where in the stylesheet a certain style | |
| 26 // is located. Since we don't have stylesheets, this is all 0. | |
| 27 // We need this because CSS fields are not editable unless | |
| 28 // the range is provided. | |
| 29 return CSS::SourceRange::create() | |
| 30 .setStartLine(0) | |
| 31 .setEndLine(0) | |
| 32 .setStartColumn(0) | |
| 33 .setEndColumn(0) | |
| 34 .build(); | |
| 35 } | |
| 36 | |
| 37 std::unique_ptr<CSS::CSSProperty> BuildCSSProperty(const std::string& name, | |
| 38 int value) { | |
| 39 return CSS::CSSProperty::create() | |
| 40 .setRange(BuildDefaultSourceRange()) | |
| 41 .setName(name) | |
| 42 .setValue(base::IntToString(value)) | |
| 43 .build(); | |
| 44 } | |
| 45 | |
| 46 std::unique_ptr<Array<CSS::CSSProperty>> BuildCSSPropertyArray( | |
| 47 const gfx::Rect& bounds, | |
| 48 const bool visible) { | |
| 49 auto cssProperties = Array<CSS::CSSProperty>::create(); | |
| 50 cssProperties->addItem(BuildCSSProperty(kHeight, bounds.height())); | |
| 51 cssProperties->addItem(BuildCSSProperty(kWidth, bounds.width())); | |
| 52 cssProperties->addItem(BuildCSSProperty(kX, bounds.x())); | |
| 53 cssProperties->addItem(BuildCSSProperty(kY, bounds.y())); | |
| 54 cssProperties->addItem(BuildCSSProperty(kVisibility, visible)); | |
| 55 return cssProperties; | |
| 56 } | |
| 57 | |
| 58 std::unique_ptr<CSS::CSSStyle> BuildCSSStyle(int node_id, | |
| 59 const gfx::Rect& bounds, | |
| 60 bool visible) { | |
| 61 return CSS::CSSStyle::create() | |
| 62 .setRange(BuildDefaultSourceRange()) | |
| 63 .setStyleSheetId(base::IntToString(node_id)) | |
| 64 .setCssProperties(BuildCSSPropertyArray(bounds, visible)) | |
| 65 .setShorthandEntries(Array<std::string>::create()) | |
| 66 .build(); | |
| 67 } | |
| 68 | |
| 69 ui::devtools::protocol::Response NodeNotFoundError(int node_id) { | |
| 70 return ui::devtools::protocol::Response::Error( | |
| 71 "Node with id=" + std::to_string(node_id) + " not found"); | |
| 72 } | |
| 73 | |
| 74 Response ParseProperties(const std::string& style_text, | |
| 75 gfx::Rect* bounds, | |
| 76 bool* visible) { | |
| 77 std::vector<std::string> tokens = base::SplitString( | |
| 78 style_text, ":;", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY); | |
| 79 for (size_t i = 0; i < tokens.size() - 1; i += 2) { | |
| 80 const std::string& property = tokens.at(i); | |
| 81 int value; | |
| 82 if (!base::StringToInt(tokens.at(i + 1), &value)) | |
| 83 return Response::Error("Unable to parse value for property=" + property); | |
| 84 | |
| 85 if (property == kHeight) | |
| 86 bounds->set_height(std::max(0, value)); | |
| 87 else if (property == kWidth) | |
| 88 bounds->set_width(std::max(0, value)); | |
| 89 else if (property == kX) | |
| 90 bounds->set_x(value); | |
| 91 else if (property == kY) | |
| 92 bounds->set_y(value); | |
| 93 else if (property == kVisibility) | |
| 94 *visible = std::max(0, value) == 1; | |
| 95 else | |
| 96 return Response::Error("Unsupported property=" + property); | |
| 97 } | |
| 98 return Response::OK(); | |
| 99 } | |
| 100 | |
| 101 } // namespace | |
| 102 | |
| 103 AshDevToolsCSSAgent::AshDevToolsCSSAgent(AshDevToolsDOMAgent* dom_agent) | |
| 104 : dom_agent_(dom_agent) { | |
| 105 DCHECK(dom_agent_); | |
| 106 } | |
| 107 | |
| 108 AshDevToolsCSSAgent::~AshDevToolsCSSAgent() { | |
| 109 disable(); | |
| 110 } | |
| 111 | |
| 112 ui::devtools::protocol::Response AshDevToolsCSSAgent::enable() { | |
| 113 dom_agent_->AddObserver(this); | |
| 114 return ui::devtools::protocol::Response::OK(); | |
| 115 } | |
| 116 | |
| 117 ui::devtools::protocol::Response AshDevToolsCSSAgent::disable() { | |
| 118 dom_agent_->RemoveObserver(this); | |
| 119 return ui::devtools::protocol::Response::OK(); | |
| 120 } | |
| 121 | |
| 122 ui::devtools::protocol::Response AshDevToolsCSSAgent::getMatchedStylesForNode( | |
| 123 int node_id, | |
| 124 ui::devtools::protocol::Maybe<ui::devtools::protocol::CSS::CSSStyle>* | |
| 125 inline_style) { | |
| 126 *inline_style = GetStylesForNode(node_id); | |
| 127 if (!inline_style) | |
| 128 return NodeNotFoundError(node_id); | |
| 129 return ui::devtools::protocol::Response::OK(); | |
| 130 } | |
| 131 | |
| 132 ui::devtools::protocol::Response AshDevToolsCSSAgent::setStyleTexts( | |
| 133 std::unique_ptr<ui::devtools::protocol::Array< | |
| 134 ui::devtools::protocol::CSS::StyleDeclarationEdit>> edits, | |
| 135 std::unique_ptr< | |
| 136 ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>>* | |
| 137 result) { | |
| 138 std::unique_ptr< | |
| 139 ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>> | |
| 140 updated_styles = ui::devtools::protocol::Array< | |
| 141 ui::devtools::protocol::CSS::CSSStyle>::create(); | |
| 142 for (size_t i = 0; i < edits->length(); i++) { | |
| 143 auto* edit = edits->get(i); | |
| 144 int node_id; | |
| 145 if (!base::StringToInt(edit->getStyleSheetId(), &node_id)) | |
| 146 return ui::devtools::protocol::Response::Error("Invalid node id"); | |
| 147 | |
| 148 gfx::Rect updated_bounds; | |
| 149 bool visible = false; | |
| 150 if (!GetPropertiesForNodeId(node_id, &updated_bounds, &visible)) | |
| 151 return NodeNotFoundError(node_id); | |
| 152 | |
| 153 ui::devtools::protocol::Response response( | |
| 154 ParseProperties(edit->getText(), &updated_bounds, &visible)); | |
| 155 if (!response.isSuccess()) | |
| 156 return response; | |
| 157 | |
| 158 updated_styles->addItem(BuildCSSStyle(node_id, updated_bounds, visible)); | |
| 159 | |
| 160 if (!SetPropertiesForNodeId(node_id, updated_bounds, visible)) | |
| 161 return NodeNotFoundError(node_id); | |
| 162 } | |
| 163 *result = std::move(updated_styles); | |
| 164 return ui::devtools::protocol::Response::OK(); | |
| 165 } | |
| 166 | |
| 167 void AshDevToolsCSSAgent::OnNodeBoundsChanged(int node_id) { | |
| 168 InvalidateStyleSheet(node_id); | |
| 169 } | |
| 170 | |
| 171 std::unique_ptr<ui::devtools::protocol::CSS::CSSStyle> | |
| 172 AshDevToolsCSSAgent::GetStylesForNode(int node_id) { | |
| 173 gfx::Rect bounds; | |
| 174 bool visible = false; | |
| 175 return GetPropertiesForNodeId(node_id, &bounds, &visible) | |
| 176 ? BuildCSSStyle(node_id, bounds, visible) | |
| 177 : nullptr; | |
| 178 } | |
| 179 | |
| 180 void AshDevToolsCSSAgent::InvalidateStyleSheet(int node_id) { | |
| 181 // The stylesheetId for each node is equivalent to its node_id (as a string). | |
| 182 frontend()->styleSheetChanged(base::IntToString(node_id)); | |
| 183 } | |
| 184 | |
| 185 bool AshDevToolsCSSAgent::GetPropertiesForNodeId(int node_id, | |
| 186 gfx::Rect* bounds, | |
| 187 bool* visible) { | |
| 188 UIElement* ui_element = dom_agent_->GetElementFromNodeId(node_id); | |
| 189 if (ui_element) { | |
| 190 ui_element->GetBounds(bounds); | |
| 191 ui_element->GetVisible(visible); | |
| 192 return true; | |
| 193 } | |
| 194 return false; | |
| 195 } | |
| 196 | |
| 197 bool AshDevToolsCSSAgent::SetPropertiesForNodeId(int node_id, | |
| 198 const gfx::Rect& bounds, | |
| 199 bool visible) { | |
| 200 UIElement* ui_element = dom_agent_->GetElementFromNodeId(node_id); | |
| 201 if (ui_element) { | |
| 202 ui_element->SetBounds(bounds); | |
| 203 ui_element->SetVisible(visible); | |
| 204 return true; | |
| 205 } | |
| 206 return false; | |
| 207 } | |
| 208 | |
| 209 } // namespace devtools | |
| 210 } // namespace ash | |
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