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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/common/devtools/ash_devtools_css_agent.h" | |
6 | |
7 #include "ash/common/wm_window.h" | |
8 #include "base/strings/string_split.h" | |
9 #include "base/strings/string_util.h" | |
10 | |
11 namespace ash { | |
12 namespace devtools { | |
13 | |
14 namespace { | |
15 using namespace ui::devtools::protocol; | |
16 | |
17 const char kHeight[] = "height"; | |
18 const char kWidth[] = "width"; | |
19 const char kX[] = "x"; | |
20 const char kY[] = "y"; | |
21 | |
22 std::unique_ptr<CSS::SourceRange> BuildDefaultSourceRange() { | |
23 // These tell the frontend where in the stylesheet a certain style | |
24 // is located. Since we don't have stylesheets, this is all 0. | |
25 // We need this because CSS fields are not editable unless | |
26 // the range is provided. | |
27 return CSS::SourceRange::create() | |
28 .setStartLine(0) | |
29 .setEndLine(0) | |
30 .setStartColumn(0) | |
31 .setEndColumn(0) | |
32 .build(); | |
33 } | |
34 | |
35 std::unique_ptr<CSS::CSSProperty> BuildCSSProperty(const std::string& name, | |
36 int value) { | |
37 return CSS::CSSProperty::create() | |
38 .setRange(BuildDefaultSourceRange()) | |
39 .setName(name) | |
40 .setValue(base::IntToString(value)) | |
41 .build(); | |
42 } | |
43 | |
44 std::unique_ptr<Array<CSS::CSSProperty>> BuildBoundsCSSPropertyArray( | |
45 const gfx::Rect& bounds) { | |
46 auto cssProperties = Array<CSS::CSSProperty>::create(); | |
47 cssProperties->addItem(BuildCSSProperty(kHeight, bounds.height())); | |
48 cssProperties->addItem(BuildCSSProperty(kWidth, bounds.width())); | |
49 cssProperties->addItem(BuildCSSProperty(kX, bounds.x())); | |
50 cssProperties->addItem(BuildCSSProperty(kY, bounds.y())); | |
51 return cssProperties; | |
52 } | |
53 | |
54 std::unique_ptr<CSS::CSSStyle> BuildCSSStyle(int node_id, | |
55 const gfx::Rect& bounds) { | |
56 return CSS::CSSStyle::create() | |
57 .setRange(BuildDefaultSourceRange()) | |
58 .setStyleSheetId(base::IntToString(node_id)) | |
59 .setCssProperties(BuildBoundsCSSPropertyArray(bounds)) | |
60 .setShorthandEntries(Array<std::string>::create()) | |
61 .build(); | |
62 } | |
63 | |
64 Response ParseBounds(const std::string& style_text, gfx::Rect& bounds) { | |
65 std::vector<std::string> tokens = base::SplitString( | |
66 style_text, ":;", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY); | |
67 for (size_t i = 0; i < tokens.size() - 1; i += 2) { | |
68 const std::string& property = tokens.at(i); | |
69 int value; | |
70 if (!base::StringToInt(tokens.at(i + 1), &value)) | |
71 return Response::Error("Unable to parse value for property=" + property); | |
72 | |
73 if (property == kHeight) | |
74 bounds.set_height(std::max(0, value)); | |
75 else if (property == kWidth) | |
76 bounds.set_width(std::max(0, value)); | |
77 else if (property == kX) | |
78 bounds.set_x(value); | |
79 else if (property == kY) | |
80 bounds.set_y(value); | |
81 else | |
82 return Response::Error("Unsupported property=" + property); | |
83 } | |
84 return Response::OK(); | |
85 } | |
86 | |
87 } // namespace | |
88 | |
89 AshDevToolsCSSAgent::AshDevToolsCSSAgent(AshDevToolsDOMAgent* dom_agent) | |
90 : dom_agent_(dom_agent) { | |
91 DCHECK(dom_agent_); | |
92 } | |
93 | |
94 AshDevToolsCSSAgent::~AshDevToolsCSSAgent() { | |
95 disable(); | |
96 } | |
97 | |
98 ui::devtools::protocol::Response AshDevToolsCSSAgent::enable() { | |
99 dom_agent_->AddObserver(this); | |
100 return ui::devtools::protocol::Response::OK(); | |
101 } | |
102 | |
103 ui::devtools::protocol::Response AshDevToolsCSSAgent::disable() { | |
104 dom_agent_->RemoveObserver(this); | |
105 return ui::devtools::protocol::Response::OK(); | |
106 } | |
107 | |
108 ui::devtools::protocol::Response AshDevToolsCSSAgent::getMatchedStylesForNode( | |
109 int node_id, | |
110 ui::devtools::protocol::Maybe<ui::devtools::protocol::CSS::CSSStyle>* | |
111 inline_style) { | |
112 *inline_style = GetStylesForNode(node_id); | |
113 if (!inline_style) { | |
114 return ui::devtools::protocol::Response::Error( | |
115 "Node with that id not found"); | |
116 } | |
117 return ui::devtools::protocol::Response::OK(); | |
118 } | |
119 | |
120 ui::devtools::protocol::Response AshDevToolsCSSAgent::setStyleTexts( | |
121 std::unique_ptr<ui::devtools::protocol::Array< | |
122 ui::devtools::protocol::CSS::StyleDeclarationEdit>> edits, | |
123 std::unique_ptr< | |
124 ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>>* | |
125 result) { | |
126 std::unique_ptr< | |
127 ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>> | |
128 updated_styles = ui::devtools::protocol::Array< | |
129 ui::devtools::protocol::CSS::CSSStyle>::create(); | |
130 for (size_t i = 0; i < edits->length(); i++) { | |
131 auto* edit = edits->get(i); | |
132 int node_id; | |
133 if (!base::StringToInt(edit->getStyleSheetId(), &node_id)) | |
134 return ui::devtools::protocol::Response::Error("Invalid node id"); | |
135 | |
136 gfx::Rect updated_bounds; | |
137 if (!GetBoundsForNodeId(node_id, &updated_bounds)) { | |
138 return ui::devtools::protocol::Response::Error( | |
139 "No node found with that id"); | |
140 } | |
141 | |
142 ui::devtools::protocol::Response response( | |
143 ParseBounds(edit->getText(), updated_bounds)); | |
144 if (!response.isSuccess()) | |
145 return response; | |
146 | |
147 updated_styles->addItem(BuildCSSStyle(node_id, updated_bounds)); | |
148 if (!UpdateBounds(node_id, updated_bounds)) { | |
149 return ui::devtools::protocol::Response::Error( | |
150 "No node found with that id"); | |
151 } | |
152 } | |
153 | |
154 *result = std::move(updated_styles); | |
155 return ui::devtools::protocol::Response::OK(); | |
156 } | |
157 | |
158 void AshDevToolsCSSAgent::OnWindowBoundsChanged(WmWindow* window) { | |
159 InvalidateStyleSheet(dom_agent_->GetNodeIdFromWindow(window)); | |
160 } | |
161 | |
162 void AshDevToolsCSSAgent::OnWidgetBoundsChanged(views::Widget* widget) { | |
163 InvalidateStyleSheet(dom_agent_->GetNodeIdFromWidget(widget)); | |
164 } | |
165 | |
166 void AshDevToolsCSSAgent::OnViewBoundsChanged(views::View* view) { | |
167 InvalidateStyleSheet(dom_agent_->GetNodeIdFromView(view)); | |
168 } | |
169 | |
170 std::unique_ptr<ui::devtools::protocol::CSS::CSSStyle> | |
171 AshDevToolsCSSAgent::GetStylesForNode(int node_id) { | |
172 gfx::Rect bounds; | |
173 return GetBoundsForNodeId(node_id, &bounds) ? BuildCSSStyle(node_id, bounds) | |
174 : nullptr; | |
175 } | |
176 | |
177 void AshDevToolsCSSAgent::InvalidateStyleSheet(int node_id) { | |
178 // The stylesheetId for each node is equivalent to its node_id (as a string). | |
179 frontend()->styleSheetChanged(base::IntToString(node_id)); | |
180 } | |
181 | |
182 bool AshDevToolsCSSAgent::GetBoundsForNodeId(int node_id, gfx::Rect* bounds) { | |
183 WmWindow* window = dom_agent_->GetWindowFromNodeId(node_id); | |
184 if (window) { | |
185 *bounds = window->GetBounds(); | |
186 return true; | |
187 } | |
188 | |
189 views::Widget* widget = dom_agent_->GetWidgetFromNodeId(node_id); | |
190 if (widget) { | |
191 *bounds = widget->GetRestoredBounds(); | |
192 return true; | |
193 } | |
194 | |
195 views::View* view = dom_agent_->GetViewFromNodeId(node_id); | |
196 if (view) { | |
197 *bounds = view->bounds(); | |
198 return true; | |
199 } | |
200 | |
201 return false; | |
202 } | |
203 | |
204 bool AshDevToolsCSSAgent::UpdateBounds(int node_id, const gfx::Rect& bounds) { | |
205 WmWindow* window = dom_agent_->GetWindowFromNodeId(node_id); | |
206 if (window) { | |
207 window->SetBounds(bounds); | |
208 return true; | |
209 } | |
210 | |
211 views::Widget* widget = dom_agent_->GetWidgetFromNodeId(node_id); | |
212 if (widget) { | |
213 widget->SetBounds(bounds); | |
214 return true; | |
215 } | |
216 | |
217 views::View* view = dom_agent_->GetViewFromNodeId(node_id); | |
218 if (view) { | |
219 view->SetBoundsRect(bounds); | |
220 return true; | |
221 } | |
222 | |
223 return false; | |
224 } | |
225 | |
226 } // namespace devtools | |
227 } // namespace ash | |
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