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| 1 // Copyright 2014 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 "athena/virtual_keyboard/public/virtual_keyboard_bindings.h" | |
| 6 | |
| 7 #include "base/json/json_string_value_serializer.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/macros.h" | |
| 10 #include "base/strings/stringprintf.h" | |
| 11 #include "base/strings/utf_string_conversions.h" | |
| 12 #include "base/values.h" | |
| 13 #include "content/public/common/bindings_policy.h" | |
| 14 #include "content/public/renderer/render_frame.h" | |
| 15 #include "content/public/renderer/render_view.h" | |
| 16 #include "content/public/renderer/render_view_observer.h" | |
| 17 #include "gin/handle.h" | |
| 18 #include "gin/object_template_builder.h" | |
| 19 #include "gin/wrappable.h" | |
| 20 #include "third_party/WebKit/public/web/WebKit.h" | |
| 21 #include "third_party/WebKit/public/web/WebLocalFrame.h" | |
| 22 #include "ui/keyboard/keyboard_constants.h" | |
| 23 | |
| 24 namespace { | |
| 25 | |
| 26 struct VKEvent { | |
| 27 std::string event_type; | |
| 28 int char_value; | |
| 29 int key_code; | |
| 30 std::string key_name; | |
| 31 int modifiers; | |
| 32 }; | |
| 33 | |
| 34 } // namespace | |
| 35 | |
| 36 namespace gin { | |
| 37 | |
| 38 template <> | |
| 39 struct Converter<VKEvent> { | |
| 40 static bool FromV8(v8::Isolate* isolate, | |
| 41 v8::Handle<v8::Value> val, | |
| 42 VKEvent* event) { | |
| 43 if (!val->IsObject()) | |
| 44 return false; | |
| 45 v8::Handle<v8::Object> dict(v8::Handle<v8::Object>::Cast(val)); | |
| 46 | |
| 47 if (!Converter<std::string>::FromV8( | |
| 48 isolate, | |
| 49 dict->Get(v8::String::NewFromUtf8(isolate, "type")), | |
| 50 &event->event_type)) | |
| 51 return false; | |
| 52 if (!Converter<int32_t>::FromV8( | |
| 53 isolate, | |
| 54 dict->Get(v8::String::NewFromUtf8(isolate, "charValue")), | |
| 55 &event->char_value)) | |
| 56 return false; | |
| 57 if (!Converter<int32_t>::FromV8( | |
| 58 isolate, | |
| 59 dict->Get(v8::String::NewFromUtf8(isolate, "keyCode")), | |
| 60 &event->key_code)) | |
| 61 return false; | |
| 62 if (!Converter<std::string>::FromV8( | |
| 63 isolate, | |
| 64 dict->Get(v8::String::NewFromUtf8(isolate, "keyName")), | |
| 65 &event->key_name)) | |
| 66 return false; | |
| 67 if (!Converter<int32_t>::FromV8( | |
| 68 isolate, | |
| 69 dict->Get(v8::String::NewFromUtf8(isolate, "modifiers")), | |
| 70 &event->modifiers)) | |
| 71 return false; | |
| 72 | |
| 73 return true; | |
| 74 } | |
| 75 }; | |
| 76 | |
| 77 } // namespace gin | |
| 78 | |
| 79 namespace athena { | |
| 80 | |
| 81 namespace { | |
| 82 | |
| 83 class VKBindings : public gin::Wrappable<VKBindings> { | |
| 84 public: | |
| 85 static gin::WrapperInfo kWrapperInfo; | |
| 86 | |
| 87 static void Install(content::RenderView* render_view) { | |
| 88 blink::WebFrame* web_frame = | |
| 89 render_view->GetMainRenderFrame()->GetWebFrame(); | |
| 90 v8::Isolate* isolate = blink::mainThreadIsolate(); | |
| 91 v8::HandleScope handle_scope(isolate); | |
| 92 v8::Handle<v8::Context> context = web_frame->mainWorldScriptContext(); | |
| 93 if (context.IsEmpty()) | |
| 94 return; | |
| 95 | |
| 96 v8::Context::Scope context_scope(context); | |
| 97 | |
| 98 v8::Handle<v8::Object> global = context->Global(); | |
| 99 v8::Handle<v8::Object> chrome = | |
| 100 global->Get(gin::StringToV8(isolate, "chrome"))->ToObject(); | |
| 101 CHECK(!chrome.IsEmpty()); | |
| 102 | |
| 103 gin::Handle<VKBindings> controller = | |
| 104 gin::CreateHandle(isolate, new VKBindings(render_view)); | |
| 105 if (controller.IsEmpty()) | |
| 106 return; | |
| 107 chrome->Set(gin::StringToSymbol(isolate, "virtualKeyboardPrivate"), | |
| 108 controller.ToV8()); | |
| 109 | |
| 110 const std::string kInputBoxFocusedEvent = | |
| 111 "chrome.virtualKeyboardPrivate.onTextInputBoxFocused = {};" | |
| 112 "chrome.virtualKeyboardPrivate.onTextInputBoxFocused.addListener = " | |
| 113 " function(callback) { " | |
| 114 " window.setTimeout(function() {" | |
| 115 " callback({type: 'text'});" | |
| 116 " }, 100);" | |
| 117 " };"; | |
| 118 render_view->GetMainRenderFrame()->ExecuteJavaScript( | |
| 119 base::UTF8ToUTF16(kInputBoxFocusedEvent)); | |
| 120 } | |
| 121 | |
| 122 private: | |
| 123 explicit VKBindings(content::RenderView* render_view) | |
| 124 : render_view_(render_view) {} | |
| 125 virtual ~VKBindings() {} | |
| 126 | |
| 127 // gin::WrappableBase | |
| 128 virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder( | |
| 129 v8::Isolate* isolate) OVERRIDE { | |
| 130 return gin::Wrappable<VKBindings>::GetObjectTemplateBuilder(isolate) | |
| 131 .SetMethod("moveCursor", &VKBindings::NotImplemented) | |
| 132 .SetMethod("sendKeyEvent", &VKBindings::SendKeyEvent) | |
| 133 .SetMethod("hideKeyboard", &VKBindings::HideKeyboard) | |
| 134 .SetMethod("lockKeyboard", &VKBindings::NotImplemented) | |
| 135 .SetMethod("keyboardLoaded", &VKBindings::NotImplemented) | |
| 136 .SetMethod("getKeyboardConfig", &VKBindings::NotImplemented); | |
| 137 } | |
| 138 | |
| 139 void SendKeyEvent(gin::Arguments* args) { | |
| 140 VKEvent event; | |
| 141 if (!args->GetNext(&event)) { | |
| 142 LOG(ERROR) << "Failed to get the type"; | |
| 143 return; | |
| 144 } | |
| 145 base::ListValue params; | |
| 146 params.Set(0, new base::StringValue(event.event_type)); | |
| 147 params.Set(1, new base::FundamentalValue(event.char_value)); | |
| 148 params.Set(2, new base::FundamentalValue(event.key_code)); | |
| 149 params.Set(3, new base::StringValue(event.key_name)); | |
| 150 params.Set(4, new base::FundamentalValue(event.modifiers)); | |
| 151 | |
| 152 std::string params_json; | |
| 153 JSONStringValueSerializer serializer(¶ms_json); | |
| 154 if (!serializer.Serialize(params)) | |
| 155 return; | |
| 156 | |
| 157 render_view_->GetMainRenderFrame()->ExecuteJavaScript( | |
| 158 base::UTF8ToUTF16("chrome.send('sendKeyEvent', " + params_json + ")")); | |
| 159 } | |
| 160 | |
| 161 void HideKeyboard() { | |
| 162 render_view_->GetMainRenderFrame()->ExecuteJavaScript( | |
| 163 base::UTF8ToUTF16("chrome.send('hideKeyboard', [])")); | |
| 164 } | |
| 165 | |
| 166 void NotImplemented(gin::Arguments* args) { NOTIMPLEMENTED(); } | |
| 167 | |
| 168 content::RenderView* render_view_; | |
| 169 | |
| 170 DISALLOW_COPY_AND_ASSIGN(VKBindings); | |
| 171 }; | |
| 172 | |
| 173 gin::WrapperInfo VKBindings::kWrapperInfo = {gin::kEmbedderNativeGin}; | |
| 174 | |
| 175 class VirtualKeyboardBindingsImpl : public VirtualKeyboardBindings, | |
| 176 public content::RenderViewObserver { | |
| 177 public: | |
| 178 explicit VirtualKeyboardBindingsImpl(content::RenderView* render_view) | |
| 179 : content::RenderViewObserver(render_view) {} | |
| 180 | |
| 181 virtual ~VirtualKeyboardBindingsImpl() {} | |
| 182 | |
| 183 private: | |
| 184 // content::RenderViewObserver: | |
| 185 virtual void Navigate(const GURL& url) OVERRIDE { | |
| 186 bool enabled_bindings = render_view()->GetEnabledBindings(); | |
| 187 if (!(enabled_bindings & content::BINDINGS_POLICY_WEB_UI)) | |
| 188 return; | |
| 189 if (url.GetOrigin() == GURL(keyboard::kKeyboardURL)) | |
| 190 VKBindings::Install(render_view()); | |
| 191 } | |
| 192 DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardBindingsImpl); | |
| 193 }; | |
| 194 | |
| 195 } // namespace | |
| 196 | |
| 197 VirtualKeyboardBindings* VirtualKeyboardBindings::Create( | |
| 198 content::RenderView* render_view) { | |
| 199 return new VirtualKeyboardBindingsImpl(render_view); | |
| 200 } | |
| 201 | |
| 202 } // namespace athena | |
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Chromium Code Reviews
Issue 328303008:
athena: Use mojo to provide the bindings for the virtual keyboard. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src