Implement InputWindowDialog with WebUI for bookmark folder management.

chrome/browser/ui/webui/input_window_dialog_webui.cc

+// Copyright (c) 2011 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 "chrome/browser/ui/webui/input_window_dialog_webui.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/json/json_reader.h"
+#include "base/json/json_writer.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/browser_dialogs.h"
+#include "chrome/browser/ui/webui/html_dialog_ui.h"
+#include "chrome/common/url_constants.h"
+#include "content/browser/tab_contents/tab_contents.h"
+
+namespace {
+
+const int kInputWindowDialogWidth = 240;
+const int kInputWindowDialogHeight = 120;
+
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// InputWindowWebUIDailog private methods
+
+InputWindowDialogWebUI::InputWindowDialogWebUI(
+    const string16& window_title,
+    const string16& label,
+    const string16& contents,
+    InputWindowDialog::Delegate* delegate)
+    : handler_(new InputWindowDialogHandler(delegate)),
+      window_title_(window_title),
+      label_(label),
+      contents_(contents),
+      closed_(true),
+      delegate_(delegate) {
+}
+
+InputWindowDialogWebUI::~InputWindowDialogWebUI() {
+}
+
+void InputWindowDialogWebUI::Show() {
+  Browser* browser = BrowserList::GetLastActive();
+  DCHECK(browser);
+  browser->BrowserShowHtmlDialog(this, NULL);
+  closed_ = false;
+}
+
+void InputWindowDialogWebUI::Close() {
+  if (!closed_) {
+    DCHECK(handler_);
+    handler_->CloseDialog();
+  }
+}
+
+bool InputWindowDialogWebUI::IsDialogModal() const {
+  return true;
+}
+
+string16 InputWindowDialogWebUI::GetDialogTitle() const {
+  return window_title_;
+}
+
+GURL InputWindowDialogWebUI::GetDialogContentURL() const {
+  return GURL(chrome::kChromeUIInputWindowDialogURL);
+}
+
+void InputWindowDialogWebUI::GetWebUIMessageHandlers(
+    std::vector<WebUIMessageHandler*>* handlers) const {
+  handlers->push_back(handler_);
+}
+
+void InputWindowDialogWebUI::GetDialogSize(gfx::Size* size) const {
+  size->SetSize(kInputWindowDialogWidth, kInputWindowDialogHeight);
+}
+
+std::string InputWindowDialogWebUI::GetDialogArgs() const {
+  DictionaryValue value;
+  value.SetString("label", label_);
+  value.SetString("contents", contents_);
+  std::string json;
+  base::JSONWriter::Write(&value, false, &json);
+  return json;
+}
+
+void InputWindowDialogWebUI::OnDialogClosed(const std::string& json_retval) {
+  scoped_ptr<Value> root(base::JSONReader::Read(json_retval, false));
+  bool response = false;
+  ListValue* list = NULL;
+  bool accepted = false;
+  // If the dialog closes because of a button click then the json is a list
+  // containing a bool value.  When OK button is clicked, a string in the text
+  // field is added to the list.
+  if (root.get() && root->GetAsList(&list) && list &&
+      list->GetBoolean(0, &response) && response) {
+    DCHECK_EQ(2U, list->GetSize());
+    string16 text;
+    if (list->GetString(1, &text)) {
+      delegate_->InputAccepted(text);
+      accepted = true;
+    }
+  }
+  if (!accepted) {
+    delegate_->InputCanceled();
+  }
+  closed_ = true;
+}
+
+void InputWindowDialogWebUI::OnCloseContents(TabContents* source,
+                                             bool* out_close_dialog) {
+}
+
+bool InputWindowDialogWebUI::ShouldShowDialogTitle() const {
+  return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// InputWindowDialogHandler methods
+
+InputWindowDialogHandler::InputWindowDialogHandler(
+    InputWindowDialog::Delegate* delegate)
+    : delegate_(delegate) {
+}
+
+void InputWindowDialogHandler::CloseDialog() {
+  DCHECK(web_ui_);
+  static_cast<HtmlDialogUI*>(web_ui_)->CloseDialog(NULL);
+}
+
+void InputWindowDialogHandler::RegisterMessages() {
+  web_ui_->RegisterMessageCallback("validate",
+      base::Bind(&InputWindowDialogHandler::Validate,
+                 base::Unretained(this)));
+}
+
+void InputWindowDialogHandler::Validate(const base::ListValue* args) {
+  DCHECK_EQ(1U, args->GetSize());
+  bool valid = false;
+  string16 text;
+  if (args->GetString(0, &text)) {
+    valid = delegate_->IsValid(text);
+  }
+  scoped_ptr<Value> result(Value::CreateBooleanValue(valid));
+  web_ui_->CallJavascriptFunction("inputWindowDialog.ackValidation",
+                                  *result);
+}