Forward textfield focus event to the browser.

chrome/renderer/render_view.cc

 // Copyright (c) 2010 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/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 91 matching lines @@
 #include "net/base/net_errors.h"
 #include "skia/ext/bitmap_platform_device.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebAccessibilityCache.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebAccessibilityObject.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebCString.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDataSource.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDevToolsAgent.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDragData.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFileChooserParams.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFileSystem.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFileSystemCallbacks.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFindOptions.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFormControlElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFormElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebHistoryItem.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebImage.h"
@@ skipping 74 matching lines @@
 using WebKit::WebContextMenuData;
 using WebKit::WebCookieJar;
 using WebKit::WebData;
 using WebKit::WebDataSource;
 using WebKit::WebDevToolsAgent;
 using WebKit::WebDocument;
 using WebKit::WebDragData;
 using WebKit::WebDragOperation;
 using WebKit::WebDragOperationsMask;
 using WebKit::WebEditingAction;
+using WebKit::WebElement;
 using WebKit::WebExternalPopupMenu;
 using WebKit::WebExternalPopupMenuClient;
 using WebKit::WebFileChooserCompletion;
 using WebKit::WebFileSystem;
 using WebKit::WebFileSystemCallbacks;
 using WebKit::WebFindOptions;
 using WebKit::WebFormControlElement;
 using WebKit::WebFormElement;
 using WebKit::WebFrame;
 using WebKit::WebHistoryItem;
@@ skipping 184 matching lines @@
     // the languages CLD can detect. As a result, it'll return the invalid
     // language code for tradtional Chinese among others.
     // |LanguageCodeWithDialect| will go through ISO 639-1, ISO-639-2 and
     // 'other' tables to do the 'right' thing. In addition, it'll return zh-CN
     // for Simplified Chinese.
     language = LanguageCodeWithDialects(cld_language);
   }
   return language;
 }
 
+// Returns true if the parameter node is a textfield, text area or a content
+// editable div.
+static bool IsEditableNode(const WebNode& node) {
+  bool is_editable_node = false;
+  if (!node.isNull()) {
+    if (node.isContentEditable()) {
+      is_editable_node = true;
+    } else if (node.isElementNode()) {
+      is_editable_node =
+          node.toConst<WebElement>().isTextFormControlElement();
+    }
+  }
+  return is_editable_node;
+}
+
 static bool WebAccessibilityNotificationToViewHostMsg(
     WebAccessibilityNotification notification,
     ViewHostMsg_AccessibilityNotification_Params::NotificationType* type) {
   switch (notification) {
     case WebKit::WebAccessibilityNotificationCheckedStateChanged:
       *type = ViewHostMsg_AccessibilityNotification_Params::
           NOTIFICATION_TYPE_CHECK_STATE_CHANGED;
       break;
     case WebKit::WebAccessibilityNotificationChildrenChanged:
       *type = ViewHostMsg_AccessibilityNotification_Params::
@@ skipping 358 matching lines @@
     IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDragOver, OnDragTargetDragOver)
     IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDragLeave, OnDragTargetDragLeave)
     IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDrop, OnDragTargetDrop)
     IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
     IPC_MESSAGE_HANDLER(ViewMsg_SetDOMUIProperty, OnSetDOMUIProperty)
     IPC_MESSAGE_HANDLER(ViewMsg_DragSourceEndedOrMoved,
                         OnDragSourceEndedOrMoved)
     IPC_MESSAGE_HANDLER(ViewMsg_DragSourceSystemDragEnded,
                         OnDragSourceSystemDragEnded)
     IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
+    IPC_MESSAGE_HANDLER(ViewMsg_ScrollFocusedEditableNodeIntoView,
+                        OnScrollFocusedEditableNodeIntoView)
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
     IPC_MESSAGE_HANDLER(ViewMsg_SetAltErrorPageURL, OnSetAltErrorPageURL)
     IPC_MESSAGE_HANDLER(ViewMsg_InstallMissingPlugin, OnInstallMissingPlugin)
     IPC_MESSAGE_HANDLER(ViewMsg_LoadBlockedPlugins, OnLoadBlockedPlugins)
     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
     IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
                         OnGetAllSavableResourceLinksForCurrentPage)
     IPC_MESSAGE_HANDLER(
@@ skipping 553 matching lines @@
       WebString::fromUTF8("SelectAll"));
   UserMetricsRecordAction("SelectAll");
 }
 
 void RenderView::OnSetInitialFocus(bool reverse) {
   if (!webview())
     return;
   webview()->setInitialFocus(reverse);
 }
 
+void RenderView::OnScrollFocusedEditableNodeIntoView() {
+  if (!webview())
+    return;
+  WebFrame* focused_frame = webview()->focusedFrame();
+  if (focused_frame) {
+    WebDocument doc = focused_frame->document();
+    if (!doc.isNull()) {
+      WebNode node = doc.focusedNode();
+      if (IsEditableNode(node))
+        // TODO(varunjain): Change webkit API to scroll a particular node into
+        // view and use that API here instead.
+        webview()->scrollFocusedNodeIntoView();
+    }
+  }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 void RenderView::SetContentSettings(const ContentSettings& settings) {
   current_content_settings_ = settings;
 }
 
 // Tell the embedding application that the URL of the active page has changed
 void RenderView::UpdateURL(WebFrame* frame) {
   WebDataSource* ds = frame->dataSource();
   DCHECK(ds);
@@ skipping 933 matching lines @@
 
 void RenderView::focusNext() {
   Send(new ViewHostMsg_TakeFocus(routing_id_, false));
 }
 
 void RenderView::focusPrevious() {
   Send(new ViewHostMsg_TakeFocus(routing_id_, true));
 }
 
 void RenderView::focusedNodeChanged(const WebNode& node) {
-  Send(new ViewHostMsg_FocusedNodeChanged(routing_id_));
+  Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
 
   if (WebAccessibilityCache::accessibilityEnabled() && node.isNull()) {
     // TODO(ctguil): Make WebKit send this notification.
     // When focus is cleared notify accessibility that the document is focused.
     postAccessibilityNotification(
         webview()->accessibilityObject(),
         WebKit::WebAccessibilityNotificationFocusedUIElementChanged);
   }
 }
 
@@ skipping 3765 matching lines @@
       IPC::PlatformFileForTransitToPlatformFile(file_for_transit),
       message_id);
 }
 
 #if defined(OS_MACOSX)
 void RenderView::OnSelectPopupMenuItem(int selected_index) {
   external_popup_menu_->DidSelectItem(selected_index);
   external_popup_menu_.reset();
 }
 #endif