Move remaining Autofill code to //components/autofill.

chrome/renderer/page_click_tracker.cc

-// Copyright (c) 2012 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/page_click_tracker.h"
-
-#include "chrome/renderer/autofill/form_autofill_util.h"
-#include "chrome/renderer/page_click_listener.h"
-#include "content/public/renderer/render_view.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMMouseEvent.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
-
-using WebKit::WebDOMEvent;
-using WebKit::WebDOMMouseEvent;
-using WebKit::WebElement;
-using WebKit::WebFormControlElement;
-using WebKit::WebFrame;
-using WebKit::WebInputElement;
-using WebKit::WebInputEvent;
-using WebKit::WebMouseEvent;
-using WebKit::WebNode;
-using WebKit::WebString;
-using WebKit::WebView;
-
-namespace {
-
-// Casts |node| to a WebInputElement.
-// Returns an empty (isNull()) WebInputElement if |node| is not a text field.
-const WebInputElement GetTextWebInputElement(const WebNode& node) {
-  if (!node.isElementNode())
-    return WebInputElement();
-  const WebElement element = node.toConst<WebElement>();
-  if (!element.hasTagName("input"))
-    return WebInputElement();
-  const WebInputElement* input = WebKit::toWebInputElement(&element);
-  if (!autofill::IsTextInput(input))
-    return WebInputElement();
-  return *input;
-}
-
-// Checks to see if a text field was the previously selected node and is now
-// losing its focus.
-bool DidSelectedTextFieldLoseFocus(const WebNode& newly_clicked_node) {
-  WebKit::WebNode focused_node = newly_clicked_node.document().focusedNode();
-
-  if (focused_node.isNull() || GetTextWebInputElement(focused_node).isNull())
-    return false;
-
-  return focused_node != newly_clicked_node;
-}
-
-}  // namespace
-
-PageClickTracker::PageClickTracker(content::RenderView* render_view)
-    : content::RenderViewObserver(render_view),
-      was_focused_(false) {
-}
-
-PageClickTracker::~PageClickTracker() {
-  // Note that even though RenderView calls FrameDetached when notified that
-  // a frame was closed, it might not always get that notification from WebKit
-  // for all frames.
-  // By the time we get here, the frame could have been destroyed so we cannot
-  // unregister listeners in frames remaining in tracked_frames_ as they might
-  // be invalid.
-}
-
-void PageClickTracker::DidHandleMouseEvent(const WebMouseEvent& event) {
-  if (event.type != WebInputEvent::MouseDown ||
-      last_node_clicked_.isNull()) {
-    return;
-  }
-
-  // We are only interested in text field clicks.
-  const WebInputElement input_element =
-      GetTextWebInputElement(last_node_clicked_);
-  if (input_element.isNull())
-    return;
-
-  bool is_focused = (last_node_clicked_ == render_view()->GetFocusedNode());
-  ObserverListBase<PageClickListener>::Iterator it(listeners_);
-  PageClickListener* listener;
-  while ((listener = it.GetNext()) != NULL) {
-    if (listener->InputElementClicked(input_element, was_focused_, is_focused))
-      break;
-  }
-}
-
-void PageClickTracker::AddListener(PageClickListener* listener) {
-  listeners_.AddObserver(listener);
-}
-
-void PageClickTracker::RemoveListener(PageClickListener* listener) {
-  listeners_.RemoveObserver(listener);
-}
-
-void PageClickTracker::DidFinishDocumentLoad(WebKit::WebFrame* frame) {
-  tracked_frames_.push_back(frame);
-  frame->document().addEventListener("mousedown", this, false);
-}
-
-void PageClickTracker::FrameDetached(WebKit::WebFrame* frame) {
-  FrameList::iterator iter =
-      std::find(tracked_frames_.begin(), tracked_frames_.end(), frame);
-  if (iter == tracked_frames_.end()) {
-    // Some frames might never load contents so we may not have a listener on
-    // them.  Calling removeEventListener() on them would trigger an assert, so
-    // we need to keep track of which frames we are listening to.
-    return;
-  }
-  tracked_frames_.erase(iter);
-}
-
-void PageClickTracker::handleEvent(const WebDOMEvent& event) {
-  last_node_clicked_.reset();
-
-  if (!event.isMouseEvent())
-    return;
-
-  const WebDOMMouseEvent mouse_event = event.toConst<WebDOMMouseEvent>();
-  DCHECK(mouse_event.buttonDown());
-  if (mouse_event.button() != 0)
-    return;  // We are only interested in left clicks.
-
-  // Remember which node has focus before the click is processed.
-  // We'll get a notification once the mouse event has been processed
-  // (DidHandleMouseEvent), we'll notify the listener at that point.
-  WebNode node = mouse_event.target();
-  if (node.isNull())
-    // Node may be null if the target was an SVG instance element from a <use>
-    // tree and the tree has been rebuilt due to an earlier event.
-    return;
-
-  HandleTextFieldMaybeLosingFocus(node);
-
-  // We are only interested in text field clicks.
-  if (GetTextWebInputElement(node).isNull())
-    return;
-
-  last_node_clicked_ = node;
-  was_focused_ = (node.document().focusedNode() == last_node_clicked_);
-}
-
-void PageClickTracker::HandleTextFieldMaybeLosingFocus(
-    const WebNode& newly_clicked_node) {
-  if (!DidSelectedTextFieldLoseFocus(newly_clicked_node))
-    return;
-
-  ObserverListBase<PageClickListener>::Iterator it(listeners_);
-  PageClickListener* listener;
-  while ((listener = it.GetNext()) != NULL) {
-    if (listener->InputElementLostFocus())
-      break;
-  }
-}