Move WebInputMethodControllerImpl to core/exported/ & break dependencies.

third_party/WebKit/Source/web/WebInputMethodControllerImpl.cpp

-// Copyright 2016 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 "web/WebInputMethodControllerImpl.h"
-
-#include "core/InputTypeNames.h"
-#include "core/dom/DocumentUserGestureToken.h"
-#include "core/editing/CompositionUnderlineVectorBuilder.h"
-#include "core/editing/EditingUtilities.h"
-#include "core/editing/Editor.h"
-#include "core/editing/EphemeralRange.h"
-#include "core/editing/FrameSelection.h"
-#include "core/editing/InputMethodController.h"
-#include "core/editing/PlainTextRange.h"
-#include "core/exported/WebPluginContainerBase.h"
-#include "core/frame/LocalFrame.h"
-#include "core/page/FocusController.h"
-#include "core/page/Page.h"
-#include "platform/UserGestureIndicator.h"
-#include "public/platform/WebString.h"
-#include "public/web/WebPlugin.h"
-#include "public/web/WebRange.h"
-#include "web/WebLocalFrameImpl.h"
-
-namespace blink {
-
-WebInputMethodControllerImpl::WebInputMethodControllerImpl(
-    WebLocalFrameImpl* web_local_frame)
-    : web_local_frame_(web_local_frame) {}
-
-WebInputMethodControllerImpl::~WebInputMethodControllerImpl() {}
-
-// static
-WebInputMethodControllerImpl* WebInputMethodControllerImpl::FromFrame(
-    LocalFrame* frame) {
-  WebLocalFrameImpl* web_local_frame_impl = WebLocalFrameImpl::FromFrame(frame);
-  return web_local_frame_impl ? web_local_frame_impl->GetInputMethodController()
-                              : nullptr;
-}
-
-DEFINE_TRACE(WebInputMethodControllerImpl) {
-  visitor->Trace(web_local_frame_);
-}
-
-bool WebInputMethodControllerImpl::SetComposition(
-    const WebString& text,
-    const WebVector<WebCompositionUnderline>& underlines,
-    const WebRange& replacement_range,
-    int selection_start,
-    int selection_end) {
-  if (WebPlugin* plugin = FocusedPluginIfInputMethodSupported()) {
-    return plugin->SetComposition(text, underlines, replacement_range,
-                                  selection_start, selection_end);
-  }
-
-  // We should use this |editor| object only to complete the ongoing
-  // composition.
-  if (!GetFrame()->GetEditor().CanEdit() &&
-      !GetInputMethodController().HasComposition())
-    return false;
-
-  // Select the range to be replaced with the composition later.
-  if (!replacement_range.IsNull())
-    web_local_frame_->SelectRange(replacement_range);
-
-  // We should verify the parent node of this IME composition node are
-  // editable because JavaScript may delete a parent node of the composition
-  // node. In this case, WebKit crashes while deleting texts from the parent
-  // node, which doesn't exist any longer.
-  const EphemeralRange range =
-      GetInputMethodController().CompositionEphemeralRange();
-  if (range.IsNotNull()) {
-    Node* node = range.StartPosition().ComputeContainerNode();
-    GetFrame()->GetDocument()->UpdateStyleAndLayoutTree();
-    if (!node || !HasEditableStyle(*node))
-      return false;
-  }
-
-  UserGestureIndicator gesture_indicator(DocumentUserGestureToken::Create(
-      GetFrame()->GetDocument(), UserGestureToken::kNewGesture));
-
-  // When the range of composition underlines overlap with the range between
-  // selectionStart and selectionEnd, WebKit somehow won't paint the selection
-  // at all (see InlineTextBox::paint() function in InlineTextBox.cpp).
-  // But the selection range actually takes effect.
-  GetInputMethodController().SetComposition(
-      String(text), CompositionUnderlineVectorBuilder::Build(underlines),
-      selection_start, selection_end);
-
-  return text.IsEmpty() || GetInputMethodController().HasComposition();
-}
-
-bool WebInputMethodControllerImpl::FinishComposingText(
-    ConfirmCompositionBehavior selection_behavior) {
-  // TODO(ekaramad): Here and in other IME calls we should expect the
-  // call to be made when our frame is focused. This, however, is not the case
-  // all the time. For instance, resetInputMethod call on RenderViewImpl could
-  // be after losing the focus on frame. But since we return the core frame
-  // in WebViewImpl::focusedLocalFrameInWidget(), we will reach here with
-  // |m_webLocalFrame| not focused on page.
-
-  if (WebPlugin* plugin = FocusedPluginIfInputMethodSupported())
-    return plugin->FinishComposingText(selection_behavior);
-
-  // TODO(editing-dev): The use of updateStyleAndLayoutIgnorePendingStylesheets
-  // needs to be audited.  See http://crbug.com/590369 for more details.
-  GetFrame()->GetDocument()->UpdateStyleAndLayoutIgnorePendingStylesheets();
-
-  return GetInputMethodController().FinishComposingText(
-      selection_behavior == WebInputMethodController::kKeepSelection
-          ? InputMethodController::kKeepSelection
-          : InputMethodController::kDoNotKeepSelection);
-}
-
-bool WebInputMethodControllerImpl::CommitText(
-    const WebString& text,
-    const WebVector<WebCompositionUnderline>& underlines,
-    const WebRange& replacement_range,
-    int relative_caret_position) {
-  UserGestureIndicator gesture_indicator(DocumentUserGestureToken::Create(
-      GetFrame()->GetDocument(), UserGestureToken::kNewGesture));
-
-  if (WebPlugin* plugin = FocusedPluginIfInputMethodSupported()) {
-    return plugin->CommitText(text, underlines, replacement_range,
-                              relative_caret_position);
-  }
-
-  // Select the range to be replaced with the composition later.
-  if (!replacement_range.IsNull())
-    web_local_frame_->SelectRange(replacement_range);
-
-  // TODO(editing-dev): The use of updateStyleAndLayoutIgnorePendingStylesheets
-  // needs to be audited.  See http://crbug.com/590369 for more details.
-  GetFrame()->GetDocument()->UpdateStyleAndLayoutIgnorePendingStylesheets();
-
-  return GetInputMethodController().CommitText(
-      text, CompositionUnderlineVectorBuilder::Build(underlines),
-      relative_caret_position);
-}
-
-WebTextInputInfo WebInputMethodControllerImpl::TextInputInfo() {
-  return GetFrame()->GetInputMethodController().TextInputInfo();
-}
-
-WebTextInputType WebInputMethodControllerImpl::TextInputType() {
-  return GetFrame()->GetInputMethodController().TextInputType();
-}
-
-LocalFrame* WebInputMethodControllerImpl::GetFrame() const {
-  return web_local_frame_->GetFrame();
-}
-
-InputMethodController& WebInputMethodControllerImpl::GetInputMethodController()
-    const {
-  return GetFrame()->GetInputMethodController();
-}
-
-WebPlugin* WebInputMethodControllerImpl::FocusedPluginIfInputMethodSupported()
-    const {
-  WebPluginContainerBase* container = GetFrame()->GetWebPluginContainerBase();
-  if (container && container->SupportsInputMethod()) {
-    return container->Plugin();
-  }
-  return nullptr;
-}
-
-}  // namespace blink