OOPIF IME: Renderer Side Changes

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2278 matching lines @@
 
         // Clear focus on the currently focused frame if any.
         if (!m_page)
             return;
 
         LocalFrame* frame = m_page->mainFrame() && m_page->mainFrame()->isLocalFrame()
             ? m_page->deprecatedLocalMainFrame() : nullptr;
         if (!frame)
             return;
 
-        LocalFrame* focusedFrame = m_page->focusController().focusedFrame();
+        LocalFrame* focusedFrame = focusedLocalFrameInWidget();
         if (focusedFrame) {
             // Finish an ongoing composition to delete the composition node.
             if (focusedFrame->inputMethodController().hasComposition()) {
                 WebAutofillClient* autofillClient = WebLocalFrameImpl::fromFrame(focusedFrame)->autofillClient();
 
                 if (autofillClient)
                     autofillClient->setIgnoreTextChanges(true);
 
                 focusedFrame->inputMethodController().confirmComposition();
 
                 if (autofillClient)
                     autofillClient->setIgnoreTextChanges(false);
             }
             m_imeAcceptEvents = false;
         }
     }
 }
 
 bool WebViewImpl::setComposition(
     const WebString& text,
     const WebVector<WebCompositionUnderline>& underlines,
     int selectionStart,
     int selectionEnd)
 {
-    LocalFrame* focused = toLocalFrame(focusedCoreFrame());
-    if (!focused || !m_imeAcceptEvents)
+    LocalFrame* focused = focusedLocalFrameAvailableForIme();
+    if (!focused)
         return false;
 
     if (WebPlugin* plugin = focusedPluginIfInputMethodSupported(focused))
         return plugin->setComposition(text, underlines, selectionStart, selectionEnd);
 
     // The input focus has been moved to another WebWidget object.
     // We should use this |editor| object only to complete the ongoing
     // composition.
     InputMethodController& inputMethodController = focused->inputMethodController();
     if (!focused->editor().canEdit() && !inputMethodController.hasComposition())
@@ skipping 42 matching lines @@
 }
 
 bool WebViewImpl::confirmComposition(const WebString& text)
 {
     UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
     return confirmComposition(text, DoNotKeepSelection);
 }
 
 bool WebViewImpl::confirmComposition(const WebString& text, ConfirmCompositionBehavior selectionBehavior)
 {
-    LocalFrame* focused = toLocalFrame(focusedCoreFrame());
-    if (!focused || !m_imeAcceptEvents)
+    LocalFrame* focused = focusedLocalFrameAvailableForIme();
+    if (!focused)
         return false;
 
     if (WebPlugin* plugin = focusedPluginIfInputMethodSupported(focused))
         return plugin->confirmComposition(text, selectionBehavior);
 
     return focused->inputMethodController().confirmCompositionOrInsertText(text, selectionBehavior == KeepSelection ? InputMethodController::KeepSelection : InputMethodController::DoNotKeepSelection);
 }
 
 bool WebViewImpl::compositionRange(size_t* location, size_t* length)
 {
-    // FIXME: Long term, the focused frame should be a local frame. For now,
-    // return early to avoid crashes.
-    Frame* frame = focusedCoreFrame();
-    if (!frame || frame->isRemoteFrame())
-        return false;
-
-    LocalFrame* focused = toLocalFrame(frame);
-    if (!focused || !m_imeAcceptEvents)
+    LocalFrame* focused = focusedLocalFrameAvailableForIme();
+    if (!focused)
         return false;
 
     const EphemeralRange range = focused->inputMethodController().compositionEphemeralRange();
     if (range.isNull())
         return false;
 
     Element* editable = focused->selection().rootEditableElementOrDocumentElement();
     DCHECK(editable);
     PlainTextRange plainTextRange(PlainTextRange::create(*editable, range));
     if (plainTextRange.isNull())
         return false;
     *location = plainTextRange.start();
     *length = plainTextRange.length();
     return true;
 }
 
 WebTextInputInfo WebViewImpl::textInputInfo()
 {
     WebTextInputInfo info;
 
-    Frame* focusedFrame = focusedCoreFrame();
-    if (!focusedFrame->isLocalFrame())
-        return info;
-
-    LocalFrame* focused = toLocalFrame(focusedFrame);
+    LocalFrame* focused = focusedLocalFrameInWidget();
     if (!focused)
         return info;
 
     FrameSelection& selection = focused->selection();
     if (!selection.isAvailable()) {
         // plugins/mouse-capture-inside-shadow.html reaches here.
         return info;
     }
     Element* element = selection.selection().rootEditableElement();
     if (!element)
@@ skipping 32 matching lines @@
             info.compositionStart = plainTextRange.start();
             info.compositionEnd = plainTextRange.end();
         }
     }
 
     return info;
 }
 
 WebTextInputType WebViewImpl::textInputType()
 {
-    LocalFrame* focusedFrame = m_page->focusController().focusedFrame();
+    LocalFrame* focusedFrame = focusedLocalFrameInWidget();
     if (!focusedFrame)
         return WebTextInputTypeNone;
 
     if (!focusedFrame->selection().isAvailable()) {
         // "mouse-capture-inside-shadow.html" reaches here.
         return WebTextInputTypeNone;
     }
 
     // It's important to preserve the equivalence of textInputInfo().type and textInputType(),
     // so perform the same rootEditableElement() existence check here for consistency.
@@ skipping 172 matching lines @@
 WebPlugin* WebViewImpl::focusedPluginIfInputMethodSupported(LocalFrame* frame)
 {
     WebPluginContainerImpl* container = WebLocalFrameImpl::currentPluginContainer(frame);
     if (container && container->supportsInputMethod())
         return container->plugin();
     return nullptr;
 }
 
 bool WebViewImpl::selectionTextDirection(WebTextDirection& start, WebTextDirection& end) const
 {
-    const Frame* frame = focusedCoreFrame();
-    if (!frame || frame->isRemoteFrame())
+    const LocalFrame* frame = focusedLocalFrameInWidget();
+    if (!frame)
         return false;
-    const FrameSelection& selection = toLocalFrame(frame)->selection();
+
+    const FrameSelection& selection = frame->selection();
     if (!selection.isAvailable()) {
         // plugins/mouse-capture-inside-shadow.html reaches here.
         return false;
     }
     if (selection.selection().toNormalizedEphemeralRange().isNull())
         return false;
     start = toWebTextDirection(primaryDirectionOf(*selection.start().anchorNode()));
     end = toWebTextDirection(primaryDirectionOf(*selection.end().anchorNode()));
     return true;
 }
 
 bool WebViewImpl::isSelectionAnchorFirst() const
 {
-    const Frame* frame = focusedCoreFrame();
-    if (!frame || frame->isRemoteFrame())
+    const LocalFrame* frame = focusedLocalFrameInWidget();
+    if (!frame)
         return false;
-    FrameSelection& selection = toLocalFrame(frame)->selection();
+
+    FrameSelection& selection = frame->selection();
     if (!selection.isAvailable()) {
         // plugins/mouse-capture-inside-shadow.html reaches here.
         return false;
     }
     return selection.selection().isBaseFirst();
 }
 
 WebColor WebViewImpl::backgroundColor() const
 {
     if (isTransparent())
         return Color::transparent;
     if (!m_page)
         return m_baseBackgroundColor;
     if (!m_page->mainFrame())
         return m_baseBackgroundColor;
     if (!m_page->mainFrame()->isLocalFrame())
         return m_baseBackgroundColor;
     FrameView* view = m_page->deprecatedLocalMainFrame()->view();
     return view->documentBackgroundColor().rgb();
 }
 
 WebPagePopup* WebViewImpl::pagePopup() const
 {
     return m_pagePopup.get();
 }
 
 bool WebViewImpl::caretOrSelectionRange(size_t* location, size_t* length)
 {
-    const LocalFrame* focused = toLocalFrame(focusedCoreFrame());
+    const LocalFrame* focused = focusedLocalFrameInWidget();
     if (!focused)
         return false;
 
     PlainTextRange selectionOffsets = focused->inputMethodController().getSelectionOffsets();
     if (selectionOffsets.isNull())
         return false;
 
     *location = selectionOffsets.start();
     *length = selectionOffsets.length();
     return true;
 }
 
 void WebViewImpl::setTextDirection(WebTextDirection direction)
 {
     // The Editor::setBaseWritingDirection() function checks if we can change
     // the text direction of the selected node and updates its DOM "dir"
     // attribute and its CSS "direction" property.
     // So, we just call the function as Safari does.
-    const LocalFrame* focused = toLocalFrame(focusedCoreFrame());
+    const LocalFrame* focused = focusedLocalFrameInWidget();
     if (!focused)
         return;
 
     Editor& editor = focused->editor();
     if (!editor.canEdit())
         return;
 
     switch (direction) {
     case WebTextDirectionDefault:
         editor.setBaseWritingDirection(NaturalWritingDirection);
@@ skipping 61 matching lines @@
     if (page())
         page()->pointerLockController().didLosePointerLock();
 }
 
 void WebViewImpl::didChangeWindowResizerRect()
 {
     if (mainFrameImpl()->frameView())
         mainFrameImpl()->frameView()->windowResizerRectChanged();
 }
 
+bool WebViewImpl::getCompositionCharacterBounds(WebVector<WebRect>& bounds)
+{
+    size_t offset = 0;
+    size_t characterCount = 0;
+    if (!compositionRange(&offset, &characterCount))
+        return false;
+
+    if (characterCount == 0)
+        return false;
+
+    WebLocalFrame* frame = focusedFrame();
+
+    // Only consider frames whose local root is the main frame. For other
+    // local frames which have different local roots, the corresponding
+    // WebFrameWidget will handle this task.
+    if (frame->localRoot() != mainFrameImpl())
+        return false;
+
+    WebVector<WebRect> result(characterCount);
+    WebRect webrect;
+    for (size_t i = 0; i < characterCount; ++i) {
+        if (!frame->firstRectForCharacterRange(offset + i, 1, webrect)) {
+            DLOG(ERROR) << "Could not retrieve character rectangle at " << i;
+            return false;
+        }
+        result[i] = webrect;
+    }
+    bounds.swap(result);
+    return true;
+}
+
+void WebViewImpl::applyReplacementRange(int start, int length)
+{
+    if (WebLocalFrame* frame = focusedFrame()) {
+        WebRange webrange = WebRange::fromDocumentRange(frame, start, length);
+        if (!webrange.isNull())
+            frame->selectRange(webrange);
+    }
+}
+
 // WebView --------------------------------------------------------------------
 
 WebSettingsImpl* WebViewImpl::settingsImpl()
 {
     if (!m_webSettings)
         m_webSettings = wrapUnique(new WebSettingsImpl(&m_page->settings(), m_devToolsEmulator.get()));
     DCHECK(m_webSettings);
     return m_webSettings.get();
 }
 
@@ skipping 1727 matching lines @@
 float WebViewImpl::deviceScaleFactor() const
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
+LocalFrame* WebViewImpl::focusedLocalFrameInWidget() const
+{
+    if (!mainFrameImpl())
+        return nullptr;
+
+    LocalFrame* focusedFrame = toLocalFrame(focusedCoreFrame());
+    if (focusedFrame->localFrameRoot() != mainFrameImpl()->frame())
+        return nullptr;
+    return focusedFrame;
+}
+
+LocalFrame* WebViewImpl::focusedLocalFrameAvailableForIme() const
+{
+    return m_imeAcceptEvents ? focusedLocalFrameInWidget() : nullptr;
+}
+
 } // namespace blink