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// Copyright (c) 2006-2008 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.
#ifndef WEBKIT_GLUE_EDITOR_CLIENT_IMPL_H__
#define WEBKIT_GLUE_EDITOR_CLIENT_IMPL_H__
#include "DOMWindow.h"
#include "EditorClient.h"
#include "Timer.h"
#include <wtf/Deque.h>
namespace WebCore {
class Frame;
class HTMLInputElement;
class Node;
class PlatformKeyboardEvent;
}
class WebViewImpl;
class EditorClientImpl : public WebCore::EditorClient {
public:
EditorClientImpl(WebViewImpl* webview);
virtual ~EditorClientImpl();
virtual void pageDestroyed();
virtual bool shouldShowDeleteInterface(WebCore::HTMLElement*);
virtual bool smartInsertDeleteEnabled();
virtual bool isSelectTrailingWhitespaceEnabled();
virtual bool isContinuousSpellCheckingEnabled();
virtual void toggleContinuousSpellChecking();
virtual bool isGrammarCheckingEnabled();
virtual void toggleGrammarChecking();
virtual int spellCheckerDocumentTag();
virtual bool isEditable();
virtual bool shouldBeginEditing(WebCore::Range* range);
virtual bool shouldEndEditing(WebCore::Range* range);
virtual bool shouldInsertNode(WebCore::Node* node, WebCore::Range* range,
WebCore::EditorInsertAction action);
virtual bool shouldInsertText(const WebCore::String& text, WebCore::Range* range,
WebCore::EditorInsertAction action);
virtual bool shouldDeleteRange(WebCore::Range* range);
virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange,
WebCore::Range* toRange,
WebCore::EAffinity affinity,
bool stillSelecting);
virtual bool shouldApplyStyle(WebCore::CSSStyleDeclaration* style,
WebCore::Range* range);
virtual bool shouldMoveRangeAfterDelete(WebCore::Range*, WebCore::Range*);
virtual void didBeginEditing();
virtual void respondToChangedContents();
virtual void respondToChangedSelection();
virtual void didEndEditing();
virtual void didWriteSelectionToPasteboard();
virtual void didSetSelectionTypesForPasteboard();
virtual void registerCommandForUndo(PassRefPtr<WebCore::EditCommand>);
virtual void registerCommandForRedo(PassRefPtr<WebCore::EditCommand>);
virtual void clearUndoRedoOperations();
virtual bool canUndo() const;
virtual bool canRedo() const;
virtual void undo();
virtual void redo();
virtual const char* interpretKeyEvent(const WebCore::KeyboardEvent*);
virtual bool handleEditingKeyboardEvent(WebCore::KeyboardEvent*);
virtual void handleKeyboardEvent(WebCore::KeyboardEvent*);
virtual void handleInputMethodKeydown(WebCore::KeyboardEvent*);
virtual void textFieldDidBeginEditing(WebCore::Element*);
virtual void textFieldDidEndEditing(WebCore::Element* element);
virtual void textDidChangeInTextField(WebCore::Element*);
virtual bool doTextFieldCommandFromEvent(WebCore::Element*,WebCore::KeyboardEvent*);
virtual void textWillBeDeletedInTextField(WebCore::Element*);
virtual void textDidChangeInTextArea(WebCore::Element*);
virtual void ignoreWordInSpellDocument(const WebCore::String&);
virtual void learnWord(const WebCore::String&);
virtual void checkSpellingOfString(const UChar*, int length,
int* misspellingLocation,
int* misspellingLength);
virtual void checkGrammarOfString(const UChar*, int length,
WTF::Vector<WebCore::GrammarDetail>&,
int* badGrammarLocation,
int* badGrammarLength);
virtual WebCore::String getAutoCorrectSuggestionForMisspelledWord(
const WebCore::String& misspelledWord);
virtual void updateSpellingUIWithGrammarString(const WebCore::String&,
const WebCore::GrammarDetail& detail);
virtual void updateSpellingUIWithMisspelledWord(const WebCore::String&);
virtual void showSpellingUI(bool show);
virtual bool spellingUIIsShowing();
virtual void getGuessesForWord(const WebCore::String&,
WTF::Vector<WebCore::String>& guesses);
virtual void setInputMethodState(bool enabled);
// Shows the form autofill popup for |node| if it is an HTMLInputElement and
// it is empty. This is called when you press the up or down arrow in a
// text-field or when clicking an already focused text-field.
// Returns true if the autofill popup has been scheduled to be shown, false
// otherwise.
virtual bool ShowFormAutofillForNode(WebCore::Node* node);
// Notification that the text changed in |text_field| due to acceptance of
// a suggestion provided by an autofill popup. Having a separate callback
// in this case is a simple way to break the cycle that would otherwise occur
// if textDidChangeInTextField was called.
virtual void OnAutofillSuggestionAccepted(
WebCore::HTMLInputElement* text_field);
private:
void ModifySelection(WebCore::Frame* frame,
WebCore::KeyboardEvent* event);
// Triggers autofill for |input_element| if applicable. This can be form
// autofill (via a popup-menu) or password autofill depending on
// |input_element|. If |form_autofill_only| is true, password autofill is not
// triggered.
// |autofill_on_empty_value| indicates whether the autofill should be shown
// when the text-field is empty.
// If |requires_caret_at_end| is true, the autofill popup is only shown if the
// caret is located at the end of the entered text in |input_element|.
// Returns true if the autofill popup has been scheduled to be shown, false
// otherwise.
bool Autofill(WebCore::HTMLInputElement* input_element,
bool form_autofill_only,
bool autofill_on_empty_value,
bool requires_caret_at_end);
private:
// Called to process the autofill described by autofill_args_.
// This method is invoked asynchronously if the caret position is not
// reflecting the last text change yet, and we need it to decide whether or
// not to show the autofill popup.
void DoAutofill(WebCore::Timer<EditorClientImpl>*);
void CancelPendingAutofill();
// Returns whether or not the focused control needs spell-checking.
// Currently, this function just retrieves the focused node and determines
// whether or not it is a <textarea> element or an element whose
// contenteditable attribute is true.
// TODO(hbono): Bug 740540: This code just implements the default behavior
// proposed in this issue. We should also retrieve "spellcheck" attributes
// for text fields and create a flag to over-write the default behavior.
bool ShouldSpellcheckByDefault();
WebViewImpl* webview_;
bool in_redo_;
typedef Deque< RefPtr<WebCore::EditCommand> > EditCommandStack;
EditCommandStack undo_stack_;
EditCommandStack redo_stack_;
// Whether the last entered key was a backspace.
bool backspace_or_delete_pressed_;
// This flag is set to false if spell check for this editor is manually
// turned off. The default setting is SPELLCHECK_AUTOMATIC.
enum {
SPELLCHECK_AUTOMATIC,
SPELLCHECK_FORCED_ON,
SPELLCHECK_FORCED_OFF
};
int spell_check_this_field_status_;
// Used to delay autofill processing.
WebCore::Timer<EditorClientImpl> autofill_timer_;
struct AutofillArgs {
RefPtr<WebCore::HTMLInputElement> input_element;
bool autofill_form_only;
bool autofill_on_empty_value;
bool require_caret_at_end;
bool backspace_or_delete_pressed;
};
OwnPtr<AutofillArgs> autofill_args_;
};
#endif // WEBKIT_GLUE_EDITOR_CLIENT_IMPL_H__
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