Standardize IME callbacks for off-screen rendering (issue #1675)

tests/cefclient/browser/text_input_client_osr_mac.h

@@ -0,0 +1,77 @@
+// Copyright 2016 The Chromium Embedded Framework Authors. Portions copyright
+// 2013 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 CEF_TESTS_CEFCLIENT_BROWSER_OSR_TEXT_INPUT_CLIENT_OSR_MAC_H_
+#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_TEXT_INPUT_CLIENT_OSR_MAC_H_
+#pragma once
+
+#import <Cocoa/Cocoa.h>
+#include <vector>
+#include <string>
+
+#include "include/cef_browser.h"
+#include "include/cef_render_handler.h"
+
+// Implementation for the NSTextInputClient protocol used for enabling IME on
+// mac when window rendering is disabled.
+
+@interface CefTextInputClientOSRMac : NSObject<NSTextInputClient> {
+ @private
+
+  // The range of current marked text inside the whole content of the DOM node
+  // being edited.
+  NSRange markedRange_;
+
+  // The current composition character range and its bounds.
+  CefRange composition_range_;
+  std::vector<CefRect> composition_bounds_;
+
+  // Represents the input-method attributes supported by this object.
+  NSArray* validAttributesForMarkedText_;
+
+  // Indicates if we are currently handling a key down event.
+  BOOL handlingKeyDown_;
+
+  // Indicates if there is any marked text.
+  BOOL hasMarkedText_;
+
+  // Indicates whether there was any marked text prior to handling
+  // the current key event.
+  BOOL oldHasMarkedText_;
+
+  // Indicates if unmarkText is called or not when handling a keyboard
+  // event.
+  BOOL unmarkTextCalled_;
+
+  // The selected range, cached from a message sent by the renderer.
+  NSRange selectedRange_;
+
+  // Text to be inserted which was generated by handling a key down event.
+  std::string textToBeInserted_;
+
+  // Marked text which was generated by handling a key down event.
+  CefString markedText_;
+
+  // Underline information of the |markedText_|.
+  std::vector<CefCompositionUnderline> underlines_;
+
+  // Replacement range information received from |setMarkedText:|.
+  CefRange setMarkedTextReplacementRange_;
+
+  CefRefPtr<CefBrowser> browser_;
+}
+
+@property(nonatomic, readonly) NSRange selectedRange;
+@property(nonatomic) BOOL handlingKeyDown;
+
+- (id)initWithBrowser:(CefRefPtr<CefBrowser>)browser;
+- (void)HandleKeyEventBeforeTextInputClient:(NSEvent*)keyEvent;
+- (void)HandleKeyEventAfterTextInputClient:(CefKeyEvent)keyEvent;
+- (void)ChangeCompositionRange:(CefRange)range
+              character_bounds:(const CefRenderHandler::RectList&)bounds;
+- (void)cancelComposition;
+
+@end
+
+#endif  // CEF_TESTS_CEFCLIENT_BROWSER_OSR_TEXT_INPUT_CLIENT_OSR_MAC_H_