MacViews: Implement move and move*AndModifySelection commands.

ui/views/cocoa/bridged_content_view.mm

 // Copyright 2014 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.
 
 #import "ui/views/cocoa/bridged_content_view.h"
 
 #include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 631 matching lines @@
 // is active. Note that NSResponder's interpretKeyEvents: implementation doesn't
 // direct insertText: through doCommandBySelector:, so this is still needed to
 // handle the case when inputContext: is nil. When inputContext: returns non-nil
 // text goes directly to insertText:replacementRange:.
 - (void)insertText:(id)text {
   [self insertText:text replacementRange:NSMakeRange(NSNotFound, 0)];
 }
 
 // Selection movement and scrolling.
 
+- (void)moveForward:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveLeft:sender]

[karandeepb, 2016/05/16 00:11:08]

I think that I should add a GetTextDirection() public method to TextInputClient
in a follow-up, since Textfield caches the directionality and hence this won't
need to be recomputed. Also TextInputClient already allows setting
directionality via ChangeTextDirectionAndLayoutAlignment. Thoughts?

+                              : [self moveRight:sender];
+}
+
 - (void)moveRight:(id)sender {
   [self handleAction:IDS_MOVE_RIGHT
              keyCode:ui::VKEY_RIGHT
              domCode:ui::DomCode::ARROW_RIGHT
           eventFlags:0];
 }
 
+- (void)moveBackward:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveRight:sender]
+                              : [self moveLeft:sender];
+}
+
 - (void)moveLeft:(id)sender {
   [self handleAction:IDS_MOVE_LEFT
              keyCode:ui::VKEY_LEFT
              domCode:ui::DomCode::ARROW_LEFT
           eventFlags:0];
 }
 
+// Todo ask if should use IDS_MOVE_UP.
 - (void)moveUp:(id)sender {

[karandeepb, 2016/05/16 00:11:08]

Should I use the command IDS_MOVE_UP and only enable it for MacViews or is this
ok?

-  [self handleAction:0
+  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE
              keyCode:ui::VKEY_UP
              domCode:ui::DomCode::ARROW_UP
           eventFlags:0];
 }
 
 - (void)moveDown:(id)sender {
-  [self handleAction:0
+  [self handleAction:IDS_MOVE_TO_END_OF_LINE
              keyCode:ui::VKEY_DOWN
              domCode:ui::DomCode::ARROW_DOWN
           eventFlags:0];
 }
 
+- (void)moveWordForward:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveWordLeft:sender]
+                              : [self moveWordRight:sender];
+}
+
+- (void)moveWordBackward:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveWordRight:sender]
+                              : [self moveWordLeft:sender];
+}
+
+- (void)moveToBeginningOfLine:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE
+             keyCode:ui::VKEY_HOME
+             domCode:ui::DomCode::HOME
+          eventFlags:0];
+}
+
+- (void)moveToEndOfLine:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_END_OF_LINE
+             keyCode:ui::VKEY_END
+             domCode:ui::DomCode::END
+          eventFlags:0];
+}
+
+- (void)moveToBeginningOfParagraph:(nullable id)sender {
+  [self moveToBeginningOfLine:sender];
+}
+
+- (void)moveToEndOfParagraph:(nullable id)sender {
+  [self moveToEndOfLine:sender];
+}
+
+- (void)moveToEndOfDocument:(nullable id)sender {
+  [self moveToEndOfLine:sender];
+}
+
+- (void)moveToBeginningOfDocument:(nullable id)sender {
+  [self moveToBeginningOfLine:sender];
+}
+
+- (void)pageDown:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_END_OF_LINE
+             keyCode:ui::VKEY_NEXT
+             domCode:ui::DomCode::PAGE_DOWN
+          eventFlags:0];
+}
+
+- (void)pageUp:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE
+             keyCode:ui::VKEY_PRIOR
+             domCode:ui::DomCode::PAGE_UP
+          eventFlags:0];
+}
+
+- (void)moveBackwardAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveRightAndModifySelection:sender]
+                              : [self moveLeftAndModifySelection:sender];
+}
+
+- (void)moveForwardAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveLeftAndModifySelection:sender]
+                              : [self moveRightAndModifySelection:sender];
+}
+
+- (void)moveWordForwardAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveWordLeftAndModifySelection:sender]
+                              : [self moveWordRightAndModifySelection:sender];
+}
+
+- (void)moveWordBackwardAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveWordRightAndModifySelection:sender]
+                              : [self moveWordLeftAndModifySelection:sender];
+}
+
+- (void)moveUpAndModifySelection:(nullable id)sender {
+  [self moveToBeginningOfLineAndModifySelection:sender];
+}
+
+- (void)moveDownAndModifySelection:(nullable id)sender {
+  [self moveToEndOfLineAndModifySelection:sender];
+}
+
+- (void)moveToBeginningOfLineAndModifySelection:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE_AND_MODIFY_SELECTION
+             keyCode:ui::VKEY_HOME
+             domCode:ui::DomCode::HOME
+          eventFlags:ui::EF_SHIFT_DOWN];
+}
+
+- (void)moveToEndOfLineAndModifySelection:(nullable id)sender {
+  [self handleAction:IDS_MOVE_TO_END_OF_LINE_AND_MODIFY_SELECTION
+             keyCode:ui::VKEY_END
+             domCode:ui::DomCode::END
+          eventFlags:ui::EF_SHIFT_DOWN];
+}
+
+- (void)moveToBeginningOfParagraphAndModifySelection:(nullable id)sender {
+  [self moveToBeginningOfLineAndModifySelection:sender];
+}
+
+- (void)moveToEndOfParagraphAndModifySelection:(nullable id)sender {
+  [self moveToEndOfLineAndModifySelection:sender];
+}
+
+- (void)moveToEndOfDocumentAndModifySelection:(nullable id)sender {
+  [self moveToEndOfLineAndModifySelection:sender];
+}
+
+- (void)moveToBeginningOfDocumentAndModifySelection:(nullable id)sender {
+  [self moveToBeginningOfLineAndModifySelection:sender];
+}
+
+// Not sure if keycodes are to be added, can use
+// https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/core/editing/EditingBehavior.cpp
+- (void)pageDownAndModifySelection:(nullable id)sender {
+  [self moveToEndOfLineAndModifySelection:sender];
+}
+
+- (void)pageUpAndModifySelection:(nullable id)sender {
+  [self moveToBeginningOfLineAndModifySelection:sender];
+}
+
+- (void)moveParagraphForwardAndModifySelection:(nullable id)sender {
+  [self moveToEndOfLineAndModifySelection:sender];
+}
+
+- (void)moveParagraphBackwardAndModifySelection:(nullable id)sender {
+  [self moveToBeginningOfLineAndModifySelection:sender];
+}
+
 - (void)moveWordRight:(id)sender {
   [self handleAction:IDS_MOVE_WORD_RIGHT
              keyCode:ui::VKEY_RIGHT
              domCode:ui::DomCode::ARROW_RIGHT
           eventFlags:ui::EF_CONTROL_DOWN];
 }
 
-- (void)moveWordLeft:(id)sender {
+- (void)moveWordLeft:(nullable id)sender {
   [self handleAction:IDS_MOVE_WORD_LEFT
              keyCode:ui::VKEY_LEFT
              domCode:ui::DomCode::ARROW_LEFT
           eventFlags:ui::EF_CONTROL_DOWN];
 }
 
-- (void)moveLeftAndModifySelection:(id)sender {
+- (void)moveRightAndModifySelection:(nullable id)sender {
+  [self handleAction:IDS_MOVE_RIGHT_AND_MODIFY_SELECTION
+             keyCode:ui::VKEY_RIGHT
+             domCode:ui::DomCode::ARROW_RIGHT
+          eventFlags:ui::EF_SHIFT_DOWN];
+}
+
+- (void)moveLeftAndModifySelection:(nullable id)sender {
   [self handleAction:IDS_MOVE_LEFT_AND_MODIFY_SELECTION
              keyCode:ui::VKEY_LEFT
              domCode:ui::DomCode::ARROW_LEFT
           eventFlags:ui::EF_SHIFT_DOWN];
 }
 
-- (void)moveRightAndModifySelection:(id)sender {
-  [self handleAction:IDS_MOVE_RIGHT_AND_MODIFY_SELECTION
-             keyCode:ui::VKEY_RIGHT
-             domCode:ui::DomCode::ARROW_RIGHT
-          eventFlags:ui::EF_SHIFT_DOWN];
-}
-
-- (void)moveWordRightAndModifySelection:(id)sender {
+- (void)moveWordRightAndModifySelection:(nullable id)sender {
   [self handleAction:IDS_MOVE_WORD_RIGHT_AND_MODIFY_SELECTION
              keyCode:ui::VKEY_RIGHT
              domCode:ui::DomCode::ARROW_RIGHT
           eventFlags:ui::EF_CONTROL_DOWN | ui::EF_SHIFT_DOWN];
 }
 
-- (void)moveWordLeftAndModifySelection:(id)sender {
+- (void)moveWordLeftAndModifySelection:(nullable id)sender {
   [self handleAction:IDS_MOVE_WORD_LEFT_AND_MODIFY_SELECTION
              keyCode:ui::VKEY_LEFT
              domCode:ui::DomCode::ARROW_LEFT
           eventFlags:ui::EF_CONTROL_DOWN | ui::EF_SHIFT_DOWN];
 }
 
-- (void)moveToLeftEndOfLine:(id)sender {
-  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE
-             keyCode:ui::VKEY_HOME
-             domCode:ui::DomCode::HOME
-          eventFlags:0];
+- (void)moveToLeftEndOfLine:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveToEndOfLine:sender]
+                              : [self moveToBeginningOfLine:sender];
 }
 
-- (void)moveToRightEndOfLine:(id)sender {
-  [self handleAction:IDS_MOVE_TO_END_OF_LINE
-             keyCode:ui::VKEY_END
-             domCode:ui::DomCode::END
-          eventFlags:0];
+- (void)moveToRightEndOfLine:(nullable id)sender {
+  IsTextRTL(textInputClient_) ? [self moveToBeginningOfLine:sender]
+                              : [self moveToEndOfLine:sender];
 }
 
-- (void)moveToLeftEndOfLineAndModifySelection:(id)sender {
-  [self handleAction:IDS_MOVE_TO_BEGINNING_OF_LINE_AND_MODIFY_SELECTION
-             keyCode:ui::VKEY_HOME
-             domCode:ui::DomCode::HOME
-          eventFlags:ui::EF_SHIFT_DOWN];
+- (void)moveToLeftEndOfLineAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_)
+      ? [self moveToEndOfLineAndModifySelection:sender]
+      : [self moveToBeginningOfLineAndModifySelection:sender];
 }
 
-- (void)moveToRightEndOfLineAndModifySelection:(id)sender {
-  [self handleAction:IDS_MOVE_TO_END_OF_LINE_AND_MODIFY_SELECTION
-             keyCode:ui::VKEY_END
-             domCode:ui::DomCode::END
-          eventFlags:ui::EF_SHIFT_DOWN];
+- (void)moveToRightEndOfLineAndModifySelection:(nullable id)sender {
+  IsTextRTL(textInputClient_)
+      ? [self moveToBeginningOfLineAndModifySelection:sender]
+      : [self moveToEndOfLineAndModifySelection:sender];
 }
 
 // Deletions.
 
 - (void)deleteForward:(id)sender {
   [self handleAction:IDS_DELETE_FORWARD
              keyCode:ui::VKEY_DELETE
              domCode:ui::DomCode::DEL
           eventFlags:0];
 }
@@ skipping 265 matching lines @@
   }
 
   return [super accessibilityAttributeValue:attribute];
 }
 
 - (id)accessibilityHitTest:(NSPoint)point {
   return [hostedView_->GetNativeViewAccessible() accessibilityHitTest:point];
 }
 
 @end