contrib/tweaks/shortcuts/macos-hotkeys-on-linux.patch

# Provides an experiance closer to macOS in Linux for shortcut keys
diff --git a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
index 4995b3c75c44..a4014f0482c5 100644
--- a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
+++ b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
@@ -140,39 +140,39 @@ bool RenderViewContextMenuViews::GetAcceleratorForCommandId(
       return true;
 
     case IDC_CONTENT_CONTEXT_UNDO:
-      *accel = ui::Accelerator(ui::VKEY_Z, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_Z, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_REDO:
       // TODO(jcampan): should it be Ctrl-Y?
       *accel = ui::Accelerator(ui::VKEY_Z,
-                               ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN);
+                               ui::EF_SHIFT_DOWN | ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_CUT:
-      *accel = ui::Accelerator(ui::VKEY_X, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_X, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_COPY:
-      *accel = ui::Accelerator(ui::VKEY_C, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_C, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_INSPECTELEMENT:
       *accel = ui::Accelerator(ui::VKEY_I,
-                               ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN);
+                               ui::EF_SHIFT_DOWN | ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_PASTE:
-      *accel = ui::Accelerator(ui::VKEY_V, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_V, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_PASTE_AND_MATCH_STYLE:
       *accel = ui::Accelerator(ui::VKEY_V,
-                               ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN);
+                               ui::EF_SHIFT_DOWN | ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_SELECTALL:
-      *accel = ui::Accelerator(ui::VKEY_A, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_A, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_ROTATECCW:
@@ -188,16 +188,16 @@ bool RenderViewContextMenuViews::GetAcceleratorForCommandId(
       return true;
 
     case IDC_PRINT:
-      *accel = ui::Accelerator(ui::VKEY_P, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_P, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_RELOAD:
-      *accel = ui::Accelerator(ui::VKEY_R, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_R, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_SAVEAVAS:
     case IDC_SAVE_PAGE:
-      *accel = ui::Accelerator(ui::VKEY_S, ui::EF_CONTROL_DOWN);
+      *accel = ui::Accelerator(ui::VKEY_S, ui::EF_PLATFORM_ACCELERATOR);
       return true;
 
     case IDC_CONTENT_CONTEXT_EXIT_FULLSCREEN: {
diff --git a/chrome/common/extensions/command.cc b/chrome/common/extensions/command.cc
index 4732019d473a..aa07642f4070 100644
--- a/chrome/common/extensions/command.cc
+++ b/chrome/common/extensions/command.cc
@@ -103,7 +103,7 @@ ui::Accelerator ParseImpl(const std::string& accelerator,
         // Mac the developer has to specify MacCtrl). Therefore we treat this
         // as Command.
         modifiers |= ui::EF_COMMAND_DOWN;
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
       } else if (platform_key == values::kKeybindingPlatformDefault) {
         // If we see "Command+foo" in the Default section it can mean two
         // things, depending on the platform:
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index d59a7ed97051..c40238bf113c 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -1503,7 +1503,7 @@ void PepperPluginInstanceImpl::SelectAll() {
 
   // TODO(https://crbug.com/836074) |kPlatformModifier| should be
   // |ui::EF_PLATFORM_ACCELERATOR| (|ui::EF_COMMAND_DOWN| on Mac).
-  static const ui::EventFlags kPlatformModifier = ui::EF_CONTROL_DOWN;
+  static const ui::EventFlags kPlatformModifier = ui::EF_COMMAND_DOWN;
   // Synthesize a ctrl + a key event to send to the plugin and let it sort out
   // the event. See also https://crbug.com/739529.
   ui::KeyEvent char_event(L'A', ui::VKEY_A, ui::DomCode::NONE,
diff --git a/third_party/blink/renderer/core/editing/editing_behavior.cc b/third_party/blink/renderer/core/editing/editing_behavior.cc
index e3585bdb1eac..cdd1bb8c475e 100644
--- a/third_party/blink/renderer/core/editing/editing_behavior.cc
+++ b/third_party/blink/renderer/core/editing/editing_behavior.cc
@@ -45,7 +45,7 @@ const unsigned kCtrlKey = WebInputEvent::kControlKey;
 const unsigned kAltKey = WebInputEvent::kAltKey;
 const unsigned kShiftKey = WebInputEvent::kShiftKey;
 const unsigned kMetaKey = WebInputEvent::kMetaKey;
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
 // Aliases for the generic key defintions to make kbd shortcuts definitions more
 // readable on OS X.
 const unsigned kOptionKey = kAltKey;
@@ -88,7 +88,7 @@ struct DomKeyKeyDownEntry {
 const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
     {VKEY_LEFT, 0, "MoveLeft"},
     {VKEY_LEFT, kShiftKey, "MoveLeftAndModifySelection"},
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
     {VKEY_LEFT, kOptionKey, "MoveWordLeft"},
     {VKEY_LEFT, kOptionKey | kShiftKey, "MoveWordLeftAndModifySelection"},
 #else
@@ -97,7 +97,7 @@ const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
 #endif
     {VKEY_RIGHT, 0, "MoveRight"},
     {VKEY_RIGHT, kShiftKey, "MoveRightAndModifySelection"},
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
     {VKEY_RIGHT, kOptionKey, "MoveWordRight"},
     {VKEY_RIGHT, kOptionKey | kShiftKey, "MoveWordRightAndModifySelection"},
 #else
@@ -110,7 +110,7 @@ const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
     {VKEY_DOWN, 0, "MoveDown"},
     {VKEY_DOWN, kShiftKey, "MoveDownAndModifySelection"},
     {VKEY_NEXT, kShiftKey, "MovePageDownAndModifySelection"},
-#if !defined(OS_MAC)
+#if !defined(OS_MAC) && !defined(OS_LINUX)
     {VKEY_UP, kCtrlKey, "MoveParagraphBackward"},
     {VKEY_UP, kCtrlKey | kShiftKey, "MoveParagraphBackwardAndModifySelection"},
     {VKEY_DOWN, kCtrlKey, "MoveParagraphForward"},
@@ -120,18 +120,18 @@ const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
 #endif
     {VKEY_HOME, 0, "MoveToBeginningOfLine"},
     {VKEY_HOME, kShiftKey, "MoveToBeginningOfLineAndModifySelection"},
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
     {VKEY_PRIOR, kOptionKey, "MovePageUp"},
     {VKEY_NEXT, kOptionKey, "MovePageDown"},
 #endif
-#if !defined(OS_MAC)
+#if !defined(OS_MAC) && !defined(OS_LINUX)
     {VKEY_HOME, kCtrlKey, "MoveToBeginningOfDocument"},
     {VKEY_HOME, kCtrlKey | kShiftKey,
      "MoveToBeginningOfDocumentAndModifySelection"},
 #endif
     {VKEY_END, 0, "MoveToEndOfLine"},
     {VKEY_END, kShiftKey, "MoveToEndOfLineAndModifySelection"},
-#if !defined(OS_MAC)
+#if !defined(OS_MAC) && !defined(OS_LINUX)
     {VKEY_END, kCtrlKey, "MoveToEndOfDocument"},
     {VKEY_END, kCtrlKey | kShiftKey, "MoveToEndOfDocumentAndModifySelection"},
 #endif
@@ -145,7 +145,7 @@ const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
     {VKEY_BACK, kCtrlKey, "DeleteWordBackward"},
     {VKEY_DELETE, kCtrlKey, "DeleteWordForward"},
 #endif
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
     {'B', kCommandKey, "ToggleBold"},
     {'I', kCommandKey, "ToggleItalic"},
 #else
@@ -168,14 +168,14 @@ const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = {
 #if !defined(OS_MAC)
     // On OS X, we pipe these back to the browser, so that it can do menu item
     // blinking.
-    {'C', kCtrlKey, "Copy"},
-    {'V', kCtrlKey, "Paste"},
-    {'V', kCtrlKey | kShiftKey, "PasteAndMatchStyle"},
-    {'X', kCtrlKey, "Cut"},
-    {'A', kCtrlKey, "SelectAll"},
-    {'Z', kCtrlKey, "Undo"},
-    {'Z', kCtrlKey | kShiftKey, "Redo"},
-    {'Y', kCtrlKey, "Redo"},
+    {'C', kCommandKey, "Copy"},
+    {'V', kCommandKey, "Paste"},
+    {'V', kCommandKey | kShiftKey, "PasteAndMatchStyle"},
+    {'X', kCommandKey, "Cut"},
+    {'A', kCommandKey, "SelectAll"},
+    {'Z', kCommandKey, "Undo"},
+    {'Z', kCommandKey | kShiftKey, "Redo"},
+    {'Y', kCommandKey, "Redo"},
 #endif
 #if defined(OS_WIN)
     {VKEY_BACK, kAltKey, "Undo"},
@@ -274,19 +274,19 @@ bool EditingBehavior::ShouldInsertCharacter(const KeyboardEvent& event) const {
   // unexpected behaviour
   if (ch < ' ')
     return false;
-#if defined(OS_LINUX) || defined(OS_CHROMEOS)
+//#if defined(OS_LINUX) || defined(OS_CHROMEOS)
   // According to XKB map no keyboard combinations with ctrl key are mapped to
   // printable characters, however we need the filter as the DomKey/text could
   // contain printable characters.
-  if (event.ctrlKey())
-    return false;
-#elif !defined(OS_WIN)
+  //if (event.ctrlKey())
+    //return false;
+#if !defined(OS_WIN)
   // Don't insert ASCII character if ctrl w/o alt or meta is on.
   // On Mac, we should ignore events when meta is on (Command-<x>).
   if (ch < 0x80) {
     if (event.ctrlKey() && !event.altKey())
       return false;
-#if defined(OS_MAC)
+#if defined(OS_MAC) || defined(OS_LINUX)
     if (event.metaKey())
       return false;
 #endif
diff --git a/ui/base/accelerators/accelerator.cc b/ui/base/accelerators/accelerator.cc
index 627e077480fe..e35db380b877 100644
--- a/ui/base/accelerators/accelerator.cc
+++ b/ui/base/accelerators/accelerator.cc
@@ -414,7 +414,7 @@ base::string16 Accelerator::ApplyLongFormModifiers(
     shortcut = ApplyModifierToAcceleratorString(shortcut, IDS_APP_ALT_KEY);
 
   if (IsCmdDown()) {
-#if defined(OS_APPLE)
+#if defined(OS_APPLE) || defined(OS_LINUX)
     shortcut = ApplyModifierToAcceleratorString(shortcut, IDS_APP_COMMAND_KEY);
 #elif defined(OS_CHROMEOS)
     shortcut = ApplyModifierToAcceleratorString(shortcut, IDS_APP_SEARCH_KEY);
diff --git a/ui/base/window_open_disposition.cc b/ui/base/window_open_disposition.cc
index d90ce70031fc..32dfebc127ac 100644
--- a/ui/base/window_open_disposition.cc
+++ b/ui/base/window_open_disposition.cc
@@ -17,7 +17,7 @@ WindowOpenDisposition DispositionFromClick(
     bool shift_key,
     WindowOpenDisposition disposition_for_current_tab) {
   // MacOS uses meta key (Command key) to spawn new tabs.
-#if defined(OS_APPLE)
+#if defined(OS_APPLE) || defined(OS_LINUX)
   if (middle_button || meta_key)
 #else
   if (middle_button || ctrl_key)
diff --git a/ui/events/base_event_utils.cc b/ui/events/base_event_utils.cc
index f5c709d2e650..61230220818d 100644
--- a/ui/events/base_event_utils.cc
+++ b/ui/events/base_event_utils.cc
@@ -22,6 +22,8 @@ const int kSystemKeyModifierMask = EF_ALT_DOWN | EF_COMMAND_DOWN;
 #elif defined(OS_APPLE)
 // Alt modifier is used to input extended characters on Mac.
 const int kSystemKeyModifierMask = EF_COMMAND_DOWN;
+#elif defined(OS_LINUX)
+const int kSystemKeyModifierMask = EF_COMMAND_DOWN;
 #else
 const int kSystemKeyModifierMask = EF_ALT_DOWN;
 #endif  // !defined(OS_CHROMEOS) && !defined(OS_APPLE)
diff --git a/ui/events/event_constants.h b/ui/events/event_constants.h
index 0b60cb443edc..f8da4fa50dd0 100644
--- a/ui/events/event_constants.h
+++ b/ui/events/event_constants.h
@@ -47,7 +47,9 @@ enum EventFlags {
 #if defined(OS_APPLE)
   EF_PLATFORM_ACCELERATOR = EF_COMMAND_DOWN,
 #else
-  EF_PLATFORM_ACCELERATOR = EF_CONTROL_DOWN,
+  // TODO(hparadiz): Build Configurable EF_PLATFORM_ACCELERATOR from chrome://flags
+  EF_PLATFORM_ACCELERATOR = EF_COMMAND_DOWN,
+  //EF_PLATFORM_ACCELERATOR = EF_CONTROL_DOWN,
 #endif
 };
 
diff --git a/ui/views/controls/textfield/textfield.cc b/ui/views/controls/textfield/textfield.cc
index 31ad40b5fe99..c22e138a91b7 100644
--- a/ui/views/controls/textfield/textfield.cc
+++ b/ui/views/controls/textfield/textfield.cc
@@ -127,46 +127,47 @@ ui::TextEditCommand GetCommandForKeyEvent(const ui::KeyEvent& event) {
   const bool shift = event.IsShiftDown();
   const bool control = event.IsControlDown() || event.IsCommandDown();
   const bool alt = event.IsAltDown() || event.IsAltGrDown();
+  const bool command = event.IsCommandDown();
   switch (event.key_code()) {
     case ui::VKEY_Z:
       if (control && !shift && !alt)
         return ui::TextEditCommand::UNDO;
-      return (control && shift && !alt) ? ui::TextEditCommand::REDO
+      return (command && shift && !alt) ? ui::TextEditCommand::REDO
                                         : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_Y:
-      return (control && !alt) ? ui::TextEditCommand::REDO
+      return (command && !alt) ? ui::TextEditCommand::REDO
                                : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_A:
-      return (control && !alt) ? ui::TextEditCommand::SELECT_ALL
+      return (command && !alt) ? ui::TextEditCommand::SELECT_ALL
                                : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_X:
-      return (control && !alt) ? ui::TextEditCommand::CUT
+      return (command && !alt) ? ui::TextEditCommand::CUT
                                : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_C:
-      return (control && !alt) ? ui::TextEditCommand::COPY
+      return (command && !alt) ? ui::TextEditCommand::COPY
                                : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_V:
-      return (control && !alt) ? ui::TextEditCommand::PASTE
+      return (command && !alt) ? ui::TextEditCommand::PASTE
                                : ui::TextEditCommand::INVALID_COMMAND;
     case ui::VKEY_RIGHT:
       // Ignore alt+right, which may be a browser navigation shortcut.
       if (alt)
         return ui::TextEditCommand::INVALID_COMMAND;
       if (!shift) {
-        return control ? ui::TextEditCommand::MOVE_WORD_RIGHT
+        return command ? ui::TextEditCommand::MOVE_WORD_RIGHT
                        : ui::TextEditCommand::MOVE_RIGHT;
       }
-      return control ? ui::TextEditCommand::MOVE_WORD_RIGHT_AND_MODIFY_SELECTION
+      return command ? ui::TextEditCommand::MOVE_WORD_RIGHT_AND_MODIFY_SELECTION
                      : ui::TextEditCommand::MOVE_RIGHT_AND_MODIFY_SELECTION;
     case ui::VKEY_LEFT:
       // Ignore alt+left, which may be a browser navigation shortcut.
       if (alt)
         return ui::TextEditCommand::INVALID_COMMAND;
       if (!shift) {
-        return control ? ui::TextEditCommand::MOVE_WORD_LEFT
+        return command ? ui::TextEditCommand::MOVE_WORD_LEFT
                        : ui::TextEditCommand::MOVE_LEFT;
       }
-      return control ? ui::TextEditCommand::MOVE_WORD_LEFT_AND_MODIFY_SELECTION
+      return command ? ui::TextEditCommand::MOVE_WORD_LEFT_AND_MODIFY_SELECTION
                      : ui::TextEditCommand::MOVE_LEFT_AND_MODIFY_SELECTION;
     case ui::VKEY_HOME:
       return shift ? ui::TextEditCommand::
@@ -204,12 +205,12 @@ ui::TextEditCommand GetCommandForKeyEvent(const ui::KeyEvent& event) {
       if (shift && control)
         return ui::TextEditCommand::DELETE_TO_END_OF_LINE;
 #endif
-      if (control)
+      if (command)
         return ui::TextEditCommand::DELETE_WORD_FORWARD;
       return shift ? ui::TextEditCommand::CUT
                    : ui::TextEditCommand::DELETE_FORWARD;
     case ui::VKEY_INSERT:
-      if (control && !shift)
+      if (command && !shift)
         return ui::TextEditCommand::COPY;
       return (shift && !control) ? ui::TextEditCommand::PASTE
                                  : ui::TextEditCommand::INVALID_COMMAND;
@@ -351,9 +352,9 @@ Textfield::Textfield()
   // These allow BrowserView to pass edit commands from the Chrome menu to us
   // when we're focused by simply asking the FocusManager to
   // ProcessAccelerator() with the relevant accelerators.
-  AddAccelerator(ui::Accelerator(ui::VKEY_X, ui::EF_CONTROL_DOWN));
-  AddAccelerator(ui::Accelerator(ui::VKEY_C, ui::EF_CONTROL_DOWN));
-  AddAccelerator(ui::Accelerator(ui::VKEY_V, ui::EF_CONTROL_DOWN));
+  AddAccelerator(ui::Accelerator(ui::VKEY_X, ui::EF_PLATFORM_ACCELERATOR));
+  AddAccelerator(ui::Accelerator(ui::VKEY_C, ui::EF_PLATFORM_ACCELERATOR));
+  AddAccelerator(ui::Accelerator(ui::VKEY_V, ui::EF_PLATFORM_ACCELERATOR));
 #endif
 
   // Sometimes there are additional ignored views, such as the View representing