[InputEvent] Support |deleteByDrag|, |insertFromDrop| and fire in sequential order

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
index 25acb328504464c1ea1f1dd7ea270a5ad58c23d0..7dc52d43d4c4221f51832f85949df02bbf5b34b9 100644
--- a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp
@@ -150,6 +150,11 @@ void EditCommandComposition::append(SimpleEditCommand* command)
     m_commands.append(command);
 }
 
+void EditCommandComposition::append(EditCommandComposition* composition)
+{
+    m_commands.appendVector(composition->m_commands);
+}
+
 void EditCommandComposition::setStartingSelection(const VisibleSelection& selection)
 {
     m_startingSelection = selection;
@@ -191,6 +196,7 @@ bool CompositeEditCommand::apply()
         case InputEvent::InputType::InsertLineBreak:
         case InputEvent::InputType::InsertParagraph:
         case InputEvent::InputType::InsertFromPaste:
+        case InputEvent::InputType::InsertFromDrop:
         case InputEvent::InputType::DeleteComposedCharacterForward:
         case InputEvent::InputType::DeleteComposedCharacterBackward:
         case InputEvent::InputType::DeleteWordBackward:
@@ -200,7 +206,7 @@ bool CompositeEditCommand::apply()
         case InputEvent::InputType::DeleteContentBackward:
         case InputEvent::InputType::DeleteContentForward:
         case InputEvent::InputType::DeleteByCut:
-        case InputEvent::InputType::Drag:
+        case InputEvent::InputType::DeleteByDrag:
         case InputEvent::InputType::SetWritingDirection:
         case InputEvent::InputType::None:
             break;
@@ -291,6 +297,13 @@ void CompositeEditCommand::applyCommandToComposite(CompositeEditCommand* command
         m_commands.append(command);
 }
 
+void CompositeEditCommand::appendCommandToComposite(CompositeEditCommand* command)

[yosin_UTC9, 2016/09/28 04:19:03]

Good invention!
We can implement Undo/Redo for drag-and-drop as easy as others.
(^_^)b

[chongz, 2016/09/29 02:36:22]

Thanks! :>

+{
+    ensureComposition()->append(command->ensureComposition());
+    command->setParent(this);
+    m_commands.append(command);
+}
+
 void CompositeEditCommand::applyStyle(const EditingStyle* style, EditingState* editingState)
 {
     applyCommandToComposite(ApplyStyleCommand::create(document(), style, InputEvent::InputType::ChangeAttributes), editingState);