Views: Draw Textfield selected text in gray when top-level Widget loses focus.

ui/views/controls/textfield/textfield.cc

 // Copyright (c) 2012 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.
 
 #include "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 #include <utility>
 
 #include "base/strings/utf_string_conversions.h"
@@ skipping 366 matching lines @@
   background_color_ = color;
   use_default_background_color_ = false;
   UpdateBackgroundColor();
 }
 
 void Textfield::UseDefaultBackgroundColor() {
   use_default_background_color_ = true;
   UpdateBackgroundColor();
 }
 
-SkColor Textfield::GetSelectionTextColor() const {
-  return use_default_selection_text_color_ ?
-      GetNativeTheme()->GetSystemColor(
-          ui::NativeTheme::kColorId_TextfieldSelectionColor) :
-      selection_text_color_;
-}
-
 void Textfield::SetSelectionTextColor(SkColor color) {
   selection_text_color_ = color;
   use_default_selection_text_color_ = false;
   GetRenderText()->set_selection_color(GetSelectionTextColor());
   SchedulePaint();
 }
 
 void Textfield::UseDefaultSelectionTextColor() {
   use_default_selection_text_color_ = true;
   GetRenderText()->set_selection_color(GetSelectionTextColor());
   SchedulePaint();
 }
 
 void Textfield::SetShadows(const gfx::ShadowValues& shadows) {
   GetRenderText()->set_shadows(shadows);
   SchedulePaint();
 }
 
-SkColor Textfield::GetSelectionBackgroundColor() const {
-  return use_default_selection_background_color_ ?
-      GetNativeTheme()->GetSystemColor(
-          ui::NativeTheme::kColorId_TextfieldSelectionBackgroundFocused) :
-      selection_background_color_;
-}
-
 void Textfield::SetSelectionBackgroundColor(SkColor color) {
   selection_background_color_ = color;
   use_default_selection_background_color_ = false;
-  GetRenderText()->set_selection_background_focused_color(
+  GetRenderText()->set_selection_background_color(
       GetSelectionBackgroundColor());
   SchedulePaint();
 }
 
 void Textfield::UseDefaultSelectionBackgroundColor() {
   use_default_selection_background_color_ = true;
-  GetRenderText()->set_selection_background_focused_color(
+  GetRenderText()->set_selection_background_color(
       GetSelectionBackgroundColor());
   SchedulePaint();
 }
 
 bool Textfield::GetCursorEnabled() const {
   return GetRenderText()->cursor_enabled();
 }
 
 void Textfield::SetCursorEnabled(bool enabled) {
   GetRenderText()->SetCursorEnabled(enabled);
@@ skipping 489 matching lines @@
     touch_selection_controller_->SelectionChanged();
 }
 
 void Textfield::OnEnabledChanged() {
   View::OnEnabledChanged();
   if (GetInputMethod())
     GetInputMethod()->OnTextInputTypeChanged(this);
   SchedulePaint();
 }
 
+void Textfield::ViewHierarchyChanged(
+    const ViewHierarchyChangedDetails& details) {
+  // Update the focus manager being listened to.
+  if (details.parent->Contains(this) && details.move_view == nullptr)
+    ObserveWidgetFocusChanges(GetFocusManager(), details.is_add);
+}
+
+void Textfield::NativeViewHierarchyChanged() {
+  ObserveWidgetFocusChanges(GetFocusManager(), true);
+}
+
 void Textfield::OnPaint(gfx::Canvas* canvas) {
   OnPaintBackground(canvas);
   PaintTextAndCursor(canvas);
   OnPaintBorder(canvas);
 }
 
 void Textfield::OnFocus() {
   GetRenderText()->set_focused(true);
   if (ShouldShowCursor())
     GetRenderText()->set_cursor_visible(true);
@@ skipping 32 matching lines @@
 
 gfx::Point Textfield::GetKeyboardContextMenuLocation() {
   return GetCaretBounds().bottom_right();
 }
 
 void Textfield::OnNativeThemeChanged(const ui::NativeTheme* theme) {
   gfx::RenderText* render_text = GetRenderText();
   render_text->SetColor(GetTextColor());
   UpdateBackgroundColor();
   render_text->set_cursor_color(GetTextColor());
-  render_text->set_selection_color(GetSelectionTextColor());
-  render_text->set_selection_background_focused_color(
-      GetSelectionBackgroundColor());
+  // TODO(patricialor): Does this actually work?
+  UpdateTextSelectionDrawState(this, GetFocusManager()->GetStoredFocusView(),
+      GetFocusManager()->GetFocusedView());
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Textfield, TextfieldModel::Delegate overrides:
 
 void Textfield::OnCompositionTextConfirmedOrCleared() {
   if (!skip_input_method_cancel_composition_)
     GetInputMethod()->CancelComposition(this);
 }
 
@@ skipping 72 matching lines @@
                                                   baseline_point);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Textfield, SelectionControllerDelegate overrides:
 
 bool Textfield::HasTextBeingDragged() const {
   return initiating_drag_;
 }
 
+SkColor Textfield::GetSelectionTextColor() const {
+  return use_default_selection_text_color_
+             ? GetNativeTheme()->GetSystemColor(
+                   ui::NativeTheme::kColorId_TextfieldSelectionColor)
+             : selection_text_color_;
+}
+
+SkColor Textfield::GetSelectionBackgroundColor() const {
+  return use_default_selection_background_color_
+             ? GetNativeTheme()->GetSystemColor(
+                   ui::NativeTheme::
+                       kColorId_TextfieldSelectionBackgroundFocused)
+             : selection_background_color_;
+}
+
+SkColor Textfield::GetSelectionBackgroundUnfocusedColor() const {
+  // TODO(patricialor): Put a proper colour here.
+  return SK_ColorBLUE;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Textfield, ui::TouchEditable overrides:
 
 void Textfield::SelectRect(const gfx::Point& start, const gfx::Point& end) {
   if (GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE)
     return;
 
   gfx::SelectionModel start_caret = GetRenderText()->FindCursorPosition(start);
   gfx::SelectionModel end_caret = GetRenderText()->FindCursorPosition(end);
   gfx::SelectionModel selection(
@@ skipping 734 matching lines @@
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   if (text_input_type_ != ui::TEXT_INPUT_TYPE_PASSWORD) {
     ui::ScopedClipboardWriter(ui::CLIPBOARD_TYPE_SELECTION)
         .WriteText(GetSelectedText());
     if (controller_)
       controller_->OnAfterCutOrCopy(ui::CLIPBOARD_TYPE_SELECTION);
   }
 #endif
 }
 
+void Textfield::OnWillChangeFocus(View* focused_before, View* focused_now) {
+  UpdateTextSelectionDrawState(this, focused_before, focused_now);
+  SchedulePaint();
+}
+
 void Textfield::UpdateBackgroundColor() {
   const SkColor color = GetBackgroundColor();
   if (ui::MaterialDesignController::IsSecondaryUiMaterial()) {
     set_background(Background::CreateBackgroundPainter(
         true, Painter::CreateSolidRoundRectPainter(
                   color, FocusableBorder::kCornerRadiusDp)));
   } else {
     set_background(Background::CreateSolidBackground(color));
   }
   // Disable subpixel rendering when the background color is transparent
@@ skipping 197 matching lines @@
 }
 
 void Textfield::OnCursorBlinkTimerFired() {
   DCHECK(ShouldBlinkCursor());
   gfx::RenderText* render_text = GetRenderText();
   render_text->set_cursor_visible(!render_text->cursor_visible());
   RepaintCursor();
 }
 
 }  // namespace views