| // Copyright (c) 2010 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 "views/controls/native_control_gtk.h" |
| |
| #include <gtk/gtk.h> |
| |
| #include "base/logging.h" |
| #include "views/focus/focus_manager.h" |
| |
| namespace views { |
| |
| NativeControlGtk::NativeControlGtk() { |
| } |
| |
| NativeControlGtk::~NativeControlGtk() { |
| if (native_view()) |
| gtk_widget_destroy(native_view()); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // NativeControlGtk, View overrides: |
| |
| void NativeControlGtk::SetEnabled(bool enabled) { |
| if (IsEnabled() != enabled) { |
| View::SetEnabled(enabled); |
| if (native_view()) |
| gtk_widget_set_sensitive(native_view(), IsEnabled()); |
| } |
| } |
| |
| void NativeControlGtk::ViewHierarchyChanged(bool is_add, View* parent, |
| View* child) { |
| // Call the base class to hide the view if we're being removed. |
| NativeViewHost::ViewHierarchyChanged(is_add, parent, child); |
| |
| if (!is_add && child == this && native_view()) { |
| Detach(); |
| } else if (is_add && GetWidget() && !native_view()) { |
| // Create the widget when we're added to a valid Widget. Many |
| // controls need a parent widget to function properly. |
| CreateNativeControl(); |
| } |
| } |
| |
| void NativeControlGtk::VisibilityChanged(View* starting_from, bool is_visible) { |
| if (!is_visible) { |
| if (native_view()) { |
| // We destroy the child widget when we become invisible because of the |
| // performance cost of maintaining widgets that aren't currently needed. |
| Detach(); |
| // Make sure that Detach destroyed the widget. |
| DCHECK(!native_view()); |
| } |
| } else if (!native_view()) { |
| if (GetWidget()) |
| CreateNativeControl(); |
| } else { |
| // The view becomes visible after native control is created. |
| // Layout now. |
| Layout(); |
| } |
| } |
| |
| void NativeControlGtk::Focus() { |
| DCHECK(native_view()); |
| gtk_widget_grab_focus(native_view()); |
| |
| GetParent()->NotifyAccessibilityEvent(AccessibilityTypes::EVENT_FOCUS); |
| } |
| |
| void NativeControlGtk::NativeControlCreated(GtkWidget* native_control) { |
| Attach(native_control); |
| |
| // Update the newly created GtkWdigetwith any resident enabled state. |
| gtk_widget_set_sensitive(native_view(), IsEnabled()); |
| |
| // Listen for focus change event to update the FocusManager focused view. |
| g_signal_connect(native_control, "focus-in-event", |
| G_CALLBACK(CallFocusIn), this); |
| } |
| |
| // static |
| gboolean NativeControlGtk::CallFocusIn(GtkWidget* widget, |
| GdkEventFocus* event, |
| NativeControlGtk* control) { |
| FocusManager* focus_manager = |
| FocusManager::GetFocusManagerForNativeView(widget); |
| if (!focus_manager) { |
| // TODO(jcampan): http://crbug.com/21378 Reenable this NOTREACHED() when the |
| // options page is only based on views. |
| // NOTREACHED(); |
| NOTIMPLEMENTED(); |
| return false; |
| } |
| focus_manager->SetFocusedView(control->focus_view()); |
| return false; |
| } |
| |
| } // namespace views |