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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "views/controls/native_control_gtk.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "ui/base/accessibility/accessibility_types.h" | |
| 11 #include "ui/views/focus/focus_manager.h" | |
| 12 #include "ui/views/widget/widget.h" | |
| 13 | |
| 14 namespace views { | |
| 15 | |
| 16 NativeControlGtk::NativeControlGtk() { | |
| 17 } | |
| 18 | |
| 19 NativeControlGtk::~NativeControlGtk() { | |
| 20 if (native_view()) | |
| 21 gtk_widget_destroy(native_view()); | |
| 22 } | |
| 23 | |
| 24 //////////////////////////////////////////////////////////////////////////////// | |
| 25 // NativeControlGtk, View overrides: | |
| 26 | |
| 27 void NativeControlGtk::OnEnabledChanged() { | |
| 28 View::OnEnabledChanged(); | |
| 29 if (native_view()) | |
| 30 gtk_widget_set_sensitive(native_view(), IsEnabled()); | |
| 31 } | |
| 32 | |
| 33 void NativeControlGtk::ViewHierarchyChanged(bool is_add, View* parent, | |
| 34 View* child) { | |
| 35 // Call the base class to hide the view if we're being removed. | |
| 36 NativeViewHost::ViewHierarchyChanged(is_add, parent, child); | |
| 37 | |
| 38 if (!is_add && child == this && native_view()) { | |
| 39 Detach(); | |
| 40 } else if (is_add && GetWidget() && !native_view()) { | |
| 41 // Create the widget when we're added to a valid Widget. Many | |
| 42 // controls need a parent widget to function properly. | |
| 43 CreateNativeControl(); | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 void NativeControlGtk::VisibilityChanged(View* starting_from, bool is_visible) { | |
| 48 if (!native_view()) { | |
| 49 if (GetWidget()) | |
| 50 CreateNativeControl(); | |
| 51 } else { | |
| 52 // The view becomes visible after native control is created. | |
| 53 // Layout now. | |
| 54 Layout(); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 void NativeControlGtk::OnFocus() { | |
| 59 DCHECK(native_view()); | |
| 60 gtk_widget_grab_focus(native_view()); | |
| 61 GetWidget()->NotifyAccessibilityEvent( | |
| 62 parent(), ui::AccessibilityTypes::EVENT_FOCUS, true); | |
| 63 } | |
| 64 | |
| 65 void NativeControlGtk::NativeControlCreated(GtkWidget* native_control) { | |
| 66 Attach(native_control); | |
| 67 | |
| 68 // Update the newly created GtkWidget with any resident enabled state. | |
| 69 gtk_widget_set_sensitive(native_view(), IsEnabled()); | |
| 70 | |
| 71 // Listen for focus change event to update the FocusManager focused view. | |
| 72 g_signal_connect(native_control, "focus-in-event", | |
| 73 G_CALLBACK(CallFocusIn), this); | |
| 74 } | |
| 75 | |
| 76 // static | |
| 77 gboolean NativeControlGtk::CallFocusIn(GtkWidget* gtk_widget, | |
| 78 GdkEventFocus* event, | |
| 79 NativeControlGtk* control) { | |
| 80 Widget* widget = Widget::GetTopLevelWidgetForNativeView(gtk_widget); | |
| 81 FocusManager* focus_manager = widget ? widget->GetFocusManager() : NULL; | |
| 82 if (!focus_manager) { | |
| 83 // TODO(jcampan): http://crbug.com/21378 Reenable this NOTREACHED() when the | |
| 84 // options page is only based on views. | |
| 85 // NOTREACHED(); | |
| 86 NOTIMPLEMENTED(); | |
| 87 return false; | |
| 88 } | |
| 89 focus_manager->SetFocusedView(control->focus_view()); | |
| 90 return false; | |
| 91 } | |
| 92 | |
| 93 } // namespace views | |
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