1 /* 2 * Copyright (C) 2006 Michael Emmel mike.emmel (at) gmail.com 3 * Copyright (C) 2007, 2009 Holger Hans Peter Freyther 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "config.h" 29 #include "Widget.h" 30 31 #include "Cursor.h" 32 #include "FrameView.h" 33 #include "GraphicsContext.h" 34 #include "HostWindow.h" 35 #include "IntRect.h" 36 #include "RenderObject.h" 37 38 #include <gdk/gdk.h> 39 #include <gtk/gtk.h> 40 41 namespace WebCore { 42 43 static GdkCursor* lastSetCursor; 44 45 Widget::Widget(PlatformWidget widget) 46 { 47 init(widget); 48 } 49 50 Widget::~Widget() 51 { 52 ASSERT(!parent()); 53 releasePlatformWidget(); 54 } 55 56 void Widget::setFocus() 57 { 58 gtk_widget_grab_focus(platformWidget() ? platformWidget() : GTK_WIDGET(root()->hostWindow()->platformPageClient())); 59 } 60 61 static GdkDrawable* gdkDrawable(PlatformWidget widget) 62 { 63 return widget ? widget->window : 0; 64 } 65 66 void Widget::setCursor(const Cursor& cursor) 67 { 68 GdkCursor* platformCursor = cursor.impl(); 69 70 // http://bugs.webkit.org/show_bug.cgi?id=16388 71 // [GTK] Widget::setCursor() gets called frequently 72 // 73 // gdk_window_set_cursor() in certain GDK backends seems to be an 74 // expensive operation, so avoid it if possible. 75 76 if (platformCursor == lastSetCursor) 77 return; 78 79 gdk_window_set_cursor(gdkDrawable(platformWidget()) ? GDK_WINDOW(gdkDrawable(platformWidget())) : GTK_WIDGET(root()->hostWindow()->platformPageClient())->window, platformCursor); 80 lastSetCursor = platformCursor; 81 } 82 83 void Widget::show() 84 { 85 if (!platformWidget()) 86 return; 87 gtk_widget_show(platformWidget()); 88 } 89 90 void Widget::hide() 91 { 92 if (!platformWidget()) 93 return; 94 gtk_widget_hide(platformWidget()); 95 } 96 97 void Widget::paint(GraphicsContext* context, const IntRect& rect) 98 { 99 } 100 101 void Widget::setIsSelected(bool isSelected) 102 { 103 if (!platformWidget()) 104 return; 105 106 // See if the platformWidget has a webkit-widget-is-selected property 107 // and set it afterwards. 108 GParamSpec* spec = g_object_class_find_property(G_OBJECT_GET_CLASS(platformWidget()), 109 "webkit-widget-is-selected"); 110 if (!spec) 111 return; 112 113 g_object_set(platformWidget(), "webkit-widget-is-selected", isSelected, NULL); 114 } 115 116 IntRect Widget::frameRect() const 117 { 118 return m_frame; 119 } 120 121 void Widget::setFrameRect(const IntRect& rect) 122 { 123 m_frame = rect; 124 } 125 126 void Widget::releasePlatformWidget() 127 { 128 if (!platformWidget()) 129 return; 130 g_object_unref(platformWidget()); 131 } 132 133 void Widget::retainPlatformWidget() 134 { 135 if (!platformWidget()) 136 return; 137 g_object_ref_sink(platformWidget()); 138 } 139 140 } 141