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| 1 // Copyright (c) 2012 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 "content/browser/renderer_host/gtk_plugin_container_manager.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "content/browser/renderer_host/gtk_plugin_container.h" | |
| 11 #include "content/common/webplugin_geometry.h" | |
| 12 #include "ui/gfx/gtk_compat.h" | |
| 13 #include "ui/gfx/gtk_util.h" | |
| 14 | |
| 15 namespace content { | |
| 16 | |
| 17 GtkPluginContainerManager::GtkPluginContainerManager() : host_widget_(NULL) {} | |
| 18 | |
| 19 GtkPluginContainerManager::~GtkPluginContainerManager() {} | |
| 20 | |
| 21 GtkWidget* GtkPluginContainerManager::CreatePluginContainer( | |
| 22 gfx::PluginWindowHandle id) { | |
| 23 DCHECK(host_widget_); | |
| 24 GtkWidget *widget = gtk_plugin_container_new(); | |
| 25 plugin_window_to_widget_map_.insert(std::make_pair(id, widget)); | |
| 26 | |
| 27 // The Realize callback is responsible for adding the plug into the socket. | |
| 28 // The reason is 2-fold: | |
| 29 // - the plug can't be added until the socket is realized, but this may not | |
| 30 // happen until the socket is attached to a top-level window, which isn't the | |
| 31 // case for background tabs. | |
| 32 // - when dragging tabs, the socket gets unrealized, which breaks the XEMBED | |
| 33 // connection. We need to make it again when the tab is reattached, and the | |
| 34 // socket gets realized again. | |
| 35 // | |
| 36 // Note, the RealizeCallback relies on the plugin_window_to_widget_map_ to | |
| 37 // have the mapping. | |
| 38 g_signal_connect(widget, "realize", | |
| 39 G_CALLBACK(RealizeCallback), this); | |
| 40 | |
| 41 // Don't destroy the widget when the plug is removed. | |
| 42 g_signal_connect(widget, "plug-removed", | |
| 43 G_CALLBACK(gtk_true), NULL); | |
| 44 | |
| 45 gtk_container_add(GTK_CONTAINER(host_widget_), widget); | |
| 46 gtk_widget_show(widget); | |
| 47 | |
| 48 return widget; | |
| 49 } | |
| 50 | |
| 51 void GtkPluginContainerManager::DestroyPluginContainer( | |
| 52 gfx::PluginWindowHandle id) { | |
| 53 DCHECK(host_widget_); | |
| 54 GtkWidget* widget = MapIDToWidget(id); | |
| 55 if (widget) | |
| 56 gtk_widget_destroy(widget); | |
| 57 | |
| 58 plugin_window_to_widget_map_.erase(id); | |
| 59 } | |
| 60 | |
| 61 void GtkPluginContainerManager::MovePluginContainer( | |
| 62 const WebPluginGeometry& move) { | |
| 63 DCHECK(host_widget_); | |
| 64 GtkWidget *widget = MapIDToWidget(move.window); | |
| 65 if (!widget) | |
| 66 return; | |
| 67 | |
| 68 DCHECK(gtk_widget_get_has_window(widget)); | |
| 69 | |
| 70 if (!move.visible) { | |
| 71 gtk_widget_hide(widget); | |
| 72 return; | |
| 73 } | |
| 74 | |
| 75 gtk_widget_show(widget); | |
| 76 | |
| 77 if (!move.rects_valid) | |
| 78 return; | |
| 79 | |
| 80 // TODO(piman): if the widget hasn't been realized (e.g. the tab has been | |
| 81 // torn off and the parent gtk widget has been detached from the hierarchy), | |
| 82 // we lose the cutout information. | |
| 83 if (gtk_widget_get_realized(widget)) { | |
| 84 GdkRectangle clip_rect = move.clip_rect.ToGdkRectangle(); | |
| 85 GdkRegion* clip_region = gdk_region_rectangle(&clip_rect); | |
| 86 gfx::SubtractRectanglesFromRegion(clip_region, move.cutout_rects); | |
| 87 gdk_window_shape_combine_region(gtk_widget_get_window(widget), | |
| 88 clip_region, 0, 0); | |
| 89 gdk_region_destroy(clip_region); | |
| 90 } | |
| 91 | |
| 92 // Update the window position. Resizing is handled by WebPluginDelegate. | |
| 93 // TODO(deanm): Verify that we only need to move and not resize. | |
| 94 // TODO(evanm): we should cache the last shape and position and skip all | |
| 95 // of this business in the common case where nothing has changed. | |
| 96 int current_x, current_y; | |
| 97 | |
| 98 // Until the above TODO is resolved, we can grab the last position | |
| 99 // off of the GtkFixed with a bit of hackery. | |
| 100 GValue value = {0}; | |
| 101 g_value_init(&value, G_TYPE_INT); | |
| 102 gtk_container_child_get_property(GTK_CONTAINER(host_widget_), widget, | |
| 103 "x", &value); | |
| 104 current_x = g_value_get_int(&value); | |
| 105 gtk_container_child_get_property(GTK_CONTAINER(host_widget_), widget, | |
| 106 "y", &value); | |
| 107 current_y = g_value_get_int(&value); | |
| 108 g_value_unset(&value); | |
| 109 | |
| 110 if (move.window_rect.x() != current_x || | |
| 111 move.window_rect.y() != current_y) { | |
| 112 // Calling gtk_fixed_move unnecessarily is a no-no, as it causes the | |
| 113 // parent window to repaint! | |
| 114 gtk_fixed_move(GTK_FIXED(host_widget_), | |
| 115 widget, | |
| 116 move.window_rect.x(), | |
| 117 move.window_rect.y()); | |
| 118 } | |
| 119 | |
| 120 gtk_plugin_container_set_size(widget, | |
| 121 move.window_rect.width(), | |
| 122 move.window_rect.height()); | |
| 123 } | |
| 124 | |
| 125 GtkWidget* GtkPluginContainerManager::MapIDToWidget( | |
| 126 gfx::PluginWindowHandle id) { | |
| 127 PluginWindowToWidgetMap::const_iterator i = | |
| 128 plugin_window_to_widget_map_.find(id); | |
| 129 if (i != plugin_window_to_widget_map_.end()) | |
| 130 return i->second; | |
| 131 | |
| 132 LOG(ERROR) << "Request for widget host for unknown window id " << id; | |
| 133 | |
| 134 return NULL; | |
| 135 } | |
| 136 | |
| 137 gfx::PluginWindowHandle GtkPluginContainerManager::MapWidgetToID( | |
| 138 GtkWidget* widget) { | |
| 139 for (PluginWindowToWidgetMap::const_iterator i = | |
| 140 plugin_window_to_widget_map_.begin(); | |
| 141 i != plugin_window_to_widget_map_.end(); ++i) { | |
| 142 if (i->second == widget) | |
| 143 return i->first; | |
| 144 } | |
| 145 | |
| 146 LOG(ERROR) << "Request for id for unknown widget"; | |
| 147 return 0; | |
| 148 } | |
| 149 | |
| 150 // static | |
| 151 void GtkPluginContainerManager::RealizeCallback(GtkWidget* widget, | |
| 152 void* user_data) { | |
| 153 GtkPluginContainerManager* plugin_container_manager = | |
| 154 static_cast<GtkPluginContainerManager*>(user_data); | |
| 155 | |
| 156 gfx::PluginWindowHandle id = plugin_container_manager->MapWidgetToID(widget); | |
| 157 if (id) | |
| 158 gtk_socket_add_id(GTK_SOCKET(widget), id); | |
| 159 } | |
| 160 | |
| 161 } // namespace content | |
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