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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 "chrome/browser/ui/gtk/gtk_window_util.h" | |
| 6 | |
| 7 #include <dlfcn.h> | |
| 8 #include "content/public/browser/render_frame_host.h" | |
| 9 #include "content/public/browser/render_view_host.h" | |
| 10 #include "content/public/browser/web_contents.h" | |
| 11 #include "content/public/browser/web_contents_view.h" | |
| 12 #include "ui/base/base_window.h" | |
| 13 | |
| 14 using content::RenderFrameHost; | |
| 15 using content::WebContents; | |
| 16 | |
| 17 namespace gtk_window_util { | |
| 18 | |
| 19 const int kFrameBorderThickness = 4; | |
| 20 const int kResizeAreaCornerSize = 16; | |
| 21 | |
| 22 // Keep track of the last click time and the last click position so we can | |
| 23 // filter out extra GDK_BUTTON_PRESS events when a double click happens. | |
| 24 static guint32 last_click_time; | |
| 25 static int last_click_x; | |
| 26 static int last_click_y; | |
| 27 | |
| 28 // Performs Cut/Copy/Paste operation on the |window|. | |
| 29 // If the current render view is focused, then just call the specified |method| | |
| 30 // against the given web contents, otherwise emit the specified |signal| | |
| 31 // against the focused widget. | |
| 32 // TODO(suzhe): This approach does not work for plugins. | |
| 33 void DoCutCopyPaste(GtkWindow* window, | |
| 34 WebContents* web_contents, | |
| 35 void (WebContents::*method)(), | |
| 36 const char* signal) { | |
| 37 GtkWidget* widget = gtk_window_get_focus(window); | |
| 38 if (widget == NULL) | |
| 39 return; // Do nothing if no focused widget. | |
| 40 | |
| 41 if (web_contents && | |
| 42 widget == web_contents->GetView()->GetContentNativeView()) { | |
| 43 (web_contents->*method)(); | |
| 44 } else { | |
| 45 guint id; | |
| 46 if ((id = g_signal_lookup(signal, G_OBJECT_TYPE(widget))) != 0) | |
| 47 g_signal_emit(widget, id, 0); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 void DoCut(GtkWindow* window, WebContents* web_contents) { | |
| 52 DoCutCopyPaste(window, web_contents, | |
| 53 &WebContents::Cut, "cut-clipboard"); | |
| 54 } | |
| 55 | |
| 56 void DoCopy(GtkWindow* window, WebContents* web_contents) { | |
| 57 DoCutCopyPaste(window, web_contents, | |
| 58 &WebContents::Copy, "copy-clipboard"); | |
| 59 } | |
| 60 | |
| 61 void DoPaste(GtkWindow* window, WebContents* web_contents) { | |
| 62 DoCutCopyPaste(window, web_contents, | |
| 63 &WebContents::Paste, "paste-clipboard"); | |
| 64 } | |
| 65 | |
| 66 // Ubuntu patches their version of GTK+ so that there is always a | |
| 67 // gripper in the bottom right corner of the window. We dynamically | |
| 68 // look up this symbol because it's a non-standard Ubuntu extension to | |
| 69 // GTK+. We always need to disable this feature since we can't | |
| 70 // communicate this to WebKit easily. | |
| 71 typedef void (*gtk_window_set_has_resize_grip_func)(GtkWindow*, gboolean); | |
| 72 gtk_window_set_has_resize_grip_func gtk_window_set_has_resize_grip_sym; | |
| 73 | |
| 74 void DisableResizeGrip(GtkWindow* window) { | |
| 75 static bool resize_grip_looked_up = false; | |
| 76 if (!resize_grip_looked_up) { | |
| 77 resize_grip_looked_up = true; | |
| 78 gtk_window_set_has_resize_grip_sym = | |
| 79 reinterpret_cast<gtk_window_set_has_resize_grip_func>( | |
| 80 dlsym(NULL, "gtk_window_set_has_resize_grip")); | |
| 81 } | |
| 82 if (gtk_window_set_has_resize_grip_sym) | |
| 83 gtk_window_set_has_resize_grip_sym(window, FALSE); | |
| 84 } | |
| 85 | |
| 86 GdkCursorType GdkWindowEdgeToGdkCursorType(GdkWindowEdge edge) { | |
| 87 switch (edge) { | |
| 88 case GDK_WINDOW_EDGE_NORTH_WEST: | |
| 89 return GDK_TOP_LEFT_CORNER; | |
| 90 case GDK_WINDOW_EDGE_NORTH: | |
| 91 return GDK_TOP_SIDE; | |
| 92 case GDK_WINDOW_EDGE_NORTH_EAST: | |
| 93 return GDK_TOP_RIGHT_CORNER; | |
| 94 case GDK_WINDOW_EDGE_WEST: | |
| 95 return GDK_LEFT_SIDE; | |
| 96 case GDK_WINDOW_EDGE_EAST: | |
| 97 return GDK_RIGHT_SIDE; | |
| 98 case GDK_WINDOW_EDGE_SOUTH_WEST: | |
| 99 return GDK_BOTTOM_LEFT_CORNER; | |
| 100 case GDK_WINDOW_EDGE_SOUTH: | |
| 101 return GDK_BOTTOM_SIDE; | |
| 102 case GDK_WINDOW_EDGE_SOUTH_EAST: | |
| 103 return GDK_BOTTOM_RIGHT_CORNER; | |
| 104 default: | |
| 105 NOTREACHED(); | |
| 106 } | |
| 107 return GDK_LAST_CURSOR; | |
| 108 } | |
| 109 | |
| 110 bool BoundsMatchMonitorSize(GtkWindow* window, gfx::Rect bounds) { | |
| 111 // A screen can be composed of multiple monitors. | |
| 112 GdkScreen* screen = gtk_window_get_screen(window); | |
| 113 GdkRectangle monitor_size; | |
| 114 | |
| 115 if (gtk_widget_get_realized(GTK_WIDGET(window))) { | |
| 116 // |window| has been realized. | |
| 117 gint monitor_num = gdk_screen_get_monitor_at_window(screen, | |
| 118 gtk_widget_get_window(GTK_WIDGET(window))); | |
| 119 gdk_screen_get_monitor_geometry(screen, monitor_num, &monitor_size); | |
| 120 return bounds.size() == gfx::Size(monitor_size.width, monitor_size.height); | |
| 121 } | |
| 122 | |
| 123 // Make sure the window doesn't match any monitor size. We compare against | |
| 124 // all monitors because we don't know which monitor the window is going to | |
| 125 // open on before window realized. | |
| 126 gint num_monitors = gdk_screen_get_n_monitors(screen); | |
| 127 for (gint i = 0; i < num_monitors; ++i) { | |
| 128 GdkRectangle monitor_size; | |
| 129 gdk_screen_get_monitor_geometry(screen, i, &monitor_size); | |
| 130 if (bounds.size() == gfx::Size(monitor_size.width, monitor_size.height)) | |
| 131 return true; | |
| 132 } | |
| 133 return false; | |
| 134 } | |
| 135 | |
| 136 bool HandleTitleBarLeftMousePress( | |
| 137 GtkWindow* window, | |
| 138 const gfx::Rect& bounds, | |
| 139 GdkEventButton* event) { | |
| 140 // We want to start a move when the user single clicks, but not start a | |
| 141 // move when the user double clicks. However, a double click sends the | |
| 142 // following GDK events: GDK_BUTTON_PRESS, GDK_BUTTON_RELEASE, | |
| 143 // GDK_BUTTON_PRESS, GDK_2BUTTON_PRESS, GDK_BUTTON_RELEASE. If we | |
| 144 // start a gtk_window_begin_move_drag on the second GDK_BUTTON_PRESS, | |
| 145 // the call to gtk_window_maximize fails. To work around this, we | |
| 146 // keep track of the last click and if it's going to be a double click, | |
| 147 // we don't call gtk_window_begin_move_drag. | |
| 148 DCHECK(event->type == GDK_BUTTON_PRESS); | |
| 149 DCHECK(event->button == 1); | |
| 150 | |
| 151 static GtkSettings* settings = gtk_settings_get_default(); | |
| 152 gint double_click_time = 250; | |
| 153 gint double_click_distance = 5; | |
| 154 g_object_get(G_OBJECT(settings), | |
| 155 "gtk-double-click-time", &double_click_time, | |
| 156 "gtk-double-click-distance", &double_click_distance, | |
| 157 NULL); | |
| 158 | |
| 159 guint32 click_time = event->time - last_click_time; | |
| 160 int click_move_x = abs(event->x - last_click_x); | |
| 161 int click_move_y = abs(event->y - last_click_y); | |
| 162 | |
| 163 last_click_time = event->time; | |
| 164 last_click_x = static_cast<int>(event->x); | |
| 165 last_click_y = static_cast<int>(event->y); | |
| 166 | |
| 167 if (click_time > static_cast<guint32>(double_click_time) || | |
| 168 click_move_x > double_click_distance || | |
| 169 click_move_y > double_click_distance) { | |
| 170 // Ignore drag requests if the window is the size of the screen. | |
| 171 // We do this to avoid triggering fullscreen mode in metacity | |
| 172 // (without the --no-force-fullscreen flag) and in compiz (with | |
| 173 // Legacy Fullscreen Mode enabled). | |
| 174 if (!BoundsMatchMonitorSize(window, bounds)) { | |
| 175 gtk_window_begin_move_drag(window, event->button, | |
| 176 static_cast<gint>(event->x_root), | |
| 177 static_cast<gint>(event->y_root), | |
| 178 event->time); | |
| 179 } | |
| 180 return TRUE; | |
| 181 } | |
| 182 return FALSE; | |
| 183 } | |
| 184 | |
| 185 void UnMaximize(GtkWindow* window, | |
| 186 const gfx::Rect& bounds, | |
| 187 const gfx::Rect& restored_bounds) { | |
| 188 gtk_window_unmaximize(window); | |
| 189 | |
| 190 // It can happen that you end up with a window whose restore size is the same | |
| 191 // as the size of the screen, so unmaximizing it merely remaximizes it due to | |
| 192 // the same WM feature that SetWindowSize() works around. We try to detect | |
| 193 // this and resize the window to work around the issue. | |
| 194 if (bounds.size() == restored_bounds.size()) | |
| 195 gtk_window_resize(window, bounds.width(), bounds.height() - 1); | |
| 196 } | |
| 197 | |
| 198 void SetWindowCustomClass(GtkWindow* window, const std::string& wmclass) { | |
| 199 gtk_window_set_wmclass(window, | |
| 200 wmclass.c_str(), | |
| 201 gdk_get_program_class()); | |
| 202 | |
| 203 // Set WM_WINDOW_ROLE for session management purposes. | |
| 204 // See http://tronche.com/gui/x/icccm/sec-5.html . | |
| 205 gtk_window_set_role(window, wmclass.c_str()); | |
| 206 } | |
| 207 | |
| 208 void SetWindowSize(GtkWindow* window, const gfx::Size& size) { | |
| 209 gfx::Size new_size = size; | |
| 210 gint current_width = 0; | |
| 211 gint current_height = 0; | |
| 212 gtk_window_get_size(window, ¤t_width, ¤t_height); | |
| 213 GdkRectangle size_with_decorations = {0}; | |
| 214 GdkWindow* gdk_window = gtk_widget_get_window(GTK_WIDGET(window)); | |
| 215 if (gdk_window) { | |
| 216 gdk_window_get_frame_extents(gdk_window, | |
| 217 &size_with_decorations); | |
| 218 } | |
| 219 | |
| 220 if (current_width == size_with_decorations.width && | |
| 221 current_height == size_with_decorations.height) { | |
| 222 // Make sure the window doesn't match any monitor size. We compare against | |
| 223 // all monitors because we don't know which monitor the window is going to | |
| 224 // open on (the WM decides that). | |
| 225 GdkScreen* screen = gtk_window_get_screen(window); | |
| 226 gint num_monitors = gdk_screen_get_n_monitors(screen); | |
| 227 for (gint i = 0; i < num_monitors; ++i) { | |
| 228 GdkRectangle monitor_size; | |
| 229 gdk_screen_get_monitor_geometry(screen, i, &monitor_size); | |
| 230 if (gfx::Size(monitor_size.width, monitor_size.height) == size) { | |
| 231 gtk_window_resize(window, size.width(), size.height() - 1); | |
| 232 return; | |
| 233 } | |
| 234 } | |
| 235 } else { | |
| 236 // gtk_window_resize is the size of the window not including decorations, | |
| 237 // but we are given the |size| including window decorations. | |
| 238 if (size_with_decorations.width > current_width) { | |
| 239 new_size.set_width(size.width() - size_with_decorations.width + | |
| 240 current_width); | |
| 241 } | |
| 242 if (size_with_decorations.height > current_height) { | |
| 243 new_size.set_height(size.height() - size_with_decorations.height + | |
| 244 current_height); | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 gtk_window_resize(window, new_size.width(), new_size.height()); | |
| 249 } | |
| 250 | |
| 251 void UpdateWindowPosition(ui::BaseWindow* window, | |
| 252 gfx::Rect* bounds, | |
| 253 gfx::Rect* restored_bounds) { | |
| 254 gint x, y; | |
| 255 gtk_window_get_position(window->GetNativeWindow(), &x, &y); | |
| 256 (*bounds).set_origin(gfx::Point(x, y)); | |
| 257 if (!window->IsFullscreen() && !window->IsMaximized()) | |
| 258 *restored_bounds = *bounds; | |
| 259 } | |
| 260 | |
| 261 bool GetWindowEdge(const gfx::Size& window_size, | |
| 262 int top_edge_inset, | |
| 263 int x, | |
| 264 int y, | |
| 265 GdkWindowEdge* edge) { | |
| 266 gfx::Rect middle(window_size); | |
| 267 middle.Inset(kFrameBorderThickness, | |
| 268 kFrameBorderThickness - top_edge_inset, | |
| 269 kFrameBorderThickness, | |
| 270 kFrameBorderThickness); | |
| 271 if (middle.Contains(x, y)) | |
| 272 return false; | |
| 273 | |
| 274 gfx::Rect north(0, 0, window_size.width(), | |
| 275 kResizeAreaCornerSize - top_edge_inset); | |
| 276 gfx::Rect west(0, 0, kResizeAreaCornerSize, window_size.height()); | |
| 277 gfx::Rect south(0, window_size.height() - kResizeAreaCornerSize, | |
| 278 window_size.width(), kResizeAreaCornerSize); | |
| 279 gfx::Rect east(window_size.width() - kResizeAreaCornerSize, 0, | |
| 280 kResizeAreaCornerSize, window_size.height()); | |
| 281 | |
| 282 if (north.Contains(x, y)) { | |
| 283 if (west.Contains(x, y)) | |
| 284 *edge = GDK_WINDOW_EDGE_NORTH_WEST; | |
| 285 else if (east.Contains(x, y)) | |
| 286 *edge = GDK_WINDOW_EDGE_NORTH_EAST; | |
| 287 else | |
| 288 *edge = GDK_WINDOW_EDGE_NORTH; | |
| 289 } else if (south.Contains(x, y)) { | |
| 290 if (west.Contains(x, y)) | |
| 291 *edge = GDK_WINDOW_EDGE_SOUTH_WEST; | |
| 292 else if (east.Contains(x, y)) | |
| 293 *edge = GDK_WINDOW_EDGE_SOUTH_EAST; | |
| 294 else | |
| 295 *edge = GDK_WINDOW_EDGE_SOUTH; | |
| 296 } else { | |
| 297 if (west.Contains(x, y)) | |
| 298 *edge = GDK_WINDOW_EDGE_WEST; | |
| 299 else if (east.Contains(x, y)) | |
| 300 *edge = GDK_WINDOW_EDGE_EAST; | |
| 301 else | |
| 302 return false; // The cursor must be outside the window. | |
| 303 } | |
| 304 return true; | |
| 305 } | |
| 306 | |
| 307 } // namespace gtk_window_util | |
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Chromium Code Reviews
Issue 231733005:
Delete the GTK+ port of Chrome. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src