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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 "webkit/plugins/npapi/webplugin_delegate_impl.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 #include <gdk/gdkx.h> | |
| 9 | |
| 10 #include <string> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/metrics/stats_counters.h" | |
| 14 #include "skia/ext/platform_canvas.h" | |
| 15 #include "third_party/WebKit/public/web/WebInputEvent.h" | |
| 16 #include "ui/base/gtk/gtk_compat.h" | |
| 17 #include "ui/gfx/blit.h" | |
| 18 #include "webkit/common/cursors/webcursor.h" | |
| 19 #include "webkit/plugins/npapi/plugin_instance.h" | |
| 20 #include "webkit/plugins/npapi/webplugin.h" | |
| 21 #include "webkit/plugins/plugin_constants.h" | |
| 22 | |
| 23 #include "third_party/npapi/bindings/npapi_x11.h" | |
| 24 | |
| 25 using WebKit::WebKeyboardEvent; | |
| 26 using WebKit::WebInputEvent; | |
| 27 using WebKit::WebMouseEvent; | |
| 28 | |
| 29 namespace webkit { | |
| 30 namespace npapi { | |
| 31 | |
| 32 WebPluginDelegateImpl::WebPluginDelegateImpl( | |
| 33 PluginInstance* instance) | |
| 34 : windowed_handle_(0), | |
| 35 windowed_did_set_window_(false), | |
| 36 windowless_(false), | |
| 37 plugin_(NULL), | |
| 38 instance_(instance), | |
| 39 windowless_shm_pixmap_(None), | |
| 40 pixmap_(NULL), | |
| 41 first_event_time_(-1.0), | |
| 42 plug_(NULL), | |
| 43 socket_(NULL), | |
| 44 quirks_(0), | |
| 45 handle_event_depth_(0), | |
| 46 first_set_window_call_(true), | |
| 47 plugin_has_focus_(false), | |
| 48 has_webkit_focus_(false), | |
| 49 containing_view_has_focus_(true), | |
| 50 creation_succeeded_(false) { | |
| 51 memset(&window_, 0, sizeof(window_)); | |
| 52 if (instance_->mime_type() == kFlashPluginSwfMimeType) { | |
| 53 // Flash is tied to Firefox's whacky behavior with windowless plugins. See | |
| 54 // comments in WindowlessPaint. | |
| 55 // TODO(viettrungluu): PLUGIN_QUIRK_WINDOWLESS_NO_RIGHT_CLICK: Don't allow | |
| 56 // right-clicks in windowless content since Flash 10.1 (initial release, at | |
| 57 // least) hangs in that case. Remove this once Flash is fixed. | |
| 58 quirks_ |= PLUGIN_QUIRK_WINDOWLESS_OFFSET_WINDOW_TO_DRAW | |
| 59 | PLUGIN_QUIRK_WINDOWLESS_INVALIDATE_AFTER_SET_WINDOW | |
| 60 | PLUGIN_QUIRK_WINDOWLESS_NO_RIGHT_CLICK; | |
| 61 } | |
| 62 | |
| 63 // TODO(evanm): I played with this for quite a while but couldn't | |
| 64 // figure out a way to make Flash not crash unless I didn't call | |
| 65 // NPP_SetWindow. | |
| 66 // However, after piman's grand refactor of windowed plugins, maybe | |
| 67 // this is no longer necessary. | |
| 68 quirks_ |= PLUGIN_QUIRK_DONT_SET_NULL_WINDOW_HANDLE_ON_DESTROY; | |
| 69 } | |
| 70 | |
| 71 WebPluginDelegateImpl::~WebPluginDelegateImpl() { | |
| 72 DestroyInstance(); | |
| 73 | |
| 74 if (!windowless_) | |
| 75 WindowedDestroyWindow(); | |
| 76 | |
| 77 if (window_.ws_info) { | |
| 78 // We only ever use ws_info as an NPSetWindowCallbackStruct. | |
| 79 delete static_cast<NPSetWindowCallbackStruct*>(window_.ws_info); | |
| 80 } | |
| 81 | |
| 82 if (pixmap_) { | |
| 83 g_object_unref(pixmap_); | |
| 84 pixmap_ = NULL; | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 bool WebPluginDelegateImpl::PlatformInitialize() { | |
| 89 gfx::PluginWindowHandle handle = | |
| 90 windowless_ ? 0 : gtk_plug_get_id(GTK_PLUG(plug_)); | |
| 91 plugin_->SetWindow(handle); | |
| 92 return true; | |
| 93 } | |
| 94 | |
| 95 void WebPluginDelegateImpl::PlatformDestroyInstance() { | |
| 96 // Nothing to do here. | |
| 97 } | |
| 98 | |
| 99 void WebPluginDelegateImpl::Paint(WebKit::WebCanvas* canvas, | |
| 100 const gfx::Rect& rect) { | |
| 101 if (!windowless_ || !skia::SupportsPlatformPaint(canvas)) | |
| 102 return; | |
| 103 skia::ScopedPlatformPaint scoped_platform_paint(canvas); | |
| 104 cairo_t* context = scoped_platform_paint.GetPlatformSurface(); | |
| 105 WindowlessPaint(context, rect); | |
| 106 } | |
| 107 | |
| 108 bool WebPluginDelegateImpl::WindowedCreatePlugin() { | |
| 109 DCHECK(!windowed_handle_); | |
| 110 DCHECK(!plug_); | |
| 111 | |
| 112 // NPP_GetValue() might write 4 bytes of data to this variable. Don't use a | |
| 113 // single byte bool, use an int instead and make sure it is initialized. | |
| 114 int xembed = 0; | |
| 115 NPError err = instance_->NPP_GetValue(NPPVpluginNeedsXEmbed, &xembed); | |
| 116 if (err != NPERR_NO_ERROR || !xembed) { | |
| 117 NOTIMPLEMENTED() << " windowed plugin but without xembed. " | |
| 118 "See http://code.google.com/p/chromium/issues/detail?id=38229"; | |
| 119 return false; | |
| 120 } | |
| 121 | |
| 122 // Passing 0 as the socket XID creates a plug without plugging it in a socket | |
| 123 // yet, so that it can be latter added with gtk_socket_add_id(). | |
| 124 plug_ = gtk_plug_new(0); | |
| 125 gtk_widget_show(plug_); | |
| 126 socket_ = gtk_socket_new(); | |
| 127 gtk_widget_show(socket_); | |
| 128 gtk_container_add(GTK_CONTAINER(plug_), socket_); | |
| 129 gtk_widget_show_all(plug_); | |
| 130 | |
| 131 // Prevent the plug from being destroyed if the browser kills the container | |
| 132 // window. | |
| 133 g_signal_connect(plug_, "delete-event", G_CALLBACK(gtk_true), NULL); | |
| 134 // Prevent the socket from being destroyed when the plugin removes itself. | |
| 135 g_signal_connect(socket_, "plug_removed", G_CALLBACK(gtk_true), NULL); | |
| 136 | |
| 137 windowed_handle_ = gtk_socket_get_id(GTK_SOCKET(socket_)); | |
| 138 | |
| 139 window_.window = reinterpret_cast<void*>(windowed_handle_); | |
| 140 | |
| 141 if (!window_.ws_info) | |
| 142 window_.ws_info = new NPSetWindowCallbackStruct; | |
| 143 NPSetWindowCallbackStruct* extra = | |
| 144 static_cast<NPSetWindowCallbackStruct*>(window_.ws_info); | |
| 145 extra->type = NP_SETWINDOW; | |
| 146 extra->display = GDK_DISPLAY(); | |
| 147 int screen = DefaultScreen(GDK_DISPLAY()); | |
| 148 extra->visual = DefaultVisual(GDK_DISPLAY(), screen); | |
| 149 extra->depth = DefaultDepth(GDK_DISPLAY(), screen); | |
| 150 extra->colormap = DefaultColormap(GDK_DISPLAY(), screen); | |
| 151 | |
| 152 return true; | |
| 153 } | |
| 154 | |
| 155 void WebPluginDelegateImpl::WindowedDestroyWindow() { | |
| 156 if (plug_) { | |
| 157 plugin_->WillDestroyWindow(gtk_plug_get_id(GTK_PLUG(plug_))); | |
| 158 | |
| 159 gtk_widget_destroy(plug_); | |
| 160 plug_ = NULL; | |
| 161 socket_ = NULL; | |
| 162 windowed_handle_ = 0; | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 bool WebPluginDelegateImpl::WindowedReposition( | |
| 167 const gfx::Rect& window_rect, | |
| 168 const gfx::Rect& clip_rect) { | |
| 169 if (window_rect == window_rect_ && clip_rect == clip_rect_) | |
| 170 return false; | |
| 171 | |
| 172 window_rect_ = window_rect; | |
| 173 clip_rect_ = clip_rect; | |
| 174 | |
| 175 return true; | |
| 176 } | |
| 177 | |
| 178 void WebPluginDelegateImpl::WindowedSetWindow() { | |
| 179 if (!instance_.get()) | |
| 180 return; | |
| 181 | |
| 182 if (!windowed_handle_) { | |
| 183 NOTREACHED(); | |
| 184 return; | |
| 185 } | |
| 186 | |
| 187 // See https://bugzilla.mozilla.org/show_bug.cgi?id=108347 | |
| 188 // If we call NPP_SetWindow with a <= 0 width or height, problems arise in | |
| 189 // Flash (and possibly other plugins). | |
| 190 // TODO(piman): the Mozilla code suggests that for the Java plugin, we should | |
| 191 // still call NPP_SetWindow in that case. We need to verify that. | |
| 192 if (window_rect_.width() <= 0 || window_rect_.height() <= 0) { | |
| 193 return; | |
| 194 } | |
| 195 | |
| 196 instance()->set_window_handle(windowed_handle_); | |
| 197 | |
| 198 DCHECK(!instance()->windowless()); | |
| 199 | |
| 200 window_.clipRect.top = clip_rect_.y(); | |
| 201 window_.clipRect.left = clip_rect_.x(); | |
| 202 window_.clipRect.bottom = clip_rect_.y() + clip_rect_.height(); | |
| 203 window_.clipRect.right = clip_rect_.x() + clip_rect_.width(); | |
| 204 window_.height = window_rect_.height(); | |
| 205 window_.width = window_rect_.width(); | |
| 206 window_.x = window_rect_.x(); | |
| 207 window_.y = window_rect_.y(); | |
| 208 window_.type = NPWindowTypeWindow; | |
| 209 | |
| 210 // Reset this flag before entering the instance in case of side-effects. | |
| 211 windowed_did_set_window_ = true; | |
| 212 | |
| 213 NPError err = instance()->NPP_SetWindow(&window_); | |
| 214 DCHECK(err == NPERR_NO_ERROR); | |
| 215 } | |
| 216 | |
| 217 void WebPluginDelegateImpl::WindowlessUpdateGeometry( | |
| 218 const gfx::Rect& window_rect, | |
| 219 const gfx::Rect& clip_rect) { | |
| 220 // Only resend to the instance if the geometry has changed. | |
| 221 if (window_rect == window_rect_ && clip_rect == clip_rect_) | |
| 222 return; | |
| 223 | |
| 224 clip_rect_ = clip_rect; | |
| 225 window_rect_ = window_rect; | |
| 226 WindowlessSetWindow(); | |
| 227 } | |
| 228 | |
| 229 void WebPluginDelegateImpl::EnsurePixmapAtLeastSize(int width, int height) { | |
| 230 if (pixmap_) { | |
| 231 gint cur_width, cur_height; | |
| 232 gdk_pixmap_get_size(pixmap_, &cur_width, &cur_height); | |
| 233 if (cur_width >= width && cur_height >= height) | |
| 234 return; // We are already the appropriate size. | |
| 235 | |
| 236 // Otherwise, we need to recreate ourselves. | |
| 237 g_object_unref(pixmap_); | |
| 238 pixmap_ = NULL; | |
| 239 } | |
| 240 | |
| 241 // |sys_visual| is owned by gdk; we shouldn't free it. | |
| 242 GdkVisual* sys_visual = gdk_visual_get_system(); | |
| 243 pixmap_ = gdk_pixmap_new(NULL, // use width/height/depth params | |
| 244 std::max(1, width), std::max(1, height), | |
| 245 sys_visual->depth); | |
| 246 // TODO(erg): Replace this with GdkVisual when we move to GTK3. | |
| 247 GdkColormap* colormap = gdk_colormap_new(gdk_visual_get_system(), | |
| 248 FALSE); | |
| 249 gdk_drawable_set_colormap(pixmap_, colormap); | |
| 250 // The GdkDrawable now owns the GdkColormap. | |
| 251 g_object_unref(colormap); | |
| 252 } | |
| 253 | |
| 254 #ifdef DEBUG_RECTANGLES | |
| 255 namespace { | |
| 256 | |
| 257 // Draw a rectangle on a Cairo context. | |
| 258 // Useful for debugging various rectangles involved in drawing plugins. | |
| 259 void DrawDebugRectangle(cairo_t* cairo, | |
| 260 const gfx::Rect& rect, | |
| 261 float r, float g, float b) { | |
| 262 cairo_set_source_rgba(cairo, r, g, b, 0.5); | |
| 263 cairo_rectangle(cairo, rect.x(), rect.y(), | |
| 264 rect.width(), rect.height()); | |
| 265 cairo_stroke(cairo); | |
| 266 } | |
| 267 | |
| 268 } // namespace | |
| 269 #endif | |
| 270 | |
| 271 void WebPluginDelegateImpl::WindowlessPaint(cairo_t* context, | |
| 272 const gfx::Rect& damage_rect) { | |
| 273 // Compare to: | |
| 274 // http://mxr.mozilla.org/firefox/source/layout/generic/nsObjectFrame.cpp: | |
| 275 // nsPluginInstanceOwner::Renderer::NativeDraw(). | |
| 276 | |
| 277 DCHECK(context); | |
| 278 | |
| 279 // TODO(darin): we should avoid calling NPP_SetWindow here since it may | |
| 280 // cause page layout to be invalidated. | |
| 281 | |
| 282 // The actual dirty region is just the intersection of the plugin window and | |
| 283 // the clip window with the damage region. However, the plugin wants to draw | |
| 284 // relative to the containing window's origin, so our pixmap must be from the | |
| 285 // window's origin down to the bottom-right edge of the dirty region. | |
| 286 // | |
| 287 // Typical case: | |
| 288 // X-----------------------------------+-----------------------------+ | |
| 289 // | | | | |
| 290 // | pixmap +-------------------+ | | |
| 291 // | | damage | window | | |
| 292 // | | | | | |
| 293 // | +---+-------------------+-------------+ | | |
| 294 // | | | | clip | | | |
| 295 // | +---+---+-------------------+----------+ | | | |
| 296 // | | | | | | | | | |
| 297 // | | | | draw | | | | | |
| 298 // | | | | | | | | | |
| 299 // +-------+---+---+-------------------+----------+--+ | | |
| 300 // | | | | | | | |
| 301 // | | +-------------------+ | | | |
| 302 // | | | | | |
| 303 // | | plugin | | | |
| 304 // | +--------------------------------------+ | | |
| 305 // | | | |
| 306 // | | | |
| 307 // +-----------------------------------------------------------------+ | |
| 308 // X = origin | |
| 309 // | |
| 310 // NPAPI doesn't properly define which coordinates each of | |
| 311 // - window.clipRect, window.x and window.y in the SetWindow call | |
| 312 // - x and y in GraphicsExpose HandleEvent call | |
| 313 // are relative to, nor does it define what the pixmap is relative to. | |
| 314 // | |
| 315 // Any sane values for them just don't work with the flash plugin. Firefox | |
| 316 // has some interesting behavior. Experiments showed that: | |
| 317 // - window.clipRect is always in the same space as window.x and window.y | |
| 318 // - in the first SetWindow call, or when scrolling, window.x and window.y are | |
| 319 // the coordinates of the plugin relative to the window. | |
| 320 // - whenever only a part of the plugin is drawn, Firefox issues a SetWindow | |
| 321 // call before each GraphicsExpose event, that sets the drawing origin to | |
| 322 // (0, 0) as if the plugin was scrolled to be partially out of the view. The | |
| 323 // GraphicsExpose event has coordinates relative to the "window" (assuming | |
| 324 // that virtual scroll). The pixmap is also relative to the window. It always | |
| 325 // sets the clip rect to the draw rect. | |
| 326 // | |
| 327 // Attempts to deviate from that makes Flash render at the wrong place in the | |
| 328 // pixmap, or render the wrong pixels. | |
| 329 // | |
| 330 // Flash plugin: | |
| 331 // X-----------------------------------------------------------------+ | |
| 332 // | | | |
| 333 // | +-------------------+ "real" window | | |
| 334 // | | damage | | | |
| 335 // | | | | | |
| 336 // | +---+-------------------+-------------+ | | |
| 337 // | | | | "real" clip | | | |
| 338 // | +---+---O===================#==========#==#===============# | |
| 339 // | | | H draw | | | H | |
| 340 // | | | H = pixmap | | | H | |
| 341 // | | | H = "apparent" clip | | | H | |
| 342 // | + +---#-------------------+----------+--+ H | |
| 343 // | | H | | H | |
| 344 // | | H-------------------+ | H | |
| 345 // | | H | H | |
| 346 // | | H plugin | H | |
| 347 // | +-------#------------------------------+ H | |
| 348 // | H H | |
| 349 // | H "apparent" window H | |
| 350 // +---------------#=================================================# | |
| 351 // X = "real" origin | |
| 352 // O = "apparent" origin | |
| 353 // "real" means as seen by Chrome | |
| 354 // "apparent" means as seen by the plugin. | |
| 355 | |
| 356 gfx::Rect draw_rect = gfx::IntersectRects(window_rect_, damage_rect); | |
| 357 | |
| 358 // clip_rect_ is relative to the plugin | |
| 359 gfx::Rect clip_rect_window = clip_rect_; | |
| 360 clip_rect_window.Offset(window_rect_.x(), window_rect_.y()); | |
| 361 draw_rect.Intersect(clip_rect_window); | |
| 362 | |
| 363 // These offsets represent by how much the view is shifted to accomodate | |
| 364 // Flash (the coordinates of X relative to O in the diagram above). | |
| 365 int offset_x = 0; | |
| 366 int offset_y = 0; | |
| 367 if (quirks_ & PLUGIN_QUIRK_WINDOWLESS_OFFSET_WINDOW_TO_DRAW) { | |
| 368 offset_x = -draw_rect.x(); | |
| 369 offset_y = -draw_rect.y(); | |
| 370 window_.clipRect.top = 0; | |
| 371 window_.clipRect.left = 0; | |
| 372 window_.clipRect.bottom = draw_rect.height(); | |
| 373 window_.clipRect.right = draw_rect.width(); | |
| 374 window_.height = window_rect_.height(); | |
| 375 window_.width = window_rect_.width(); | |
| 376 window_.x = window_rect_.x() - draw_rect.x(); | |
| 377 window_.y = window_rect_.y() - draw_rect.y(); | |
| 378 window_.type = NPWindowTypeDrawable; | |
| 379 DCHECK(window_.ws_info); | |
| 380 NPError err = instance()->NPP_SetWindow(&window_); | |
| 381 DCHECK_EQ(err, NPERR_NO_ERROR); | |
| 382 } | |
| 383 | |
| 384 gfx::Rect pixmap_draw_rect = draw_rect; | |
| 385 pixmap_draw_rect.Offset(offset_x, offset_y); | |
| 386 | |
| 387 gfx::Rect pixmap_rect(0, 0, | |
| 388 pixmap_draw_rect.right(), | |
| 389 pixmap_draw_rect.bottom()); | |
| 390 | |
| 391 // Construct the paint message, targeting the pixmap. | |
| 392 NPEvent np_event = {0}; | |
| 393 XGraphicsExposeEvent& event = np_event.xgraphicsexpose; | |
| 394 event.type = GraphicsExpose; | |
| 395 event.x = pixmap_draw_rect.x(); | |
| 396 event.y = pixmap_draw_rect.y(); | |
| 397 event.width = pixmap_draw_rect.width(); | |
| 398 event.height = pixmap_draw_rect.height(); | |
| 399 event.display = GDK_DISPLAY(); | |
| 400 | |
| 401 if (windowless_shm_pixmap_ != None) { | |
| 402 Pixmap pixmap = None; | |
| 403 GC xgc = NULL; | |
| 404 Display* display = event.display; | |
| 405 gfx::Rect plugin_draw_rect = draw_rect; | |
| 406 | |
| 407 // Make plugin_draw_rect relative to the plugin window. | |
| 408 plugin_draw_rect.Offset(-window_rect_.x(), -window_rect_.y()); | |
| 409 | |
| 410 // In case the drawing area does not start with the plugin window origin, | |
| 411 // we can not let the plugin directly draw over the shared memory pixmap. | |
| 412 if (plugin_draw_rect.x() != pixmap_draw_rect.x() || | |
| 413 plugin_draw_rect.y() != pixmap_draw_rect.y()) { | |
| 414 pixmap = XCreatePixmap(display, windowless_shm_pixmap_, | |
| 415 std::max(1, pixmap_rect.width()), | |
| 416 std::max(1, pixmap_rect.height()), | |
| 417 DefaultDepth(display, DefaultScreen(display))); | |
| 418 xgc = XCreateGC(display, windowless_shm_pixmap_, 0, NULL); | |
| 419 // Copy the current image into the pixmap, so the plugin can draw over it. | |
| 420 XCopyArea(display, windowless_shm_pixmap_, pixmap, xgc, | |
| 421 plugin_draw_rect.x(), plugin_draw_rect.y(), | |
| 422 pixmap_draw_rect.width(), pixmap_draw_rect.height(), | |
| 423 pixmap_draw_rect.x(), pixmap_draw_rect.y()); | |
| 424 | |
| 425 event.drawable = pixmap; | |
| 426 } else { | |
| 427 event.drawable = windowless_shm_pixmap_; | |
| 428 } | |
| 429 | |
| 430 // Tell the plugin to paint into the pixmap. | |
| 431 base::StatsRate plugin_paint("Plugin.Paint"); | |
| 432 base::StatsScope<base::StatsRate> scope(plugin_paint); | |
| 433 instance()->NPP_HandleEvent(&np_event); | |
| 434 | |
| 435 if (pixmap != None) { | |
| 436 // Copy the rendered image pixmap back into the shm pixmap | |
| 437 // and thus the drawing buffer. | |
| 438 XCopyArea(display, pixmap, windowless_shm_pixmap_, xgc, | |
| 439 pixmap_draw_rect.x(), pixmap_draw_rect.y(), | |
| 440 pixmap_draw_rect.width(), pixmap_draw_rect.height(), | |
| 441 plugin_draw_rect.x(), plugin_draw_rect.y()); | |
| 442 XSync(display, FALSE); | |
| 443 if (xgc) | |
| 444 XFreeGC(display, xgc); | |
| 445 XFreePixmap(display, pixmap); | |
| 446 } else { | |
| 447 XSync(display, FALSE); | |
| 448 } | |
| 449 } else { | |
| 450 EnsurePixmapAtLeastSize(pixmap_rect.width(), pixmap_rect.height()); | |
| 451 | |
| 452 // Copy the current image into the pixmap, so the plugin can draw over | |
| 453 // this background. | |
| 454 cairo_t* cairo = gdk_cairo_create(pixmap_); | |
| 455 BlitContextToContext(cairo, pixmap_draw_rect, context, draw_rect.origin()); | |
| 456 cairo_destroy(cairo); | |
| 457 | |
| 458 event.drawable = GDK_PIXMAP_XID(pixmap_); | |
| 459 | |
| 460 // Tell the plugin to paint into the pixmap. | |
| 461 base::StatsRate plugin_paint("Plugin.Paint"); | |
| 462 base::StatsScope<base::StatsRate> scope(plugin_paint); | |
| 463 instance()->NPP_HandleEvent(&np_event); | |
| 464 | |
| 465 cairo_save(context); | |
| 466 // Now copy the rendered image pixmap back into the drawing buffer. | |
| 467 gdk_cairo_set_source_pixmap(context, pixmap_, -offset_x, -offset_y); | |
| 468 cairo_rectangle(context, draw_rect.x(), draw_rect.y(), | |
| 469 draw_rect.width(), draw_rect.height()); | |
| 470 cairo_clip(context); | |
| 471 cairo_paint(context); | |
| 472 | |
| 473 #ifdef DEBUG_RECTANGLES | |
| 474 // Draw some debugging rectangles. | |
| 475 // Pixmap rect = blue. | |
| 476 DrawDebugRectangle(context, pixmap_rect, 0, 0, 1); | |
| 477 // Drawing rect = red. | |
| 478 DrawDebugRectangle(context, draw_rect, 1, 0, 0); | |
| 479 #endif | |
| 480 cairo_restore(context); | |
| 481 } | |
| 482 } | |
| 483 | |
| 484 void WebPluginDelegateImpl::WindowlessSetWindow() { | |
| 485 if (!instance()) | |
| 486 return; | |
| 487 | |
| 488 if (window_rect_.IsEmpty()) // wait for geometry to be set. | |
| 489 return; | |
| 490 | |
| 491 DCHECK(instance()->windowless()); | |
| 492 // Mozilla docs say that this window param is not used for windowless | |
| 493 // plugins; rather, the window is passed during the GraphicsExpose event. | |
| 494 DCHECK_EQ(window_.window, static_cast<void*>(NULL)); | |
| 495 | |
| 496 window_.clipRect.top = clip_rect_.y() + window_rect_.y(); | |
| 497 window_.clipRect.left = clip_rect_.x() + window_rect_.x(); | |
| 498 window_.clipRect.bottom = | |
| 499 clip_rect_.y() + clip_rect_.height() + window_rect_.y(); | |
| 500 window_.clipRect.right = | |
| 501 clip_rect_.x() + clip_rect_.width() + window_rect_.x(); | |
| 502 window_.height = window_rect_.height(); | |
| 503 window_.width = window_rect_.width(); | |
| 504 window_.x = window_rect_.x(); | |
| 505 window_.y = window_rect_.y(); | |
| 506 window_.type = NPWindowTypeDrawable; | |
| 507 | |
| 508 if (!window_.ws_info) | |
| 509 window_.ws_info = new NPSetWindowCallbackStruct; | |
| 510 NPSetWindowCallbackStruct* extra = | |
| 511 static_cast<NPSetWindowCallbackStruct*>(window_.ws_info); | |
| 512 extra->display = GDK_DISPLAY(); | |
| 513 int screen = DefaultScreen(GDK_DISPLAY()); | |
| 514 extra->visual = DefaultVisual(GDK_DISPLAY(), screen); | |
| 515 extra->depth = DefaultDepth(GDK_DISPLAY(), screen); | |
| 516 extra->colormap = DefaultColormap(GDK_DISPLAY(), screen); | |
| 517 | |
| 518 NPError err = instance()->NPP_SetWindow(&window_); | |
| 519 DCHECK(err == NPERR_NO_ERROR); | |
| 520 if (quirks_ & PLUGIN_QUIRK_WINDOWLESS_INVALIDATE_AFTER_SET_WINDOW) { | |
| 521 // After a NPP_SetWindow, Flash cancels its timer that generates the | |
| 522 // invalidates until it gets a paint event, but doesn't explicitly call | |
| 523 // NPP_InvalidateRect. | |
| 524 plugin_->InvalidateRect(clip_rect_); | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 bool WebPluginDelegateImpl::PlatformSetPluginHasFocus(bool focused) { | |
| 529 DCHECK(instance()->windowless()); | |
| 530 | |
| 531 NPEvent np_event = {0}; | |
| 532 XFocusChangeEvent& event = np_event.xfocus; | |
| 533 event.type = focused ? FocusIn : FocusOut; | |
| 534 event.display = GDK_DISPLAY(); | |
| 535 // Same values as Firefox. .serial and .window stay 0. | |
| 536 event.mode = -1; | |
| 537 event.detail = NotifyDetailNone; | |
| 538 instance()->NPP_HandleEvent(&np_event); | |
| 539 return true; | |
| 540 } | |
| 541 | |
| 542 // Converts a WebInputEvent::Modifiers bitfield into a | |
| 543 // corresponding X modifier state. | |
| 544 static int GetXModifierState(int modifiers) { | |
| 545 int x_state = 0; | |
| 546 if (modifiers & WebInputEvent::ControlKey) | |
| 547 x_state |= ControlMask; | |
| 548 if (modifiers & WebInputEvent::ShiftKey) | |
| 549 x_state |= ShiftMask; | |
| 550 if (modifiers & WebInputEvent::AltKey) | |
| 551 x_state |= Mod1Mask; | |
| 552 if (modifiers & WebInputEvent::MetaKey) | |
| 553 x_state |= Mod2Mask; | |
| 554 if (modifiers & WebInputEvent::LeftButtonDown) | |
| 555 x_state |= Button1Mask; | |
| 556 if (modifiers & WebInputEvent::MiddleButtonDown) | |
| 557 x_state |= Button2Mask; | |
| 558 if (modifiers & WebInputEvent::RightButtonDown) | |
| 559 x_state |= Button3Mask; | |
| 560 // TODO(piman@google.com): There are other modifiers, e.g. Num Lock, that | |
| 561 // should be set (and Firefox does), but we didn't keep the information in | |
| 562 // the WebKit event. | |
| 563 return x_state; | |
| 564 } | |
| 565 | |
| 566 static bool NPEventFromWebMouseEvent(const WebMouseEvent& event, | |
| 567 Time timestamp, | |
| 568 NPEvent* np_event) { | |
| 569 np_event->xany.display = GDK_DISPLAY(); | |
| 570 // NOTE: Firefox keeps xany.serial and xany.window as 0. | |
| 571 | |
| 572 int modifier_state = GetXModifierState(event.modifiers); | |
| 573 | |
| 574 Window root = GDK_ROOT_WINDOW(); | |
| 575 switch (event.type) { | |
| 576 case WebInputEvent::MouseMove: { | |
| 577 np_event->type = MotionNotify; | |
| 578 XMotionEvent& motion_event = np_event->xmotion; | |
| 579 motion_event.root = root; | |
| 580 motion_event.time = timestamp; | |
| 581 motion_event.x = event.x; | |
| 582 motion_event.y = event.y; | |
| 583 motion_event.x_root = event.globalX; | |
| 584 motion_event.y_root = event.globalY; | |
| 585 motion_event.state = modifier_state; | |
| 586 motion_event.is_hint = NotifyNormal; | |
| 587 motion_event.same_screen = True; | |
| 588 break; | |
| 589 } | |
| 590 case WebInputEvent::MouseLeave: | |
| 591 case WebInputEvent::MouseEnter: { | |
| 592 if (event.type == WebInputEvent::MouseEnter) { | |
| 593 np_event->type = EnterNotify; | |
| 594 } else { | |
| 595 np_event->type = LeaveNotify; | |
| 596 } | |
| 597 XCrossingEvent& crossing_event = np_event->xcrossing; | |
| 598 crossing_event.root = root; | |
| 599 crossing_event.time = timestamp; | |
| 600 crossing_event.x = event.x; | |
| 601 crossing_event.y = event.y; | |
| 602 crossing_event.x_root = event.globalX; | |
| 603 crossing_event.y_root = event.globalY; | |
| 604 crossing_event.mode = -1; // This is what Firefox sets it to. | |
| 605 crossing_event.detail = NotifyDetailNone; | |
| 606 crossing_event.same_screen = True; | |
| 607 // TODO(piman@google.com): set this to the correct value. Firefox does. I | |
| 608 // don't know where to get the information though, we get focus | |
| 609 // notifications, but no unfocus. | |
| 610 crossing_event.focus = 0; | |
| 611 crossing_event.state = modifier_state; | |
| 612 break; | |
| 613 } | |
| 614 case WebInputEvent::MouseUp: | |
| 615 case WebInputEvent::MouseDown: { | |
| 616 if (event.type == WebInputEvent::MouseDown) { | |
| 617 np_event->type = ButtonPress; | |
| 618 } else { | |
| 619 np_event->type = ButtonRelease; | |
| 620 } | |
| 621 XButtonEvent& button_event = np_event->xbutton; | |
| 622 button_event.root = root; | |
| 623 button_event.time = timestamp; | |
| 624 button_event.x = event.x; | |
| 625 button_event.y = event.y; | |
| 626 button_event.x_root = event.globalX; | |
| 627 button_event.y_root = event.globalY; | |
| 628 button_event.state = modifier_state; | |
| 629 switch (event.button) { | |
| 630 case WebMouseEvent::ButtonLeft: | |
| 631 button_event.button = Button1; | |
| 632 break; | |
| 633 case WebMouseEvent::ButtonMiddle: | |
| 634 button_event.button = Button2; | |
| 635 break; | |
| 636 case WebMouseEvent::ButtonRight: | |
| 637 button_event.button = Button3; | |
| 638 break; | |
| 639 default: | |
| 640 NOTREACHED(); | |
| 641 } | |
| 642 button_event.same_screen = True; | |
| 643 break; | |
| 644 } | |
| 645 default: | |
| 646 NOTREACHED(); | |
| 647 return false; | |
| 648 } | |
| 649 return true; | |
| 650 } | |
| 651 | |
| 652 static bool NPEventFromWebKeyboardEvent(const WebKeyboardEvent& event, | |
| 653 Time timestamp, | |
| 654 NPEvent* np_event) { | |
| 655 np_event->xany.display = GDK_DISPLAY(); | |
| 656 // NOTE: Firefox keeps xany.serial and xany.window as 0. | |
| 657 | |
| 658 switch (event.type) { | |
| 659 case WebKeyboardEvent::KeyDown: | |
| 660 np_event->type = KeyPress; | |
| 661 break; | |
| 662 case WebKeyboardEvent::KeyUp: | |
| 663 np_event->type = KeyRelease; | |
| 664 break; | |
| 665 default: | |
| 666 NOTREACHED(); | |
| 667 return false; | |
| 668 } | |
| 669 XKeyEvent& key_event = np_event->xkey; | |
| 670 key_event.send_event = False; | |
| 671 key_event.display = GDK_DISPLAY(); | |
| 672 // NOTE: Firefox keeps xany.serial and xany.window as 0. | |
| 673 // TODO(piman@google.com): is this right for multiple screens ? | |
| 674 key_event.root = DefaultRootWindow(key_event.display); | |
| 675 key_event.time = timestamp; | |
| 676 // NOTE: We don't have the correct information for x/y/x_root/y_root. Firefox | |
| 677 // doesn't have it either, so we pass the same values. | |
| 678 key_event.x = 0; | |
| 679 key_event.y = 0; | |
| 680 key_event.x_root = -1; | |
| 681 key_event.y_root = -1; | |
| 682 key_event.state = GetXModifierState(event.modifiers); | |
| 683 key_event.keycode = event.nativeKeyCode; | |
| 684 key_event.same_screen = True; | |
| 685 return true; | |
| 686 } | |
| 687 | |
| 688 static bool NPEventFromWebInputEvent(const WebInputEvent& event, | |
| 689 Time timestamp, | |
| 690 NPEvent* np_event) { | |
| 691 switch (event.type) { | |
| 692 case WebInputEvent::MouseMove: | |
| 693 case WebInputEvent::MouseLeave: | |
| 694 case WebInputEvent::MouseEnter: | |
| 695 case WebInputEvent::MouseDown: | |
| 696 case WebInputEvent::MouseUp: | |
| 697 if (event.size < sizeof(WebMouseEvent)) { | |
| 698 NOTREACHED(); | |
| 699 return false; | |
| 700 } | |
| 701 return NPEventFromWebMouseEvent( | |
| 702 *static_cast<const WebMouseEvent*>(&event), timestamp, np_event); | |
| 703 case WebInputEvent::KeyDown: | |
| 704 case WebInputEvent::KeyUp: | |
| 705 if (event.size < sizeof(WebKeyboardEvent)) { | |
| 706 NOTREACHED(); | |
| 707 return false; | |
| 708 } | |
| 709 return NPEventFromWebKeyboardEvent( | |
| 710 *static_cast<const WebKeyboardEvent*>(&event), timestamp, np_event); | |
| 711 default: | |
| 712 return false; | |
| 713 } | |
| 714 } | |
| 715 | |
| 716 bool WebPluginDelegateImpl::PlatformHandleInputEvent( | |
| 717 const WebInputEvent& event, WebCursor::CursorInfo* cursor_info) { | |
| 718 | |
| 719 if (first_event_time_ < 0.0) | |
| 720 first_event_time_ = event.timeStampSeconds; | |
| 721 Time timestamp = static_cast<Time>( | |
| 722 (event.timeStampSeconds - first_event_time_) * 1.0e3); | |
| 723 NPEvent np_event = {0}; | |
| 724 if (!NPEventFromWebInputEvent(event, timestamp, &np_event)) { | |
| 725 return false; | |
| 726 } | |
| 727 // See comment about PLUGIN_QUIRK_WINDOWLESS_NO_RIGHT_CLICK in constructor. | |
| 728 if (windowless_ && | |
| 729 (quirks_ & PLUGIN_QUIRK_WINDOWLESS_NO_RIGHT_CLICK) && | |
| 730 (np_event.type == ButtonPress || np_event.type == ButtonRelease) && | |
| 731 (np_event.xbutton.button == Button3)) { | |
| 732 return false; | |
| 733 } | |
| 734 | |
| 735 bool ret = instance()->NPP_HandleEvent(&np_event) != 0; | |
| 736 | |
| 737 // Flash always returns false, even when the event is handled. | |
| 738 ret = true; | |
| 739 | |
| 740 #if 0 | |
| 741 if (event->event == WM_MOUSEMOVE) { | |
| 742 // Snag a reference to the current cursor ASAP in case the plugin modified | |
| 743 // it. There is a nasty race condition here with the multiprocess browser | |
| 744 // as someone might be setting the cursor in the main process as well. | |
| 745 *cursor = current_windowless_cursor_; | |
| 746 } | |
| 747 #endif | |
| 748 | |
| 749 return ret; | |
| 750 } | |
| 751 | |
| 752 } // namespace npapi | |
| 753 } // namespace webkit | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 19761007:
Move NPAPI implementation out of webkit/plugins/npapi and into content. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/