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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/web_contents/web_contents_view_gtk.h" | |
| 6 | |
| 7 #include <gdk/gdk.h> | |
| 8 #include <gdk/gdkkeysyms.h> | |
| 9 #include <gtk/gtk.h> | |
| 10 | |
| 11 #include <algorithm> | |
| 12 | |
| 13 #include "base/strings/string_util.h" | |
| 14 #include "base/strings/utf_string_conversions.h" | |
| 15 #include "build/build_config.h" | |
| 16 #include "content/browser/frame_host/interstitial_page_impl.h" | |
| 17 #include "content/browser/renderer_host/render_view_host_factory.h" | |
| 18 #include "content/browser/renderer_host/render_view_host_impl.h" | |
| 19 #include "content/browser/renderer_host/render_widget_host_view_gtk.h" | |
| 20 #include "content/browser/web_contents/web_contents_impl.h" | |
| 21 #include "content/browser/web_contents/web_drag_dest_gtk.h" | |
| 22 #include "content/browser/web_contents/web_drag_source_gtk.h" | |
| 23 #include "content/public/browser/web_contents_delegate.h" | |
| 24 #include "content/public/browser/web_contents_view_delegate.h" | |
| 25 #include "content/public/common/drop_data.h" | |
| 26 #include "ui/base/gtk/gtk_expanded_container.h" | |
| 27 #include "ui/gfx/image/image_skia.h" | |
| 28 #include "ui/gfx/point.h" | |
| 29 #include "ui/gfx/rect.h" | |
| 30 #include "ui/gfx/size.h" | |
| 31 | |
| 32 using blink::WebDragOperation; | |
| 33 using blink::WebDragOperationsMask; | |
| 34 | |
| 35 namespace content { | |
| 36 namespace { | |
| 37 | |
| 38 // Called when the mouse leaves the widget. We notify our delegate. | |
| 39 gboolean OnLeaveNotify(GtkWidget* widget, GdkEventCrossing* event, | |
| 40 WebContentsImpl* web_contents) { | |
| 41 if (web_contents->GetDelegate()) | |
| 42 web_contents->GetDelegate()->ContentsMouseEvent( | |
| 43 web_contents, gfx::Point(event->x_root, event->y_root), false); | |
| 44 return FALSE; | |
| 45 } | |
| 46 | |
| 47 // Called when the mouse moves within the widget. We notify our delegate. | |
| 48 gboolean OnMouseMove(GtkWidget* widget, GdkEventMotion* event, | |
| 49 WebContentsImpl* web_contents) { | |
| 50 if (web_contents->GetDelegate()) | |
| 51 web_contents->GetDelegate()->ContentsMouseEvent( | |
| 52 web_contents, gfx::Point(event->x_root, event->y_root), true); | |
| 53 return FALSE; | |
| 54 } | |
| 55 | |
| 56 // See tab_contents_view_views.cc for discussion of mouse scroll zooming. | |
| 57 gboolean OnMouseScroll(GtkWidget* widget, GdkEventScroll* event, | |
| 58 WebContentsImpl* web_contents) { | |
| 59 if ((event->state & gtk_accelerator_get_default_mod_mask()) != | |
| 60 GDK_CONTROL_MASK) { | |
| 61 return FALSE; | |
| 62 } | |
| 63 | |
| 64 WebContentsDelegate* delegate = web_contents->GetDelegate(); | |
| 65 if (!delegate) | |
| 66 return FALSE; | |
| 67 | |
| 68 if (!(event->direction == GDK_SCROLL_DOWN || | |
| 69 event->direction == GDK_SCROLL_UP)) { | |
| 70 return FALSE; | |
| 71 } | |
| 72 | |
| 73 delegate->ContentsZoomChange(event->direction == GDK_SCROLL_UP); | |
| 74 return TRUE; | |
| 75 } | |
| 76 | |
| 77 } // namespace | |
| 78 | |
| 79 WebContentsViewPort* CreateWebContentsView( | |
| 80 WebContentsImpl* web_contents, | |
| 81 WebContentsViewDelegate* delegate, | |
| 82 RenderViewHostDelegateView** render_view_host_delegate_view) { | |
| 83 WebContentsViewGtk* rv = new WebContentsViewGtk(web_contents, delegate); | |
| 84 *render_view_host_delegate_view = rv; | |
| 85 return rv; | |
| 86 } | |
| 87 | |
| 88 WebContentsViewGtk::WebContentsViewGtk( | |
| 89 WebContentsImpl* web_contents, | |
| 90 WebContentsViewDelegate* delegate) | |
| 91 : web_contents_(web_contents), | |
| 92 expanded_(gtk_expanded_container_new()), | |
| 93 delegate_(delegate) { | |
| 94 gtk_widget_set_name(expanded_.get(), "chrome-web-contents-view"); | |
| 95 g_signal_connect(expanded_.get(), "size-allocate", | |
| 96 G_CALLBACK(OnSizeAllocateThunk), this); | |
| 97 g_signal_connect(expanded_.get(), "child-size-request", | |
| 98 G_CALLBACK(OnChildSizeRequestThunk), this); | |
| 99 | |
| 100 gtk_widget_show(expanded_.get()); | |
| 101 drag_source_.reset(new WebDragSourceGtk(web_contents)); | |
| 102 | |
| 103 if (delegate_) | |
| 104 delegate_->Initialize(expanded_.get(), &focus_store_); | |
| 105 } | |
| 106 | |
| 107 WebContentsViewGtk::~WebContentsViewGtk() { | |
| 108 expanded_.Destroy(); | |
| 109 } | |
| 110 | |
| 111 gfx::NativeView WebContentsViewGtk::GetNativeView() const { | |
| 112 if (delegate_) | |
| 113 return delegate_->GetNativeView(); | |
| 114 | |
| 115 return expanded_.get(); | |
| 116 } | |
| 117 | |
| 118 gfx::NativeView WebContentsViewGtk::GetContentNativeView() const { | |
| 119 RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView(); | |
| 120 if (!rwhv) | |
| 121 return NULL; | |
| 122 return rwhv->GetNativeView(); | |
| 123 } | |
| 124 | |
| 125 gfx::NativeWindow WebContentsViewGtk::GetTopLevelNativeWindow() const { | |
| 126 GtkWidget* window = gtk_widget_get_ancestor(GetNativeView(), GTK_TYPE_WINDOW); | |
| 127 return window ? GTK_WINDOW(window) : NULL; | |
| 128 } | |
| 129 | |
| 130 void WebContentsViewGtk::GetContainerBounds(gfx::Rect* out) const { | |
| 131 // This is used for positioning the download shelf arrow animation, | |
| 132 // as well as sizing some other widgets in Windows. In GTK the size is | |
| 133 // managed for us, so it appears to be only used for the download shelf | |
| 134 // animation. | |
| 135 int x = 0; | |
| 136 int y = 0; | |
| 137 GdkWindow* expanded_window = gtk_widget_get_window(expanded_.get()); | |
| 138 if (expanded_window) | |
| 139 gdk_window_get_origin(expanded_window, &x, &y); | |
| 140 | |
| 141 GtkAllocation allocation; | |
| 142 gtk_widget_get_allocation(expanded_.get(), &allocation); | |
| 143 out->SetRect(x + allocation.x, y + allocation.y, | |
| 144 requested_size_.width(), requested_size_.height()); | |
| 145 } | |
| 146 | |
| 147 void WebContentsViewGtk::OnTabCrashed(base::TerminationStatus status, | |
| 148 int error_code) { | |
| 149 } | |
| 150 | |
| 151 void WebContentsViewGtk::Focus() { | |
| 152 if (web_contents_->ShowingInterstitialPage()) { | |
| 153 web_contents_->GetInterstitialPage()->Focus(); | |
| 154 } else if (delegate_) { | |
| 155 delegate_->Focus(); | |
| 156 } | |
| 157 } | |
| 158 | |
| 159 void WebContentsViewGtk::SetInitialFocus() { | |
| 160 if (web_contents_->FocusLocationBarByDefault()) | |
| 161 web_contents_->SetFocusToLocationBar(false); | |
| 162 else | |
| 163 Focus(); | |
| 164 } | |
| 165 | |
| 166 void WebContentsViewGtk::StoreFocus() { | |
| 167 focus_store_.Store(GetNativeView()); | |
| 168 } | |
| 169 | |
| 170 void WebContentsViewGtk::RestoreFocus() { | |
| 171 if (focus_store_.widget()) | |
| 172 gtk_widget_grab_focus(focus_store_.widget()); | |
| 173 else | |
| 174 SetInitialFocus(); | |
| 175 } | |
| 176 | |
| 177 DropData* WebContentsViewGtk::GetDropData() const { | |
| 178 if (!drag_dest_) | |
| 179 return NULL; | |
| 180 return drag_dest_->current_drop_data(); | |
| 181 } | |
| 182 | |
| 183 gfx::Rect WebContentsViewGtk::GetViewBounds() const { | |
| 184 gfx::Rect rect; | |
| 185 GdkWindow* window = gtk_widget_get_window(GetNativeView()); | |
| 186 if (!window) { | |
| 187 rect.SetRect(0, 0, requested_size_.width(), requested_size_.height()); | |
| 188 return rect; | |
| 189 } | |
| 190 int x = 0, y = 0, w, h; | |
| 191 gdk_window_get_geometry(window, &x, &y, &w, &h, NULL); | |
| 192 rect.SetRect(x, y, w, h); | |
| 193 return rect; | |
| 194 } | |
| 195 | |
| 196 void WebContentsViewGtk::CreateView( | |
| 197 const gfx::Size& initial_size, gfx::NativeView context) { | |
| 198 requested_size_ = initial_size; | |
| 199 } | |
| 200 | |
| 201 RenderWidgetHostView* WebContentsViewGtk::CreateViewForWidget( | |
| 202 RenderWidgetHost* render_widget_host) { | |
| 203 if (render_widget_host->GetView()) { | |
| 204 // During testing, the view will already be set up in most cases to the | |
| 205 // test view, so we don't want to clobber it with a real one. To verify that | |
| 206 // this actually is happening (and somebody isn't accidentally creating the | |
| 207 // view twice), we check for the RVH Factory, which will be set when we're | |
| 208 // making special ones (which go along with the special views). | |
| 209 DCHECK(RenderViewHostFactory::has_factory()); | |
| 210 return render_widget_host->GetView(); | |
| 211 } | |
| 212 | |
| 213 RenderWidgetHostView* view = | |
| 214 RenderWidgetHostView::CreateViewForWidget(render_widget_host); | |
| 215 view->InitAsChild(NULL); | |
| 216 gfx::NativeView content_view = view->GetNativeView(); | |
| 217 g_signal_connect(content_view, "focus", G_CALLBACK(OnFocusThunk), this); | |
| 218 g_signal_connect(content_view, "leave-notify-event", | |
| 219 G_CALLBACK(OnLeaveNotify), web_contents_); | |
| 220 g_signal_connect(content_view, "motion-notify-event", | |
| 221 G_CALLBACK(OnMouseMove), web_contents_); | |
| 222 g_signal_connect(content_view, "scroll-event", | |
| 223 G_CALLBACK(OnMouseScroll), web_contents_); | |
| 224 gtk_widget_add_events(content_view, GDK_LEAVE_NOTIFY_MASK | | |
| 225 GDK_POINTER_MOTION_MASK); | |
| 226 InsertIntoContentArea(content_view); | |
| 227 | |
| 228 if (render_widget_host->IsRenderView()) { | |
| 229 RenderViewHost* rvh = RenderViewHost::From(render_widget_host); | |
| 230 // If |rvh| is already the current render view host for the web contents, we | |
| 231 // need to initialize |drag_dest_| for drags to be properly handled. | |
| 232 // Otherwise, |drag_dest_| will be updated in RenderViewSwappedIn. The | |
| 233 // reason we can't simply check that this isn't a swapped-out view is | |
| 234 // because there are navigations that create non-swapped-out views that may | |
| 235 // never be displayed, e.g. a navigation that becomes a download. | |
| 236 if (rvh == web_contents_->GetRenderViewHost()) { | |
| 237 UpdateDragDest(rvh); | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 return view; | |
| 242 } | |
| 243 | |
| 244 RenderWidgetHostView* WebContentsViewGtk::CreateViewForPopupWidget( | |
| 245 RenderWidgetHost* render_widget_host) { | |
| 246 return RenderWidgetHostViewPort::CreateViewForWidget(render_widget_host); | |
| 247 } | |
| 248 | |
| 249 void WebContentsViewGtk::SetPageTitle(const base::string16& title) { | |
| 250 // Set the window name to include the page title so it's easier to spot | |
| 251 // when debugging (e.g. via xwininfo -tree). | |
| 252 gfx::NativeView content_view = GetContentNativeView(); | |
| 253 if (content_view) { | |
| 254 GdkWindow* content_window = gtk_widget_get_window(content_view); | |
| 255 if (content_window) { | |
| 256 gdk_window_set_title(content_window, base::UTF16ToUTF8(title).c_str()); | |
| 257 } | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 void WebContentsViewGtk::SizeContents(const gfx::Size& size) { | |
| 262 // We don't need to manually set the size of of widgets in GTK+, but we do | |
| 263 // need to pass the sizing information on to the RWHV which will pass the | |
| 264 // sizing information on to the renderer. | |
| 265 requested_size_ = size; | |
| 266 RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView(); | |
| 267 if (rwhv) | |
| 268 rwhv->SetSize(size); | |
| 269 } | |
| 270 | |
| 271 void WebContentsViewGtk::RenderViewCreated(RenderViewHost* host) { | |
| 272 } | |
| 273 | |
| 274 void WebContentsViewGtk::RenderViewSwappedIn(RenderViewHost* host) { | |
| 275 UpdateDragDest(host); | |
| 276 } | |
| 277 | |
| 278 void WebContentsViewGtk::SetOverscrollControllerEnabled(bool enabled) { | |
| 279 } | |
| 280 | |
| 281 WebContents* WebContentsViewGtk::web_contents() { | |
| 282 return web_contents_; | |
| 283 } | |
| 284 | |
| 285 void WebContentsViewGtk::UpdateDragCursor(WebDragOperation operation) { | |
| 286 if (!drag_dest_) | |
| 287 return; | |
| 288 drag_dest_->UpdateDragStatus(operation); | |
| 289 } | |
| 290 | |
| 291 void WebContentsViewGtk::GotFocus() { | |
| 292 // This is only used in the views FocusManager stuff but it bleeds through | |
| 293 // all subclasses. http://crbug.com/21875 | |
| 294 } | |
| 295 | |
| 296 // This is called when the renderer asks us to take focus back (i.e., it has | |
| 297 // iterated past the last focusable element on the page). | |
| 298 void WebContentsViewGtk::TakeFocus(bool reverse) { | |
| 299 if (!web_contents_->GetDelegate()) | |
| 300 return; | |
| 301 if (!web_contents_->GetDelegate()->TakeFocus(web_contents_, reverse) && | |
| 302 GetTopLevelNativeWindow()) { | |
| 303 gtk_widget_child_focus(GTK_WIDGET(GetTopLevelNativeWindow()), | |
| 304 reverse ? GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD); | |
| 305 } | |
| 306 } | |
| 307 | |
| 308 void WebContentsViewGtk::InsertIntoContentArea(GtkWidget* widget) { | |
| 309 gtk_container_add(GTK_CONTAINER(expanded_.get()), widget); | |
| 310 } | |
| 311 | |
| 312 void WebContentsViewGtk::UpdateDragDest(RenderViewHost* host) { | |
| 313 // Drag-and-drop is entirely managed by BrowserPluginGuest for guest | |
| 314 // processes in a largely platform independent way. WebDragDestGtk | |
| 315 // will result in spurious messages being sent to the guest process which | |
| 316 // will violate assumptions. | |
| 317 if (host->GetProcess() && host->GetProcess()->IsGuest()) { | |
| 318 DCHECK(!drag_dest_); | |
| 319 return; | |
| 320 } | |
| 321 | |
| 322 gfx::NativeView content_view = host->GetView()->GetNativeView(); | |
| 323 | |
| 324 // If the host is already used by the drag_dest_, there's no point in deleting | |
| 325 // the old one to create an identical copy. | |
| 326 if (drag_dest_.get() && drag_dest_->widget() == content_view) | |
| 327 return; | |
| 328 | |
| 329 // Clear the currently connected drag drop signals by deleting the old | |
| 330 // drag_dest_ before creating the new one. | |
| 331 drag_dest_.reset(); | |
| 332 // Create the new drag_dest_. | |
| 333 drag_dest_.reset(new WebDragDestGtk(web_contents_, content_view)); | |
| 334 | |
| 335 if (delegate_) | |
| 336 drag_dest_->set_delegate(delegate_->GetDragDestDelegate()); | |
| 337 } | |
| 338 | |
| 339 // Called when the content view gtk widget is tabbed to, or after the call to | |
| 340 // gtk_widget_child_focus() in TakeFocus(). We return true | |
| 341 // and grab focus if we don't have it. The call to | |
| 342 // FocusThroughTabTraversal(bool) forwards the "move focus forward" effect to | |
| 343 // webkit. | |
| 344 gboolean WebContentsViewGtk::OnFocus(GtkWidget* widget, | |
| 345 GtkDirectionType focus) { | |
| 346 // Give our view wrapper first chance at this event. | |
| 347 if (delegate_) { | |
| 348 gboolean return_value = FALSE; | |
| 349 if (delegate_->OnNativeViewFocusEvent(widget, focus, &return_value)) | |
| 350 return return_value; | |
| 351 } | |
| 352 | |
| 353 // If we already have focus, let the next widget have a shot at it. We will | |
| 354 // reach this situation after the call to gtk_widget_child_focus() in | |
| 355 // TakeFocus(). | |
| 356 if (gtk_widget_is_focus(widget)) | |
| 357 return FALSE; | |
| 358 | |
| 359 gtk_widget_grab_focus(widget); | |
| 360 bool reverse = focus == GTK_DIR_TAB_BACKWARD; | |
| 361 web_contents_->FocusThroughTabTraversal(reverse); | |
| 362 return TRUE; | |
| 363 } | |
| 364 | |
| 365 void WebContentsViewGtk::ShowContextMenu(RenderFrameHost* render_frame_host, | |
| 366 const ContextMenuParams& params) { | |
| 367 if (delegate_) | |
| 368 delegate_->ShowContextMenu(render_frame_host, params); | |
| 369 else | |
| 370 DLOG(ERROR) << "Cannot show context menus without a delegate."; | |
| 371 } | |
| 372 | |
| 373 // Render view DnD ------------------------------------------------------------- | |
| 374 | |
| 375 void WebContentsViewGtk::StartDragging(const DropData& drop_data, | |
| 376 WebDragOperationsMask ops, | |
| 377 const gfx::ImageSkia& image, | |
| 378 const gfx::Vector2d& image_offset, | |
| 379 const DragEventSourceInfo& event_info) { | |
| 380 DCHECK(GetContentNativeView()); | |
| 381 | |
| 382 RenderWidgetHostViewGtk* view_gtk = static_cast<RenderWidgetHostViewGtk*>( | |
| 383 web_contents_->GetRenderWidgetHostView()); | |
| 384 if (!view_gtk || !view_gtk->GetLastMouseDown() || | |
| 385 !drag_source_->StartDragging(drop_data, ops, view_gtk->GetLastMouseDown(), | |
| 386 *image.bitmap(), image_offset)) { | |
| 387 web_contents_->SystemDragEnded(); | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 // ----------------------------------------------------------------------------- | |
| 392 | |
| 393 void WebContentsViewGtk::OnChildSizeRequest(GtkWidget* widget, | |
| 394 GtkWidget* child, | |
| 395 GtkRequisition* requisition) { | |
| 396 if (web_contents_->GetDelegate()) { | |
| 397 requisition->height += | |
| 398 web_contents_->GetDelegate()->GetExtraRenderViewHeight(); | |
| 399 } | |
| 400 } | |
| 401 | |
| 402 void WebContentsViewGtk::OnSizeAllocate(GtkWidget* widget, | |
| 403 GtkAllocation* allocation) { | |
| 404 int width = allocation->width; | |
| 405 int height = allocation->height; | |
| 406 // |delegate()| can be NULL here during browser teardown. | |
| 407 if (web_contents_->GetDelegate()) | |
| 408 height += web_contents_->GetDelegate()->GetExtraRenderViewHeight(); | |
| 409 gfx::Size size(width, height); | |
| 410 requested_size_ = size; | |
| 411 | |
| 412 // We manually tell our RWHV to resize the renderer content. This avoids | |
| 413 // spurious resizes from GTK+. | |
| 414 RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView(); | |
| 415 if (rwhv) | |
| 416 rwhv->SetSize(size); | |
| 417 if (web_contents_->GetInterstitialPage()) | |
| 418 web_contents_->GetInterstitialPage()->SetSize(size); | |
| 419 } | |
| 420 | |
| 421 } // namespace content | |
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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