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Unified Diff: chrome/browser/renderer_host/render_widget_host_view_gtk.cc

Issue 7669040: content: Move render_widget_host_view_gtk to content/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: chromeos fix. Created 9 years, 4 months ago
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Index: chrome/browser/renderer_host/render_widget_host_view_gtk.cc
diff --git a/chrome/browser/renderer_host/render_widget_host_view_gtk.cc b/chrome/browser/renderer_host/render_widget_host_view_gtk.cc
deleted file mode 100644
index 8f46c9f538ef2d768ddaa4811151e437ccb545cb..0000000000000000000000000000000000000000
--- a/chrome/browser/renderer_host/render_widget_host_view_gtk.cc
+++ /dev/null
@@ -1,1209 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
-
-// If this gets included after the gtk headers, then a bunch of compiler
-// errors happen because of a "#define Status int" in Xlib.h, which interacts
-// badly with net::URLRequestStatus::Status.
-#include "chrome/common/render_messages.h"
-#include "content/common/view_messages.h"
-
-#include <cairo/cairo.h>
-#include <gdk/gdk.h>
-#include <gdk/gdkkeysyms.h>
-#include <gdk/gdkx.h>
-#include <gtk/gtk.h>
-
-#include <algorithm>
-#include <string>
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/message_loop.h"
-#include "base/metrics/histogram.h"
-#include "base/string_number_conversions.h"
-#include "base/time.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/browser/renderer_host/gtk_im_context_wrapper.h"
-#include "chrome/browser/ui/gtk/gtk_util.h"
-#include "chrome/common/chrome_switches.h"
-#include "content/browser/renderer_host/backing_store_x.h"
-#include "content/browser/renderer_host/render_view_host.h"
-#include "content/browser/renderer_host/render_view_host_delegate.h"
-#include "content/browser/renderer_host/render_widget_host.h"
-#include "content/common/native_web_keyboard_event.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/gtk/WebInputEventFactory.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/x/x11_util.h"
-#include "ui/gfx/gtk_preserve_window.h"
-#include "ui/gfx/gtk_native_view_id_manager.h"
-#include "webkit/glue/webaccessibility.h"
-#include "webkit/glue/webcursor_gtk_data.h"
-#include "webkit/plugins/npapi/webplugin.h"
-
-#if defined(OS_CHROMEOS)
-#include "views/widget/tooltip_window_gtk.h"
-#else
-#include "chrome/browser/renderer_host/gtk_key_bindings_handler.h"
-#endif // defined(OS_CHROMEOS)
-
-namespace {
-
-const int kMaxWindowWidth = 4000;
-const int kMaxWindowHeight = 4000;
-const char* kRenderWidgetHostViewKey = "__RENDER_WIDGET_HOST_VIEW__";
-
-// The duration of the fade-out animation. See |overlay_animation_|.
-const int kFadeEffectDuration = 300;
-
-#if defined(OS_CHROMEOS)
-// TODO(davemoore) Under Chromeos we are increasing the rate that the trackpad
-// generates events to get better precisions. Eventually we will coordinate the
-// driver and this setting to ensure they match.
-const float kDefaultScrollPixelsPerTick = 20;
-#else
-// See WebInputEventFactor.cpp for a reason for this being the default
-// scroll size for linux.
-const float kDefaultScrollPixelsPerTick = 160.0f / 3.0f;
-#endif
-
-// Returns the spinning cursor used for loading state.
-GdkCursor* GetMozSpinningCursor() {
- static GdkCursor* moz_spinning_cursor = NULL;
- if (!moz_spinning_cursor) {
- const GdkColor fg = { 0, 0, 0, 0 };
- const GdkColor bg = { 65535, 65535, 65535, 65535 };
- GdkPixmap* source =
- gdk_bitmap_create_from_data(NULL, moz_spinning_bits, 32, 32);
- GdkPixmap* mask =
- gdk_bitmap_create_from_data(NULL, moz_spinning_mask_bits, 32, 32);
- moz_spinning_cursor =
- gdk_cursor_new_from_pixmap(source, mask, &fg, &bg, 2, 2);
- g_object_unref(source);
- g_object_unref(mask);
- }
- return moz_spinning_cursor;
-}
-
-} // namespace
-
-using WebKit::WebInputEventFactory;
-using WebKit::WebMouseWheelEvent;
-
-// This class is a simple convenience wrapper for Gtk functions. It has only
-// static methods.
-class RenderWidgetHostViewGtkWidget {
- public:
- static GtkWidget* CreateNewWidget(RenderWidgetHostViewGtk* host_view) {
- GtkWidget* widget = gtk_preserve_window_new();
- gtk_widget_set_name(widget, "chrome-render-widget-host-view");
- // We manually double-buffer in Paint() because Paint() may or may not be
- // called in repsonse to an "expose-event" signal.
- gtk_widget_set_double_buffered(widget, FALSE);
- gtk_widget_set_redraw_on_allocate(widget, FALSE);
-#if defined(NDEBUG)
- gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &gtk_util::kGdkWhite);
-#else
- gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &gtk_util::kGdkGreen);
-#endif
- // Allow the browser window to be resized freely.
- gtk_widget_set_size_request(widget, 0, 0);
-
- gtk_widget_add_events(widget, GDK_EXPOSURE_MASK |
- GDK_POINTER_MOTION_MASK |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_KEY_PRESS_MASK |
- GDK_KEY_RELEASE_MASK |
- GDK_FOCUS_CHANGE_MASK |
- GDK_ENTER_NOTIFY_MASK |
- GDK_LEAVE_NOTIFY_MASK);
- gtk_widget_set_can_focus(widget, TRUE);
-
- g_signal_connect(widget, "expose-event",
- G_CALLBACK(OnExposeEvent), host_view);
- g_signal_connect(widget, "key-press-event",
- G_CALLBACK(OnKeyPressReleaseEvent), host_view);
- g_signal_connect(widget, "key-release-event",
- G_CALLBACK(OnKeyPressReleaseEvent), host_view);
- g_signal_connect(widget, "focus-in-event",
- G_CALLBACK(OnFocusIn), host_view);
- g_signal_connect(widget, "focus-out-event",
- G_CALLBACK(OnFocusOut), host_view);
- g_signal_connect(widget, "grab-notify",
- G_CALLBACK(OnGrabNotify), host_view);
- g_signal_connect(widget, "button-press-event",
- G_CALLBACK(OnButtonPressReleaseEvent), host_view);
- g_signal_connect(widget, "button-release-event",
- G_CALLBACK(OnButtonPressReleaseEvent), host_view);
- g_signal_connect(widget, "motion-notify-event",
- G_CALLBACK(OnMouseMoveEvent), host_view);
- g_signal_connect(widget, "enter-notify-event",
- G_CALLBACK(OnCrossingEvent), host_view);
- g_signal_connect(widget, "leave-notify-event",
- G_CALLBACK(OnCrossingEvent), host_view);
- g_signal_connect(widget, "client-event",
- G_CALLBACK(OnClientEvent), host_view);
-
-
- // Connect after so that we are called after the handler installed by the
- // TabContentsView which handles zoom events.
- g_signal_connect_after(widget, "scroll-event",
- G_CALLBACK(OnMouseScrollEvent), host_view);
-
- g_object_set_data(G_OBJECT(widget), kRenderWidgetHostViewKey,
- static_cast<RenderWidgetHostView*>(host_view));
-
- return widget;
- }
-
- private:
- static gboolean OnExposeEvent(GtkWidget* widget,
- GdkEventExpose* expose,
- RenderWidgetHostViewGtk* host_view) {
- if (host_view->is_hidden_)
- return FALSE;
- const gfx::Rect damage_rect(expose->area);
- host_view->Paint(damage_rect);
- return FALSE;
- }
-
- static gboolean OnKeyPressReleaseEvent(GtkWidget* widget,
- GdkEventKey* event,
- RenderWidgetHostViewGtk* host_view) {
- // Force popups or fullscreen windows to close on Escape so they won't keep
- // the keyboard grabbed or be stuck onscreen if the renderer is hanging.
- bool should_close_on_escape =
- (host_view->IsPopup() && host_view->NeedsInputGrab()) ||
- host_view->is_fullscreen_;
- if (should_close_on_escape && GDK_Escape == event->keyval) {
- host_view->host_->Shutdown();
- } else {
- // Send key event to input method.
- host_view->im_context_->ProcessKeyEvent(event);
- }
-
- // We return TRUE because we did handle the event. If it turns out webkit
- // can't handle the event, we'll deal with it in
- // RenderView::UnhandledKeyboardEvent().
- return TRUE;
- }
-
- static gboolean OnFocusIn(GtkWidget* widget,
- GdkEventFocus* focus,
- RenderWidgetHostViewGtk* host_view) {
- host_view->ShowCurrentCursor();
- host_view->GetRenderWidgetHost()->GotFocus();
-
- // The only way to enable a GtkIMContext object is to call its focus in
- // handler.
- host_view->im_context_->OnFocusIn();
-
- return TRUE;
- }
-
- static gboolean OnFocusOut(GtkWidget* widget,
- GdkEventFocus* focus,
- RenderWidgetHostViewGtk* host_view) {
- // Whenever we lose focus, set the cursor back to that of our parent window,
- // which should be the default arrow.
- gdk_window_set_cursor(widget->window, NULL);
- // If we are showing a context menu, maintain the illusion that webkit has
- // focus.
- if (!host_view->is_showing_context_menu_)
- host_view->GetRenderWidgetHost()->Blur();
-
- // Prevents us from stealing input context focus in OnGrabNotify() handler.
- host_view->was_imcontext_focused_before_grab_ = false;
-
- // Disable the GtkIMContext object.
- host_view->im_context_->OnFocusOut();
-
- return TRUE;
- }
-
- // Called when we are shadowed or unshadowed by a keyboard grab (which will
- // occur for activatable popups, such as dropdown menus). Popup windows do not
- // take focus, so we never get a focus out or focus in event when they are
- // shown, and must rely on this signal instead.
- static void OnGrabNotify(GtkWidget* widget, gboolean was_grabbed,
- RenderWidgetHostViewGtk* host_view) {
- if (was_grabbed) {
- if (host_view->was_imcontext_focused_before_grab_)
- host_view->im_context_->OnFocusIn();
- } else {
- host_view->was_imcontext_focused_before_grab_ =
- host_view->im_context_->is_focused();
- if (host_view->was_imcontext_focused_before_grab_) {
- gdk_window_set_cursor(widget->window, NULL);
- host_view->im_context_->OnFocusOut();
- }
- }
- }
-
- static gboolean OnButtonPressReleaseEvent(
- GtkWidget* widget,
- GdkEventButton* event,
- RenderWidgetHostViewGtk* host_view) {
-#if defined (OS_CHROMEOS)
- // We support buttons 8 & 9 for scrolling with an attached USB mouse
- // in ChromeOS. We do this separately from the builtin scrolling support
- // because we want to support the user's expectations about the amount
- // scrolled on each event. xorg.conf on chromeos specifies buttons
- // 8 & 9 for the scroll wheel for the attached USB mouse.
- if (event->type == GDK_BUTTON_RELEASE &&
- (event->button == 8 || event->button == 9)) {
- GdkEventScroll scroll_event;
- scroll_event.type = GDK_SCROLL;
- scroll_event.window = event->window;
- scroll_event.send_event = event->send_event;
- scroll_event.time = event->time;
- scroll_event.x = event->x;
- scroll_event.y = event->y;
- scroll_event.state = event->state;
- if (event->state & GDK_SHIFT_MASK) {
- scroll_event.direction =
- event->button == 8 ? GDK_SCROLL_LEFT : GDK_SCROLL_RIGHT;
- } else {
- scroll_event.direction =
- event->button == 8 ? GDK_SCROLL_UP : GDK_SCROLL_DOWN;
- }
- scroll_event.device = event->device;
- scroll_event.x_root = event->x_root;
- scroll_event.y_root = event->y_root;
- WebMouseWheelEvent web_event =
- WebInputEventFactory::mouseWheelEvent(&scroll_event);
- host_view->GetRenderWidgetHost()->ForwardWheelEvent(web_event);
- }
-#endif
-
- if (event->type != GDK_BUTTON_RELEASE)
- host_view->set_last_mouse_down(event);
-
- if (!(event->button == 1 || event->button == 2 || event->button == 3))
- return FALSE; // We do not forward any other buttons to the renderer.
- if (event->type == GDK_2BUTTON_PRESS || event->type == GDK_3BUTTON_PRESS)
- return FALSE;
-
- // If we don't have focus already, this mouse click will focus us.
- if (!gtk_widget_is_focus(widget))
- host_view->host_->OnMouseActivate();
-
- // Confirm existing composition text on mouse click events, to make sure
- // the input caret won't be moved with an ongoing composition session.
- if (event->type != GDK_BUTTON_RELEASE)
- host_view->im_context_->ConfirmComposition();
-
- // We want to translate the coordinates of events that do not originate
- // from this widget to be relative to the top left of the widget.
- GtkWidget* event_widget = gtk_get_event_widget(
- reinterpret_cast<GdkEvent*>(event));
- if (event_widget != widget) {
- int x = 0;
- int y = 0;
- gtk_widget_get_pointer(widget, &x, &y);
- // If the mouse event happens outside our popup, force the popup to
- // close. We do this so a hung renderer doesn't prevent us from
- // releasing the x pointer grab.
- bool click_in_popup = x >= 0 && y >= 0 && x < widget->allocation.width &&
- y < widget->allocation.height;
- // Only Shutdown on mouse downs. Mouse ups can occur outside the render
- // view if the user drags for DnD or while using the scrollbar on a select
- // dropdown. Don't shutdown if we are not a popup.
- if (event->type != GDK_BUTTON_RELEASE && host_view->IsPopup() &&
- !host_view->is_popup_first_mouse_release_ && !click_in_popup) {
- host_view->host_->Shutdown();
- return FALSE;
- }
- event->x = x;
- event->y = y;
- }
-
- // TODO(evanm): why is this necessary here but not in test shell?
- // This logic is the same as GtkButton.
- if (event->type == GDK_BUTTON_PRESS && !gtk_widget_has_focus(widget))
- gtk_widget_grab_focus(widget);
-
- host_view->is_popup_first_mouse_release_ = false;
- host_view->GetRenderWidgetHost()->ForwardMouseEvent(
- WebInputEventFactory::mouseEvent(event));
-
- // Although we did handle the mouse event, we need to let other handlers
- // run (in particular the one installed by TabContentsViewGtk).
- return FALSE;
- }
-
- static gboolean OnMouseMoveEvent(GtkWidget* widget,
- GdkEventMotion* event,
- RenderWidgetHostViewGtk* host_view) {
- // We want to translate the coordinates of events that do not originate
- // from this widget to be relative to the top left of the widget.
- GtkWidget* event_widget = gtk_get_event_widget(
- reinterpret_cast<GdkEvent*>(event));
- if (event_widget != widget) {
- int x = 0;
- int y = 0;
- gtk_widget_get_pointer(widget, &x, &y);
- event->x = x;
- event->y = y;
- }
-
- host_view->ModifyEventForEdgeDragging(widget, event);
- host_view->GetRenderWidgetHost()->ForwardMouseEvent(
- WebInputEventFactory::mouseEvent(event));
- return FALSE;
- }
-
- static gboolean OnCrossingEvent(GtkWidget* widget,
- GdkEventCrossing* event,
- RenderWidgetHostViewGtk* host_view) {
- const int any_button_mask =
- GDK_BUTTON1_MASK |
- GDK_BUTTON2_MASK |
- GDK_BUTTON3_MASK |
- GDK_BUTTON4_MASK |
- GDK_BUTTON5_MASK;
-
- // Only forward crossing events if the mouse button is not down.
- // (When the mouse button is down, the proper events are already being
- // sent by ButtonPressReleaseEvent and MouseMoveEvent, above, and if we
- // additionally send this crossing event with the state indicating the
- // button is down, it causes problems with drag and drop in WebKit.)
- if (!(event->state & any_button_mask)) {
- host_view->GetRenderWidgetHost()->ForwardMouseEvent(
- WebInputEventFactory::mouseEvent(event));
- }
-
- return FALSE;
- }
-
- static gboolean OnClientEvent(GtkWidget* widget,
- GdkEventClient* event,
- RenderWidgetHostViewGtk* host_view) {
- VLOG(1) << "client event type: " << event->message_type
- << " data_format: " << event->data_format
- << " data: " << event->data.l;
- return TRUE;
- }
-
- // Allow the vertical scroll delta to be overridden from the command line.
- // This will allow us to test more easily to discover the amount
- // (either hard coded or computed) that's best.
- static float GetScrollPixelsPerTick() {
- static float scroll_pixels = -1;
- if (scroll_pixels < 0) {
- // TODO(brettw): Remove the command line switch (crbug.com/63525)
- scroll_pixels = kDefaultScrollPixelsPerTick;
- CommandLine* command_line = CommandLine::ForCurrentProcess();
- std::string scroll_pixels_option =
- command_line->GetSwitchValueASCII(switches::kScrollPixels);
- if (!scroll_pixels_option.empty()) {
- double v;
- if (base::StringToDouble(scroll_pixels_option, &v))
- scroll_pixels = static_cast<float>(v);
- }
- DCHECK_GT(scroll_pixels, 0);
- }
- return scroll_pixels;
- }
-
- // Return the net up / down (or left / right) distance represented by events
- // in the events will be removed from the queue. We only look at the top of
- // queue...any other type of event will cause us not to look farther.
- // If there is a change to the set of modifier keys or scroll axis
- // in the events we will stop looking as well.
- static int GetPendingScrollDelta(bool vert, guint current_event_state) {
- int num_clicks = 0;
- GdkEvent* event;
- bool event_coalesced = true;
- while ((event = gdk_event_get()) && event_coalesced) {
- event_coalesced = false;
- if (event->type == GDK_SCROLL) {
- GdkEventScroll scroll = event->scroll;
- if (scroll.state & GDK_SHIFT_MASK) {
- if (scroll.direction == GDK_SCROLL_UP)
- scroll.direction = GDK_SCROLL_LEFT;
- else if (scroll.direction == GDK_SCROLL_DOWN)
- scroll.direction = GDK_SCROLL_RIGHT;
- }
- if (vert) {
- if (scroll.direction == GDK_SCROLL_UP ||
- scroll.direction == GDK_SCROLL_DOWN) {
- if (scroll.state == current_event_state) {
- num_clicks += (scroll.direction == GDK_SCROLL_UP ? 1 : -1);
- gdk_event_free(event);
- event_coalesced = true;
- }
- }
- } else {
- if (scroll.direction == GDK_SCROLL_LEFT ||
- scroll.direction == GDK_SCROLL_RIGHT) {
- if (scroll.state == current_event_state) {
- num_clicks += (scroll.direction == GDK_SCROLL_LEFT ? 1 : -1);
- gdk_event_free(event);
- event_coalesced = true;
- }
- }
- }
- }
- }
- // If we have an event left we put it back on the queue.
- if (event) {
- gdk_event_put(event);
- gdk_event_free(event);
- }
- return num_clicks * GetScrollPixelsPerTick();
- }
-
- static gboolean OnMouseScrollEvent(GtkWidget* widget,
- GdkEventScroll* event,
- RenderWidgetHostViewGtk* host_view) {
- // If the user is holding shift, translate it into a horizontal scroll. We
- // don't care what other modifiers the user may be holding (zooming is
- // handled at the TabContentsView level).
- if (event->state & GDK_SHIFT_MASK) {
- if (event->direction == GDK_SCROLL_UP)
- event->direction = GDK_SCROLL_LEFT;
- else if (event->direction == GDK_SCROLL_DOWN)
- event->direction = GDK_SCROLL_RIGHT;
- }
-
- WebMouseWheelEvent web_event = WebInputEventFactory::mouseWheelEvent(event);
- // We peek ahead at the top of the queue to look for additional pending
- // scroll events.
- if (event->direction == GDK_SCROLL_UP ||
- event->direction == GDK_SCROLL_DOWN) {
- if (event->direction == GDK_SCROLL_UP)
- web_event.deltaY = GetScrollPixelsPerTick();
- else
- web_event.deltaY = -GetScrollPixelsPerTick();
- web_event.deltaY += GetPendingScrollDelta(true, event->state);
- } else {
- if (event->direction == GDK_SCROLL_LEFT)
- web_event.deltaX = GetScrollPixelsPerTick();
- else
- web_event.deltaX = -GetScrollPixelsPerTick();
- web_event.deltaX += GetPendingScrollDelta(false, event->state);
- }
- host_view->GetRenderWidgetHost()->ForwardWheelEvent(web_event);
- return FALSE;
- }
-
- DISALLOW_IMPLICIT_CONSTRUCTORS(RenderWidgetHostViewGtkWidget);
-};
-
-// static
-RenderWidgetHostView* RenderWidgetHostView::CreateViewForWidget(
- RenderWidgetHost* widget) {
- return new RenderWidgetHostViewGtk(widget);
-}
-
-RenderWidgetHostViewGtk::RenderWidgetHostViewGtk(RenderWidgetHost* widget_host)
- : host_(widget_host),
- about_to_validate_and_paint_(false),
- is_hidden_(false),
- is_loading_(false),
- is_showing_context_menu_(false),
- overlay_color_(0),
- overlay_animation_(this),
- parent_(NULL),
- is_popup_first_mouse_release_(true),
- was_imcontext_focused_before_grab_(false),
- do_x_grab_(false),
- is_fullscreen_(false),
- destroy_handler_id_(0),
- dragged_at_horizontal_edge_(0),
- dragged_at_vertical_edge_(0),
- compositing_surface_(gfx::kNullPluginWindow),
- last_mouse_down_(NULL) {
- host_->SetView(this);
-}
-
-RenderWidgetHostViewGtk::~RenderWidgetHostViewGtk() {
- set_last_mouse_down(NULL);
- view_.Destroy();
-}
-
-void RenderWidgetHostViewGtk::InitAsChild() {
- DoSharedInit();
- overlay_animation_.SetDuration(kFadeEffectDuration);
- overlay_animation_.SetSlideDuration(kFadeEffectDuration);
- gtk_widget_show(view_.get());
-}
-
-void RenderWidgetHostViewGtk::InitAsPopup(
- RenderWidgetHostView* parent_host_view, const gfx::Rect& pos) {
- // If we aren't a popup, then |window| will be leaked.
- DCHECK(IsPopup());
-
- DoSharedInit();
- parent_ = parent_host_view->GetNativeView();
- GtkWindow* window = GTK_WINDOW(gtk_window_new(GTK_WINDOW_POPUP));
- gtk_container_add(GTK_CONTAINER(window), view_.get());
- DoPopupOrFullscreenInit(window, pos);
-
- // The underlying X window needs to be created and mapped by the above code
- // before we can grab the input devices.
- if (NeedsInputGrab()) {
- // Grab all input for the app. If a click lands outside the bounds of the
- // popup, WebKit will notice and destroy us. Before doing this we need
- // to ensure that the the popup is added to the browser's window group,
- // to allow for the grabs to work correctly.
- gtk_window_group_add_window(gtk_window_get_group(
- GTK_WINDOW(gtk_widget_get_toplevel(parent_))), window);
- gtk_grab_add(view_.get());
-
- // We need for the application to do an X grab as well. However if the app
- // already has an X grab (as in the case of extension popup), an app grab
- // will suffice.
- do_x_grab_ = !gdk_pointer_is_grabbed();
-
- // Now grab all of X's input.
- if (do_x_grab_) {
- gdk_pointer_grab(
- parent_->window,
- TRUE, // Only events outside of the window are reported with respect
- // to |parent_->window|.
- static_cast<GdkEventMask>(GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK),
- NULL,
- NULL,
- GDK_CURRENT_TIME);
- // We grab keyboard events too so things like alt+tab are eaten.
- gdk_keyboard_grab(parent_->window, TRUE, GDK_CURRENT_TIME);
- }
- }
-}
-
-void RenderWidgetHostViewGtk::InitAsFullscreen(
- RenderWidgetHostView* /*reference_host_view*/) {
- DoSharedInit();
-
- is_fullscreen_ = true;
- GtkWindow* window = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
- gtk_window_set_decorated(window, FALSE);
- gtk_window_fullscreen(window);
- g_signal_connect(GTK_WIDGET(window),
- "window-state-event",
- G_CALLBACK(&OnWindowStateEventThunk),
- this);
- destroy_handler_id_ = g_signal_connect(GTK_WIDGET(window),
- "destroy",
- G_CALLBACK(OnDestroyThunk),
- this);
- gtk_container_add(GTK_CONTAINER(window), view_.get());
-
- // Try to move and resize the window to cover the screen in case the window
- // manager doesn't support _NET_WM_STATE_FULLSCREEN.
- GdkScreen* screen = gtk_window_get_screen(window);
- gfx::Rect bounds(
- 0, 0, gdk_screen_get_width(screen), gdk_screen_get_height(screen));
- DoPopupOrFullscreenInit(window, bounds);
-}
-
-RenderWidgetHost* RenderWidgetHostViewGtk::GetRenderWidgetHost() const {
- return host_;
-}
-
-void RenderWidgetHostViewGtk::DidBecomeSelected() {
- if (!is_hidden_)
- return;
-
- if (tab_switch_paint_time_.is_null())
- tab_switch_paint_time_ = base::TimeTicks::Now();
- is_hidden_ = false;
- host_->WasRestored();
-}
-
-void RenderWidgetHostViewGtk::WasHidden() {
- if (is_hidden_)
- return;
-
- // If we receive any more paint messages while we are hidden, we want to
- // ignore them so we don't re-allocate the backing store. We will paint
- // everything again when we become selected again.
- is_hidden_ = true;
-
- // If we have a renderer, then inform it that we are being hidden so it can
- // reduce its resource utilization.
- GetRenderWidgetHost()->WasHidden();
-}
-
-void RenderWidgetHostViewGtk::SetSize(const gfx::Size& size) {
- int width = std::min(size.width(), kMaxWindowWidth);
- int height = std::min(size.height(), kMaxWindowHeight);
- if (IsPopup()) {
- // We're a popup, honor the size request.
- gtk_widget_set_size_request(view_.get(), width, height);
- } else {
-#if defined(TOOLKIT_VIEWS)
- // TOOLKIT_VIEWS' resize logic flow matches windows. so we go ahead and
- // size the widget. In GTK+, the size of the widget is determined by its
- // children.
- gtk_widget_set_size_request(view_.get(), width, height);
-#endif
- }
-
- // Update the size of the RWH.
- if (requested_size_.width() != width ||
- requested_size_.height() != height) {
- requested_size_ = gfx::Size(width, height);
- host_->WasResized();
- }
-}
-
-void RenderWidgetHostViewGtk::SetBounds(const gfx::Rect& rect) {
- // This is called when webkit has sent us a Move message.
- if (IsPopup()) {
- gtk_window_move(GTK_WINDOW(gtk_widget_get_toplevel(view_.get())),
- rect.x(), rect.y());
- }
-
- SetSize(rect.size());
-}
-
-gfx::NativeView RenderWidgetHostViewGtk::GetNativeView() {
- return view_.get();
-}
-
-void RenderWidgetHostViewGtk::MovePluginWindows(
- const std::vector<webkit::npapi::WebPluginGeometry>& moves) {
- for (size_t i = 0; i < moves.size(); ++i) {
- plugin_container_manager_.MovePluginContainer(moves[i]);
- }
-}
-
-void RenderWidgetHostViewGtk::Focus() {
- gtk_widget_grab_focus(view_.get());
-}
-
-void RenderWidgetHostViewGtk::Blur() {
- // TODO(estade): We should be clearing native focus as well, but I know of no
- // way to do that without focusing another widget.
- host_->Blur();
-}
-
-bool RenderWidgetHostViewGtk::HasFocus() {
- return gtk_widget_is_focus(view_.get());
-}
-
-void RenderWidgetHostViewGtk::Show() {
- gtk_widget_show(view_.get());
-}
-
-void RenderWidgetHostViewGtk::Hide() {
- gtk_widget_hide(view_.get());
-}
-
-bool RenderWidgetHostViewGtk::IsShowing() {
- return gtk_widget_get_visible(view_.get());
-}
-
-gfx::Rect RenderWidgetHostViewGtk::GetViewBounds() const {
- GtkAllocation* alloc = &view_.get()->allocation;
- return gfx::Rect(alloc->x, alloc->y,
- requested_size_.width(),
- requested_size_.height());
-}
-
-void RenderWidgetHostViewGtk::UpdateCursor(const WebCursor& cursor) {
- // Optimize the common case, where the cursor hasn't changed.
- // However, we can switch between different pixmaps, so only on the
- // non-pixmap branch.
- if (current_cursor_.GetCursorType() != GDK_CURSOR_IS_PIXMAP &&
- current_cursor_.GetCursorType() == cursor.GetCursorType()) {
- return;
- }
-
- current_cursor_ = cursor;
- ShowCurrentCursor();
-}
-
-void RenderWidgetHostViewGtk::SetIsLoading(bool is_loading) {
- is_loading_ = is_loading;
- // Only call ShowCurrentCursor() when it will actually change the cursor.
- if (current_cursor_.GetCursorType() == GDK_LAST_CURSOR)
- ShowCurrentCursor();
-}
-
-void RenderWidgetHostViewGtk::ImeUpdateTextInputState(
- ui::TextInputType type,
- bool can_compose_inline,
- const gfx::Rect& caret_rect) {
- im_context_->UpdateInputMethodState(type, can_compose_inline, caret_rect);
-}
-
-void RenderWidgetHostViewGtk::ImeCancelComposition() {
- im_context_->CancelComposition();
-}
-
-void RenderWidgetHostViewGtk::DidUpdateBackingStore(
- const gfx::Rect& scroll_rect, int scroll_dx, int scroll_dy,
- const std::vector<gfx::Rect>& copy_rects) {
- if (is_hidden_)
- return;
-
- // TODO(darin): Implement the equivalent of Win32's ScrollWindowEX. Can that
- // be done using XCopyArea? Perhaps similar to
- // BackingStore::ScrollBackingStore?
- if (about_to_validate_and_paint_)
- invalid_rect_ = invalid_rect_.Union(scroll_rect);
- else
- Paint(scroll_rect);
-
- for (size_t i = 0; i < copy_rects.size(); ++i) {
- // Avoid double painting. NOTE: This is only relevant given the call to
- // Paint(scroll_rect) above.
- gfx::Rect rect = copy_rects[i].Subtract(scroll_rect);
- if (rect.IsEmpty())
- continue;
-
- if (about_to_validate_and_paint_)
- invalid_rect_ = invalid_rect_.Union(rect);
- else
- Paint(rect);
- }
-}
-
-void RenderWidgetHostViewGtk::RenderViewGone(base::TerminationStatus status,
- int error_code) {
- Destroy();
- plugin_container_manager_.set_host_widget(NULL);
-}
-
-void RenderWidgetHostViewGtk::Destroy() {
- if (compositing_surface_ != gfx::kNullPluginWindow) {
- GtkNativeViewManager* manager = GtkNativeViewManager::GetInstance();
- manager->ReleasePermanentXID(compositing_surface_);
- }
-
- if (do_x_grab_) {
- // Undo the X grab.
- GdkDisplay* display = gtk_widget_get_display(parent_);
- gdk_display_pointer_ungrab(display, GDK_CURRENT_TIME);
- gdk_display_keyboard_ungrab(display, GDK_CURRENT_TIME);
- }
-
- // If this is a popup or fullscreen widget, then we need to destroy the window
- // that we created to hold it.
- if (IsPopup() || is_fullscreen_) {
- GtkWidget* window = gtk_widget_get_parent(view_.get());
-
- // Disconnect the destroy handler so that we don't try to shutdown twice.
- if (is_fullscreen_)
- g_signal_handler_disconnect(window, destroy_handler_id_);
-
- gtk_widget_destroy(window);
- }
-
- // Remove |view_| from all containers now, so nothing else can hold a
- // reference to |view_|'s widget except possibly a gtk signal handler if
- // this code is currently executing within the context of a gtk signal
- // handler. Note that |view_| is still alive after this call. It will be
- // deallocated in the destructor.
- // See http://www.crbug.com/11847 for details.
- gtk_widget_destroy(view_.get());
-
- // The RenderWidgetHost's destruction led here, so don't call it.
- host_ = NULL;
-
- MessageLoop::current()->DeleteSoon(FROM_HERE, this);
-}
-
-void RenderWidgetHostViewGtk::SetTooltipText(const std::wstring& tooltip_text) {
- // Maximum number of characters we allow in a tooltip.
- const int kMaxTooltipLength = 8 << 10;
- // Clamp the tooltip length to kMaxTooltipLength so that we don't
- // accidentally DOS the user with a mega tooltip (since GTK doesn't do
- // this itself).
- // I filed https://bugzilla.gnome.org/show_bug.cgi?id=604641 upstream.
- const string16 clamped_tooltip =
- l10n_util::TruncateString(WideToUTF16Hack(tooltip_text),
- kMaxTooltipLength);
-
- if (clamped_tooltip.empty()) {
- gtk_widget_set_has_tooltip(view_.get(), FALSE);
- } else {
- gtk_widget_set_tooltip_text(view_.get(),
- UTF16ToUTF8(clamped_tooltip).c_str());
-#if defined(OS_CHROMEOS)
- tooltip_window_->SetTooltipText(UTF16ToWideHack(clamped_tooltip));
-#endif // defined(OS_CHROMEOS)
- }
-}
-
-void RenderWidgetHostViewGtk::SelectionChanged(const std::string& text,
- const ui::Range& range,
- const gfx::Point& start,
- const gfx::Point& end) {
- if (!text.empty()) {
- GtkClipboard* x_clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
- gtk_clipboard_set_text(x_clipboard, text.c_str(), text.length());
- }
-}
-
-void RenderWidgetHostViewGtk::ShowingContextMenu(bool showing) {
- is_showing_context_menu_ = showing;
-}
-
-#if !defined(TOOLKIT_VIEWS)
-void RenderWidgetHostViewGtk::AppendInputMethodsContextMenu(MenuGtk* menu) {
- im_context_->AppendInputMethodsContextMenu(menu);
-}
-#endif
-
-gboolean RenderWidgetHostViewGtk::OnWindowStateEvent(
- GtkWidget* widget,
- GdkEventWindowState* event) {
- if (is_fullscreen_) {
- // If a fullscreen widget got unfullscreened (e.g. by the window manager),
- // close it.
- bool unfullscreened =
- (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN) &&
- !(event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN);
- if (unfullscreened) {
- host_->Shutdown();
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-void RenderWidgetHostViewGtk::OnDestroy(GtkWidget* widget) {
- DCHECK(is_fullscreen_);
- host_->Shutdown();
-}
-
-bool RenderWidgetHostViewGtk::NeedsInputGrab() {
- return popup_type_ == WebKit::WebPopupTypeSelect;
-}
-
-bool RenderWidgetHostViewGtk::IsPopup() const {
- return popup_type_ != WebKit::WebPopupTypeNone;
-}
-
-void RenderWidgetHostViewGtk::DoSharedInit() {
- view_.Own(RenderWidgetHostViewGtkWidget::CreateNewWidget(this));
- im_context_.reset(new GtkIMContextWrapper(this));
- plugin_container_manager_.set_host_widget(view_.get());
-#if defined(OS_CHROMEOS)
- tooltip_window_.reset(new views::TooltipWindowGtk(view_.get()));
-#else
- key_bindings_handler_.reset(new GtkKeyBindingsHandler(view_.get()));
-#endif
-}
-
-void RenderWidgetHostViewGtk::DoPopupOrFullscreenInit(GtkWindow* window,
- const gfx::Rect& bounds) {
- requested_size_.SetSize(std::min(bounds.width(), kMaxWindowWidth),
- std::min(bounds.height(), kMaxWindowHeight));
- host_->WasResized();
-
- gtk_widget_set_size_request(
- view_.get(), requested_size_.width(), requested_size_.height());
-
- // Don't allow the window to be resized. This also forces the window to
- // shrink down to the size of its child contents.
- gtk_window_set_resizable(window, FALSE);
- gtk_window_set_default_size(window, -1, -1);
- gtk_window_move(window, bounds.x(), bounds.y());
-
- gtk_widget_show_all(GTK_WIDGET(window));
-}
-
-BackingStore* RenderWidgetHostViewGtk::AllocBackingStore(
- const gfx::Size& size) {
- return new BackingStoreX(host_, size,
- ui::GetVisualFromGtkWidget(view_.get()),
- gtk_widget_get_visual(view_.get())->depth);
-}
-
-void RenderWidgetHostViewGtk::SetBackground(const SkBitmap& background) {
- RenderWidgetHostView::SetBackground(background);
- host_->Send(new ViewMsg_SetBackground(host_->routing_id(), background));
-}
-
-void RenderWidgetHostViewGtk::ModifyEventForEdgeDragging(
- GtkWidget* widget, GdkEventMotion* event) {
- // If the widget is aligned with an edge of the monitor its on and the user
- // attempts to drag past that edge we track the number of times it has
- // occurred, so that we can force the widget to scroll when it otherwise
- // would be unable to, by modifying the (x,y) position in the drag
- // event that we forward on to webkit. If we get a move that's no longer a
- // drag or a drag indicating the user is no longer at that edge we stop
- // altering the drag events.
- int new_dragged_at_horizontal_edge = 0;
- int new_dragged_at_vertical_edge = 0;
- // Used for checking the edges of the monitor. We cache the values to save
- // roundtrips to the X server.
- static gfx::Size drag_monitor_size;
- if (event->state & GDK_BUTTON1_MASK) {
- if (drag_monitor_size.IsEmpty()) {
- // We can safely cache the monitor size for the duration of a drag.
- GdkScreen* screen = gtk_widget_get_screen(widget);
- int monitor =
- gdk_screen_get_monitor_at_point(screen, event->x_root, event->y_root);
- GdkRectangle geometry;
- gdk_screen_get_monitor_geometry(screen, monitor, &geometry);
- drag_monitor_size.SetSize(geometry.width, geometry.height);
- }
-
- // Check X and Y independently, as the user could be dragging into a corner.
- if (event->x == 0 && event->x_root == 0) {
- new_dragged_at_horizontal_edge = dragged_at_horizontal_edge_ - 1;
- } else if (widget->allocation.width - 1 == static_cast<gint>(event->x) &&
- drag_monitor_size.width() - 1 == static_cast<gint>(event->x_root)) {
- new_dragged_at_horizontal_edge = dragged_at_horizontal_edge_ + 1;
- }
-
- if (event->y == 0 && event->y_root == 0) {
- new_dragged_at_vertical_edge = dragged_at_vertical_edge_ - 1;
- } else if (widget->allocation.height - 1 == static_cast<gint>(event->y) &&
- drag_monitor_size.height() - 1 == static_cast<gint>(event->y_root)) {
- new_dragged_at_vertical_edge = dragged_at_vertical_edge_ + 1;
- }
-
- event->x_root += new_dragged_at_horizontal_edge;
- event->x += new_dragged_at_horizontal_edge;
- event->y_root += new_dragged_at_vertical_edge;
- event->y += new_dragged_at_vertical_edge;
- } else {
- // Clear whenever we get a non-drag mouse move.
- drag_monitor_size.SetSize(0, 0);
- }
- dragged_at_horizontal_edge_ = new_dragged_at_horizontal_edge;
- dragged_at_vertical_edge_ = new_dragged_at_vertical_edge;
-}
-
-void RenderWidgetHostViewGtk::Paint(const gfx::Rect& damage_rect) {
- // If the GPU process is rendering directly into the View,
- // call the compositor directly.
- RenderWidgetHost* render_widget_host = GetRenderWidgetHost();
- if (render_widget_host->is_accelerated_compositing_active()) {
- host_->ScheduleComposite();
- return;
- }
-
- GdkWindow* window = view_.get()->window;
- DCHECK(!about_to_validate_and_paint_);
-
- invalid_rect_ = damage_rect;
- about_to_validate_and_paint_ = true;
- BackingStoreX* backing_store = static_cast<BackingStoreX*>(
- host_->GetBackingStore(true));
- // Calling GetBackingStore maybe have changed |invalid_rect_|...
- about_to_validate_and_paint_ = false;
-
- gfx::Rect paint_rect = gfx::Rect(0, 0, kMaxWindowWidth, kMaxWindowHeight);
- paint_rect = paint_rect.Intersect(invalid_rect_);
-
- if (backing_store) {
- // Only render the widget if it is attached to a window; there's a short
- // period where this object isn't attached to a window but hasn't been
- // Destroy()ed yet and it receives paint messages...
- if (window) {
- if (SkColorGetA(overlay_color_) == 0) {
- // In the common case, use XCopyArea. We don't draw more than once, so
- // we don't need to double buffer.
- backing_store->XShowRect(gfx::Point(0, 0),
- paint_rect, ui::GetX11WindowFromGtkWidget(view_.get()));
- } else {
- // If the grey blend is showing, we make two drawing calls. Use double
- // buffering to prevent flicker. Use CairoShowRect because XShowRect
- // shortcuts GDK's double buffering. We won't be able to draw outside
- // of |damage_rect|, so invalidate the difference between |paint_rect|
- // and |damage_rect|.
- if (paint_rect != damage_rect) {
- GdkRectangle extra_gdk_rect =
- paint_rect.Subtract(damage_rect).ToGdkRectangle();
- gdk_window_invalidate_rect(window, &extra_gdk_rect, false);
- }
-
- GdkRectangle rect = { damage_rect.x(), damage_rect.y(),
- damage_rect.width(), damage_rect.height() };
- gdk_window_begin_paint_rect(window, &rect);
-
- backing_store->CairoShowRect(damage_rect, GDK_DRAWABLE(window));
-
- cairo_t* cr = gdk_cairo_create(window);
- gdk_cairo_rectangle(cr, &rect);
- SkColor overlay = SkColorSetA(
- overlay_color_,
- SkColorGetA(overlay_color_) *
- overlay_animation_.GetCurrentValue());
- float r = SkColorGetR(overlay) / 255.;
- float g = SkColorGetG(overlay) / 255.;
- float b = SkColorGetB(overlay) / 255.;
- float a = SkColorGetA(overlay) / 255.;
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_fill(cr);
- cairo_destroy(cr);
-
- gdk_window_end_paint(window);
- }
- }
- if (!whiteout_start_time_.is_null()) {
- base::TimeDelta whiteout_duration = base::TimeTicks::Now() -
- whiteout_start_time_;
- UMA_HISTOGRAM_TIMES("MPArch.RWHH_WhiteoutDuration", whiteout_duration);
-
- // Reset the start time to 0 so that we start recording again the next
- // time the backing store is NULL...
- whiteout_start_time_ = base::TimeTicks();
- }
- if (!tab_switch_paint_time_.is_null()) {
- base::TimeDelta tab_switch_paint_duration = base::TimeTicks::Now() -
- tab_switch_paint_time_;
- UMA_HISTOGRAM_TIMES("MPArch.RWH_TabSwitchPaintDuration",
- tab_switch_paint_duration);
- // Reset tab_switch_paint_time_ to 0 so future tab selections are
- // recorded.
- tab_switch_paint_time_ = base::TimeTicks();
- }
- } else {
- if (window)
- gdk_window_clear(window);
- if (whiteout_start_time_.is_null())
- whiteout_start_time_ = base::TimeTicks::Now();
- }
-}
-
-void RenderWidgetHostViewGtk::ShowCurrentCursor() {
- // The widget may not have a window. If that's the case, abort mission. This
- // is the same issue as that explained above in Paint().
- if (!view_.get()->window)
- return;
-
- // TODO(port): WebKit bug https://bugs.webkit.org/show_bug.cgi?id=16388 is
- // that calling gdk_window_set_cursor repeatedly is expensive. We should
- // avoid it here where possible.
- GdkCursor* gdk_cursor;
- if (current_cursor_.GetCursorType() == GDK_LAST_CURSOR) {
- // Use MOZ_CURSOR_SPINNING if we are showing the default cursor and
- // the page is loading.
- gdk_cursor = is_loading_ ? GetMozSpinningCursor() : NULL;
- } else {
- gdk_cursor = current_cursor_.GetNativeCursor();
- }
- gdk_window_set_cursor(view_.get()->window, gdk_cursor);
-}
-
-void RenderWidgetHostViewGtk::CreatePluginContainer(
- gfx::PluginWindowHandle id) {
- plugin_container_manager_.CreatePluginContainer(id);
-}
-
-void RenderWidgetHostViewGtk::DestroyPluginContainer(
- gfx::PluginWindowHandle id) {
- plugin_container_manager_.DestroyPluginContainer(id);
-}
-
-void RenderWidgetHostViewGtk::SetVisuallyDeemphasized(
- const SkColor* color, bool animate) {
- // Do nothing unless |color| has changed, meaning |animate| is only
- // respected for the first call.
- if (color && (*color == overlay_color_))
- return;
-
- overlay_color_ = color ? *color : 0;
-
- if (animate) {
- overlay_animation_.Reset();
- overlay_animation_.Show();
- } else {
- overlay_animation_.Reset(1.0);
- gtk_widget_queue_draw(view_.get());
- }
-}
-
-void RenderWidgetHostViewGtk::UnhandledWheelEvent(
- const WebKit::WebMouseWheelEvent& event) {
-}
-
-void RenderWidgetHostViewGtk::SetHasHorizontalScrollbar(
- bool has_horizontal_scrollbar) {
-}
-
-void RenderWidgetHostViewGtk::SetScrollOffsetPinning(
- bool is_pinned_to_left, bool is_pinned_to_right) {
-}
-
-
-void RenderWidgetHostViewGtk::AcceleratedCompositingActivated(bool activated) {
- GtkPreserveWindow* widget =
- reinterpret_cast<GtkPreserveWindow*>(view_.get());
-
- gtk_preserve_window_delegate_resize(widget, activated);
-}
-
-gfx::PluginWindowHandle RenderWidgetHostViewGtk::GetCompositingSurface() {
- if (compositing_surface_ == gfx::kNullPluginWindow) {
- GtkNativeViewManager* manager = GtkNativeViewManager::GetInstance();
- gfx::NativeViewId view_id = gfx::IdFromNativeView(GetNativeView());
-
- if (!manager->GetPermanentXIDForId(&compositing_surface_, view_id)) {
- DLOG(ERROR) << "Can't find XID for view id " << view_id;
- }
- }
- return compositing_surface_;
-}
-
-void RenderWidgetHostViewGtk::ForwardKeyboardEvent(
- const NativeWebKeyboardEvent& event) {
- if (!host_)
- return;
-
-#if !defined(OS_CHROMEOS)
- EditCommands edit_commands;
- if (!event.skip_in_browser &&
- key_bindings_handler_->Match(event, &edit_commands)) {
- host_->Send(new ViewMsg_SetEditCommandsForNextKeyEvent(
- host_->routing_id(), edit_commands));
- NativeWebKeyboardEvent copy_event(event);
- copy_event.match_edit_command = true;
- host_->ForwardKeyboardEvent(copy_event);
- return;
- }
-#endif
-
- host_->ForwardKeyboardEvent(event);
-}
-
-void RenderWidgetHostViewGtk::AnimationEnded(const ui::Animation* animation) {
- gtk_widget_queue_draw(view_.get());
-}
-
-void RenderWidgetHostViewGtk::AnimationProgressed(
- const ui::Animation* animation) {
- gtk_widget_queue_draw(view_.get());
-}
-
-void RenderWidgetHostViewGtk::AnimationCanceled(
- const ui::Animation* animation) {
- gtk_widget_queue_draw(view_.get());
-}
-
-void RenderWidgetHostViewGtk::set_last_mouse_down(GdkEventButton* event) {
- GdkEventButton* temp = NULL;
- if (event) {
- temp = reinterpret_cast<GdkEventButton*>(
- gdk_event_copy(reinterpret_cast<GdkEvent*>(event)));
- }
-
- if (last_mouse_down_)
- gdk_event_free(reinterpret_cast<GdkEvent*>(last_mouse_down_));
-
- last_mouse_down_ = temp;
-}
-
-// static
-RenderWidgetHostView*
- RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
- gfx::NativeView widget) {
- gpointer user_data = g_object_get_data(G_OBJECT(widget),
- kRenderWidgetHostViewKey);
- return reinterpret_cast<RenderWidgetHostView*>(user_data);
-}

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