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// Copyright (c) 2009 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/gtk/tab_contents_container_gtk.h"
#include "base/i18n/rtl.h"
#include "chrome/browser/gtk/gtk_expanded_container.h"
#include "chrome/browser/gtk/gtk_floating_container.h"
#include "chrome/browser/gtk/status_bubble_gtk.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
#include "chrome/common/notification_service.h"
#include "gfx/native_widget_types.h"
TabContentsContainerGtk::TabContentsContainerGtk(StatusBubbleGtk* status_bubble)
: tab_contents_(NULL),
status_bubble_(status_bubble) {
Init();
}
TabContentsContainerGtk::~TabContentsContainerGtk() {
floating_.Destroy();
}
void TabContentsContainerGtk::Init() {
// A high level overview of the TabContentsContainer:
//
// +- GtkFloatingContainer |floating_| -------------------------------+
// |+- GtkExpandedContainer |expanded_| -----------------------------+|
// || ||
// || ||
// || ||
// || ||
// |+- (StatusBubble) ------+ ||
// |+ + ||
// |+-----------------------+----------------------------------------+|
// +------------------------------------------------------------------+
floating_.Own(gtk_floating_container_new());
gtk_widget_set_name(floating_.get(), "chrome-tab-contents-container");
expanded_ = gtk_expanded_container_new();
gtk_container_add(GTK_CONTAINER(floating_.get()), expanded_);
if (status_bubble_) {
gtk_floating_container_add_floating(GTK_FLOATING_CONTAINER(floating_.get()),
status_bubble_->widget());
g_signal_connect(floating_.get(), "set-floating-position",
G_CALLBACK(OnSetFloatingPosition), this);
}
gtk_widget_show(expanded_);
gtk_widget_show(floating_.get());
ViewIDUtil::SetDelegateForWidget(widget(), this);
}
void TabContentsContainerGtk::SetTabContents(TabContents* tab_contents) {
if (tab_contents_) {
gfx::NativeView widget = tab_contents_->GetNativeView();
if (widget)
gtk_widget_hide(widget);
tab_contents_->WasHidden();
registrar_.Remove(this, NotificationType::RENDER_VIEW_HOST_CHANGED,
Source<NavigationController>(&tab_contents_->controller()));
registrar_.Remove(this, NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(tab_contents_));
}
tab_contents_ = tab_contents;
// When detaching the last tab of the browser SetTabContents is invoked
// with NULL. Don't attempt to do anything in that case.
if (tab_contents_) {
// TabContents can change their RenderViewHost and hence the GtkWidget that
// is shown. I'm not entirely sure that we need to observe this event under
// GTK, but am putting a stub implementation and a comment saying that if
// we crash after that NOTIMPLEMENTED(), we'll need it.
registrar_.Add(this, NotificationType::RENDER_VIEW_HOST_CHANGED,
Source<NavigationController>(&tab_contents_->controller()));
registrar_.Add(this, NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(tab_contents_));
gfx::NativeView widget = tab_contents_->GetNativeView();
if (widget) {
if (widget->parent != expanded_)
gtk_container_add(GTK_CONTAINER(expanded_), widget);
gtk_widget_show(widget);
}
// We need to make sure that we are below the findbar.
// Sometimes the content native view will be null.
// TODO(estade): will this case ever cause findbar occlusion problems?
if (tab_contents_->GetContentNativeView()) {
GdkWindow* content_gdk_window =
tab_contents_->GetContentNativeView()->window;
if (content_gdk_window)
gdk_window_lower(content_gdk_window);
}
}
}
void TabContentsContainerGtk::DetachTabContents(TabContents* tab_contents) {
gfx::NativeView widget = tab_contents->GetNativeView();
// It is possible to detach an unrealized, unparented TabContents if you
// slow things down enough in valgrind. Might happen in the real world, too.
if (widget && widget->parent) {
DCHECK_EQ(widget->parent, expanded_);
gtk_container_remove(GTK_CONTAINER(expanded_), widget);
}
}
void TabContentsContainerGtk::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::RENDER_VIEW_HOST_CHANGED) {
RenderViewHostSwitchedDetails* switched_details =
Details<RenderViewHostSwitchedDetails>(details).ptr();
RenderViewHostChanged(switched_details->old_host,
switched_details->new_host);
} else if (type == NotificationType::TAB_CONTENTS_DESTROYED) {
TabContentsDestroyed(Source<TabContents>(source).ptr());
} else {
NOTREACHED();
}
}
void TabContentsContainerGtk::RenderViewHostChanged(RenderViewHost* old_host,
RenderViewHost* new_host) {
// TODO(port): Remove this method and the logic where we subscribe to the
// RENDER_VIEW_HOST_CHANGED notification. This was used on Windows for focus
// issues, and I'm not entirely convinced that this isn't necessary.
}
void TabContentsContainerGtk::TabContentsDestroyed(TabContents* contents) {
// Sometimes, a TabContents is destroyed before we know about it. This allows
// us to clean up our state in case this happens.
DCHECK(contents == tab_contents_);
SetTabContents(NULL);
}
// -----------------------------------------------------------------------------
// ViewIDUtil::Delegate implementation
GtkWidget* TabContentsContainerGtk::GetWidgetForViewID(ViewID view_id) {
if (view_id == VIEW_ID_TAB_CONTAINER ||
view_id == VIEW_ID_TAB_CONTAINER_FOCUS_VIEW) {
return widget();
}
return NULL;
}
// -----------------------------------------------------------------------------
// static
void TabContentsContainerGtk::OnSetFloatingPosition(
GtkFloatingContainer* floating_container, GtkAllocation* allocation,
TabContentsContainerGtk* tab_contents_container) {
StatusBubbleGtk* status = tab_contents_container->status_bubble_;
// Look at the size request of the status bubble and tell the
// GtkFloatingContainer where we want it positioned.
GtkRequisition requisition;
gtk_widget_size_request(status->widget(), &requisition);
bool ltr = !base::i18n::IsRTL();
GValue value = { 0, };
g_value_init(&value, G_TYPE_INT);
if (ltr ^ status->flip_horizontally()) // Is it on the left?
g_value_set_int(&value, 0);
else
g_value_set_int(&value, allocation->width - requisition.width);
gtk_container_child_set_property(GTK_CONTAINER(floating_container),
status->widget(), "x", &value);
int child_y = std::max(allocation->height - requisition.height, 0);
g_value_set_int(&value, child_y + status->y_offset());
gtk_container_child_set_property(GTK_CONTAINER(floating_container),
status->widget(), "y", &value);
g_value_unset(&value);
}
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