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// 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/ui/gtk/constrained_window_gtk.h"
#include <gdk/gdkkeysyms.h>
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/gtk/gtk_util.h"
#include "content/browser/browser_thread.h"
#include "content/browser/tab_contents/tab_contents.h"
#if defined(TOUCH_UI)
#include "chrome/browser/ui/views/tab_contents/tab_contents_view_touch.h"
#elif defined(TOOLKIT_VIEWS)
#include "chrome/browser/ui/views/tab_contents/native_tab_contents_view_gtk.h"
#include "chrome/browser/ui/views/tab_contents/tab_contents_view_views.h"
#else
#include "chrome/browser/tab_contents/tab_contents_view_gtk.h"
#endif
ConstrainedWindowGtkDelegate::~ConstrainedWindowGtkDelegate() {
}
bool ConstrainedWindowGtkDelegate::GetBackgroundColor(GdkColor* color) {
return false;
}
bool ConstrainedWindowGtkDelegate::ShouldHaveBorderPadding() const {
return true;
}
ConstrainedWindowGtk::ConstrainedWindowGtk(
TabContents* owner, ConstrainedWindowGtkDelegate* delegate)
: owner_(owner),
delegate_(delegate),
visible_(false),
factory_(this) {
DCHECK(owner);
DCHECK(delegate);
GtkWidget* dialog = delegate->GetWidgetRoot();
// Unlike other users of CreateBorderBin, we need a dedicated frame around
// our "window".
GtkWidget* ebox = gtk_event_box_new();
GtkWidget* frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_OUT);
GtkWidget* alignment = gtk_alignment_new(0.0, 0.0, 1.0, 1.0);
if (delegate->ShouldHaveBorderPadding()) {
gtk_alignment_set_padding(GTK_ALIGNMENT(alignment),
gtk_util::kContentAreaBorder, gtk_util::kContentAreaBorder,
gtk_util::kContentAreaBorder, gtk_util::kContentAreaBorder);
}
GdkColor background;
if (delegate->GetBackgroundColor(&background)) {
gtk_widget_modify_base(ebox, GTK_STATE_NORMAL, &background);
gtk_widget_modify_fg(ebox, GTK_STATE_NORMAL, &background);
gtk_widget_modify_bg(ebox, GTK_STATE_NORMAL, &background);
}
if (gtk_widget_get_parent(dialog))
gtk_widget_reparent(dialog, alignment);
else
gtk_container_add(GTK_CONTAINER(alignment), dialog);
gtk_container_add(GTK_CONTAINER(frame), alignment);
gtk_container_add(GTK_CONTAINER(ebox), frame);
border_.Own(ebox);
gtk_widget_add_events(widget(), GDK_KEY_PRESS_MASK);
g_signal_connect(widget(), "key-press-event", G_CALLBACK(OnKeyPressThunk),
this);
g_signal_connect(widget(), "hierarchy-changed",
G_CALLBACK(OnHierarchyChangedThunk), this);
}
ConstrainedWindowGtk::~ConstrainedWindowGtk() {
border_.Destroy();
}
void ConstrainedWindowGtk::ShowConstrainedWindow() {
gtk_widget_show_all(border_.get());
// We collaborate with TabContentsView and stick ourselves in the
// TabContentsView's floating container.
ContainingView()->AttachConstrainedWindow(this);
visible_ = true;
}
void ConstrainedWindowGtk::CloseConstrainedWindow() {
if (visible_)
ContainingView()->RemoveConstrainedWindow(this);
delegate_->DeleteDelegate();
owner_->WillClose(this);
delete this;
}
void ConstrainedWindowGtk::FocusConstrainedWindow() {
GtkWidget* focus_widget = delegate_->GetFocusWidget();
if (!focus_widget)
return;
// The user may have focused another tab. In this case do not grab focus
// until this tab is refocused.
if ((!owner_->delegate() ||
owner_->delegate()->ShouldFocusConstrainedWindow()) &&
gtk_util::IsWidgetAncestryVisible(focus_widget)) {
gtk_widget_grab_focus(focus_widget);
} else {
// TODO(estade): this define should not need to be here because this class
// should not be used on linux/views.
#if defined(TOOLKIT_GTK)
static_cast<TabContentsViewGtk*>(owner_->view())->
SetFocusedWidget(focus_widget);
#endif
}
}
ConstrainedWindowGtk::TabContentsViewType*
ConstrainedWindowGtk::ContainingView() {
#if defined(TOOLKIT_VIEWS)
return static_cast<NativeTabContentsViewGtk*>(
static_cast<TabContentsViewViews*>(owner_->view())->
native_tab_contents_view());
#else
return static_cast<TabContentsViewType*>(owner_->view());
#endif
}
gboolean ConstrainedWindowGtk::OnKeyPress(GtkWidget* sender,
GdkEventKey* key) {
if (key->keyval == GDK_Escape) {
// Let the stack unwind so the event handler can release its ref
// on widget().
MessageLoop::current()->PostTask(FROM_HERE,
factory_.NewRunnableMethod(
&ConstrainedWindowGtk::CloseConstrainedWindow));
return TRUE;
}
return FALSE;
}
void ConstrainedWindowGtk::OnHierarchyChanged(GtkWidget* sender,
GtkWidget* previous_toplevel) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!GTK_WIDGET_TOPLEVEL(gtk_widget_get_toplevel(widget())))
return;
FocusConstrainedWindow();
}
// static
ConstrainedWindow* ConstrainedWindow::CreateConstrainedDialog(
TabContents* parent,
ConstrainedWindowGtkDelegate* delegate) {
return new ConstrainedWindowGtk(parent, delegate);
}
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