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// Copyright (c) 2006-2009 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/extensions/extension_view.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/renderer_host/render_widget_host_view.h"
#include "chrome/views/widget/widget.h"
#if defined(OS_WIN)
#include "chrome/browser/renderer_host/render_widget_host_view_win.h"
#endif
ExtensionView::ExtensionView(ExtensionHost* host, Browser* browser,
const GURL& content_url)
: host_(host), browser_(browser), content_url_(content_url),
initialized_(false) {
host_->set_view(this);
}
ExtensionView::~ExtensionView() {
if (GetHWND())
Detach();
}
void ExtensionView::SetVisible(bool is_visible) {
HWNDView::SetVisible(is_visible);
// Also tell RenderWidgetHostView the new visibility. Despite its name, it is
// not part of the View heirarchy and does not know about the change unless we
// tell it.
if (render_view_host()->view()) {
if (is_visible)
render_view_host()->view()->Show();
else
render_view_host()->view()->Hide();
}
}
void ExtensionView::DidChangeBounds(const gfx::Rect& previous,
const gfx::Rect& current) {
// Propagate the new size to RenderWidgetHostView.
// We can't send size zero because RenderWidget DCHECKs that.
if (render_view_host()->view() && !current.IsEmpty())
render_view_host()->view()->SetSize(gfx::Size(width(), height()));
}
void ExtensionView::ShowIfCompletelyLoaded() {
// We wait to show the ExtensionView until it has loaded and our parent has
// given us a background. These can happen in different orders.
if (host_->did_stop_loading() && render_view_host()->view() &&
!render_view_host()->view()->background().empty()) {
SetVisible(true);
DidContentsPreferredWidthChange(pending_preferred_width_);
}
}
void ExtensionView::SetBackground(const SkBitmap& background) {
if (initialized_ && render_view_host()->view()) {
render_view_host()->view()->SetBackground(background);
} else {
pending_background_ = background;
}
ShowIfCompletelyLoaded();
}
void ExtensionView::DidContentsPreferredWidthChange(const int pref_width) {
// Don't actually do anything with this information until we have been shown.
// Size changes will not be honored by lower layers while we are hidden.
if (!IsVisible()) {
pending_preferred_width_ = pref_width;
} else if (pref_width > 0) {
set_preferred_size(gfx::Size(pref_width, height()));
SizeToPreferredSize();
// TODO(rafaelw): This assumes that the extension view is a child of an
// ExtensionToolstrip, which is a child of the BookmarkBarView. There should
// be a way to do this where the ExtensionView doesn't have to know it's
// containment hierarchy.
if (GetParent() != NULL && GetParent()->GetParent() != NULL) {
GetParent()->GetParent()->Layout();
}
SchedulePaint();
}
}
void ExtensionView::ViewHierarchyChanged(bool is_add,
views::View *parent,
views::View *child) {
if (is_add && GetWidget() && !initialized_) {
initialized_ = true;
RenderWidgetHostView* view = RenderWidgetHostView::CreateViewForWidget(
render_view_host());
// TODO(mpcomplete): RWHV needs a cross-platform Init function.
#if defined(OS_WIN)
// Create the HWND. Note:
// RenderWidgetHostHWND supports windowed plugins, but if we ever also
// wanted to support constrained windows with this, we would need an
// additional HWND to parent off of because windowed plugin HWNDs cannot
// exist in the same z-order as constrained windows.
RenderWidgetHostViewWin* view_win =
static_cast<RenderWidgetHostViewWin*>(view);
HWND hwnd = view_win->Create(GetWidget()->GetNativeView());
view_win->ShowWindow(SW_SHOW);
Attach(hwnd);
#else
NOTIMPLEMENTED();
#endif
host_->CreateRenderView(content_url_, view);
SetVisible(false);
if (!pending_background_.empty()) {
render_view_host()->view()->SetBackground(pending_background_);
pending_background_.reset();
}
}
}
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