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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/views/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"
#if defined(OS_WIN)
#include "chrome/browser/renderer_host/render_widget_host_view_win.h"
#endif
#include "views/widget/widget.h"
ExtensionView::ExtensionView(ExtensionHost* host, Browser* browser)
: host_(host), browser_(browser),
initialized_(false), pending_preferred_width_(0), container_(NULL),
is_clipped_(false) {
host_->set_view(this);
}
ExtensionView::~ExtensionView() {
View* parent = GetParent();
if (parent)
parent->RemoveChildView(this);
CleanUp();
}
Extension* ExtensionView::extension() const {
return host_->extension();
}
RenderViewHost* ExtensionView::render_view_host() const {
return host_->render_view_host();
}
void ExtensionView::DidStopLoading() {
ShowIfCompletelyLoaded();
}
void ExtensionView::SetIsClipped(bool is_clipped) {
if (is_clipped_ != is_clipped) {
is_clipped_ = is_clipped;
if (IsVisible())
ShowIfCompletelyLoaded();
}
}
void ExtensionView::SetVisible(bool is_visible) {
if (is_visible != IsVisible()) {
NativeViewHost::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) {
View::DidChangeBounds(previous, 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::CreateWidgetHostView() {
DCHECK(!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_->CreateRenderViewSoon(view);
SetVisible(false);
}
void ExtensionView::ShowIfCompletelyLoaded() {
if (IsVisible() || is_clipped_)
return;
// We wait to show the ExtensionView until it has loaded, and the view has
// actually been created. These can happen in different orders.
if (host_->did_stop_loading()) {
// For toolstrips, also wait until our parent has given us a background.
if (host_->GetRenderViewType() == ViewType::EXTENSION_TOOLSTRIP &&
render_view_host()->view()->background().empty()) {
return;
}
SetVisible(true);
UpdatePreferredWidth(pending_preferred_width_);
}
}
void ExtensionView::CleanUp() {
if (!initialized_)
return;
if (native_view())
Detach();
initialized_ = false;
}
void ExtensionView::SetBackground(const SkBitmap& background) {
if (render_view_host()->IsRenderViewLive() && render_view_host()->view()) {
render_view_host()->view()->SetBackground(background);
} else {
pending_background_ = background;
}
ShowIfCompletelyLoaded();
}
void ExtensionView::UpdatePreferredWidth(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.
gfx::Size preferred_size = GetPreferredSize();
if (!IsVisible()) {
pending_preferred_width_ = pref_width;
} else if (pref_width > 0 && pref_width != preferred_size.width()) {
if (preferred_size.height() == 0)
preferred_size.set_height(height());
SetPreferredSize(gfx::Size(pref_width, preferred_size.height()));
}
}
void ExtensionView::ViewHierarchyChanged(bool is_add,
views::View *parent,
views::View *child) {
NativeViewHost::ViewHierarchyChanged(is_add, parent, child);
if (is_add && GetWidget() && !initialized_)
CreateWidgetHostView();
}
void ExtensionView::HandleMouseEvent() {
if (container_)
container_->OnExtensionMouseEvent(this);
}
void ExtensionView::HandleMouseLeave() {
if (container_)
container_->OnExtensionMouseLeave(this);
}
void ExtensionView::RenderViewCreated() {
if (!pending_background_.empty() && render_view_host()->view()) {
render_view_host()->view()->SetBackground(pending_background_);
pending_background_.reset();
}
}
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