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// Copyright (c) 2012 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 "ash/wm/custom_frame_view_ash.h"
#include "ash/wm/caption_buttons/frame_caption_button_container_view.h"
#include "ash/wm/frame_border_hit_test_controller.h"
#include "ash/wm/header_painter.h"
#include "grit/ash_resources.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/font.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/size.h"
#include "ui/views/widget/native_widget_aura.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
namespace {
const gfx::Font& GetTitleFont() {
static gfx::Font* title_font = NULL;
if (!title_font)
title_font = new gfx::Font(views::NativeWidgetAura::GetWindowTitleFont());
return *title_font;
}
} // namespace
namespace ash {
// static
const char CustomFrameViewAsh::kViewClassName[] = "CustomFrameViewAsh";
////////////////////////////////////////////////////////////////////////////////
// CustomFrameViewAsh, public:
CustomFrameViewAsh::CustomFrameViewAsh(views::Widget* frame)
: frame_(frame),
caption_button_container_(NULL),
header_painter_(new ash::HeaderPainter),
frame_border_hit_test_controller_(
new FrameBorderHitTestController(frame_)) {
// Unfortunately, there is no views::WidgetDelegate::CanMinimize(). Assume
// that the window frame can be minimized if it can be maximized.
FrameCaptionButtonContainerView::MinimizeAllowed minimize_allowed =
frame_->widget_delegate()->CanMaximize() ?
FrameCaptionButtonContainerView::MINIMIZE_ALLOWED :
FrameCaptionButtonContainerView::MINIMIZE_DISALLOWED;
caption_button_container_ = new FrameCaptionButtonContainerView(frame,
minimize_allowed);
AddChildView(caption_button_container_);
header_painter_->Init(frame_, this, NULL, caption_button_container_);
}
CustomFrameViewAsh::~CustomFrameViewAsh() {
}
////////////////////////////////////////////////////////////////////////////////
// CustomFrameViewAsh, views::NonClientFrameView overrides:
gfx::Rect CustomFrameViewAsh::GetBoundsForClientView() const {
int top_height = NonClientTopBorderHeight();
return HeaderPainter::GetBoundsForClientView(top_height, bounds());
}
gfx::Rect CustomFrameViewAsh::GetWindowBoundsForClientBounds(
const gfx::Rect& client_bounds) const {
int top_height = NonClientTopBorderHeight();
return HeaderPainter::GetWindowBoundsForClientBounds(top_height,
client_bounds);
}
int CustomFrameViewAsh::NonClientHitTest(const gfx::Point& point) {
return FrameBorderHitTestController::NonClientHitTest(this,
header_painter_.get(), point);
}
void CustomFrameViewAsh::GetWindowMask(const gfx::Size& size,
gfx::Path* window_mask) {
// No window masks in Aura.
}
void CustomFrameViewAsh::ResetWindowControls() {
caption_button_container_->ResetWindowControls();
}
void CustomFrameViewAsh::UpdateWindowIcon() {
}
void CustomFrameViewAsh::UpdateWindowTitle() {
header_painter_->SchedulePaintForTitle(GetTitleFont());
}
////////////////////////////////////////////////////////////////////////////////
// CustomFrameViewAsh, views::View overrides:
gfx::Size CustomFrameViewAsh::GetPreferredSize() {
gfx::Size pref = frame_->client_view()->GetPreferredSize();
gfx::Rect bounds(0, 0, pref.width(), pref.height());
return frame_->non_client_view()->GetWindowBoundsForClientBounds(
bounds).size();
}
void CustomFrameViewAsh::Layout() {
// Use the shorter maximized layout headers.
header_painter_->LayoutHeader(true);
header_painter_->set_header_height(NonClientTopBorderHeight());
}
void CustomFrameViewAsh::OnPaint(gfx::Canvas* canvas) {
if (frame_->IsFullscreen())
return;
// Prevent bleeding paint onto the client area below the window frame, which
// may become visible when the WebContent is transparent.
canvas->Save();
canvas->ClipRect(gfx::Rect(0, 0, width(), NonClientTopBorderHeight()));
bool paint_as_active = ShouldPaintAsActive();
int theme_image_id = 0;
if (header_painter_->ShouldUseMinimalHeaderStyle(HeaderPainter::THEMED_NO))
theme_image_id = IDR_AURA_WINDOW_HEADER_BASE_MINIMAL;
else if (paint_as_active)
theme_image_id = IDR_AURA_WINDOW_HEADER_BASE_ACTIVE;
else
theme_image_id = IDR_AURA_WINDOW_HEADER_BASE_INACTIVE;
header_painter_->PaintHeader(
canvas,
paint_as_active ? HeaderPainter::ACTIVE : HeaderPainter::INACTIVE,
theme_image_id,
0);
header_painter_->PaintTitleBar(canvas, GetTitleFont());
header_painter_->PaintHeaderContentSeparator(canvas);
canvas->Restore();
}
const char* CustomFrameViewAsh::GetClassName() const {
return kViewClassName;
}
gfx::Size CustomFrameViewAsh::GetMinimumSize() {
gfx::Size min_client_view_size(frame_->client_view()->GetMinimumSize());
return gfx::Size(
std::max(header_painter_->GetMinimumHeaderWidth(),
min_client_view_size.width()),
NonClientTopBorderHeight() + min_client_view_size.height());
}
gfx::Size CustomFrameViewAsh::GetMaximumSize() {
return frame_->client_view()->GetMaximumSize();
}
////////////////////////////////////////////////////////////////////////////////
// CustomFrameViewAsh, private:
int CustomFrameViewAsh::NonClientTopBorderHeight() const {
if (frame_->IsFullscreen())
return 0;
// Reserve enough space to see the buttons, including any offset from top and
// reserving space for the separator line.
return caption_button_container_->bounds().bottom() +
header_painter_->HeaderContentSeparatorSize();
}
} // namespace ash
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