chrome/browser/ui/views/frame/top_container_view.cc

// Copyright 2013 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/views/frame/top_container_view.h"

#include "chrome/browser/ui/views/frame/browser_frame.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/frame/immersive_mode_controller.h"

TopContainerView::TopContainerView(BrowserView* browser_view)
    : browser_view_(browser_view) {
}

TopContainerView::~TopContainerView() {
}

gfx::Size TopContainerView::GetPreferredSize() {
  // The view wants to be as wide as its parent and tall enough to fully show
  // all its children. In particular, the bottom of the bookmark bar can be
  // be above the bottom of the toolbar while the bookmark bar is animating.
  int height = 0;
  for (int i = 0; i < child_count(); ++i) {
    views::View* child = child_at(i);
    if (!child->visible())
      continue;
    int child_bottom = child->bounds().bottom();
    if (child_bottom > height)
      height = child_bottom;
  }
  if (browser_view_->immersive_mode_controller()->IsRevealed()) {
    // In immersive fullscreen, the TopContainerView paints the window header
    // (themes, window title, window controls). The TopContainerView must still
    // paint these even if it does not have any visible children.
    height = std::max(height, browser_view_->frame()->GetTopInset());
  }
  return gfx::Size(browser_view_->width(), height);
}

const char* TopContainerView::GetClassName() const {
  return "TopContainerView";
}

void TopContainerView::OnPaintBackground(gfx::Canvas* canvas) {
  if (browser_view_->immersive_mode_controller()->IsRevealed()) {
    // Top-views depend on parts of the frame (themes, window title,
    // window controls) being painted underneath them. Clip rect has already
    // been set to the bounds of this view, so just paint the frame.
    views::View* frame = browser_view_->frame()->GetFrameView();
    frame->Paint(canvas);
  }
}