components/html_viewer/web_layer_impl.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/html_viewer/web_layer_impl.h"
   6
   7 #include "cc/layers/layer.h"
   8 #include "components/html_viewer/frame.h"
   9 #include "ui/mojo/geometry/geometry.mojom.h"
  10
  11 using blink::WebFloatPoint;
  12 using blink::WebSize;
  13
  14 namespace html_viewer {
  15
  16 WebLayerImpl::WebLayerImpl(Frame* frame)
  17     : frame_(frame) {
  18 }
  19
  20 WebLayerImpl::~WebLayerImpl() {
  21 }
  22
  23 void WebLayerImpl::setBounds(const WebSize& size) {
  24   mojo::Rect rect = frame_->view()->bounds();
  25   rect.width = size.width;
  26   rect.height = size.height;
  27   frame_->view()->SetBounds(rect);
  28   cc_blink::WebLayerImpl::setBounds(size);
  29 }
  30
  31 void WebLayerImpl::setPosition(const WebFloatPoint& position) {
  32   mojo::Rect rect = frame_->view()->bounds();
  33   rect.x = 0;
  34   rect.y = 0;
  35   // TODO(fsamuel): This is a temporary hack until we have a UI process in
  36   // Mandoline. The View will always lag behind the cc::Layer.
  37   cc::Layer* current_layer = layer();
  38   while (current_layer) {
  39     rect.x += current_layer->position().x();
  40     rect.x -= current_layer->scroll_offset().x();
  41     rect.y += current_layer->position().y();
  42     rect.y -= current_layer->scroll_offset().y();
  43     current_layer = current_layer->parent();
  44   }
  45   frame_->view()->SetBounds(rect);
  46   cc_blink::WebLayerImpl::setPosition(position);
  47 }
  48
  49 }  // namespace html_viewer