blob: eaec17844e3dbb6c04f649d71a41de5da38e115c [file] [log] [blame]
// 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 "android_webview/renderer/aw_render_view_ext.h"
#include "android_webview/common/render_view_messages.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_view.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebImageCache.h"
#include "third_party/WebKit/public/web/WebView.h"
namespace android_webview {
AwRenderViewExt::AwRenderViewExt(content::RenderView* render_view)
: content::RenderViewObserver(render_view) {}
AwRenderViewExt::~AwRenderViewExt() {}
// static
void AwRenderViewExt::RenderViewCreated(content::RenderView* render_view) {
new AwRenderViewExt(render_view); // |render_view| takes ownership.
}
void AwRenderViewExt::DidCommitCompositorFrame() {
PostCheckContentsSize();
}
void AwRenderViewExt::DidUpdateLayout() {
PostCheckContentsSize();
}
void AwRenderViewExt::PostCheckContentsSize() {
if (check_contents_size_timer_.IsRunning())
return;
check_contents_size_timer_.Start(FROM_HERE,
base::TimeDelta::FromMilliseconds(0), this,
&AwRenderViewExt::CheckContentsSize);
}
void AwRenderViewExt::CheckContentsSize() {
blink::WebView* webview = render_view()->GetWebView();
if (!webview)
return;
gfx::Size contents_size;
blink::WebFrame* main_frame = webview->mainFrame();
if (main_frame)
contents_size = main_frame->contentsSize();
// Fall back to contentsPreferredMinimumSize if the mainFrame is reporting a
// 0x0 size (this happens during initial load).
if (contents_size.IsEmpty()) {
contents_size = webview->contentsPreferredMinimumSize();
}
if (contents_size == last_sent_contents_size_)
return;
last_sent_contents_size_ = contents_size;
render_view()->GetMainRenderFrame()->Send(
new AwViewHostMsg_OnContentsSizeChanged(
render_view()->GetMainRenderFrame()->GetRoutingID(),
contents_size));
}
void AwRenderViewExt::Navigate(const GURL& url) {
// Navigate is called only on NEW navigations, so WebImageCache won't be
// freed when the user just clicks on links, but only when a navigation is
// started, for instance via loadUrl. A better approach would be clearing the
// cache on cross-site boundaries, however this would require too many
// changes both on the browser side (in RenderViewHostManger), to the
// IPCmessages and to the RenderViewObserver. Thus, clearing decoding image
// cache on Navigate, seems a more acceptable compromise.
blink::WebImageCache::clear();
}
} // namespace android_webview