| // 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 "content/renderer/render_view_impl.h" |
| |
| #include "base/command_line.h" |
| #include "base/message_loop/message_loop.h" |
| #include "cc/trees/layer_tree_host.h" |
| #include "content/common/view_messages.h" |
| #include "content/renderer/gpu/render_widget_compositor.h" |
| #include "third_party/WebKit/public/web/WebView.h" |
| |
| namespace content { |
| |
| // Check content::BrowserControlsState, and |
| // blink::WebWidget::BrowserControlsState |
| // are kept in sync. |
| static_assert(int(BROWSER_CONTROLS_STATE_SHOWN) == |
| int(blink::kWebBrowserControlsShown), |
| "mismatching enums: SHOWN"); |
| static_assert(int(BROWSER_CONTROLS_STATE_HIDDEN) == |
| int(blink::kWebBrowserControlsHidden), |
| "mismatching enums: HIDDEN"); |
| static_assert(int(BROWSER_CONTROLS_STATE_BOTH) == |
| int(blink::kWebBrowserControlsBoth), |
| "mismatching enums: BOTH"); |
| |
| blink::WebBrowserControlsState ContentToBlink(BrowserControlsState state) { |
| return static_cast<blink::WebBrowserControlsState>(state); |
| } |
| |
| |
| // TODO(mvanouwerkerk): Stop calling this code path and delete it. |
| void RenderViewImpl::OnUpdateBrowserControlsState(bool enable_hiding, |
| bool enable_showing, |
| bool animate) { |
| // TODO(tedchoc): Investigate why messages are getting here before the |
| // compositor has been initialized. |
| LOG_IF(WARNING, !compositor_) |
| << "OnUpdateBrowserControlsState was unhandled."; |
| BrowserControlsState constraints = BROWSER_CONTROLS_STATE_BOTH; |
| if (!enable_showing) |
| constraints = BROWSER_CONTROLS_STATE_HIDDEN; |
| if (!enable_hiding) |
| constraints = BROWSER_CONTROLS_STATE_SHOWN; |
| BrowserControlsState current = BROWSER_CONTROLS_STATE_BOTH; |
| |
| UpdateBrowserControlsState(constraints, current, animate); |
| } |
| |
| void RenderViewImpl::UpdateBrowserControlsState( |
| BrowserControlsState constraints, |
| BrowserControlsState current, |
| bool animate) { |
| if (GetWebWidget()) |
| GetWebWidget()->UpdateBrowserControlsState( |
| ContentToBlink(constraints), ContentToBlink(current), animate); |
| |
| top_controls_constraints_ = constraints; |
| } |
| |
| void RenderViewImpl::didScrollWithKeyboard(const blink::WebSize& delta) { |
| if (delta.height == 0) |
| return; |
| |
| BrowserControlsState current = delta.height < 0 |
| ? BROWSER_CONTROLS_STATE_SHOWN |
| : BROWSER_CONTROLS_STATE_HIDDEN; |
| |
| UpdateBrowserControlsState(top_controls_constraints_, current, true); |
| } |
| |
| } // namespace content |