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      1 // Copyright 2014 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 "content/browser/screen_orientation/screen_orientation_dispatcher_host.h"
      6 
      7 #include "content/browser/screen_orientation/screen_orientation_provider.h"
      8 #include "content/common/screen_orientation_messages.h"
      9 #include "content/public/browser/render_frame_host.h"
     10 #include "content/public/browser/web_contents.h"
     11 
     12 namespace content {
     13 
     14 ScreenOrientationDispatcherHost::ScreenOrientationDispatcherHost(
     15     WebContents* web_contents)
     16     : WebContentsObserver(web_contents) {
     17   if (!provider_.get())
     18     provider_.reset(CreateProvider());
     19 }
     20 
     21 ScreenOrientationDispatcherHost::~ScreenOrientationDispatcherHost() {
     22 }
     23 
     24 bool ScreenOrientationDispatcherHost::OnMessageReceived(
     25     const IPC::Message& message,
     26     RenderFrameHost* render_frame_host) {
     27   bool handled = true;
     28 
     29   IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(ScreenOrientationDispatcherHost, message,
     30                                    render_frame_host)
     31     IPC_MESSAGE_HANDLER(ScreenOrientationHostMsg_LockRequest, OnLockRequest)
     32     IPC_MESSAGE_HANDLER(ScreenOrientationHostMsg_Unlock, OnUnlockRequest)
     33     IPC_MESSAGE_UNHANDLED(handled = false)
     34   IPC_END_MESSAGE_MAP()
     35 
     36   return handled;
     37 }
     38 
     39 void ScreenOrientationDispatcherHost::OnOrientationChange(
     40     blink::WebScreenOrientationType orientation) {
     41   Send(new ScreenOrientationMsg_OrientationChange(orientation));
     42 }
     43 
     44 void ScreenOrientationDispatcherHost::SetProviderForTests(
     45     ScreenOrientationProvider* provider) {
     46   provider_.reset(provider);
     47 }
     48 
     49 void ScreenOrientationDispatcherHost::OnLockRequest(
     50     RenderFrameHost* render_frame_host,
     51     blink::WebScreenOrientationLockType orientation,
     52     int request_id) {
     53   if (!provider_) {
     54     render_frame_host->Send(new ScreenOrientationMsg_LockError(
     55         render_frame_host->GetRoutingID(),
     56         request_id,
     57         blink::WebLockOrientationCallback::ErrorTypeNotAvailable));
     58     return;
     59   }
     60 
     61   // TODO(mlamouri): pass real values.
     62   render_frame_host->Send(new ScreenOrientationMsg_LockSuccess(
     63       render_frame_host->GetRoutingID(),
     64       request_id,
     65       0,
     66       blink::WebScreenOrientationPortraitPrimary));
     67   provider_->LockOrientation(orientation);
     68 }
     69 
     70 void ScreenOrientationDispatcherHost::OnUnlockRequest(
     71     RenderFrameHost* render_frame_host) {
     72   if (!provider_.get())
     73     return;
     74 
     75   provider_->UnlockOrientation();
     76 }
     77 
     78 #if !defined(OS_ANDROID)
     79 // static
     80 ScreenOrientationProvider* ScreenOrientationDispatcherHost::CreateProvider() {
     81   return NULL;
     82 }
     83 #endif
     84 
     85 }  // namespace content
     86