src/content/browser/screen_orientation/screen_orientation_dispatcher_host.cc

   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