LCOV - code coverage report
Current view: directory - netwerk/protocol/device - nsDeviceChannel.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 83 0 0.0 %
Date: 2012-06-02 Functions: 9 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Camera.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Mozilla Corporation
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *  Brad Lassey <blassey@mozilla.com>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "plstr.h"
      39                 : #include "nsComponentManagerUtils.h"
      40                 : #include "nsDeviceChannel.h"
      41                 : #include "nsDeviceCaptureProvider.h"
      42                 : #include "mozilla/Preferences.h"
      43                 : 
      44                 : #ifdef MOZ_WIDGET_ANDROID
      45                 : #include "AndroidCaptureProvider.h"
      46                 : #endif
      47                 : 
      48                 : #ifdef MOZ_WIDGET_GONK
      49                 : #include "GonkCaptureProvider.h"
      50                 : #endif
      51                 : 
      52                 : using namespace mozilla;
      53                 : 
      54                 : // Copied from image/decoders/icon/nsIconURI.cpp
      55                 : // takes a string like ?size=32&contentType=text/html and returns a new string
      56                 : // containing just the attribute values. i.e you could pass in this string with
      57                 : // an attribute name of "size=", this will return 32
      58                 : // Assumption: attribute pairs are separated by &
      59               0 : void extractAttributeValue(const char* searchString, const char* attributeName, nsCString& result)
      60                 : {
      61               0 :   result.Truncate();
      62                 : 
      63               0 :   if (!searchString || !attributeName)
      64               0 :     return;
      65                 : 
      66               0 :   PRUint32 attributeNameSize = strlen(attributeName);
      67               0 :   const char *startOfAttribute = PL_strcasestr(searchString, attributeName);
      68               0 :   if (!startOfAttribute ||
      69               0 :       !( *(startOfAttribute-1) == '?' || *(startOfAttribute-1) == '&') )
      70               0 :     return;
      71                 : 
      72               0 :   startOfAttribute += attributeNameSize; // Skip the attributeName
      73               0 :   if (!*startOfAttribute)
      74               0 :     return;
      75                 : 
      76               0 :   const char *endOfAttribute = strchr(startOfAttribute, '&');
      77               0 :   if (endOfAttribute) {
      78               0 :     result.Assign(Substring(startOfAttribute, endOfAttribute));
      79                 :   } else {
      80               0 :     result.Assign(startOfAttribute);
      81                 :   }
      82                 : }
      83                 : 
      84               0 : NS_IMPL_ISUPPORTS_INHERITED1(nsDeviceChannel,
      85                 :                              nsBaseChannel,
      86                 :                              nsIChannel)
      87                 : 
      88                 : // nsDeviceChannel methods
      89               0 : nsDeviceChannel::nsDeviceChannel()
      90                 : {
      91               0 :   SetContentType(NS_LITERAL_CSTRING("image/png"));
      92               0 : }
      93                 : 
      94               0 : nsDeviceChannel::~nsDeviceChannel() 
      95                 : {
      96               0 : }
      97                 : 
      98                 : nsresult
      99               0 : nsDeviceChannel::Init(nsIURI* aUri)
     100                 : {
     101               0 :   nsBaseChannel::Init();
     102               0 :   nsBaseChannel::SetURI(aUri);
     103               0 :   return NS_OK;
     104                 : }
     105                 : 
     106                 : nsresult
     107               0 : nsDeviceChannel::OpenContentStream(bool aAsync,
     108                 :                                    nsIInputStream** aStream,
     109                 :                                    nsIChannel** aChannel)
     110                 : {
     111               0 :   if (!aAsync)
     112               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     113                 : 
     114               0 :   nsCOMPtr<nsIURI> uri = nsBaseChannel::URI();
     115               0 :   *aStream = nsnull;
     116               0 :   *aChannel = nsnull;
     117               0 :   NS_NAMED_LITERAL_CSTRING(width, "width=");
     118               0 :   NS_NAMED_LITERAL_CSTRING(height, "height=");
     119                 : 
     120               0 :   nsCAutoString spec;
     121               0 :   uri->GetSpec(spec);
     122                 : 
     123               0 :   nsCAutoString type;
     124                 : 
     125               0 :   nsRefPtr<nsDeviceCaptureProvider> capture;
     126                 :   nsCaptureParams captureParams;
     127               0 :   captureParams.camera = 0;
     128               0 :   if (kNotFound != spec.Find(NS_LITERAL_CSTRING("type=image/png"),
     129                 :                              true,
     130                 :                              0,
     131               0 :                              -1)) {
     132               0 :     type.AssignLiteral("image/png");
     133               0 :     SetContentType(type);
     134               0 :     captureParams.captureAudio = false;
     135               0 :     captureParams.captureVideo = true;
     136               0 :     captureParams.timeLimit = 0;
     137               0 :     captureParams.frameLimit = 1;
     138               0 :     nsCAutoString buffer;
     139               0 :     extractAttributeValue(spec.get(), "width=", buffer);
     140                 :     nsresult err;
     141               0 :     captureParams.width = buffer.ToInteger(&err);
     142               0 :     if (!captureParams.width)
     143               0 :       captureParams.width = 640;
     144               0 :     extractAttributeValue(spec.get(), "height=", buffer);
     145               0 :     captureParams.height = buffer.ToInteger(&err);
     146               0 :     if (!captureParams.height)
     147               0 :       captureParams.height = 480;
     148               0 :     extractAttributeValue(spec.get(), "camera=", buffer);
     149               0 :     captureParams.camera = buffer.ToInteger(&err);
     150               0 :     captureParams.bpp = 32;
     151                 : #ifdef MOZ_WIDGET_ANDROID
     152                 :     capture = GetAndroidCaptureProvider();
     153                 : #endif
     154                 : #ifdef MOZ_WIDGET_GONK
     155                 :     capture = GetGonkCaptureProvider();
     156                 : #endif
     157               0 :   } else if (kNotFound != spec.Find(NS_LITERAL_CSTRING("type=video/x-raw-yuv"),
     158                 :                                     true,
     159                 :                                     0,
     160               0 :                                     -1)) {
     161               0 :     type.AssignLiteral("video/x-raw-yuv");
     162               0 :     SetContentType(type);
     163               0 :     captureParams.captureAudio = false;
     164               0 :     captureParams.captureVideo = true;
     165               0 :     nsCAutoString buffer;
     166               0 :     extractAttributeValue(spec.get(), "width=", buffer);
     167                 :     nsresult err;
     168               0 :     captureParams.width = buffer.ToInteger(&err);
     169               0 :     if (!captureParams.width)
     170               0 :       captureParams.width = 640;
     171               0 :     extractAttributeValue(spec.get(), "height=", buffer);
     172               0 :     captureParams.height = buffer.ToInteger(&err);
     173               0 :     if (!captureParams.height)
     174               0 :       captureParams.height = 480;
     175               0 :     extractAttributeValue(spec.get(), "camera=", buffer);
     176               0 :     captureParams.camera = buffer.ToInteger(&err);
     177               0 :     captureParams.bpp = 32;
     178               0 :     captureParams.timeLimit = 0;
     179               0 :     captureParams.frameLimit = 60000;
     180                 : #ifdef MOZ_WIDGET_ANDROID
     181                 :     // only enable if "device.camera.enabled" is true.
     182                 :     if (Preferences::GetBool("device.camera.enabled", false) == true)
     183                 :       capture = GetAndroidCaptureProvider();
     184                 : #endif
     185                 : #ifdef MOZ_WIDGET_GONK
     186                 :     if (Preferences::GetBool("device.camera.enabled", false) == true)
     187                 :       capture = GetGonkCaptureProvider();
     188                 : #endif
     189                 :   } else {
     190               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     191                 :   }
     192                 : 
     193               0 :   if (!capture)
     194               0 :     return NS_ERROR_FAILURE;
     195                 : 
     196               0 :   return capture->Init(type, &captureParams, aStream);
     197                 : }

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