1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/protocol/device/nsDeviceChannel.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,153 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "plstr.h"
1.10 +#include "nsDeviceChannel.h"
1.11 +#include "nsDeviceCaptureProvider.h"
1.12 +
1.13 +#ifdef MOZ_WIDGET_ANDROID
1.14 +#include "mozilla/Preferences.h"
1.15 +#include "AndroidCaptureProvider.h"
1.16 +#endif
1.17 +
1.18 +using namespace mozilla;
1.19 +
1.20 +// Copied from image/decoders/icon/nsIconURI.cpp
1.21 +// takes a string like ?size=32&contentType=text/html and returns a new string
1.22 +// containing just the attribute values. i.e you could pass in this string with
1.23 +// an attribute name of "size=", this will return 32
1.24 +// Assumption: attribute pairs are separated by &
1.25 +void extractAttributeValue(const char* searchString, const char* attributeName, nsCString& result)
1.26 +{
1.27 + result.Truncate();
1.28 +
1.29 + if (!searchString || !attributeName)
1.30 + return;
1.31 +
1.32 + uint32_t attributeNameSize = strlen(attributeName);
1.33 + const char *startOfAttribute = PL_strcasestr(searchString, attributeName);
1.34 + if (!startOfAttribute ||
1.35 + !( *(startOfAttribute-1) == '?' || *(startOfAttribute-1) == '&') )
1.36 + return;
1.37 +
1.38 + startOfAttribute += attributeNameSize; // Skip the attributeName
1.39 + if (!*startOfAttribute)
1.40 + return;
1.41 +
1.42 + const char *endOfAttribute = strchr(startOfAttribute, '&');
1.43 + if (endOfAttribute) {
1.44 + result.Assign(Substring(startOfAttribute, endOfAttribute));
1.45 + } else {
1.46 + result.Assign(startOfAttribute);
1.47 + }
1.48 +}
1.49 +
1.50 +NS_IMPL_ISUPPORTS_INHERITED(nsDeviceChannel,
1.51 + nsBaseChannel,
1.52 + nsIChannel)
1.53 +
1.54 +// nsDeviceChannel methods
1.55 +nsDeviceChannel::nsDeviceChannel()
1.56 +{
1.57 + SetContentType(NS_LITERAL_CSTRING("image/png"));
1.58 +}
1.59 +
1.60 +nsDeviceChannel::~nsDeviceChannel()
1.61 +{
1.62 +}
1.63 +
1.64 +nsresult
1.65 +nsDeviceChannel::Init(nsIURI* aUri)
1.66 +{
1.67 + nsBaseChannel::Init();
1.68 + nsBaseChannel::SetURI(aUri);
1.69 + return NS_OK;
1.70 +}
1.71 +
1.72 +nsresult
1.73 +nsDeviceChannel::OpenContentStream(bool aAsync,
1.74 + nsIInputStream** aStream,
1.75 + nsIChannel** aChannel)
1.76 +{
1.77 + if (!aAsync)
1.78 + return NS_ERROR_NOT_IMPLEMENTED;
1.79 +
1.80 + nsCOMPtr<nsIURI> uri = nsBaseChannel::URI();
1.81 + *aStream = nullptr;
1.82 + *aChannel = nullptr;
1.83 + NS_NAMED_LITERAL_CSTRING(width, "width=");
1.84 + NS_NAMED_LITERAL_CSTRING(height, "height=");
1.85 +
1.86 + nsAutoCString spec;
1.87 + uri->GetSpec(spec);
1.88 +
1.89 + nsAutoCString type;
1.90 +
1.91 + nsRefPtr<nsDeviceCaptureProvider> capture;
1.92 + nsCaptureParams captureParams;
1.93 + captureParams.camera = 0;
1.94 + if (kNotFound != spec.Find(NS_LITERAL_CSTRING("type=image/png"),
1.95 + true,
1.96 + 0,
1.97 + -1)) {
1.98 + type.AssignLiteral("image/png");
1.99 + SetContentType(type);
1.100 + captureParams.captureAudio = false;
1.101 + captureParams.captureVideo = true;
1.102 + captureParams.timeLimit = 0;
1.103 + captureParams.frameLimit = 1;
1.104 + nsAutoCString buffer;
1.105 + extractAttributeValue(spec.get(), "width=", buffer);
1.106 + nsresult err;
1.107 + captureParams.width = buffer.ToInteger(&err);
1.108 + if (!captureParams.width)
1.109 + captureParams.width = 640;
1.110 + extractAttributeValue(spec.get(), "height=", buffer);
1.111 + captureParams.height = buffer.ToInteger(&err);
1.112 + if (!captureParams.height)
1.113 + captureParams.height = 480;
1.114 + extractAttributeValue(spec.get(), "camera=", buffer);
1.115 + captureParams.camera = buffer.ToInteger(&err);
1.116 + captureParams.bpp = 32;
1.117 +#ifdef MOZ_WIDGET_ANDROID
1.118 + capture = GetAndroidCaptureProvider();
1.119 +#endif
1.120 + } else if (kNotFound != spec.Find(NS_LITERAL_CSTRING("type=video/x-raw-yuv"),
1.121 + true,
1.122 + 0,
1.123 + -1)) {
1.124 + type.AssignLiteral("video/x-raw-yuv");
1.125 + SetContentType(type);
1.126 + captureParams.captureAudio = false;
1.127 + captureParams.captureVideo = true;
1.128 + nsAutoCString buffer;
1.129 + extractAttributeValue(spec.get(), "width=", buffer);
1.130 + nsresult err;
1.131 + captureParams.width = buffer.ToInteger(&err);
1.132 + if (!captureParams.width)
1.133 + captureParams.width = 640;
1.134 + extractAttributeValue(spec.get(), "height=", buffer);
1.135 + captureParams.height = buffer.ToInteger(&err);
1.136 + if (!captureParams.height)
1.137 + captureParams.height = 480;
1.138 + extractAttributeValue(spec.get(), "camera=", buffer);
1.139 + captureParams.camera = buffer.ToInteger(&err);
1.140 + captureParams.bpp = 32;
1.141 + captureParams.timeLimit = 0;
1.142 + captureParams.frameLimit = 60000;
1.143 +#ifdef MOZ_WIDGET_ANDROID
1.144 + // only enable if "device.camera.enabled" is true.
1.145 + if (Preferences::GetBool("device.camera.enabled", false) == true)
1.146 + capture = GetAndroidCaptureProvider();
1.147 +#endif
1.148 + } else {
1.149 + return NS_ERROR_NOT_IMPLEMENTED;
1.150 + }
1.151 +
1.152 + if (!capture)
1.153 + return NS_ERROR_FAILURE;
1.154 +
1.155 + return capture->Init(type, &captureParams, aStream);
1.156 +}
