1/*
  2 *
  3 * Licensed to the Apache Software Foundation (ASF) under one
  4 * or more contributor license agreements.  See the NOTICE file
  5 * distributed with this work for additional information
  6 * regarding copyright ownership.  The ASF licenses this file
  7 * to you under the Apache License, Version 2.0 (the
  8 * "License"); you may not use this file except in compliance
  9 * with the License.  You may obtain a copy of the License at
 10 *
 11 *   http://www.apache.org/licenses/LICENSE-2.0
 12 *
 13 * Unless required by applicable law or agreed to in writing,
 14 * software distributed under the License is distributed on an
 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 16 * KIND, either express or implied.  See the License for the
 17 * specific language governing permissions and limitations
 18 * under the License.
 19 *
 20*/
 21
 22#include "camera.h"
 23#include <cordova.h>
 24
 25#include <QCameraViewfinder>
 26#include <QCameraImageCapture>
 27#include <QGraphicsObject>
 28#include <QCloseEvent>
 29#include <QQuickItem>
 30
 31const char code[] = "\
 32var component, object;                                                  \
 33function createObject() {                                               \
 34    component = Qt.createComponent(%1);                                 \
 35    if (component.status == Component.Ready)                            \
 36        finishCreation();                                               \
 37    else                                                                \
 38        component.statusChanged.connect(finishCreation);                \
 39}                                                                       \
 40function finishCreation() {                                             \
 41    CordovaWrapper.global.cameraPluginWidget = component.createObject(root, \
 42        {root: root, cordova: cordova});                                \
 43}                                                                       \
 44createObject()";
 45
 46
 47Camera::Camera(Cordova *cordova):
 48    CPlugin(cordova),
 49    _lastScId(0),
 50    _lastEcId(0) {
 51}
 52
 53bool Camera::preprocessImage(QString &path) {
 54    bool convertToPNG = (*_options.find("encodingType")).toInt() == Camera::PNG;
 55    int quality = (*_options.find("quality")).toInt();
 56    int width = (*_options.find("targetWidth")).toInt();
 57    int height = (*_options.find("targetHeight")).toInt();
 58
 59    QImage image(path);
 60    if (width <= 0)
 61        width = image.width();
 62    if (height <= 0)
 63        height = image.height();
 64    image = image.scaled(width, height, Qt::KeepAspectRatio, Qt::SmoothTransformation);
 65
 66    QFile oldImage(path);
 67    QTemporaryFile newImage;
 68
 69    const char *type;
 70    if (convertToPNG) {
 71        path = generateLocation("png");
 72        type = "png";
 73    } else {
 74        path = generateLocation("jpg");
 75        type = "jpg";
 76    }
 77
 78    image.save(path, type, quality);
 79
 80    oldImage.remove();
 81
 82    return true;
 83}
 84
 85void Camera::onImageSaved(QString path) {
 86    bool dataURL = _options.find("destinationType")->toInt() == Camera::DATA_URL;
 87
 88    QString cbParams;
 89    if (preprocessImage(path)) {
 90        QString absolutePath = QFileInfo(path).absoluteFilePath();
 91        if (dataURL) {
 92            QFile image(absolutePath);
 93            image.open(QIODevice::ReadOnly);
 94            QByteArray content = image.readAll().toBase64();
 95            cbParams = QString("\"%1\"").arg(content.data());
 96            image.remove();
 97        } else {
 98            cbParams = CordovaInternal::format(QString("file://localhost") + absolutePath);
 99        }
100    }
101
102    this->callback(_lastScId, cbParams);
103
104    _lastEcId = _lastScId = 0;
105}
106
107void Camera::takePicture(int scId, int ecId, int quality, int destinationType, int/*sourceType*/, int targetWidth, int targetHeight, int encodingType,
108                         int/*mediaType*/, bool/*allowEdit*/, bool/*correctOrientation*/, bool/*saveToPhotoAlbum*/, const QVariantMap &/*popoverOptions*/, int/*cameraDirection*/) {
109    if (_camera.isNull()) {
110        _camera = QSharedPointer<QCamera>(new QCamera());
111    }
112
113    if (((_lastScId || _lastEcId) && (_lastScId != scId && _lastEcId != ecId)) || !_camera->isAvailable() || _camera->lockStatus() != QCamera::Unlocked) {
114        this->cb(_lastEcId, "Device is busy");
115        return;
116    }
117
118    _options.clear();
119    _options.insert("quality", quality);
120    _options.insert("destinationType", destinationType);
121    _options.insert("targetWidth", targetWidth);
122    _options.insert("targetHeight", targetHeight);
123    _options.insert("encodingType", encodingType);
124
125    _lastScId = scId;
126    _lastEcId = ecId;
127
128    QString path = m_cordova->get_app_dir() + "/../qml/CaptureWidget.qml";
129
130    // TODO: relative url
131    QString qml = QString(code).arg(CordovaInternal::format(path));
132    m_cordova->execQML(qml);
133}
134
135void Camera::cancel() {
136    m_cordova->execQML("CordovaWrapper.global.cameraPluginWidget.destroy()");
137    this->cb(_lastEcId, "canceled");
138
139    _lastEcId = _lastScId = 0;
140}