Add camera plugin.

README.md

@@ -40,26 +40,28 @@ sudo pip install PyMuPDF
 ```
 M-x eaf-open
 ```
-| App          | Key                | Event                                    |
-| --------     | :-----:            | :----                                    |
-| Browser      | Left Button        | Open link current tab                    |
-|              | Ctrl + Left Button | Open link in new tab                     |
-| Image Viewer | j                  | Load next image in current directory     |
-|              | k                  | Load previous image in current directory |
-| Video Player | Space              | Play or Pause                            |
-|              | h                  | Seek backward                            |
-|              | l                  | Seek forward                             |
-| Pdf Viewer   | j                  | Scroll up                                |
-|              | k                  | Scroll down                              |
-|              | Space              | Scroll up page                           |
-|              | b                  | Scroll down page                         |
-|              | ,                  | Scroll to end                            |
-|              | .                  | Scroll to home                           |
-|              | t                  | Switch scale mode                        |
-|              | -                  | Zoom out                                 |
-|              | =                  | Zoom in                                  |
-|              | 0                  | Zoomn reset                              |
-|              | g                  | Goto page                                |
+| App          | Key                | Event                                    | Way to open       |
+| --------     | :-----:            | :----                                    | :----             |
+| Browser      | Left Button        | Open link current tab                    | URL               |
+|              | Ctrl + Left Button | Open link in new tab                     |                   |
+| Image Viewer | j                  | Load next image in current directory     | Image file path   |
+|              | k                  | Load previous image in current directory |                   |
+| Video Player | Space              | Play or Pause                            | Video file path   |
+|              | h                  | Seek backward                            |                   |
+|              | l                  | Seek forward                             |                   |
+| Pdf Viewer   | j                  | Scroll up                                | Pdf file path     |
+|              | k                  | Scroll down                              |                   |
+|              | Space              | Scroll up page                           |                   |
+|              | b                  | Scroll down page                         |                   |
+|              | ,                  | Scroll to end                            |                   |
+|              | .                  | Scroll to home                           |                   |
+|              | t                  | Switch scale mode                        |                   |
+|              | -                  | Zoom out                                 |                   |
+|              | =                  | Zoom in                                  |                   |
+|              | 0                  | Zoomn reset                              |                   |
+|              | g                  | Goto page                                |                   |
+| Camera       |                    |                                          | Type 'eaf-camera' |
+| Demo         |                    |                                          | Type 'eaf-demo'   |
 
 ### Why this awesome framework can't works with MacOS?
 There are mainly three obstacles:

app/camera/buffer.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (C) 2018 Andy Stewart
+#
+# Author:     Andy Stewart <lazycat.manatee@gmail.com>
+# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from PyQt5.QtCore import Qt, QSizeF
+from PyQt5.QtGui import QBrush
+from PyQt5.QtGui import QColor
+from PyQt5.QtMultimedia import QCameraInfo, QCamera
+from PyQt5.QtMultimediaWidgets import QGraphicsVideoItem
+from PyQt5.QtWidgets import QGraphicsScene, QGraphicsView
+from PyQt5.QtWidgets import QWidget, QVBoxLayout
+from core.buffer import Buffer
+
+class CameraBuffer(Buffer):
+    def __init__(self, buffer_id, url):
+        Buffer.__init__(self, buffer_id, url, True, QColor(0, 0, 0, 255))
+
+        self.add_widget(CameraWidget(QColor(0, 0, 0, 255)))
+
+class CameraWidget(QWidget):
+
+    def __init__(self, background_color):
+        QWidget.__init__(self)
+
+        self.scene = QGraphicsScene(self)
+        self.scene.setBackgroundBrush(QBrush(background_color))
+        self.graphics_view = QGraphicsView(self.scene)
+        self.graphics_view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
+        self.graphics_view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
+        self.graphics_view.setFrameStyle(0)
+        self.graphics_view.setStyleSheet("QGraphicsView {background: transparent; border: 3px; outline: none;}")
+        self.video_item = QGraphicsVideoItem()
+        self.scene.addItem(self.video_item)
+
+        self.layout = QVBoxLayout(self)
+        self.layout.setContentsMargins(0, 0, 0, 0)
+        self.layout.addWidget(self.graphics_view)
+
+        self.available_cameras = QCameraInfo.availableCameras()
+
+        # Set the default camera.
+        self.select_camera(0)
+
+    def resizeEvent(self, event):
+        self.video_item.setSize(QSizeF(event.size().width(), event.size().height()))
+        QWidget.resizeEvent(self, event)
+
+    def select_camera(self, i):
+        self.camera = QCamera(self.available_cameras[i])
+        self.camera.setViewfinder(self.video_item)
+        self.camera.setCaptureMode(QCamera.CaptureStillImage)
+        self.camera.start()
+
+if __name__ == "__main__":
+    from PyQt5.QtWidgets import QApplication
+    import sys
+    import signal
+    app = QApplication(sys.argv)
+
+    test = CameraWidget(QColor(0, 0, 0, 255))
+    test.show()
+
+    signal.signal(signal.SIGINT, signal.SIG_DFL)
+    sys.exit(app.exec_())

eaf.py

@@ -55,6 +55,12 @@ class EAF(dbus.service.Object):
                 self.create_buffer(buffer_id, DemoBuffer(buffer_id, url))
             except ImportError:
                 return "Something wrong when import app.demo.buffer"
+        elif url == "eaf-camera":
+            try:
+                from app.camera.buffer import CameraBuffer
+                self.create_buffer(buffer_id, CameraBuffer(buffer_id, url))
+            except ImportError:
+                return "Something wrong when import app.camera.buffer"
         else:
             url = os.path.expanduser(url)