New media webplugin WIP

platypush/backend/http/static/css/source/common/elements/dropdown.scss

@@ -11,6 +11,12 @@
     .item {
         margin: 0 !important;
         padding: 1rem;
+        cursor: pointer;
+
+        &.disabled {
+            color: $dropdown-disabled-color;
+            cursor: initial;
+        }
 
         .icon {
             margin: 0 .75rem;

platypush/backend/http/static/css/source/common/vars.scss

@@ -96,6 +96,7 @@ $header-bottom: $default-bottom;
 
 //// Dropdown element
 $dropdown-bg: rgba(241,243,242,0.9) !default;
+$dropdown-disabled-color: #999 !default;
 $dropdown-shadow: 1px 1px 1px #bbb !default;
 
 //// Modal element

platypush/backend/http/static/css/source/webpanel/plugins/media/devices.scss

@@ -20,13 +20,18 @@
             .item {
                 display: flex;
                 align-items: center;
-                cursor: pointer;
 
                 .text {
                     text-align: left;
                     margin-left: 2rem;
                 }
 
+                &:first-child {
+                    border-bottom: $default-border-3;
+                    color: $devices-dropdown-refresh-fg;
+                    font-size: .8em;
+                }
+
                 &:hover {
                     background: $hover-bg
                 }

platypush/backend/http/static/css/source/webpanel/plugins/media/index.scss

@@ -20,8 +20,7 @@
 
         .item {
             display: flex;
-            align-item: center;
+            align-items: center;
-            cursor: pointer;
 
             .text {
                 margin-left: 1rem;

platypush/backend/http/static/css/source/webpanel/plugins/media/vars.scss

@@ -10,4 +10,5 @@ $control-time-color: #666;
 $empty-results-color: #506050;
 
 $devices-dropdown-z-index: 2;
+$devices-dropdown-refresh-fg: #666;
 

platypush/backend/http/static/js/elements/dropdown.js

@@ -18,7 +18,7 @@ Vue.component('dropdown', {
 
     methods: {
         clicked: function(item) {
-            if (item.click) {
+            if (item.click && !item.disabled) {
                 item.click();
             }
 
@@ -35,7 +35,6 @@ var clickHndl = function(event) {
     }
 
     var element = event.target;
-
     while (element) {
         if (element == openedDropdown) {
             return;

platypush/backend/http/static/js/plugins/media/devices.js

@@ -1,3 +1,6 @@
+// Will be filled by dynamically loading device scripts
+var mediaPlayers = {};
+
 Vue.component('media-devices', {
     template: '#tmpl-media-devices',
     props: {
@@ -9,12 +12,19 @@ Vue.component('media-devices', {
         return {
             showDevicesMenu: false,
             selectedDevice: {},
+            loading: false,
+            devices: [],
         };
     },
 
     computed: {
-        dropdownItems: function() {
+        staticItems: function() {
-            var items = [
+            return [
+                {
+                    text: 'Refresh',
+                    type: 'refresh',
+                    icon: 'sync-alt',
+                },
                 {
                     name: this.playerPlugin,
                     text: this.playerPlugin,
@@ -28,23 +38,91 @@ Vue.component('media-devices', {
                     icon: 'laptop',
                 },
             ];
+        },
+
+        dropdownItems: function() {
+            const items = this.staticItems.concat(
+                this.devices.map(dev => {
+                    return {
+                        name: dev.name,
+                        text: dev.name,
+                        type: dev.__type__,
+                        icon: dev.icon,
+                        iconClass: dev.iconClass,
+                        device: dev,
+                    };
+                })
+            );
 
             const self = this;
+
             const onClick = (item) => {
                 return () => {
+                    if (self.loading) {
+                        return;
+                    }
+
                     self.selectDevice(item);
                 };
             };
 
             for (var i=0; i < items.length; i++) {
+                if (items[i].type === 'refresh') {
+                    items[i].click = this.refreshDevices;
+                } else {
                     items[i].click = onClick(items[i]);
                 }
 
+                items[i].disabled = this.loading;
+            }
+
             return items;
         },
     },
 
     methods: {
+        refreshDevices: async function() {
+            if (this.loading) {
+                return;
+            }
+
+            this.loading = true;
+            var devices;
+
+            try {
+                const promises = Object.entries(mediaPlayers).map((p) => {
+                    const player = p[0];
+                    const handler = p[1];
+
+                    return new Promise((resolve, reject) => {
+                        handler.scan().then(devs => {
+                            for (var i=0; i < devs.length; i++) {
+                                devs[i].__type__ = player;
+
+                                if (handler.icon) {
+                                    devs[i].icon = handler.icon instanceof Function ? handler.icon(devs[i]) : handler.icon;
+                                } else if (handler.iconClass) {
+                                    devs[i].iconClass = handler.iconClass instanceof Function ? handler.iconClass(devs[i]) : handler.iconClass;
+                                }
+                            }
+
+                            resolve(devs);
+                        });
+                    });
+                });
+
+                this.devices = (await Promise.all(promises)).reduce((list, devs) => {
+                    for (const d of devs) {
+                        list.push(d);
+                    }
+
+                    return list;
+                }, []);
+            } finally {
+                this.loading = false;
+            }
+        },
+
         selectDevice: function(device) {
             this.selectedDevice = device;
             this.bus.$emit('selected-device', device);
@@ -57,6 +135,7 @@ Vue.component('media-devices', {
 
     created: function() {
         this.selectDevice(this.dropdownItems.filter(_ => _.type === 'local')[0]);
+        this.refreshDevices();
     },
 });
 

platypush/backend/http/static/js/plugins/media/players/chromecast.js

@@ -0,0 +1,23 @@
+mediaPlayers.chromecast = {
+    iconClass: function(item) {
+        if (item.type === 'audio') {
+            return 'fa fa-volume-up';
+        } else {
+            return 'fab fa-chromecast';
+        }
+    },
+
+    scan: async function() {
+        return await request('media.chromecast.get_chromecasts');
+    },
+
+    status: function(device) {
+    },
+
+    play: function(item) {
+    },
+
+    stop: function() {
+    },
+};
+

platypush/backend/http/templates/elements/dropdown.html

@@ -1,8 +1,9 @@
 <script type="text/x-template" id="tmpl-dropdown">
     <div class="dropdown" :id="id" :class="{hidden: !visible}">
-        <div class="row item" v-for="item in items" @click="clicked(item)">
+        <div class="row item" :class="{disabled: item.disabled}" v-for="item in items" @click="clicked(item)">
             <div class="col-1 icon">
                 <i class="fa" :class="['fa-' + (item.icon || '')]" v-if="item.icon"></i>
+                <i :class="item.iconClass" v-else-if="item.iconClass"></i>
                 <img src="item.img" v-else-if="item.image">
             </div>
             <div class="col-11 text" v-text="item.text"></div>

platypush/backend/http/templates/plugins/media/devices.html

@@ -1,13 +1,18 @@
 <script type="application/javascript" src="{{ url_for('static', filename='js/plugins/media/devices.js') }}"></script>
 
+{% for script in utils.search_directory(static_folder + '/js/plugins/media/players', 'js', recursive=True) %}
+<script type="application/javascript" src="{{ url_for('static', filename='js/plugins/media/players/' + script) }}"></script>
+{% endfor %}
+
 <script type="text/x-template" id="tmpl-media-devices">
     <div class="devices">
         <button type="button"
                 class="devices"
-                :class="{selected: selectedDevice.type !== 'local'}"
+                :class="{selected: selectedDevice.type !== 'local' && selectedDevice.type !== 'browser'}"
                 :title="'Play on ' + (selectedDevice.name || '')"
                 @click="openDevicesMenu">
-            <i class="fa" :class="'fa-' + (selectedDevice.icon || '')"></i>
+            <i class="fa" :class="'fa-' + (selectedDevice.icon || '')" v-if="selectedDevice.icon"></i>
+            <i :class="selectedDevice.iconClass" v-else-if="selectedDevice.iconClass"></i>
         </button>
 
         <dropdown ref="menu" :items="dropdownItems">

platypush/plugins/media/chromecast.py

@@ -45,14 +45,35 @@ class MediaChromecastPlugin(MediaPlugin):
 
 
     @action
-    def get_chromecasts(self):
+    def get_chromecasts(self, tries=2, retry_wait=10, timeout=60,
+                        blocking=True, callback=None):
         """
         Get the list of Chromecast devices
+
+        :param tries: Number of retries (default: 2)
+        :type tries: int
+
+        :param retry_wait: Number of seconds between retries (default: 10 seconds)
+        :type retry_wait: int
+
+        :param timeout: Timeout before failing the call (default: 60 seconds)
+        :type timeout: int
+
+        :param blocking: If true, then the function will block until all the Chromecast
+            devices have been scanned. If false, then the provided callback function will be
+            invoked when a new device is discovered
+        :type blocking: bool
+
+        :param callback: If blocking is false, then you can provide a callback function that
+            will be invoked when a new device is discovered
+        :type callback: func
         """
 
         self.chromecasts.update({
             cast.device.friendly_name: cast
-            for cast in pychromecast.get_chromecasts()
+            for cast in pychromecast.get_chromecasts(tries=tries, retry_wait=retry_wait,
+                                                     timeout=timeout, blocking=blocking,
+                                                     callback=callback)
         })
 
         return [ {
@@ -81,7 +102,7 @@ class MediaChromecastPlugin(MediaPlugin):
         } for cc in self.chromecasts.values() ]
 
 
-    def get_chromecast(self, chromecast=None, n_tries=3):
+    def get_chromecast(self, chromecast=None, n_tries=2):
         if isinstance(chromecast, pychromecast.Chromecast):
             return chromecast
 
@@ -307,8 +328,8 @@ class MediaChromecastPlugin(MediaPlugin):
     @action
     def disable_subtitles(self, chromecast=None, track_id=None):
         mc = self.get_chromecast(chromecast or self.chromecast).media_controller
-        if track_name:
+        if track_id:
-            return mc.disable_subtitle(track_name)
+            return mc.disable_subtitle(track_id)
         elif mc.current_subtitle_tracks:
             return mc.disable_subtitle(mc.current_subtitle_tracks[0])
 
@@ -319,9 +340,9 @@ class MediaChromecastPlugin(MediaPlugin):
         cur_subs = mc.status.status.current_subtitle_tracks
 
         if cur_subs:
-            return self.disable_subtitle(chromecast, cur_subs[0])
+            return self.disable_subtitles(chromecast, cur_subs[0])
         else:
-            return self.enable_subtitle(chromecast, all_subs[0].get('trackId'))
+            return self.enable_subtitles(chromecast, all_subs[0].get('trackId'))
 
 
     @action