Merge 0d586dde2a into eda7444ca4

assets/js/embed.js

@@ -22,6 +22,8 @@ function get_playlist(plid) {
             player.on('ended', function () {
                 var url = new URL('https://example.com/embed/' + response.nextVideo);
 
+                const search_params = new URLSearchParams(location.search);
+
                 url.searchParams.set('list', plid);
                 if (!plid.startsWith('RD'))
                     url.searchParams.set('index', response.index);
@@ -33,6 +35,12 @@ function get_playlist(plid) {
                     url.searchParams.set('speed', video_data.params.speed);
                 if (video_data.params.local !== video_data.preferences.local)
                     url.searchParams.set('local', video_data.params.local);
+                if (search_params.get('widgetid') !== null)
+                    url.searchParams.set('widgetid', search_params.get('widgetid'));
+                if (search_params.get('origin') !== null)
+                    url.searchParams.set('origin', search_params.get('origin'));
+                if (search_params.get('enablejsapi') !== null)
+                    url.searchParams.set('enablejsapi', search_params.get('enablejsapi'));
 
                 location.assign(url.pathname + url.search);
             });
@@ -62,3 +70,160 @@ addEventListener('load', function (e) {
         });
     }
 });
+
+function return_message(message, target_window) {
+    if (target_window === undefined) {
+        target_window = window.parent;
+    }
+    let url_params = new URLSearchParams(location.search);
+    let widgetid = url_params.get('widgetid');
+    let additional_info = { from: 'invidious_control' };
+
+    if (widgetid !== null) {
+        additional_info.widgetid = widgetid;
+    }
+
+    if (message.message_kind === 'event') {
+        if (message.eventname === 'timeupdate' || message.eventname === 'loadedmetadata') {
+            additional_info['value'] = {
+                getvolume: player.volume(),
+                getduration: player.duration(),
+                getcurrenttime: player.currentTime(),
+                getplaystatus: player.paused(),
+                getplaybackrate: player.playbackRate(),
+                getloopstatus: player.loop(),
+                getmutestatus: player.muted(),
+                getfullscreenstatus: player.isFullscreen(),
+                getavailableplaybackrates: options.playbackRates,
+                gettitle: player_data.title,
+                getplaylistindex: video_data.index,
+                getplaylistid: video_data.plid
+            };
+        }
+    }
+
+    if (message.eventname === 'error') {
+        additional_info['value'] = { geterrorcode: player.error().code };
+    }
+
+    message = Object.assign(additional_info, message);
+    let target_origin = url_params.get('origin') || '*';
+    target_window.postMessage(message, target_origin);
+}
+
+function control_embed_iframe(message) {
+    const url_params = new URLSearchParams(location.search);
+    const origin = url_params.get('origin');
+    const origin_equal = origin === null || origin === message.origin;
+    if (origin_equal) {
+        const widgetid = url_params.get('widgetid');
+        const widgetid_equal = widgetid === message.data.widgetid;
+        const target_name_equal = message.data.target === 'invidious_control';
+        const eventname_string_check = typeof message.data.eventname === 'string';
+        if (widgetid_equal && target_name_equal && eventname_string_check) {
+            let message_return_value;
+            switch (message.data.eventname) {
+                case 'play':
+                    player.play();
+                    break;
+                case 'pause':
+                    player.pause();
+                    break;
+
+                case 'setvolume':
+                    player.volume(message.data.value);
+                    break;
+                case 'seek':
+                    const duration = player.duration();
+                    let newTime = helpers.clamp(message.data.value, 0, duration);
+                    if (player.paused() && player.currentTime() === 0) {
+                        player.play();
+                    }
+                    player.currentTime(newTime);
+                    break;
+                case 'setplaybackrate':
+                    player.playbackRate(message.data.value);
+                    break;
+                case 'setloopstatus':
+                    player.loop(message.data.value);
+                    break;
+                case 'requestfullscreen':
+                    player.requestFullscreen();
+                    break;
+                case 'exitfullscreen':
+                    player.exitFullscreen();
+                    break;
+
+                case 'getvolume':
+                    message_return_value = player.volume();
+                    break;
+                case 'getduration':
+                    message_return_value = player.duration();
+                    break;
+                case 'getcurrenttime':
+                    message_return_value = player.currentTime();
+                    break;
+                case 'getplaystatus':
+                    message_return_value = player.paused();
+                    break;
+                case 'getplaybackrate':
+                    message_return_value = player.playbackRate();
+                    break;
+                case 'getavailableplaybackrates':
+                    message_return_value = options.playbackRates;
+                    break;
+                case 'getloopstatus':
+                    message_return_value = player.loop();
+                    break;
+                case 'getmutestatus':
+                    message_return_value = player.muted();
+                    break;
+                case 'gettitle':
+                    message_return_value = player_data.title;
+                    break;
+                case 'getfullscreenstatus':
+                    message_return_value = player.isFullscreen();
+                    break;
+                case 'geterrorcode':
+                    message_return_value = player.error().code;
+                    break;
+                case 'getplaylistindex':
+                    message_return_value = video_data.index;
+                    break;
+                case 'getplaylistid':
+                    message_return_value = video_data.plid;
+                    break;
+                default:
+                    console.info("Unhandled event name: " + message.data.eventname);
+                    break;
+            }
+
+            if (message_return_value !== undefined) {
+                return_message({ command: message.data.eventname, value: message_return_value, message_kind: 'info_return' }, message.source);
+            }
+        }
+    }
+}
+
+if (new URLSearchParams(location.search).get('enablejsapi') === '1') {
+    window.addEventListener('message', control_embed_iframe);
+    const event_list = [
+        'ended', 
+        'error', 
+        'ratechange', 
+        'volumechange', 
+        'waiting', 
+        'timeupdate', 
+        'loadedmetadata', 
+        'play', 
+        'seeking', 
+        'seeked', 
+        'playerresize', 
+        'pause'
+    ];
+    event_list.forEach(event_name => {
+        player.on(event_name, function () { 
+            return_message({ message_kind: 'event', eventname: event_name }) 
+        });
+    });
+}