Add play, stop and pause methods to Play widget

jupyter-widgets · Dec 5, 2018 · 4f18a61 · 4f18a61
1 parent 1223d41
commit 4f18a61
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Showing 2 changed files with 28 additions and 0 deletions.
diff --git a/ipywidgets/widgets/widget_int.py b/ipywidgets/widgets/widget_int.py
@@ -235,6 +235,19 @@ class Play(_BoundedInt):
     _repeat = Bool(help="Whether the control will repeat in a continous loop.").tag(sync=True)
     show_repeat = Bool(True, help="Show the repeat toggle button in the widget.").tag(sync=True)
 
+    def _send_action(self, action):
+        self.send({'action': action})
+
+    def play(self):
+        self._send_action('play')
+
+    def stop(self):
+        self._send_action('stop')
+
+    def pause(self):
+        self._send_action('pause')
+
+
 class _BoundedIntRange(_IntRange):
     max = CInt(100, help="Max value").tag(sync=True)
     min = CInt(0, help="Min value").tag(sync=True)

diff --git a/packages/controls/src/widget_int.ts b/packages/controls/src/widget_int.ts
@@ -858,6 +858,7 @@ class PlayView extends DOMWidgetView {
         this.listenTo(this.model, 'change:_playing', this.update_playing);
         this.listenTo(this.model, 'change:_repeat', this.update_repeat);
         this.listenTo(this.model, 'change:show_repeat', this.update_repeat);
+        this.listenTo(this.model, 'msg:custom', this.on_custom_message);
         this.update_playing();
         this.update_repeat();
         this.update();
@@ -898,6 +899,20 @@ class PlayView extends DOMWidgetView {
         }
     }
 
+    on_custom_message(message) {
+        switch(message.action) {
+            case 'play':
+                this.playButton.click();
+                break;
+            case 'pause':
+                this.pauseButton.click();
+                break;
+            case 'stop':
+                this.stopButton.click();
+                break;
+        }
+    }
+
     playButton: HTMLButtonElement;
     pauseButton: HTMLButtonElement;
     stopButton: HTMLButtonElement;