chore: import upstream snapshot with attribution

2026-07-13 13:10:28 +08:00
commit c2acfb5f2d
267 changed files with 15542 additions and 0 deletions
@@ -0,0 +1,70 @@
+from jinja2 import Environment, FileSystemLoader
+
+from tornado.web import RequestHandler
+
+from bokeh.application import Application
+from bokeh.application.handlers import FunctionHandler
+from bokeh.embed import server_document
+from bokeh.layouts import column
+from bokeh.models import ColumnDataSource, Slider
+from bokeh.plotting import figure
+from bokeh.server.server import Server
+from bokeh.themes import Theme
+
+from bokeh.sampledata.sea_surface_temperature import sea_surface_temperature
+
+env = Environment(loader=FileSystemLoader('templates'))
+server_url = "http://localhost:9090/"
+
+
+class IndexHandler(RequestHandler):
+    def get(self):
+        print("index ...")
+        template = env.get_template('bokeh_embed.html')
+        script = server_document(server_url + 'bkapp')
+        print(script)
+        self.write(template.render(script=script, template="Tornado"))
+        # self.write(html_content)
+
+
+def modify_doc(doc):
+    df = sea_surface_temperature.copy()
+    source = ColumnDataSource(data=df)
+
+    plot = figure(x_axis_type='datetime', y_range=(0, 25), y_axis_label='Temperature (Celsius)',
+                  title="Sea Surface Temperature at 43.18, -70.43")
+    plot.line('time', 'temperature', source=source)
+
+    def callback(attr, old, new):
+        if new == 0:
+            data = df
+        else:
+            data = df.rolling('{0}D'.format(new)).mean()
+        source.data = ColumnDataSource(data=data).data
+
+    slider = Slider(start=0, end=30, value=0, step=1, title="Smoothing by N Days")
+    slider.on_change('value', callback)
+
+    doc.add_root(column(slider, plot))
+
+    # doc.theme = Theme(filename="theme.yaml")
+
+
+bokeh_app = Application(FunctionHandler(modify_doc))
+
+# Setting num_procs here means we can't touch the IOLoop before now, we must
+# let Server handle that. If you need to explicitly handle IOLoops then you
+# will need to use the lower level BaseServer class.
+server = Server(
+    {'/bkapp': bokeh_app}, num_procs=1, port=9999,
+    extra_patterns=[('/', IndexHandler)]
+)
+server.start()
+
+if __name__ == '__main__':
+    from bokeh.util.browser import view
+
+    print('Opening Tornado app with embedded Bokeh application on ' + server_url)
+
+    server.io_loop.add_callback(view, server_url)
+    server.io_loop.start()