text: #-----------------------------------------------------------------------------
  # Copyright (c) 2012 - 2017, Anaconda, Inc. All rights reserved.
  #
  # Powered by the Bokeh Development Team.
  #
  # The full license is in the file LICENSE.txt, distributed with this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Boilerplate
  #-----------------------------------------------------------------------------
  import pytest ; pytest
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  # Standard library imports
  import time
  
  # Bokeh imports
  from bokeh._testing.util.compare import cds_data_almost_equal
  from bokeh._testing.util.selenium import RECORD
  from bokeh.layouts import column
  from bokeh.models import (
      Circle,
      ColumnDataSource,
      CustomAction,
      CustomJS,
      Div,
      MultiLine,
      Plot,
      PolyDrawTool,
      Range1d,
  )
  
  #-----------------------------------------------------------------------------
  # Tests
  #-----------------------------------------------------------------------------
  
  pytest_plugins = (
      "bokeh._testing.plugins.project",
  )
  
  def _make_plot(num_objects=0, drag=True, vertices=False):
      source = ColumnDataSource(dict(xs=[[1, 2]], ys=[[1, 1]]))
      plot = Plot(plot_height=400, plot_width=400, x_range=Range1d(0, 3), y_range=Range1d(0, 3), min_border=0)
      renderer = plot.add_glyph(source, MultiLine(xs='xs', ys='ys'))
      tool = PolyDrawTool(num_objects=num_objects, drag=drag, renderers=[renderer])
      if vertices:
          psource = ColumnDataSource(dict(x=[], y=[]))
          prenderer = plot.add_glyph(psource, Circle(x='x', y='y', size=10))
          tool.vertex_renderer = prenderer
      plot.add_tools(tool)
      plot.toolbar.active_multi = tool
      code = RECORD("xs", "source.data.xs", final=False) + RECORD("ys", "source.data.ys")
      plot.add_tools(CustomAction(callback=CustomJS(args=dict(source=source), code=code)))
      plot.toolbar_sticky = False
      return plot
  
  def _make_server_plot(expected):
      def modify_doc(doc):
          source = ColumnDataSource(dict(xs=[[1, 2]], ys=[[1, 1]]))
          plot = Plot(plot_height=400, plot_width=400, x_range=Range1d(0, 3), y_range=Range1d(0, 3), min_border=0)
          renderer = plot.add_glyph(source, MultiLine(xs='xs', ys='ys'))
          tool = PolyDrawTool(renderers=[renderer])
          plot.add_tools(tool)
          plot.toolbar.active_multi = tool
          div = Div(text='False')
          def cb(attr, old, new):
              if cds_data_almost_equal(new, expected):
                  div.text = 'True'
          source.on_change('data', cb)
          code = RECORD("matches", "div.text")
          plot.add_tools(CustomAction(callback=CustomJS(args=dict(div=div), code=code)))
          doc.add_root(column(plot, div))
      return modify_doc
  
  
  @pytest.mark.selenium
  class Test_PolyDrawTool(object):
  
      def test_selected_by_default(self, single_plot_page) -> None:
          plot = _make_plot()
  
          page = single_plot_page(plot)
  
          button = page.get_toolbar_button('poly-draw')
          assert 'active' in button.get_attribute('class')
  
          assert page.has_no_console_errors()
  
      def test_can_be_deselected_and_selected(self, single_plot_page) -> None:
          plot = _make_plot()
  
          page = single_plot_page(plot)
  
          # Check is active
          button = page.get_toolbar_button('poly-draw')
          assert 'active' in button.get_attribute('class')
  
          # Click and check is not active
          button = page.get_toolbar_button('poly-draw')
          button.click()
          assert 'active' not in button.get_attribute('class')
  
          # Click again and check is active
          button = page.get_toolbar_button('poly-draw')
          button.click()
          assert 'active' in button.get_attribute('class')
  
          assert page.has_no_console_errors()
  
      def test_double_click_triggers_draw(self, single_plot_page) -> None:
          plot = _make_plot()
  
          page = single_plot_page(plot)
  
          # ensure double clicking adds a poly
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.5)
          page.click_custom_action()
  
          expected = {"xs": [[1, 2], [1.6216216216216217, 2.4324324324324325]],
                      "ys": [[1, 1], [1.5, 0.75]]}
          assert cds_data_almost_equal(page.results, expected)
  
          assert page.has_no_console_errors()
  
      def test_click_snaps_to_vertex(self, single_plot_page) -> None:
          plot = _make_plot(vertices=True)
  
          page = single_plot_page(plot)
  
          # ensure double clicking adds a poly
          page.double_click_canvas_at_position(200, 200)
          page.click_canvas_at_position(300, 300)
          time.sleep(0.5)
          page.double_click_canvas_at_position(201, 201)
          time.sleep(0.5)
          page.click_custom_action()
  
          expected = {"xs": [[1, 2], [1.6216216216216217, 2.4324324324324325, 1.6216216216216217]],
                      "ys": [[1, 1], [1.5, 0.75, 1.5]]}
          assert cds_data_almost_equal(page.results, expected)
  
          assert page.has_no_console_errors()
  
      def test_drag_moves_multi_line(self, single_plot_page) -> None:
          plot = _make_plot()
  
          page = single_plot_page(plot)
  
          # ensure clicking adds a point
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.4) # hammerJS click timeout
          page.drag_canvas_at_position(200, 200, 70, 50)
          page.click_custom_action()
  
          expected = {"xs": [[1, 2], [2.1891891891891895, 3]],
                      "ys": [[1, 1], [1.125, 0.375]]}
          assert cds_data_almost_equal(page.results, expected)
  
          assert page.has_no_console_errors()
  
      def test_drag_does_not_move_multi_line(self, single_plot_page) -> None:
          plot = _make_plot(drag=False)
  
          page = single_plot_page(plot)
  
          # ensure clicking adds a point
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.4) # hammerJS click timeout
          page.drag_canvas_at_position(200, 200, 70, 53)
          page.click_custom_action()
  
          expected = {"xs": [[1, 2], [1.6216216216216217, 2.4324324324324325]],
                      "ys": [[1, 1], [1.5, 0.75]] }
          assert cds_data_almost_equal(page.results, expected)
  
          assert page.has_no_console_errors()
  
      def test_num_object_limits_multi_lines(self, single_plot_page) -> None:
          plot = _make_plot(num_objects=1)
  
          page = single_plot_page(plot)
  
          # ensure clicking adds a point
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.4) # hammerJS click timeout
          page.drag_canvas_at_position(200, 200, 70, 50)
          page.click_custom_action()
  
          expected = {"xs": [[2.1891891891891895, 3]],
                      "ys": [[1.125, 0.375]]}
          assert cds_data_almost_equal(page.results, expected)
  
          assert page.has_no_console_errors()
  
      def test_poly_draw_syncs_to_server(self, bokeh_server_page) -> None:
          expected = {"xs": [[1, 2], [1.6216216216216217, 2.4324324324324325]],
                      "ys": [[1, 1], [1.5, 0.75]]}
  
          page = bokeh_server_page(_make_server_plot(expected))
  
          # ensure double clicking adds a poly
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.5)
  
          page.click_custom_action()
          assert page.results == {"matches": "True"}
  
      # TODO (bev) Fix up after GH CI switch
      @pytest.mark.skip
      def test_poly_drag_syncs_to_server(self, bokeh_server_page) -> None:
          expected = {"xs": [[1, 2], [2.1891891891891895, 3]],
                      "ys": [[1, 1], [1.125, 0.375]]}
  
          page = bokeh_server_page(_make_server_plot(expected))
  
          # ensure dragging move multi_line
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.4) # hammerJS click timeout
          page.drag_canvas_at_position(200, 200, 70, 50)
  
          page.click_custom_action()
          assert page.results == {"matches": "True"}
  
      def test_poly_delete_syncs_to_server(self, bokeh_server_page) -> None:
          expected = {"xs": [[1, 2]],
                      "ys": [[1, 1]]}
  
          page = bokeh_server_page(_make_server_plot(expected))
  
          page.double_click_canvas_at_position(200, 200)
          page.double_click_canvas_at_position(300, 300)
          time.sleep(0.4) # hammerJS click timeout
          page.click_canvas_at_position(200, 200)
          time.sleep(0.4) # hammerJS click timeout
          page.send_keys(u'\ue003') # Backspace
          time.sleep(0.4) # hammerJS click timeout
  
          page.click_custom_action()
          assert page.results == {"matches": "True"}
  