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/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Tests the integration between CubicBezierWidget and CubicBezierPresets

const {
  CubicBezierWidget,
} = require("resource://devtools/client/shared/widgets/CubicBezierWidget.js");
const {
  PRESETS,
} = require("resource://devtools/client/shared/widgets/CubicBezierPresets.js");

const TEST_URI = CHROME_URL_ROOT + "doc_cubic-bezier-01.html";

add_task(async function () {
  const { host, win, doc } = await createHost("bottom", TEST_URI);

  const container = doc.querySelector("#cubic-bezier-container");
  const w = new CubicBezierWidget(
    container,
    PRESETS["ease-in"]["ease-in-sine"]
  );
  w.presets.refreshMenu(PRESETS["ease-in"]["ease-in-sine"]);

  const rect = w.curve.getBoundingClientRect();
  rect.graphTop = rect.height * w.bezierCanvas.padding[0];

  await adjustingBezierUpdatesPreset(w, win, doc, rect);
  await selectingPresetUpdatesBezier(w, win, doc, rect);

  w.destroy();
  host.destroy();
});

function adjustingBezierUpdatesPreset(widget, win, doc, rect) {
  info("Checking that changing the bezier refreshes the preset menu");

  is(
    widget.presets.activeCategory,
    doc.querySelector("#ease-in"),
    "The selected category is ease-in"
  );

  is(
    widget.presets._activePreset,
    doc.querySelector("#ease-in-sine"),
    "The selected preset is ease-in-sine"
  );

  info("Generating custom bezier curve by dragging");
  widget._onPointMouseDown({ target: widget.p1 });
  doc.onmousemove({ pageX: rect.left, pageY: rect.graphTop });
  doc.onmouseup();

  is(
    widget.presets.activeCategory,
    doc.querySelector("#ease-in"),
    "The selected category is still ease-in"
  );

  is(widget.presets._activePreset, null, "There is no active preset");
}

async function selectingPresetUpdatesBezier(widget, win, doc, rect) {
  info("Checking that selecting a preset updates bezier curve");

  info("Listening for the new coordinates event");
  const onNewCoordinates = widget.presets.once("new-coordinates");
  const onUpdated = widget.once("updated");

  info("Click a preset");
  const preset = doc.querySelector("#ease-in-sine");
  widget.presets._onPresetClick({ currentTarget: preset });

  await onNewCoordinates;
  ok(true, "The preset widget fired the new-coordinates event");

  const bezier = await onUpdated;
  ok(true, "The bezier canvas fired the updated event");

  is(
    bezier.P1[0],
    preset.coordinates[0],
    "The new P1 time coordinate is correct"
  );
  is(
    bezier.P1[1],
    preset.coordinates[1],
    "The new P1 progress coordinate is correct"
  );
  is(bezier.P2[0], preset.coordinates[2], "P2 time coordinate is correct ");
  is(bezier.P2[1], preset.coordinates[3], "P2 progress coordinate is correct");
}