browser_filter-editor-08.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Tests the Filter Editor Widget inputs increase/decrease value using

// arrow keys, applying multiplier using alt/shift on number-type filters

const {

  CSSFilterEditorWidget,

} = require("resource://devtools/client/shared/widgets/FilterWidget.js");

const FAST_VALUE_MULTIPLIER = 10;

const SLOW_VALUE_MULTIPLIER = 0.1;

const DEFAULT_VALUE_MULTIPLIER = 1;

const TEST_URI = CHROME_URL_ROOT + "doc_filter-editor-01.html";

add_task(async function () {

  const { doc } = await createHost("bottom", TEST_URI);

  const container = doc.querySelector("#filter-container");

  const initialValue = "blur(2px)";

  const widget = new CSSFilterEditorWidget(container, initialValue);

  let value = 2;

  triggerKey = triggerKey.bind(widget);

  info("Test simple arrow keys");

  triggerKey(40);

  value -= DEFAULT_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should decrease value using down arrow"

);

  triggerKey(38);

  value += DEFAULT_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should decrease value using down arrow"

);

  info("Test shift key multiplier");

  triggerKey(38, "shiftKey");

  value += FAST_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should increase value by fast multiplier using up arrow"

);

  triggerKey(40, "shiftKey");

  value -= FAST_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should decrease value by fast multiplier using down arrow"

);

  info("Test alt key multiplier");

  triggerKey(38, "altKey");

  value += SLOW_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should increase value by slow multiplier using up arrow"

);

  triggerKey(40, "altKey");

  value -= SLOW_VALUE_MULTIPLIER;

is(

    widget.getValueAt(0),

    `${value}px`,

    "Should decrease value by slow multiplier using down arrow"

);

  widget.destroy();

  triggerKey = null;

});

// Triggers the specified keyCode and modifier key on

// first filter's input

function triggerKey(key, modifier) {

  const filter = this.el.querySelector("#filters").children[0];

  const input = filter.querySelector("input");

  this._keyDown({

    target: input,

    keyCode: key,

    [modifier]: true,

    preventDefault() {},

});