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<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>MozButton Tests</title>
  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
  <script type="module" src="chrome://global/content/elements/moz-button.mjs"></script>
  <link rel="stylesheet" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
  <link rel="stylesheet" href="chrome://global/skin/design-system/tokens-brand.css">
  <link rel="stylesheet" href="chrome://global/skin/design-system/text-and-typography.css">
<style>
.four::part(button),
.five::part(button),
.six::part(button) {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' width='16' height='16' fill='context-fill' fill-opacity='context-fill-opacity'%3E%3Cpath d='M3 7 1.5 7l-.5.5L1 9l.5.5 1.5 0 .5-.5 0-1.5z'/%3E%3Cpath d='m8.75 7-1.5 0-.5.5 0 1.5.5.5 1.5 0 .5-.5 0-1.5z'/%3E%3Cpath d='M14.5 7 13 7l-.5.5 0 1.5.5.5 1.5 0L15 9l0-1.5z'/%3E%3C/svg%3E");
}
</style>
  <script>
    const { AddonManager } = ChromeUtils.importESModule(
      "resource://gre/modules/AddonManager.sys.mjs"
    );
    // Always run tests with the light theme for consistency and to avoid from false
    // test passes arising from the fact that --icon-color and --button-text-color
    // have the same value in the dark theme.
    add_setup(async function () {
      // Developer Edition enables the wrong theme by default. Make sure
      // the ordinary default theme is enabled.
      let theme = await AddonManager.getAddonByID("default-theme@mozilla.org");
      await theme.enable();

      await SpecialPowers.pushPrefEnv({
        set: [
          ["ui.systemUsesDarkTheme", 0],
        ],
      });
      // Triggers a refresh to ensure new theme applied.
      await new Promise(resolve => requestAnimationFrame(resolve));
      ok(window.matchMedia("(prefers-color-scheme: light)").matches, "Light theme is active.");

      // Move mouse to the bottom of the test frame to prevent hover on buttons.
      let mouseTrap = document.getElementById("mouse-trap");
      await synthesizeMouseAtCenter(mouseTrap, { type: "mousemove" });
      ok(mouseTrap.matches(":hover"), "The mouse trap is hovered");
    });

    function normalizeColor(val, computedStyles) {
      if (val.includes("currentColor")) {
        val = val.replaceAll("currentColor", computedStyles.color);
      }
      if (val.startsWith("light-dark")) {
        let [, light, dark] = val.match(/light-dark\(([^,]+),\s*([^)]+)\)/);
        if (light && dark) {
          val = window.matchMedia("(prefers-color-scheme: dark)").matches ? dark : light;
        }
      }
      try {
        let { r, g, b, a } = InspectorUtils.colorToRGBA(val);
        return `rgba(${r}, ${g}, ${b}, ${a})`;
      } catch (e) {
        info(val);
        throw e;
      }
    }

    function assertButtonPropertiesMatch(el, propertyToCssVar) {
      let elStyles = el.buttonEl ? getComputedStyle(el.buttonEl) : getComputedStyle(el);
      for (let [property, cssVar] of Object.entries(propertyToCssVar)) {
        let propertyVal = elStyles[property];
        let cssVarVal = cssVar.startsWith("--") ? elStyles.getPropertyValue(cssVar) : cssVar;
        if (propertyVal.startsWith("rgb") || propertyVal.startsWith("#") || propertyVal.startsWith("color")) {
          propertyVal = normalizeColor(propertyVal, elStyles);
          cssVarVal = normalizeColor(cssVarVal, elStyles);
        }
        info(`${propertyVal} == ${cssVarVal}`);
        is(propertyVal, cssVarVal, `${property} should be ${cssVar}`);
      }
    }

    add_task(async function testButtonTypes() {
      let [...buttons] = document.querySelectorAll("moz-button");
      let [one, two, three, four, five, six, seven] = buttons;

      await Promise.all(buttons.map(btn => btn.updateComplete));

      is(one.textContent, "Test button", "Text is set");
      is(two.buttonEl.textContent.trim(), "Test button", "Text is set");
      is(three.textContent, "Test button", "Text is set");
      is(seven.buttonEl.textContent.trim(), "Test button", "Text is set");

      assertButtonPropertiesMatch(one, {
        backgroundColor: "--button-background-color",
        color: "--button-text-color",
        height: "--button-min-height",
      });
      assertButtonPropertiesMatch(two, {
        backgroundColor: "--button-background-color",
        color: "--button-text-color",
        height: "--button-min-height",
      });
      assertButtonPropertiesMatch(three, {
        backgroundColor: "--button-background-color-primary",
        color: "--button-text-color-primary",
        height: "--button-min-height",
      });
      assertButtonPropertiesMatch(four, {
        width: "--button-size-icon",
        height: "--button-size-icon",
        backgroundColor: "--button-background-color",
        fill: "--button-text-color",
      });
      assertButtonPropertiesMatch(five, {
        width: "--button-size-icon",
        height: "--button-size-icon",
        backgroundColor: "transparent",
        fill: "--button-text-color",
      });
      assertButtonPropertiesMatch(six, {
        width: "--button-size-icon",
        height: "--button-size-icon",
        backgroundColor: "transparent",
        fill: "--button-text-color",
      });
      assertButtonPropertiesMatch(seven, {
        backgroundColor: "--button-background-color",
        color: "--button-text-color",
        height: "--button-min-height",
      });

      buttons.forEach(btn => (btn.size = "small"));

      await Promise.all(buttons.map(btn => btn.updateComplete));

      assertButtonPropertiesMatch(one, {
        height: "--button-min-height-small",
      });
      assertButtonPropertiesMatch(two, {
        height: "--button-min-height-small",
      });
      assertButtonPropertiesMatch(three, {
        height: "--button-min-height-small",
      });
      assertButtonPropertiesMatch(four, {
        width: "--button-size-icon-small",
        height: "--button-size-icon-small",
      });
      assertButtonPropertiesMatch(five, {
        width: "--button-size-icon-small",
        height: "--button-size-icon-small",
      });
      assertButtonPropertiesMatch(six, {
        width: "--button-size-icon-small",
        height: "--button-size-icon-small",
      });
      assertButtonPropertiesMatch(seven, {
        height: "--button-min-height-small",
      });
    });

    add_task(async function testA11yAttributes() {
      let button = document.querySelector("moz-button");

      async function testProperty(propName, jsPropName = propName) {
        let propValue = `${propName} value`;
        ok(!button.buttonEl.hasAttribute(propName), `No ${propName} on inner button`);
        button.setAttribute(propName, propValue);

        await button.updateComplete;

        ok(!button.hasAttribute(propName), `moz-button ${propName} cleared`);
        is(button.buttonEl.getAttribute(propName), propValue, `${propName} added to inner button`);

        button[jsPropName] = null;
        await button.updateComplete;

        ok(!button.buttonEl.hasAttribute(propName), `${propName} cleared by setting property`);
      }

      await testProperty("title");
      await testProperty("aria-label", "ariaLabel");
    });

    add_task(async function testIconButtons() {
      let buttons = ["four", "five", "six", "seven", "eight", "nine"].map(
        className => document.querySelector(`.${className}`)
      );
      let [four, five, six, seven, eight, nine] = buttons;
      await Promise.all(buttons.map(btn => btn.updateComplete));

      function verifyBackgroundIcon(button) {
        let img = button.shadowRoot.querySelector("img");
        ok(!img, "button does not use an img element to display an icon");
        assertButtonPropertiesMatch(button, {
          fill: "--button-text-color",
          backgroundSize: "--icon-size-default",
        });
      }

      function verifyImageIcon({ button }) {
        let img = button.shadowRoot.querySelector("img");
        ok(img, "button uses an inner img element to display an icon");
        is(img.src, "chrome://global/skin/icons/edit.svg", "button displays the expected icon");
        assertButtonPropertiesMatch(img, {
          fill: "--button-text-color",
          width: "--icon-size-default",
          height: "--icon-size-default",
        });
      }

      verifyBackgroundIcon(four);
      verifyBackgroundIcon(five);
      verifyBackgroundIcon(six);

      verifyImageIcon({ button: seven });
      verifyImageIcon({ button: eight });
      verifyImageIcon({ button: nine });

      nine.textContent = "With text";
      // Ensure we've painted before checking styles
      await new Promise(resolve => requestAnimationFrame(resolve));
      verifyImageIcon({ button: nine, isLabelled: true });

      nine.textContent = "";
      // Ensure we've painted before checking styles
      await new Promise(resolve => requestAnimationFrame(resolve));
      verifyImageIcon({ button: nine, isLabelled: false });
    });
  </script>
</head>
<body>
  <style>
    .wrapper {
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 64px;
    }
  </style>
  <div class="wrapper">
    <div>
      <moz-button class="one">Test button</moz-button>
      <moz-button class="two" label="Test button"></moz-button>
      <moz-button class="three" type="primary">Test button</moz-button>
      <moz-button class="four" type="icon"></moz-button>
      <moz-button class="five" type="icon ghost"></moz-button>
      <moz-button class="six" type="ghost icon"></moz-button>
      <moz-button
        class="seven"
        label="Test button"
        iconsrc="chrome://global/skin/icons/edit.svg"
      ></moz-button>
      <moz-button
        class="eight"
        iconsrc="chrome://global/skin/icons/edit.svg"
      ></moz-button>
      <!-- Used to verify that empty space doesn't get treated as a label -->
      <moz-button
        class="nine"
        type="ghost"
        iconsrc="chrome://global/skin/icons/edit.svg"
      >   </moz-button>
    </div>
    <button id="mouse-trap">Mouse goes here</button>
  </div>
</body>
</html>