feat(layout): improve flexLayout & fixed layout overlaps

src/cards/repo-card.js

@@ -5,6 +5,7 @@ const {
   getCardColors,
   flexLayout,
   wrapTextMultiline,
+  measureText,
 } = require("../common/utils");
 const I18n = require("../common/I18n");
 const Card = require("../common/Card");
@@ -61,20 +62,15 @@ const renderRepoCard = (repo, options = {}) => {
   });
 
   // returns theme based colors with proper overrides and defaults
-  const {
-    titleColor,
-    textColor,
-    iconColor,
-    bgColor,
-    borderColor,
-  } = getCardColors({
-    title_color,
-    icon_color,
-    text_color,
-    bg_color,
-    border_color,
-    theme,
-  });
+  const { titleColor, textColor, iconColor, bgColor, borderColor } =
+    getCardColors({
+      title_color,
+      icon_color,
+      text_color,
+      bg_color,
+      border_color,
+      theme,
+    });
 
   const totalStars = kFormatter(stargazers.totalCount);
   const totalForks = kFormatter(forkCount);
@@ -96,30 +92,38 @@ const renderRepoCard = (repo, options = {}) => {
 
   const svgLanguage = primaryLanguage
     ? `
-    <g data-testid="primary-lang" transform="translate(30, 0)">
+    <g data-testid="primary-lang">
       <circle data-testid="lang-color" cx="0" cy="-5" r="6" fill="${langColor}" />
       <text data-testid="lang-name" class="gray" x="15">${langName}</text>
     </g>
     `
     : "";
 
+  const iconSize = 16;
   const iconWithLabel = (icon, label, testid) => {
-    return `
-      <svg class="icon" y="-12" viewBox="0 0 16 16" version="1.1" width="16" height="16">
+    const iconSvg = `
+      <svg class="icon" y="-12" viewBox="0 0 16 16" version="1.1" width="${iconSize}" height="${iconSize}">
         ${icon}
       </svg>
-      <text data-testid="${testid}" class="gray" x="25">${label}</text>
     `;
+    const text = `<text data-testid="${testid}" class="gray">${label}</text>`;
+    return flexLayout({ items: [iconSvg, text], gap: 20 }).join("");
   };
+
   const svgStars =
     stargazers.totalCount > 0 &&
     iconWithLabel(icons.star, totalStars, "stargazers");
   const svgForks =
     forkCount > 0 && iconWithLabel(icons.fork, totalForks, "forkcount");
 
   const starAndForkCount = flexLayout({
-    items: [svgStars, svgForks],
-    gap: 65,
+    items: [svgLanguage, svgStars, svgForks],
+    sizes: [
+      measureText(langName, 12),
+      iconSize + measureText(`${totalStars}`, 12),
+      iconSize + measureText(`${totalForks}`, 12),
+    ],
+    gap: 25,
   }).join("");
 
   const card = new Card({
@@ -163,15 +167,8 @@ const renderRepoCard = (repo, options = {}) => {
         .join("")}
     </text>
 
-    <g transform="translate(0, ${height - 75})">
-      ${svgLanguage}
-
-      <g
-        data-testid="star-fork-group"
-        transform="translate(${primaryLanguage ? 155 - shiftText : 25}, 0)"
-      >
-        ${starAndForkCount}
-      </g>
+    <g transform="translate(30, ${height - 75})">
+      ${starAndForkCount}
     </g>
   `);
 };

src/cards/top-languages-card.js

@@ -7,6 +7,8 @@ const {
   getCardColors,
   flexLayout,
   lowercaseTrim,
+  measureText,
+  chunkArray,
 } = require("../common/utils");
 
 const DEFAULT_CARD_WIDTH = 300;
@@ -33,12 +35,12 @@ const createProgressTextNode = ({ width, color, name, progress }) => {
   `;
 };
 
-const createCompactLangNode = ({ lang, totalSize, x, y }) => {
+const createCompactLangNode = ({ lang, totalSize }) => {
   const percentage = ((lang.size / totalSize) * 100).toFixed(2);
   const color = lang.color || "#858585";
 
   return `
-    <g transform="translate(${x}, ${y})">
+    <g>
       <circle cx="5" cy="6" r="5" fill="${color}" />
       <text data-testid="lang-name" x="15" y="10" class='lang-name'>
         ${lang.name} ${percentage}%
@@ -47,25 +49,38 @@ const createCompactLangNode = ({ lang, totalSize, x, y }) => {
   `;
 };
 
-const createLanguageTextNode = ({ langs, totalSize, x, y }) => {
-  return langs.map((lang, index) => {
-    if (index % 2 === 0) {
-      return createCompactLangNode({
+const getLongestLang = (arr) =>
+  arr.reduce(
+    (savedLang, lang) =>
+      lang.name.length > savedLang.name.length ? lang : savedLang,
+    { name: "" },
+  );
+
+const createLanguageTextNode = ({ langs, totalSize }) => {
+  const longestLang = getLongestLang(langs);
+  const chunked = chunkArray(langs, langs.length / 2);
+  const layouts = chunked.map((array) => {
+    const items = array.map((lang, index) =>
+      createCompactLangNode({
         lang,
-        x,
-        y: 12.5 * index + y,
         totalSize,
         index,
-      });
-    }
-    return createCompactLangNode({
-      lang,
-      x: 150,
-      y: 12.5 + 12.5 * index,
-      totalSize,
-      index,
-    });
+      }),
+    );
+    return flexLayout({
+      items,
+      gap: 25,
+      direction: "column",
+    }).join("");
   });
+
+  const percent = ((longestLang.size / totalSize) * 100).toFixed(2);
+  const minGap = 150;
+  const maxGap = 20 + measureText(`${longestLang.name} ${percent}%`, 11);
+  return flexLayout({
+    items: layouts,
+    gap: maxGap < minGap ? minGap : maxGap,
+  }).join("");
 };
 
 /**
@@ -132,12 +147,14 @@ const renderCompactLayout = (langs, width, totalLanguageSize) => {
       <rect x="0" y="0" width="${offsetWidth}" height="8" fill="white" rx="5" />
     </mask>
     ${compactProgressBar}
-    ${createLanguageTextNode({
-      x: 0,
-      y: 25,
-      langs,
-      totalSize: totalLanguageSize,
-    }).join("")}
+
+    <g transform="translate(0, 25)">
+      ${createLanguageTextNode({
+        langs,
+        totalSize: totalLanguageSize,
+        width,
+      })}
+    </g>
   `;
 };
 

src/common/utils.js

@@ -89,21 +89,26 @@ function request(data, headers) {
 
 /**
  *
- * @param {String[]} items
+ * @param {string[]} items
  * @param {Number} gap
- * @param {string} direction
+ * @param {"column" | "row"} direction
+ *
+ * @returns {string[]}
  *
  * @description
  * Auto layout utility, allows us to layout things
  * vertically or horizontally with proper gaping
  */
-function flexLayout({ items, gap, direction }) {
+function flexLayout({ items, gap, direction, sizes = [] }) {
+  let lastSize = 0;
   // filter() for filtering out empty strings
   return items.filter(Boolean).map((item, i) => {
-    let transform = `translate(${gap * i}, 0)`;
+    const size = sizes[i] || 0;
+    let transform = `translate(${lastSize}, 0)`;
     if (direction === "column") {
-      transform = `translate(0, ${gap * i})`;
+      transform = `translate(0, ${lastSize})`;
     }
+    lastSize += size + gap;
     return `<g transform="${transform}">${item}</g>`;
   });
 }
@@ -232,6 +237,26 @@ function measureText(str, fontSize = 10) {
 }
 const lowercaseTrim = (name) => name.toLowerCase().trim();
 
+/**
+ * @template T
+ * @param {Array<T>} arr
+ * @param {number} perChunk
+ * @returns {Array<T>}
+ */
+function chunkArray(arr, perChunk) {
+  return arr.reduce((resultArray, item, index) => {
+    const chunkIndex = Math.floor(index / perChunk);
+
+    if (!resultArray[chunkIndex]) {
+      resultArray[chunkIndex] = []; // start a new chunk
+    }
+
+    resultArray[chunkIndex].push(item);
+
+    return resultArray;
+  }, []);
+}
+
 module.exports = {
   renderError,
   kFormatter,
@@ -250,4 +275,5 @@ module.exports = {
   CONSTANTS,
   CustomError,
   lowercaseTrim,
+  chunkArray,
 };

tests/flexLayout.test.js

@@ -0,0 +1,46 @@
+const { flexLayout } = require("../src/common/utils");
+
+describe("flexLayout", () => {
+  it("should work with row & col layouts", () => {
+    const layout = flexLayout({
+      items: ["<text>1</text>", "<text>2</text>"],
+      gap: 60,
+    });
+
+    expect(layout).toStrictEqual([
+      `<g transform="translate(0, 0)"><text>1</text></g>`,
+      `<g transform="translate(60, 0)"><text>2</text></g>`,
+    ]);
+
+    const columns = flexLayout({
+      items: ["<text>1</text>", "<text>2</text>"],
+      gap: 60,
+      direction: "column",
+    });
+
+    expect(columns).toStrictEqual([
+      `<g transform="translate(0, 0)"><text>1</text></g>`,
+      `<g transform="translate(0, 60)"><text>2</text></g>`,
+    ]);
+  });
+
+  it("should work with sizes", () => {
+    const layout = flexLayout({
+      items: [
+        "<text>1</text>",
+        "<text>2</text>",
+        "<text>3</text>",
+        "<text>4</text>",
+      ],
+      gap: 20,
+      sizes: [200, 100, 55, 25],
+    });
+
+    expect(layout).toStrictEqual([
+      `<g transform="translate(0, 0)"><text>1</text></g>`,
+      `<g transform="translate(220, 0)"><text>2</text></g>`,
+      `<g transform="translate(340, 0)"><text>3</text></g>`,
+      `<g transform="translate(415, 0)"><text>4</text></g>`,
+    ]);
+  });
+});

tests/renderRepoCard.test.js

@@ -89,36 +89,6 @@ describe("Test renderRepoCard", () => {
     );
   });
 
-  it("should shift the text position depending on language length", () => {
-    document.body.innerHTML = renderRepoCard({
-      ...data_repo.repository,
-      primaryLanguage: {
-        ...data_repo.repository.primaryLanguage,
-        name: "Jupyter Notebook",
-      },
-    });
-
-    expect(queryByTestId(document.body, "primary-lang")).toBeInTheDocument();
-    expect(queryByTestId(document.body, "star-fork-group")).toHaveAttribute(
-      "transform",
-      "translate(155, 0)",
-    );
-
-    // Small lang
-    document.body.innerHTML = renderRepoCard({
-      ...data_repo.repository,
-      primaryLanguage: {
-        ...data_repo.repository.primaryLanguage,
-        name: "Ruby",
-      },
-    });
-
-    expect(queryByTestId(document.body, "star-fork-group")).toHaveAttribute(
-      "transform",
-      "translate(125, 0)",
-    );
-  });
-
   it("should hide language if primaryLanguage is null & fallback to correct values", () => {
     document.body.innerHTML = renderRepoCard({
       ...data_repo.repository,
@@ -332,11 +302,13 @@ describe("Test renderRepoCard", () => {
     );
     expect(queryByTestId(document.body, "badge")).toHaveTextContent("模板");
   });
-  
+
   it("should render without rounding", () => {
-    document.body.innerHTML = renderRepoCard(data_repo.repository, { border_radius: "0" });
+    document.body.innerHTML = renderRepoCard(data_repo.repository, {
+      border_radius: "0",
+    });
     expect(document.querySelector("rect")).toHaveAttribute("rx", "0");
-    document.body.innerHTML = renderRepoCard(data_repo.repository, { });
+    document.body.innerHTML = renderRepoCard(data_repo.repository, {});
     expect(document.querySelector("rect")).toHaveAttribute("rx", "4.5");
   });
 });

tests/utils.test.js

@@ -44,27 +44,6 @@ describe("Test utils.js", () => {
     ).toHaveTextContent(/Secondary Message/gim);
   });
 
-  it("should test flexLayout", () => {
-    const layout = flexLayout({
-      items: ["<text>1</text>", "<text>2</text>"],
-      gap: 60,
-    }).join("");
-
-    expect(layout).toBe(
-      `<g transform=\"translate(0, 0)\"><text>1</text></g><g transform=\"translate(60, 0)\"><text>2</text></g>`,
-    );
-
-    const columns = flexLayout({
-      items: ["<text>1</text>", "<text>2</text>"],
-      gap: 60,
-      direction: "column",
-    }).join("");
-
-    expect(columns).toBe(
-      `<g transform=\"translate(0, 0)\"><text>1</text></g><g transform=\"translate(0, 60)\"><text>2</text></g>`,
-    );
-  });
-
   it("getCardColors: should return expected values", () => {
     let colors = getCardColors({
       title_color: "f00",