1.1.1

Volantis/js/search/hexo.js

@@ -0,0 +1,189 @@
+let SearchService = (() => {
+  fn = {};
+  fn.queryText = null;
+  fn.data = null;
+  fn.template = `<div id="u-search">
+  <div class="modal">
+    <header class="modal-header" class="clearfix">
+      <form id="u-search-modal-form" class="u-search-form" name="uSearchModalForm">
+        <input type="text" id="u-search-modal-input" class="u-search-input" />
+        <button type="submit" id="u-search-modal-btn-submit" class="u-search-btn-submit">
+          <span class="fas fa-search"></span>
+        </button>
+      </form>
+      <a id="u-search-btn-close" class="btn-close"> <span class="fas fa-times"></span> </a>
+    </header>
+    <main class="modal-body">
+      <ul class="modal-results"></ul>
+    </main>
+  </div>
+  <div id="modal-overlay" class="modal-overlay"></div>
+</div>
+`;
+  fn.init = () => {
+    let div = document.createElement("div");
+    div.innerHTML += fn.template;
+    document.body.append(div);
+    document.querySelectorAll(".u-search-form").forEach((e) => {
+      e.addEventListener("submit", fn.onSubmit, false);
+    });
+    let uSearchModalInput = document.querySelector("#u-search-modal-input");
+    uSearchModalInput.addEventListener("input", fn.onSubmit);
+    document
+      .querySelector("#u-search-btn-close")
+      .addEventListener("click", fn.close, false);
+    document
+      .querySelector("#modal-overlay")
+      .addEventListener("click", fn.close, false);
+  };
+  fn.onSubmit = (event) => {
+    event.preventDefault();
+    let input = event.target.querySelector(".u-search-input");
+    if (input) {
+      fn.queryText = input.value;
+    } else {
+      fn.queryText = event.target.value;
+    }
+
+    if (fn.queryText) {
+      fn.search();
+    }
+  };
+  fn.search = async () => {
+    document.querySelectorAll(".u-search-input").forEach((e) => {
+      e.value = fn.queryText;
+    });
+    document.querySelector("#u-search").style.display = "block";
+    if (!fn.data) {
+      fn.data = await fn.fetchData();
+    }
+    let results = "";
+    results += fn.buildResultList(data.pages);
+    results += fn.buildResultList(data.posts);
+    document.querySelector("#u-search .modal-results").innerHTML = results;
+    window.pjax && pjax.refresh(document.querySelector("#u-search"));
+    document.addEventListener("keydown", function f(event) {
+      if (event.code === "Escape") {
+        fn.close();
+        document.removeEventListener("keydown", f);
+      }
+    });
+  };
+  fn.close = () => {
+    document.querySelector("#u-search").style.display = "none";
+  };
+  fn.fetchData = () => {
+    return fetch(SearchServiceDataPath)
+      .then((response) => response.text())
+      .then((res) => {
+        data = JSON.parse(res);
+        // console.log(data);
+        return data;
+      });
+  };
+  fn.buildResultList = (data) => {
+    let html = "";
+    data.forEach((post) => {
+      if (post.text) {
+        post.text = post.text.replace(/12345\d*/g, "") // 简易移除代码行号
+      }
+      if (fn.contentSearch(post)) {
+        html += fn.buildResult(post.permalink, post.title, post.digest);
+      }
+    });
+    return html;
+  };
+  fn.contentSearch = (post) => {
+    let post_title = post.title.trim().toLowerCase();
+    let post_content = post.text.trim().toLowerCase();
+    let keywords = fn.queryText
+      .trim()
+      .toLowerCase()
+      .split(/[-\s]+/);
+    let foundMatch = false;
+    let index_title = -1;
+    let index_content = -1;
+    let first_occur = -1;
+    if (post_title && post_content) {
+      keywords.forEach((word, index) => {
+        index_title = post_title.indexOf(word);
+        index_content = post_content.indexOf(word);
+        if (index_title < 0 && index_content < 0) {
+          foundMatch = false;
+        } else {
+          foundMatch = true;
+          if (index_content < 0) {
+            index_content = 0;
+          }
+          if (index === 0) {
+            first_occur = index_content;
+          }
+        }
+        if (foundMatch) {
+          post_content = post.text.trim();
+          let start = 0;
+          let end = 0;
+          if (first_occur >= 0) {
+            start = Math.max(first_occur - 40, 0);
+            end =
+              start === 0
+                ? Math.min(200, post_content.length)
+                : Math.min(first_occur + 120, post_content.length);
+            let match_content = post_content.substring(start, end);
+            keywords.forEach(function (keyword) {
+              let regS = new RegExp(keyword, "gi");
+              match_content = match_content.replace(
+                regS,
+                "<b mark>" + keyword + "</b>"
+              );
+            });
+            post.digest = match_content + "......";
+          } else {
+            end = Math.min(200, post_content.length);
+            post.digest = post_content.trim().substring(0, end);
+          }
+        }
+      });
+    }
+    return foundMatch;
+  };
+  fn.buildResult = (url, title, digest) => {
+    let result = fn.getUrlRelativePath(url);
+    let html = "";
+    html += "<li>";
+    html +=
+      "<a class='result' href='" + result + "?keyword=" + fn.queryText + "'>";
+    html += "<span class='title'>" + title + "</span>";
+    if (digest !== "") html += "<span class='digest'>" + digest + "</span>";
+    html += "</a>";
+    html += "</li>";
+    return html;
+  };
+  fn.getUrlRelativePath = function (url) {
+    let arrUrl = url.split("//");
+    let start = arrUrl[1].indexOf("/");
+    let relUrl = arrUrl[1].substring(start);
+    if (relUrl.indexOf("?") != -1) {
+      relUrl = relUrl.split("?")[0];
+    }
+    return relUrl;
+  };
+  return {
+    init: () => {
+      fn.init();
+    },
+    setQueryText: (queryText) => {
+      fn.queryText = queryText;
+    },
+    search: () => {
+      fn.search();
+    },
+  };
+})();
+Object.freeze(SearchService);
+
+SearchService.init();
+document.addEventListener("pjax:success", SearchService.init);
+document.addEventListener("pjax:send", function () {
+  document.querySelector("#u-search").style.display = "none";
+});