1 files changed, 144 insertions, 0 deletions
diff --git a/web_src/js/components/DiffFileTree.vue b/web_src/js/components/DiffFileTree.vue
new file mode 100644
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+++ b/web_src/js/components/DiffFileTree.vue
@@ -0,0 +1,144 @@
+<script>
+import DiffFileTreeItem from './DiffFileTreeItem.vue';
+import {loadMoreFiles} from '../features/repo-diff.js';
+import {toggleElem} from '../utils/dom.js';
+import {diffTreeStore} from '../modules/stores.js';
+import {setFileFolding} from '../features/file-fold.js';
+
+const LOCAL_STORAGE_KEY = 'diff_file_tree_visible';
+
+export default {
+  components: {DiffFileTreeItem},
+  data: () => {
+    return {store: diffTreeStore()};
+  },
+  computed: {
+    fileTree() {
+      const result = [];
+      for (const file of this.store.files) {
+        // Split file into directories
+        const splits = file.Name.split('/');
+        let index = 0;
+        let parent = null;
+        let isFile = false;
+        for (const split of splits) {
+          index += 1;
+          // reached the end
+          if (index === splits.length) {
+            isFile = true;
+          }
+          let newParent = {
+            name: split,
+            children: [],
+            isFile,
+          };
+
+          if (isFile === true) {
+            newParent.file = file;
+          }
+
+          if (parent) {
+            // check if the folder already exists
+            const existingFolder = parent.children.find(
+              (x) => x.name === split,
+            );
+            if (existingFolder) {
+              newParent = existingFolder;
+            } else {
+              parent.children.push(newParent);
+            }
+          } else {
+            const existingFolder = result.find((x) => x.name === split);
+            if (existingFolder) {
+              newParent = existingFolder;
+            } else {
+              result.push(newParent);
+            }
+          }
+          parent = newParent;
+        }
+      }
+      const mergeChildIfOnlyOneDir = (entries) => {
+        for (const entry of entries) {
+          if (entry.children) {
+            mergeChildIfOnlyOneDir(entry.children);
+          }
+          if (entry.children.length === 1 && entry.children[0].isFile === false) {
+            // Merge it to the parent
+            entry.name = `${entry.name}/${entry.children[0].name}`;
+            entry.children = entry.children[0].children;
+          }
+        }
+      };
+      // Merge folders with just a folder as children in order to
+      // reduce the depth of our tree.
+      mergeChildIfOnlyOneDir(result);
+      return result;
+    },
+  },
+  mounted() {
+    // Default to true if unset
+    this.store.fileTreeIsVisible = localStorage.getItem(LOCAL_STORAGE_KEY) !== 'false';
+    document.querySelector('.diff-toggle-file-tree-button').addEventListener('click', this.toggleVisibility);
+
+    this.hashChangeListener = () => {
+      this.store.selectedItem = window.location.hash;
+      this.expandSelectedFile();
+    };
+    this.hashChangeListener();
+    window.addEventListener('hashchange', this.hashChangeListener);
+  },
+  unmounted() {
+    document.querySelector('.diff-toggle-file-tree-button').removeEventListener('click', this.toggleVisibility);
+    window.removeEventListener('hashchange', this.hashChangeListener);
+  },
+  methods: {
+    expandSelectedFile() {
+      // expand file if the selected file is folded
+      if (this.store.selectedItem) {
+        const box = document.querySelector(this.store.selectedItem);
+        const folded = box?.getAttribute('data-folded') === 'true';
+        if (folded) setFileFolding(box, box.querySelector('.fold-file'), false);
+      }
+    },
+    toggleVisibility() {
+      this.updateVisibility(!this.store.fileTreeIsVisible);
+    },
+    updateVisibility(visible) {
+      this.store.fileTreeIsVisible = visible;
+      localStorage.setItem(LOCAL_STORAGE_KEY, this.store.fileTreeIsVisible);
+      this.updateState(this.store.fileTreeIsVisible);
+    },
+    updateState(visible) {
+      const btn = document.querySelector('.diff-toggle-file-tree-button');
+      const [toShow, toHide] = btn.querySelectorAll('.icon');
+      const tree = document.getElementById('diff-file-tree');
+      const newTooltip = btn.getAttribute(visible ? 'data-hide-text' : 'data-show-text');
+      btn.setAttribute('data-tooltip-content', newTooltip);
+      toggleElem(tree, visible);
+      toggleElem(toShow, !visible);
+      toggleElem(toHide, visible);
+    },
+    loadMoreData() {
+      loadMoreFiles(this.store.linkLoadMore);
+    },
+  },
+};
+</script>
+<template>
+  <div v-if="store.fileTreeIsVisible" class="diff-file-tree-items">
+    <!-- only render the tree if we're visible. in many cases this is something that doesn't change very often -->
+    <DiffFileTreeItem v-for="item in fileTree" :key="item.name" :item="item"/>
+    <div v-if="store.isIncomplete" class="tw-pt-1">
+      <a :class="['ui', 'basic', 'tiny', 'button', store.isLoadingNewData ? 'disabled' : '']" @click.stop="loadMoreData">{{ store.showMoreMessage }}</a>
+    </div>
+  </div>
+</template>
+<style scoped>
+.diff-file-tree-items {
+  display: flex;
+  flex-direction: column;
+  gap: 1px;
+  margin-right: .5rem;
+}
+</style>