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<template>
<div v-if="store.fileTreeIsVisible" class="gt-mr-3 gt-mt-3 diff-detail-box">
<!-- only render the tree if we're visible. in many cases this is something that doesn't change very often -->
<div class="ui list">
<DiffFileTreeItem v-for="item in fileTree" :key="item.name" :item="item"/>
</div>
<div v-if="store.isIncomplete" class="gt-pt-2">
<a :class="['ui', 'basic', 'tiny', 'button', store.isLoadingNewData ? 'disabled' : '']" @click.stop="loadMoreData">{{ store.showMoreMessage }}</a>
</div>
</div>
</template>
<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() {
this.store.fileTreeIsVisible = localStorage.getItem(LOCAL_STORAGE_KEY) === 'true';
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>
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