1 files changed, 159 insertions, 0 deletions
diff --git a/app/assets/javascripts/issuable_bulk_update_actions.js b/app/assets/javascripts/issuable_bulk_update_actions.js
new file mode 100644
index 00000000000..e46c0e90255
--- /dev/null
+++ b/app/assets/javascripts/issuable_bulk_update_actions.js
@@ -0,0 +1,159 @@
+/* eslint-disable comma-dangle, quotes, consistent-return, func-names, array-callback-return, space-before-function-paren, prefer-arrow-callback, max-len, no-unused-expressions, no-sequences, no-underscore-dangle, no-unused-vars, no-param-reassign */
+/* global IssuableIndex */
+/* global Flash */
+
+export default {
+  init({ container, form, issues, prefixId } = {}) {
+    this.prefixId = prefixId || 'issue_';
+    this.form = form || this.getElement('.bulk-update');
+    this.$labelDropdown = this.form.find('.js-label-select');
+    this.issues = issues || this.getElement('.issues-list .issue');
+    this.willUpdateLabels = false;
+    this.bindEvents();
+  },
+
+  bindEvents() {
+    return this.form.off('submit').on('submit', this.onFormSubmit.bind(this));
+  },
+
+  onFormSubmit(e) {
+    e.preventDefault();
+    return this.submit();
+  },
+
+  submit() {
+    const _this = this;
+    const xhr = $.ajax({
+      url: this.form.attr('action'),
+      method: this.form.attr('method'),
+      dataType: 'JSON',
+      data: this.getFormDataAsObject()
+    });
+    xhr.done(() => window.location.reload());
+    xhr.fail(() => this.onFormSubmitFailure());
+  },
+
+  onFormSubmitFailure() {
+    this.form.find('[type="submit"]').enable();
+    return new Flash("Issue update failed");
+  },
+
+  getSelectedIssues() {
+    return this.issues.has('.selected_issue:checked');
+  },
+
+  getLabelsFromSelection() {
+    const labels = [];
+    this.getSelectedIssues().map(function() {
+      const labelsData = $(this).data('labels');
+      if (labelsData) {
+        return labelsData.map(function(labelId) {
+          if (labels.indexOf(labelId) === -1) {
+            return labels.push(labelId);
+          }
+        });
+      }
+    });
+    return labels;
+  },
+
+  /**
+   * Will return only labels that were marked previously and the user has unmarked
+   * @return {Array} Label IDs
+   */
+
+  getUnmarkedIndeterminedLabels() {
+    const result = [];
+    const labelsToKeep = this.$labelDropdown.data('indeterminate');
+
+    this.getLabelsFromSelection().forEach((id) => {
+      if (labelsToKeep.indexOf(id) === -1) {
+        result.push(id);
+      }
+    });
+
+    return result;
+  },
+
+  /**
+   * Simple form serialization, it will return just what we need
+   * Returns key/value pairs from form data
+   */
+
+  getFormDataAsObject() {
+    const formData = {
+      update: {
+        state_event: this.form.find('input[name="update[state_event]"]').val(),
+        // For Merge Requests
+        assignee_id: this.form.find('input[name="update[assignee_id]"]').val(),
+        // For Issues
+        assignee_ids: [this.form.find('input[name="update[assignee_ids][]"]').val()],
+        milestone_id: this.form.find('input[name="update[milestone_id]"]').val(),
+        issuable_ids: this.form.find('input[name="update[issuable_ids]"]').val(),
+        subscription_event: this.form.find('input[name="update[subscription_event]"]').val(),
+        add_label_ids: [],
+        remove_label_ids: []
+      }
+    };
+    if (this.willUpdateLabels) {
+      formData.update.add_label_ids = this.$labelDropdown.data('marked');
+      formData.update.remove_label_ids = this.$labelDropdown.data('unmarked');
+    }
+    return formData;
+  },
+
+  setOriginalDropdownData() {
+    const $labelSelect = $('.bulk-update .js-label-select');
+    $labelSelect.data('common', this.getOriginalCommonIds());
+    $labelSelect.data('marked', this.getOriginalMarkedIds());
+    $labelSelect.data('indeterminate', this.getOriginalIndeterminateIds());
+  },
+
+  // From issuable's initial bulk selection
+  getOriginalCommonIds() {
+    const labelIds = [];
+
+    this.getElement('.selected_issue:checked').each((i, el) => {
+      labelIds.push(this.getElement(`#${this.prefixId}${el.dataset.id}`).data('labels'));
+    });
+    return _.intersection.apply(this, labelIds);
+  },
+
+  // From issuable's initial bulk selection
+  getOriginalMarkedIds() {
+    const labelIds = [];
+    this.getElement('.selected_issue:checked').each((i, el) => {
+      labelIds.push(this.getElement(`#${this.prefixId}${el.dataset.id}`).data('labels'));
+    });
+    return _.intersection.apply(this, labelIds);
+  },
+
+  // From issuable's initial bulk selection
+  getOriginalIndeterminateIds() {
+    const uniqueIds = [];
+    const labelIds = [];
+    let issuableLabels = [];
+
+    // Collect unique label IDs for all checked issues
+    this.getElement('.selected_issue:checked').each((i, el) => {
+      issuableLabels = this.getElement(`#${this.prefixId}${el.dataset.id}`).data('labels');
+      issuableLabels.forEach((labelId) => {
+        // Store unique IDs
+        if (uniqueIds.indexOf(labelId) === -1) {
+          uniqueIds.push(labelId);
+        }
+      });
+      // Store array of IDs per issuable
+      labelIds.push(issuableLabels);
+    });
+    // Add uniqueIds to add it as argument for _.intersection
+    labelIds.unshift(uniqueIds);
+    // Return IDs that are present but not in all selected issueables
+    return _.difference(uniqueIds, _.intersection.apply(this, labelIds));
+  },
+
+  getElement(selector) {
+    this.scopeEl = this.scopeEl || $('.content');
+    return this.scopeEl.find(selector);
+  },
+};