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<script>
import { GlDropdown, GlDropdownItem, GlSearchBoxByType, GlLoadingIcon } from '@gitlab/ui';
import { __ } from '~/locale';
import { BRANCHES_PER_PAGE } from '../constants';
import getProjectQuery from '../graphql/queries/get_project.query.graphql';
export default {
BRANCHES_PER_PAGE,
components: {
GlDropdown,
GlDropdownItem,
GlSearchBoxByType,
GlLoadingIcon,
},
props: {
selectedProject: {
type: Object,
required: false,
default: null,
},
selectedBranchName: {
type: String,
required: false,
default: null,
},
},
data() {
return {
sourceBranchSearchQuery: '',
initialSourceBranchNamesLoading: false,
sourceBranchNamesLoading: false,
sourceBranchNames: [],
};
},
computed: {
hasSelectedProject() {
return Boolean(this.selectedProject);
},
hasSelectedSourceBranch() {
return Boolean(this.selectedBranchName);
},
branchDropdownText() {
return this.selectedBranchName || __('Select a branch');
},
},
watch: {
selectedProject: {
immediate: true,
async handler(selectedProject) {
if (!selectedProject) return;
this.initialSourceBranchNamesLoading = true;
await this.fetchSourceBranchNames({ projectPath: selectedProject.fullPath });
this.initialSourceBranchNamesLoading = false;
},
},
},
methods: {
onSourceBranchSelect(branchName) {
this.$emit('change', branchName);
},
onSourceBranchSearchQuery(branchSearchQuery) {
this.branchSearchQuery = branchSearchQuery;
this.fetchSourceBranchNames({
projectPath: this.selectedProject.fullPath,
searchPattern: this.branchSearchQuery,
});
},
onError({ message } = {}) {
this.$emit('error', { message });
},
async fetchSourceBranchNames({ projectPath, searchPattern } = {}) {
this.sourceBranchNamesLoading = true;
try {
const { data } = await this.$apollo.query({
query: getProjectQuery,
variables: {
projectPath,
branchNamesLimit: this.$options.BRANCHES_PER_PAGE,
branchNamesOffset: 0,
branchNamesSearchPattern: searchPattern ? `*${searchPattern}*` : '*',
},
});
const { branchNames, rootRef } = data?.project.repository || {};
this.sourceBranchNames = branchNames || [];
// Use root ref as the default selection
if (rootRef && !this.hasSelectedSourceBranch) {
this.onSourceBranchSelect(rootRef);
}
} catch (err) {
this.onError({
message: __('Something went wrong while fetching source branches.'),
});
} finally {
this.sourceBranchNamesLoading = false;
}
},
},
};
</script>
<template>
<gl-dropdown
:text="branchDropdownText"
:loading="initialSourceBranchNamesLoading"
:disabled="!hasSelectedProject"
:class="{ 'gl-font-monospace': hasSelectedSourceBranch }"
>
<template #header>
<gl-search-box-by-type
:debounce="250"
:value="sourceBranchSearchQuery"
@input="onSourceBranchSearchQuery"
/>
</template>
<gl-loading-icon v-show="sourceBranchNamesLoading" />
<template v-if="!sourceBranchNamesLoading">
<gl-dropdown-item
v-for="branchName in sourceBranchNames"
v-show="!sourceBranchNamesLoading"
:key="branchName"
:is-checked="branchName === selectedBranchName"
is-check-item
class="gl-font-monospace"
@click="onSourceBranchSelect(branchName)"
>
{{ branchName }}
</gl-dropdown-item>
</template>
</gl-dropdown>
</template>
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