159 lines
4.5 KiB
CoffeeScript
159 lines
4.5 KiB
CoffeeScript
# MergeRequestTabs
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#
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# Handles persisting and restoring the current tab selection and lazily-loading
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# content on the MergeRequests#show page.
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#
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# ### Example Markup
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#
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# <ul class="nav nav-tabs merge-request-tabs">
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# <li class="notes-tab active">
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# <a data-action="notes" data-target="#notes" data-toggle="tab" href="/foo/bar/merge_requests/1">
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# Discussion
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# </a>
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# </li>
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# <li class="commits-tab">
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# <a data-action="commits" data-target="#commits" data-toggle="tab" href="/foo/bar/merge_requests/1/commits">
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# Commits
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# </a>
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# </li>
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# <li class="diffs-tab">
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# <a data-action="diffs" data-target="#diffs" data-toggle="tab" href="/foo/bar/merge_requests/1/diffs">
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# Diffs
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# </a>
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# </li>
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# </ul>
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#
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# <div class="tab-content">
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# <div class="notes tab-pane active" id="notes">
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# Notes Content
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# </div>
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# <div class="commits tab-pane" id="commits">
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# Commits Content
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# </div>
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# <div class="diffs tab-pane" id="diffs">
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# Diffs Content
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# </div>
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# </div>
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#
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# <div class="mr-loading-status">
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# <div class="loading">
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# Loading Animation
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# </div>
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# </div>
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#
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class @MergeRequestTabs
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diffsLoaded: false
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commitsLoaded: false
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constructor: (@opts = {}) ->
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# Store the `location` object, allowing for easier stubbing in tests
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@_location = location
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@bindEvents()
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@activateTab(@opts.action)
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bindEvents: ->
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$(document).on 'shown.bs.tab', '.merge-request-tabs a[data-toggle="tab"]', @tabShown
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tabShown: (event) =>
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$target = $(event.target)
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action = $target.data('action')
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if action == 'commits'
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@loadCommits($target.attr('href'))
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else if action == 'diffs'
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@loadDiff($target.attr('href'))
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@setCurrentAction(action)
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scrollToElement: (container) ->
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if window.location.hash
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$el = $("#{container} #{window.location.hash}")
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$('body').scrollTo($el.offset().top) if $el.length
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# Activate a tab based on the current action
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activateTab: (action) ->
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action = 'notes' if action == 'show'
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$(".merge-request-tabs a[data-action='#{action}']").tab('show')
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# Replaces the current Merge Request-specific action in the URL with a new one
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#
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# If the action is "notes", the URL is reset to the standard
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# `MergeRequests#show` route.
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#
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# Examples:
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#
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# location.pathname # => "/namespace/project/merge_requests/1"
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# setCurrentAction('diffs')
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# location.pathname # => "/namespace/project/merge_requests/1/diffs"
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#
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# location.pathname # => "/namespace/project/merge_requests/1/diffs"
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# setCurrentAction('notes')
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# location.pathname # => "/namespace/project/merge_requests/1"
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#
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# location.pathname # => "/namespace/project/merge_requests/1/diffs"
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# setCurrentAction('commits')
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# location.pathname # => "/namespace/project/merge_requests/1/commits"
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#
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# Returns the new URL String
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setCurrentAction: (action) =>
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# Normalize action, just to be safe
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action = 'notes' if action == 'show'
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# Remove a trailing '/commits' or '/diffs'
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new_state = @_location.pathname.replace(/\/(commits|diffs)(\.html)?\/?$/, '')
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# Append the new action if we're on a tab other than 'notes'
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unless action == 'notes'
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new_state += "/#{action}"
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# Ensure parameters and hash come along for the ride
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new_state += @_location.search + @_location.hash
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# Replace the current history state with the new one without breaking
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# Turbolinks' history.
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#
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# See https://github.com/rails/turbolinks/issues/363
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history.replaceState {turbolinks: true, url: new_state}, document.title, new_state
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new_state
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loadCommits: (source) ->
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return if @commitsLoaded
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@_get
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url: "#{source}.json"
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success: (data) =>
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document.getElementById('commits').innerHTML = data.html
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$('.js-timeago').timeago()
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@commitsLoaded = true
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@scrollToElement("#commits")
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loadDiff: (source) ->
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return if @diffsLoaded
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@_get
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url: "#{source}.json" + @_location.search
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success: (data) =>
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document.getElementById('diffs').innerHTML = data.html
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@diffsLoaded = true
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@scrollToElement("#diffs")
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# Show or hide the loading spinner
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#
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# status - Boolean, true to show, false to hide
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toggleLoading: (status) ->
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$('.mr-loading-status .loading').toggle(status)
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_get: (options) ->
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defaults = {
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beforeSend: => @toggleLoading(true)
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complete: => @toggleLoading(false)
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dataType: 'json'
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type: 'GET'
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}
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options = $.extend({}, defaults, options)
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$.ajax(options)
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