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e71d8d863c
Electron allows us to pass an "accelerator" property for each menu item, which is renders to the right of the menu item. We were already adding these for the application level menus. This pull request adds the accelerator property to regular context menu items, which should make it easier for people to discover/recall key mappings for actions which they usually take via a context menu.
75 lines
2.4 KiB
CoffeeScript
75 lines
2.4 KiB
CoffeeScript
_ = require 'underscore-plus'
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ItemSpecificities = new WeakMap
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merge = (menu, item, itemSpecificity=Infinity) ->
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item = cloneMenuItem(item)
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ItemSpecificities.set(item, itemSpecificity) if itemSpecificity
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matchingItemIndex = findMatchingItemIndex(menu, item)
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matchingItem = menu[matchingItemIndex] unless matchingItemIndex is - 1
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if matchingItem?
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if item.submenu?
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merge(matchingItem.submenu, submenuItem, itemSpecificity) for submenuItem in item.submenu
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else if itemSpecificity
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unless itemSpecificity < ItemSpecificities.get(matchingItem)
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menu[matchingItemIndex] = item
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else unless item.type is 'separator' and _.last(menu)?.type is 'separator'
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menu.push(item)
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return
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unmerge = (menu, item) ->
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matchingItemIndex = findMatchingItemIndex(menu, item)
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matchingItem = menu[matchingItemIndex] unless matchingItemIndex is - 1
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if matchingItem?
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if item.submenu?
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unmerge(matchingItem.submenu, submenuItem) for submenuItem in item.submenu
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unless matchingItem.submenu?.length > 0
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menu.splice(matchingItemIndex, 1)
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findMatchingItemIndex = (menu, {type, label, submenu}) ->
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return -1 if type is 'separator'
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for item, index in menu
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if normalizeLabel(item.label) is normalizeLabel(label) and item.submenu? is submenu?
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return index
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-1
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normalizeLabel = (label) ->
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return undefined unless label?
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if process.platform is 'darwin'
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label
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else
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label.replace(/\&/g, '')
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cloneMenuItem = (item) ->
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item = _.pick(item, 'type', 'label', 'enabled', 'visible', 'command', 'submenu', 'commandDetail', 'role', 'accelerator')
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if item.submenu?
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item.submenu = item.submenu.map (submenuItem) -> cloneMenuItem(submenuItem)
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item
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# Determine the Electron accelerator for a given Atom keystroke.
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#
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# keystroke - The keystroke.
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#
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# Returns a String containing the keystroke in a format that can be interpreted
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# by Electron to provide nice icons where available.
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acceleratorForKeystroke = (keystroke) ->
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return null unless keystroke
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modifiers = keystroke.split(/-(?=.)/)
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key = modifiers.pop().toUpperCase().replace('+', 'Plus')
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modifiers = modifiers.map (modifier) ->
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modifier.replace(/shift/ig, "Shift")
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.replace(/cmd/ig, "Command")
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.replace(/ctrl/ig, "Ctrl")
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.replace(/alt/ig, "Alt")
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keys = modifiers.concat([key])
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keys.join("+")
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module.exports = {merge, unmerge, normalizeLabel, cloneMenuItem, acceleratorForKeystroke}
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