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Marks =
# This returns the key which is used for storing mark locations in chrome.storage.local.
getLocationKey: (markName) -> "vimiumGlobalMark|#{markName}"
# Get the part of a URL we use for matching here (that is, everything up to the first anchor).
getBaseUrl: (url) -> url.split("#")[0]
# Create a global mark. We record vimiumSecret with the mark so that we can tell later, when the mark is
# used, whether this is the original Vimium instantiation or a subsequent instantiation. This affects
# whether or not tabId can be considered valid.
create: (req, sender) ->
chrome.storage.local.get "vimiumSecret", (items) =>
item = {}
item[@getLocationKey req.markName] =
vimiumSecret: items.vimiumSecret
tabId: sender.tab.id
url: @getBaseUrl sender.tab.url
scrollX: req.scrollX
scrollY: req.scrollY
markName: req.markName
chrome.storage.local.set item
goto: (req, sender) ->
key = @getLocationKey req.markName
chrome.storage.local.get [ "vimiumSecret", key ], (items) =>
markInfo = items[key]
if not markInfo
# The mark is not defined.
chrome.tabs.sendMessage sender.tab.id,
name: "showHUDforDuration",
text: "Global mark not set: '#{req.markName}'."
duration: 1000
else if markInfo.vimiumSecret != items.vimiumSecret
# This is a different Vimium instantiation, so markInfo.tabId is definitely out of date.
@focusOrLaunch markInfo
else
# Check whether markInfo.tabId still exists. According to here (https://developer.chrome.com/extensions/tabs),
# tab Ids are unqiue within a Chrome session. So, if we find a match, we can use.
chrome.tabs.get markInfo.tabId, (tab) =>
if not chrome.runtime.lastError and tab?.url and markInfo.url == @getBaseUrl tab.url
# The original tab still exists.
@gotoPositionInTab markInfo
else
# The original tab no longer exists.
@focusOrLaunch markInfo
gotoPositionInTab: ({ tabId, scrollX, scrollY, markName }) ->
chrome.tabs.update tabId, { selected: true }, ->
chrome.tabs.sendMessage tabId,
{ name: "setScrollPosition", scrollX: scrollX, scrollY: scrollY }, ->
chrome.tabs.sendMessage tabId,
name: "showHUDforDuration",
text: "Jumped to global mark '#{markName}'."
duration: 1000
# The tab we're trying to find no longer exists. We either find another tab with a matching URL and use it,
# or we create a new tab.
focusOrLaunch: (markInfo) ->
chrome.windows.getAll { populate: true }, (windows) =>
for window in windows
for tab in window.tabs
if markInfo.url == @getBaseUrl tab.url
# We have a matching tab: use it.
@gotoPositionInTab extend markInfo, tabId: tab.id
return
# There is no existing matching tab, we'll have to create one.
chrome.tabs.create { url: @getBaseUrl(markInfo.url) }, (tab) =>
# Note. tabLoadedHandlers is defined in "main.coffee". The handler below will be called when the tab
# is loaded, its DOM is ready and it registers with the background page.
tabLoadedHandlers[tab.id] = => @gotoPositionInTab extend markInfo, tabId: tab.id
root = exports ? window
root.Marks = Marks
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