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Allow suggestions when input is empty and use MRU order for suggestions #1

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Allow suggestions when input is empty and use MRU order for suggestions #1

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101 changes: 75 additions & 26 deletions background.html
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
<script>
var omnibox = chrome.omnibox;
var topMatch;
var mruTabIds = new Array();

function escape(text) {
return text.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
Expand Down Expand Up @@ -31,6 +32,14 @@
}

function parseMatches(text, search) {
if (search == '') {
return [
{
match: false,
text: escape(text)
}
];
}
var terms = escapeRegexp(search).split(/\s+/g);
var termMatchCounts = [];
terms.forEach(function() { termMatchCounts.push(0); });
Expand Down Expand Up @@ -83,40 +92,76 @@
}, "");
}

function formatDescription(matchItem) {
return formatMatches(matchItem.title) + ' - ' + '<url>'
+ formatMatches(matchItem.url)+'</url>';
}

// initialize the mru tab ids to contain all of the tabs
chrome.windows.getAll({populate: true}, function(windows) {
var tabs = windows.reduce(function(arr, win) {
return arr.concat(win.tabs);
}, []);
mruTabIds = tabs.reduce(function(ids, tab) {
return ids.concat(tab.id);
}, []);
});

chrome.tabs.onCreated.addListener(function(tab) {
mruTabIds.push(tab.id);
});

chrome.tabs.onSelectionChanged.addListener(function(tabId, selectInfo) {
if (mruTabIds.indexOf(tabId) != -1) {
mruTabIds.splice(mruTabIds.indexOf(tabId), 1);
mruTabIds.splice(0,0,tabId);
}
});

chrome.tabs.onRemoved.addListener(function(tabId) {
if(mruTabIds.indexOf(tabId) != -1)
mruTabIds.splice(mruTabIds.indexOf(tabId), 1);
});

omnibox.onInputChanged.addListener(function(text, suggest) {
text = text.toLowerCase().replace(/\W+/g, ' ').trim();
if (!text)
return;

chrome.windows.getAll({populate: true}, function(windows) {
topMatch = -1;

var tabs = windows.reduce(function(arr, win) {
return arr.concat(win.tabs);
}, []);

var suggestions = tabs.map(function(tab) {
return {
tab: tab,
title: parseMatches(tab.title, text),
url: parseMatches(tab.url, text)
};
var tabIds = tabs.reduce(function(ids, tab) {
return ids.concat(tab.id);
}, []);

var suggestions = mruTabIds.map(function(id) {
if (mruTabIds.indexOf(id) == 0) return null; // index 0 is the current tab, no need to handle it
var idx = tabIds.indexOf(id);
if (idx != -1 && tabs[idx]) {
return {
tab: tabs[idx],
title: parseMatches(tabs[idx].title, text),
url: parseMatches(tabs[idx].url, text)
};
}
return null;
}).filter(function(item) {
if (item.title.length > 1 || item.url.length > 1) {
if (item && (text == '' || item.title.length > 1 || item.url.length > 1)) {
if (topMatch == -1)
topMatch = item.tab.id;
topMatch = item;
return true;
} else {
return false;
}
}).map(function(item) {
return {
content: item.tab.title + ' - ' + item.tab.url + '#' + item.tab.id,
description: formatMatches(item.title) + ' - ' +
'<url>' + formatMatches(item.url) + '</url>'
content: item.tab.url + ' #' + item.tab.id,
description: formatDescription(item)
};
});

updateDefaultSuggestion();
suggest(suggestions);
});
});
Expand All @@ -126,17 +171,10 @@
if (tabId)
tabId = parseInt(tabId[1]);
else if (topMatch != -1)
tabId = topMatch;
tabId = topMatch.tab.id;
else
return;

chrome.tabs.getSelected(null, function(selected) {
// if the selected tab was the new tab page,
// assume that it was blank, and close it!
if (selected.url == 'chrome://newtab/')
chrome.tabs.remove(selected.id);
});

chrome.tabs.get(tabId, function(tab) {
if (tab && !tab.selected) {
chrome.tabs.update(tabId, {
Expand All @@ -154,7 +192,18 @@
});
});

omnibox.onInputCancelled.addListener(function() {
topMatch = -1;
});
//omnibox.onInputCancelled.addListener(function() {
// topMatch = -1;
//});

function updateDefaultSuggestion() {
var description = "No default tab to switch";
if (topMatch != -1) {
description='Switch to: ' + formatDescription(topMatch);
}
omnibox.setDefaultSuggestion({
description: description
});
}

</script>