Caret/js/ui/palette.js
2014-03-07 22:33:32 -08:00

393 lines
No EOL
11 KiB
JavaScript

define([
"sessions",
"command",
"editor",
"settings!menus,user",
"ui/statusbar",
"ui/projectManager",
"util/template!templates/paletteItem.html",
"util/dom2"
], function(sessions, command, editor, Settings, status, project, inflate) {
var TokenIterator = ace.require("ace/token_iterator").TokenIterator;
var refTest = /identifier|variable|function/;
var jsRefTest = /entity\.name\.function/;
//build a regex that finds special regex characters for sanitization
var antiregex = new RegExp("(\\\\|\\" + "?.*+[](){}|^$".split("").join("|\\") + ")", "g");
var sanitize = function(text) {
//turn HTML into escaped text for presentation
return text.replace(/\</g, "&lt;").replace(/\>/g, "&gt;").trim();
};
var re = {
file: /^([^:#@]*)/,
line: /:(\d*)/,
reference: /@([^:#]*)/,
search: /#([^:@]*)/
};
var prefixes = {
":": "line",
"@": "reference",
"#": "search"
};
var modes = {
"line": ":",
"search": "#",
"reference": "@"
};
var DEBOUNCE = 100;
var Palette = function() {
this.homeTab = null;
this.results = [];
this.cache = {};
this.allFiles = [];
this.files = [];
this.pending = null;
this.selected = 0;
this.element = document.find(".palette");
this.input = this.element.find("input");
this.resultList = this.element.find(".results");
this.commandMode = false;
this.searchAll = false;
this.bindInput();
};
Palette.prototype = {
bindInput: function() {
var input = this.input;
var self = this;
input.on("blur", function() {
self.deactivate();
});
input.on("keydown", function(e) {
//escape
if (e.keyCode == 27) {
sessions.restoreLocation();
editor.clearSelection();
return input.blur();
}
//enter
if (e.keyCode == 13) {
e.stopImmediatePropagation();
e.preventDefault();
self.executeCurrent();
return;
}
//up/down
if (e.keyCode == 38 || e.keyCode == 40) {
e.preventDefault();
e.stopImmediatePropagation();
self.navigateList(e.keyCode == 38 ? -1 : 1);
self.render();
return;
}
//backspace -- falls through
if (e.keyCode == 8) {
//clear search progress cache
self.files = self.allFiles;
}
self.selected = 0;
});
input.on("keyup", function(e) {
if (self.pending) {
return;
}
self.pending = setTimeout(function() {
self.pending = null;
self.parse(input.value);
}, DEBOUNCE);
});
},
parse: function(query) {
var startsWith = query[0];
if (startsWith in prefixes) {
this.commandMode = false;
}
if (this.commandMode) {
this.findCommands(query);
} else {
this.findLocations(query);
}
this.render();
},
findCommands: function(query) {
if (query.length == 0) return this.results = [];
var fuzzyCommand = new RegExp(query
.split("")
.map(function(char) { return char.replace(antiregex, "\\$1")})
.join(".*"),
"i");
var results = [];
var menus = Settings.get("menus");
var menuWalker = function(menu) {
for (var i = 0; i < menu.length; i++) {
var item = menu[i];
//skip dividers and other special cases
if (typeof item == "string") continue;
if (item.minVersion && item.minVersion > window.navigator.version) continue;
if (item.command && fuzzyCommand.test(item.palette || item.label)) {
results.push(item);
}
if (item.sub) {
menuWalker(item.sub);
}
}
};
menuWalker(menus);
this.results = results.slice(0, 10);
if (this.results.length < 10) {
var commandMap = {};
//do not duplicate results from menu
this.results.forEach(function(r) { commandMap[r.command] = true; });
for (var i = 0; i < command.list.length; i++) {
var c = command.list[i];
if (c.command in commandMap) continue;
if (fuzzyCommand.test(c.label)) {
this.results.push(c);
//once we have 10, quit
if (this.results.length >= 10) {
break;
}
}
}
}
},
getTabValues: function(tab) {
var name = tab.fileName;
if (!this.cache[name]) {
return this.cacheTab(tab);
}
var cache = this.cache[name];
for (var i = 0; i < cache.length; i++) {
if (cache[i].tab == tab) {
return cache[i];
}
}
return this.cacheTab(tab);
},
cacheTab: function(tab) {
//create cache entry
var entry = {
tab: tab,
refs: [],
text: tab.getValue()
};
//create token iterator, search for all references
var ti = new TokenIterator(tab, 0);
var token;
while (token = ti.stepForward()) {
if (tab.syntaxMode == "javascript" ? jsRefTest.test(token.type) : refTest.test(token.type)) {
//this is a match, let's store it as a valid result object
var row = ti.getCurrentTokenRow();
var col = ti.getCurrentTokenColumn();
var line = sanitize(tab.getLine(row));
entry.refs.push({
tab: tab,
line: row,
value: token.value,
label: tab.fileName + ":" + row,
sublabel: line,
column: col
});
}
}
var name = tab.fileName;
if (!this.cache[name]) {
this.cache[name] = [ entry ];
} else {
this.cache[name].push(entry);
}
return entry;
},
findLocations: function(query) {
var file = re.file.test(query) && re.file.exec(query)[1];
var line = re.line.test(query) && Number(re.line.exec(query)[1]) - 1;
var search = re.search.test(query) && re.search.exec(query)[1];
var reference = re.reference.test(query) && re.reference.exec(query)[1];
var results = [];
var self = this;
var tabs, projectFiles = [];
if (file) {
var fuzzyFile = new RegExp(file
.replace(/ /g, "")
.split("")
.map(function(char) { return char.replace(antiregex, "\\$1") })
.join(".*"),
"i");
tabs = sessions.getAllTabs().filter(function(tab) {
return fuzzyFile.test(tab.fileName);
});
//check the project for matches as well
this.files = this.files.filter(function(path) { return fuzzyFile.test(path) })
projectFiles = this.files.map(function(path) {
return {
label: path.substr(path.search(/[^\/\\]+$/)),
sublabel: path,
command: "project:open-file",
argument: path
};
});
} else {
var current = this.homeTab;
tabs = [ current ];
if (this.searchAll) {
tabs.push.apply(tabs, sessions.getAllTabs().filter(function(t) { return t !== current }));
}
}
tabs = tabs.map(function(t) {
return {
tab: t,
line: line
};
});
if (search) {
try {
var crawl = new RegExp(search.replace(antiregex, "\\$1"), "gi");
} catch (e) {
return;
}
var results = [];
tabs.forEach(function(t) {
if (results.length >= 10) return;
var found;
var lines = [];
var text = self.getTabValues(t.tab).text;
while (found = crawl.exec(text)) {
var position = t.tab.doc.indexToPosition(found.index);
if (lines.indexOf(position.row) > -1) {
continue;
}
lines.push(position.row);
var result = {
tab: t.tab
};
result.label = result.tab.fileName;
result.sublabel = sanitize(result.tab.getLine(position.row));
result.line = position.row;
results.push(result);
if (results.length >= 10) return;
}
});
tabs = results;
} else if (reference !== false) {
try {
var crawl = new RegExp(reference.replace(antiregex, "\\$1"), "i");
} catch (e) {
return;
}
var results = [];
tabs.forEach(function(t) {
if (results.length >= 10) return;
var refs = self.getTabValues(t.tab).refs;
for (var i = 0; i < refs.length; i++) {
if (crawl.test(refs[i].value)) {
var len = results.push(refs[i]);
if (len >= 10) return;
}
}
});
tabs = results;
}
this.results = tabs.concat(projectFiles).slice(0, 10);
if (this.results.length) {
var current = this.results[this.selected];
if (!current.tab) return;
sessions.raiseBlurred(current.tab);
if (current.line) {
editor.clearSelection();
editor.moveCursorTo(current.line, current.column || 0);
if (current.column) {
editor.execCommand("selectwordright");
}
}
}
},
executeCurrent: function() {
var current = this.results[this.selected];
if (!current) return;
if (current.command) {
status.toast("Executing: " + current.label + "...");
command.fire(current.command, current.argument);
} else {
//must be the file search
command.fire("session:check-file");
}
this.deactivate();
if (!current.retainFocus) editor.focus();
},
activate: function(mode) {
this.homeTab = sessions.getCurrent();
this.results = [];
this.cache = {};
this.allFiles = this.files = project.getPaths();
this.selected = 0;
this.searchAll = Settings.get("user").searchAllFiles;
this.commandMode = mode == "command";
this.input.value = modes[mode] || "";
this.render();
this.element.addClass("active");
this.input.focus();
},
deactivate: function() {
this.element.removeClass("active");
if (this.pending) clearTimeout(this.pending);
},
navigateList: function(interval) {
this.selected = (this.selected + interval) % this.results.length;
if (this.selected < 0) {
this.selected = this.results.length + this.selected;
}
var current = this.results[this.selected];
if (current && current.tab) {
sessions.raiseBlurred(current.tab);
}
this.render();
},
render: function() {
var self = this;
this.element.find(".mode").innerHTML = this.commandMode ? "Command:" : "Go To:";
this.resultList.innerHTML = "";
this.results.slice(0, 10).forEach(function(r, i) {
var element = inflate.get("templates/paletteItem.html", {
label: r.palette || r.label || (r.tab ? r.tab.fileName : ""),
sublabel: r.sublabel,
isCurrent: i == self.selected
});
self.resultList.append(element);
});
}
};
var palette = new Palette();
command.on("palette:open", function(mode) {
sessions.saveLocation();
palette.activate(mode);
});
return palette;
});