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pentadactyl-pm/common/content/commandline.js
Kris Maglione af88d531d0 Make .closure a Proxy and rename .bound
2014-03-16 14:32:04 -07:00

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// Copyright (c) 2006-2008 by Martin Stubenschrott <stubenschrott@vimperator.org>
// Copyright (c) 2007-2011 by Doug Kearns <dougkearns@gmail.com>
// Copyright (c) 2008-2014 Kris Maglione <maglione.k@gmail.com>
//
// This work is licensed for reuse under an MIT license. Details are
// given in the LICENSE.txt file included with this file.
"use strict";
/** @scope modules */
var CommandWidgets = Class("CommandWidgets", {
depends: ["statusline"],
init: function init() {
let s = "dactyl-statusline-field-";
overlay.overlayWindow(window, {
objects: {
eventTarget: commandline
},
append: [
["vbox", { id: config.ids.commandContainer, xmlns: "xul" },
["vbox", { class: "dactyl-container", hidden: "false", collapsed: "true" },
["iframe", { class: "dactyl-completions", id: "dactyl-completions-dactyl-commandline",
src: "dactyl://content/buffer.xhtml", contextmenu: "dactyl-contextmenu",
flex: "1", hidden: "false", collapsed: "false",
highlight: "Events", events: "mowEvents" }]],
["stack", { orient: "horizontal", align: "stretch", class: "dactyl-container",
id: "dactyl-container", highlight: "CmdLine CmdCmdLine" },
["textbox", { class: "plain", id: "dactyl-strut", flex: "1", crop: "end", collapsed: "true" }],
["textbox", { class: "plain", id: "dactyl-mode", flex: "1", crop: "end" }],
["hbox", { id: "dactyl-message-box" },
["label", { class: "plain", id: "dactyl-message-pre", flex: "0", readonly: "true", highlight: "WarningMsg" }],
["textbox", { class: "plain", id: "dactyl-message", flex: "1", readonly: "true" }]],
["hbox", { id: "dactyl-commandline", hidden: "false", class: "dactyl-container", highlight: "Normal CmdNormal", collapsed: "true" },
["label", { id: "dactyl-commandline-prompt", class: "dactyl-commandline-prompt plain", flex: "0", crop: "end", value: "", collapsed: "true" }],
["textbox", { id: "dactyl-commandline-command", class: "dactyl-commandline-command plain", flex: "1", type: "input", timeout: "100",
highlight: "Events" }]]],
["vbox", { class: "dactyl-container", hidden: "false", collapsed: "false", highlight: "CmdLine" },
["textbox", { id: "dactyl-multiline-input", class: "plain", flex: "1", rows: "1", hidden: "false", collapsed: "true",
multiline: "true", highlight: "Normal Events", events: "multilineInputEvents" }]]],
["stack", { id: "dactyl-statusline-stack", xmlns: "xul" },
["hbox", { id: s + "commandline", hidden: "false", class: "dactyl-container", highlight: "Normal StatusNormal", collapsed: "true" },
["label", { id: s + "commandline-prompt", class: "dactyl-commandline-prompt plain", flex: "0", crop: "end", value: "", collapsed: "true" }],
["textbox", { id: s + "commandline-command", class: "dactyl-commandline-command plain", flex: "1", type: "text", timeout: "100",
highlight: "Events", }]]]],
before: [
["toolbar", { id: statusline.statusBar.id, xmlns: "xul" },
["vbox", { id: "dactyl-completions-" + s + "commandline-container", class: "dactyl-container", hidden: "false", collapsed: "true" },
["iframe", { class: "dactyl-completions", id: "dactyl-completions-" + s + "commandline", src: "dactyl://content/buffer.xhtml",
contextmenu: "dactyl-contextmenu", flex: "1", hidden: "false", collapsed: "false", highlight: "Events",
events: "mowEvents" }]]]]
});
this.elements = {};
this.addElement({
name: "container",
noValue: true
});
this.addElement({
name: "commandline",
getGroup: function () options.get("guioptions").has("C") ? this.commandbar : this.statusbar,
getValue: function () this.command
});
this.addElement({
name: "strut",
defaultGroup: "Normal",
getGroup: function () this.commandbar,
getValue: function () options.get("guioptions").has("c")
});
this.addElement({
name: "command",
test: function test(stack, prev) stack.pop && !isinstance(prev.main, modes.COMMAND_LINE),
id: "commandline-command",
get: function command_get(elem) {
// The long path is because of complications with the
// completion preview.
try {
return elem.inputField.editor.rootElement.firstChild.textContent;
}
catch (e) {
return elem.value;
}
},
getElement: CommandWidgets.getEditor,
getGroup: function (value) this.activeGroup.commandline,
onChange: function command_onChange(elem, value) {
if (elem.inputField != dactyl.focusedElement)
try {
elem.selectionStart = elem.value.length;
elem.selectionEnd = elem.value.length;
}
catch (e) {}
if (!elem.collapsed)
dactyl.focus(elem);
},
onVisibility: function command_onVisibility(elem, visible) {
if (visible)
dactyl.focus(elem);
}
});
this.addElement({
name: "prompt",
id: "commandline-prompt",
defaultGroup: "CmdPrompt",
getGroup: function () this.activeGroup.commandline
});
this.addElement({
name: "message",
defaultGroup: "Normal",
getElement: CommandWidgets.getEditor,
getGroup: function (value) {
if (this.command && !options.get("guioptions").has("M"))
return this.statusbar;
let statusElem = this.statusbar.message;
// Currently doesn't work as expected with <hbox> parent.
if (false && value && !value[2] && statusElem.editor && statusElem.editor.rootElement.scrollWidth > statusElem.scrollWidth)
return this.commandbar;
return this.activeGroup.mode;
}
});
this.addElement({
name: "message-pre",
defaultGroup: "WarningMsg",
getGroup: function () this.activeGroup.message
});
this.addElement({
name: "message-box",
defaultGroup: "Normal",
getGroup: function () this.activeGroup.message,
getValue: function () this.message
});
this.addElement({
name: "mode",
defaultGroup: "ModeMsg",
getGroup: function (value) {
if (!options.get("guioptions").has("M"))
if (this.commandbar.container.clientHeight == 0 ||
value && !this.commandbar.commandline.collapsed)
return this.statusbar;
return this.commandbar;
}
});
this.updateVisibility();
this.initialized = true;
},
addElement: function addElement(obj) {
const self = this;
this.elements[obj.name] = obj;
function get(prefix, map, id) (obj.getElement || util.identity)(map[id] || document.getElementById(prefix + id));
this.active.__defineGetter__(obj.name, () => this.activeGroup[obj.name][obj.name]);
this.activeGroup.__defineGetter__(obj.name, () => this.getGroup(obj.name));
memoize(this.statusbar, obj.name, () => get("dactyl-statusline-field-", statusline.widgets, (obj.id || obj.name)));
memoize(this.commandbar, obj.name, () => get("dactyl-", {}, (obj.id || obj.name)));
if (!(obj.noValue || obj.getValue)) {
Object.defineProperty(this, obj.name, Modes.boundProperty({
test: obj.test,
get: function get_widgetValue() {
let elem = self.getGroup(obj.name, obj.value)[obj.name];
if (obj.value != null)
return [obj.value[0],
obj.get ? obj.get.call(this, elem) : elem.value]
.concat(obj.value.slice(2));
return null;
},
set: function set_widgetValue(val) {
if (val != null && !isArray(val))
val = [obj.defaultGroup || "", val];
obj.value = val;
[this.commandbar, this.statusbar].forEach(function (nodeSet) {
let elem = nodeSet[obj.name];
if (val == null)
elem.value = "";
else {
highlight.highlightNode(elem,
(val[0] != null ? val[0] : obj.defaultGroup)
.split(/\s/).filter(util.identity)
.map(g => g + " " + nodeSet.group + g)
.join(" "));
elem.value = val[1];
if (obj.onChange)
obj.onChange.call(this, elem, val);
}
}, this);
this.updateVisibility();
return val;
}
}).init(obj.name));
}
else if (obj.defaultGroup) {
[this.commandbar, this.statusbar].forEach(function (nodeSet) {
let elem = nodeSet[obj.name];
if (elem)
highlight.highlightNode(elem, obj.defaultGroup.split(/\s/)
.map(g => g + " " + nodeSet.group + g)
.join(" "));
});
}
},
getGroup: function getgroup(name, value) {
if (!statusline.visible)
return this.commandbar;
return this.elements[name].getGroup.call(this, arguments.length > 1 ? value : this[name]);
},
updateVisibility: function updateVisibility() {
let changed = 0;
for (let elem in values(this.elements))
if (elem.getGroup) {
let value = elem.getValue ? elem.getValue.call(this)
: elem.noValue || this[elem.name];
let activeGroup = this.getGroup(elem.name, value);
for (let group in values([this.commandbar, this.statusbar])) {
let meth, node = group[elem.name];
let visible = (value && group === activeGroup);
if (node && !node.collapsed == !visible) {
changed++;
node.collapsed = !visible;
if (elem.onVisibility)
elem.onVisibility.call(this, node, visible);
}
}
}
// Hack. Collapse hidden elements in the stack.
// Might possibly be better to use a deck and programmatically
// choose which element to select.
function check(node) {
if (DOM(node).style.display === "-moz-stack") {
let nodes = Array.filter(node.children, n => !n.collapsed && n.boxObject.height);
nodes.forEach((node, i) => {
node.style.opacity = (i == nodes.length - 1) ? "" : "0";
});
}
Array.forEach(node.children, check);
}
[this.commandbar.container, this.statusbar.container].forEach(check);
if (this.initialized && loaded.has("mow") && mow.visible)
mow.resize(false);
},
active: Class.Memoize(Object),
activeGroup: Class.Memoize(Object),
commandbar: Class.Memoize(function () ({ group: "Cmd" })),
statusbar: Class.Memoize(function () ({ group: "Status" })),
_ready: function _ready(elem) {
return elem.contentDocument.documentURI === elem.getAttribute("src") &&
["viewable", "complete"].indexOf(elem.contentDocument.readyState) >= 0;
},
_whenReady: function _whenReady(id, init) {
let elem = document.getElementById(id);
while (!this._ready(elem))
yield 10;
if (init)
init.call(this, elem);
yield elem;
},
completionContainer: Class.Memoize(function () this.completionList.parentNode),
contextMenu: Class.Memoize(function () {
["copy", "copylink", "selectall"].forEach(function (tail) {
// some host apps use "hostPrefixContext-copy" ids
let css = "menuitem[id$='ontext-" + tail + "']:not([id^=dactyl-])";
let style = DOM(css, document).style;
DOM("#dactyl-context-" + tail, document).css({
listStyleImage: style.listStyleImage,
MozImageRegion: style.MozImageRegion
});
});
return document.getElementById("dactyl-contextmenu");
}),
multilineOutput: Class.Memoize(function () this._whenReady("dactyl-multiline-output",
elem => {
highlight.highlightNode(elem.contentDocument.body, "MOW");
}), true),
multilineInput: Class.Memoize(() => document.getElementById("dactyl-multiline-input")),
mowContainer: Class.Memoize(() => document.getElementById("dactyl-multiline-output-container"))
}, {
getEditor: function getEditor(elem) {
elem.inputField.QueryInterface(Ci.nsIDOMNSEditableElement);
return elem;
}
});
var CommandMode = Class("CommandMode", {
init: function CM_init() {
this.keepCommand = userContext.hidden_option_command_afterimage;
},
get autocomplete() options["autocomplete"].length,
get command() this.widgets.command[1],
set command(val) this.widgets.command = val,
get prompt() this._open ? this.widgets.prompt : this._prompt,
set prompt(val) {
if (this._open)
this.widgets.prompt = val;
else
this._prompt = val;
},
open: function CM_open(command) {
dactyl.assert(isinstance(this.mode, modes.COMMAND_LINE),
/*L*/"Not opening command line in non-command-line mode.",
false);
this.messageCount = commandline.messageCount;
modes.push(this.mode, this.extendedMode, this.bound);
this.widgets.active.commandline.collapsed = false;
this.widgets.prompt = this.prompt;
this.widgets.command = command || "";
this._open = true;
this.input = this.widgets.active.command.inputField;
if (this.historyKey)
this.history = CommandLine.History(this.input, this.historyKey, this);
if (this.complete)
this.completions = CommandLine.Completions(this.input, this);
if (this.completions && command && commandline.commandSession === this)
this.completions.autocompleteTimer.flush(true);
},
get active() this === commandline.commandSession,
get holdFocus() this.widgets.active.command.inputField,
get mappingSelf() this,
get widgets() commandline.widgets,
enter: function CM_enter(stack) {
commandline.commandSession = this;
if (stack.pop && commandline.command) {
this.onChange(commandline.command);
if (this.completions && stack.pop)
this.completions.complete(true, false);
}
},
leave: function CM_leave(stack) {
if (!stack.push) {
commandline.commandSession = null;
this.input.dactylKeyPress = undefined;
let waiting = this.accepted && this.completions && this.completions.waiting;
if (waiting)
this.completions.onComplete = bind("onSubmit", this);
if (this.completions)
this.completions.cleanup();
if (this.history)
this.history.save();
commandline.hideCompletions();
modes.delay(function () {
if (!this.keepCommand || commandline.silent || commandline.quiet)
commandline.hide();
if (!waiting)
this[this.accepted ? "onSubmit" : "onCancel"](commandline.command);
if (commandline.messageCount === this.messageCount)
commandline.clearMessage();
}, this);
}
},
events: {
input: function CM_onInput(event) {
if (this.completions) {
this.resetCompletions();
this.completions.autocompleteTimer.tell(false);
}
this.onChange(commandline.command);
},
keyup: function CM_onKeyUp(event) {
let key = DOM.Event.stringify(event);
if (/-?Tab>$/.test(key) && this.completions)
this.completions.tabTimer.flush();
}
},
keepCommand: false,
onKeyPress: function CM_onKeyPress(events) {
if (this.completions)
this.completions.previewClear();
return true; /* Pass event */
},
onCancel: function (value) {},
onChange: function (value) {},
onHistory: function (value) {},
onSubmit: function (value) {},
resetCompletions: function CM_resetCompletions() {
if (this.completions)
this.completions.clear();
if (this.history)
this.history.reset();
},
});
var CommandExMode = Class("CommandExMode", CommandMode, {
get mode() modes.EX,
historyKey: "command",
prompt: ["Normal", ":"],
complete: function CEM_complete(context) {
try {
context.fork("ex", 0, completion, "ex");
}
catch (e) {
context.message = _("error.error", e);
}
},
onSubmit: function CEM_onSubmit(command) {
contexts.withContext({ file: /*L*/"[Command Line]", line: 1 },
function _onSubmit() {
io.withSavedValues(["readHeredoc"], function _onSubmit() {
this.readHeredoc = commandline.readHeredoc;
commands.repeat = command;
dactyl.execute(command);
});
});
}
});
var CommandPromptMode = Class("CommandPromptMode", CommandMode, {
init: function init(prompt, params) {
this.prompt = isArray(prompt) ? prompt : ["Question", prompt];
update(this, params);
init.supercall(this);
},
complete: function CPM_complete(context, ...args) {
if (this.completer)
context.forkapply("prompt", 0, this, "completer", args);
},
get mode() modes.PROMPT
});
/**
* This class is used for prompting of user input and echoing of messages.
*
* It consists of a prompt and command field be sure to only create objects of
* this class when the chrome is ready.
*/
var CommandLine = Module("commandline", {
init: function init() {
this._callbacks = {};
memoize(this, "_store", function () storage.newMap("command-history", { store: true, privateData: true }));
for (let name in values(["command", "search"]))
if (storage.exists("history-" + name)) {
let ary = storage.newArray("history-" + name, { store: true, privateData: true });
this._store.set(name, [v for ([k, v] in ary)]);
ary.delete();
this._store.changed();
}
this._messageHistory = { //{{{
_messages: [],
get messages() {
let max = options["messages"];
// resize if 'messages' has changed
if (this._messages.length > max)
this._messages = this._messages.splice(this._messages.length - max);
return this._messages;
},
get length() this._messages.length,
clear: function clear() {
this._messages = [];
},
filter: function filter(fn, self) {
this._messages = this._messages.filter(fn, self);
},
add: function add(message) {
if (!message)
return;
if (this._messages.length >= options["messages"])
this._messages.shift();
this._messages.push(update({
timestamp: Date.now()
}, message));
}
}; //}}}
},
signals: {
"browser.locationChange": function (webProgress, request, uri) {
this.clear();
}
},
/**
* Determines whether the command line should be visible.
*
* @returns {boolean}
*/
get commandVisible() !!this.commandSession,
/**
* Ensure that the multiline input widget is the correct size.
*/
_autosizeMultilineInputWidget: function _autosizeMultilineInputWidget() {
let lines = this.widgets.multilineInput.value.split("\n").length - 1;
this.widgets.multilineInput.setAttribute("rows", Math.max(lines, 1));
},
HL_NORMAL: "Normal",
HL_ERRORMSG: "ErrorMsg",
HL_MODEMSG: "ModeMsg",
HL_MOREMSG: "MoreMsg",
HL_QUESTION: "Question",
HL_INFOMSG: "InfoMsg",
HL_WARNINGMSG: "WarningMsg",
HL_LINENR: "LineNr",
FORCE_MULTILINE : 1 << 0,
FORCE_SINGLELINE : 1 << 1,
DISALLOW_MULTILINE : 1 << 2, // If an echo() should try to use the single line
// but output nothing when the MOW is open; when also
// FORCE_MULTILINE is given, FORCE_MULTILINE takes precedence
APPEND_TO_MESSAGES : 1 << 3, // Add the string to the message history.
ACTIVE_WINDOW : 1 << 4, // Only echo in active window.
get completionContext() this._completions.context,
_silent: false,
get silent() this._silent,
set silent(val) {
this._silent = val;
this.quiet = this.quiet;
},
_quite: false,
get quiet() this._quiet,
set quiet(val) {
this._quiet = val;
["commandbar", "statusbar"].forEach(function (nodeSet) {
Array.forEach(this.widgets[nodeSet].commandline.children, function (node) {
node.style.opacity = this._quiet || this._silent ? "0" : "";
}, this);
}, this);
},
widgets: Class.Memoize(() => CommandWidgets()),
runSilently: function runSilently(func, self) {
this.withSavedValues(["silent"], function () {
this.silent = true;
func.call(self);
});
},
get completionList() {
let node = this.widgets.active.commandline;
if (this.commandSession && this.commandSession.completionList)
node = document.getElementById(this.commandSession.completionList);
if (!node.completionList) {
let elem = document.getElementById("dactyl-completions-" + node.id);
util.waitFor(bind(this.widgets._ready, null, elem));
node.completionList = ItemList(elem);
node.completionList.isAboveMow = node.id ==
this.widgets.statusbar.commandline.id;
}
return node.completionList;
},
hideCompletions: function hideCompletions() {
for (let nodeSet in values([this.widgets.statusbar, this.widgets.commandbar]))
if (nodeSet.commandline.completionList)
nodeSet.commandline.completionList.visible = false;
},
_lastClearable: Modes.boundProperty(),
messages: Modes.boundProperty(),
multilineInputVisible: Modes.boundProperty({
set: function set_miwVisible(value) { this.widgets.multilineInput.collapsed = !value; }
}),
get command() {
if (this.commandVisible && this.widgets.command)
return commands.lastCommand = this.widgets.command[1];
return commands.lastCommand;
},
set command(val) {
if (this.commandVisible && (modes.extended & modes.EX))
return this.widgets.command = val;
return commands.lastCommand = val;
},
clear: function clear(scroll) {
if (!scroll || Date.now() - this._lastEchoTime > 5000)
this.clearMessage();
this._lastEchoTime = 0;
this.hiddenMessages = 0;
if (!this.commandSession) {
this.widgets.command = null;
this.hideCompletions();
}
if (modes.main == modes.OUTPUT_MULTILINE && !mow.isScrollable(1))
modes.pop();
if (!modes.have(modes.OUTPUT_MULTILINE))
mow.visible = false;
},
clearMessage: function clearMessage() {
if (this.widgets.message && this.widgets.message[1] === this._lastClearable) {
this.widgets.message = null;
this.hiddenMessages = 0;
}
},
/**
* Displays the multi-line output of a command, preceded by the last
* executed ex command string.
*
* @param {object} xml The output as a JSON XML object.
*/
commandOutput: function commandOutput(xml) {
if (!this.command)
this.echo(xml, this.HIGHLIGHT_NORMAL, this.FORCE_MULTILINE);
else
this.echo([["div", { xmlns: "html" }, ":" + this.command], "\n", xml],
this.HIGHLIGHT_NORMAL, this.FORCE_MULTILINE);
this.command = null;
},
/**
* Hides the command line, and shows any status messages that
* are under it.
*/
hide: function hide() {
this.widgets.command = null;
},
/**
* Display a message in the command-line area.
*
* @param {string} str
* @param {string} highlightGroup
* @param {boolean} forceSingle If provided, don't let over-long
* messages move to the MOW.
*/
_echoLine: function echoLine(str, highlightGroup, forceSingle, silent) {
this.widgets.message = str ? [highlightGroup, str, forceSingle] : null;
dactyl.triggerObserver("echoLine", str, highlightGroup, null, forceSingle);
if (!this.commandVisible)
this.hide();
let field = this.widgets.active.message.inputField;
if (field.value && !forceSingle && field.editor.rootElement.scrollWidth > field.scrollWidth) {
this.widgets.message = null;
mow.echo(["span", { highlight: "Message" }, str], highlightGroup, true);
}
},
_hiddenMessages: 0,
get hiddenMessages() this._hiddenMessages,
set hiddenMessages(val) {
this._hiddenMessages = val;
if (val)
this.widgets["message-pre"] = _("commandline.moreMessages", val) + " ";
else
this.widgets["message-pre"] = null;
},
_lastEcho: null,
/**
* Output the given string onto the command line. With no flags, the
* message will be shown in the status line if it's short enough to
* fit, and contains no new lines, and isn't XML. Otherwise, it will be
* shown in the MOW.
*
* @param {string} str
* @param {string} highlightGroup The Highlight group for the
* message.
* @default "Normal"
* @param {number} flags Changes the behavior as follows:
* commandline.APPEND_TO_MESSAGES - Causes message to be added to the
* messages history, and shown by :messages.
* commandline.FORCE_SINGLELINE - Forbids the command from being
* pushed to the MOW if it's too long or of there are already
* status messages being shown.
* commandline.DISALLOW_MULTILINE - Cancels the operation if the MOW
* is already visible.
* commandline.FORCE_MULTILINE - Forces the message to appear in
* the MOW.
*/
messageCount: 0,
echo: function echo(data, highlightGroup, flags) {
// dactyl.echo uses different order of flags as it omits the highlight group, change commandline.echo argument order? --mst
if (this._silent || !this.widgets)
return;
this.messageCount++;
highlightGroup = highlightGroup || this.HL_NORMAL;
let appendToMessages = (data) => {
let message = isObject(data) && !DOM.isJSONXML(data) ? data : { message: data };
// Make sure the memoized message property is an instance property.
message.message;
this._messageHistory.add(update({ highlight: highlightGroup }, message));
return message.message;
}
if (flags & this.APPEND_TO_MESSAGES)
data = appendToMessages(data);
if ((flags & this.ACTIVE_WINDOW) && window != overlay.activeWindow)
return;
if ((flags & this.DISALLOW_MULTILINE) && !this.widgets.mowContainer.collapsed)
return;
let forceSingle = flags & (this.FORCE_SINGLELINE | this.DISALLOW_MULTILINE);
let action = this._echoLine;
if ((flags & this.FORCE_MULTILINE) || (/\n/.test(data) || !isinstance(data, [_, "String"])) && !(flags & this.FORCE_SINGLELINE))
action = mow.bound.echo;
let checkSingleLine = () => action == this._echoLine;
if (forceSingle) {
this._lastEcho = null;
this.hiddenMessages = 0;
}
else {
// So complicated...
if (checkSingleLine() && !this.widgets.mowContainer.collapsed) {
highlightGroup += " Message";
action = mow.bound.echo;
}
else if (!checkSingleLine() && this.widgets.mowContainer.collapsed) {
if (this._lastEcho && this.widgets.message && this.widgets.message[1] == this._lastEcho.msg) {
if (!(this._lastEcho.flags & this.APPEND_TO_MESSAGES))
appendToMessages(this._lastEcho.data);
mow.echo(
["span", { highlight: "Message" },
["span", { highlight: "WarningMsg" },
_("commandline.moreMessages", this.hiddenMessages + 1) + " "],
this._lastEcho.msg],
this.widgets.message[0], true);
this.hiddenMessages = 0;
}
}
else if (this._lastEcho && this.widgets.message && this.widgets.message[1] == this._lastEcho.msg) {
if (!(this._lastEcho.flags & this.APPEND_TO_MESSAGES))
appendToMessages(this._lastEcho.data);
if (checkSingleLine() && !(flags & this.APPEND_TO_MESSAGES))
appendToMessages(data);
flags |= this.APPEND_TO_MESSAGES;
this.hiddenMessages++;
}
this._lastEcho = checkSingleLine() && { flags: flags, msg: data, data: arguments[0] };
}
this._lastClearable = action === this._echoLine && String(data);
this._lastEchoTime = (flags & this.FORCE_SINGLELINE) && Date.now();
if (action)
action.call(this, data, highlightGroup, checkSingleLine());
},
_lastEchoTime: 0,
/**
* Prompt the user. Sets modes.main to COMMAND_LINE, which the user may
* pop at any time to close the prompt.
*
* @param {string} prompt The input prompt to use.
* @param {Object} extra
* @... {function} onChange - A function to be called with the current
* input every time it changes.
* @... {function(CompletionContext)} completer - A completion function
* for the user's input.
* @... {string} promptHighlight - The HighlightGroup used for the
* prompt. @default "Question"
* @... {string} default - The initial value that will be returned
* if the user presses <CR> straightaway. @default ""
*/
input: promises.withCallbacks(function _input([callback, reject], prompt, extra={}, thing={}) {
if (callable(extra))
// Deprecated.
[callback, extra] = [extra, thing];
CommandPromptMode(prompt, update({ onSubmit: callback, onCancel: reject }, extra)).open();
}),
readHeredoc: function readHeredoc(end) {
return util.waitFor(commandline.inputMultiline(end));
},
/**
* Get a multi-line input from a user, up to but not including the line
* which matches the given regular expression. Then execute the
* callback with that string as a parameter.
*
* @param {string} end
* @returns {Promise<string>}
*/
// FIXME: Buggy, especially when pasting.
inputMultiline: promises.withCallbacks(function inputMultiline([callback], end) {
let cmd = this.command;
let self = {
end: "\n" + end + "\n",
callback: callback
};
modes.push(modes.INPUT_MULTILINE, null, {
holdFocus: true,
leave: function leave() {
if (!self.done)
self.callback(null);
},
mappingSelf: self
});
if (cmd != false)
this._echoLine(cmd, this.HL_NORMAL);
// save the arguments, they are needed in the event handler onKeyPress
this.multilineInputVisible = true;
this.widgets.multilineInput.value = "";
this._autosizeMultilineInputWidget();
this.timeout(function () { dactyl.focus(this.widgets.multilineInput); }, 10);
}),
get commandMode() this.commandSession && isinstance(modes.main, modes.COMMAND_LINE),
events: update(
iter(CommandMode.prototype.events).map(
([event, handler]) => [
event, function (event) {
if (this.commandMode)
handler.call(this.commandSession, event);
}
]).toObject(),
{
focus: function onFocus(event) {
if (!this.commandSession
&& event.originalTarget === this.widgets.active.command.inputField) {
event.target.blur();
dactyl.beep();
}
}
}
),
get mowEvents() mow.events,
/**
* Multiline input events, they will come straight from
* #dactyl-multiline-input in the XUL.
*
* @param {Event} event
*/
multilineInputEvents: {
blur: function onBlur(event) {
if (modes.main == modes.INPUT_MULTILINE)
this.timeout(function () {
dactyl.focus(this.widgets.multilineInput.inputField);
});
},
input: function onInput(event) {
this._autosizeMultilineInputWidget();
}
},
updateOutputHeight: deprecated("mow.resize", function updateOutputHeight(open, extra) mow.resize(open, extra)),
withOutputToString: function withOutputToString(fn, self, ...args) {
dactyl.registerObserver("echoLine", observe, true);
dactyl.registerObserver("echoMultiline", observe, true);
let output = [];
function observe(str, highlight, dom) {
output.push(dom && !isString(str) ? dom : str);
}
this.savingOutput = true;
dactyl.trapErrors.apply(dactyl, [fn, self].concat(args));
this.savingOutput = false;
return output.map(elem => elem instanceof Node ? DOM.stringify(elem) : elem)
.join("\n");
}
}, {
/**
* A class for managing the history of an input field.
*
* @param {HTMLInputElement} inputField
* @param {string} mode The mode for which we need history.
*/
History: Class("History", {
init: function init(inputField, mode, session) {
this.mode = mode;
this.input = inputField;
this.reset();
this.session = session;
},
get store() commandline._store.get(this.mode, []),
set store(ary) { commandline._store.set(this.mode, ary); },
/**
* Reset the history index to the first entry.
*/
reset: function reset() {
this.index = null;
},
/**
* Save the last entry to the permanent store. All duplicate entries
* are removed and the list is truncated, if necessary.
*/
save: function save() {
if (events.feedingKeys)
return;
let str = this.input.value;
if (/^\s*$/.test(str))
return;
let privateData = this.checkPrivate(str);
if (privateData == "never-save")
return;
let store = Array.filter(this.store, line => (line.value || line) != str);
dactyl.trapErrors(
() => store.push({ value: str, timestamp: Date.now() * 1000, privateData: privateData }));
this.store = store.slice(Math.max(0, store.length - options["history"]));
},
/**
* @property {function} Returns whether a data item should be
* considered private.
*/
checkPrivate: function checkPrivate(str) {
// Not really the ideal place for this check.
if (this.mode == "command")
return commands.hasPrivateData(str);
return false;
},
/**
* Replace the current input field value.
*
* @param {string} val The new value.
*/
replace: function replace(val) {
editor.withSavedValues(["skipSave"], function () {
editor.skipSave = true;
this.input.dactylKeyPress = undefined;
if (this.completions)
this.completions.previewClear();
this.input.value = val;
this.session.onHistory(val);
}, this);
},
/**
* Move forward or backward in history.
*
* @param {boolean} backward Direction to move.
* @param {boolean} matchCurrent Search for matches starting
* with the current input value.
*/
select: function select(backward, matchCurrent) {
// always reset the tab completion if we use up/down keys
if (this.session.completions)
this.session.completions.reset();
let diff = backward ? -1 : 1;
if (this.index == null) {
this.original = this.input.value;
this.index = this.store.length;
}
// search the history for the first item matching the current
// command-line string
while (true) {
this.index += diff;
if (this.index < 0 || this.index > this.store.length) {
this.index = Math.constrain(this.index, 0, this.store.length);
dactyl.beep();
// I don't know why this kludge is needed. It
// prevents the caret from moving to the end of
// the input field.
if (this.input.value == "") {
this.input.value = " ";
this.input.value = "";
}
break;
}
let hist = this.store[this.index];
// user pressed DOWN when there is no newer history item
if (!hist)
hist = this.original;
else
hist = (hist.value || hist);
if (!matchCurrent || hist.substr(0, this.original.length) == this.original) {
this.replace(hist);
break;
}
}
}
}),
/**
* A class for tab completions on an input field.
*
* @param {Object} input
*/
Completions: Class("Completions", {
UP: {},
DOWN: {},
CTXT_UP: {},
CTXT_DOWN: {},
PAGE_UP: {},
PAGE_DOWN: {},
RESET: null,
init: function init(input, session) {
let self = this;
this.context = CompletionContext(input.QueryInterface(Ci.nsIDOMNSEditableElement).editor);
this.context.onUpdate = function onUpdate() { self.asyncUpdate(this); };
this.editor = input.editor;
this.input = input;
this.session = session;
this.wildmode = options.get("wildmode");
this.wildtypes = this.wildmode.value;
this.itemList = commandline.completionList;
this.itemList.open(this.context);
dactyl.registerObserver("events.doneFeeding", this.bound.onDoneFeeding, true);
this.autocompleteTimer = Timer(200, 500, function autocompleteTell(tabPressed) {
if (events.feedingKeys && !tabPressed)
this.ignoredCount++;
else if (this.session.autocomplete) {
this.itemList.visible = true;
this.complete(true, false);
}
}, this);
this.tabTimer = Timer(0, 0, function tabTell(event) {
let tabCount = this.tabCount;
this.tabCount = 0;
this.tab(tabCount, event.altKey && options["altwildmode"]);
}, this);
},
tabCount: 0,
ignoredCount: 0,
/**
* @private
*/
onDoneFeeding: function onDoneFeeding() {
if (this.ignoredCount)
this.autocompleteTimer.flush(true);
this.ignoredCount = 0;
},
/**
* @private
*/
onTab: function onTab(event) {
this.tabCount += event.shiftKey ? -1 : 1;
this.tabTimer.tell(event);
},
get activeContexts() this.context.contextList
.filter(c => c.items.length || c.incomplete),
/**
* Returns the current completion string relative to the
* offset of the currently selected context.
*/
get completion() {
let offset = this.selected ? this.selected[0].offset : this.start;
return commandline.command.slice(offset, this.caret);
},
/**
* Updates the input field from *offset* to {@link #caret}
* with the value *value*. Afterward, the caret is moved
* just after the end of the updated text.
*
* @param {number} offset The offset in the original input
* string at which to insert *value*.
* @param {string} value The value to insert.
*/
setCompletion: function setCompletion(offset, value) {
editor.withSavedValues(["skipSave"], function () {
editor.skipSave = true;
this.previewClear();
if (value == null)
var [input, caret] = [this.originalValue, this.originalCaret];
else {
input = this.getCompletion(offset, value);
caret = offset + value.length;
}
// Change the completion text.
// The second line is a hack to deal with some substring
// preview corner cases.
commandline.widgets.active.command.value = input;
this.editor.selection.focusNode.textContent = input;
this.caret = caret;
this._caret = this.caret;
this.input.dactylKeyPress = undefined;
}, this);
},
/**
* For a given offset and completion string, returns the
* full input value after selecting that item.
*
* @param {number} offset The offset at which to insert the
* completion.
* @param {string} value The value to insert.
* @returns {string};
*/
getCompletion: function getCompletion(offset, value) {
return this.originalValue.substr(0, offset)
+ value
+ this.originalValue.substr(this.originalCaret);
},
get selected() this.itemList.selected,
set selected(tuple) {
if (!array.equals(tuple || [],
this.itemList.selected || []))
this.itemList.select(tuple);
if (!tuple)
this.setCompletion(null);
else {
let [ctxt, idx] = tuple;
this.setCompletion(ctxt.offset, ctxt.items[idx].result);
}
},
get caret() this.editor.selection.getRangeAt(0).startOffset,
set caret(offset) {
this.editor.selection.collapse(this.editor.rootElement.firstChild, offset);
},
get start() this.context.allItems.start,
get items() this.context.allItems.items,
get substring() this.context.longestAllSubstring,
get wildtype() this.wildtypes[this.wildIndex] || "",
/**
* Cleanup resources used by this completion session. This
* instance should not be used again once this method is
* called.
*/
cleanup: function cleanup() {
dactyl.unregisterObserver("events.doneFeeding", this.bound.onDoneFeeding);
this.previewClear();
this.tabTimer.reset();
this.autocompleteTimer.reset();
if (!this.onComplete)
this.context.cancelAll();
this.itemList.visible = false;
this.input.dactylKeyPress = undefined;
this.hasQuit = true;
},
/**
* Run the completer.
*
* @param {boolean} show Passed to {@link #reset}.
* @param {boolean} tabPressed Should be set to true if, and
* only if, this function is being called in response
* to a <Tab> press.
*/
complete: function complete(show, tabPressed) {
this.session.ignoredCount = 0;
this.waiting = null;
this.context.reset();
this.context.tabPressed = tabPressed;
this.session.complete(this.context);
if (!this.session.active)
return;
this.reset(show, tabPressed);
this.wildIndex = 0;
this._caret = this.caret;
},
/**
* Clear any preview string and cancel any pending
* asynchronous context. Called when there is further input
* to be processed.
*/
clear: function clear() {
this.context.cancelAll();
this.wildIndex = -1;
this.previewClear();
},
/**
* Saves the current input state. To be called before an
* item is selected in a new set of completion responses.
* @private
*/
saveInput: function saveInput() {
this.originalValue = this.context.value;
this.originalCaret = this.caret;
},
/**
* Resets the completion state.
*
* @param {boolean} show If true and options allow the
* completion list to be shown, show it.
*/
reset: function reset(show) {
this.waiting = null;
this.wildIndex = -1;
this.saveInput();
if (show) {
this.itemList.update();
this.context.updateAsync = true;
if (this.haveType("list"))
this.itemList.visible = true;
this.wildIndex = 0;
}
this.preview();
},
/**
* Calls when an asynchronous completion context has new
* results to return.
*
* @param {CompletionContext} context The changed context.
* @private
*/
asyncUpdate: function asyncUpdate(context) {
if (this.hasQuit) {
let item = this.getItem(this.waiting);
if (item && this.waiting && this.onComplete) {
util.trapErrors("onComplete", this,
this.getCompletion(this.waiting[0].offset,
item.result));
this.waiting = null;
this.context.cancelAll();
}
return;
}
let value = this.editor.selection.focusNode.textContent;
this.saveInput();
if (this.itemList.visible)
this.itemList.updateContext(context);
if (this.waiting && this.waiting[0] == context)
this.select(this.waiting);
else if (!this.waiting) {
let cursor = this.selected;
if (cursor && cursor[0] == context) {
let item = this.getItem(cursor);
if (!item || this.completion != item.result)
this.itemList.select(null);
}
this.preview();
}
},
/**
* Returns true if the currently selected 'wildmode' index
* has the given completion type.
*/
haveType: function haveType(type)
this.wildmode.checkHas(this.wildtype, type == "first" ? "" : type),
/**
* Returns the completion item for the given selection
* tuple.
*
* @param {[CompletionContext,number]} tuple The spec of the
* item to return.
* @default {@link #selected}
* @returns {object}
*/
getItem: function getItem(tuple=this.selected)
tuple && tuple[0] && tuple[0].items[tuple[1]],
/**
* Returns a tuple representing the next item, at the given
* *offset*, from *tuple*.
*
* @param {[CompletionContext,number]} tuple The offset from
* which to search.
* @default {@link #selected}
* @param {number} offset The positive or negative offset to
* find.
* @default 1
* @param {boolean} noWrap If true, and the search would
* wrap, return null.
*/
nextItem: function nextItem(tuple, offset, noWrap) {
if (tuple === undefined)
tuple = this.selected;
return this.itemList.getRelativeItem(offset || 1, tuple, noWrap);
},
/**
* The last previewed substring.
* @private
*/
lastSubstring: "",
/**
* Displays a preview of the text provided by the next <Tab>
* press if the current input is an anchored substring of
* that result.
*/
preview: function preview() {
this.previewClear();
if (this.wildIndex < 0 || this.caret < this.input.value.length
|| !this.activeContexts.length || this.waiting)
return;
let substring = "";
switch (this.wildtype.replace(/.*:/, "")) {
case "":
var cursor = this.nextItem(null);
break;
case "longest":
if (this.items.length > 1) {
substring = this.substring;
break;
}
// Fallthrough
case "full":
cursor = this.nextItem();
break;
}
if (cursor)
substring = this.getItem(cursor).result;
// Don't show 1-character substrings unless we've just hit backspace
if (substring.length < 2 && this.lastSubstring.indexOf(substring))
return;
this.lastSubstring = substring;
let value = this.completion;
if (util.compareIgnoreCase(value, substring.substr(0, value.length)))
return;
substring = substring.substr(value.length);
this.removeSubstring = substring;
let node = DOM.fromJSON(["span", { highlight: "Preview" }, substring],
document);
this.withSavedValues(["caret"], function () {
this.editor.insertNode(node, this.editor.rootElement, 1);
});
},
/**
* Clears the currently displayed next-<Tab> preview string.
*/
previewClear: function previewClear() {
let node = this.editor.rootElement.firstChild;
if (node && node.nextSibling) {
try {
DOM(node.nextSibling).remove();
}
catch (e) {
node.nextSibling.textContent = "";
}
}
else if (this.removeSubstring) {
let str = this.removeSubstring;
let cmd = commandline.widgets.active.command.value;
if (cmd.substr(cmd.length - str.length) == str)
commandline.widgets.active.command.value = cmd.substr(0, cmd.length - str.length);
}
delete this.removeSubstring;
},
/**
* Selects a completion based on the value of *idx*.
*
* @param {[CompletionContext,number]|const object} The
* (context,index) tuple of the item to select, or an
* offset constant from this object.
* @param {number} count When given an offset constant,
* select *count* units.
* @default 1
* @param {boolean} fromTab If true, this function was
* called by {@link #tab}.
* @default false
* @private
*/
select: function select(idx, count=1, fromTab=false) {
switch (idx) {
case this.UP:
case this.DOWN:
idx = this.nextItem(this.waiting || this.selected,
idx == this.UP ? -count : count,
true);
break;
case this.CTXT_UP:
case this.CTXT_DOWN:
let groups = this.itemList.activeGroups;
let i = Math.max(0, groups.indexOf(this.itemList.selectedGroup));
i += idx == this.CTXT_DOWN ? 1 : -1;
i %= groups.length;
if (i < 0)
i += groups.length;
var position = 0;
idx = [groups[i].context, 0];
break;
case this.PAGE_UP:
case this.PAGE_DOWN:
idx = this.itemList.getRelativePage(idx == this.PAGE_DOWN ? 1 : -1);
break;
case this.RESET:
idx = null;
break;
default:
break;
}
if (!fromTab)
this.wildIndex = this.wildtypes.length - 1;
if (idx && idx[1] >= idx[0].items.length) {
if (!idx[0].incomplete)
this.waiting = null;
else {
this.waiting = idx;
statusline.progress = _("completion.waitingForResults");
}
return;
}
this.waiting = null;
this.itemList.select(idx, null, position);
this.selected = idx;
this.preview();
if (this.selected == null)
statusline.progress = "";
else
statusline.progress = _("completion.matchIndex",
this.itemList.getOffset(idx),
this.itemList.itemCount);
},
/**
* Selects a completion result based on the 'wildmode'
* option, or the value of the *wildmode* parameter.
*
* @param {number} offset The positive or negative number of
* tab presses to process.
* @param {[string]} wildmode A 'wildmode' value to
* substitute for the value of the 'wildmode' option.
* @optional
*/
tab: function tab(offset, wildmode) {
this.autocompleteTimer.flush();
this.ignoredCount = 0;
if (this._caret != this.caret)
this.reset();
this._caret = this.caret;
// Check if we need to run the completer.
if (this.context.waitingForTab || this.wildIndex == -1)
this.complete(true, true);
this.wildtypes = wildmode || options["wildmode"];
let count = Math.abs(offset);
let steps = Math.constrain(this.wildtypes.length - this.wildIndex,
1, count);
count = Math.max(1, count - steps);
while (steps--) {
this.wildIndex = Math.min(this.wildIndex, this.wildtypes.length - 1);
switch (this.wildtype.replace(/.*:/, "")) {
case "":
this.select(this.nextItem(null));
break;
case "longest":
if (this.itemList.itemCount > 1) {
if (this.substring && this.substring.length > this.completion.length)
this.setCompletion(this.start, this.substring);
break;
}
// Fallthrough
case "full":
let c = steps ? 1 : count;
this.select(offset < 0 ? this.UP : this.DOWN, c, true);
break;
}
if (this.haveType("list"))
this.itemList.visible = true;
this.wildIndex++;
}
if (this.items.length == 0 && !this.waiting)
dactyl.beep();
}
}),
/**
* Evaluate a JavaScript expression and return a string suitable
* to be echoed.
*
* @param {string} arg
* @param {boolean} useColor When true, the result is a
* highlighted XML object.
*/
echoArgumentToString: function (arg, useColor) {
if (!arg)
return "";
arg = dactyl.userEval(arg);
if (isObject(arg))
arg = util.objectToString(arg, useColor);
else if (callable(arg))
arg = String.replace(arg, "/* use strict */ \n", "/* use strict */ ");
else if (!isString(arg) && useColor)
arg = template.highlight(arg);
return arg;
}
}, {
commands: function initCommands() {
[
{
name: "ec[ho]",
description: "Echo the expression",
action: dactyl.echo
},
{
name: "echoe[rr]",
description: "Echo the expression as an error message",
action: dactyl.echoerr
},
{
name: "echom[sg]",
description: "Echo the expression as an informational message",
action: dactyl.echomsg
}
].forEach(function (command) {
commands.add([command.name],
command.description,
function (args) {
command.action(CommandLine.echoArgumentToString(args[0] || "", true));
}, {
completer: function (context) completion.javascript(context),
literal: 0
});
});
commands.add(["mes[sages]"],
"Display previously shown messages",
function () {
// TODO: are all messages single line? Some display an aggregation
// of single line messages at least. E.g. :source
if (commandline._messageHistory.length == 1) {
let message = commandline._messageHistory.messages[0];
commandline.echo(message.message, message.highlight, commandline.FORCE_SINGLELINE);
}
else if (commandline._messageHistory.length > 1) {
commandline.commandOutput(
template.map(commandline._messageHistory.messages, message =>
["div", { highlight: message.highlight + " Message" },
message.message]));
}
},
{ argCount: "0" });
commands.add(["messc[lear]"],
"Clear the message history",
function () { commandline._messageHistory.clear(); },
{ argCount: "0" });
commands.add(["sil[ent]"],
"Run a command silently",
function (args) {
commandline.runSilently(() => { commands.execute(args[0] || "", null, true); });
}, {
completer: function (context) completion.ex(context),
literal: 0,
subCommand: 0
});
},
modes: function initModes() {
initModes.require("editor");
modes.addMode("COMMAND_LINE", {
char: "c",
description: "Active when the command line is focused",
insert: true,
ownsFocus: true,
get mappingSelf() commandline.commandSession
});
// this._extended modes, can include multiple modes, and even main modes
modes.addMode("EX", {
description: "Ex command mode, active when the command line is open for Ex commands",
bases: [modes.COMMAND_LINE]
});
modes.addMode("PROMPT", {
description: "Active when a prompt is open in the command line",
bases: [modes.COMMAND_LINE]
});
modes.addMode("INPUT_MULTILINE", {
description: "Active when the command line's multiline input buffer is open",
bases: [modes.INSERT]
});
},
mappings: function initMappings() {
mappings.add([modes.COMMAND],
[":"], "Enter Command Line mode",
function () { CommandExMode().open(""); });
mappings.add([modes.INPUT_MULTILINE],
["<Return>", "<C-j>", "<C-m>"], "Begin a new line",
function ({ self }) {
let text = "\n" + commandline.widgets.multilineInput
.value.substr(0, commandline.widgets.multilineInput.selectionStart)
+ "\n";
let index = text.indexOf(self.end);
if (index >= 0) {
self.done = true;
text = text.substring(1, index);
modes.pop();
return () => self.callback.call(commandline, text);
}
return Events.PASS;
});
let bind = function bind(...args) mappings.add.apply(mappings, [[modes.COMMAND_LINE]].concat(args));
bind(["<Esc>", "<C-[>"], "Stop waiting for completions or exit Command Line mode",
function ({ self }) {
if (self.completions && self.completions.waiting)
self.completions.waiting = null;
else
return Events.PASS;
});
// Any "non-keyword" character triggers abbreviation expansion
// TODO: Add "<CR>" and "<Tab>" to this list
// At the moment, adding "<Tab>" breaks tab completion. Adding
// "<CR>" has no effect.
// TODO: Make non-keyword recognition smarter so that there need not
// be two lists of the same characters (one here and a regexp in
// mappings.js)
bind(["<Space>", '"', "'"], "Expand command line abbreviation",
function ({ self }) {
self.resetCompletions();
editor.expandAbbreviation(modes.COMMAND_LINE);
return Events.PASS;
});
bind(["<Return>", "<C-j>", "<C-m>"], "Accept the current input",
function ({ self }) {
if (self.completions)
self.completions.tabTimer.flush();
let command = commandline.command;
self.accepted = true;
return function () { modes.pop(); };
});
[
[["<Up>", "<A-p>", "<cmd-prev-match>"], "previous matching", true, true],
[["<S-Up>", "<C-p>", "<cmd-prev>"], "previous", true, false],
[["<Down>", "<A-n>", "<cmd-next-match>"], "next matching", false, true],
[["<S-Down>", "<C-n>", "<cmd-next>"], "next", false, false]
].forEach(function ([keys, desc, up, search]) {
bind(keys, "Recall the " + desc + " command line from the history list",
function ({ self }) {
dactyl.assert(self.history);
self.history.select(up, search);
});
});
bind(["<A-Tab>", "<Tab>", "<A-compl-next>", "<compl-next>"],
"Select the next matching completion item",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.onTab(keypressEvents[0]);
});
bind(["<A-S-Tab>", "<S-Tab>", "<A-compl-prev>", "<compl-prev>"],
"Select the previous matching completion item",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.onTab(keypressEvents[0]);
});
bind(["<C-Tab>", "<A-f>", "<compl-next-group>"],
"Select the next matching completion group",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.tabTimer.flush();
self.completions.select(self.completions.CTXT_DOWN);
});
bind(["<C-S-Tab>", "<A-S-f>", "<compl-prev-group>"],
"Select the previous matching completion group",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.tabTimer.flush();
self.completions.select(self.completions.CTXT_UP);
});
bind(["<C-f>", "<PageDown>", "<compl-next-page>"],
"Select the next page of completions",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.tabTimer.flush();
self.completions.select(self.completions.PAGE_DOWN);
});
bind(["<C-b>", "<PageUp>", "<compl-prev-page>"],
"Select the previous page of completions",
function ({ keypressEvents, self }) {
dactyl.assert(self.completions);
self.completions.tabTimer.flush();
self.completions.select(self.completions.PAGE_UP);
});
bind(["<BS>", "<C-h>"], "Delete the previous character",
function () {
if (!commandline.command)
modes.pop();
else
return Events.PASS;
});
bind(["<C-]>", "<C-5>"], "Expand command line abbreviation",
function () { editor.expandAbbreviation(modes.COMMAND_LINE); });
},
options: function initOptions() {
options.add(["history", "hi"],
"Number of Ex commands and search patterns to store in the command-line history",
"number", 500,
{ validator: function (value) value >= 0 });
options.add(["maxitems"],
"Maximum number of completion items to display at once",
"number", 20,
{ validator: function (value) value >= 1 });
options.add(["messages", "msgs"],
"Number of messages to store in the :messages history",
"number", 100,
{ validator: function (value) value >= 0 });
},
sanitizer: function initSanitizer() {
sanitizer.addItem("commandline", {
description: "Command-line and search history",
persistent: true,
action: function (timespan, host) {
let store = commandline._store;
for (let [k, v] in store) {
if (k == "command")
store.set(k, v.filter(item =>
!(timespan.contains(item.timestamp) && (!host || commands.hasDomain(item.value, host)))));
else if (!host)
store.set(k, v.filter(item => !timespan.contains(item.timestamp)));
}
}
});
// Delete history-like items from the commandline and messages on history purge
sanitizer.addItem("history", {
action: function (timespan, host) {
commandline._store.set("command",
commandline._store.get("command", []).filter(item =>
!(timespan.contains(item.timestamp) && (host ? commands.hasDomain(item.value, host)
: item.privateData))));
commandline._messageHistory.filter(item =>
( !timespan.contains(item.timestamp * 1000)
|| !item.domains && !item.privateData
|| host && ( !item.domains
|| !item.domains.some(d => util.isSubdomain(d, host)))));
}
});
sanitizer.addItem("messages", {
description: "Saved :messages",
action: function (timespan, host) {
commandline._messageHistory.filter(item =>
( !timespan.contains(item.timestamp * 1000)
|| host && ( !item.domains
|| !item.domains.some(d => util.isSubdomain(d, host)))));
}
});
}
});
/**
* The list which is used for the completion box.
*
* @param {string} id The id of the iframe which will display the list. It
* must be in its own container element, whose height it will update as
* necessary.
*/
var ItemList = Class("ItemList", {
CONTEXT_LINES: 2,
init: function init(frame) {
this.frame = frame;
this.doc = frame.contentDocument;
this.win = frame.contentWindow;
this.body = this.doc.body;
this.container = frame.parentNode;
highlight.highlightNode(this.doc.body, "Comp");
this._onResize = Timer(20, 400, function _onResize(event) {
if (this.visible)
this.onResize(event);
}, this);
this._resize = Timer(20, 400, function _resize(flags) {
if (this.visible)
this.resize(flags);
}, this);
DOM(this.win).resize(this._onResize.bound.tell);
},
get rootXML()
["div", { highlight: "Normal", style: "white-space: nowrap", key: "root" },
["div", { key: "wrapper" },
["div", { highlight: "Completions", key: "noCompletions" },
["span", { highlight: "Title" },
_("completion.noCompletions")]],
["div", { key: "completions" }]],
["div", { highlight: "Completions" },
template.map(util.range(0, options["maxitems"] * 2), i =>
["div", { highlight: "CompItem NonText" },
"~"])]],
get itemCount() this.context.contextList
.reduce((acc, ctxt) => acc + ctxt.items.length, 0),
get visible() !this.container.collapsed,
set visible(val) this.container.collapsed = !val,
get activeGroups() this.context.contextList
.filter(c => c.items.length || c.message || c.incomplete)
.map(this.getGroup, this),
get selected() let (g = this.selectedGroup) g && g.selectedIdx != null
? [g.context, g.selectedIdx] : null,
getRelativeItem: function getRelativeItem(offset, tuple, noWrap) {
let groups = this.activeGroups;
if (!groups.length)
return null;
let group = this.selectedGroup || groups[0];
let start = group.selectedIdx || 0;
if (tuple === null) { // Kludge.
if (offset > 0)
tuple = [this.activeGroups[0], -1];
else {
let group = this.activeGroups.slice(-1)[0];
tuple = [group, group.itemCount];
}
}
if (tuple)
[group, start] = tuple;
group = this.getGroup(group);
start = (group.offsets.start + start + offset);
if (!noWrap)
start %= this.itemCount || 1;
if (start < 0 && (!noWrap || arguments[1] === null))
start += this.itemCount;
if (noWrap && offset > 0) {
// Check if we've passed any incomplete contexts
let i = groups.indexOf(group);
util.assert(i >= 0, undefined, false);
for (; i < groups.length; i++) {
let end = groups[i].offsets.start + groups[i].itemCount;
if (start >= end && groups[i].context.incomplete)
return [groups[i].context, start - groups[i].offsets.start];
if (start >= end);
break;
}
}
if (start < 0 || start >= this.itemCount)
return null;
group = groups.find(g => let (i = start - g.offsets.start) i >= 0 && i < g.itemCount);
return [group.context, start - group.offsets.start];
},
getRelativePage: function getRelativePage(offset, tuple, noWrap) {
offset *= this.maxItems;
// Try once with wrapping disabled.
let res = this.getRelativeItem(offset, tuple, true);
if (!res) {
// Wrapped.
let sign = offset / Math.abs(offset);
let off = this.getOffset(tuple === null ? null : tuple || this.selected);
if (off == null)
// Unselected. Defer to getRelativeItem.
res = this.getRelativeItem(offset, null, noWrap);
else if (~[0, this.itemCount - 1].indexOf(off))
// At start or end. Jump to other end.
res = this.getRelativeItem(sign, null, noWrap);
else
// Wrapped. Go to beginning or end.
res = this.getRelativeItem(-sign, null);
}
return res;
},
/**
* Initializes the ItemList for use with a new root completion
* context.
*
* @param {CompletionContext} context The new root context.
*/
open: function open(context) {
this.context = context;
this.nodes = {};
this.container.height = 0;
this.minHeight = 0;
this.maxItems = options["maxitems"];
DOM(this.rootXML, this.doc, this.nodes)
.appendTo(DOM(this.body).empty());
this.update();
},
/**
* Updates the absolute result indices of all groups after
* results have changed.
* @private
*/
updateOffsets: function updateOffsets() {
let total = this.itemCount;
let count = 0;
for (let group in values(this.activeGroups)) {
group.offsets = { start: count, end: total - count - group.itemCount };
count += group.itemCount;
}
},
/**
* Updates the set and state of active groups for a new set of
* completion results.
*/
update: function update() {
DOM(this.nodes.completions).empty();
let container = DOM(this.nodes.completions);
let groups = this.activeGroups;
for (let group in values(groups)) {
group.reset();
container.append(group.nodes.root);
}
this.updateOffsets();
DOM(this.nodes.noCompletions).toggle(!groups.length);
this.startPos = null;
this.select(groups[0] && groups[0].context, null);
this._resize.tell();
},
/**
* Updates the group for *context* after an asynchronous update
* push.
*
* @param {CompletionContext} context The context which has
* changed.
*/
updateContext: function updateContext(context) {
let group = this.getGroup(context);
this.updateOffsets();
if (~this.activeGroups.indexOf(group))
group.update();
else {
DOM(group.nodes.root).remove();
if (this.selectedGroup == group)
this.selectedGroup = null;
}
let g = this.selectedGroup;
this.select(g, g && g.selectedIdx);
},
/**
* Updates the DOM to reflect the current state of all groups.
* @private
*/
draw: function draw() {
for (let group in values(this.activeGroups))
group.draw();
// We need to collect all of the rescrolling functions in
// one go, as the height calculation that they need to do
// would force an expensive reflow after each call due to
// DOM modifications, otherwise.
this.activeGroups.filter(g => !g.collapsed)
.map(g => g.rescrollFunc)
.forEach(call);
if (!this.selected)
this.win.scrollTo(0, 0);
this._resize.tell(ItemList.RESIZE_BRIEF);
},
onResize: function onResize() {
if (this.selectedGroup)
this.selectedGroup.rescrollFunc();
},
minHeight: 0,
/**
* Resizes the list after an update.
* @private
*/
resize: function resize(flags) {
let { completions, root } = this.nodes;
if (!this.visible)
root.style.minWidth = document.getElementById("dactyl-commandline").scrollWidth + "px";
let { minHeight } = this;
if (mow.visible && this.isAboveMow) // Kludge.
minHeight -= mow.wantedHeight;
let needed = this.win.scrollY + DOM(completions).rect.bottom;
this.minHeight = Math.max(minHeight, needed);
if (!this.visible)
root.style.minWidth = "";
let height = this.visible ? parseFloat(this.container.height) : 0;
if (this.minHeight <= minHeight || !mow.visible)
this.container.height = Math.min(this.minHeight,
height + config.outputHeight - mow.spaceNeeded);
else {
// FIXME: Belongs elsewhere.
mow.resize(false, Math.max(0, this.minHeight - this.container.height));
this.container.height = this.minHeight - mow.spaceNeeded;
mow.resize(false);
this.timeout(function () {
this.container.height -= mow.spaceNeeded;
});
}
},
/**
* Selects the item at the given *group* and *index*.
*
* @param {CompletionContext|[CompletionContext,number]} *group* The
* completion context to select, or a tuple specifying the
* context and item index.
* @param {number} index The item index in *group* to select.
* @param {number} position If non-null, try to position the
* selected item at the *position*th row from the top of
* the screen. Note that at least {@link #CONTEXT_LINES}
* lines will be visible above and below the selected item
* unless there aren't enough results to make this possible.
* @optional
*/
select: function select(group, index, position) {
if (isArray(group))
[group, index] = group;
group = this.getGroup(group);
if (this.selectedGroup && (!group || group != this.selectedGroup))
this.selectedGroup.selectedIdx = null;
this.selectedGroup = group;
if (group)
group.selectedIdx = index;
let groups = this.activeGroups;
if (position != null || !this.startPos && groups.length)
this.startPos = [group || groups[0], position || 0];
if (groups.length) {
group = group || groups[0];
let idx = groups.indexOf(group);
let start = this.startPos[0].getOffset(this.startPos[1]);
if (group) {
let idx = group.selectedIdx || 0;
let off = group.getOffset(idx);
start = Math.constrain(start,
off + Math.min(this.CONTEXT_LINES,
group.itemCount - idx + group.offsets.end)
- this.maxItems + 1,
off - Math.min(this.CONTEXT_LINES,
idx + group.offsets.start));
}
let count = this.maxItems;
for (let group in values(groups)) {
let off = Math.max(0, start - group.offsets.start);
group.count = Math.constrain(group.itemCount - off, 0, count);
count -= group.count;
group.collapsed = group.offsets.start >= start + this.maxItems
|| group.offsets.start + group.itemCount < start;
group.range = ItemList.Range(off, off + group.count);
if (!startPos)
var startPos = [group, group.range.start];
}
this.startPos = startPos;
}
this.draw();
},
/**
* Returns an ItemList group for the given completion context,
* creating one if necessary.
*
* @param {CompletionContext} context
* @returns {ItemList.Group}
*/
getGroup: function getGroup(context)
context instanceof ItemList.Group ? context
: context && context.getCache("itemlist-group",
() => ItemList.Group(this, context)),
getOffset: function getOffset(tuple) tuple && this.getGroup(tuple[0]).getOffset(tuple[1])
}, {
RESIZE_BRIEF: 1 << 0,
WAITING_MESSAGE: _("completion.generating"),
Group: Class("ItemList.Group", {
init: function init(parent, context) {
this.parent = parent;
this.context = context;
this.offsets = {};
this.range = ItemList.Range(0, 0);
},
get rootXML()
["div", { key: "root", highlight: "CompGroup" },
["div", { highlight: "Completions" },
this.context.createRow(this.context.title || [], "CompTitle")],
["div", { highlight: "CompTitleSep" }],
["div", { key: "contents" },
["div", { key: "up", highlight: "CompLess" }],
["div", { key: "message", highlight: "CompMsg" },
this.context.message || []],
["div", { key: "itemsContainer", class: "completion-items-container" },
["div", { key: "items", highlight: "Completions" }]],
["div", { key: "waiting", highlight: "CompMsg" },
ItemList.WAITING_MESSAGE],
["div", { key: "down", highlight: "CompMore" }]]],
get doc() this.parent.doc,
get win() this.parent.win,
get maxItems() this.parent.maxItems,
get itemCount() this.context.items.length,
/**
* Returns a function which will update the scroll offsets
* and heights of various DOM members.
* @private
*/
get rescrollFunc() {
let container = this.nodes.itemsContainer;
let pos = DOM(container).rect.top;
let start = DOM(this.getRow(this.range.start)).rect.top;
let height = DOM(this.getRow(this.range.end - 1)).rect.bottom - start || 0;
let scroll = start + container.scrollTop - pos;
let win = this.win;
let row = this.selectedRow;
if (row && this.parent.minHeight) {
let { rect } = DOM(this.selectedRow);
var scrollY = this.win.scrollY + rect.bottom - this.win.innerHeight;
}
return function () {
container.style.height = height + "px";
container.scrollTop = scroll;
if (scrollY != null)
win.scrollTo(0, Math.max(scrollY, 0));
};
},
/**
* Reset this group for use with a new set of results.
*/
reset: function reset() {
this.nodes = {};
this.generatedRange = ItemList.Range(0, 0);
DOM.fromJSON(this.rootXML, this.doc, this.nodes);
},
/**
* Update this group after an asynchronous results push.
*/
update: function update() {
this.generatedRange = ItemList.Range(0, 0);
DOM(this.nodes.items).empty();
if (this.context.message)
DOM(this.nodes.message).empty()
.append(DOM.fromJSON(this.context.message, this.doc));
if (this.selectedIdx > this.itemCount)
this.selectedIdx = null;
},
/**
* Updates the DOM to reflect the current state of this
* group.
* @private
*/
draw: function draw() {
DOM(this.nodes.contents).toggle(!this.collapsed);
if (this.collapsed)
return;
DOM(this.nodes.message).toggle(this.context.message && this.range.start == 0);
DOM(this.nodes.waiting).toggle(this.context.incomplete && this.range.end <= this.itemCount);
DOM(this.nodes.up).toggle(this.range.start > 0);
DOM(this.nodes.down).toggle(this.range.end < this.itemCount);
if (!this.generatedRange.contains(this.range)) {
if (this.generatedRange.end == 0)
var [start, end] = this.range;
else {
start = this.range.start - (this.range.start <= this.generatedRange.start
? this.maxItems / 2 : 0);
end = this.range.end + (this.range.end > this.generatedRange.end
? this.maxItems / 2 : 0);
}
let range = ItemList.Range(Math.max(0, start - start % 2),
Math.min(this.itemCount, end));
let first;
for (let [i, row] in this.context.getRows(this.generatedRange.start,
this.generatedRange.end,
this.doc))
if (!range.contains(i))
DOM(row).remove();
else if (!first)
first = row;
let container = DOM(this.nodes.items);
let before = first ? DOM(first).bound.before
: DOM(this.nodes.items).bound.append;
for (let [i, row] in this.context.getRows(range.start, range.end,
this.doc)) {
if (i < this.generatedRange.start)
before(row);
else if (i >= this.generatedRange.end)
container.append(row);
if (i == this.selectedIdx)
this.selectedIdx = this.selectedIdx;
}
this.generatedRange = range;
}
},
getRow: function getRow(idx) this.context.getRow(idx, this.doc),
getOffset: function getOffset(idx) this.offsets.start + (idx || 0),
get selectedRow() this.getRow(this._selectedIdx),
get selectedIdx() this._selectedIdx,
set selectedIdx(idx) {
if (this.selectedRow && this._selectedIdx != idx)
DOM(this.selectedRow).attr("selected", null);
this._selectedIdx = idx;
if (this.selectedRow)
DOM(this.selectedRow).attr("selected", true);
}
}),
Range: Class.Memoize(function () {
let Range = Struct("ItemList.Range", "start", "end");
update(Range.prototype, {
contains: function contains(idx)
typeof idx == "number" ? idx >= this.start && idx < this.end
: this.contains(idx.start) &&
idx.end >= this.start && idx.end <= this.end
});
return Range;
})
});
// vim: set fdm=marker sw=4 sts=4 ts=8 et:
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