--- /dev/null
+// Copyright (c) 2008-2011 by Kris Maglione <maglione.k at Gmail>
+//
+// 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 ProcessorStack = Class("ProcessorStack", {
+ init: function (mode, hives, builtin) {
+ this.main = mode.main;
+ this._actions = [];
+ this.actions = [];
+ this.buffer = "";
+ this.events = [];
+
+ events.dbg("STACK " + mode);
+
+ let main = { __proto__: mode.main, params: mode.params };
+ this.modes = array([mode.params.keyModes, main, mode.main.allBases.slice(1)]).flatten().compact();
+
+ if (builtin)
+ hives = hives.filter(function (h) h.name === "builtin");
+
+ this.processors = this.modes.map(function (m) hives.map(function (h) KeyProcessor(m, h)))
+ .flatten().array;
+ this.ownsBuffer = !this.processors.some(function (p) p.main.ownsBuffer);
+
+ for (let [i, input] in Iterator(this.processors)) {
+ let params = input.main.params;
+
+ if (params.preExecute)
+ input.preExecute = params.preExecute;
+
+ if (params.postExecute)
+ input.postExecute = params.postExecute;
+
+ if (params.onKeyPress && input.hive === mappings.builtin)
+ input.fallthrough = function fallthrough(events) {
+ return params.onKeyPress(events) === false ? Events.KILL : Events.PASS;
+ };
+ }
+
+ let hive = options.get("passkeys")[this.main.input ? "inputHive" : "commandHive"];
+ if (!builtin && hive.active && (!dactyl.focusedElement || events.isContentNode(dactyl.focusedElement)))
+ this.processors.unshift(KeyProcessor(modes.BASE, hive));
+ },
+
+ passUnknown: Class.Memoize(function () options.get("passunknown").getKey(this.modes)),
+
+ notify: function () {
+ events.dbg("NOTIFY()");
+ events.keyEvents = [];
+ events.processor = null;
+ if (!this.execute(undefined, true)) {
+ events.processor = this;
+ events.keyEvents = this.keyEvents;
+ }
+ },
+
+ _result: function (result) (result === Events.KILL ? "KILL" :
+ result === Events.PASS ? "PASS" :
+ result === Events.PASS_THROUGH ? "PASS_THROUGH" :
+ result === Events.ABORT ? "ABORT" :
+ callable(result) ? result.toSource().substr(0, 50) : result),
+
+ execute: function execute(result, force) {
+ events.dbg("EXECUTE(" + this._result(result) + ", " + force + ") events:" + this.events.length
+ + " processors:" + this.processors.length + " actions:" + this.actions.length);
+
+ let processors = this.processors;
+ let length = 1;
+
+ if (force)
+ this.processors = [];
+
+ if (this.ownsBuffer)
+ statusline.inputBuffer = this.processors.length ? this.buffer : "";
+
+ if (!this.processors.some(function (p) !p.extended) && this.actions.length) {
+ // We have matching actions and no processors other than
+ // those waiting on further arguments. Execute actions as
+ // long as they continue to return PASS.
+
+ for (var action in values(this.actions)) {
+ while (callable(action)) {
+ length = action.eventLength;
+ action = dactyl.trapErrors(action);
+ events.dbg("ACTION RES: " + length + " " + this._result(action));
+ }
+ if (action !== Events.PASS)
+ break;
+ }
+
+ // Result is the result of the last action. Unless it's
+ // PASS, kill any remaining argument processors.
+ result = action !== undefined ? action : Events.KILL;
+ if (action !== Events.PASS)
+ this.processors.length = 0;
+ }
+ else if (this.processors.length) {
+ // We're still waiting on the longest matching processor.
+ // Kill the event, set a timeout to give up waiting if applicable.
+
+ result = Events.KILL;
+ if (options["timeout"] && (this.actions.length || events.hasNativeKey(this.events[0], this.main, this.passUnknown)))
+ this.timer = services.Timer(this, options["timeoutlen"], services.Timer.TYPE_ONE_SHOT);
+ }
+ else if (result !== Events.KILL && !this.actions.length &&
+ !(this.events[0].isReplay || this.passUnknown
+ || this.modes.some(function (m) m.passEvent(this), this.events[0]))) {
+ // No patching processors, this isn't a fake, pass-through
+ // event, we're not in pass-through mode, and we're not
+ // choosing to pass unknown keys. Kill the event and beep.
+
+ result = Events.ABORT;
+ if (!Events.isEscape(this.events.slice(-1)[0]))
+ dactyl.beep();
+ events.feedingKeys = false;
+ }
+ else if (result === undefined)
+ // No matching processors, we're willing to pass this event,
+ // and we don't have a default action from a processor. Just
+ // pass the event.
+ result = Events.PASS;
+
+ events.dbg("RESULT: " + length + " " + this._result(result) + "\n\n");
+
+ if (result !== Events.PASS || this.events.length > 1)
+ if (result !== Events.ABORT || !this.events[0].isReplay)
+ Events.kill(this.events[this.events.length - 1]);
+
+ if (result === Events.PASS_THROUGH || result === Events.PASS && this.passUnknown)
+ events.passing = true;
+
+ if (result === Events.PASS_THROUGH && this.keyEvents.length)
+ events.dbg("PASS_THROUGH:\n\t" + this.keyEvents.map(function (e) [e.type, DOM.Event.stringify(e)]).join("\n\t"));
+
+ if (result === Events.PASS_THROUGH)
+ events.feedevents(null, this.keyEvents, { skipmap: true, isMacro: true, isReplay: true });
+ else {
+ let list = this.events.filter(function (e) e.getPreventDefault() && !e.dactylDefaultPrevented);
+
+ if (result === Events.PASS)
+ events.dbg("PASS THROUGH: " + list.slice(0, length).filter(function (e) e.type === "keypress").map(DOM.Event.closure.stringify));
+ if (list.length > length)
+ events.dbg("REFEED: " + list.slice(length).filter(function (e) e.type === "keypress").map(DOM.Event.closure.stringify));
+
+ if (result === Events.PASS)
+ events.feedevents(null, list.slice(0, length), { skipmap: true, isMacro: true, isReplay: true });
+ if (list.length > length && this.processors.length === 0)
+ events.feedevents(null, list.slice(length));
+ }
+
+ return this.processors.length === 0;
+ },
+
+ process: function process(event) {
+ if (this.timer)
+ this.timer.cancel();
+
+ let key = DOM.Event.stringify(event);
+ this.events.push(event);
+ if (this.keyEvents)
+ this.keyEvents.push(event);
+
+ this.buffer += key;
+
+ let actions = [];
+ let processors = [];
+
+ events.dbg("PROCESS(" + key + ") skipmap: " + event.skipmap + " macro: " + event.isMacro + " replay: " + event.isReplay);
+
+ for (let [i, input] in Iterator(this.processors)) {
+ let res = input.process(event);
+ if (res !== Events.ABORT)
+ var result = res;
+
+ events.dbg("RES: " + input + " " + this._result(res));
+
+ if (res === Events.KILL)
+ break;
+
+ if (callable(res))
+ actions.push(res);
+
+ if (res === Events.WAIT || input.waiting)
+ processors.push(input);
+ if (isinstance(res, KeyProcessor))
+ processors.push(res);
+ }
+
+ events.dbg("RESULT: " + event.getPreventDefault() + " " + this._result(result));
+ events.dbg("ACTIONS: " + actions.length + " " + this.actions.length);
+ events.dbg("PROCESSORS:", processors, "\n");
+
+ this._actions = actions;
+ this.actions = actions.concat(this.actions);
+
+ for (let action in values(actions))
+ if (!("eventLength" in action))
+ action.eventLength = this.events.length;
+
+ if (result === Events.KILL)
+ this.actions = [];
+ else if (!this.actions.length && !processors.length)
+ for (let input in values(this.processors))
+ if (input.fallthrough) {
+ if (result === Events.KILL)
+ break;
+ result = dactyl.trapErrors(input.fallthrough, input, this.events);
+ }
+
+ this.processors = processors;
+
+ return this.execute(result, options["timeout"] && options["timeoutlen"] === 0);
+ }
+});
+
+var KeyProcessor = Class("KeyProcessor", {
+ init: function init(main, hive) {
+ this.main = main;
+ this.events = [];
+ this.hive = hive;
+ this.wantCount = this.main.count;
+ },
+
+ get toStringParams() [this.main.name, this.hive.name],
+
+ countStr: "",
+ command: "",
+ get count() this.countStr ? Number(this.countStr) : this.main.params.count || null,
+
+ append: function append(event) {
+ this.events.push(event);
+ let key = DOM.Event.stringify(event);
+
+ if (this.wantCount && !this.command &&
+ (this.countStr ? /^[0-9]$/ : /^[1-9]$/).test(key))
+ this.countStr += key;
+ else
+ this.command += key;
+ return this.events;
+ },
+
+ process: function process(event) {
+ this.append(event);
+ this.waiting = false;
+ return this.onKeyPress(event);
+ },
+
+ execute: function execute(map, args)
+ let (self = this)
+ function execute() {
+ if (self.preExecute)
+ self.preExecute.apply(self, args);
+
+ args.self = self.main.params.mappingSelf || self.main.mappingSelf || map;
+ let res = map.execute.call(map, args);
+
+ if (self.postExecute)
+ self.postExecute.apply(self, args);
+ return res;
+ },
+
+ onKeyPress: function onKeyPress(event) {
+ if (event.skipmap)
+ return Events.ABORT;
+
+ if (!this.command)
+ return Events.WAIT;
+
+ var map = this.hive.get(this.main, this.command);
+ this.waiting = this.hive.getCandidates(this.main, this.command);
+ if (map) {
+ if (map.arg)
+ return KeyArgProcessor(this, map, false, "arg");
+ else if (map.motion)
+ return KeyArgProcessor(this, map, true, "motion");
+
+ return this.execute(map, {
+ command: this.command,
+ count: this.count,
+ keyEvents: events.keyEvents,
+ keypressEvents: this.events
+ });
+ }
+
+ if (!this.waiting)
+ return this.main.insert ? Events.PASS : Events.ABORT;
+
+ return Events.WAIT;
+ }
+});
+
+var KeyArgProcessor = Class("KeyArgProcessor", KeyProcessor, {
+ init: function init(input, map, wantCount, argName) {
+ init.supercall(this, input.main, input.hive);
+ this.map = map;
+ this.parent = input;
+ this.argName = argName;
+ this.wantCount = wantCount;
+ },
+
+ extended: true,
+
+ onKeyPress: function onKeyPress(event) {
+ if (Events.isEscape(event))
+ return Events.KILL;
+ if (!this.command)
+ return Events.WAIT;
+
+ let args = {
+ command: this.parent.command,
+ count: this.count || this.parent.count,
+ keyEvents: events.keyEvents,
+ keypressEvents: this.parent.events.concat(this.events)
+ };
+ args[this.argName] = this.command;
+
+ return this.execute(this.map, args);
+ }
+});
+
projects / dactyl.git / blobdiff