feat: initial commit - Jhonny Editor
- Adicionado estrutura completa do projeto - Configurado MCP server para Premiere Pro - Adicionado documentação e skills - Configurado Gitignore para o projeto
This commit is contained in:
João Henrique
+362
@@ -0,0 +1,362 @@
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(function (root, factory) {
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const api = factory();
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if (typeof module === "object" && module.exports) module.exports = api;
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root.PremiereMcpSlipWorkflows = api;
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})(typeof globalThis !== "undefined" ? globalThis : this, function () {
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"use strict";
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// A slip is deliberately a separate, narrow operation rather than a
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// convenience alias for trackItem.update: it preserves timeline timing,
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// requires the complete reviewed state, and serializes its whole guarded
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// preflight/transaction/readback boundary per target.
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function createSlipWorkflowDefinitions(deps) {
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const ppro = deps.ppro;
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const fallbackTails = new Map();
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const locks = deps.locks && typeof deps.locks.withTrackMutationLock === "function"
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? deps.locks
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: { withTrackMutationLock: localLock };
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const definitions = {
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"trackItem.slip.inspect": {
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readOnly: true,
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targetCapabilityProbe: true,
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minHostVersion: "25.6.0",
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probe: canUseTrackItemSlip,
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handler: inspectTrackItemSlip
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},
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"trackItem.slip": {
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destructive: true,
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undoable: true,
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idempotent: true,
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targetCapabilityProbe: true,
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minHostVersion: "25.6.0",
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probe: canUseTrackItemSlip,
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handler: slipTrackItem
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}
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};
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function canUseTrackItemSlip() {
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return !!(ppro.Project && typeof ppro.Project.getActiveProject === "function" &&
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ppro.TickTime && typeof ppro.TickTime.createWithSeconds === "function");
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}
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async function inspectTrackItemSlip(args) {
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assertOnlyKeys(args, ["mediaType", "trackIndex", "clipIndex"]);
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const context = await activeTarget(args, false);
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return await slipSnapshot(context);
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}
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async function slipTrackItem(args) {
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assertOnlyKeys(args, ["mediaType", "trackIndex", "clipIndex", "expectedSnapshot", "slipBySeconds", "confirmSlip", "operationId"]);
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requireConfirmation(args.confirmSlip);
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requireOperationId(args.operationId);
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const target = targetCoordinates(args);
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const expected = requiredSnapshot(args.expectedSnapshot);
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const requestedOffset = signedOffset(args.slipBySeconds);
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assertExpectedTarget(expected, target);
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const initial = await activeTarget(target, true);
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if (expected.projectGuid !== initial.projectGuid || expected.sequenceId !== initial.sequenceId) {
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throw commandError("UXP_STALE_TRACK_ITEM", "The active project or sequence no longer matches the reviewed slip snapshot");
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}
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// Slides can trim either immediate neighbour, so slips and slides share
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// a track-level lock rather than allowing different command families to
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// pass one another with independently reviewed snapshots.
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const key = initial.projectGuid + "\u0000" + initial.sequenceId + "\u0000" + target.mediaType + "\u0000" + target.trackIndex;
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return locks.withTrackMutationLock(key, async function () {
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// Resolve the active target only after entering the per-item tail so
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// a different operation ID cannot reuse a snapshot taken before a
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// prior slip completed.
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const context = await activeTarget(target, true);
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if (context.projectGuid !== expected.projectGuid || context.sequenceId !== expected.sequenceId) {
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throw commandError("UXP_STALE_TRACK_ITEM", "The active project or sequence changed before the slip transaction");
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}
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const before = await slipSnapshot(context);
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if (!sameSnapshot(before, expected)) {
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throw commandError("UXP_STALE_TRACK_ITEM", "The timeline item changed since the reviewed slip snapshot");
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}
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assertSlipSupported(before);
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const desired = desiredSlip(before, requestedOffset);
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// The complete asynchronous snapshot is captured immediately before
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// this synchronous action-creation boundary. The keyed tail prevents
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// another MCP slip from interleaving between this check and readback.
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let committed = false;
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context.project.lockedAccess(function () {
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if (guidString(context.project.guid) !== before.projectGuid || guidString(context.sequence.guid) !== before.sequenceId) {
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throw commandError("UXP_STALE_TRACK_ITEM", "The reviewed project or sequence changed before slip action creation");
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}
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const inAction = createPointAction(context.item, "createSetInPointAction", desired.inSeconds, "source in point");
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const outAction = createPointAction(context.item, "createSetOutPointAction", desired.outSeconds, "source out point");
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committed = context.project.executeTransaction(function (compoundAction) {
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if (compoundAction.addAction(inAction) === false || compoundAction.addAction(outAction) === false) {
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throw commandError("UXP_ACTION_REJECTED", "Premiere rejected a slip action");
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}
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}, "Slip timeline item source");
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});
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if (!committed) throw commandError("UXP_TRANSACTION_FAILED", "Premiere did not commit the slip transaction");
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// Resolve by coordinate again rather than trusting the retained object.
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// An action may have committed even when this verification fails, so
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// callers must inspect before issuing another edit after that error.
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const afterContext = await activeTarget(target, true);
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if (afterContext.projectGuid !== before.projectGuid || afterContext.sequenceId !== before.sequenceId) {
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throw commandError("UXP_VERIFICATION_FAILED", "Premiere changed the active project or sequence during the committed slip");
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}
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const after = await slipSnapshot(afterContext);
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if (!sameSlipResult(before, after, desired)) {
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throw commandError("UXP_VERIFICATION_FAILED", "Premiere did not retain the requested source-only slip");
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}
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return {
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slipped: true,
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before,
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after,
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slipBySeconds: requestedOffset,
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outcome: "verified",
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verificationBoundary: "track_item_source_and_timeline_readback",
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undoLabel: "Slip timeline item source"
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};
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});
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}
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async function activeTarget(args, requireTransaction) {
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if (!ppro.Project || typeof ppro.Project.getActiveProject !== "function") {
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throw commandError("UXP_COMMAND_UNAVAILABLE", "Premiere project APIs are unavailable");
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}
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const project = await ppro.Project.getActiveProject();
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if (!project) throw commandError("UXP_NO_ACTIVE_PROJECT", "No active project");
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if (requireTransaction && (typeof project.lockedAccess !== "function" || typeof project.executeTransaction !== "function")) {
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throw commandError("UXP_COMMAND_UNAVAILABLE", "This Premiere build does not expose locked undoable transactions");
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}
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if (typeof project.getActiveSequence !== "function") throw commandError("UXP_COMMAND_UNAVAILABLE", "Premiere cannot resolve the active sequence");
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const sequence = await project.getActiveSequence();
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if (!sequence) throw commandError("UXP_NO_ACTIVE_SEQUENCE", "No active sequence");
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const projectGuid = requiredGuid(project.guid, "active project GUID"), sequenceId = requiredGuid(sequence.guid, "active sequence GUID");
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const target = targetCoordinates(args), item = await trackItemAt(sequence, target);
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return { project, sequence, item, projectGuid, sequenceId, ...target };
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}
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async function trackItemAt(sequence, target) {
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const title = target.mediaType === "video" ? "Video" : "Audio";
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const countMethod = "get" + title + "TrackCount", trackMethod = "get" + title + "Track";
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if (typeof sequence[countMethod] !== "function" || typeof sequence[trackMethod] !== "function") {
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throw commandError("UXP_COMMAND_UNAVAILABLE", target.mediaType + " track APIs are unavailable");
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}
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const count = Number(await sequence[countMethod]());
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if (!Number.isSafeInteger(count) || count < 0) throw commandError("UXP_VERIFICATION_FAILED", "Premiere returned an invalid " + target.mediaType + " track count");
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if (target.trackIndex >= count) throw commandError("UXP_TARGET_NOT_FOUND", target.mediaType + " trackIndex is out of range");
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const track = await sequence[trackMethod](target.trackIndex);
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const itemType = ppro.Constants && ppro.Constants.TrackItemType;
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if (!track || !itemType || itemType.CLIP == null || typeof track.getTrackItems !== "function") {
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throw commandError("UXP_COMMAND_UNAVAILABLE", "Clip track-item APIs are unavailable");
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}
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const items = Array.from(await track.getTrackItems(itemType.CLIP, false) || []);
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if (items.length > 512) throw commandError("UXP_TARGET_TOO_LARGE", "The target track has more than 512 clip items");
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const item = items[target.clipIndex];
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if (!item) throw commandError("UXP_TARGET_NOT_FOUND", "clipIndex is out of range");
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return item;
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}
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async function slipSnapshot(context) {
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const snapshot = {
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projectGuid: context.projectGuid,
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sequenceId: context.sequenceId,
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mediaType: context.mediaType,
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trackIndex: context.trackIndex,
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clipIndex: context.clipIndex,
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startSeconds: tickSeconds(await requiredMethod(context.item, "getStartTime")()),
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endSeconds: tickSeconds(await requiredMethod(context.item, "getEndTime")()),
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inSeconds: tickSeconds(await requiredMethod(context.item, "getInPoint")()),
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outSeconds: tickSeconds(await requiredMethod(context.item, "getOutPoint")()),
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durationSeconds: tickSeconds(await requiredMethod(context.item, "getDuration")()),
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speed: Number(await requiredMethod(context.item, "getSpeed")()),
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reversed: Boolean(await requiredMethod(context.item, "isSpeedReversed")())
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};
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for (const key of ["startSeconds", "endSeconds", "inSeconds", "outSeconds", "durationSeconds"]) {
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if (!Number.isFinite(snapshot[key]) || snapshot[key] < 0 || snapshot[key] > 86400) {
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throw commandError("UXP_VERIFICATION_FAILED", "Premiere returned an invalid " + key + " for the timeline item");
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}
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}
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if (!Number.isFinite(snapshot.speed) || snapshot.speed < 0 || snapshot.speed > 100) {
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throw commandError("UXP_VERIFICATION_FAILED", "Premiere returned an invalid timeline-item speed");
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}
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return snapshot;
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}
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function desiredSlip(before, offset) {
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const sourceDuration = before.outSeconds - before.inSeconds;
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if (!numbersEqual(before.endSeconds - before.startSeconds, before.durationSeconds) ||
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!numbersEqual(sourceDuration, before.durationSeconds) || sourceDuration <= 0) {
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throw commandError("UXP_TARGET_UNSUPPORTED", "Slip requires an unchanged forward 1x timeline and source duration");
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}
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const inSeconds = before.inSeconds + offset, outSeconds = before.outSeconds + offset;
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if (inSeconds < 0 || outSeconds > 86400 || outSeconds <= inSeconds) {
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throw commandError("UXP_TARGET_UNSUPPORTED", "The requested slip exceeds the documented source-time bounds");
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}
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return { inSeconds, outSeconds, sourceDuration };
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}
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function assertSlipSupported(snapshot) {
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if (!numbersEqual(snapshot.speed, 1) || snapshot.reversed) {
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throw commandError("UXP_TARGET_UNSUPPORTED", "Slip only supports forward 1x track items");
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}
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}
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function sameSlipResult(before, after, desired) {
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return sameSnapshotIdentity(before, after) &&
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numbersEqual(after.startSeconds, before.startSeconds) &&
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numbersEqual(after.endSeconds, before.endSeconds) &&
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numbersEqual(after.durationSeconds, before.durationSeconds) &&
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numbersEqual(after.speed, before.speed) && after.reversed === before.reversed &&
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numbersEqual(after.inSeconds, desired.inSeconds) && numbersEqual(after.outSeconds, desired.outSeconds) &&
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numbersEqual(after.outSeconds - after.inSeconds, desired.sourceDuration);
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}
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function sameSnapshot(left, right) {
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return sameSnapshotIdentity(left, right) &&
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numbersEqual(left.startSeconds, right.startSeconds) &&
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numbersEqual(left.endSeconds, right.endSeconds) &&
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numbersEqual(left.inSeconds, right.inSeconds) &&
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numbersEqual(left.outSeconds, right.outSeconds) &&
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numbersEqual(left.durationSeconds, right.durationSeconds) &&
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numbersEqual(left.speed, right.speed) && left.reversed === right.reversed;
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}
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function sameSnapshotIdentity(left, right) {
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return left.projectGuid === right.projectGuid && left.sequenceId === right.sequenceId &&
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left.mediaType === right.mediaType && left.trackIndex === right.trackIndex && left.clipIndex === right.clipIndex;
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}
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function localLock(key, operation) {
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const previous = fallbackTails.get(key) || Promise.resolve();
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let release;
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const gate = new Promise(function (resolve) { release = resolve; });
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const tail = previous.catch(function () { return undefined; }).then(function () { return gate; });
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fallbackTails.set(key, tail);
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return previous.catch(function () { return undefined; }).then(operation).finally(function () {
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release();
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if (fallbackTails.get(key) === tail) fallbackTails.delete(key);
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});
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}
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function createPointAction(item, method, seconds, label) {
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const creator = requiredMethod(item, method);
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const action = creator(ppro.TickTime.createWithSeconds(seconds));
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if (!action) throw commandError("UXP_ACTION_REJECTED", "Premiere did not create the " + label + " action");
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return action;
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}
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function targetCoordinates(args) {
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return {
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mediaType: enumValue(args.mediaType, "mediaType", ["video", "audio"]),
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trackIndex: nonNegativeInt(args.trackIndex, "trackIndex"),
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clipIndex: nonNegativeInt(args.clipIndex, "clipIndex")
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};
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}
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function requiredSnapshot(value) {
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assertObject(value, "expectedSnapshot");
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const allowed = ["projectGuid", "sequenceId", "mediaType", "trackIndex", "clipIndex", "startSeconds", "endSeconds", "inSeconds", "outSeconds", "durationSeconds", "speed", "reversed"];
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assertOnlyKeys(value, allowed);
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for (const key of allowed) if (!(key in value)) throw commandError("UXP_INVALID_ARGUMENT", "expectedSnapshot." + key + " is required");
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return {
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projectGuid: requiredGuid(value.projectGuid, "expectedSnapshot.projectGuid"),
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sequenceId: requiredGuid(value.sequenceId, "expectedSnapshot.sequenceId"),
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mediaType: enumValue(value.mediaType, "expectedSnapshot.mediaType", ["video", "audio"]),
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trackIndex: nonNegativeInt(value.trackIndex, "expectedSnapshot.trackIndex"),
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clipIndex: nonNegativeInt(value.clipIndex, "expectedSnapshot.clipIndex"),
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startSeconds: boundedSeconds(value.startSeconds, "expectedSnapshot.startSeconds"),
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endSeconds: boundedSeconds(value.endSeconds, "expectedSnapshot.endSeconds"),
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inSeconds: boundedSeconds(value.inSeconds, "expectedSnapshot.inSeconds"),
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outSeconds: boundedSeconds(value.outSeconds, "expectedSnapshot.outSeconds"),
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durationSeconds: boundedSeconds(value.durationSeconds, "expectedSnapshot.durationSeconds"),
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speed: boundedSpeed(value.speed, "expectedSnapshot.speed"),
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reversed: requiredBoolean(value.reversed, "expectedSnapshot.reversed")
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};
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}
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function assertExpectedTarget(expected, target) {
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if (expected.mediaType !== target.mediaType || expected.trackIndex !== target.trackIndex || expected.clipIndex !== target.clipIndex) {
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throw commandError("UXP_INVALID_ARGUMENT", "expectedSnapshot target coordinates must match mediaType, trackIndex, and clipIndex");
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}
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}
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function signedOffset(value) {
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const offset = Number(value);
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if (!Number.isFinite(offset) || offset < -60 || offset > 60 || numbersEqual(offset, 0)) {
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throw commandError("UXP_INVALID_ARGUMENT", "slipBySeconds must be a non-zero number from -60 to 60");
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}
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return offset;
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}
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function requiredMethod(target, name) {
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if (!target || typeof target[name] !== "function") throw commandError("UXP_COMMAND_UNAVAILABLE", "The timeline item does not expose " + name);
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return target[name].bind(target);
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}
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function requiredGuid(value, name) {
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const guid = guidString(value);
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if (!guid || guid.length > 128 || guid.indexOf("\u0000") !== -1) throw commandError("UXP_VERIFICATION_FAILED", name + " is unavailable or invalid");
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return guid;
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}
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function guidString(value) {
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if (value == null) return "";
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try { return typeof value.toString === "function" ? String(value.toString()) : String(value); } catch (_) { return ""; }
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}
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function tickSeconds(value) {
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const seconds = value && Number(value.seconds);
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return Number.isFinite(seconds) ? seconds : null;
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}
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function numbersEqual(left, right) {
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return Number.isFinite(Number(left)) && Number.isFinite(Number(right)) && Math.abs(Number(left) - Number(right)) < 0.000001;
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}
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return definitions;
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}
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function assertObject(value, name) {
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if (!value || typeof value !== "object" || Array.isArray(value)) throw commandError("UXP_INVALID_ARGUMENT", name + " must be an object");
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}
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function assertOnlyKeys(value, allowed) {
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assertObject(value, "arguments");
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for (const key of Object.keys(value)) if (allowed.indexOf(key) === -1) throw commandError("UXP_INVALID_ARGUMENT", "Unexpected argument: " + key);
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}
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function enumValue(value, name, allowed) {
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if (allowed.indexOf(value) === -1) throw commandError("UXP_INVALID_ARGUMENT", name + " must be one of " + allowed.join(", "));
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return value;
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}
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function nonNegativeInt(value, name) {
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if (!Number.isSafeInteger(value) || value < 0 || value > 511) throw commandError("UXP_INVALID_ARGUMENT", name + " must be an integer from 0 to 511");
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return value;
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}
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function boundedSeconds(value, name) {
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const seconds = Number(value);
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if (!Number.isFinite(seconds) || seconds < 0 || seconds > 86400) throw commandError("UXP_INVALID_ARGUMENT", name + " must be a number from 0 to 86400");
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return seconds;
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}
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function boundedSpeed(value, name) {
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const speed = Number(value);
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if (!Number.isFinite(speed) || speed < 0 || speed > 100) throw commandError("UXP_INVALID_ARGUMENT", name + " must be a number from 0 to 100");
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return speed;
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}
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function requiredBoolean(value, name) {
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if (typeof value !== "boolean") throw commandError("UXP_INVALID_ARGUMENT", name + " must be a boolean");
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return value;
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}
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function requireConfirmation(value) {
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if (value !== true) throw commandError("UXP_CONFIRMATION_REQUIRED", "confirmSlip must be true after reviewing the complete slip snapshot");
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}
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function requireOperationId(value) {
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if (typeof value !== "string" || !/^[A-Za-z0-9._:-]{1,128}$/.test(value)) {
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throw commandError("UXP_INVALID_ARGUMENT", "operationId is required and must be a 1-128 character operation token");
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}
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return value;
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}
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function commandError(code, message) {
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const error = new Error(message);
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error.code = code;
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return error;
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}
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return { createSlipWorkflowDefinitions };
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});
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