完善图片画布素材与上下文操作

添加素材拖拽上传遮罩、素材移动和默认文件夹归一

补齐画布右键菜单、复制剪切粘贴、层级和翻转操作

补齐生成图入库、项目返回入口和项目名称标题

扩展画布测试覆盖素材、右键菜单、生成图和布局交互

src/components/image-editor/ImageCanvasEditorPrimitives.tsx

@@ -1,6 +1,7 @@
 import type {
   ComponentType,
   DragEventHandler,
+  MouseEventHandler,
   PointerEventHandler,
   ReactNode,
 } from 'react';
@@ -68,9 +69,14 @@ export type SidebarMediaItemProps = {
   primaryClassName?: string;
   actions?: ReactNode;
   titleNode?: ReactNode;
+  draggable?: boolean;
+  onDragStart?: DragEventHandler<HTMLDivElement>;
+  onDragEnd?: DragEventHandler<HTMLDivElement>;
   onDragOver?: DragEventHandler<HTMLDivElement>;
   onDrop?: DragEventHandler<HTMLDivElement>;
+  onPointerDown?: PointerEventHandler<HTMLDivElement>;
   onPointerEnter?: PointerEventHandler<HTMLDivElement>;
+  onContextMenu?: MouseEventHandler<HTMLDivElement>;
 };
 
 export function SidebarMediaItem({
@@ -87,16 +93,26 @@ export function SidebarMediaItem({
   primaryClassName,
   actions,
   titleNode,
+  draggable,
+  onDragStart,
+  onDragEnd,
   onDragOver,
   onDrop,
+  onPointerDown,
   onPointerEnter,
+  onContextMenu,
 }: SidebarMediaItemProps) {
   return (
     <div
       className={`${rowClassName} ${selected ? `${rowClassName}--selected` : ''}`}
+      draggable={draggable}
+      onDragStart={onDragStart}
+      onDragEnd={onDragEnd}
       onDragOver={onDragOver}
       onDrop={onDrop}
+      onPointerDown={onPointerDown}
       onPointerEnter={onPointerEnter}
+      onContextMenu={onContextMenu}
     >
       <button
         type="button"

src/index.css

@@ -3328,6 +3328,7 @@ html[data-mobile-keyboard-open='true'] .platform-mobile-bottom-dock {
 }
 
 .image-canvas-editor__icon-button,
+.image-canvas-editor__project-back-button,
 .image-canvas-editor__floating-toolbar button,
 .image-canvas-editor__bottom-toolbar button,
 .image-canvas-editor__reset-button {
@@ -3345,6 +3346,7 @@ html[data-mobile-keyboard-open='true'] .platform-mobile-bottom-dock {
 }
 
 .image-canvas-editor__icon-button:hover,
+.image-canvas-editor__project-back-button:hover,
 .image-canvas-editor__floating-toolbar button:hover,
 .image-canvas-editor__bottom-toolbar button:hover,
 .image-canvas-editor__reset-button:hover {
@@ -3487,6 +3489,40 @@ html[data-mobile-keyboard-open='true'] .platform-mobile-bottom-dock {
   pointer-events: none;
 }
 
+.image-canvas-editor__upload-drop-overlay {
+  position: absolute;
+  z-index: 30;
+  display: grid;
+  place-content: center;
+  gap: 0.3rem;
+  border: 1.5px dashed rgba(37, 99, 235, 0.72);
+  background: rgba(239, 246, 255, 0.78);
+  color: #1d4ed8;
+  pointer-events: none;
+  text-align: center;
+  backdrop-filter: blur(2px);
+}
+
+.image-canvas-editor__upload-drop-overlay span {
+  font-size: 0.82rem;
+  font-weight: 820;
+}
+
+.image-canvas-editor__upload-drop-overlay strong {
+  font-size: 1rem;
+  font-weight: 920;
+}
+
+.image-canvas-editor__upload-drop-overlay--assets {
+  inset: 0.45rem;
+  border-radius: 0.55rem;
+}
+
+.image-canvas-editor__upload-drop-overlay--canvas {
+  inset: 0.85rem;
+  border-radius: 0.65rem;
+}
+
 .image-canvas-editor__canvas-marquee {
   position: absolute;
   z-index: 7;
@@ -3701,6 +3737,24 @@ html[data-mobile-keyboard-open='true'] .platform-mobile-bottom-dock {
   padding: 0.55rem 0.7rem;
 }
 
+.image-canvas-editor__topbar-title {
+  display: inline-flex;
+  min-width: 0;
+  align-items: center;
+  gap: 0.55rem;
+}
+
+.image-canvas-editor__project-back-button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2.15rem;
+  height: 2.15rem;
+  flex-shrink: 0;
+  border-radius: 0.45rem;
+  text-decoration: none;
+}
+
 .image-canvas-editor__zoom-menu-wrap {
   position: relative;
   z-index: 20;
@@ -3799,6 +3853,63 @@ html[data-mobile-keyboard-open='true'] .platform-mobile-bottom-dock {
   box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.9);
 }
 
+.image-canvas-editor__layer--locked {
+  cursor: default;
+}
+
+.image-canvas-editor__context-menu {
+  position: fixed;
+  z-index: 80;
+  display: grid;
+  min-width: 168px;
+  max-height: calc(100vh - 16px);
+  overflow: hidden;
+  padding: 0.35rem;
+  border: 1px solid rgba(148, 163, 184, 0.32);
+  border-radius: 0.45rem;
+  background: rgba(255, 255, 255, 0.96);
+  box-shadow: 0 18px 52px rgba(15, 23, 42, 0.18);
+  color: #172033;
+}
+
+.image-canvas-editor__context-menu button {
+  display: flex;
+  align-items: center;
+  width: 100%;
+  min-height: 2rem;
+  border: 0;
+  border-radius: 0.32rem;
+  background: transparent;
+  padding: 0 0.65rem;
+  color: inherit;
+  font-size: 0.86rem;
+  font-weight: 720;
+  text-align: left;
+  cursor: default;
+}
+
+.image-canvas-editor__context-menu button:hover:not(:disabled),
+.image-canvas-editor__context-menu button:focus-visible:not(:disabled) {
+  background: rgba(37, 99, 235, 0.1);
+  outline: none;
+}
+
+.image-canvas-editor__context-menu button:disabled {
+  color: rgba(100, 116, 139, 0.5);
+}
+
+.image-canvas-editor__context-menu hr {
+  width: 100%;
+  height: 1px;
+  border: 0;
+  background: rgba(148, 163, 184, 0.25);
+  margin: 0.3rem 0;
+}
+
+.image-canvas-editor__context-menu-danger {
+  color: #b42318 !important;
+}
+
 .image-canvas-editor__generation-frame {
   position: absolute;
   z-index: 6;