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package.dist.prod.util.dragAndDrop.DragRegistry.js.map Maven / Gradle / Ivy
{
"version": 3,
"sources": ["../../../../src/util/dragAndDrop/DragRegistry.ts"],
"sourcesContent": ["import type UI5Element from \"../../UI5Element.js\";\n\nlet draggedElement: HTMLElement | null = null;\nlet globalHandlersAttached = false;\nconst subscribers = new Set();\nconst selfManagedDragAreas = new Set();\n\nconst ondragstart = (e: DragEvent) => {\n\tif (!e.dataTransfer || !(e.target instanceof HTMLElement)) {\n\t\treturn;\n\t}\n\n\tif (!selfManagedDragAreas.has(e.target)) {\n\t\tdraggedElement = e.target;\n\t}\n};\n\nconst ondragend = () => {\n\tdraggedElement = null;\n};\n\nconst ondrop = () => {\n\tdraggedElement = null;\n};\n\nconst setDraggedElement = (element: HTMLElement | null) => {\n\tdraggedElement = element;\n};\ntype SetDraggedElementFunction = typeof setDraggedElement;\n\nconst getDraggedElement = () => {\n\treturn draggedElement;\n};\n\nconst attachGlobalHandlers = () => {\n\tif (globalHandlersAttached) {\n\t\treturn;\n\t}\n\n\tdocument.body.addEventListener(\"dragstart\", ondragstart);\n\tdocument.body.addEventListener(\"dragend\", ondragend);\n\tdocument.body.addEventListener(\"drop\", ondrop);\n};\n\nconst detachGlobalHandlers = () => {\n\tdocument.body.removeEventListener(\"dragstart\", ondragstart);\n\tdocument.body.removeEventListener(\"dragend\", ondragend);\n\tdocument.body.removeEventListener(\"drop\", ondrop);\n\tglobalHandlersAttached = false;\n};\n\nconst subscribe = (subscriber: UI5Element) => {\n\tsubscribers.add(subscriber);\n\n\tif (!globalHandlersAttached) {\n\t\tattachGlobalHandlers();\n\t}\n};\n\nconst unsubscribe = (subscriber: UI5Element) => {\n\tsubscribers.delete(subscriber);\n\n\tif (subscribers.size === 0 && globalHandlersAttached) {\n\t\tdetachGlobalHandlers();\n\t}\n};\n\nconst addSelfManagedArea = (area: HTMLElement | ShadowRoot) => {\n\tselfManagedDragAreas.add(area);\n\n\treturn setDraggedElement;\n};\n\nconst removeSelfManagedArea = (area: HTMLElement | ShadowRoot) => {\n\tselfManagedDragAreas.delete(area);\n};\n\nconst DragRegistry = {\n\tsubscribe,\n\tunsubscribe,\n\taddSelfManagedArea,\n\tremoveSelfManagedArea,\n\tgetDraggedElement,\n};\n\nexport default DragRegistry;\nexport type {\n\tSetDraggedElementFunction,\n};\n"],
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"names": ["draggedElement", "globalHandlersAttached", "subscribers", "selfManagedDragAreas", "ondragstart", "ondragend", "ondrop", "setDraggedElement", "element", "getDraggedElement", "attachGlobalHandlers", "detachGlobalHandlers", "subscribe", "subscriber", "unsubscribe", "addSelfManagedArea", "area", "removeSelfManagedArea", "DragRegistry"]
}
