mirror of
https://github.com/qvacua/vimr.git
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661 lines
20 KiB
Swift
661 lines
20 KiB
Swift
/**
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* Tae Won Ha - http://taewon.de - @hataewon
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* See LICENSE
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*/
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import Cocoa
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import PureLayout
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protocol WorkspaceBarDelegate: class {
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func resizeWillStart(workspaceBar: WorkspaceBar)
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func resizeDidEnd(workspaceBar: WorkspaceBar)
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}
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class WorkspaceBar: NSView, WorkspaceToolDelegate {
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static fileprivate let separatorColor = NSColor.controlShadowColor
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static fileprivate let separatorThickness = CGFloat(1)
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fileprivate var tools = [WorkspaceTool]()
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fileprivate weak var selectedTool: WorkspaceTool?
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fileprivate var isMouseDownOngoing = false
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fileprivate var dragIncrement = CGFloat(1)
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fileprivate var layoutConstraints = [NSLayoutConstraint]()
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fileprivate var isDragOngoing = false
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fileprivate var draggedOnBarButton: WorkspaceToolButton?
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fileprivate var buttonFrames: [WorkspaceTool: CGRect] = [:]
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - API
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static let minimumDimension = CGFloat(50)
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let location: WorkspaceBarLocation
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var isButtonVisible = true {
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didSet {
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self.relayout()
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}
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}
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var isOpen: Bool {
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return self.selectedTool != nil
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}
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var dimensionConstraint = NSLayoutConstraint()
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weak var delegate: WorkspaceBarDelegate?
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init(location: WorkspaceBarLocation) {
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self.location = location
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super.init(frame: CGRect.zero)
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self.configureForAutoLayout()
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self.register(forDraggedTypes: [WorkspaceToolButton.toolUti])
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self.wantsLayer = true
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self.layer!.backgroundColor = NSColor.windowBackgroundColor.cgColor
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}
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func dimensionWithoutTool() -> CGFloat {
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switch self.location {
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case .top, .bottom:
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return WorkspaceToolButton.dimension() + WorkspaceBar.separatorThickness
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case .right, .left:
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return WorkspaceToolButton.dimension() + WorkspaceBar.separatorThickness
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}
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}
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func relayout() {
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self.removeConstraints(self.layoutConstraints)
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self.removeAllSubviews()
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if self.isEmpty() {
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self.set(dimension: 0)
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return
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}
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if self.isButtonVisible {
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self.layoutButtons()
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if self.isOpen {
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let curTool = self.selectedTool!
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self.layout(curTool)
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let newDimension = self.barDimension(withToolDimension: curTool.dimension)
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self.set(dimension: newDimension)
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} else {
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self.set(dimension: self.barDimensionWithButtonsWithoutTool())
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}
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} else {
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if self.isOpen {
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let curTool = self.selectedTool!
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self.layoutWithoutButtons(curTool)
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let newDimension = self.barDimensionWithoutButtons(withToolDimension: curTool.dimension)
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self.set(dimension: newDimension)
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} else {
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self.set(dimension: 0)
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}
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}
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}
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func append(tool: WorkspaceTool) {
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tool.delegate = self
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tool.location = self.location
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tools.append(tool)
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if self.isOpen {
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self.selectedTool?.isSelected = false
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self.selectedTool = tool
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}
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self.relayout()
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}
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}
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// MARK: - NSDraggingDestination
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extension WorkspaceBar {
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fileprivate func isTool(_ tool: WorkspaceTool, beingDragged info: NSDraggingInfo) -> Bool {
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let pasteboard = info.draggingPasteboard()
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guard let uuid = pasteboard.string(forType: WorkspaceToolButton.toolUti) else {
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return false
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}
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return self.tools.filter { $0.uuid == uuid }.first == tool
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}
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override func draggingEntered(_ sender: NSDraggingInfo) -> NSDragOperation {
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self.buttonFrames.removeAll()
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self.tools.forEach { self.buttonFrames[$0] = $0.button.frame }
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self.isDragOngoing = true
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return .move
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}
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override func draggingUpdated(_ sender: NSDraggingInfo) -> NSDragOperation {
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let loc = self.convert(sender.draggingLocation(), from: nil)
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let currentDraggedOnButton = self.buttonFrames
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.reduce(nil) { (result, entry) -> WorkspaceToolButton? in
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if result != nil {
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return result
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}
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if entry.value.contains(loc) {
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if self.isTool(entry.key, beingDragged: sender) {
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return nil
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}
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return entry.key.button
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}
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return nil
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}
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if currentDraggedOnButton == self.draggedOnBarButton {
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return .move
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}
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self.draggedOnBarButton = currentDraggedOnButton
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self.relayout()
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return .move
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}
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override func draggingEnded(_ sender: NSDraggingInfo?) {
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self.endDrag()
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}
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override func draggingExited(_ sender: NSDraggingInfo?) {
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self.endDrag()
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}
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fileprivate func endDrag() {
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self.isDragOngoing = false
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self.draggedOnBarButton = nil
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self.relayout()
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}
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}
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// MARK: - NSView
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extension WorkspaceBar {
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override func draw(_ dirtyRect: NSRect) {
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// super.draw(dirtyRect)
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if self.isButtonVisible {
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self.drawInnerSeparator(dirtyRect)
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}
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if self.isOpen {
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self.drawOuterSeparator(dirtyRect)
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}
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}
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override func hitTest(_ point: NSPoint) -> NSView? {
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if self.resizeRect().contains(point) {
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return self
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}
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return super.hitTest(point)
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}
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override func mouseDown(with event: NSEvent) {
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guard self.isOpen else {
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return
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}
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if self.isMouseDownOngoing {
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return
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}
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let initialMouseLoc = self.convert(event.locationInWindow, from: nil)
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let mouseInResizeRect = NSMouseInRect(initialMouseLoc, self.resizeRect(), self.isFlipped)
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guard mouseInResizeRect && event.type == .leftMouseDown else {
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super.mouseDown(with: event)
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return
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}
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self.isMouseDownOngoing = true
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self.delegate?.resizeWillStart(workspaceBar: self)
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self.dimensionConstraint.priority = NSLayoutPriorityDragThatCannotResizeWindow - 1
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var dragged = false
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var curEvent = event
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let nextEventMask: NSEventMask = [
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NSEventMask.leftMouseDragged,
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NSEventMask.leftMouseDown,
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NSEventMask.leftMouseUp
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]
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while curEvent.type != .leftMouseUp {
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let nextEvent = NSApp.nextEvent(matching: nextEventMask,
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until: Date.distantFuture,
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inMode: RunLoopMode.eventTrackingRunLoopMode,
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dequeue: true)
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guard nextEvent != nil else {
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break
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}
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curEvent = nextEvent!
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guard curEvent.type == .leftMouseDragged else {
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break
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}
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let curMouseLoc = self.convert(curEvent.locationInWindow, from: nil)
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let distance = sq(initialMouseLoc.x - curMouseLoc.x) + sq(initialMouseLoc.y - curMouseLoc.y)
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guard dragged || distance >= 1 else {
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continue
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}
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let locInSuperview = self.superview!.convert(curEvent.locationInWindow, from: nil)
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let newDimension = self.newDimension(forLocationInSuperview: locInSuperview)
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self.set(dimension: newDimension)
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dragged = true
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}
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self.dimensionConstraint.priority = NSLayoutPriorityDragThatCannotResizeWindow
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self.isMouseDownOngoing = false
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self.delegate?.resizeDidEnd(workspaceBar: self)
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}
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override func resetCursorRects() {
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guard self.isOpen else {
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return
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}
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switch self.location {
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case .top, .bottom:
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self.addCursorRect(self.resizeRect(), cursor: NSCursor.resizeUpDown())
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case .right, .left:
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self.addCursorRect(self.resizeRect(), cursor: NSCursor.resizeLeftRight())
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}
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}
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fileprivate func drawInnerSeparator(_ dirtyRect: NSRect) {
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WorkspaceBar.separatorColor.set()
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let innerLineRect = self.innerSeparatorRect()
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if dirtyRect.intersects(innerLineRect) {
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NSRectFill(innerLineRect)
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}
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}
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fileprivate func drawOuterSeparator(_ dirtyRect: NSRect) {
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WorkspaceBar.separatorColor.set()
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let outerLineRect = self.outerSeparatorRect()
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if dirtyRect.intersects(outerLineRect) {
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NSRectFill(outerLineRect)
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}
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}
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fileprivate func buttonSize() -> CGSize {
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if self.isEmpty() {
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return CGSize.zero
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}
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return WorkspaceToolButton.size(forLocation: self.location)
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}
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fileprivate func innerSeparatorRect() -> CGRect {
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let bounds = self.bounds
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let thickness = WorkspaceBar.separatorThickness
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let bar = self.buttonSize()
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switch self.location {
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case .top:
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return CGRect(x: 0, y: bounds.height - bar.height - thickness, width: bounds.width, height: thickness)
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case .right:
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return CGRect(x: bounds.width - bar.width - thickness, y: 0, width: thickness, height: bounds.height)
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case .bottom:
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return CGRect(x: 0, y: bar.height, width: bounds.width, height: thickness)
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case .left:
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return CGRect(x: bar.width, y: 0, width: thickness, height: bounds.height)
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}
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}
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fileprivate func newDimension(forLocationInSuperview locInSuperview: CGPoint) -> CGFloat {
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let dimension = self.dimension(forLocationInSuperview: locInSuperview)
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return self.dragIncrement * floor(dimension / self.dragIncrement)
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}
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fileprivate func dimension(forLocationInSuperview locInSuperview: CGPoint) -> CGFloat {
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let superviewBounds = self.superview!.bounds
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switch self.location {
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case .top:
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return superviewBounds.height - locInSuperview.y
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case .right:
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return superviewBounds.width - locInSuperview.x
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case .bottom:
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return locInSuperview.y
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case .left:
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return locInSuperview.x
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}
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}
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fileprivate func sq(_ number: CGFloat) -> CGFloat {
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return number * number
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}
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fileprivate func outerSeparatorRect() -> CGRect {
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let thickness = WorkspaceBar.separatorThickness
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switch self.location {
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case .top:
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return CGRect(x: 0, y: 0, width: self.bounds.width, height: thickness)
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case .right:
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return CGRect(x: 0, y: 0, width: thickness, height: self.bounds.height)
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case .bottom:
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return CGRect(x: 0, y: self.bounds.height - thickness, width: self.bounds.width, height: thickness)
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case .left:
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return CGRect(x: self.bounds.width - thickness, y: 0, width: thickness, height: self.bounds.height)
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}
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}
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fileprivate func resizeRect() -> CGRect {
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let separatorRect = self.outerSeparatorRect()
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let clickDimension = CGFloat(4)
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switch self.location {
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case .top:
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return separatorRect.offsetBy(dx: 0, dy: clickDimension).union(separatorRect)
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case .right:
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return separatorRect.offsetBy(dx: clickDimension, dy: 0).union(separatorRect)
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case .bottom:
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return separatorRect.offsetBy(dx: 0, dy: -clickDimension).union(separatorRect)
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case .left:
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return separatorRect.offsetBy(dx: -clickDimension, dy: 0).union(separatorRect)
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}
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}
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fileprivate func set(dimension: CGFloat) {
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let saneDimension = self.saneDimension(from: dimension)
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self.dimensionConstraint.constant = saneDimension
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let toolDimension = self.toolDimension(fromBarDimension: saneDimension)
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if self.isOpen {
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self.selectedTool?.dimension = toolDimension
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}
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// In 10.12 we need the following, otherwise resizing the tools does not work correctly.
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self.layoutSubtreeIfNeeded()
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self.window?.invalidateCursorRects(for: self)
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self.needsDisplay = true
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}
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fileprivate func saneDimension(from dimension: CGFloat) -> CGFloat {
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if dimension == 0 {
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return 0
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}
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if self.isOpen {
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return max(dimension, self.selectedTool!.minimumDimension, WorkspaceBar.minimumDimension)
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}
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return max(dimension, self.barDimensionWithButtonsWithoutTool())
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}
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}
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// MARK: - Layout
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extension WorkspaceBar {
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fileprivate func isEmpty() -> Bool {
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return self.tools.isEmpty
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}
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fileprivate func hasTools() -> Bool {
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return !self.isEmpty()
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}
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fileprivate func layoutWithoutButtons(_ tool: WorkspaceTool) {
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let view = tool.view
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let thickness = WorkspaceBar.separatorThickness
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self.addSubview(view)
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switch self.location {
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case .top:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top),
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view.autoPinEdge(toSuperviewEdge: .right),
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view.autoPinEdge(toSuperviewEdge: .bottom, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .left),
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view.autoSetDimension(.height, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .right:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top),
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view.autoPinEdge(toSuperviewEdge: .right),
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view.autoPinEdge(toSuperviewEdge: .bottom),
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view.autoPinEdge(toSuperviewEdge: .left, withInset: thickness),
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view.autoSetDimension(.width, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .bottom:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .right),
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view.autoPinEdge(toSuperviewEdge: .bottom),
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view.autoPinEdge(toSuperviewEdge: .left),
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view.autoSetDimension(.height, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .left:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top),
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view.autoPinEdge(toSuperviewEdge: .right, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .bottom),
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view.autoPinEdge(toSuperviewEdge: .left),
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view.autoSetDimension(.width, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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}
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}
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fileprivate func layout(_ tool: WorkspaceTool) {
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let view = tool.view
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let button = tool.button
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let thickness = WorkspaceBar.separatorThickness
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self.addSubview(view)
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switch self.location {
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case .top:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(.top, to: .bottom, of: button, withOffset: thickness),
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view.autoPinEdge(toSuperviewEdge: .right),
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view.autoPinEdge(toSuperviewEdge: .bottom, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .left),
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view.autoSetDimension(.height, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .right:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top),
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view.autoPinEdge(.right, to: .left, of: button, withOffset: -thickness), // Offset is count l -> r,
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view.autoPinEdge(toSuperviewEdge: .bottom),
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view.autoPinEdge(toSuperviewEdge: .left, withInset: thickness),
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view.autoSetDimension(.width, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .bottom:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .right),
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view.autoPinEdge(.bottom, to: .top, of: button, withOffset: -thickness), // Offset is count t -> b,
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view.autoPinEdge(toSuperviewEdge: .left),
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view.autoSetDimension(.height, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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case .left:
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self.layoutConstraints.append(contentsOf: [
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view.autoPinEdge(toSuperviewEdge: .top),
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view.autoPinEdge(toSuperviewEdge: .right, withInset: thickness),
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view.autoPinEdge(toSuperviewEdge: .bottom),
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view.autoPinEdge(.left, to: .right, of: button, withOffset: thickness),
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view.autoSetDimension(.width, toSize: tool.minimumDimension, relation: .greaterThanOrEqual)
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])
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}
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}
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fileprivate func draggedButtonDimension() -> CGFloat {
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guard let button = self.draggedOnBarButton else {
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return 0
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}
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switch button.location {
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case .top, .bottom:
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switch self.location {
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case .top, .bottom:
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return button.intrinsicContentSize.width
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case .left, .right:
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return button.intrinsicContentSize.width
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}
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case .left, .right:
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switch self.location {
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case .top, .bottom:
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return button.intrinsicContentSize.height
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case .left, .right:
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return button.intrinsicContentSize.height
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}
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}
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}
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fileprivate func layoutButtons() {
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guard let firstTool = self.tools.first else {
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return
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}
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self.tools
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.map { $0.button }
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.forEach(self.addSubview)
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let dimensionForDraggedButton = self.draggedButtonDimension()
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let firstButton = firstTool.button
|
|
let firstButtonMargin = self.draggedOnBarButton == firstButton ? dimensionForDraggedButton : 0
|
|
switch self.location {
|
|
case .top:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
firstButton.autoPinEdge(toSuperviewEdge: .top),
|
|
firstButton.autoPinEdge(toSuperviewEdge: .left, withInset: firstButtonMargin),
|
|
])
|
|
case .right:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
firstButton.autoPinEdge(toSuperviewEdge: .top, withInset: firstButtonMargin),
|
|
firstButton.autoPinEdge(toSuperviewEdge: .right),
|
|
])
|
|
case .bottom:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
firstButton.autoPinEdge(toSuperviewEdge: .left, withInset: firstButtonMargin),
|
|
firstButton.autoPinEdge(toSuperviewEdge: .bottom),
|
|
])
|
|
case .left:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
firstButton.autoPinEdge(toSuperviewEdge: .top, withInset: firstButtonMargin),
|
|
firstButton.autoPinEdge(toSuperviewEdge: .left),
|
|
])
|
|
}
|
|
|
|
var lastButton = firstButton
|
|
self.tools[1..<self.tools.count]
|
|
.map({ $0.button })
|
|
.forEach { button in
|
|
let margin = self.draggedOnBarButton == button ? dimensionForDraggedButton : 0
|
|
switch self.location {
|
|
case .top:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
button.autoPinEdge(toSuperviewEdge: .top),
|
|
button.autoPinEdge(.left, to: .right, of: lastButton, withOffset: margin),
|
|
])
|
|
case .right:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
button.autoPinEdge(.top, to: .bottom, of: lastButton, withOffset: margin),
|
|
button.autoPinEdge(toSuperviewEdge: .right),
|
|
])
|
|
case .bottom:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
button.autoPinEdge(.left, to: .right, of: lastButton, withOffset: margin),
|
|
button.autoPinEdge(toSuperviewEdge: .bottom),
|
|
])
|
|
case .left:
|
|
self.layoutConstraints.append(contentsOf: [
|
|
button.autoPinEdge(.top, to: .bottom, of: lastButton, withOffset: margin),
|
|
button.autoPinEdge(toSuperviewEdge: .left),
|
|
])
|
|
}
|
|
|
|
lastButton = button
|
|
}
|
|
}
|
|
|
|
fileprivate func barDimensionWithButtonsWithoutTool() -> CGFloat {
|
|
switch self.location {
|
|
case .top, .bottom:
|
|
return self.buttonSize().height + WorkspaceBar.separatorThickness
|
|
case .right, .left:
|
|
return self.buttonSize().width + WorkspaceBar.separatorThickness
|
|
}
|
|
}
|
|
|
|
fileprivate func barDimensionWithoutButtons(withToolDimension toolDimension: CGFloat) -> CGFloat {
|
|
return toolDimension + WorkspaceBar.separatorThickness
|
|
}
|
|
|
|
fileprivate func barDimension(withToolDimension toolDimension: CGFloat) -> CGFloat {
|
|
return self.barDimensionWithButtonsWithoutTool() + toolDimension + WorkspaceBar.separatorThickness
|
|
}
|
|
|
|
fileprivate func toolDimension(fromBarDimension barDimension: CGFloat) -> CGFloat {
|
|
if self.isButtonVisible {
|
|
return barDimension - WorkspaceBar.separatorThickness - barDimensionWithButtonsWithoutTool()
|
|
}
|
|
|
|
return barDimension - WorkspaceBar.separatorThickness
|
|
}
|
|
}
|
|
|
|
// MARK: - WorkspaceToolDelegate
|
|
extension WorkspaceBar {
|
|
|
|
func toggle(_ tool: WorkspaceTool) {
|
|
self.delegate?.resizeWillStart(workspaceBar: self)
|
|
|
|
if self.isOpen {
|
|
let curTool = self.selectedTool!
|
|
if curTool == tool {
|
|
// In this case, curTool.isSelected is already set to false in WorkspaceTool.toggle()
|
|
self.selectedTool = nil
|
|
} else {
|
|
curTool.isSelected = false
|
|
self.selectedTool = tool
|
|
}
|
|
|
|
} else {
|
|
self.selectedTool = tool
|
|
}
|
|
|
|
self.relayout()
|
|
|
|
self.delegate?.resizeDidEnd(workspaceBar: self)
|
|
}
|
|
}
|