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1 line
16 KiB
JSON
1 line
16 KiB
JSON
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{"ast":null,"code":"class GestureController {\n constructor() {\n this.gestureId = 0;\n this.requestedStart = new Map();\n this.disabledGestures = new Map();\n this.disabledScroll = new Set();\n }\n /**\n * Creates a gesture delegate based on the GestureConfig passed\n */\n createGesture(config) {\n return new GestureDelegate(this, this.newID(), config.name, config.priority || 0, !!config.disableScroll);\n }\n /**\n * Creates a blocker that will block any other gesture events from firing. Set in the ion-gesture component.\n */\n createBlocker(opts = {}) {\n return new BlockerDelegate(this, this.newID(), opts.disable, !!opts.disableScroll);\n }\n start(gestureName, id, priority) {\n if (!this.canStart(gestureName)) {\n this.requestedStart.delete(id);\n return false;\n }\n this.requestedStart.set(id, priority);\n return true;\n }\n capture(gestureName, id, priority) {\n if (!this.start(gestureName, id, priority)) {\n return false;\n }\n const requestedStart = this.requestedStart;\n let maxPriority = -10000;\n requestedStart.forEach(value => {\n maxPriority = Math.max(maxPriority, value);\n });\n if (maxPriority === priority) {\n this.capturedId = id;\n requestedStart.clear();\n const event = new CustomEvent('ionGestureCaptured', {\n detail: {\n gestureName\n }\n });\n document.dispatchEvent(event);\n return true;\n }\n requestedStart.delete(id);\n return false;\n }\n release(id) {\n this.requestedStart.delete(id);\n if (this.capturedId === id) {\n this.capturedId = undefined;\n }\n }\n disableGesture(gestureName, id) {\n let set = this.disabledGestures.get(gestureName);\n if (set === undefined) {\n set = new Set();\n this.disabledGestures.set(gestureName, set);\n }\n set.add(id);\n }\n enableGesture(gestureName, id) {\n const set = this.disabledGestures.get(gestureName);\n if (set !== undefined) {\n set.delete(id);\n }\n }\n disableScroll(id) {\n this.disabledScroll.add(id);\n if (this.disabledScroll.size === 1) {\n document.body.classList.add(BACKDROP_NO_SCROLL);\n }\n }\n enableScroll(id) {\n this.disabledScroll.delete(id);\n if (this.disabledScroll.size === 0) {\n document.body.classList.remove(BACKDROP_NO_SCROLL);\n }\n }\n canStart(gestureName) {\n if (this.capturedId !== undefined) {\n // a gesture already captured\n return false;\n }\n if (this.isDisabled(gestureName)) {\n return false;\n }\n return true;\n }\n isCaptured() {\n return this.capturedId !== undefined;\n }\n isScrollDisabled() {\n return this.disabledScroll.size > 0;\n }\n isDisabled(gestureName) {\n const disabled = this.disabledGestures.get(gestureName);\n if (disabled && disabled.size > 0) {\n return true;\n }\n return false;\n }\n newID() {\n this.gestureId++;\n return this.gestureId;\n }\n}\nclass GestureDelegate {\n constructor(ctrl, id, name, priority, disableScroll) {\n this.id = id;\n this.name = name;\n this.disableScroll = disableScroll;\n this.priority = priority * 1000000 + id;\n this.ctrl = ctrl;\n }\n canStart() {\n if (!this.ctrl) {\n return false;\n }\n return this.ctrl.canStart(this.name);\n }\n start() {\n if (!this.ctrl) {\n return false;\n }\n return this.ctrl.start(this.name, this.id, this.priority);\n }\n capture() {\n if (!this.ctrl) {\n return false;\n }\n const captured = this.ctrl.capture(this.name, this.id, this.priority);\n if (captured && this.disableScroll) {\n this.ctrl.disableScroll(this.id);\n }\n return captured;\n }\n release() {\n if (this.ctrl) {\n this.ctrl.release(this.id);\n if (this.disableScroll) {\n this.ctrl.enableScroll(this.id);\n }\n }\n }\n destroy() {\n this.release();\n this.ctrl = undefined;\n }\n}\nclass BlockerDelegate {\n constructor(ctrl, id, disable, disableScroll) {\n this
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