enable panning (#603)
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Connor Turland
GitHub
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c77e3b2da5
commit
34ecf4f70b
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@ -2443,6 +2443,9 @@ Extras.Classes.Navigation = new Class({
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initializePost: function() {
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this.pos = false;
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this.pressed = false;
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// START METAMAPS CODE
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this.initDist = false;
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// END METAMAPS CODE
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},
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onMouseWheel: function(e, win, scroll) {
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@ -2585,7 +2588,120 @@ Extras.Classes.Navigation = new Class({
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// END METAMAPS CODE
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},
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// START METAMAPS CODE
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onTouchStart: function(e, win, eventInfo) {
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if(!this.config.panning) return;
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Metamaps.Mouse.changeInX = 0;
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Metamaps.Mouse.changeInY = 0;
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if((this.config.panning == 'avoid nodes' && eventInfo.getNode()) || eventInfo.getEdge()) return;
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this.pressed = true;
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var rightClick = e.button == 2 || (navigator.platform.indexOf("Mac") != -1 && e.ctrlKey);
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if (!Metamaps.Mouse.boxStartCoordinates && ((e.button == 0 && e.shiftKey) || (e.button == 0 && e.ctrlKey) || rightClick)) {
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Metamaps.Mouse.boxStartCoordinates = eventInfo.getPos();
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}
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Metamaps.Mouse.didPan = false;
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this.pos = eventInfo.getPos();
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var canvas = this.canvas,
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ox = canvas.translateOffsetX,
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oy = canvas.translateOffsetY,
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sx = canvas.scaleOffsetX,
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sy = canvas.scaleOffsetY;
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this.pos.x *= sx;
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this.pos.x += ox;
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this.pos.y *= sy;
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this.pos.y += oy;
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},
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onTouchMove: function(e, win, eventInfo) {
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if(!this.config.panning) return;
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if(!this.pressed) return;
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if(this.config.panning == 'avoid nodes' && (this.dom? this.isLabel(e, win) : eventInfo.getNode())) return;
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if (e.touches.length == 1) {
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var rightClick = e.button == 2 || (navigator.platform.indexOf("Mac") != -1 && e.ctrlKey);
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if (!Metamaps.Mouse.boxStartCoordinates && ((e.button == 0 && e.shiftKey) || (e.button == 0 && e.ctrlKey) || rightClick)) {
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Metamaps.Visualize.mGraph.busy = true;
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Metamaps.boxStartCoordinates = eventInfo.getPos();
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return;
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}
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if (Metamaps.Mouse.boxStartCoordinates && ((e.button == 0 && e.shiftKey) || (e.button == 0 && e.ctrlKey) || rightClick)) {
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Metamaps.Visualize.mGraph.busy = true;
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Metamaps.JIT.drawSelectBox(eventInfo,e);
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return;
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}
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if (rightClick){
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return;
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}
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if (e.target.id != 'infovis-canvas') {
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this.pressed = false;
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return;
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}
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Metamaps.Mouse.didPan = true;
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var thispos = this.pos,
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currentPos = eventInfo.getPos(),
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canvas = this.canvas,
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ox = canvas.translateOffsetX,
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oy = canvas.translateOffsetY,
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sx = canvas.scaleOffsetX,
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sy = canvas.scaleOffsetY;
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currentPos.x *= sx;
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currentPos.y *= sy;
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currentPos.x += ox;
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currentPos.y += oy;
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var x = currentPos.x - thispos.x,
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y = currentPos.y - thispos.y;
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Metamaps.Mouse.changeInX = x;
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Metamaps.Mouse.changeInY = y;
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this.pos = currentPos;
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this.canvas.translate(x * 1/sx, y * 1/sy);
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jQuery(document).trigger(Metamaps.JIT.events.pan);
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}
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/*
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else if (e.touches.length == 2) {
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var touch1 = e.touches[0]
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var touch2 = e.touches[1]
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var canvas = this.canvas
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callCount++;
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var dist = Metamaps.Util.getDistance({
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x: touch1.clientX,
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y: touch1.clientY
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}, {
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x: touch2.clientX,
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y: touch2.clientY
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})
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if (!this.initDist) {
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this.initDist = dist
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this.initScale = canvas.scaleOffsetX
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}
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var scale = (dist / this.initDist)
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document.getElementById("header_content").innerHTML = scale + ' ' + canvas.scaleOffsetX
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if (30 >= this.initScale * scale && this.initScale * scale >= 0.2) {
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canvas.scale(this.initScale * scale, this.initScale * scale)
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}
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if (canvas.scaleOffsetX < 0.5) {
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canvas.viz.labels.hideLabels(true)
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} else if (canvas.scaleOffsetX > 0.5) {
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canvas.viz.labels.hideLabels(false)
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}
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jQuery(document).trigger(Metamaps.JIT.events.zoom);
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}
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*/
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},
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onTouchEnd: function(e, win, eventInfo, isRightClick) {
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if(!this.config.panning) return;
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this.pressed = false;
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if (Metamaps.Mouse.didPan) Metamaps.JIT.SmoothPanning();
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this.initDist = false
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}
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// END METAMAPS CODE
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});
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@ -337,26 +337,10 @@ Metamaps.JIT = {
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Metamaps.JIT.onDragCancelHandler(node, eventInfo, e, false)
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},
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// Implement the same handler for touchscreens
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onTouchStart: function (node, eventInfo, e) {
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Metamaps.Visualize.mGraph.events.touched = true
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var canvas = Metamaps.Visualize.mGraph.canvas
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Metamaps.Touch.touchPos = eventInfo.getPos()
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Metamaps.Touch.touchPos.x *= canvas.scaleOffsetX
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Metamaps.Touch.touchPos.y *= canvas.scaleOffsetY
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Metamaps.Touch.touchPos.x += canvas.translateOffsetX
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Metamaps.Touch.touchPos.y += canvas.translateOffsetY
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touchDragNode = node
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},
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onTouchStart: function (node, eventInfo, e) {},
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// Implement the same handler for touchscreens
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onTouchMove: function (node, eventInfo, e) {
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if (Metamaps.Touch.touchDragNode) {
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Metamaps.JIT.onDragMoveTopicHandler(Metamaps.Touch.touchDragNode, eventInfo, e)
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} else {
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Metamaps.JIT.touchPanZoomHandler(eventInfo, e)
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}
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Metamaps.JIT.onDragMoveTopicHandler(node, eventInfo, e)
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},
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// Implement the same handler for touchscreens
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onTouchEnd: function (node, eventInfo, e) {},
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@ -734,54 +718,6 @@ Metamaps.JIT = {
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Metamaps.Control.deselectAllEdges()
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Metamaps.Control.deselectAllNodes()
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}, // escKeyHandler
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touchPanZoomHandler: function (eventInfo, e) {
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if (e.touches.length == 1) {
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var thispos = Metamaps.Touch.touchPos,
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currentPos = eventInfo.getPos(),
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canvas = Metamaps.Visualize.mGraph.canvas,
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ox = canvas.translateOffsetX,
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oy = canvas.translateOffsetY,
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sx = canvas.scaleOffsetX,
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sy = canvas.scaleOffsetY
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currentPos.x *= sx
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currentPos.y *= sy
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currentPos.x += ox
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currentPos.y += oy
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// var x = currentPos.x - thispos.x,
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// y = currentPos.y - thispos.y
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var x = currentPos.x - thispos.x,
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y = currentPos.y - thispos.y
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Metamaps.Touch.touchPos = currentPos
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Metamaps.Visualize.mGraph.canvas.translate(x * 1 / sx, y * 1 / sy)
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} else if (e.touches.length == 2) {
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var touch1 = e.touches[0]
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var touch2 = e.touches[1]
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var dist = Metamaps.Util.getDistance({
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x: touch1.clientX,
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y: touch1.clientY
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}, {
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x: touch2.clientX,
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y: touch2.clientY
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})
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if (!lastDist) {
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lastDist = dist
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}
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var scale = dist / lastDist
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if (8 >= Metamaps.Visualize.mGraph.canvas.scaleOffsetX * scale && Metamaps.Visualize.mGraph.canvas.scaleOffsetX * scale >= 1) {
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Metamaps.Visualize.mGraph.canvas.scale(scale, scale)
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}
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if (Metamaps.Visualize.mGraph.canvas.scaleOffsetX < 0.5) {
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Metamaps.Visualize.mGraph.canvas.viz.labels.hideLabels(true)
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} else if (Metamaps.Visualize.mGraph.canvas.scaleOffsetX > 0.5) {
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Metamaps.Visualize.mGraph.canvas.viz.labels.hideLabels(false)
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}
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lastDist = dist
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}
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}, // touchPanZoomHandler
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onDragMoveTopicHandler: function (node, eventInfo, e) {
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var self = Metamaps.JIT
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