Index: third_party/polymer/components-chromium/core-drag-drop/core-drag-drop-extracted.js |
diff --git a/third_party/polymer/components-chromium/core-drag-drop/core-drag-drop-extracted.js b/third_party/polymer/components-chromium/core-drag-drop/core-drag-drop-extracted.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8d7f994fcf5534112d27204ae27ba44e10b9109c |
--- /dev/null |
+++ b/third_party/polymer/components-chromium/core-drag-drop/core-drag-drop-extracted.js |
@@ -0,0 +1,80 @@ |
+ |
+ |
+ Polymer('core-drag-drop', { |
+ |
+ observe: { |
+ 'x y': 'coordinatesChanged' |
+ }, |
+ |
+ ready: function() { |
+ if (!this.__proto__.avatar) { |
+ this.__proto__.avatar = document.createElement('core-drag-avatar'); |
+ document.body.appendChild(this.avatar); |
+ } |
+ this.dragging = false; |
+ }, |
+ |
+ draggingChanged: function() { |
+ this.avatar.style.display = this.dragging ? '' : 'none'; |
+ }, |
+ |
+ coordinatesChanged: function() { |
+ var x = this.x, y = this.y; |
+ this.avatar.style.transform = |
+ this.avatar.style.webkitTransform = |
+ 'translate(' + x + 'px, ' + y + 'px)'; |
+ }, |
+ |
+ attached: function() { |
+ var listen = function(event, handler) { |
+ Polymer.addEventListener(this.parentNode, event, this[handler].bind(this)); |
+ }.bind(this); |
+ // |
+ listen('trackstart', 'trackStart'); |
+ listen('track', 'track'); |
+ listen('trackend', 'trackEnd'); |
+ // |
+ var host = this.parentNode.host || this.parentNode; |
+ host.style.cssText += '; user-select: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none;'; |
+ }, |
+ |
+ trackStart: function(event) { |
+ this.avatar.style.cssText = ''; |
+ this.dragInfo = { |
+ event: event, |
+ avatar: this.avatar |
+ }; |
+ this.fire('drag-start', this.dragInfo); |
+ // flaw #1: what if user doesn't need `drag()`? |
+ this.dragging = Boolean(this.dragInfo.drag); |
+ }, |
+ |
+ track: function(event) { |
+ if (this.dragging) { |
+ this.x = event.pageX; |
+ this.y = event.pageY; |
+ this.dragInfo.event = event; |
+ this.dragInfo.p = {x : this.x, y: this.y}; |
+ this.dragInfo.drag(this.dragInfo); |
+ } |
+ }, |
+ |
+ trackEnd: function(event) { |
+ if (this.dragging) { |
+ this.dragging = false; |
+ if (this.dragInfo.drop) { |
+ this.dragInfo.framed = this.framed(event.relatedTarget); |
+ this.dragInfo.event = event; |
+ this.dragInfo.drop(this.dragInfo); |
+ } |
+ } |
+ this.dragInfo = null; |
+ }, |
+ |
+ framed: function(node) { |
+ var local = node.getBoundingClientRect(); |
+ return {x: this.x - local.left, y: this.y - local.top}; |
+ } |
+ |
+ }); |
+ |