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TiddlyWiki5/plugins/tiddlywiki/stacked-view/stacked.js

88 lines
2.7 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/stacked-view/stacked.js
type: application/javascript
module-type: storyview
Keeps tiddlers in a stack
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var easing = "cubic-bezier(0.645, 0.045, 0.355, 1)"; // From http://easings.net/#easeInOutCubic
var StackedListView = function(listWidget) {
var self = this;
this.listWidget = listWidget;
this.fanHeightConfigTitle = listWidget.getVariable("tv-stacked-storyview-fan-height-config-title");
this.placeTiddlers();
};
StackedListView.prototype.placeTiddlers = function() {
// Initialise the stack of tiddler titles
this.listStack = [];
var numItems = this.listWidget.children.length,
t, itemWidget,
duration = $tw.utils.getAnimationDuration();
for(t=numItems-1; t>=0; t--) {
itemWidget = this.listWidget.children[t];
this.listStack.push(itemWidget.parseTreeNode.itemTitle);
}
// Ensure the tiddler at the top of the history stack is at the top of the array
var history = this.listWidget.wiki.getTiddlerData(this.listWidget.historyTitle,[]);
for(t=0; t<history.length; t++) {
var title = history[t].title;
if(this.listStack.indexOf(title) !== -1) {
$tw.utils.pushTop(this.listStack,title);
}
}
// Get the configured fan height
var fanHeight = parseInt(this.listWidget.wiki.getTiddlerText(this.fanHeightConfigTitle),10);
// Position each tiddler
for(var t=numItems-1; t>=0; t--) {
// Get the DOM node for this tiddler
itemWidget = this.listWidget.children[t];
var domNode = itemWidget.findFirstDomNode();
if(domNode instanceof Element) {
// Allows the width of the tiddler to be adjusted
$tw.utils.addClass(domNode,"tc-storyview-zoomin-tiddler");
// Find the position of the tiddler in the stack
var pos = this.listStack.indexOf(itemWidget.parseTreeNode.itemTitle);
if(pos !== -1) {
// Style the tiddler to position it
var posFactor = pos/(numItems-1);
$tw.utils.setStyle(domNode,[
{position: "absolute"},
{transformOrigin: "50% 0"},
{transition: $tw.utils.roundTripPropertyName("transform") + " " + duration * (0.5 + posFactor) + "ms " + easing},
{transform: "translateX(0px) translateY(" + (fanHeight * posFactor * posFactor) + "px) scale(" + (0.1 + posFactor * 0.9) + ")"},
{zIndex: pos + ""}
]);
}
}
}
};
StackedListView.prototype.refreshStart = function(changedTiddlers,changedAttributes) {
};
StackedListView.prototype.refreshEnd = function(changedTiddlers,changedAttributes) {
this.placeTiddlers();
};
StackedListView.prototype.navigateTo = function(historyInfo) {
};
StackedListView.prototype.insert = function(widget) {
};
StackedListView.prototype.remove = function(widget) {
widget.removeChildDomNodes();
};
exports.stacked = StackedListView;
})();